HomeMy WebLinkAboutResolution No. 20-7972 - Mitigated Negative Declaration and Reporting Program for the Lakewood ProjectA RESOLUTION OF THE CITY COUNCIL OF THE CITY OF DOWNEY
ADOPTING THE MITIGATED NEGATIVE DECLARATION AND MITIGATION
MONITORING AND REPORTING PROGRAM FOR THE LAKEWOOD
BOULEVARD AT FLORENCE AVENUE INTERSECTION IMPROVEMENT
PROJECT IN ACCORDANCE WITH THE REQUIREMENTS OF THE
CALIFORNIA ENVIRONMENTAL QUALITY ACT
111AEREAS, the City of Downey (City) intends to improve the Lakewood Boulevard at
Florence Avenue intersection by reconstructing said intersection as a concrete intersection as
well as enhancing the capacity of the intersection by constructing additional turn lanes; and
WHEREAS, a Notice of Intent to adopt a Mitigated Negative Declaration, attached here
in as Exhibit "A", was prepared for this project on August 6, 2020 in accordance with Section
21092 of the Public Resources Code and sent to the Governor's Office of Planning and
Research, State Clearinghouse and other applicable organizations. The notice included a
description of the project, the dates of the Mitigated Negative Declaration public comment
period, the location where the Mitigated Negative Declaration could be reviewed and a
statement that the project would not result in any significant environmental impacts with
gation; and,
WHEREAS, the Mitigated Negative Declaration, along with the Initial Study and
Mitigation Monitoring and Reporting Program, attached here in as Exhibit "B", was subsequently
prepared for this project in accordance with Sections 15070-15075 of the California
Environmental Quality Act (CEQA); and,
WHEREAS, the 35-day review period for the Mitigated Negative Declaration was
initiated on August 10, 2020. Copies of the draft document were available for review by the
public at City Hall and the document was also posted on the City's website on August 6, 2020;
and,
WHEREAS, comments were received on the Mitigated Negative Declaration from three
public agencies during the public comment period.
MIL OF TAE CITTOF 13014,4111ET DOES
ORDAIN AS FOLLOWS:
Project. Based on its own independent judgment that the facts stated in the Initial Study are
true, the City Council hereby adopts the Mitigated Negative Declaration of Environmental
Impacts and associated Mitigation Monitoring and Reporting Program for said project, dated
September 2020, in compliance with CEQA guidelines.
SECTION 2. The City Clerk shall certify to the adoption of this Resolution which shal]
be effective upon its adoption.
APPROVED AND ADOPTED this 1 oth day of November
Z7
7! 71;.
BLANCA PACHECO, Mayor
RESOLUTION NO. 20-7972
PAGE 2
4A LC DUA E, CWC
City Clerk
I HEREBY CERTIFY that the foregoing Resolution was adopted by the City Council of
the City of Downey at a Regular meeting held on the 1 oth day of November, 2020, by the
following vote, to wit:
TES:
Council Members:
Ashton, Saab, Rodriguez Frometa, Mayor Pachect
NOES:
Council Member:
None.
ABSENT:
Council Member:
None.
ABSTAIR
Council Member:
None.
I i Rio MAI :4
•tyofDowney PUBLIC WORKS DEPARTMENT
11111 Brookshire Avenue, Downey, California 90241
Tel: (562) 869-7331 www.downeyca.org
NOTICEF INTENT
MITIGATED NEGATIVEDECLARATION
for the Lakewood oulev r at Florence Intersection Improvement Project
(CIP No.1-07)
This serves as the City of Downey's (City) Notice of Intent to adopt a Mitigated Negative Declaration (MND) for
the Lakewood Boulevard at Florence Intersection Improvement Project, prepared in accordance with the
California Environmental Quality Act (CQ), CEQA Guidelines and local implementation procedures.
Name of Project: Lakewood Boulevard at Florence Intersection Improvement Project
Project Location: Regionally, the project site is located in the northeastern portion of the City, within the County of Los
Angeles. Locally, the project site is the intersection of Lakewood Boulevard at Florence Avenue.
Lead Agency: City of Downey, 11111 Brookshire Avenue, Downey, California 90241
Project Description: The proposed project involves roadway widening, to provide additional left turn lanes in the northbound and
southbound directions on Lakewood Boulevard, pavement reconstruction, traffic signal modification and
utility relocations to the existing Lakewood Boulevard at Florence Avenue intersection within the City of
Downey. The project area includes the Lakewood Boulevard at Florence Avenue intersection and
approximately 150 feet to 500 feet of all four roadway approaches. Partial right-of-way acquisition will be
required on the east side of Lakewood Boulevard and on the south side of Florence Avenue east of
Lakewood Boulevard in order to provide the necessary street width for the additional turn lanes.
NOTICE IS HEREBY GIVEN THAT the City Council, pursuant to law, will conduct a public hearing at its regular City Council meeting
on a future date to be determined at 6:30 p.m., in the City Council Chambers, 11111 Brookshire Avenue, Downey, California, to
consider the Mitigated Negative Declaration. To confirm the date and time of the meeting, please check the City's website:
http://www.downeyca.org. The MND is based on the finding that, by implementing the identified mitigation measures, the project's
potential significant adverse impacts will be reduced to a less than significant level. The reasons to support such a finding are
documented by an Initial Study prepared by the City. Copies of the Initial Study, the proposed MND, and supporting materials are
available for public review at the following locations:
• Downey City Hall, Public Works Department, 11111 Brookshire Avenue, Downey, California 90241
• City of Downey website at jh °li downs ca,org
Public Review Period: Begins —August 10, 2020 Ends — September 11, 2020
Any person wishing to comment on the proposed project may do so in writing and must be received by the City no later than 5 00
p.m. on the closing date of the public review period as cited above; or, may appear and be heard at the time and place noted
above for the public hearing. All comments will be submitted to the City Council, and the City Council will consider such written
comments, in addition to any oral testimony, before making a decision on the proposed project.
If this project is challenged in court, the issues may be limited to those raised at the public hearing, described in this notice, or in
written correspondence delivered to the City Council at, or prior to, the public hearing. Be advised that as a result of public hearings
and comment, the City Council may amend, in whole or in part, the proposed project. Accordingly, the designations, development
standards, design or improvements, or any properties or lands within the boundaries of the proposed project may be changed in a
way other than specifically proposed.
The City of Downey sent a Notice of Project Application to numerous Native American tribes notifying each of the opportunity to
consult with the City on the proposed project. The City did not receive a request to consult on this project within the 30 days specified
as part of California Public Resources Code § 21080.3.1.
Hazardous Waste Sites: The project site is not identified on any of the lists enumerated under Government Code Section 65962.5.
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Improvement Project (CIP
19-07)
Lakewood Boulevard and Florence Intersection
LEAD AGENCY: PREPARED BY.-
11111 Brookshire Avenue 30900 Rancho Viejo Road, Suite 100
Downey, California 90241 San Juan Capistrano, California 92675
Contact: Ed Norris Contact: Dan Oott
562.904.7110 949,489.2700
Cityofbowne
Citv i'-)f Dovvnev
11111 Brookshire Avenue
Downey, California 90241
Contact: Ed Norris
562.90U1 10
211IMMURM
VC.-S
30900 Rancho Viejo Road, Suite 100
San Juan Capistrano, California 92675
Contact: Dan Batt
949,489.2700
A004109%
aC#y6fDownO
VI-ITIMITC44
City of Downey
11111 Brookshire Avenue
Dgwney,q California 90241
Contact: Ed Norris
562.904.7110
YCS Environmental
30900 Rancho Viejo Road, Suite 100
San Juan Capistrano, California 92675
Contact: Dan Bott
949.489.2700
MMMI
This document has been setup for double -sided printing in order to conserve natural resources.
LAKEtgOOD POIILI ARD AND FL ORENCE INTERSECTION IMPROVEMENT PROJECT (CIP % 19-07)
nitlA L'tUdy w�didgateo Negative 1kdara!ion
;, i �I l� J1Ujl
1.0
Environmental Summary ....... :. ....... . ........ . ... ...... ........ --- ....... ...........................
1.1
Background..,,.........,,.,...,...... ... , ......,, ....... ,....,..,.......................
1.2
Environmental Factors Potentially Affected ............. ....... ...............:........... .............
1-2
1.3
Lead Agency Determination ............................ .......,. .,,...a„. ....,.,,:..,,.............. ..............
1-3
1.4
Evaluation of Environmental Impacts ............. ........: ......... ........:..............................1-4
2.0
Introduction .................. ......... .......:......... ........ ....... ..... ....... „ ,, ., .. ....... , ...,..._. .,.....,.,.,...,.,
.2 1
2.1
Purpose ................................................. ....
2 1
2.2
Statutory Authority and Requirements........ ;,.. ,,...:... .... .: ........: ........ ......... .w.,,a...2
1
2.3
Consultation............................................................................. ......... . ........
......2-1
2.4
Intended Uses of this Initial Study/Mitigated Negative Declaration........
.....2-1
2.5
Incorporation by Reference............................................................... ........ ,,.....:..---2-2
3.0
Project Description ................................ ..... .... ....... ...,,.,e ...,.... , „ ...... .......3-1
3.1
Proposed Project ....................... .....:. ......>:...,......... . ...... ....,.. w, ..,..,.;. ,.,..., . ........3
1
3.2
Existing Environmental Setting.,.....--.- ............... ......,, ......, .. ,.,.,,... ...„..........3-1
3.3
Project Characteristics .............. .......: ............ . ..... .......„ , ...... ......... ........3
7
3.4
Construction Phasing............ .., „ , ...
..•3-7
3.5
Permits and Approvals ................ . .... ......... ............ .... ... ........ ....,...,., ....
3-12
4.0
Environmental Analysis ................................... ........ ...... . . ,,.,,.,.. ,.. , ...,., ...............
4.1-1
4.1
Aesthetics ................................. ........ ......... ........ ....... . ... ...... .... ...:. . ......m: -.
4.1-1
4.2
Agriculture and Forestry Resources,.: ,,,,, ., .-: „ ....... ........ .......:: ..., ,,,e>..,, , ..........
4.2-1
4.3
Air Quality ................................ ....... .. . ...... . ......... ............ ................... ............
4.3-1
4.4
Biological Resources ......................... .,,.,,..:.... ,,... ......,.: ,....x_.. .,.....,, ...,,, ., .....
4.4-1
4.5
Cultural Resources ............................ .....a „ ,..,.
4.5-1
4.6
Energy ....................................... ......... .....,..a ,....,.., .......... ,,..,..,..,,., , „ .., .,,.a,.....
4.6-1
4.7
Geology and Soils .............................. ........ . .........................
4.7-1
4.8
Greenhouse Gas Emissions ................. ...... ...... ........................
4.8-1
4.9
Hazards and Hazardous Materials..........., .,, ........., ........................
4.9-1
4.10
Hydrology and Water Quality ............. ....... .. ...w:,,,, ............ .,...; .........................
4,10-1
4.11
Land Use and Planning ........................ ........... ......... ......... ......... .........................4.11-1
4.12
Mineral Resources ............................... ........ . ............... . .. . ...... ........................
4.12-1
4.13
Noise. ............... ............................................ ......x.-. .,,...,... , ....,. .........................
4.13-1
4.14
Population and Housing ....................... ...... --- ....... .. ....... .......... .„.......................4.14-1
4.15
Public Services ..................................... ........ .......: ........ ........ .........................
4.15-1
4.16
Recreation........................................................ .......<: ,.,.....,: , ..,...., ...,......................
4.16-1
4.17
Transportation/Traffic ......................... ......... ......... . ........ ................. ..................
4.17-1
4.18
Tribal Cultural Resources ............................. .: ......... ........: ... ......: .........................
4.18-1
4.19
Utilities and Service Systems ............... ......... ......... .......... .... ....a .........................
4,19-1
4.20
Wildfire .................................................. „ ....... .,....,,. .,,..,. , ..,,...,. ,.. .....................
4.20-1
Administrative Draft I July 2020 Tabie of CovitenB
421 Mandatory Findings ofSign hlca 4�21-1
4]2 References ....... 4�2 2-1
S, 0 Inventory ofMitigation Measures-- ..... ~5-1
6.0 -Consultant Recommendation_,- ... ��__��.^--^�..............
'
TO Lead Agency Determ|naf|cn_m_,__ ............ ....... .......... ......
~_7-1
_- ^""r"n`�~r
--- _-_ °rr""eu~/~-----'--^ ''~ ---,—'-~-- ------.-- --^ ---~~ -~--~ -- ----- '-~�
Appendix A: Air Quality and Greenhouse Gas Study "
AopeMdixQ: Cultural Resources andPa|eontologyRecords Check
Appendix [: Pavement Design Memorandum -
AppendixU: Drainage impact Memorandum �
LAKEWOOD BOULEVARD AND FL RE CE INTERSECTION IMPROVEMENT PROJECT (C:IP NO,1V-07)
Initial Waylivifi(pted Negative Declaration
Figure 3-1
Regional Location Map ............ ........ ......... ...M...,.., ,., ..,. ,....,.,. ,,. ,,,,,,,.,....,, >...,m....3
Figure3-2
Project Area Map ..................... ........:.. ....... . ............ ....... ....... ................
.......
Figure 3-3
Existing Configuration ................ ...... .... „ .:,...., ...; ....,..,, , ....,..;
3-4
Figure 3-4
General Plan Land Use Map ........................................ ........a.:.,
Figure 3-5
Existing Site Photographs ... - ...... .
3
Figure 3-6
Proposed Improvements......,., V ............... .. .................. ..a.....,...
:,....., .. -
Figure3-7
Landscape Plan......... ........:..... .. ......... .. _......., .... .......:. .,,,.,.:,.,....
., ...... 3-10
Figure 4.9-1
Hazardous Waste Sites GeoTracker Radius Search ......... . .. .................... •..
•..:.......4.9-4
Figure 4.10-1
Pre -Project Drainage Facilities .a..,. r:, .•......, .......... ......... ...•.... ...=.,.r. ••. •
, ., .4.10-10
Figure 4.11-1
Partial Right -of -Way Acquisitions and Temporary Construction Easements ..
.... 411-2
Adrninistrative draft f July 2020 ai- Table of Contents
Table 3-1
Sensitive Surrounding Land Uses ............ ......... .......: ... ....: ........ ...—.... , ...........,.3-1
Table 3-2
Mix of Construction Equipment. .... ... ........ ......... ..._.........,...
_....., .........17
Table 4.3-1
Estimated Maximum [Daily Construction
4e3-4-
Table 4.3-2
Estimated Operational Emissions .................. ......... ....... : ........:
...y ..... ..,..,...... 4.3-5
Table 4.3-:3
SCAOMD LS fs for Constriction . ...... ........ .......:: ......:.e
. ,..... ........... 4.3-6
Table 4.4-1
Special Status Species List..............................................................................
.. .. ...:..... 4.4-2
Table 4.5-1
Cultural Resources Studies Within One -Half Mile of the Project Area .......
. . .......... 4.5-3
Table 4.5-2
Cultural Resources Within One -Half Mile of the Project Area... ... .
......... ... 4.5-4
Table 4.6-1
Construction Worker Gasoline Demand ................................................
........: ........... 4.6-1
Table 4.6-2
Construction Diesel Fuel Demand..........................................................
...... ........... 4.6-2
Table 4.8-1
Estimated Construction Related Greenhouse Gas Emissions ...............
4.8-3
Table 4.8-2
Estimated Annual Water Use Greenhouse Gas Emissions... ....
..... ..... .... 4,,8-3
Table 4.10-1
303(d) Listed Impaired Water Bodies .....................................................
......... ..... .e. 4.10-3
Table 4.10-2
Beneficial Use Descriptions........................................................................
.....: ........ 4.10-5
Table 4.10-3
Study Area Surface Water Body Beneficial Uses...... ...... _ .......
........ 4.10-6
Table 4,10-4
Water Quality Objectives....
.......,. m,.....,, 4.10-7
Table 4.11-1
Partial Right -of -Way Acquisitions.................................................................
......... ... ... 4.11-1
Table 4.13-1
City of Downey Noise Ordinance Standards ............................................
.......: ......... 4,13-3
Table 4.13-2
City of Downey General Plan Noise Element Acceptable Noise 'Levels
........ .......e, 4.13-3
Table 4,1.3-3
Typical Construction Equipment Noise Levels .......................................
,...__ 4.13-5
Table 4.13-4
Estimated Temporary Noise Levels..............................................................<
......... 4.13-6
Table 4.13-5
Vibration Source Levels for Construction Equipment.. ....
....... 4.13-7
Table 4,14-1
Socioeconomic Data................................................................................
....a,a :_ ....__ 4.14-1
LAKEWOOD BOULEVARD AND HORENCE MERSECT0NUNPR§VEMENT PROJECT 0PNO, l9-O7
2. Lead Agency Name and Address:
City ofDowney
Planning Department
11111Brookshire Avenue
Downey, California QO241
3. Contact Person and Phone Number:
EdNorris, Deputy Director ofPublic Works 1 (562)904-7110
4. Project Location:
The project area is located within the City ofDowney, at the intersection of Lakewood Boulevard
and Florence Avenue.
%City of Downey
Public Works Department
11111 Brookshire Avenue
Vtj
Lakewood Boulevard and Florence Avenue identified as Major Arterials.
As roadway facilities, Lakewood Boulevard and Florence Avenue do not have a designation under
the City of Downey Zoning Code. However, areas along all four quadrants of the Lakewood
Boulevard/Florence Avenue intersection are designated Commercial (C-2) by the City of Downey
Zoning Map.
The proposed project involves roadway widening, traffic signal improvements and utility
relocations to the existing Lakewood Boulevard and Florence Avenue intersection within the City
of Downey. The project area includes the Lakewood Boulevard and Florence Avenue intersection
and is within approximately 150 feet to 500 feet of all four roadway approaches. Please refer to
Section 3.0, Project Description, for a comprehensive description of the proposed project.
9. Existing and Surrounding Lend Uses
The project area is within an urbanized setting and consists of General Commercial and Office land
uses. Surrounding land uses include a mix of General Commercial, Office., Low Density Residential
and Medium Density Residential.
-10� Other public agencies whose approval is required:
;
There
hoother public 'agency approvals required.
Have California Native /'American tribes traditionally and culturally affiliates' ^
h h requested consultation pursuant -ubU�Res�urces
=.` the - _
Code section 31080.3.1? If so, is there a plan for consultation that includes,
for example, the determination of significance of impacts totribal Cultural '
resources, procedurearegarding confidentiality, efc.'y ' ^
|ncompliance with A852,the City distributed letters lnwriting via certified mail \oapplicable Native
American tribes informing them of the project on July 8, 2019. No responses were received from
any of the tribes. Given the level of previous disturbance within the project area, it is not expected
that any tribal cultural resources as defined in Public Resources Code Section 21074 would occur
within the project area, Therefore, the proposed project would not have a significant impact to a
historical resource, as defined in PR[ Section 5020,1(k). Thus, impacts to a listed or eligible
resource under the California Register of Historical Resources or a local register as defined under
Public Resources Code section 5O2O.1(@are anticipated tobeless than significant.
1.2 Environmental Factors Potentially Affected
The environmental factors checked below would be potentially affected by this project, involving at least
one impact that is a "Potentially Significant Impact" or "Less Than Significant Impact with Mitigation
lncmrporated,"asindicated bythe checklist onthe following pages.
Aesthetics
El
Agriculture and Forestry
Air Quality
Biological Resources
Cultural Resources
Energy
Geology and soils
0
Greenhouse Gas Emissions
Hazards and Hazardous Materials
Z
Hydrology and Iblater Qu@lity
Land Use and Planning
L—i
Mineral Resources
El
Noise
El
Population and Housing
Public Services
EJ
Recreation
Transportation
Tribal Cultural Resources
EJ—
Utilities and Service Systems
El
Wildfire
Z
Mandatory Findings ot Signiticance
L8K[INQODBOULEVARD AND F0RENCE|NI'ER@ECT|ON|WIPROVENIENTPK083MPNO, l9-07
Based on the analysis conducted in this Initial Study, the City of Downey Public Works Department as the
Lead Agency, has made the following determination:
| find that the proposed project COULD NOT have a significant effect onthe environment,
and a NEGATIVE DECLARATION will be prepared.
^—^
I find that although the proposed project could have a significant effect on the environment,
1h will not significant because revisions project been
there be
made oragreed 1obythe project proponent. AMITIGATED NEGATIVE DECLARATION will be
prepared.
| find that the proposed project MAY have a significant effect on the environment, and an
ENVIRONMENTAL IMPACT REPORT isrequired.
| find that the proposed project MAY have a "potentially significant impact" or "potentially
significant unless mitigated" impact on the environment, but at least one effect 1) has been
adequately analyzed in an earlier document pursuant toapplicable legal standards, and 2)
�l
��
has been addressed by mitigation measures based onthe earlier analysis asdescribed on
attached sheets. An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only
the effects that remain to be addressed.
I find that although the proposed project could have a significant effect on the environment,
because all potentially significant effects (a) have been analyzed adequately in an earlier EIR
or NEGATIVE DECLARATION pursuant to applicable standards, and (b) have been avoided or
�l
��
mitigated pursuant tothat earlier E|R or NEGATIVE DECLARATION, including revisions or
mitigation measures that are imposed upon the proposed project, nothing further is
required.
|find that the proposed project has previously been analyzed as part ofan ear|ier[EOA
document (which either mitigated the project or adopted impacts pursuant to findings)
adopted/certified pursuant to the State [E[A Guidelines and the [ounty's adopted Local
CEQA Guidelines. The proposed project is a component of the whole action analyzed in the
previously adopted/certified CE[V\document.
| find that the proposed project has previously been analyzed as part of an earlier [EQA
document (which either mitigated the project or adopted impacts pursuant to findings)
adopted/certified pursuant to State and City CEQA Guidelines. Minor additions and/or
[—l.
clarifications are needed to make the previous documentation adequate to coverthe project
which are documented in this addendum to the earlier [EOA document ([E[ASection
15264).
| find that the proposed project has previously been analyzed as part ufan ear|ierCEOA
document (which either mitigated the project or adopted impacts pursuant tmfindings)
adopted/certified pursuant toState and City CEOA Guidelines. However, there isimportant
new information and/or substantial changes have occurred requiring the preparation of an
^—~
additional [EOAdocument (ND urE|R)pursuant toCEOA Guidelines Sections lS162through
15163.
Signature Date
Printed Name
1.4 Evaluation of Environmental Impacts
This Initial Study analyzes the potential construction related and long -terra operation environmental
Impacts associated with implementation of the proposed project.
The Issue areas evaluated in this Initial
Study includes
Aesthetics
a mineral Resources
AgricultUre and Forestry Resources
a Noise
Air Quality
* Population and Housing
Biological Resources
0 Public Services
Cultural Resources
0 Recreation
Energy
Transportation
• Geology and Soils
Tribal Cultural Resources
® Greenhouse Gas Emissions
utilities and Service Systems
Hazards and Hazardous Materials
Wildfire
® Hydrology and Water Quality
Mandatory Findings of Significance
Land Use and Planning
i8KEMOOQBOULEVARD &NDF ORENCE|NlEF5rCD8M|�PR'0V8WEN(TPR083WPN0, N1
2.0 INTRODUCTION
2.1 Purpose
[E[V\requires that all state and local government agencies consider the environmental consequences of
projects over which they have discretionary authority before taking action on those projects. This Initial
Study has been prepared todisclose and evaluate short-term construction related impacts and long-term
operational impacts associated with the implementation of the Lakewood/Florence Intersection Project
(proposed project). Pursuant to Section 15367 of the State CEQA guidelines, the City of Downey is the Lead
Agency and has the principal responsibility of approving the proposed project. As the Lead Agency, the City
of Downey is required to ensure that the proposed project complies with CEQA and that the appropriate
level of CEQA documentation is prepared, Through preparation of an Initial Study as the Lead Agency, the
City of Downey would determine whether to prepare an Environmental Impact Report (E|R), Negative
Declaration (ND) or Mitigated Negative Declaration (&1MD).
If the Lead Agency finds that there is no evidence that a project activity either as proposed or as modified
to include mitigation measures identified in the Initial Study prior to its public circulation, would not cause
a significant effect on the environment, the Lead Agency may prepare a ND or MMD. Based on the
conclusions of this Initial Study, the City of Downey has recommended that the appropriate level of
environmental documentation for the proposed project is a MND. This Initial Study and Mitigated Negative
Declaration (IS/MND) addresses the direct, indirect, and cumulative environmental effects associated with
the proposed project.
2~2 Statutory Authority and Requirements
This IS/MND has been prepared in accordance with the CEQA, Public Resources Code Section 21000 et seq.
State [E[A Guidelines and City of Downey Environmental Procedures. Section 15063 of the [ECLA
Guidelines identifies global disclosure requirements for inclusion in an Initial Study. Pursuant to those
requirements, on Initial Study must include: (1) a description of the project, including the location ofthe
project; (2) an identification of the environmental setting; (3) an identification of environmental effects by
use of checklist, matrix or other method, provided that entries on a checklist orother form are briefly
explained to indicate that there is some evidence to support the entries; (4) a discussion of ways to mitigate
significant effects identified, if any; (5) an examination ofwhether the project is compatible with existing
zoning, plans, and other applicable land use controls; and (6) the name of the person or persons who
prepared or participated in the preparation ofthe Initial Study.
2,3 Consultation
When the Lead Agency (City of Downey) has determined that an Initial Study would be required for the
project, the Lead Agency is directed to consult informally with all Responsible Agencies and Trustee
Agencies that are responsible for resources affected by the project, in order to obtain the
recommendations of those agencies on the environmental documentation to be prepared for the project.
Following receipt of any written comments from those agencies, the City will consider their
recommendations when formulating the preliminary findings.
2~4 Intended Uses of this Initial Study/Mitigated Negative Declaration
This |S/K1ND is intended to be an informational document for the City of Downey as Lead Agency, the
general public, and for responsible agencies to ensure adequate mitigation measures are identified to
reduce potential significant impacts to a less than significant level. The |S/MNDwou|d be used as the
21 | ��durUnw
&dmini�mt�eDs���]u|y2O28 n
supporting [EOA environmental documentation for construction and encroachment permits, access
agreements, and related construction contracts and agreements.
2.5 Incorporation by Reference
The planning documents listed below were utilized during the preparation of this Initial Study. These
documents
planning documents that may apply to work with the project area. Background Information and policy are incorporated by reference and were utilized throughout this IS/MND as the fundamental
information, as well as specific adopted rules and regulations pertaining to the City of Downey were also
relied upon throughout this document, The documents are available for review at the City of Downey,
* City of Downey General Plan (Update 2005), The City of Downey Genecol Pion (General Plan) is the
ng-range guide for growth and development within the City. The General Plan also provides
- ^ - guidance to preserve the qualities that define the natural and built environment. The Generol Plan
is divided into nine elements, Land Use, Circulation, Housing, Conservation, Safety Noise, Open
Space, Design and Economic Development, Each element contains goals, policies, and programs
which are intended to guide land use and development decisions. The General Plan is also a tool to
help City staff, City' Commissions,— and the (City Council rmake land use and public investment
decisionsdevelopment, transnortation improvements, communitV service and facility improvements, and It identifies the economic
' envnonmenta|oroer msneededt�cus�inandi--rove+heouaU'uf]�e1n�heC�y
� programs —� � -,
"" The Codified Ordinances ofthe City of
Downey, The Codified Ordinonces of the
City qfDowney (City
`
Municipal Code), updated March 2030,consists of codes ordinances adopted bythe City.
--These includestandards intended to - regulate 1public safety, public sanitation, business,----~^�^~-~—�~~'
street and public works, building construction, land use and parks, playgrounds and recreation.
'City ofDowney Zoning Code, The �City Zoning Code (City Municipal Code, IX) isutilized 10
implement the. General Plan and Provide a guide for the growth and development of land within
the City. The City Zoning Code contains development regulations for specified zoning districts
within the City.
TECHNICAL STUDIES '
The following technical studies were prepared for the proposedproject and are available for pub||creview
concurrently with the IVIAND. The technical StUdies are attached as Appendices to the S/MND.
" Air Quality and Greenhouse Gas Study prepared by Birdseye Planning Group; December 2019,
° Cultural Resources Records Search and a Paleontology Records Check prepared by VCS
Environmental; January 2O2O.
~ Pavement Design Memorandum prepared by Diaz-Yourman & Associates; February 25, 2020�
* Drainage Impact Memorandum prepared byBKFEngineers; June 1g,2O2O�
The proposed project involves improve me nts to Lakewood Boulevard and F1 ore nce Avenue intersection to
improve traffic circulation and minimize congestion.
The project area islocated within the northeastern portion ofthe City ofDowney ([hy), inthe County of
Los Angeles; refert The project area includes Lakewood Boulevard and
Florence Avenue intersection and extends approximately 150 feet to 500 feet on the departure sides and
150 feet to 500 feet on the approach sides of Lakewood Boulevard and Florence Avenue; refer toji
2, PrgectAreo Mqg.The intersection of Lakewood Boulevard and Florence Avenue is signal -controlled
intersection with Lakewood Boulevard running north/south and Florence Avenue running east/west.
Lakewood Boulevard and Florence Avenue have a current posted speed limit of 40 miles per hour (mph) in
both directions; refer to The existing intersection of Lakewood
Boulevard/Florence Avenue is configured with the following approaches:
~ Lakewood Boulevard — Southbound: Three through lanes and one dedicated left turn lane;
� Lakewood Boulevard — Northbound: Three through lanes and one dedicated left turn lane,
° Florence Avenue — Westbound: Three through lanes, one dedicated left turn lane; and
° Florence Avenue — Eastbound: Three through lanes and one dedicated left turn lane.
The Lakewood Boulevard and Florence Avenue intersection currently accommodates an average daily
traffic (ADT) volume of approximately 72,000 vehicles per day (VPD) with existing levels of service (LOS) of
E and F during the AM and PM peak traffic periods, The traffic volume at the intersection is expected to
increase by 26 percent to approximately 91,000 yPD by year I035. The projected LOS would remain at
current levels of and Fwith increased congestion and delays for motorists.
shows that the project area issituated within anurbanized setting
along a commercial corridor within the City that is composed of General Commercial land uses and Office
land uses. Asshown the project area isarea that iscurrently built
out. The land surrounding the project area is composed of a mix of commercial land uses, These
surrounding uses include gas stations at the northeast and southeast corners and drive-thru restaurants at
the northwest and southwest corners of the intersection, There are also retail and offices adjacent to the
roadway of Lakewood Boulevard and Florence Avenue approaches and departures. Within vicinity of the
project area, there are sensitive land uses that consist of single-family and multiple -family land uses, refer
to
M. 0511111111511
Sensitive Surrounding Land Uses
Source: ESRLDctober2019.
- - - --------- -
CSfi.b
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION
IMPROVEMENT PROJECT (CIP NO. 19-07)
Initial Study/Mitigated Negative Declaration
Regional Location Map
Source: ESRI; October 2019,
LAKEWOOD BOULEVARD AND FU]REN[EINTERSECTION
IMPROVEMENT PROJECT ([|PNO. 19(]7)
Initial Study/Mitigated Negative Dedaration
ku
U,
AU
LAKEWOOD BLVD LAKEWOOD BLVD
did 444
U-
w
ir
Source: 3KF Enpineernng; UOvtr ber 2019.:..
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION
IMPROVEMENT PROJECT (CIP NO, 19-07)
Initial Study/Mitigated Negative Declaration
Existing Configuration
VCS Envira6mentaR Figure 3-3
Source: City of Downey, Community Development Department - Planning Division; October 5, 2012.
IMPROVEMENT PROJECT (CiP NO. 19-07)
General Plan Land Use Map
intersection,
6. Lakewood/Florence Intersection looking southwest,
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION
IMPROVEMENT PROJECT (CIP NO. 19-07)
Initial Study/Mitigated Negative Declaration
Existing Site Photographs
VCS Envir0milental Figure 3-5
L8KEW8OBMULES A RD APQFL0RE'KEINTERSECT 0NPQVfCT43RN(3,f9Q7
The purpose of the proposed project is to improve traffic circulation and minimize congestion along the
Lakewood Boulevard and Florence Avenue corridors by improving the operation of the Lakewood
Boulevard and Florence Avenue intersection through a series of proposed improvements; refer tof�igule
and The proposed improvements would occur
within the existing intersection and within approximately 15Ofeet tn5DOfeet onthe departure sides and
15Ufeet to SOOfeet on the approach sides of Lakewood Boulevard and Florence Avenue. The proposed
improvements would include:
• Providing dual left -turn lanes in the southbound and northbound directions along Lakewood
Boulevard.
w Providing dedicated westbound right -turn lane onFlorence Avenue.
= Removal and relocation existing utilities.
• Removal and reconstruction curb, gutters, sidewalks, curb ramps and driveways.
• Traffic 5igna| modification.
• Landscape Plan.
° Remove and replace existing median.
° Roadway widening and reconstruction ofthe intersection
° Removal and reconstruction ofexisting pavement
° Installation |fnew signing and striping.
The Lakewood Boulevard and Florence Avenue Intersection Project would involve three primary
construction phases: 1) Remove and Relocate Existing Traffic Signals and Utilities and Widening the
Roadway, 2) Removal and Reconstruction of the Median, and 3) Reconstruction of Pavement. The
construction activities and mix of construction equipment for the proposed project is shown in Table 3-2
Mix 0
Table 3-2
Mix of Construction Equipment
�� �o��0m��p�om
Ad mW����e��Ju�" 0�O
�.
'Pieces Of
IRS
InstaflNew ra rc9kna0
. Compressor, r Rm �
p 8 ,htduly rrafrressor 8 iris.
Excavate for
replacement pole,. trucks, 7-yard d+aar�a
Trucks ks 2 hrs
install signal electrical truck, Bobcat, mini `l DUrnp Truck - 2 Firs, - 1200
and loop detectors excavator Bobcat , 8 hrs.
Mini Excavator 8 hrs,
Concrete truck, Light- Concrete Truck, hrs
( Pour new pole base Concrete
r 350
duty trucks L4 ht-Dutylruck 8hrs
� Install new pole and
raiaM arm�
Boom truck 1 Boom Truck13 hrs, 200
Crane, Boorn truck, Crane 3 ears,
ALtaJc i st en-,d read traffic control Boom Truck - _, firs, 650
(changeable nae sage S1gr, 12 hm,
signs), Light -duty tracks tagh)uty 6rUck 8 hrs
RemoveFxlsting Utilithn
Crane, Boom truck, Crane 3 hrs
traffic contrd Boorn Truck 3 hrs. r;
Relocate Edison pole �,< .: � B`a(�a
(,chant eahle message xSign - 12 hrs.
slsr €ght duty ta ks gtDutyTrc_8 hrs, -. ----� _. .,-r_
_----__ __ _ m ..n I
Abandon and remove Bobcat, Backhoe, Light t Bobcat 8 hr
hand holes and vaults dutytrucks 5 hack face y hr tt
fight -Duty TrUck 8 firs.
Bobcat -8hrs.
Remove existing CB s Backhoe, 3obcnt 5 Backhoe - 8 hrs. 400
light Duty Truck 8hrs
Re
move c7ve s,tirag
Boom track Crary- � Crane 3 hrs ;harageab9r= message age r Boom Truck - 3 hrs. 65Ct
treedighl Sign 12 hrs.
,Jgn I rghi�-duty tracks
Light Duty Truck 8 hrs
Phase 2 Removal and Reconstruction of the Median
Dump �ruc:k-8h rs,
Com,are ,tar, Light dutyBokarat B Fars. �
Remove Existing trucks, 7—yard durnp b Backhoe - 8 hrs. 1500
Raised Median track, Bobcat, Mien? Light -Duty Truck 8 hrs.
excavator, B;.ackhoe Cornpresscar, 8 hrs.
Mi;^.s k:xcavat.or - 8 hr.s.
Construction of Raised Concrete truck, Light Concrete Truck - 2 hrs.
Median duty Trucks 4 Light -Duty Truck - 8 hrs. 3.5(1
. ---- _ „��.v , mx �.. . - _ .------
Phase
3 — Reconstniction of Pavement
Skip loader, Dump
Skip Loader- 8 hrs
Reconstruct Existing trucks, Vibratory Dump Trucks - 8 hrs.
Roadway and compactor, oscillating 4 Compactors - 8 hrs. 2500
Intersection compactor, Rolling Light -Duty Truck - 8 hrs.
compactor, Grader,
Light-dutytrucksGrader 8 hrs.
Asphalt delivery trucks, Asphalt Delivery Trucks - 12 hrs
Paving machine, skip Paving Machine - 12 hrs.
Roadway r' aving wid Skip Loader- 12 hrs.
loader, Rolling 6 6000
Striping compactors, Light duty Rolling Compactors- 12 hrs.
trucks, roadway stripers Light -Duty Trucks - 12 hrs
r Roadway Stripers - 12 hrs.
`d l
MODIFYING
l5tFCUR I°RETUDtA RADIU T
� u10 6363-070-
B RETURN RADIUS T046'
PARTIAL TAKE IS REQUIRED
MODIFYING CURB RETURN RADIUS TO 40' - REMOVE AND REPLACE CURB S GUTTER
REMOVE AND REPLACE CURB A GUTTER, cxww --` ° t d ` k"' SIDEWALK, DRIVEWAY AND CURB RAMPS
SIDEWALK AND CURB RAMPS`"•
I � ..,I::.. %RrNv'nF REuSMatGsvavT�¢t. W aw"°«:
$9�MiAHC.tMMN + �
kFMOYE aN6RFRM.E aEpX.n£uaoaFatacc � �- �DMCMpIP:,#wNA� � tk A,Y
Wmkr4'�+Nu P ca+rr9 rwiMiAaE � �
- LAK15 W60D BLVD
M _ * _ 1ATCEYT00D 8i V�
AT
W W roN 0 F;,44Rd'X t Y 4 � g
4
$ ns N N 6z65 002 wvc+am w .W p' p :e :a ,r w&�$ nav-a:a�o-nmrcr. `ii'
� P d t l aoxs„��ra m
~s4+aaTt9E�nsvassantssTP.t±'�.1�r�as � t a d I
WIDENING OF ROADWAY TO ACCOMMODATE _ b+a+fia+ pFgrtTiialu+,aNyi*al'@?lrYa7°r?E
DUAL LEFT TURN LANES h ! f I ''r� WIDENING OF ROADWAY ON FLORENCE AVE AND
PARTIAL TAKE IS REQUIRED Exam d Y$ ¢ axra�auw$ LAKEWOOD BLVD
MODIFYING CURB RETURN RADIUS TO 45 lael a I PARTIAL TAKE IS REQUIRED
REMOVE AND REPLACE CURB &GUTTER, ! > MODIFYING CURB RETURN RADIUS TO 45'
SIDEWALK, DRIVEWAYS AND CURB RAMPS �P .s a ' t. ga90'Op0'a45 LACE CURB &GUTTER,
- REMOVE AND REP
SIDEWALK, DRIVEWAYS AND CURB RAMPS
I LI
aLLP r !
6219-002-OdA I P I + P M f '6390-010-015
source: Bar Engineering; April 20, 2020,
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION
IMPROVEMENT PROJECT (CIP NO. 19-07)
Initial Study/Mitigated Negative Declaration
Proposed Improvements
-6
VCS Environmental f19UTe 3
� n
M
dC
1
f
N12—
s ,
i
r h
x
j
i EE
syys P
I
F I $
' F�+45Te *PE
p e t ECEND.
PROP 6ANDSCAFE
1"N'D g
e S' .@.
d hKlt�uG+`ELI £FEES.
u..
Source: BKF Engineering; April 20, 2020
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION
1(t'9FR0VCMC NTPR 1CT (CIP NO, 19-07)
Inib ui Study/Mitigated Ne gzfHw De(bration
I ands ape Plan
VIES Environmental
Rgure 3_7
LAK00UOD8OULB08DAND F0RE NCE|NTERSECDUN\MPH0VLM ENT PR0BI(C|PNO, 19-07
PHASE I — REMOVE AND RELOCATE EXISTING TRAFFIC SIGNAL, AND UTILITIES AND WIDENING THE
ROADWAY
Installation of New Traffic Signals and Removal Existing Traffic Signals
Prior to removal ofexisting trafficsignals, new trafficsignals would need to be installed. This would reduce
the time that the signals would be out -of -service when the power is transferred from the old to the new
signals. The existing traffic signals are located at each corner of the Lakewood Boulevard/Florence Avenue
intersection. The removal of the existing traffic signals would require a three- to six-foot excavation
diameter to a depth of 13 feet. The excavations for the existing traffic signals would occur within existing
fill material and would not impact native soils; however, the new traffic signals may require an excavation
up to 14fee1 in depth, which would impact native soils.
Existing Utilities
Existing utilities located along the study area segments of Lakewood Boulevard and Florence Avenue would
be removed and relocated. The existing utilities would include fire hydrants, streetlights, pull boxes, power
poles, manholes, storm drain catch basins, watervalves, electrical vault and electrical cabinets. The existing
utilities would be relocated ranging from three feet toseven feet from the current location.
Roadway Widening
Roadway widening would be performed along the northbound direction of Lakewood Boulevard and the
westbound direction of Florence Avenue. Existing curbs, gutters, sidewalk and driveways would be
removed and reconstructed in accordance with the City of Downey construction specifications. The existing
curb returns and curb ramps on all four corners would be modified which would require the removal of
sidewalks, curb and gutters and driveways. The demolished debris would be hauled from the project area.
Temporary alternative pedestrian access would be provided during construction. Roadway widening would
require partial acquisition of properties along Lakewood Boulevard and Florence Avenue. A total of 3,501
square feet of area would be acquired. The partial acquisitions would not create a non -conforming property
or adversely affect the operations of any existing businesses. Additionally, during construction
approximately 7,665 square feet of temporary construction easements would be needed.
PHASE 2—REMOVAL AND RECONSTRUCTION OFTHE MEDIAN
Remove Existing Raised Median
The existing median along Lakewood Boulevard would be removed. This would require demolishing of the
existing median and hauling ofthe debris from the project area.
Construction ofRaised Median
Anew raised median would be constructed along Lakewood Boulevard and the raised median along
Florence Avenue would besetback toallow for proper truck movement.
PHASE 3—RECONSTRUCTION OF PAVEMENT
Existing Roadway and Intersection
Once the existing utilities are relocated and the existing roadway width of Lakewood Boulevard and east
Florence Avenue have been widened, the existing asphalt concrete pavement on Lakewood Boulevard and
the existing cement concrete pavement on Florence Avenue would be removed, recompacted and repaved.
It is anticipated that approximate|y8,O0O cubic yards of material would be removed to reconstruct the
AdminisirmtiveDraft IJuly 2020 3'11 ProjectDeschpfion
roadway and intersection. Assuming seven cubic yards of material per two -axle dump truck load,
approximately 1,150 hauling trips from the project area would be required.
Once the roadway widening and reconstruction is completed, the project area segment of Lakewood
Boulevard and Florence Avenue would be paved and striped to reflect the proposed lane configurations.
3.5 Permits and Approvals
The IS/MNO is intended to provide environmental review for full implementation of the project, including
all discretionary actions -and ministerialpermits associated with it. The City of Downey is the Lead Agency
with approval authority over the project. Below is listing of permits and approvals required for the project.
CITY APPROVALSPERMITS
* Adoption of a Final Mitigated Negative Declaration
* Partial Right -of -lay Acquisition Agreements
* Temporary Construction Easements
1,\KEA,V08DDOULDP`IRB8N&FL8RENCE/NT[RSECT00|�"PRO yB01�14 IPR') �[Oi iPN`,1g- C7)
The following is a discussion of potential project impacts asidentified in the Initial Study/Environmental
Checklist, Explanations are provided within each corresponding impact category in this analysis.
4.1 Aesthetics
ENVIRONMENTAL ANALYSIS
a) Have asubstantial adverse effect onascenic vista?
NoImpact: For purposes ufdetermining significance under [E[\A ascenic vista isdefined asaviewpoint
that provides expansive views of a highlyvalued landscape forthe benefit of the general public. In addition,
some scenic vistas are officially designated by public agencies, or informally designated bytourist guides.
The City of Dovvney's General Plan lists no scenic vistas within the project area. Therefore, no impacts to
scenic vistas would occur.
b) Substantially damage scenic resources, including, but not limited to, trees, rock
outcroppings, and historic buildings within a state scenic highway?
No Impact: The State Scenic Highway Program was established to preserve and protect scenic highway
nignwaTT 777.9C Id LC
travelers, the scenic quality of the landscape, and the extent to which development intrudes upon the
when a local jurisdiction adopts a scenic corridor protection program. According to the California
-- Apmh,dm
ofthe project area, Therefore, no potential adverse impacts to scenic resources within the viewshed of a
State Scenic Highway would occur,
Mitigation Measures: No n1itigat|on measures are required,
c) In non -urbanized
substantially
or
' public ' - ' ' -- - -
from publicly accessible vantage point). If the project is in an urbanized area, would the
project conflict with applicable
and other
ulations
scenic
- views of the site and its surroundings? (Public views are those that are experienced
~-
Less Than _
and regulations that would be most relevant to the proposed project would be the City of Downey General
Plan
--Design Element. The Design'Element established policies that focus on eff orts to enhance streetscapes^
� within the City, These would include:
° Promote landscaping along streets, either inthe form ofmedians inthe middle of roadways or
major arterials, or planter strips along the sides of streets, or planter islands at intersections.
= Modify existing paved islands and medians to replace pavement with landscape planting.
• Install street trees, consistent with the adopted street tree master plan,
° .Place overhead utilities underground.
° Provide stamped concrete orother forms ofenhanced �paving for streets and intersections,
The proposed project would not conflict with the ' Design �
��~ _ --- �
of the project area by reconstructing and expanding landscape medians,
'un^e' roundi � of overhead
utilities, and rehabilitating existing parkways and roadways, The proposed improvements would enhance �
the existing aesthetic During ^construction, the existing aesthetic environment within the
project area would bereplaced with construction activity. Since the construction activities would only occur �
for a short period of time and existing streetscape would be enhanced after construction, the short-term �
construction aesthetic impacts occurring within the project area would be |essthan significant,
Mitigation Measures: Nomitigation measures are required.
'd) Create new sourceof substantial Hght or glare which would adversely affect day or
lnighttime views in the area? -
� �ep�� a�a iasi��d ���[���� �n� �d ���o�� �|a��of
light and glare impacts from vehicle traffic, land uses and street lighting. Implementation of the proposed �
project would not create a substantial new source oflight and glare impacts within the project area.
4.2 Agricultural and Forestry Resources
ENVIRONMENTAL ANALYSIS
m) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance
(Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and
Monitoring Program ofthe California Resources Agency, to non-agricultural use?
No Impact. The State of California Farmland Mapping and Monitoring Program indicates that there is no
Prime Farmland, Unique Farmland or Farmland of Statewide Importance within the project area
Additionally, the [ity'sGenera| Plan Land Use Element does not identify any agricultural lands within the
City boundaries, Therefore, the construction and operation of the proposed project would not result in
adverse impacts to Prime Farmland, Unique Farmland or Farmland of Statewide Importance.
Mitigation Measures: No mitigation measures are required,
k) Conflict with existing zoning for agricultural use, or a Williamson Act contract?
No Impact: According to the City of Downey Zoning Code, the project area is not zoned for agriculture land
uses. Therefore, the proposed project would not conflict with any lands zoned for agriculture uses.
Additionally, the project arLa is not under a Williamson ConluacL
Mitigation Measures: No mitigation measures are required,
c) Conflict with existing zoning for, or cause rezoning of, forest land (as defined in Public
Resources Code section 12220(g)), timberland (as defined by Public Resources Code section
4526), ortirriberland zoned Timberland Production (as defined by Government Code section
No Impact: The proposed project would not cause a rezone of lands that are zoned for forest land or
timberland.
K8 Nomitigation measures are required, _
d) Result in the loss of forest land orconversion mf forest land to non'forestuse?
NoImpact: The pro �ctoreadoes not contain
1
forest
and resourues.Therefon�irnpkemen+='mnofthe
proposed pn��twou|dnot result inthe loss offorest land orconversion offorest land tonon-forest uses.
Mitigation Measures: No mitigation measures are required.
'
�
could result hmconversion of non-agricultural use orconversion offorest land �
tqnon-forest use? '
No Impact: The project area and surrounding properties do not contain farmland or timberland, The '
construction and operation of the proposed project would be confined to the project areas and would not
cause any onsite or offsite conversion of farmland or forest land to non -agriculture uses or non -forest uses.
Mitigation Measures: Nomitigation measures are required. �
L A V'U'V001) 11330U L [V ARD A t,,, r, 14CE I �rE ijS E0101, NP1 71 PR0E[T0P1907)
|mba|\mdy/�Uga\�N�m|veD�|aaUon
4.3 Air Quality
ENVIRONMENTAL ANALYSIS
The following analysis is based on an Air Quality and Greenhouse Gas Study prepared by Birdseye Planning
Group in December 2019. The report is presented in its entirety in Appendix A.
Setting
The project area is within the South Coast Air Basin (SoCAB). The SoCAB includes the non -desert portions
ofLos Angeles, Orange County, San Bernardino, and Riverside Counties.
Regulatory Framework
Air pollutants are regulated at the national, state and air basin level. Each agency has a different level of
regulatory responsibility. The United States Environmental Protection Agency (EPA) regulates at the
national level, The California Air Resources Board (ARB) regulates at the state level by the preparation of
the State Implementation Plan and the South Coast Air Quality Management District (SCAQMD) regulates
atthe air basin level byimplementation ofthe Air Quality Management Plan.
Federal Regulation
The EPA handles global, international, national, and interstate air pollution issues and policies. The EPA sets
national vehicle and stationary source emission standards, oversees approval of all State Implementation
Plans, conducts research, and provides guidance in air pollution programs and sets National Ambient Air
Quality Standards (NAAQS), also known as federal standards. There are six common air pollutants, called
criteria air pollutants, which were identified resulting from provisions of the Clean Air Act of 1970. The six
criteria pollutants are Ozone, Particulate Matter (PMmand PKX2,5), Nitrogen Dioxide, Carbon Monoxide,
Lead and Sulfur Dioxide. The NAAQS were set to protect public health, includingthat of sensitive individuals.
State Regulation
AState Implementation Plan (SIP) is a document prepared by each state describing air quality conditions
and measures that would befollowed toattain and maintain NAAOS.The SIP for the State ofCalifornia is
administered by the ARB, which has overall responsibility for statewide air quality maintenance and air �
pollution prevention. The ARD also administers California Ambient Air Quality Standards [AAQS),ƒorthe �
ten a| +a gnated in the CaliforniaClean 4 Act r ^ ^ ;
ten state air pollutants include the
six national criteria pollutants and visibility reducing particulates, hydrogen sulfide, sulfates, and vinyl
South Coast Air Quality Management District
The project area is within the South Coast Air B"="'(°"="'),Air qua `vconditions ". the """". are under thejurisdiction of the South Coast Air Quality Management District ,
The SCAQMD is
uired to
-~
-- -~-- ~'monitorair pollutant"
strategies to meet the standards, Depending on whether the standards are met or exceeded, the local air
hasin I--, classified as being in "attainment" or "non -attainment." T he ulasin, in which the project area Is
located, is a norratoammentarea for both the federal and state standards for ozone and pxx2 5'|ne1Basm ^
is in attainment for the state and federal standards for PM1o, nitrogen dioxide, and carbon monoxide,
S[AQAIDisdirectly responsible for reducing emissions from stationary, mobile, and Indirect sources, It
responded to this requirement by preparing a sequence of Air Quality Management Plans (AQMPs). Under
state law, the \[AQMOisrequired Loprepare a plan for air quality improvement for pollutants for which
the District is in non-comF8iance. The SCAQMD updates the plan every three years. Each iteration of the
�(-4nmD's Air nia!ity NAanoQemeMt P|an (4OKAP) is an updote of the previous nlm nd'has a 20- ar
horizon. 6[ALlkDDadopted the 2O164[lMP1n March '7O17,The rZO1GACiK4Pincorporates new scientific
'
data and notable regulatory actions that have Occurred since adoption of the 20124QK8P�
19-ocalk Jurisdictions
�Ldca|ijurisdictions, such asthe' bf&zwney havetheautMorityandresponsibility toreduce air pollution '
- through Its police power and decision -making authority. Specifically, the Cities are responsible for the
assessment and mitigation of air emissions resulting from its land use decisions. The Cities are also '
responsib|efortheimp|ementationoftranspodaUoncontno|measuresasoutlined inthe Z0I6AnKAP.'In
accordance with the [EQArequirements, the Cities donot, however, have the expertise todevelop plans,
�-ProQran?s' procedures, and methodologies to ensure that air quality within the Cities and region would
meel federal arid sLate standards. Instead, the Cities rely on the expertise of the SCAQMD and utilize the
S[AQMD [E[A Handbook as the guidance document for the environmental review of plans and
deve|opmentproposals within its jurisdiction.
PROJECT IMPACTS
a) Conflict with orobstruct implementation of the applicable air quality plan?
Less Than Significant Impact: The following analysis evaluates construction and operational regional air
quality impacts associated with the proposed project and consistency with the S[AQIVIDAJr Quality
Management Plan.
REGIONAL CONSTRUCTION RELATED AIR QUALITY IMPACTS
The construction activities for the proposed project would generate temporary air pollutant emissions.
These impacts would beassociated with fugitive dust (PM,oand PMzs) and exhaust emissions from heavy
construction vehicles, work crew vehicle trips in addition to ROG (reactive organic gas) that would be
released during the drying phase upon application of paint and other architectural coatings, For the
proposed project, construction would generally consist of demolition and removal of the existing asphalt
LAKEWOOD BOULEVARD AND R0RENCEINTERSECTION IMPROVEMENT PROJECT 11GPNO, l9-07)
The SCAQMD has developed specific quantitative thresholds that apply to projects within the SCAB. The
following significance thresholds apply to short-term construction activities:
9 75 pounds per day of ROG
0 100 pounds per day of NOx
0 550 pounds per day of CO
0 150 pounds per day of SOx
0 150 pounds per day of PM,o
0 55 pounds per day of PM2,5
Project construction would generate temporary air pollutant emissions. These impacts are associated with
fugitive dust (PM10 and PM2.5) and exhaust emissions from heavy construction vehicles and work crew
vehicle trips. Additionally, ROG would be released during the drying phase upon application of paint and
other architectural coatings. It is anticipated that approximately 8,000 cubic yards of material would be
dump truck load, approximately 1,150 hauling trips from the project area would be required.
The proposed project would berequired tocomply with SLAQMDRule 4D3,which identifies measures to
reduce fugitive dust and is required to be implemented at all construction sites located within the South
Coast Air Basin. Therefore, the following conditions, which are required to reduce fugitive dust in
compliance with SCAQMD Rule 403, were included in CaIEEMod forsite preparation and grading phases of
construction.
° Minimization ufDisturbance. Construction contractors shou|dminimizetheareadisturbed
by clearing, grading, earth moving, or excavation operations to prevent excessive amounts
of dust.
exposed soil areas, and active portions of the construction site, including unpaved onsite
roadways to minimize fugitive dust. Treatment shall include, but not necessarily be limited
to, periodic watering, application of environmentally safe soil stabilization materials,
and/or roll compaction as appropriate. Watering shall be done as often as necessary, and
at least twice daily, preferably in the late morning and after work is done for the day.
Soil Stabilization. Construction contractors should monitor all graded and/or excavated
methods, such as water and roll compaction, and environmentally safe dust control
materials, shall be applied to portions of the construction site that are inactive for over
four days. If no further grading or excavation operations are planned for the area, the area
environmentally safe dust suppressants, to prevent excessive fugitive dust.
No Grading During High Winds. Construction contractors should stop all clearing, grading,
carth moving, and excavation operations during periods of high winds (20 miles per hour
or greater, as measured continuously over a one -hour period).
° Street Sweeping. Construction contractors shouldsweep all onsite driveways and adjacent
streets and roads at least once per day, preferably at the end of the day, if visible soil
Construction emissions rnade(iig fordcciltinn site prepan3tion, grading, street
t•€it construction, paving, arid
architectural coating application is based on tire ovaerafl scope of the proposed project and construction
phasing which is expected 8o begin in March 2021 and extend through the year, The total area disturbed
would be the existing street corridors frori the intersection outward 150 feet to 500 feet ire a dditior� to
approximately 2;050 sgcaare feet of Partial make right -cif -way and apprc-ximateiy 7,200 square feet of
femporaryConstructrc n AFea. For modeling purposes, it was rsasuried the maximurn area distcarbed daily
is one acreandthe site would be watered twice daily for dr..ist control. In additaecn to SCACIMD Kula 40
reguiiements, emissions rnodeeling also accounts for the Use of love-` OCw paint j100 g/f_ for traffic coatings
dare strppingj`, as required hy'C"teQN4D RLde 1.113, It is assurned for thee;purpose of this analysis that
emissions would ice worst case, Iable ,.y...f1 5sfpfiut c.hyfo aqr ,fJr" f t fCotroff fr rs rta s,ucrimanzes
the es,>tir"nated maximurn daily ekrr ssioos of pollutants O crarring during 2020.
g able 3-
gstir°kited Maxirnum Daily Construction Ernissi s
sa 66
Et
m
Site Preparation 1,8 231 3.4 130,85
Paving gezr 93 C3 01 � Ct sa Ct.4S
Striping/PaintingC 1t i gs 1 4 Ct Qt � 0.11
g Ci 1
SCAT Regional Thresholds Tu trrtt 50 � 750
w
tPsrtri Exceeded bra bra Ica ( No e v _ ._
dcsurcu Birdseye Pian nrng Group, kr e.dUO itY and Greenhouse Gos Star D cernber 2019.
As shorn in Table 4 S ronstra.rction of the proposed project Would riot exceed the SC.AC1MD regional
thresholds. With compliance with SCAQMD Rule 403 and Rule 1 ,13F no mitigation would be required to
reduce construction ernissionst to less than slignificant,
REGIONAL OPFR,ATlONAl_ AIR QU,4t l lY IMPACT T 5
The following significance thresholds would amply to long-term operational erriis ions associated with the
Proposed project:
0 55 pounds per day of ROG
SS pounds per day of NO
a . 550 pounds per daffy of CO
t 150 pour ids per day of SCfx
150 pounds per day of PMio
- 55 pounds per day of PMz r
Operational emissions would consist of area and mobile sources associated with rnainte nanc:ee amid
landscaping, J apip, rj tirnated Qegreftfrgrri fajhssp aaysi srammar;zes _ernissmns associated with
operation of the proposed project. As referenced,, the project: would riot generate additional vehicles trips
or other stationary source eriissions. As shown in rabl g d operational emissions would be negligible
acid would riot exceed the SCAQMD thresholds for ROG, allay, CO, Sox, F' it or R x.s. Therefore, the
proposed project''s regional air quality impacts (including 'impacts related to criteria pollutants, sensitive
receptors and violations of air quality standards) would be less than significant Additionally, the proposed
project would not contribute to a ceirnulativaely considerable net increase of any criteria pollutant for which
the region is non-attalrirnent. As, discussed, the South Coast Asir Basin is a nonattainrnent area for rezone
and PK4m. Emissions of ozone precursor emissions (i.e., RDG and NDx) and PIVln,wmu|d not exceed the
S[AQMDthresholds. Long-term operational air quality impacts would beless than significant. Nomitigation
is required.
Table 4.3-2
Estimated Operational Emissions
AIR QUALITY MANAGEMENT PLAN
A project may be inconsistent with the AQMP ifbwould generate population, housing, or employment
growth exceeding forecasts used in the development ofthe AOMP. The 2016AQMP, the most recent
A(IIVP adopted by the S[AQMD, incorporates local city General Plans and the Southern California
Association of Government's (S[AG) Regional Transportation Plan socioeconomic forecast projections of
regional population, housing, and employment growth. The proposed project involves the construction of
street improvements and related infrastructure improvements and would not create additional housing or
long-term employment opportunities beyond what is projected in the City's General Plan. Project -related
emissions would not exceed thresholds recommended by the SCA[lK8D. Therefore, the proposed project
would be consistent with the AQIVIP and would not cause an adverse impact.
Mitigation Measures: Nomitigation measures are required.
b) Result in a cumulatively considerable net increase of any criteria pollutant for which the
project region is non -attainment under an applicable federal or state ambient air quality
standard?
Less Than Significant Impact: The region is a Federal and/or State nona11ainment area for PKXo^ PK42,5,
and 03, The proposed project would contribute particulates and the 03 precursors VOC and NOxto the area
during short-term construction and long-term operations. The SCA[lK4D considers the thresholds for
project -specific impacts and cumulative impacts to be the same. As described above, construction and
operational regional emissions would be less than Lhe3CAQMD [EQAsigniMcance thresholds and would
be less than significant. Therefore, regional emissions would not be cumulatively considerable, and the
impact would bcless than significant.
Mitigation Measures: Nomitigation measures are required.
c) Expose sensitive receptors to substantial pollutant concentrations?
Less Than Significant Impact: Sensitive receptors include, but are not limited to, hospitals, schools,
daycare facilities, elderly housing, and convalescent facilities. These are areas where the occupants are
more susc:eptihale to the adverse effects of, exposure to air POHLrtants, Ambient air quality standards have
been established to represent the levels of. air duality considered suffident, with an adepuaat:ee margin of
safety, to prolect public: health and welfare as well as that segment of the public rraOSt ;ra ice tibie to
resplratorydistrisss, srachr as children under 1.4; the elderly over 65; persons engaged in strenuOUS work or
exercise; and people with cardiovascular and chronic respiratory diseases: The closest properties defined
her('m as sensitive receptors are the single4alrnilly and rl"iultl-family residences located 400-t,OO feet frorCi
the center of the intersection,
l_OfAUZEDAlRQUALITY iMPA 1S
11
_oca is ed Si n ficance T hresholds (LSTs( were; devised in response to concern regarding din exposure of
irldltrrdracls to criteria pcaClr@tcnts in local comi� u,nities, I ST:s represent the maximurn n emissions frorn a
orojiect thlat wM net r_ara e or contribute to 3n air quality exc tee'ifrance of Lhe .rriost stringent applicable
federal or state arnblen't: air quality Standard at the nearest sensitive receptor, tiking into consideration
arnbient concentrations it each serrrce receptor area (RA), project 'size and distance to the sensitive
receptor, However, L -s;s enlyapply^to ernissions within a fixed stationary location, including idling emissions
during both pro, ee t constr, action arid o era Hon, L.S T s have been developed for `° O , CO, Plf..dro and Plv"ia,e
L.STs have been developed i'or erni ssbr)5 within Dreas tap to five acres in size, with air Emil ttant modeling
rmecernmended for activity within larger areeas. The SE:,d .MD provides lookup tables for project sites that
rne'aisure one, two, or five acres, its referenced, a total of one sere r assurned to be disturbed daily during
construction of the proposed itroject; thus, look up table vaa9ue=s for one acre were rased to evaluate
potential imparts: The project area is located in Source Receptor Ares-r 5 (S A -Ea, Sratatheastern Los Angeles
C:ounLy). I_STs for construction related emissions in the SR4--5 at varying distances between the source and
receiving property are shown in,Table ..a:f.. CCu �rrit�rr y,5t €er>Constructiop.;..:
Tale .3-3
SCAQM D,LSTs for Construction
-the nearest sensitive receptors to the project. area are located a apprroxirnaately 400-5® 00 fceeet from the center
of the intersection. To provide a conservative evaluations of construction emissions relative to t_ST
thresholds, allowable emissions for 100 Meters were used. As shown iM Table 4 a- , daily e nissic�srss c>f NL ,t,
CO, rINAjo and f'iM25 would riot: exceed the LS1-s for 1.00 rrieters 1herefore, project -related construction
irrrnpacts would be less then significant,
v CsNSTRIJaTION--RIL- -1 ED TOXIC AIR CONTAMINANT IMPAC FS
The greatest potential for toxic air contarninasnt ernissions would be related Lea diesel particulate emissions
associated with heavy equipment operations during construction of the proposed projecL, According to
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION IMPROVEMENT PROJECT (CIP NO, 19-()7'1
........ ...
SCAO,MD methodology, health effects from carcinogenic air toxics are usually described in terms of
"individual cancer risk". The California Office of Environmental Health Hazard Assessment (OEHHA) health
risk guidance states that a residential receptor should be evaluated based on a 30-year exposure period.
iven e short-term construction scneciuie, ine X"insi-I 01111-Mm-11
or 70 year) exposure to a substantial source of toxic air contaminant emissions; and thus, would not be
exposed to the related individual cancer risk. Therefore, no significant short-term toxic air contaminant
impacts would occur during construction of the proposed project.
d) Result in other emissions (such as those leading to odors adversely affecting a substantial
number of people?
Less Than Signcant Impact: The construction activities for the proposed project would generate air
pollutants due to the combustion of diesel fuel and asphalting activities during construction. Some
orative emissions are objectionable, alth:)ue,h there
Im FA ".- 0 111%�28W!y i . . , ON
the air district. These emissions would be short-term and not confined to one specific location and would
less than significant.
TOP
Adin inistrative Dry ft I July 2020 437 Air Quaiity
This yageintentionally left blank,
1, A KCAV00i) B0E1[,EVAPT AND F I, ORE 14CE JJ�JEi?,!)E ("I'! ffll Mr, Ea?_ ?i
Y,121,1- (I"
4.4
Biological Resources
Less Than
Potentially Significant Less Than
No
Would the project:
Significant' 'Impact With Significant
Impact
Impact Mitigation Impact
Incorporated
a.
Have a substantial adverse effect, either directly or
through habitat modifications, on any species
identified as a candidate, sensitive, or special status
El 1:1 El
species in local or regional plans, policies, or
regulations, or by the California Department of Fish
and Game or U.S. Fish and Wildlife Service?
b.
Have a substantial adverse effect on any riparian
habitat or other sensitive natural community
identified in local or regional plans, policies,
0 El
regulations or by the California Department of Fish
and Game or U.S. Fish and Wildlife Service?
c.
Have a substantial adverse effect on state or federally
protected wetlands (including, but not limited to,
marsh, vernal pool, coastal, etc.) through direct
El E] El
removal, filling, hydrological interruption, or other
means?
d .
interfere substantially with the movement of any
native resident or migratory fish or wildlife species or
with established native resident or migratory wildlife
El El
corridors, or impede the use of native wildlife nursery
sites?
e .
Conflict with any local policies or ordinances
protecting biological resources, such as a tree
11
El El El
preservation policy or ordinance?
f.
Conflict with the provisions of an adopted Habitat
Conservation Plan, Natural Community Conservation
El El F1
Plan, or other approved local, regional, or state
habitat conservation plan?
a) Have a substantial adverse effect, either directly or through habitat modcations, on any
species identified as a candidate, sensitive, or special status species in local or regional plans,
policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and
Wildlife Service?
OMNI Me.
a-UTIM Vr,11t74=*-T
#-7m-6 d5u)"M
to occur within the USGS quadrangle area where the proposed project would be constructed. A coLmplje-
Quadrangle area is shown in Table 4,4-1, As shown in jAhLe� the proje
'a i G c SC E�, t""'s c 13 e,�,
C � Ff "' I � I i Sit H,", V
area does riot have suitable habitat to .spef: l status trlarrt or wildlife species that have the potential to
occur within the Whittier Quadrangle, Ihere would be the potenUal teal Accipitiercooperii (Conpor's hawk)
and t.rsurus cca`ift rnicu.s (California ud) coii,ild be observed in the slays above the protect area=a. However, it
would be highly unlikely they vvOUN forage or rust within the Projectareaa aarld More than likely WOUld avoid
the area during construction aacti itles, tlrafalera° entastion of the proposed project would Not result in direct
or, indirect impacts to sensitive plant or w ldlife or alter the existing habitat. -Therefore, ira lerrlentstion of
thine project would not, result in significant: impact to zany sensitive plant and wildlife species or their haUtdt.
Mitigation Measures: No rnitedttiorr measures are regUired.
T el -1.
Special Status Species leis
.. t .'.t:.iil
fi
tlM.l
Nantts
(, x5ihe iu gluhrcCcr ssp,
None Nismu I B 1
Cr+c lter`s goldfields are asscrc aced ra it"a
Lava
cou,ser'i
low-lying alkaak habitats, aleang the coast
Site hacks
F �(Coulter's goldfields)
and in inland wDeys. Most of the
suitable habitat:
populations are associated wlih coastal
� � ... .a
'
salt near sh
Symphyctochurr
None, ....allon;r 112
m This plant ,s a pereriniaal herb that grOWS
LOW I
rLt°`eaflraturrr
..
=arras, s a-i
near ditches,stra,„. springs,
lacks
Site �atlKs q
(CLn Bernardino cuter)
cl montane woodland, C0@ tal SM-Ub,
suitable habitat
Mower montane, coniferous f sfrp. t,
rricadows and seeps, €narshes end
swamps, vaHey and lrrcvthfH grassland
(vei naaly nresic).
- Atrip,lex psurishii
Neriae 'N"n I.R>L
Annual herb riarJveto California and aas.
Low
(Parish's brlt'tle's le)
California, Hab[tat includes alkeAnc soils,
Site lacks
chencapod,scrub, playas, rind vernal pools,
swtnble habatat
Threatened laydevOopmen , agrlcuitWal
conversion, and grazing,
a1y t rafetrx
None None IRA
Meadnwsand sepp,;(scarraeti mes
aery
(Iucky raring --glory)
aikahne), Riparian scrub )alluvial).
Site lacks
i
r
e, trbl haablt,it
Dudley rnult" o 1hS
atoll' Slone a Rr 2
Many --stemmed dudicyo, is often
_L ciS
(many -stemmed dUdleyzi)
associated with clay sraiis in barrens,
Site laeki; I
rocky places, and ridgeines as well as
suitable habitat I
tuin(ya vegetated ispemngs in chaparral,
e' coastal s'sige sciub, and southern
_
needleprass grasslands cin clay soils,
J in"{r: iiJ nt.7iti)P t?dn€S _,_....
lNone...u_ .,
None k.T
'..
Perennialdeciduisu¢ streef:ndemicto
row
(50utiaern California Uaacck
C:ahfornizi, Habitat irtcicrdes alluvial
Site backs
walnut)
substrates, chaparral, cismon.zane
suitable habitat
woodland, cicaastal scrub, and riparian
ww..
wisisdiand.
Ccuischortus plurnmerrae
None, None 4,2
Pere.nnaaP bu?bsferous herb endemic to
Row
(Plurrrmer's rnaariposa-lily)
California. Hab;t_a"t inc Nudes granitic, rocky
Site lac <s
soils, chaparral, cismonta ne woodland,
suitabic, caabitat
cotrival scrub, linwer montane coniferraus
forest., anti valley and foothill graaslannd
Caloc .,anus w eo`r; aar,
Nonc None _1C,2
Rocky hill and valley landsczaues with
OW
8 iterm di s
rhalcaP a l sage sc uls or grasslands.
Site. lacks
rat€er me di ate rya ar isc a lily')
suitable habitat
Oil
� i ` -
r( A"
.
Orcuttia californica
E E 113.1
All known California Orcutt grass
Low
(California Orcutt grass)
localities are associated with vernal
Site lacks
pools.
suitable habitat
Navarretia prostrate
None None 113.2
Found in sandy soil, often in association
Low
(prostrate vernal pool
with sandy barrens and sandy openings in
Site lacks
navarretia)
chamise chaparral, coastal sage scrub,
suitable habitat
and occasionally grasslands.
Amphibians
Spea hdmmondk
None SSC None
Prefers open areas with sandy or gravelly
Low
(western spadefoot)
soils, in a variety of habitats including
Site lacks
mixed woodlands, grasslands, coastal
suitable habitat
sage scrub, chaparral, sandy washes,
lowlands, river floodplains, alluvial fans,
playas, alkali flats, foothills, and
mountains.
Birds
Accipitercooperii
None WL None
Forest and woodland birds. A regular
Moderate
(Cooper's hawk)
sight in parks, quiet neighborhoods, over
fields, at backyard feeders, and even
along busy streets if there are trees
around.
Accipiterstriatus
None WL None
Forest and woodland,
Low
(sharp -shinned hawk)
Site lacks
suitable habitat
Circus hudsonius
None SSC None
Wide-open habitats ranging from Arctic
Low
(northern harrier)
tundra to prairie grasslands to fields and
Site lacks
marshes. Their nests are concealed on
suitable habitat
the ground in grasses or wetland
vegetation.
Erenophila alpestris actia
None WL None
The California horned lark is a common to
Low
(California horned lark)
abundant resident in a variety of open
Site lacks
habitats, usually where trees and large
suitable habitat
shrubs are absent. In the Midwest, the
species has been characterized as the
most abundant species in row -crop fields.
Range -wide, California horned larks
breed in level or gently sloping shortgrass
prairie, montane meadows, "bald" hills,
open coastal plains, fallow grain fields,
and alkali flats.
Chaetura vauxi
None SSC None
Old growth coniferous or deciduous
Low
(Vaux's swift)
forests consisting of coniferous and
Site lacks
deciduous vegetation; requires large,
suitable habitat
hollow trees for nesting.
Cardinalis
None WL None
Backyards, parks, woodlots, and shrubby
Low
(northern cardinal)
forest edges. Northern cardinals nest in
Outside of
dense tangles of shrubs and vines.
normal range
however a few
individuals have
been recorded
in the area
Coccy7us omericonus T E None Woodlands,thickets,orchard � Love �
occreieratofis strc°arnslde groves. Breeds mostly n Site lack's
(western yellow! billed dense assiduous stand's, including fos est � suitable habitat
cuckoo) edges, tall thickets, c,cnse ec:ond aicawti.r
avergrown n orchards scr ibby oak woods
J; Often iri"willmvgroves around marsh s
frocyr,e utars Ns3ne ;CC None Open areas, especially sally near w ate , in the Low
(purple !martin) East, they nest almost exclusively irr nest Site lacks
boxes and rnartirihou es; in the West suitabiehabitat
you will find the ri rar_>ting ir: natural
ra ��tie r
(
Fiparks None Nmic Four-d prirearily° in riparian and rather � Low
(bank swallow) lowland hsoitists"in California west of the Site lacks
deserts during the spring -fail pcyiod. In suitable habitat
summer, restricted to riparian, lacustrine,
and coastal areas with vertical hanks,
bluffs, and cliffs with fine -textured or
sandy -'soils
_--m�
s tcteric, vrr°ens None SSC None Dense, relatively ti°°ado r°epd`rao r woodlands Low
(yellow -breasted chat) and thickets of willows, virie tangles, and � Site lacks
dense brush with well --developed suitable habitat
understories, Nesting areas are
associated with streanss, sw rrrafryground �
.. and the borders of small ponds,
Lotus caHfornicus None WL Neese They forage in any open area where they Moderate j
(California gull) can find flood including_garbagedumps,
scrublands, pastures, orchards,
meadows, and farms. In the winter, they
forage along the Pacific Coast and use
( mostly marine areas including mudflats,
estuaries, deltas, and beaches.
..eta hisgo etechia — , None SSC: None Found in thickets and
f k a p° and ratherdisturbcri car.. Low
(yellow wirbler) ref„rwvring habitats, l articularly along Site lacks
s rewarrms and wed arrds. Nests in the suitable habitat
vertical fork of a hush orsmall tree such
( 1 a willow MMM --.. ......�f. m mm
Aimophila ruficeps Noire tars Nonr, This species is found on moderate to Low
canescens steep, dry, grass -covered hillsides, coastal Site lacks
(southern California rufous sage scrub, and chaparral and often suitable habitat
crowned sparrow) occur near the edges of the denser scrub
and chaparral associations. Preference is
shown for tracts of California sagebrush.
Phalacrocorax ouritus None WL None They are frequently seen in freshwater. Low
(double -crested cormorant) They breed on the coast as well as on Site lacks
large inland lakes. They form colonies of suitable habitat
stick nests built high in trees on islands or
in patches of flooded timber.
Polroptila californica T SSC None Obligate, permanent resident of coastal Low
(coastal California sage scrub below 835 meters in Southern Site lacks
gnatcatcher) California Low, coastal sage scrub in and suitable habitat
washes, on mesas and slopes.
#d'
Athene cunicularia
None SSC None
Open, dry annual or perennial grasslands,
None
(burrowing owl)
deserts and scrublands characterized by
Site lacks
low -growing vegetation. Subterranean
suitable habitat
nester, dependent upon burrowing
mammals, most notably, the California
ground squirrel.
Contopus cooperi
None SSC None
Northern and montane coniferous forest.
Low
(olive -sided flycatcher)
Seen typically in elevations 3,000-7,000
Outside of
feet.
normal
elevation range
and the site
lacks suitable
habitat
Pyrocephalus rubinus
None SSC None
Riparian areas and scrub in the
Low
(vermilion flycatcher)
southwestern United States.
Site lacks
suitable habitat
Vireo befGi pusillus
E E None
Summer resident of Southern California
Low
(least Bell's vireo)
in low riparian, in vicinity of water or in
Site lacks
dry river bottoms; below 2000 feet. Nests
suitable habitat
placed along margins of bushes or on
twigs projecting into pathways, usually
willow, baccharis, or mesquite.,.
Fish
Catostomus sontaanae
T None None
Small to medium sized streams that flow
None
(Santa Ana sucker)
year-round. Depth from several
Site lacks
centimeters to over one meter deep.
suitable habitat
Favor cool (s22°C) water and gravel,
rubble, and boulder substrates.
Gila orcuttii
None SSC None
Cool to warm (10-24°C) streams, most
None
(arroyo chub)
common in slow flowing or backwater
Site lacks
areas with sand or mud substrate.
suitable habitat
Rhinichthys osculus ssp. 3
None SSC None
Predominantly occupy small streams of
None
(Santa Ana speckled dace)
the second or third order. Prefer clear,
Site lacks
oxygenated water with deep cover or
suitable habitat
overhead protection from vegetation or
woody debris.
Insects
Bombus crotchii
None CE None
Shrubland and grasslands,
Low
(Crotch bumble bee)
Site lacks
suitable habitat
Mammals
Eumops perotis californicus
None SSC None
Open, semi -arid to and habitats,
Low
(western mastiff bat)
including conifer and deciduous
Site lacks
woodlands, coastal scrub, annual and
suitable habitat
perennial grasslands, palm oases,
chaparral, desert scrub, and urban„
Microtus californicus
None SSC None
Grasslands.
Low
stephensi
Site lacks
(south coast marsh vole)
suitable habitat
Namtonto ir-r d a iratermedia None
SSC None
Abundant in rock outcrops and rocky
done E
(Sari Diego desert 1n.00drat)
�
Cdiffe and shapes with moderate to to
Site lacks �...
canopies preferred. Habitats include
SU table habitat
Joshua tree, pinyon juniper, mixed
?
chaparral, sagebrush, and rrins t. desert
habitats.
To der? trouts None
SSC None
Most abundant in clrier open stages of
None
(American badger)
most shrub, forest, and herhacemAs
� Site lacks �
habitats friable snarls
sun sble habitat.. f
Antro ous tdrNdus None
SSC None
Crcurs In desert;;, grasslands, shrubland ,
Loss
(pallid bat)
� woodlands and forests but is most
fi
Sre lack,
common in caper,, dn1 habitats.
_oita e,e ht..brtaf. 1
�Commonly roost in rock crevices, caves,
a
end mine.iunnr�ds but also roost to the
1.
attics of houses, under the nave of
�
thorns in hollow trees. Roosts rnusi
�
protect hats from high ternper atures,
t ;
tosiurus blossesiilii None
SSC None
The red bat is locally common in some
Low
(western reed Liar)
areas of California, occurring from Shasta
Site lacks
County to the 1Cdda£acan harder, west of
� suitable habitat
the Sierra Nevada/Cascade crest and
deserts, The winter raangd includes
western lowlands and coastal regions
s£rrrth of San Francisco gay. There is
i
migration between surnmer and winter
h
ranges, and migrants rnaybe Found
",a itode the normal range, Roosting
habitat inCILIduS forests ,nd woodlands
frurr, ,eta lev6 up through mixed conifer
forests, Feeds over a wide variety of
habitats inC"iE1ding grasslands, .shrubl ands,
open woodlands and foresus, and
crrsplyrrrds, Nol Found in deserf area:,,
f osiurun chierous None
None None
Hzibltats suitable for bearing young
!raw
(hoary bat)
inclrade all woodlands and forests with,
Site lacks
l mediurn to large -size trees and dense
( suiiairle ia,"karat
foliage: F?udng migration af.ion in southern
California, males are found M loothllls,
descrts and MnLdniains females in
lowlands arid coastal valleys,
Laslurus xanthlnus None
SSC None
A year-round resident of Southern
Low
(western yellow bat)
California found below 2000 feet in or
Site lacks
near riparian habitats. Roosts in trees,
:,➢astable habitat
including palm trees, in and near palm
oases and riparian habitats.
Reptiles
Aspidoscelis tigrisstejnegerr None SSC Nohe Found in a variety of ecosystems, Low
(coastal whiptail) primarily hot and dry open areas with Site lacks
sparse foliage -chaparral, woodland, and suitable habitat
8 riparian areas
k) Have a substantial adverse effect on any riparian habitat or other sensitive natural
community identified in local or regional plans, policies, regulations or by the California
Department pfFish and Game orU.S.Fish and Wildlife Service?
No Impact: The proposed project area and surrounding area does not contain any sensitive vegetation
natural communities that would be regulated by the California Department of Fish and Wildlife or the
United States Fish and Wildlife Service. The construction and operation of the proposed project would not
result in adverse impacts to any sensitive vegetation natural communities.
Mitigation Measures: Nomitigation measures are required.
c) Have substantial adverse effect on state orfederally protected wetlands (|nc|uding,but
not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological
interruption, orother means?
No Impact: The project area contains no hydrological features and has no wetland, marsh, vernal pool, or
costal habitat within its boundary. The project area consists of urbanized setting with sparse ornamental
trees and shrubs in which nowetlands are present. Additionally, the National Wetlands |nventory(NVV|)
was assessed within the proposed project area and nowetlands were documented within the project area.
The construction and operation of the proposed project would not result in adverse impacts to Wetland
Waters of the United States/State.
Mitigation Measures: Nomitigation measures are required.
d) Interfere subotamtia||ywith the movement ofany native resident ormigratory fish orwild (ife
species orwith established native resident ormigratory wildlife corridors, orimpede the use
ofnative wildlife nursery sites?
Less Than Significant |mopautWithMhiga1onlncorporated:Thereisnosuitob|ehabitaiin1hepnoject
area for native resident or migratory fish. The project area vicinity has a scattering of ornamental trees.
However, because the project area experiences high levels of traffic noise, it is unlikely that migratory birds
would nest within the project area. Construction activities fortheproposed project would remove some of
the existing trees from the project area. In the event nesting migratory birds are present, adverse direct
impacts could occur. To avoid direct impacts to migratory birds that might nest within the project area
trees, Mitigation Measure B|O-1 is recommended, which would require nesting bird survey on trees
proposed to be removed if construction activities are proposed between February 1 and August 31. With
implementation of Mitigation Measure B|O-1, potential direct impacts to migratory birds would be less
than significant. Because of the high traffic noise levels occurring within the project area, if nesting birds
are present, it would be unlikely they would be adversely affected by the project construction activity
MitigationMeasures:
B10-1e The removal of trees should be conducted outside of the nesting season (February;I to August
31) to the extent feasible. If tree removal activities occur between February land August 31,
a nesting bird survey shall be conducted by a qualified biologist within no more than 72 hours
of such scheduled disturbance, to determine the presence of nests or nesting birds on trees
proposed to be removed. if active nests are identified. Tree removal activities will be halted
until the nesting effort is finished (i.e., the juveniles are surviving independent from the nest).
The onsite biologist will review and verify that the nesting effort has finished. Tree removal
work can resume when no other active nests are found.
e) Conflict with any local policies or ordinances protecting biological resources, such as a tree
preservation policy or ordinance?
No Impact; According to Section 7605 of the Downey Municipal Code, any street tree removed shall be
replaced if a replacement is deemed appropriate and if it is mutually agreed to by both the City and the
property owner. The replacement tree shall be selected in accordance with the official Tree Species List
and Master Street Tree Plan. The project proposes the removal of five ornamental street trees; however,
the project also proposes the installation of new landscaping, including trees that are consistent with the
City`s Master Street Tree Plan. This would result of the replacement of any removed trees and would not
conflict with any local policies or ordinances protecting biological resources.
MitigationMeasures: No> mitigation -measures are required.
f) Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community
Conservation Plan, or other approved local, regional, or state habitat conservation plan?
o Impact: The project area is not included within an adopted Habitat Conservation Plan or Natural
Communities Conservation Plan. Therefore, implementation of the proposed project would not conflict
with an adopted Habitat Conservation Plan or Natural Communities Conservation Plan,
Mitigation Measures: No mitigation measures are required.
W\KR0OODBOMB I',RDANDFbD8ENICE INTER SECI 0NUNPR8VEi� I0t 1PROQ83PNO, 79-07
4.5 Cultural Resources
The following analysis is based on a Cultural Resources Records Search and a Paleontology Records Check
prepared by VCS Environmental in January 2020. The report is presented in its entirety in Appendix B.
ENVIRONMENTAL ANALYSIS
Background
Cultural resources include prehistoric archaeological sites, historic archaeological sites, historic structures,
and artifacts made by people in the past. Prehistoric archaeological sites one places that contain the
material remains of activities carried out by the native population of the area (Native Americans) prior to
the arrival of Europeans in Southern California, Artifacts found in prehistoric sites include flaked stone tools
such asprojectile points, knives, scrapers, and drills; ground stone tools such as manos, metates, mortars,
and pestles for grinding seeds and nuts; and bone tools. Historic archaeological sites are places that contain
the material remains of activities carried out by people during the period when written records were
produced after the arrival of Europeans. Historic archaeological material usually consists of refuse, such as
bottles, cans and food waste, deposited near structure foundations. Historic structures include houses,
commercial structures, industrial facilities, and other structures and facilities more than 50yeaa old.
Regulatory Setting
NATIONAL REGISTER OFHISTORIC PLACES
Cultural resources are considered during federal undertakings chiefly under Section 106 of the National
Historic Preservation Act (NHPA) of19GG (as amended) through one ofits implementing regulations (36
CFR DOO). Properties of traditional religious and cultural importance to Native Americans are considered
under Section 101(d)(6)(A) of the NHPA, Section 106 of the NHPA (16 USC 470f) requires federal agencies
to take into account the effects of their undertakings on any district, site, building, structure, or object that
is included in or eligible for inclusion in the National Register of Historic P|aces(NRHP) and to afford the
Advisory Council on Historic Preservation (A[HP) a reasonable opportunity to comment on such
undertakings (36 CFR 800.1). Under Section 106, the significance of any adversely affected cultural resource
is assessed and mitigation measures are proposed to reduce the impacts toa less than significant level.
Significant cultural resources are those that are listed in or are eligible for listing in the NRHP in accordance
with the criteria stated at3G[FR6O4,which are listed below.
The quality ofsignificance in American history, architecture, archaeo|ogy, engineering, and culture is
present indistricts, sites, buildings, structures, and objects that possess integrityoflocation, design, setting,
mater|a�,vvorhn1anship,^� —feeling ="and association and:
'
* Are associated with events that have made a significant contribution to the broad patterns of our
..history,:
� ^ ° Are associated ' 'th�|�esof—'`'' ���:�--�nour~'—or'
u�� �/u/ persons ..w..canu past;
.~-
y the distinctive characteristics of a type, period, _ method of construction, ..that
/ev/euent the work of a master, or that _ � � anuusun8uunau/cnu/4/vvnosccomponemsmay|acx/no/moua|o/oznctomor -
Have el�ded'ormoy6e|Ukply to� vie|d']nforr� ' �i��r��� '
''-
[�L|FORNi4�EG|ITE�OFH|�T�RlCALRFB)VR' ' ' ' — ' '
CEQA requires a lead agency to determine whether a project would have a significant effect on one or more
'historical resources, A "historical resource" is defined as a resource listed in urdetermined to be eligible
for listing in the |fornHistorical Resources (CRHR)(ColifornbxPublic Resources Code/PRL],
�Suction2IO84l), a resource included inalocal register ofhistorical resources' 14 Colifornio Code of
'Regulations [C[R],Section l6O64.5[a][Zl);orany object, bui|dim8 structure,, site,Place,record, or �
'manuscriptthota|eada8encydeterminestbbeh�Lnhca|�signi�cant(14[[R' ^— ).
Section 5OZ4jofPRC,Section l5D64,5iofthe State [EQAGukJe|ines(~rro),and Sections 2l083.2and '
21084 1 of the CEGA. Statutes were used as the basic -luidelines for the Cultural resources study, PRC5M4.1
requires evaluation of historical resources t inBon the [RHR, The~~—�~~�^—~—
'purposes orthe CnnKare Uz maintain listings cdthe St te'shistorical resources and 'toindicate which
~ properties are to be protected from substantial adverse change. The criteria for listing resources in the -
[RHRwere expressly developed Lobe1naccordance with criteria developed for|istinRintheNRHP(perthe
criLaria|istLed|ntheCodU--+Fff- U-Jero/At-gU/oduns\-FR],Title 36,Section 6O4)and include those listed below. �
A resource may be listed as an historical reSOUrce in the California Register if it meets any of the following
National Register of Historic Places criteria:
~ |s associated v-h evenisthat have -made asgnUlcantcontfbUtontVthe broad paLeonscf
California's history and cultural heritage;
. Is associated with the lives of persons important in our past,
� Embodies the distinctive characteristics of type, period, region, or method of construction, or
represents the work of an important creative individual, or possesses high artistic values; or
= Has yielded, or may be likely toyield, information important in prehistory orhistory,
According kzSection 15064,5(o)(3)(A—D)ofthe State [EOAGuidelines (l4[CR),aresource isconsidered
historically significant if it meets the criteria for listing in the NRHP (per the criteria listed at 36 [FR 60�4,
previously discussed), Impacts that affect those characteristics of the resource that qualify it for the NRHP
orthat would adversely alter the significance of resource listed in or eligible for listing in the [RHR are
considered to have a significant effect on the environment. Impacts to cultural resources from a project
are thus considered significant ifthe project: (l) physically destroys urdamages all orpart ofa resource;
(2) changes the character of the use of the resource or physical feature within the setting of the resource
that contributes to its significance; or (3) introduces visual, atmospheric, or audible elements that diminish
the integrity ofsignificant features of the resource. The purpose of a cultural resource investigation is to
evaluate whether any built environment cultural resources are present in or near the project area or can
reasonably be expected to exist in the subsurface. if resources are discovered, management
recommendations would be included that require evaluation of the resources for NRHP or CRHR eligibility.
HUKXANREMA|NI
Section 7050.5 of the California Health and Safety Code provides for the disposition of accidentally
discovered human remains. Section 7050.5 states that, if human remains are found, nofurther excavation
or disturbance of the site or any nearby area reasonably suspected to overlie adjacent remains shall occur
until the County Coroner has determined the appropriate treatment and disposition of the human remains.
Section 5097.98 of the PRC states that, if remains are determined by the Coroner to be of Native American
origin, the Coroner must notify the Native American Heritage Commission within 24 hours which, in turn,
must identify the person or persons it believes to be the most likely descended from the deceased Native
American. The descendants shall complete their inspection within 48 hours of being granted access to the
site. The designated Native American representative would then determine, in consultation with the
property owner, the disposition ofthe human remains.
ARCHAEOLOG|[AL/H|STOR|CALRESOURCES RECORDS SEARCH
An archaeological and historical resources records search was conducted by the South Central Coastal
Information [enter (S[[|[) at California State University, Fullerton for a one-half mile radius around the
project area. The S[C|[ is the designated regional repository of the California Historical Resources
Information System (CHR|S) for records regarding archaeological and historical resources and associated
studies in LosAngeles County. The [HR|Ssystenn provides data on the NRHP, [RHR, California Historical
Landmarks ([HL), California Points of Historical Interest ([PHI), and Historical Landmarks of Los Angeles
County, plus historical maps and photographs as needed.
The SCCIC concluded that there have been two cultural resources studies completed within one-half mile
ofthepnojectareo.Oneoftheminc|udesai|eastaportionofthecurnentprojectarea;refertoTable 4.5-
1,
Table 4.5-1
LA+10525: This survey was z cultural resources assessment for the proposed Lakewood Boulevard Street
Improvement Project. The linear project extended through the current project area; however, the five
resources recorded were not within aone-half mile ofthe project area.
ReSouoss
The records search concluded that nocultural resources have been recorded within the project area. One
is recorded within a one-half mile radius of the project area; referto Table 4.5-2, CufturafResources Within
One-Holf y0ile of the Pro ect Area.
Table 4.5-2
P-19-177349: This
a McDonald's restaurant and
is the
st
McDonalds in the
-United~ operating
- 'States,ohginalynpenin8inAugus[1953.T\moMcOonaUd/arest urantsvverebmik-`orto1hlsone
and both have been demolished,
PROJECT IMPACTS:
a) Cause a substantial adverse change in the significance of ahistorical resource pursuant to in
Section15o64.5?
, ~
Less Than Significant Impact: The project area is located within an urbanized area and surrounded by
developed land uses. The records search review identified that there were no listed historical properties
within the project area. One known historical structure, an existing McDonald's restaurant located nearthe
project area, would not be affected by the project. Implementation of the proposed project would not
adversely affect any existing historical resources.
Mitigation Measures: Nomitigation rneasuresarercquired
substantial archaeologicaladverse resource
pursuant to Section I S064.S?
Less n Significant Impact With Mitigation Incorporated: � The
' �-records search'review
--identified that
there were norecorded archaeological siteswithnthepnojec area, The proposed project would involve
� excavations up to 14 feet in depth, which would m ,,act, native sails. Even though the project area has been
previously disturbed because cultural resources are known tooccur inthe regional area, there would still
�
� be some potential, although remote, for the discovery of unknown archaeological resources. Therefore, it is recommended necommende6 that a halt condition should be in place for any ground -disturbing activities in the event �
unknown archaeological resources are encountered, With the implementation ofK1iU8adon Measure CR- �
1,potentia|adveraeimpactstounknownarchaeo|ugioa|resourcesw/oWdbe|essthansignificant, '
Mitigation Measures:
[R-1: |nthe event that any evidence ofcultural resources 1sdiscovered, all work whhinfhe-'cinhy
of the find should stop until a qualified archaeological consultant can assess the find and make
recommendations.
c) Disturb any human remains, including those interred outside of dedicated cemeteries?
Leos Than Significant Impact With Mitigation Incorporated: No human remains, or cemeteries are
known to exist within or near the project area. However, there is always the potential that subsurface
construction activities associated with the proposed project could potentially damage or destroy previously
undiscovered human remains, Accordingly, this is a potentially significant impact. In the event of the
accidental discovery or recognition of any human remains, [EQAGuidelines Section 15064,5; Health and
Safety Code Section 7050.5; Public Resources Code Section 5097.94 and Section 5097.98 must be followed.
With the implementation of Mitigation Measure CR-2, potential impacts to human remains would be less
than significant.
LAKEWOOD ROULEVARDAND RORENCE|NTERSECT0N|NIPKOVEMENTPROJECT (C|PNO, l9-07)
N|Ua|S�udy!kfitic! atidUedasNon
Mitigation Measures:
[R-2: If human remains are encountered during excavation activities, all work shall halt in the vicinity
of the remains and the County Coroner shall be notified (California Public Resources Code,
Section S097.98). The Coroner will determine whether the remains are of forensic interest, If
the Coroner, with the aid of a qualified Archaeologist, determines that the remains are
prehistoric, she/he will contact the Native American Heritage Commission (NAH[).The NAH[
will be responsible for designating the most likely descendant (MLD), who will be responsible
for the ultimate disposition of the remains, as required by Section 7050.5 of the California
Health ondSofetyCode, The IVILD shall make his/her recommendation within 48 hours of being
granted access to the site. If feasible, the IVILD's recommendation should be followed and may
include scientific removal and non-destructive analysis of the human remains and any items
associated with Native American burials (California Health ondSofety[ode, Section 7050.5). If
the landowner rejects the IVILD's recommendations, the landowner shall rebury the remains
with appropriate dignity on the property in a|ocatiun that will not be subject to further
subsurface disturbance (California Public Resources Code, Section 5097.98).
Administrative Draft � July 2020 4,5-5 Cultural Resources
This page intentionally left blank,
The foUowinganakaiaisbased onznenergyanalysiscnntoinedinthe AirQua |ityandGneenhouseGas Study
prepared by Birdseye Planning Group in December 2019. The report is presented in its entirety in Appendix
A�
a) Result in potentially significant environmental impact due to wasteful, inefficient, or
unnecessary consumption mfenergy resources, during project construction oroperation?
Less Than Significant Impact: Implementation of the proposed project would result in the commitment
of energy resources. During construction, energy supplies would mostly be fuels to operate heavy
equipment to construct the proposed project. The energy consumption impacts would occur at different
levels throughout the construction phase. Table 4.6-1' and Table
4.6-2, ' show estimated fuel gasoline demands for construction workers,
diesel fuel demand for hauling trips, and fuel for construction equipment. Asshown below, the fuel
demands during operation would be negligible. The long-term operation of the proposed project would
involve periodic inspection and maintenance trips, which would involve minimal commitments of energy.
Table �6-2
Construction Diesel Fuel Demand
Mitigation Measures: No mitigation measures are required.
b) ^Conflict with or obstruct a state omrlocal jplan 1for renewable energy or energy efficiency?
No Impact: The proposed project would berequired to comply with the California Air Resources Board
emission requirements for construction equipment, which includes measures to reduce fuel consumption,
such limits on idlingrequiring older engines and equipment `to'be Tepom/ered-orreplaced,
which helps reduce energy commitments during construction. The proposed project would also be required
to adhere 1othe provisions ofthe '2O13 California Green Building Standards Code, which establishes
planning and design standards, energy efficiency (in excess of the California Energy Code requirements),
water conservation, and material conservztion.Add\tionaU\\ the City of Downey Conservation Element
provides policy guidance thatfocuses on Citywide energy reduction, including ensuring the installation of
energy efficient streetlights and traffic signals. With compliance with State efficiencyrequirements and
implementation of the [ity's Conservation Element energy reduction goals and policies, the proposed
project would not conflict with orobstruct a state or local plan for renewab|c energy orenergy efficiency.
Mitigation Measures: No mitigation measures are required,
LAKBNDOD B0HL8ARD8NDFLOREKEI�JT RSEO10N1f01R0VE�t_'KVfPRQJ830PN�l9�7
Less Then
Potentially
Significant
Less Than
No
Would the project:
Significant
ImpactWith
Significant
Impact
Impact
Mitigation
Impact
Incorporated
a
Directly or indirectly cause potential substantial
adverse effects, including the risk of loss, injury, or
death involving:
1) Rupture of a known earthquake fault, as
delineated on the most recent Alquist-Priolo
Earthquake Fault Zoning Map issued by the
State Geologist for the area or based on other
El
0
substantial evidence of a known fault? Refer to
Division of Mines and Geology Special
Publication 42.
2) Strong seismic ground shaking?
El
El
0
3) Seismic -related ground failure, including
El
b.
Result in substantial soil erosion orthe loss of topsoil?
El
El
c.
Be located on a geologic unit or soil that is unstable,
or that would become unstable as a result of the
project, and potentially result in on -or off -site
0
D
El
landslide, lateral spreading, subsidence, liquefaction
or collapse?
d.
Be located on expansive soil, as defined in Table 18-1-
B of the Uniform Building Code (1994), creating
El
El
0
substantial direct or indirect risks to life or property?
e.
Have soils incapable of adequately supporting the use
of septic tanks or alternative waste water disposal
El
El
systems where sewers are not available for the
disposa I of waste water?
f.
Directly or indirectly destroy a unique paleontological
El
resource or site or unique geologic feature?
The following analysis is based on information provided in the Pavement Design Memorandum prepared
by 0az4kourman &Associates in February 2020.The Pavement Design Memorandum is presented in its
entirety Appendix [.
a) Directly or indirectly cause potential substantial adverse effects, including the risk of loss,
other substantial evidence of a known fault? Refer to Division of Mines and Geology
Special Publication 42.
No Impact: The Alquist-Priolo Earthquake Fault Zoning Act regulates development near active
faults in order to mitigate the hazards of surface fault -rupture. An active fault is one that has
experienced earthquake activity in the past 11,000 years. Under the Act, the State Geologist is
required to delineate special study zones along known active faults, The Act a Iso requires that prior
to approval of a project, a geologic study be prepared to define and delineate any hazards from
surface rupture and that a SO -foot building setback be established frorn any know trace hazard.
- . According to the CaUfon�a,Gco|o�c�Survey and the (]tycf General Plan, �there � are no
' —�~A|q0' hcD Faults within -''
for ground rupture impacts,
Mitigation Measures- Npmitigation measures are required.
2) Strong seismic ground shaking?
Less Than Skonific-antImpact. The Los Angeles Basin contains numerous regional earthquake
faults, several which are in pnoximiLy iothe City ofDowney. Existing faults that would most likely
impact the project area asaresult ofseismic activity would include the Norwalk Fault, 'Compton -
Los Alamitos Fault, 'and the Whittier Fault. In the event moderate to laze earthquake occurs
along one cfthese |faults, the project area could have the potentialfor periodic shaking, possibly
^ofconsiderable intensity. TheMskforseismicshakingirnpadswithintheprojectaneav0ou|d^be|ike
other areas in the Southern California region, The proposed project does not involve the
construction of any habitat St.'ructures thatwould increase the risk of injury or 'loss of property frorn
_ seismic shaking impacts. The proposed utility relocations and traffic signal replacement would be
_ designed to meet the most recent seismic standards of the California Building [ode to withstand
anticipated ground shaking caused by an earthquake within on acceptable level of risk. With
compliance of the California Building Code Seismic Safety Standards,pu1andz| seismic shaking
impacts would be less than significant.
Mitigation Measures: Nomitigation measures are required,
-�--
3) Seismic -related ground failure, including liquefaction?
Less Than Significant Impact: Liquefaction is the phenomenon in which loosely deposited soils
located below the water table undergo rapid loss of shear strength due to excess pore pressure
generation when subject tostrong earthquake induced ground shaking. Liquefaction is known
generally to occur in saturated or near -saturated cohesion -less soils at depths shallower than 50-
feet below the ground surface. The City ofDowney General Plan identifies that the Dnoiect area is
within a Liquefaction Hazard Zone, The risk for liquefaction impacts would be like other areas in
the Southern California region. The proposed project does not involve the construction of any
habitat structures that would increase the risk of injury or loss of property from potential
liquefaction impacts, The proposed utility relocations and traffic signal replacement would be
designed to meet the most recent seismic standards of the Caltrans and Greenbook Standards to
withstand anticipated ground shaking caused by an earthquake within an acceptable level of risk.
With compliance of the California Building Code Seismic Safety Standards, potential seismic shaking
impacts would beless than significant,
Mitigation Measures: No mitigation measures are required,
LAKEWOOD BOULEVARD AND FLORENCE iNTERSECT'ION IMPROVEMENT PROJECT (CIP NO, 19-07)
vD,ara',191
nlllllflff��
in poorly cemenfea or nig"IT 11
adjacent to existing landslide deposits. According to the California Department of Conservation,
California Geological Survey, the project area is not within a vicinity of any existing or historic
landslide deposits and would not be subject to landslide risks.
Result in substantial soil erosion or the loss of topsoV
owl
ini.irect y tra nsport sediment i • ications. ACCOf ?."I () I I IC= L
(SWRCB) Order 2009-009-DWO, construction projects which disturb one or more acres of soil would be
required to obtain coverage under a General Construction Permit by the SWRCB. The earthwork activities
for the proposed project would disturb more than one acre and would be required to obtain a General
Construction Permit. The General Construction Permit would require the filing of a Notice of Intent with
erosion control Best Management Practices would be identified and implemented. With the
implementation of Mitigation Measure HWQ-1 potential erosion impacts would be less than significant.
Mitigation Measures:
HWQ-1: Priorto the start of construction, the proposed project will obtain coverage under the General
Construction Permit by the SWRCB and in compliance with the permit shall file a Notice of
Intent with the RWQCB and prepare and implement a SWPPP.
c) Be located on a geologic unit or it that is unstable, or that would become unstable as a
result of the project, and potentially result in on -or off -site landslide, lateral spreading,
subsidence, liquefaction or collapse?
"M C
soils consis o s
potential for severe differential settlement, landslides, and seiches within the project area would be low.
based on the existin , avement distresses, the
i-,ee #t i
and earthwork recommendations from the Pavement Design Memorandum. The Pavement Design
Memorandurn'WereApared for the tL"an,;tp-d ect by Diaz-Yourman & Associates, recommends minimum
pavement thicknesses to ensure the geotechnical stability of the project. The recommended pavement
design is based on the soils encountered below the existing pavement by the Caltrans and American
Association of State Highway and Transportation Officials (AASHTO) engineering design standards and the
traffic index. ImplementIng the recommended pavement design would ensure that no adverse soil or
geologic impacts would occur that would result in the proposed project becoming unstable. with the
implementation of Mitigation Measure GEO-1, potential geologic impacts would be less than significant.
Administrative Draff 1 Julip 20'0 4,7-3 Geology and Soils
Mitigation Measures:
GE[-1: The design and construction cfthe proposedproject will implement 1he recommended
/pavement design and earthwork recommendations provided by the Pavement Design `
'-1Memorandum prepared byDiaz4ourmanand Associates inFebruary 2O2O.
�d) Be located on expansive defined 8^1-13 of the Uniform
~Building ^^ ' -(199411
creating substantial direct or indirect risks to life or property?
Less Than !Expansive soi|—-'~characteristically clay -^ � oreprone to--~ -' large volume
^..~
Memorandum prepared for the proposed project collected and reviewed soils samples taken within the
project area to optermine Pxpan.,;ivpnpss of the SUbsurface soil conditions, The subsurface soil-,
encountered in the project area were determined to have low expansion potential. Therefore, the
proposed project would not be subject to adverse expansive soil impacts that would result in substantial
direct or indirect risks to life or property.
Mitigation Measures: Momitigation 'meaouresare required.
e) ~ Have soils incapable
'- wastewater disposal systems where sewers are not available for =the disposal = waste *"ate/:
NoImpact: The proposed project does not propose septic tanks oralternative wastewater disposal
o�0Ne�surea NomUigadonmeasunesarereq�red
f)- °^-�D| indirectly^~= —~paleontological resource or site or unique
gic
' --� —
��
'1�����
' ~
-�Less Than Significant ImpactWith Mitigation Incorporated. The Natural History Museum of Los Angeles
County (NHMLAC) completed a Vertebrate Paleontology Records Search for the project area on November `
14, 2019.The record search determined that no paleontological resources are recorded within the project
area. However, fossils have been found and recorded in similar sedhnenta--depositsinthe nearby area
that could be encountered at the depth of the proposed excavations for the proposed project,
The surface deposits inthe entire project area consist ufyounger Quaternary Alluvium, as overbank
deposits from the San Gabriel River that flows just to the east. These younger Quaternary deposits usually
du not contain significant fossil vertebrates, at least in the uppermost layers, but the underlying older
Quaternary deposits found at varying depths could contain significant vertebrate fossils. The closest
vertebrate fossil locality from the older Quaternary deposits would be LACM 3347, situated east-scouthealst
of the project area north of Leff ingwell Road east of La Mirada Boulevard, that produced a fossil specimen
of horse (Equus) at a depth of only two feet below the surface. The next closest vertebrate fossil localities
from these Quaternary deposits would be LACM 770I-7702, northwest of the project area in the City of
Commerce, near the intersection ofAtlantic Avenue and the Long Beach Freeway (1-710), that produced
fossil specimens of Lhreespine stickleback (Gco1erus/eus ocu/eutus), salamander (8otrochuseps), lizard
(/ucerti0o{ snake ([b/ubrkdoe), rabbit (Sy/v//ogus), pocket mouse (M/cnotus), harvest mouse
(Reithrodontomys), and pocket gopher (Thomomys), at 11 to 34 feet below grade (Mcleod 2019). To avoid
potential impacts to unknown paleontological resources, a halt condition is recommended that would stop
construction activities in the immediate area of the finding until the significance of the finding is
determined. With the implementation of Mitigation Measure PATEO-1, potential impactsto paleontological
resources would beless than significant.
LAKEWOOD BOULEVARD AND [LOHENCEINTERSECTION IMPROVEMENT PROJECT WJ9N&19-07
itpd keoative DeCaratiori
PALEO-1: In the event any evidence of paleontological resource is discovered, all work within the
vicinity of the find should stop until a qualified Paleontologist consultant can assess the find
and make recommendations.
Administrative Draft I July 2020 43-5 Geology and Soils
�r: �r;
LAKE9OUDBOULEVARD AND F0RENCE|N��U'1'10N� IV� P R XV EM!ENYPRWJEQK|pN"J,l9871
UN i Dcd i
4.8 Greenhouse Gas Emissions
ENVIRONMENTAL ANALYSIS
The following analysis is based on an Air Quality and Greenhouse Gas Study prepared by Birdseye Planning
Group in December 2019. The report is presented in its entirety in Appendix A.
Greenhouse Gas Emissions (GHGs) are comprised of atmospheric gases and clouds within the atmosphere
that influence the earth'stemperature by absorbing most of the infrared radiation that rises from the
sun -warmed surface and that would otherwise escape into space. This process is commonly known as the
"Greenhouse Effect". GHGsare emitted by natural processes and human activities. GHGsinclude carbon
dioxide ([06), methane ([H4), nitrous oxide (NzD), hydrofuonocarbons (HFCs), peMluorocarbons (PF[s),
and sulfur hexafluohde (SFs). Other greenhouse gases include water vapor, ozone, and aerosols. Water
vapor is an important component of our climate system and is not regulated. Although there could be
health effects resulting from changes in the climate and the consequences that it can bring about,
inhalation of greenhouse gases at levels currently in the atmosphere will not result in adverse health
effects with the exception of ozone and aerosols (particulate matter). The potential health effects of ozone
and particulate matter are discussed in the air quality criteria pollutant analyses. At very high indoor
concentrations (not at levels existing in outside areas), carbon dioxide, methane, su|furhexeOuoride, and
some chlorofluorocarbons can cause suffocation as the gases can displace oxygen.
Regulatory Framework
California Air Resources Board (CARB) has proposed interim statewide CEQA thresholds for GHG emissions
and released Recommended Approaches for Setting Interim Significance Thresholds for Greenhouse Gases
under the California Environmental Quality Act on October 24, 2008, that has been utilized by the
S[AQMD's GHG Significance Threshold Stakeholder Working Group in their framework for developing
S[AOMD's draft GHG emissions thresholds. The State currently has no regulations that establish ambient
air quality standards for GHGs. However, the State has passed laws directing CAR8tn develop actions to
reduce GHG emissions. The following is a listing ofrelevant State laws to reduce GHG emissions. Detail
discussion of each State Law and Executive Order is presented in the study in Appendix A.
~ Executive Order B-3O-15,Senate Bill 32and Assembly Bill 1g7
• Assembly Bill 14B3
• Executive Order S-3'O5
• Assembly Bill 32
• Executive Order S-1-O7
° Senate Bill g7
° Senate Bill 375
° Assembly8iU341andSen�te8iUs95Qand1�74 _
�~-
* California Code of Regulations (CCR) Title )'+, n— t 1
Thresholds
Pursuant to the requirements of SB97, the Resources Agency has adopted amendments to the State CEQA
Guidelines for the feasible mitigation of GHG emissions or the effects of GHG emissions, The adopted CEQA
Guidelines provide general regulatory guidance on the analysis and mitigation of GHG emissions in CECA
documents but contain no
gested thresholds of significance for GHG
lead
ies are
.-�--_-- givenhediscretion to ' quantitative�L'
r the assessment and mitigation of GI Gs
and climate change impacts, The general approach to developinga Threshold of Significance for GHG emissions
is toidentillythe ernissions level for Which d prujecL would not be expected to substantially conflict with existing
California legislation adopted to reduce statewide GHG emissions needed to move the state towards climate
stabilization, If a project would generate BHG emissions above the threshold level, its contribution to
cumulative impacts would beconsidered significant,
The S[AQVIDthreshold, which was adopted in December2OD8, considers emissions of over 10,000 rnethC �
tons CO2e/year to be significant. However, the SCACIMD's threshold applies only to stationary sources and is
expressly
'(SLAQNU,September 2010). Note hat|ead'aKendesretanthcresohsibi|h4'todptern�neg�n�ronceona' /
case-by�asebasis for each speci�cpn�ect, - -
PR(-p �FrT1mparTr,
a) ����� � indirectly, - ~--�h��may
- �� ���n���m� - ^
- ~ ���-- - ���_-_ 'impact on the environment?
' -Less Than Significant Impact:The vast majority ofproject activities donot {generate sufficjentGHG
emissions to create a project -specific impact through a direct influence of climate change; therefore, the
_ issue of climate change typically involves an analysis of whether a project's contribution towards an impact
iscunnu|afive|yconsiderable, "Cumulatively considerable" meansthattheinrrementa|s-----an individual
project are significant when viewed in connection with the effects of past projects, other current projects, and
Probable future Projects ([EQAGuidelines, Section 153S5).
For future pnoiect4 the significance of 6H6 emissions may be evaluated based on locally adopted
quantitative thresholds, or consistency with a regional GHG reduction plan (such as a Climate Action Plan),
The[ityofUowneydocsnothuvezOimateAcionP|an-AnEnergyAcionP|an(EAP)wasadoptpdinJO15
to define -he Citys long-term vision for achieving energy efficiency in local government facilities and within
the community. The City |scommitted to promoting long-term c||maie action activities that would reduce
energy usage and related 5HGemissions.The G4P has no quantitative thresholds for use in determining
the significance of GHG emission. Therefore, the proposed project has been evaluated based on 3,000 MT
C[2esignificance standard.
CONSTRUCTION EMISSIONS
Construction of the proposed project would generate temporary GHG emissions primarily associated with
the operation ofconstruction equipment and truck trips. Site preparation typically generates the �reatesL
emission quantities because the use of heavy equipment would be greatest during this phase of
construction. Emissions associated with the construction period were estimated based on the projected
maximum amount of equipment that would be used onsite at one time over the course of the project
duration, Air districts such as the SCAQMD have recommended amortizing construction -related emissions
over a 30-year period to calculate annual emissions. Complete CaIEEMod results and assumptions can be
viewed inthe Appendix A.
Construction activity was assumed to occur over a period ofapproximately six months beginning in mid-
2020. Based on [a|EEMod results, construction activity for the proposed project would conservatively
generate an estimated 125 metric tons of carbon dioxide equivalent (CO2e). Forthe purpose of this analysis,
kisassumedthatemissionsgeneratedduhngconstrucdonoftheintersectionimprovemen|swmu|doccurovcr
a 6-month construction cycle. As shown in Table 4.8-1, Estimated Construction Relote�t QLeenhouse Gas
total construction emissions amortized over 30-year period (the assumed life of the project),
would generate 1O.4metric tons ofC0zeper year.
Table 4.8-1
Estimated Construction Related Greenhouse Gas Emissions
OPERATIONAL INDIRECT AND STATIONARY D|KE[TEMISSIONS
Long-term GHG emissions relate to energy use, solid waste, water use, and transportation. Each source is
discussed below and includes the emissions associated with existing development and the anticipated
emissions that would result from the proposed project.
Energy Use: Operation of development typically consumes both electricity and natural gas. The generation
of electricity through combustion of fossil fuels typically yields CO2, and to a smaller extent, N20 and CH4.
Natural gas emissions can be calculated using default values from the CECsponsored CEUS and RASS studies
which are built into the [a|EEK4od. There would be no natural gas or electricity associated with the
operation of the proposed project, Therefore, the proposed project would not generate any emissions
associated with these two sources.
Water Use Emissions: The Ca|EEK4od results indicate that the proposed project would use approximately
1.1 million gallons of water per year for cleaning and maintenance and irrigation purposes. This is likely a
conservative estimate based on the scope. However, based on the amount ofelectricity generated to
supply and convey this amount ofwater, aashown In Table 4.8-2 E51'imotedAnnuyl Water Use Greenhouse
Gos Emissions, the proposed project would generate approximately 4.2 metric tons Of CO2e per year.
Estimated Annual Water Use Greenhouse Gas Emissions
Solid Waste Emissions: Based onthe scope ofthe project, there would benolong-term solid wa5tedisposal
needs, Therefore, no emissions related to solid waste disposal were calculated,
Transportation Emissions: The proposed project would improve traffic circulation and would 'not generate
additional vehicle trips within the project area, Therefore, there would be notransportation related GHG
-
emissioMszssociated'vvithoperationcfthepropogedpnoject.
-
GHG CUMULATIVE SIGNIFICANCE
metric
-^-'-�_-tons per year 'in __._ This total_ r_
emissions of 440.4 million metric tons. As referenced, the emissions are conservative and focused on water
consumption required for maintenance and anv landscape irriRation, Project -related annual GFIG emissions
would nor exceedd`�Lh�mh |d of Therefore, impacts from BH� emissions ~ _ ~ v �/�ov,n�u'/c'`unu~��/ycar. ,_pa �m ons
would be less than significant in the absence of specific federal, state or local thresholds, �
Mitigation Measures, Nomitigation measures are required, /
b) Con0|ct with an applicable^—``- plai=` policy`^ —or-- ulation adopted for the 1purpose mf reducing
the emissions of greenhouse gases? ~ _
NoImpact: The City ofDowney does not have anapAroved[ihnateAct�nP�n�The�k«do�shaveanEne�y
Action Plan that was ' approved in 2O15,The purpose mfthe EAPlstodefine the
^City of s|ong-tenn
vision for achieving energy efficiency in local government facilities and within the community, This is �
intended to be accomplished by demonstrating leadership through the implementation of cost-effective �
�
energy efficiency improveme�� in City -owned fa | and
energy-~=�=�-��
utilities and protecting the environment, The City of Downey understands the role energy usage and energy �
efficiency plays in maintaining a sustainable environment; and thus, is committed to promoting long-term �
climate action activities 10reduce energy usage and GHGemissions. `
One component of the EAP focuses on nedudnQ energy consumption associated with exterior lighting, The
EAP recommends that the City replace high intensity discharge (H ID) streetlight fixtures with more efficient
—� light emitting diode (LED) fixtures, It is recognized that majority of these fixtures are located in parking lots �
and in exterior light fixtures, however, streetlights meeting these goals can also be installed as part of the
pnniecttoreduceoveraUenergyconsumpt|onassoc|atedwithLhepn�cct
This would be consistent with the overall theme of the General Plan, Downey Vision 20I5, Conservation
Element (2005) which provides policy guidance focused on city -vide energy reduction. The proposed
project would reduce traffic congestion at the subject intersection; and as a result, would reduce mobile
source GHG emissions, The proposed project would be consistent with the Uty of Downey LAP and (jeneral
Mitigation Measures: No mitigation measures are required,
U\K80OODQOULBV ARDANV|14TEF&c r'0N|EN'rPR0T0PN���O�
--
ENVIRONMENTAL
as substances that have been discarded, discharged, spilled, contaminated' or are being stored prior to
proper disposal. e health impacts _hazardous materials exposure are based on the frequency of
'--ure the exposureath ndsusceptibility.
There would be the potential that hazardous materials could be transported through the intersection of'
Lakewood Boulevard and Florence Avenue, The transportation of hazardous materials through the City
would be required`~~comply -with , State and Federal laws and /regulations .involving the transportation cn
hazardous materials, Additionally, construction operations associated with the proposed project would
.-involve the handUn8.ofinddenta|amountsnfhazardous rnateha|s,such asfuds,oils and so|vents.'The
construction and ''
- .
eration of the
proposed projectuld be required to comply
federal laws and regulations regarding the handling and storage of hazardous materials. Compliance with
local, state and federal laws and regulations regarding the handling and storaFe of hazardous material
we,., id red u=- potentis- 1 l-Oza rdous rnaterial I m pacts to the pub lic to a less Lha n sign 'Ifica nT level.
Mitigation Measures: No mitigation measures are required.
k) Create a significant hazard tothe public mrthe environment through
— foreseeable
upset and accident conditions involving the release of hazardous materials into the
environment? ~~
Less Than Significant Impact:
^ Acindicated previously, there would
'be --the potential that �
materials could betransported through the i 'mectuncfLakewood Boulevard' and Florence Avenue and
that construction operaLious associated with the proposed project would involve the handling of
amounts of hazardous materials, such as fuels, oils and solvents. To minimize the inadvertent release of
~hazardousma�eria|sintothcenv|ronmen��heprnposed pr��ectwou|^ be required tocon1p�»vith|oca|, .�
State and Federal |amoand--~o|ations.AdditionnUu.Besf Management
�Practices would beimplemented
—
.^that would include hazardous material spill prevention and cleanup. Compliance with local, state and '
federal laws and regulations in -conjunction with implementation of Best Management Practices which `
would reduce the potential inadvertent release nfharardnus materials into the environment. '
Mitigation Measures: No mitigation measures are required.
- —�—�'Emit hazardous emissions vmr handle hazardous oracutely hazardous �� materials, substances,
or waste within one -quarter mile of an existing or proposed school?
Less Than Significant Impact: The closest school site tothe project would
^L-Doty k4idd|eSchool located
approximately O30 miles to the southeast of the proposed project area. As indicated previously, the
construction and operation of the proposed project would not emit hazardous emissions or handle
hazardous materials where they would pose a threat to pub|ic safety. The factthat the prniec1 arez is
located more than 0.25 miles to a school site and the proposed project would be required to comply with
local, state, and federal regulations to protect inadvertent release of hazardous materials, the potential
impact would beless than significant.
Mitigation Measures: Nomitigation measures are required.
d) Be located on a site which is included on a list ofhazardous materials sites compiled
pursuant tmGovernment Code Section 65962.5 and, as aresult, would |t create aoUgn1hcamt
hazard to the public or the environment?
Less Than Significant Impact: A database search of the Los Angeles Region State Water Resources Control
Board (SVVROB)GeoTr ckerDatzbasewasconductedtodetenninethepresenceofanyhazardouumeste
sites within the vicinity of the project area that could adversely impact the proposed project. As shown in
the proposed project right-of-way. Additionally, there are no Department of Toxic Substances Control
(DTSC) Cleanup Sites or Hazardous Waste Sites in the nearby area. There are two permitted underground
storage tank (UST) sites and two completed -closed leaking underground storage tank (LUST) cleanup sites
Florence Avenue intersection. In addition, there is a completed -closed LUST cleanup site and an open -
inactive cleanup site over 200 feet from the project area adjacent to the northwest corner of Florence
Avenue and Tristan Drive, which would not pose a hazardous risk for the proposed project. Based on the
ct would not create
significant hazard to the public or environment.
e) For a project located within an airport land use plan or, where such a plan has not been
adopted, within two miles mf a public airport orpublic use airport, would the project result
in safety hazard orexcessive noise for people residing orworking inthe project area?
No Impact. The project area experiences overhead aircraft traffic from Los Angeles International Airport
and Long Beach Airport. The closest airport tothe project area would be the Long Beach Airport, located
approximately eight miles tothe south. The project area is not within the Los Angeles International Airport
orLon8BeachAirportLandUseCompatibi|it' Plan airport influence area. Therefore, there would beno
airport safety hazards associated with the proposed project.
Mitigation Measures: No mitigation measures are required.
f) Impair implementation of orphysically interfere with anadopted emergency response plan
or emergency evacuation plan?
No Impact: According tothe City of Downey General Plan, Lakewood Boulevard and Florence Avenue are
not identified as evacuation routes. The proposed construction activities could temporarily reduce the
amount oftravel lanes within the project area. |nthe event there are temporary traffic lane closures, traffic
management controls would be implemented to ensure emergency access would be maintained all times
during construction.
Mitigation Measures: Nomitigation measures are required.
g) Expose people or structures, either directly or indirectly, to a significant risk ofloss, injury or
death involving Vv]|d|and fires?
No Impact: According tothe California Department of Forestry and Fire Protection, the project area is not
within a Wildland Fire Hazard Area. Therefore, implementation of the proposed project would not expose
people or structures, either directly or indirectly, to a significant risk ofloss, injury ordeath involving
wi|d|and fires. Therefore, no indirect fire hazard impacts are anticipated.
Administrative Draft � July 2020 49-3 Hazards and liazardou� Mpterials
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LAKEWOOD BOULEVARD AND"FLORENCE INTERSECTION
IMPROVLMLNI PK(JJLLI (LIP NU.19-UJ)
Initial Study/Mitigated Negative Declaration
Hazardous Waste Sites GeoTracker Radius Search
VCS Environmental
Figure 4.9 1
LA�0UD001�VARDAN�FUDRE�Z�TERS830M|�PR0��ENTPR8
KEED[R|PN0,l9o7)
Less Than
Potentially
Significant
Less Than
No
Woulld the project:
Significant
ImpactWIth
Significant
Impact
Impact
Mitigation
Ithipact
Incorp rated
a
Violate any water quality standards or waste
discharge requirements or otherwise substantially
E]
0
degrade surface or ground water quality?
b.
Substantially decrease groundwater supplies or
interfere substantially with groundwater recharge
El
El
such that the project may impede sustainable
groundwater management of the basin?
c.
Substantially alter the existing drainage pattern of the
site or area, including through the alteration of the
course of a stream or river or through the addition of
impervious surfaces, in a manner which would:
1) Result in substantial erosion or siltation on- or
El
off -site?
2) Substantially increase the rate or amount of
surface runoff in a manner which would result in
flooding on- or off -site?
3) Create or contribute runoff water which would
exceed the capacity of existing or planned
El
El
stormwater drainage systems or provide
substantial additional sources of polluted runoff?
4) Impede or redirect flood flows?
El
E]
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[9
d)
In flood hazard, tsunami, or seiche zones, risk release
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of pollutants due to project inundation?
e)
Conflict with or obstruct implementation of a water
quality control plan or sustainable groundwater
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management plan?
I
The following analysis is based on the Drainage Impact Memorandum prepared by BKF Engineers in April
2O2O.The report ispresented inits entirety inAppendix D.
I he City can be divided into three drainage areas with respect to the three receiving water bodies that
border the City, Roughly half of the City, east of Downey Avenue, drains to the San Gabriel River. The
northwest quadrant of the City, north of Firestone Boulevard and west of Downey Avenue, generally drains
towards the Rio Hondo River, The remaining southwest portion of the City, south of Firestone Boulevard
and west of Downey Avenue, drains to the Los Angeles River. The project area is within the northeast
surface water bodies would be the San Gabriel River and the San
Gabriel River Estuary. The study area also overlies the Central Groundwater Basin.
The San ?Gabriel FUve rshed is G09' square miles | Angeles
County. It is bound by the San Gabriel Mountains to the north, most of San Bernardino/Orange County to
the east, a segment ofthe Los Angeles River frorn the Sari Gabriel River to the west, and the Pacific Ocean
to the south, The watershed drains into the San Gabriel Riverfrom the San Gabriel Mountains flowing 58
miles south until its confluence with the Pacific Ocean. Major tributaries to the San Gabriel River include
Walnut Creek, San Jose Creek, Coyote Creek, and numerous storm drains entering from the 19 cities that
theSan Gabriel River passes through, The river is diverted into four dif Prent spreading grounds forground
water recharge.
� R|OHONDOmVERVV8TERSHED
The Rio Hondo Watershed is a 142 square mile sub -watershed of the much larger834 ~ square mile 'Los
Angeles River Watershed. The primary surface water body is the Rio Hondo River, There are six major
tributaries: the Alhambra, Rubio, Eaton, Arcadia, Santa Anita, and Sawlzit Washes. The western portions of '
the City cfPicoRiveraaneinc|udedwithin the watershed, �
Surface Water Bodies
S«NGABR|ELRIVER
The San Gabriel River flows from the San Gabriel Mountains inthe north through the San Gabriel Valley '
and the Los Angeles Coastal Plain and empties into the Alamitos Bay, The River runs parallel to the 1-605
' almost the entire length ofthe freeway Beach.Thern��octibutQre�io1h�San Gabrie|_�.~.-
River are VV�h�
Jose Cree�'androyuteCreek.~
'SANGABR|ELRIVER ESTUARY
'
~' ^' /�c
- |��ban��hr|e|River Estoary|aapproximately 3.4//meu/ong wu//asoftbottonnandconcreter|praps|des '
and receives flows from Reach lofthe San Gabriel River.
Central Basin Groundwater Basin
The Contra | 8zsin provides -approximately 96 percent ofthe water supplies to the City of Downey.The
Central Basin underlies the southeastern part of the Los Angeles Coastal Plain, covering 277 square miles.
The Central Basin is bound on the north by the La Brea High and on the northeast and east by the Elysian,
Repet1c\ Merced and Puente Hills. The southeast boundary between the Central and Orange County
Groundwater Basins roughly follows the Coyote Creek. The southwest boundary, which separates the
Centra|andVVest[oaatBasins,istheNewpoMt-|nQ|ewoodfau|tsystemandthuNevvport-|ng|ewoodupUft.
The total storage capacity of the Central Basin is estimated to be approximately 13.8 million acre-feet.
Groundwater in the Central Basin occurs in Holocene and Pleistocene sediments at relatively shallow
depths. The general direction of the groundwater flow is from the northeast (San Gabriel Valley Basin and
recharge areas) tmthe southwest (West Coast Basin and Pacific Ocean). The Montebello Foreboyarea,
located just south ofWhittier Narrows, consists ofhighly permeable soils and isthe most significant area
for surface recharge of the Central Basin and the adjacent West Coast Basin.
There are no areas within the City of Downey that are located within the Federal Management Agency
(FEMA)1OU\earflood zone. All ofthe City ofDowney iswithin a5OO'yearflood zone (aSOO- eur0ood|s
one of intensity that has a 0.2 percent chance of occurring in any given year). In Downey, flood management
is provided by a network of box culverts, underground storm drainpipes, and open channels operated and
maintained by the Los Angeles County Department of Public Works. These storm drain facilities, by and
large, have the capacity to convey surface runoff from o fU;earflood return frequency event. Some
localized flooding could occur in areas where there are deficiencies in the existing storm drain system.
Regulatory Setting
The following is discussion of Federal, State and local water resource programs that are applicable tothe
proposed project.
CLEAN WATER ACT
The objectives of the Clean Water Act are to restore and maintain the chemical, physical, and biological
integrity of the Waters of the United States, The Clean Water Act establishes basic guidelines for regulating
discharges of pollutants into the Waters of the United States and requires states to adopt water quality
standards to protect health, enhance the quality of water resources and to develop plans and programs to
implement the 4c1. Below is a discussion of sections of the Clean Water Act that are relevant to the
proposed project.
Section 3D3(0)Water Bodies
Under Section 303(d) of the Clean Water Act, the California State Water Resources Control Board (SWRCB)
is required to develop list ofimpaired water bodies. Each of the individual Regional Water Quality Control
Boards (RVVQCBs) are responsible for establishing priority rankings and developing action plans, referred
to as total maximum daily loads (TMULs) to improve water quality ofwater bodies included in the 302(d)
list. A list of the study area receiving water bodies that have been listed as 303(d) impaired water bodies is
shown in Table 4.104,
303(d)Listed Impaired Water Bodies
Section4O2
Section 402 of the Clean Water Act established the National Pollutant Discharge Elimination System
(NPDES) to control water pollution by regulating point sources that discharge pollutants into Waters of the
United States. |nthe State of California, the EPA has authorized the SVVRC8to be the permitting authority
to implement the NPDES Program, The SVVRCB issues two baseline general permits, one for industrial
discharges and one for construction activities (General Construction Permit). Additionally, the 0PDES
Program includesthe long-term regulation of stormwater discharges from medium and large cities through
the Municipal Separate Storm Sewer System (KX54) Permit.
Short -Term Stormwater Management
Stormwater discharges from construction site-, with a disturbed area of one or more acres are required to
either obtain individual NPDES permits for stormwater discharges or be covered by a General Construction
Permit, Coverage under the General Construction Permit requires filing a Notice of Intent with the SWRCB
and preparation of a Stormwater Pollution Prevention Plan (SWPPP). Each applicant under the Construction
General Permit must ensure that a SWPPP would be prepared prior to grading and implemented during
construction. The primary objective of the SVVPPP is to identify, construct, implement, and maintain Best
Management Practices (BMPs) to reduce or eliminate pollutants in stormwater discharges and authorized
non-stormwater discharges from the construction site dUring construction, BMPs includes programs,
technologies, processes, practices, and devices that control, prevent, remove, or reduLp pollution.
Long -Term SionnwaterManogement
' Thee�would be ' ~— which is -� ',--
p/v�v^ p'g�uwmu nn�/�mcn��omon��uycxuo�ney=."..s co-permoTemrothe cuonry
of Los Angeles NPDES K454permit and would be responsible for the implementation of the permit
requirements. Under the 0PDE3 MS4Permit, construction ro]ecl are defined aSPriority Projects orNon-
Priority Projects based on the type of project and/or level of development intensity.
Priority Projects
Management Plan (WQMP) based on the County of Los Angeles
The Priority Project WQMP
isreouiredtodemonsfra+ethata- 'ea�d ^--�0ltrate, harvest, -`—~ evapotranspire or otherwise
treat runoff generated from an 85th percentile storm over a 24-hour period.Th Model WQMP requires
thatand
_- be incorporated _-_ nto ''-
ZD
retain runoff tdthemaximum practicable. Such LID site designprinciples include, -1but are limited
-to, minimizing impervious areas, and designing impervious aeustodnaintopefviousareas.-
Non -Priority Projects
Certain projects that donot meet the Priority Project criteria are considered Non -Priority Projects and
_-require -preparation .czfNon-Priority | -(Non-Priority Project Plan requires
documentation 'ofthe selection
-- site design features, source control and any other B&4Pslnc|U'ed in a �
STATE OF CALIFORNIA PORTER COLOGNE WATER QUALITY CONTROL ACT
The Porter Cologne Water Quality Act of1SG7requires the SVVNCAand the nine RVVO[8stoadopt water
quality criteria for the protection and enhancement of Waters of the State of California, including both
surface waters and groundwater. The SVVRC8 sets statewide policy and together with the RVVQ[8,
implements state and federal water quality laws and regulations, Each of the nine regional boards adopts
a Water Quality Control Plan or Basin Plan. The study area surface water and groundwater bodies are
included within the Los Angeles Region Basin Plan.
LOSAMGEBSREGION BASIN PLAN
The Los Angeles Region Basin Plan (Basin Plan) designates beneficial uses for surface waters and
groundwater basins within the San Gabriel and Rio Hondo Watersheds and identifies quantitative and
narrative criteria for range of water quality constituents to protect these beneficial uses, The beneficial
uses inthe Basin Plan are described in
Table 4.10-2
Ab6r61ition 136neftlIA Use
GWR Groundwater Recharge waters are used for natural or artificial recharge of groundwater for
purposes that may include, but are not limited to, future extraction, maintaining water quality or
halting saltwater intrusion into freshwater aquifers.
REC I Water Contact Recreation waters are used for recreational activities involving body contact with
water where ingestion of water is reasonably possible. These uses may include, but are not limited
to swimming, wading, water skiing, skin and scuba diving, surfing, whitewater activities, fishing
and use of natural hot springs.
REC 2 Non -Contact Water Recreation waters are used for recreational activities involving proximity to
water, but not normally body contact with water where ingestion of water would be reasonably
possible. These uses may include, but are not limited to picnicking, sunbathing, hiking,
beachcombing, camping, boating, tide pool and marine life study, hunting, sightseeing and
aesthetic enjoyment in -conjunction with the above activities.
WARM Warm waters support warm water ecosystems that may include but are not limited to,
preservation and enhancement of aquatic habitats, vegetation, fish, and wildlife, including
invertebrates.
LWARM Limited Warm Freshwater Habitat waters support warm water ecosystems which are severely
limited in diversity and abundance.
COLD Cold Freshwater habitat waters support cold water ecosystems,
BIOL Preservation of Biological Habitats of Special Significance waters support designated areas of
habitats.
WILD Wildlife Habitat waters support wildlife habitats that may include but are not limited to the
preservation and enhancement of vegetation and prey species used by waterfowl and other
wildlife.
RARE Rare, Threatened or Endangered Species (RARE) waters support habitats necessary for the survival
and successful maintenance of plant or animal species designated under state or federal law as
rare, threatened or endangered.
MUN Municipal and Domestic Supply waters are used for community, military, municipal or individual
water supply systems. These uses may include but are not limited to drinking water supply.
AGR Agricultural Supply waters are used for farming, horticulture or ranching. These uses may include,
but are not limited to irrigation, stock watering, and support of vegetation for range grazing.
IND Industrial Service Supply Waters are used for industrial activities that do not depend primarily on
water quality. These uses may include, but are not limited to mining, cooling water supply,
hydraulic conveyance, gravel washing, fire protection and oil well depressurization. -
PROC Industrial Process Supply waters are used for industrial activities that depend primarily on water
quality. These uses may include, but are not limited to, process water supply and all uses of water
related to product manufacture or food preparation.
NAV Navigation waters are used for shipping, travel, or other transportation by private, commercial or
military vessels.
POW Hydropower Generation waters are used for hydroelectric power generation.
Comm Commercial and Sportfishing waters are used for commercial or recreational collection of fish or
other organisms.
EST Uses of water that support estuarine ecosystems including, but not limited to preservation or
enhancement of estuarine habitats, vegetation, fish, shellfish or wildlife.
Ass hown @n �'aht 410 Sr a � �4 L� $,LILL aLl �r7 e l ; � i �� 13 �t: ; rcneficial
. _. s .rr __. _ _ ;
sues for San Gabriel River, San GabrieESLUary and the San Gabriel Central Groundwater Water Basin,
Study Area Surface Water Body Beneficlal Uses
MUn�cipal and Domestic Supply
R1L£N
X P
NL
X
Na0 ation
NAB°
NL NL
X
Nl
Cornet rcW and Spar* Lwsi�OMrR
1 tR 1
N L NL l
X
NL
EStUarine Habitat
EST
NL NL
X
NL
Habitat p. �
Marine 8 7 d� @.4g
� L
�
V !
VAR
q 1$ 41
g ".
tl V L �� yy
VL
X
NL
Ground Recharge
G R
Ni- i
NL
NL
Agricultural Supply
AGR
NL NL
L.
X
industrial Service Supply
iND
N L P
X
X
industria9 Process Suppa y
PRL)(e
NL P
NL
NL
Water Contact Recreation
REC 1
X X
X
NL
Non contact grater Recreation
REC 2
X X
X
NL.
Wam Freshwater habitat
'a`,tARM
X_,
NL.
- y NL
W lulife Habitat
OLD
X X
X
N`..
Rara l lareatened, or Endangered
S'pecie.s
RARE
NL X
X
NL
Migration of Aquatic Organisms
p
�.� Nti� R
NL NL
X
NL
Spawning Reproduction, sand/or
Early Development
SPUUN
NL NL
X
NL
Shellfish Harvesting
skfCLL
NL NL
PNI
Wetland Habitat
WET
NL N `,
NL
N'
ALI!rra"=errat.srs; NL N+ct LcteR; X- Present or Poteriiiai
Use, i' htcrrr,ittent Beneficlal Use
Source: " iC1'i C)C rpir`k Water Boards,Waler(luafity i"otiiita(1-scii# f)i hiss: Los Angeles Region Basin,
Water Quality Objectives
The Basin Man establishes water quality objectives to ensure the protection of beneficial uses. The water
quality objectives for project area water bodies are shown in
Table 4.10-4
San Gabriel River Estuary NIL
NL
NI_
NL NIL
NIL
NL
NL Not Listed, (z)Five year moving Average
Concentrations ioUnits ofMilligrams Per Ute,
Abbreviations: TDS~Total Dissolved Solids, HARD =
Hardness, Na—
Sodium, m~
Nitrogen, C1~
Chloride, SOr,~Sulfate,
aOD~Biochemical oxygen Demand
Source: California Water Boards, Woter Quolity Control Planfor the
a) Violate any water quality standards or waste discharge requirements or otherwise
substantially degrade surface or ground water quality?
Less Than Significant Impact With Mitigation Incorporated: As shown in the above tables, the Basin
Plans identifies 303 (d) Impaired Water Bodies, Beneficial Uses and Water [Wa|ity Objectives for surface
water bodies and the groundwater basin within the study area. The following analysis evaluates if the
proposed project would further impair any listed 303 (d) Impaired Water Bodies or conflict with beneficial
uses and water quality objectives established in the Basin Plan.
BENEFICIAL USES
During construction there would be the potential that degraded surface water runoff could be generated
from the construction sites and conveyed into local drainage facilities, which could conflict with beneficial
uses established for project area receiving surface water bodies. Depending onthe constituents in the
surface water, the water quality of surface water bodies and downstream surface water bodies could be
reduced. The proposed project would disturb more than one acre of area and would be subject to SWRCB
Order 2009-009-DWQ and would be required to obtain a State General Construction Permit. In accordance
with the State General Construction Permit, a SWPPP would be required to be prepared and implemented.
Best Management Practices would be identified to minimize degraded surface water runoff impacts. Such
measures could include placement of sandbags, and waddles near drainages, use of rumble racks or wheel
washers or other measures to avoid sediment transport. Additionally, the proposed project would be
required tufile a Notice uf|n1ent10the StonnwaterReportTr ckinQSystemandobtainaVVasteDischarger
Identification number from RVVO[B With the implementation of Mitigation Measure HVV[\1, potential
construction related stormwaterimpacts would beless than significant.
The long-term operation of the proposed project would generate surface water runoff that could contain
pollutants that could conflict with project area surface water beneficial use. The proposed project would
be required to comply with the Los Angeles RVVQ[8 Long -Term Post Construction Stormwmter
requirements (Order No. R4-2012-0175), which requires the City of Downey to adopt a green street policy.
shownAs thprp are no water quality objectives est blished for
the San Gabriel River, San Gabriel River Estuary or for the CenLral Groundwater Basin, Therefore,
implementation of the proposed project would not have the potential to conflict with Basin Plan water
quality objectives.
SECTION 3B(D)IMPAIRED WATER BODIES
The 008 identifies San Gabriel River Reach 1, San Gabriel River Reach 2 and the San Gabriel River Estuary
as impaired water�bodies. During construction and operation'of the'proposed project,
there would be the
potential that degraded Surface water runoff COUld be generated and conveyed to the project area surface
water bodies. Depending on the constitutes in the surface water, existing impaired water bodies could be
further 'Impaired, T he proposed project would comply with RWQ�CHD 'Nequirt-n-it-Ats for the managernent of
construction related stormwater runoff and post construction stormwater runoff. Compliance with RWQCB
requirements would avoid further impairment ufimpaired water bodies within the study area.
~ Mitigation Measures:
HVVQ-1: Prior tothe start ufconstruction, the proposed project will obtain coverage under the General
Construction Permit bythe SVVR[Band incompliance with the permit shall file 'a[Notice of
intent with the NVVn(-&�nd prepareand imp|ementa QVVPPP�
b) ,Substantially decrease
-groundwater
- supplies'interfere
bstaiallywith 'groundwater
recharge such that the project may impede sustainable groundwater management of the
-basin'
No|—� The project area overlies the Central Basin Groundwater Basin, The proposed project would
not involvethe extraction ufgroundwater orinvolve any activities that would interfere with groundwater
recharge activities.
Mitigation Measures: Nwmitigation measures are required.
—c) Substantially alter the existing .drainage pattern xofthe site or area, including through
alteration of the course of astream orriver orthrough the addition mfimpervious surfaces,
I ) Result in substantial erosion or siltation on- or off -site?
Less Than Significant Impact With Mitigation Incorporated: Construction operations for the
prnpnspd pnnjprtmmu|d Involve exzavation and grading activities that Would expose soils. The
exposed soils could be subject to erosion impacts caused by water and wind, Additionally,
construction equipment and vehicles could indirectly transport sediment to offsite locations. The
project would disturb at least one acre of soil and would be subject to the SWRCB Order 2009-009-
DWQ and would be required to obtain coverage under General Construction Permit by the
WVRCB. The General Construction Permit would require filing a Notice of Intent to the Stormwater
Report Tracking System and obtain a Waste Discharger Identification number from the RWQCB and
the preparation of SVVPPP. With the implementation of Mitigation Measure HVV[L2, potential
erosion impacts would baless than significant.
Mitigation Measures: Mitigation Measure HWQ-1 is required,
2) Substantially increase the rate or amount of surface runoff in a manner which wouNi
result in flooding on- or off -site? I
Less Than Significant Impact: The proposed project would not increase the overall amounts of
impervious surfaces within the project area. Therefore, existing rates of surface water runoff would
not increase over the current condition.
Mitigation Measures: Nomitigation measures are required.
3) Create or contribute runoff water which would exceed the capacity of existing or
planned stomnxvaterdra|nage systems or provide substandal additional sources of
po||ubedrunoff7
Less Than Significant |mmpactTheproposedpnojectinvolvestheen|argingofLhecurb-netunnsst
each of the four corners of the intersection and the slight widening of the easterly side of Lakewood
Boulevard on both sides of the intersection and the southside of Florence Avenue between
Lakewood Boulevard and Arrington Avenue, The physical improvements to the intersection would
require that two catch basins and a portion of their connecting lateral storm drains be demolished
and reconstructed in -kind. The first catch basin is located on the southerly side of Florence Avenue,
just west of the intersection. The second catch basin is located on the easterly side of Lakewood
Boulevard, just north of the intersection. The project would replace both catch basins with facilities
of equal ofslightly greater capacity. Both connecting laterals would be replaced with equal -sized
reinforced concrete pipe configured to meet the Los Angeles County Department ofPublic Works
standards.
Under existing conditions, drainage on Florence Avenue, west of the intersection flows easterly
towards the intersection, Prior to reaching the intersection, flow is intercepted by two catch basins
located on the northerly and southerly sides of the street. F|nvv on the easterly side of the
intersection flows to the east in the Florence Avenue gutters away from the project area.
Flow on Lakewood Boulevard, north ofthe intersection, flows southerly towards the intersection.
Flow on both the easterly and westerly sides of the street is intercepted by catch basins prior to
reaching the intersection. South of the intersection, runoff flows to the south away from the
intersection. Flow that is intercepted by the catch basins is conveyed to a mainline storm drain
system identified as Line B ofMiscellaneous Transfer Drain (MTD) No. 0641. This designation
indicates that the storm drain is owned and maintained by the Los Angeles County Department of
Public Works. The upstream end of this storm drain is located on Florence Avenue, west of the
pro�ect area, at the approximate location of the Birohda|e Avenue intersection with Florence
Avenue. The storm drain continues to the east through the intersection and terminates at its
junction with Los Angeles County Department of Public Works Line A. Flows intercepted at the
project intersection ultimately discharges into the San Gabriel River.FE�� /�e___PlO_LC_Ct�
depicts the location of the existing storm drain and the existing condi1ions of
_4-PROJECT.,,
PROJECT LOCATION
$' 1„ b: '�"ATC ASINS .gip
Ltd„ n�y �
J�r 3I'v°�
f''
' mY 1 ,gym
N1 T 7a
7
k
( -N.T. w LEGEND
FLOW DIRECTION
�Y
(1.9 CATCH q 0,.,.
Source: BU Engineering; April 2020..
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION
IMPROVEMENT PROJECT (CIP NO, 19-07)
Initial Study/Mitigated Negative Declaration
Pre -Project Drainage Facilities
U(S Environmental Figure 4.T9-1
The proposed intersection improvements would not alter the pre -project drainage patterns.
Existing flows within the project area would continue undiverted and unobstructed under post -
project conditions. The slight widening of the southerly side of Florence Avenue would not create
any additional area tributaryto the existing storm drain facilities. The widenings would result inthe
conversion of a small of area from landscaped pervious cover to an impervious surface. However,
the total area of the converted landscaping would be estimated to be less than a tenth of an acre.
Therefore, the project would not have any significant impact on pre -project flow rates tributary to
the existing storm drain facilities within the project area.
The physical improvements to the intersection would require that two catch basins and a portion
of their connecting lateral storm drains be demolished and reconstructed in -kind. The first catch
basin is located on the southerly side of Florence Avenue, just west of the intersection. The second
catch basin is located on the easterly side of Lakewood Boulevard, just north of the intersection.
The project would replace both catch basins with facilities of equal of slightly greater capacity. Both
connecting laterals would be replaced with equal -sized reinforced concrete pipe configured to
meet Los Angeles County Department of Public Works standards. Based on a comparison of the
pre -and post -project drainage patterns, the project would not exceed the capacity ofexisting or
planned stormwater drainage systems or provide substantial additional sources of polluted runoff
and potential impacts would be less than significant.
No Impact: The project area is not included within a flood zone. Therefore, implementation of the
proposed project would not impede or redirect flood flows. As pad of the hydrological analysis
prepared forthe project, it was determined the post construction stormwater management system
would be adequate for stormwaterOows conveyed through the project area. Implementation of
the proposed project would not involve the construction of any structures that would impede flood
flows.
Mitigation Measures: No mitigation measures are required
d) In flood hazard, tsunami, or seiche zones, risk release of pollutants due to project
inundation?
Less Than Significant Impact: The City is not within a tsunami runup area or within a seiche zone. The City
lies within the flood inundation area of the Whittier Narrows Dam and could be subject to flood risks and
the potential release ofpollutants that may be generated from flood flows. The "Whittier Narrows" is a
natural gap in the hills that form the southern boundary of the San Gabriel Valley. The Rio Hondo and the
San Gabriel rivers flow through this gap and are impounded by the reservoir. The Whittier Narrows Dam is
currently classified by the U.S. Army Corps of Engineers as DSA[ | rating. The DSA[ | rating indicates that
the U.S. Army Corps of Engineers considers the incremental risk to be very high. The DlA[ | rating also
identifies the dam as one of the highest priority dam safety projects for the U.S. Army Corps of Engineers.
The U.S. Army Corps of Engineers has prepared a Dam Safety Modification Study that has identified a
recommended mitigation plan to reduce the threat ofinundation. The recommended plan prevents the
earthen dam from eroding and failing when overtopped by placing roller compacted concrete on the crest
and downstream slope of the embankment, The plan prevents failure due to erosion underneath the dam
by adding additional seepage control features (e.8, trench drains, relief wells and graded filter/drainage
b|ankets)1oaUowthesafedissipationofsubsurfacepressuresvvhichwou|dbetheresu|tofunusuaUy|arge
pools. Construction is anticipated to start in 2021 with completion in 2025. Implementation of the proposed
project would not increase the risk for flood inundation or increase the risk for release of pollutants from
flooding. Additionally, the proposed project would not involve the construction of any facilities that would
conflict with flood control improvements proposed forthe Whittier Narrows Dam. Potential flood hazards
would be less than significant.
Mitigation Measures: Nomitigation measures are required
e) ofa[water control plan or sustainable -
-n�u���� ' M� —
groundwater
Less Than Significant Impact: Implementation of the proposed project would not conflict with Los
'
Angeles Region Ba| Plan beneficial stabU h d for receivingwater bodies and would
��-'~-'�� benot conflict with water quality objectives or further impair and existing impaired water bodies.
The California Sustainable Groundwater Management Act (SGMA) was passed in 2014. The law provides
increased authority for local agencies to manage groundwater and requires that most groundwater basins
under sustainable management within 20 years in a manner that would be maintained without causing
undesirable results. Undesirable results include, chronic lowering of groundwater levels indicating a
significant and unreasonable depletion of supply, reductions ingroundwater storage, seawater intrusion,
degraded water quality, 'land subsidence, and surface water 1depletions that have adverse impacts on
beneficial uses. Implementation ofthe proposed project would not involve any activities that would reduce
underground water supplies that would affect the sustainability of groundwater supplies.
Mitigation Measures: No mitigationmeasures are required.
Less Than Significant Impact With Mitigation Incorporated: The project area is located within a
commercial corridor and composed of a variety ofgeneral commercial land uses. The proposed roadway
widening would require right-of-way acquisition along northbound and southbound Lakewood Boulevard
westbound Florence Avenue, Additionally, partial right-of-way acquisitions and temporary construction
easements (TZEs) would be required for the northeast southeast and northwest quadrants of the project
area. The partial right-of-way acquisitions and T[E's required for the project are shown in fiuLe 4.11-1,
PARTIAL R|GHT'OF4WAYACQUISITIONS
The proposed project would require approximately 3,501 square feet of partial right-of-way
acquisitions to
allow for the roadway widening of Lakewood Boulevard and Florence Avenue. The potential right-of-way
acquisitions would occur within the northeast,
southeast and northwest quadrants of the
project; refer to
Table 4.11-1
Partial Right-of-WayAcquisitions
LAKEWOOD BOUI-EVARD AND FLORENCE IN-rERSECTION
MPROVEMENT PROJECT (CIP NO19-07)
Intal'Study/Mitigated Negative Declaration
Partial Right-o-f-Way Acquisitions andI-emporary ConstrUction Easements
V(S Ervirmmantal Figure 4.11 -1
0NEVVO00BOULEVARD AND FU0ENCEINTERSECTION UNPROVEWNTPRU83KIP NO, 1907
Northeast Quadrant: The proposed roadway widening would occur along northbound Lakewood Boulevard
and westbound Florence Avenue. The existing right-of-way on Florence Avenue would be mowed
approximately seven feet to the northly direction due to the addition of the proposed dedicated right turn
lane. The existing right-of-way on Lakewood Boulevard would be moved approximately three feet to the
easterly direction to accommodate the proposed dual left turn pockets on Lakewood Boulevard. The
following two properties would be impacted: 10030 and 10000 Lakewood Boulevard. The City of Downey
currently has a 10-hootdedication in an agreement with AR[U.The radius ofthe curb return has been
modified from 25 feet to 45 feet. This would impact the landscaping and irrigation along the frontage of
the AR[OStation.identifies the amount of partial property acquisition for each property and
the portion ofthe building site that would beaffected.
Southeast Quadrant: In this quadrant right-of-way acquisitions would be necessary to construct the
proposed improvements. Based on the incorporation of the new northbound left turn, there are three
properties on the eastside of Lakewood Boulevard that would be impacted: 9026, 10208, 10220 and 10226
Lakewood Boulevard. The existing right-of-way on Lakewood Boulevard would be moved approximately
three feet in the easterly direction to accommodate the proposed dual left turn pockets on Lakewood
Boulevard. identifies the amount of partial property acquisition for each property and the
portion ufthe building site that would beaffected.
Northwest Quadrant: Right-of-wayacquisitionvvuu|d be required to accommodate the increase of radius
of the curb return from 25 feet to 40 feet and the new ADA curb ramp. One property at 10037 Lakewood
Boulevard would be impacted. The area of the partial take is anticipated to be approximately 70 square
feet. identifies the amount ofpartial property acquisition for each property and the portion
ofthe building site that would beaffected.
As shown in the amount of partial property acquisition at each property would be minimal.
The partial property acquisitions would impact and reduce the size of the existing landscaping, planters and
sidewalks within the project area. The reduced amount oflandscape area and sidewalk area would not
create any nonconforming properties and would not affect access to site. All landscaping areas impacted
by the proposed project would be replanted and restored to match existing landscaping on the building
site. The City vxmu|d coordinate and come to an agreement with each affected property owner on the
acquisition of right-of-way property and would ensure that potential construction activities do not have a
significant effect on the operation of the existing business. With the implementation of Mitigation
Measures LU-1 and LU-2, potential land use impacts would less than significant.
TEMPORARY CONSTRUCTION EASEMENT
A total of7'GG5 square feet of temporary construction easements would be needed for the proposed
roadway improvements. Within the temporary construction easement areas, construction activities would
temporarily impact the existing landscape, planters and sidewalks. Once construction operations are
completed, all temporary disturbed areas would be returned to their pre-existing condition. Because the
temporary disturbed areas would be returned totheir original condition, temporary impacts would be less
than significant.
Construction activities associated with the proposed project could impede vehicle and pedestrian access
to existing land uses. Prior to the start of construction activities, property owners within the vicinity of the
project area would be notified of the proposed construction activities. Additionally, during construction, a
Traffic Control Management Plan would be implemented tofacilitate vehicle and pedestrian access to
existing land uses. With the implementation of Mitigation Measures LU-3 and LU-4, potential temporary
land use impacts eou|d be less than significant.
Administrative Draft 1July 2020 411 -3 LandUsp dndPlannin
g
Mitigation Measures:
'LU'1: Prior toimpacts City 'v�Uco�rdiMateand come toanagreement with
� the urop'--owner onthe acquisition
p^--e'- '
, ' LU-2: Prior to impacts to private property, coordination would occur with the business owner to
ensure that potential construction activities would not have a significant effect the operation
of the business.
LU-3: Prior to construction, a community outreach program will be implemented to inform the
� .^ _-community about the project construction activities.
�--[U-4: Prior to the start of construction
activities, a Traffic Control-_n-"__- Plan —ill' be prepared_ .�
and implemented,
b) Cause a significant environmental conflict with any and use plan, policy, orregulation adopted for the purpose of avoiding or mitigating an environmental effect?
Less Than Significant Impact: The relevant planning program for the proposed project would bethe City �
of Dovvney's Circulation Element. The Circulation Element designates -both Lakewood Boulevard and
Florence Avenue as majorrteh | roadways and identifies needed intersection improvements at the
intersection ofLahe~cod' nnd Florence -- Avenue. 'd�ional|~the [�vofDoxvn-`{General Plan
identifies several policies supporting the proposed project. A listing'Boulevard' -^ cfthose policies relevant tothe
proposed �-"project
'are 1denti�e6belovv!
* Policy 2,1.1: Maintain a street system that provides safe and efficient movement of people and
goods. '
~ Program 2.1.~15'Widenstreet MQ'nz-*-of�-w�a'ya�&n' ece-s-s�ar- ya�ndco^ nsiste'ntv-/'t`n`prov'ld~rm'-ga h'adequate ^ ^
level of
-
'° .Program 2.1l6: Encourage appropriate turn lane and other operational improvements at major
arterial intersections identified ascongested. �
The proposed project would be consistent with the City's Circulation Element, in that it would improve the
operation of the intersection by adding double left turn lanes north and south of the intersection for
Lakewood Boulevard and o right turn lanc east of the intcrsection for Florence Avenue. Additionally, the
proposed project would be consistent with the Cib/sGenena| Plan Circulation Element Policies and
Programs. No adverse impacts would occur regarding potential conflicts with the [it/s General Plan
Circulation Element.
Mitigation Measures: No mitigation measures are required.
LAKEWOOD BOULEVARD AND ;LDQEN(C|NTER5ECTON|MPRU08NCNITP8O87((|PN0,l9-Q7
4.12 Mineral Resources
ENVIRONMENTAL ANALYSIS
a) Result in the loss of availability of a known mineral resource that would beofvalue to the
region and the residents mf the state?
No Impact: According to the City of Downey General Plan, there are no commercially viable sand and gravel
resources in the City. Therefore, implementation of the proposed project would not result in the loss of a
mineral resource that would have value to the State.
Mitigation Measures: 0omitigation measures are required.
b) Result in the loss of availability of a local |y-)rnportant mineral resource recovery site
delineated onalocal general plan, specific plan orother land use plan?
NwImpact: The City ofDowney General Plan does not identify any locally -important mineral resource
recovery sites in the City. Therefore, no impacts to locally important mineral resource recovery sites would
beassociated with implementation ofthe proposed project.
Mitigation Measures: Nomitigation measures are required.
This page intentbnally left blank,
lackground
NOISE LEVELS
Noise level (or volume) is generally measured in decibels (d8) using the A -weighted sound pressure level
(dBA). The A -weighting scale is an adjustmentto the actual sound pressure levels to be consistent with that
of human hearing response, which is most sensitive to frequencies around 4,000 Hertz (about the highest
note on a piano) and less sensitive to low frequencies (below 100 Hertz). Sound pressure level is measured
on a logarithmic scale with the O B level based on the lowest detectable sound pressure level that people
can perceive (an audible sound that is not zero sound pressure level). Based on the logarithmic scale, a
doubling of sound energy is equivalent to an increase of three dBA, and a sound that is 10 dBA less than
the ambient sound level has no effect on ambient noise. Because of the nature of the human ear, a sound
must be about 10 dBA greater than the reference sound to be judged as twice as loud. in general, a three
dBA change in community noise levels is noticeable, while a one to two d8 change is generally not
perceived. Quiet suburban areas typically have noise levels in the range of 40-50 dBA, while arterial streets
are inthe 5O-G0+dBArange.
SOUND ATTENUATION
Noise levels typically attenuate (or drop off) at a rate of six dBA per doubling of distance from point sources
(i.e., industrial machinery). Additionally, noise levels may also be reduced by intervening structures;
generally, a single row of buildings between the receptor and the noise source reduces the noise level by
about five dBA, while a solid wall or berm reduces noise levels by approximately seven dBA. The manner in
which older homes in California were constructed (approximately 30 years old or older) generally provides
a reduction of exterior -to -interior noise levels of about 20to 25 dBAvvith dosed windows. The exterior -to -
interior reduction ofnewer residential units and office buildings construction to California Energy Code
standards is generally 30 dBA or more (Harris, Miller, Miller and Hanson, 2006).
N0SEK4ETK|CS
`One of the most frequently used noise metrics that considers bothduration and sound 'Power level the
equivalent noise level (Leci), The Leq is defined as the single steady A -weighted level that is equivalent to
the same amount of energy as that contained in the actual fluctuating levels over a period of time
(essentially, the average noise level). Typically, Leci is summed over a one -hour period, Lmax is the highest
RMS (root mean squared) sound pressure level within the measuring period, and Lmin is the lowest RMS
sound pressure level within the measuring period. The time period in which noise occurs is also important
since noise that occurs at night tends to be more disturbing than that which occurs during the day.
_ Community noise is usuallyasU dusing Day -Night Ave�
---`` — noise
Community Noise Equivalent Level (CNEL), which is the 24-hour average noise level with a five dBA penalty
ior noise occurring from 7:00 PM to 10:00 PAI and a 10 dBA penalty Foi noise occurring frorn 10:00 PM to
7:00 AM, Noise levels described by Ldn and CNEL usually do not differ by more than one clB. Daytime Led
levels are louder than Lain or[NELlevels; thus, ifthe Leqmeets noise standards, the Ldnand CNELare also
met.
Regulatory Programs
FEIDER4L
The Federal Noise Control Act (lg7Z)addressed the issue ofnoise asathreat nohuman health and welfare.
To implement the Federal Noise ConLrol Act, the U,S, Environmental Protection Agency (IPA) undertook a
number ofStudies related to community noise in the I970s. The EPA found that 24-hour averaged noise
levels |essthan 70 dBAvvou|d avoid measurable hearing loss, !levels of less than 55 d8A ou1doors and45
^dBAindoors Would prevent activity interference andannoyance (EPA 1972). TheU.S. f^
Housing and Urban Development (HUD) published a Noise Guidebook for use in implementing the
�~ Department's noise policy. In general, HUD's goal is exterior noise levels that are less than or equal to S5
d8ALdn.The goal for interior noise levels |s45dBALein,
— —�Title Z4ofthe California Code mfRegulations (CCR) establishes standards governing interior noise levels
that apply to all new single-family and multi -family residential units in California. These standards require
that acoustical studies be performed before construction at hu|ldUnp locationsvvhere �h� ex�tnq Ldn
exceeds 60 d8A. Such acoustical studies are required to establish mitigation measures that will limit
maximum Ldn levels to 45 dBA in any habitable room. Although there are no generally applicable interior
noisestandardspertinenttoaUuses,manycommun|ties|nCahforniahaveudop1edoLdnof4Gasanupper
UmiLon interiornoisz in oU rosidcntia| un|ts.
In addition, the State of California General Plan Guidelines (OPR 2003), provides guidance for noise
compatibility. The guidelines also present adjustment factors that may be used to arrive at noise
acceptability standards that reflect the noise control goals of the community, the particular community's
sensitivity to noise, and the community's assessment of the relative importance of noise pollution.
CITY OF DOWNFY
City of Downey Noise Ordinance
The City of Downey requires new projects to meet exterior noise level standards as established in Section
4605.3 of the [it/s Municipal Code Noise Ordinance,
identifies the maximum a I Iowa ble noise level for diff ere nt land uses in the City for certain hours
ofthe day.
Table 4.13-1
Residential 55db (A) 45db(A)
Commercial 65db(A)
1, If any parcel of real property is developed and used for multiple land uses, the lower land use noise level standard
shall apply.
2. In the hours between 7:00 AM to 10:00 PM, the noise levels permitted may be adjusted by the inclusion of the
following factors when applicable:
* Noise source operated 12 minutes per hour or less +5db(A)
* Noise Source operated 3 minutes per hour or less + lOdB(A)
* Noise source opLrLted 1 minute per houror less 15dB.(A)
The City ufDowney General Plan Noise Bement recognizes that a major concern with noise is its effect on
noise sensitive land uses. Atypical example of noise sensitive land use includes, residences, schools, parks,
hospitals, daycare centers and public assembly areas. Table _4`13-2, City oLpgA��.ercd Pion Noise
identifies maximum interior and exterior noise levels established in the
City ofDowney General Plan Noise Element.
Table 4.13-2
City ofDowney General Plan Noise Element Acceptable Noise Levels
Additionally, the Noise Element identifies goals and policies to reduce noise impacts on the public. Below
are noise management goals, policies and programs that would be relevant to the proposed project:
° Goal 6.1: Protect persons from exposure to excessive noise.
• Policy 6,11: Minimize noise impacts onto noise -sensitive uses.
° Program Gl1.1: Enforce noise standards.
= Program 611.3: Continue toenforce provisions prohibiting construction activities during noiae-
sensitive.
• Policy 6Z1:Reduce noise generated byvehicular traffic.
Vibration Standards
Vibration is a unique fonnofnoise as the energy is transmitted through 'buildings, structures and the '
ground whereas audible noise energy is transmitted through the air. Thus, vibration is generally felt rather
than heard. The ground motion caused by vibration is measured as particle velocity in inches per second '
d is referenced as vibration decibels (VdB), The vibration velocity level' threshold
~ //wmm/s is app/vmm*`e/v 65 VdB. A vibration velocity of 75 VdB is the approximate dividing line between
barely perceptible "and distinctly perceptible levels.�
-There are severaldifferent methods that are used to quantify. �� ~ �
^-- rA-~ �~
------- -)n�ununcou�puymnunev/oeoonsvemc�y,�nm.,i~.novvnasznepeampamoe'msmcity(p,V)jpresently,---- -- ---^�
there is not a local threshold that quantifies the level at which excessive groundborne vibrationoccurs. The
California Depariment
~ Trans por�fon(ra|frans)issued the --
�@bnonon Guidance Manual in '�n4�Thi�`rnanua|�rovdesr+ic�| ldznceto�rabr nsen-|'� —
.ou�u' -� � provides practical guidance ur engineers,
planners, and consultants who must address vibration issues associated with the construction, operation,
and maintenance of Caltrans projects, This manual is also used as a reference point by many lead agencies
and [EDA practitioners throughout California, as it provides numeric thresholds for vibration impacts,
Thresholds are established for vibration, which found that the human response becomes distinctly
perceptible at 0,25 inch per second PPV, The manual identifies that potential clamage could occur at the
1.0 inch per second PPV thresi-lold to residential structures and the 2.0 inch per second IDPV threshold for
potential damage toindustrial and commercial structures,
PROJECT IMPACTS
III
IG-Jeneration ollasubstantial
vicinity uw.the ^project /,'excess of standards established nmthe local |general plan «ornoise ,
^ordinance, or applicable standards nfother agencies?
Less Than Significant Impact With Mitigation Incorporated:
PERMANENT NOISE IMPACTS
— Thed |d h Vehicle FLhee — �
generate new vehicle capacity that would increase noise levels within the project area. The proposed /
project would Increase the operation efficiency of the Lakewood Boulevard and Florence Avenue '
intersection, which could result in less vehicle queuing and idling along Lakewood Boulevard and Florence ,
Avenue and a lowering of exi-sting noise level baseline ambient conditions, No impacts regarding permanent
increase in noise levels would beassociated with implementation ofthe proposed project. �
�
The main SourceS of noise during construction activities would include heavy machinery used during site
preparation (ie, removing existing pavement and subgrade), as well as equipment used for placing new
subQrade material and pavement. shows the
typical noise levels associated with heavy construction equipment, As shown in average noise
levels associated with the use ofheavy equipment z1construction sites can rangefromabout 8l10 95 dBA
at 25 feet from the source, depending upon the types of equipment in operation at any given time and
phase ofconstruction,
Table 4.13-3
Typical Construction Equipment Noise Levels
01 (6A)�25-
T, 01;5 ' `
_V
to,
Fe'et. M"'t 6,�
Teot� 04 "O"So rc
I'll, � "
m rce
Air Compressor
84
78
72
Backhoe
84
78
72
Bobcat Tractor
84
78
72
Concrete Mixer
85
79
73
Bulldozer
88
82
76
Jack Hammer
95
89
83
Pavement Roller
86
80
74
Street Sweeper
88
76
Man Lift
81
75--
69
Dump Truck
82
76
70
Compactor
88
82
76
91
85
79
-,Grader
Paver
95
89
83
Loader
91
85
79_
Scarifier
89
83
77
Notes:
Noise levels based on FHWA Roadway Construction Noise Model (2006) Users Guide Table 1.
Noise levels based on actual
maximum measured noise levels
at 50feet (Lmax).
Noise levels assume a noise
attenuation rate of 6 dBA per doubling of distance.
Source: Hanson, Towers and Meister, May 2006,
I P 2-imint jot nf tr,2ffi
construction activities tor tMe proposeci projec wouil gener.11 , -1— — LI 1177==7 7=777-7 W-FaYn 9W
approaches to the Lakewood Boulevard and Florence Avenue intersection. As shown in Table 4.13A
f���Mp , within the surrounding area there is a mix of single-family and mull
family noise sensitive land uses. Based on EPA noise emissions, empirical data and the amount
equipment needed for construction of the proposed project, worst -case noise levels from the constructi
equipment would occur during site preparation/grading and related activities. The anticipated equipme
backhoeJLaLt.Q_r_, loader and a -grader. Additionallil, trul - J1
be used to haul material to and from the work area. Construction operations are expected to occ
continuously over the workday. Forthe purposeof estimatingnoise levels during site preparation, if a pavr.,
(95 dBA), bulldozer (88 dBA), a loader backhoe (91 dBA) and a dump truck (82 dBA) were worki
simultaneously in one area over an eight -hour work day, the eight -hour Leq would be approximately
iN"0w'*, Dwit. Table 4.13-4 below estimates the temForary� noise level based on the distance between tI_
sensitive receptor and the proposed construction activity. To be conservative, construction activities we
t�-!Mriffikccurwithin a 1.50-footto 500-footsegment of Lakewood Boulevard and Florence A -
both directions.
Tabie 4,13-4
Estimated Temporary Noise Levels
Florence Avenue east Lakewood Boulevard MUlti-Family Residential 350 72
I Assumes a seven dEw reduffon from existing biork v;L11,
2, Assumes a five, dBA reduc:ticn when existing structures [ocated beloveen sensitive receptor
Aashown above, the estimated temporary noise |evebwou|d rangefrom G2db(A)to72db(A).Presently,
the i3r��tarea experiences high levels oftraf�onoise.VV�hthe e�otingbackground trafMcnoise oczurhn8
inthe projectarea, the estimated increase innoise fromthe project construction activity would most hke|V
not be d|soernab|e,/\dd|tio� n�U\\ as referenced, City of not regulate construction noise
provided it occurs within a 12-hour period of time between 7:00 AM and 7/00 PM each day, The proposed
project construction activities would occur between thehours of7�0OAK8and 7�O0PK4and therefore, the
temporary construcflon noise impacts would be considered less than significant. To rninirrke noise impacts
during construction, Mffigat�on Measures N-1, N-2 and N-3 would be implemented,
Mitigation Measures:
'
' N-1:- ReqUire that construcLion equipmentLiUUze noise reduction =rsand engine
shrouds) that are noless effectivethan those originally instaUedby-the nna�� n�crer�
' - ~N2Prnhibit the start -Up of heavy constrUCtion before 7:00 AM,
N-31- Require that haul truck deliveries be subject to the sarne hours specified for construction,
�b}'Generationof nd borne vibration- or groundberne--noisehevels?�
Less Than Significant Impact With Mitigation Incorporated. The operation of Lhe proposed project
' would not generate additional vibration impacts within 1he project area. The construction activities
associated with the proposed project vvou|d have the potential to generate vibration impacts in the
localized area, hatconatruct|on
equ|pmentcou|dreach 8IVdBat5Ofeet and 87VdBat3Ofeet fromthe sourceassumin8olarge buUdozer
is used duhn8 site preparation, With respect to ground -borne vibration impacts on structures, the FTA
sLatesthat ground -borne vibration levels in ewceasof1[0VdBwmu|d damagefragi|e bui|d|ngsand levels in
excess of5BVdD,Asshown |n potential vibration levels are riot es1|mated10exceed 1OOVdB,
Additionally, |mp|ementa�ionof�heoonatruot|onnoise control Measures identified in Mitigation Measure
N-1 wou|d reduce vibration levels, With the implementation of Mitigation Measure N-2, temporary
vibration impacts would be less than significant,
Table 4.13-5
Vibration Source Levels for Construction Equipment
Large Bulldozer 87
81 11
79
77
75
Loaded Trucks 86
80
78
76
74
Jackhammer 79
73
71
69
67
Small Bulldozer 58
52
50
48
46
Source: Federal Transportation Administration, 2018.
Mitigation Measures: Mitigation Measure N-1 is required.
c) For a project located within the vicinity of a private airstrip or an airport land use plan or,
where such a plan has not been adopted, within two miles of a public airport or public use
airport, would the project expose people residing or working in the project area to excessive
is levels?
No Impact: The closest airport to the project area would be Long Beach Airport, located approximately 10
miles to the south. The project area site is not within an airport influence area and not included with an
airport land use compatibility plan that identifies elevated levels of aircraft noise impacts. Therefore, the
project area would not be subject to excessive noise levels from overhead aircraft.
-;,re rp-tuirei.
\
4.14 Population and Housing
ENVIRONMENTAL ANALYSIS
a) induce substantial unplanned population growth |nanarea, either directly (for example, by
proposing new homes and businesses) or indirectly (for example, through extension of
roads or other infrastructure)?
No Impact. The Southern California Association of Governments (S[AG) is the largest K4e1nzpo|Kan
Planning Organization (MP0 in the nation, with more than 19 million residents. The S[AG region includes
six counties (imperial, Los Angeles, Orange, Riverside, San Bernardino, and Ventura) and 191 incorporated
cities. In ZOOB, l[AG initiated the Local Profiles project as a part ofa larger initiative to provide a variety of
new services to its member cities and counties. Through extensive input from member jurisdictions, the
inaugural Local Profiles Reports were released atthe SQ\G General Assembly in May 2009. The Local
Profiles have since been updated every two years. The Local Profiles Reports provide a variety of
demographic, economic, education, housing, and transportation information for each memberjurisdiction.
The population and housing data for the City of Downey and County of Los Angeles are shown in Table
The proposed project involves improvements to existing roadways to increase operation efficiency and to
increase the vehicle capacity of the intersecLion. The improvements would not increase the vehicle capacity
or increase traffic volumes within the project area. The project area is currently built out. The proposed
intersection improvements would be consistent with the [ity's General Plan which supports existing
population levels and planned population growth in the City. The project would not extend infrastructure
into any undeveloped areas that would facilitate growth beyond the level of growth projected in the City
of Downey General Plano The project would not generate any permanent employment opportunities that
would ,generate additional housing demands, The construction of the proposed project would generate
short-term construction employment opportunities within the project area that would most likely be filled
from the local area and would not generate need for new housing, public services, or commercial
commerce. Therefore, no adverse population impacts would occur.
Mitigation Measures: No mitigation measures are required.
Displace substantial numbers f existing people or housing, necessitating the construction
f replacehient housing elsewhere
No Impact: Implementation of the proposed project would not involve any full, partial or temporary
property acquisitions that would involve residential properties that would require the need for replacement
housing. Implementation of the proposed project would not displace any housing. Therefore; no
replacement housing would be needed, and no impacts would occur,
Mitigation Measures: No mitigation measures are required.
LAKEW0UOBQULByRD&NDF0RENCE|W,3RSECT|0N|�PRQV8NEN'TPR0]B3(C'1PNW, 79-O',")
4.15 Public Services
a) Would the project result in substantial adverse physical impacts associated with the
provision of new or physically altered governmental facilities, need for new or physically
altered governmental facilities, the construction of which could cause significant
environmental impacts, in order to maintain acceptable service ratios, response times or
other performance objectives for any of the public services:
1) Fire n?
bessThan Significant Impact:The City of Downey Fire Department provides fire protection within
the City. The nearest station to the project area is Station #4, located at 9349 Florence Avenue in
Downey, approximately 0.6 miles southeast of the project area. As a roadway improvement, the
proposed project would not substantially increase the need for fire protection services. During
construction, there could be the potential that existing travel lanes could be reduced, which could
affect response times within the project area. During construction, traffic management controls
would be in place to maintain emergency access response times tothe extent feasible. Potential
effects on fire service protection services would be less than significant.
Mitigation Measures: Nomitigation measures are required.
b) Police protection?
Less Than Significant Impact: The Downey Police Department provides police protection within
the City; it is located pt 10911 Brookshire Avenue, which is located approximately l7 miles
southwest of the project area. As a roadway improvement, the proposed project would not
substantially increase the need for police protection services. During construction, there could be
the potential that the number of existing travel lanes could be reduced, which could affect
response times within the project area. During construction, traffic management controls would
be in place to maintain emergency access response times to the extent feasible. Potential effects
can police protection services would be less than significant,
Mitigation Measures: No mitigation treasures are required.
C} Schools?
No Impact® The proposed project would not directly result in any student generation, as no homes
or other growth inducing uses are proposed. Implementation of the proposed project would not
result in the need for the construction of additional school facilities. Therefore➢ no impacts to
school services would occur.
MitigationMeasures: No mitigation measures are required.
d) Parks?
No Impact: As a roadway improvement, the project would not generate the need for new park
services. Moreover, the project would not directly or indirectly induce substantial population
growth in the project area which could generate needs for additional park services. Therefore, no
impacts to park services would occur.
Mitigation Measures: No mitigation measures are required.
e) Other public facilities?
o Impact: There are no other public facilities that could potentially be affected by the proposed
project. Therefore, no impacts to other public facilities would occur.
Mitigation Measures: No mitigation measures are required.
LAKEWOOD BOUL8A0QANDBO0EN[EINT BS5(Tl0N|MPR0E',VrMITP8NEQ[(JPNO,l9407
nUai
ENVIRONMENTAL ANALYSIS
a) Increase the use of existing neighborhood and regional parks orother recreational facilities
such that substantial physical deterioration mfthe facility would occur or be accelerated?
No Impact: The proposed project does not propose any new residential uses that would increase the use
of existing parks or recreational facilities. Therefore, no impacts to existing recreation facilities and parks
would beassociated with implementation ofthe proposed project.
Mitigation Measures: No mitigation measures are required.
b) Include recreational facilities or require the construction or expansion of recreational
facilities which might have an adverse physical effect on the environment?
No Impact: The proposed project involves the reconstruction and widening of the intersection of
Lakewood Boulevard and Florence Avenue within the City ofDowney. Therefore, no new or expanded
recreational facilities would be required and no adverse physical effects on the environment would occur.
Mitigation Measures: No mitigation measures are required.
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z
0KE'NOOD0OSLB0KDANDF0KEN(1ENTIRSE[OON|IIAPROVINENI'M�}R3(C|PN0,19�7
Id
4.17 Transportation
ENVIRONMENTAL ANALYSIS
The project area includes Lakewood Boulevard and Florence Avenue intersection and extends
approximately 150 feet to 500 feet on the departure sides and 150 feet to 500 feet on the approach sides
of Lakewood Boulevard and Florence Avenue. The intersection is signal -controlled intersection with
Lakewood Boulevard runninDnorth/snuth and Florence Avenue running east/wes1.The surrounding area
is a developed, urban environment surrounded by gas stations, restaurants, retail, and offices. The project
will require partial right-of-wayacquisitions asshown previously in .
PROJECT IMPACTS
a) Conflict with a program plan, ordinance or policy addressing the circulation system,
including transit, roadway, bicycle and pedestrian facilities?
Less Than Significant Impact With Mitigation Incorporated: The most relevant circulation plan for the
proposed project would be the City ofDowney General Plan Circulation Element, The Circulation Element
identifies classifications of roadways in the City and establishes goals, policies and transportation programs
that provide safe and efficient circulation through the City.
The proposed project involves improvements to the Lakewood Boulevard and Florence Avenue
intersection. The Circulation Element identifies both Lakewood Boulevard and Florence Avenue Arterials as
Major Arterials. According to the Circulation Element, Major Arterials serve as through routes for traffic
crossing through the City, Ma]VrArteria|sprovide sixtrave| lanes with a median divider and single ordouble
left -turn lanes atintersections. Both Lakewood Boulevard and Florence Avenue currently consist ofthree
lanes in each direction. Presently, Lakewood Boulevard along the northbound and southbound approaches
and Florence Avenue along the eastbound and westbound approaches to the intersection have single
dedicated left turn lanes. The Lakewood Boulevard and Florence Avenue intersection currently
accommodates�an average daily traff ic (AD F) volume of approximately 72,000 vehicles per day (VPD) with
existing levels of service (LOS) of E and F during the AM and PM peak traffic periods. The traffic volume at
the intersecdo6 is expected to increase by 25 percent to approximately 91,000 VPD by year 2035. The
projected LOS would remain at current levels of E and F with increased congestion and delays for motorists.
Figure 2-l4ofthe [ity'sCirculation Element identifies intersections inthe City that require improvements
to reduce traffic congestion, The Lakewood Boulevard and Florence Avenue intersection has been
identified asrequiring roadway improvements, The of the d project is to improve traffic
circulation and minimize congestion along the Lakewood Boulevard and Florence Avenue corridors by
providing dual left -turn lanes in the southbound and northbound directions along Lakewood Boulevard and
providing an exclusive westbound right -turn lane on Florence Avenue, The proposed roadway and
_ intersection 1mpr ve is+en,vviLhthe G�nera|Plan cin.ola'ionB�--L� �e�no
'�� '
� |on^—enn-ionimpacts kf^�—occuc - -'--+'-- ~ - -
'
shownAs
'
two existing bus transit stops along Florence Avenue and one existing bus transit stop along Lakewood
Boulevard. During construction, the existing bus transit stops would be relocated to a location in the same
general area, The temporary relocation of the bus transit stolps would not have a significant impact on the
�accessibi|ityofbussemiceprovidedw|thinthepn�eciarea.Depending onthe final design of the ect
the temporary relocated bus transit stops mayberelocated back 10their or|gina|1Ocatiunand/�r be
relocated to o new location, The temporary and permanent relocations of the existing bus transit stops
would becoordinated with the Los Angeles County Metropolitan Transportation Au1horitytoensunesafe
and accessible bus transit facilities are provided vsit�hin the projectarea. With implementation of Mitigation
Measure T-1, potential impacts on bus transit facilities would be less than significant.
The[ircu|ation Element d City of Downey Municipal Code identify several truck hauling routes in the
Fitv Rnth 1,11CMA/nod Boulevard and Florence Avenue are designated truck hauling routes, Depending on
the destination of the trUck trips, one or more of the designated truck routes could be used, The selection
of construction haul routes would be coordinated with the City and identified in project plan specifications,
With the implementation of Miti8ation Measures land T-'�, potentia| conOicts with the Circulation
-- -�Element regarding the hauling ofmaterials into and out zzfthe City \would ,beavoided.
Mitigation Measures:
~-
T-I: Prior in construction, the temporary and permanent relocations of existing bus transit stop
facilities will be coordinated with the Los Angeles County Metropolitan Transportation
Authority.
'T-2: Final Constnction Plans forfhe project will identify truck hauling ~~ that
~are consistent ^
'with the [NofDowneYGenera|P]aoandOtyofDowneyNWun|cipa|(-udcSedion31Q9�iO(c)� �
T-3: Truck hauling and construction equipment mobilization and demobilization will occur outsiclic
ofthe peak traffic hours, between 9:OOAMand 3:OOPM.
t) Conflict orbeinconsistent with CEQA Guidelines Section 15064.3,subdivision (b)?
Less Than Significant |nnpact: Section 15OG42ofthe [EOAGuidelines describes specific considerations
for evaluating a pnoject's transportation impacts, Generally, vehicle miles traveled (VMT) would be the
appropriate measure of transportation impacts. Other relevant considerations could include the effects of
a project on transit and non -motorized travel. According tothe State [EOAGu|dehnes, transportation
projects that reduce or have no impact on VMT are assumed to cause a less than significant impact.
The proposed project would increase the operation efficiency and vehicle capacity of the Lakewood
Boulevard and Florence Avenue intersection, The proposed improvements would not induce additional
VKHT within the project area, Because there would be no substantial or measurable increase in VMT over
the current condition, the proposed project would not conflict with Section 15064.3 of the CEQABu|de||nes
and potential transportation impacts would beless than significant.
LAKEWOOD BOULEVA RDAND FL0RENCE INTERSECTION 11VIPROVE&I ENT PRD BT(C|P 00,19-07
Project construction would temporarily generate additional VMTon the local roadway system, resulting
from worker vehicle trips and truck hauling trips traveling to and from the site. The amount of construction
trips would depend on the construction phase with the majority mfthe trips associated with hauling of
materials in and out of the project area. The VMTfrom the construction activities would be short-term and
would not result a in long-term increase in vehicle miles traveled and would not be in conflict of Section
1SOG4.3ofthe [EQAGuidelines and would beless than significant.
Mitigation Measures: Nomitigation measures are required.
c) Substantially increase hazards due to geometric design feature (e.g., sharp curves or
dangerous intersections) orincompatible uses (e.g,farm equipnment)?
Less Than Significant Impact With Mitigation Incorporated: The proposed project has been designed
in accordance with the City mfDowney's roadway design standards and requirements. The proposed
improvements would increase the operational efficiency and safety of the Lakewood Boulevard and
Florence Avenue intersection. The long-term operation of the proposed project would not increase hazards
for motorists.
and would require the mobilization and demobilization of construction equipment and the operation of
heavy construction equipment within the study area. To avoid conflicts with motorist and pedestrians when
construction activities begin, a Traffic Control Management Plan would be prepared and implemented
work area and to redirect pedestrians safely away from the work area would be implemented. With the
implementation of Mitigation Measure T-4, potential traffic hazards associated with proposed roadway
construction activities would be less than significant.
Mitigation Measures:
Less Than Significant Impact With Mitigation Incorporated: The proposed project would increase the
traffic detouring which could affect emergency access within the project area. As part of the proposed
project, a Traffic Control Management Plan would be prepared and implemented to ensure adequate
emergency access would be maintained all times. With the implementation of Mitigation Measure T-4,
potential emergency access impacts would be less than significant.
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I.AKEVJ00DOOWLEVUDAND FLOREWEINTERS03|O01h4!1P3,0VUN8ff PR083f(|PNGl9-0A
Less Than
Potentially Significant Less Than No
Would the project:
Significant Impact With Significant
Impact
'Impact,
Mitigation Impact
incorporated
a. Cause a substantial adverse change in the significance
of a tribal cultural resource, defined in Public
Resources Code Section 21074 as either a site,
feature, place, cultural landscape that is
geographically defined in terms of the size and scope
of the landscape, sacred place, or object with cultural
value to a California Native American tribe, and that
1) Listed or eligible for listing in the California
Register of Historical Resources, or in a local
El
register of historical resources as defined in
Public Resources Code Section 5020.1(k), or
2) A resource determined by the lead agency, in its
discretion and supported by substantial
evidence, to be significant pursuant to criteria set
forth in subdivision (c) of Public Resources Code
Section 5024.1. In applying the criteria set forth
El El
in subdivision (c) of Public Resource Code Section
5024.1, the lead agency shall consider the
significance of the resource to a California Native
American tribe.
California Assembly Bill 52 (AB52) established a formal consultation process for California tribes within the
[E[V\process. A852 specifies that any project may affect nrcause a substantial adverse change in the
significance of a tribal cultural resource would require a lead agencyto "begin consultation with a California
Native American tribe that is traditional and culturally affiliated with the geographic area of the proposed
project." Section 21074 of AB52 also defines a new category of resources under CEQA called "tribal cultural
resources." Tribal cultural resources are defined as "sites, features, places, cultural landscapes, sacred
places, and objects with cultural value to a California Native American tribe" and is either listed on or eligible
for the California Register of Historical Resources or a local historic register, or if the lead agency chooses
totreat the resource as a tribal cultural resource.
The City has initiated the tribal consultant process for the purposes ofA852 for the proposed project on
July 8, 2019. Those tribes that have requested to be listed on the City's notification list for the purposes of
AB52 were notified in writing via certified mail. As part of this process, the City has provided notification to
parh of these listed tribes the opportunity to consult with the City regarding the proposed project. The
following individuals/tribes were sent email letters:
• AndrewSa|as, Chairperson, Gabhe|eNoBand ofMission Indians 0zhNaUon
° SandonneGoad, Chairperson, Gabhe|ino/TmngvaNation
° Charles Alvarez, [o-[hairpeoor\GabrieUnoTongvaTribe
~ Robert Dorame, Chairperson, Gabrielino Tongva Indians of California Tribal Council ~ ,
At the end
- of -- hanotr es requested consultation on the project,
On ~
^lands file search
�indicated that there were no sacred burial grounds within the project area.
� /
'PROJECT IMPACTS
---
~" Would the project cause = substantial adverse change `nthe significance moatribal cultural �
resource, defined in Public Resources Code Section 21074 as either a site, feature, place,
clultu.-M. landscape that is geographically defined in terms of the slize and scope of the
landscape, sacred place, or object with cultural value to a California Native American tribe,
and that is:
1) Listed nr'eligible for listing in the California Register ofHistorical
� Resources, or|na
local register ofhistorical resources as/defined in|Public Resources Code Section
- '5M2D.l(k)7
/
A resource determined by the lead agency, in its discretion and supported by
substantial evidence, to be significant pursuant to criteria set forth in subdivision (c)
of Public Resources Code Section 5024.1. In applying the criteria set forth in
subdivision (c) of Public Resource Code Section 5024.1, the lead agency shall
consider~ `significance of the resource to -Native -__American tribe.
_ ~ -
' Less Than S�nx��m�|npact With Khdg���n Incorporated: e-
a iscurrently built '
. out Coordination with local Native American Tribes and the California Native American Heritage
Commission did not identify that the project area as being sensitive for Native American tribal
resources, The proposed project would involve limited excavation activities that could impact
native soils. Because Native American Tribal resources are known to occur in the regional area,
- 'there could be some, but reruuLu puLenLial LhaL unknown Native American tribal resources could
be encountered during excavation activities, To avoid impacts to unknown native tribal resources,
_Mitigation Measures [R-1an[--Jed With of�iti�aOund�Zare r�cnmmenddVt
Measures CR-1and [R-2 potential impacts to unknown Native American tribal resources would be
less than significant,
Mitigation Measures:
CR-1: In the event that any evidence of cultural resources is discovered, all work within the
vicinity of the find should stop until a qualified archaeological consultant can assess
the find and make recommendations,
[R-2: If human remains are encountered during excavation activities, all work shall halt in
the vicinity of the remains and the County Coroner shall be notified (California Public
Resources Code, Section 5097.90.The Coroner will determine whether the remains
are of forensic interest. If the Coroner, with the aid of qualified Archaeologist,
determines that the remains are prehistoric, she/he will contact the Native American
Heritage Commission (NAHC). The NAHC will be responsible for designating the most
likely descendant (MLD), who will be responsible for the ultimate disposition of the
remains, as required by Section 7050.5 of the Califomio Health and Safety Code. The
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION IMPROVEMENT PROJECT CIP N(k 19-07)
Initial Sludy/Mitigated Negative Declaration
IVILID shall make his/her recommendation within 48 hours of being granted access to
the site. If feasible, the MLID's recommendation should be followed and may include
scientific removal and non-destructive analysis of the human remains and any items
associated with Native American burials (Colifornia Health and Safety Code, Section
70SO.S). If the landowner rejects the MLID's recommendations, the landowner shall
5097.98).
Administrative Draft I July 2020 4.18-3 Tribal Cultural Resources
I
This page 'Intentionally left blank
LAKEWOOD BOULEVARE, AND RORENLE|NTERSECT|DN|PAPKOVEM0KPRWE[T(C(PNO, l9,07)
|n|Ua�u6�N�gon�NegadveDedanoinn
4.19 Utilities and Service Systems
Less Than
PotentialIV
Significant,
beis Than
No
Would the project:
Significant
ImpactWith
"on
Significant
Impact
Impact
mitijoil
Impact
Incorporated
a. Require or result in the relocation or construction of
new or expanded water, or wastewater treatment or
stormwater drainage, electric power, natural gas, or
telecommunications facilities, the construction or
relocation of which could cause significant
environmental effects?
b. Have sufficient water supplies available to serve the
project and reasonably foreseeable future
El
El
El
development during normal, dry and multiple dry
c. Result in a determination by the wastewater
treatment provider which serves or may serve the
project that it has adequate capacity to serve the
El
El
N
E]
project's projected demand in addition to the
provider's existing commitments?
d . Generate solid waste in excess of State or local
standards, or in excess of the capacity of local
El
El
E]
infrastructure, or otherwise impair the attainment of
solid waste reduction goals?
e. Comply with federal, state, and local management
and reduction statutes and regulations related to
El
El
El
R
solid waste?
ENVIRONMENTAL ANALYSIS
a) Require orresult inthe relocation orconstruction mfnew mr expanded water, or wastewater
treatment or stormnvvater drainage, electric power, natural gas, or telecommunications
facilities, the construction or relocation of which could cause significant environmental
effects?
No Impact: implementation of the proposed project would not increase the demand for utility service
systems and therefore, would not require the expansion of existing utility systems or the construction of
new utility systems. The proposed roadway improvements would require relocation of some existing utility
systems. The proposed excavation activities would be uncovered and exposed during construction to allow
them to easily be relocated and would not result in any additional impacts beyond those that would occur
from the excavation activities. Each utility service provider would be coordinated with on the design and
installation and would ensure that adverse impacts to the environment are avoided.
Mitigation Measures: No mitigation measures are required
t) Have sufficient water supplies available to serve the project and reasonably foreseeable
Less Than Significant Impact: According to the City of Downey's 2015 Urban Water Management Plan
(UWMP), the City provides service to 98 percent of the Cityof Downey. The City is an "urban watersupplier"
pursuant to Section 10617 of the California Water Code, The UWMP Act, enacted in 1983, requires every
future development during normal, dry and multiple dry years?
urban water supplier providing water for municipal purposes to more than 3,000 customers or supplying
more than 3,000 acre-feet of water annually to prepare, adopt, and tile an Urban Water Management Plan
~ with the California Department of Water () every five years in the years ending in zero and_-
five. ''~—^/ ~2~1~~'''~' provides``^ '~~'~ ~�~^^~~^^^~',~' p^~~~'~=` ~"°-' '`^°=°-^-
,~~^� '
- -'^and demands vwithin the Central Basin Municipal Water District (Central lts�
water resource needs. Specifically, the UVVMPprovides water supply planning for a2Syearplanning period �
in five-year increment's and identifies water supplies needed tomeet existing and -'1Ure'demands.
According tnthe UWIVIP, there would taavailable `water
^ supplies ^for the City under 'normal, dry and �
multiple dry years, Implementation of the proposed project would not substantially increase water �
demands in the City and would have a less than significant impact on the ability ofthe City to provide p
adequate water service during normal, dry and multiple dry years. �
Mitigation Measures: Nomitigation measures are required.
Cl Result in determination he wastewater treatment provider which serve-, or may serve
the project that it has adequate capacity to serve the project's projected demand in addition
to the provider's existing commitments?
Less Thar Significant Impact: The City of Downey's Utilities DiviSion is responsible for the collection of
wastewaters within the City 4/limits. The sewerotrunk sewer mains in the City are maintained oy'the Los
Angeles County
' Sanitation District (LACSD), After sewage is collected locally and delivered to the regional
trunk lines, wastewater flows south toward the Los Coyotes Water Reclamation Plant of LACSD in the City
of Cerritos. Implementation of the proposed project would not increase \he wastewater treatment
demands within the project area. Therefore, the proposed project would not have on adverse impact on
the capacity ofexisting wastewater treatment systems,
Mitigation Measures: No mitigation measures are required,
d) Generate solid 0m�����$��tha���- �"nf7nral
���m��o� p��.-v
' infrastructure, orotherwise impair the attainment of solid waste reduction goals?
Less Than Significant Impact: Solid waste disposal within the City of Downey is provided by Los Angeles
County Sanitation Districts, Solid waste generated in the City is disposed of in the Mesquite Regional Landfill
in Imperial County using a Waste -by -Rail systern from the Puente Hills -1 rans-fer Station/k/latenals Recovery
Facility (MRF). The Puente Hills Transfer Stztion/MRFvvas1e-by-rai) system has a capacity to aocept4,4OO
tons per day and the Mesquite Regional Landfill (which is the receiving landfill) has capacity ofJD,OUOtons
per day for lOUyears aLthat rate (LA[SD).
The operation of the proposed project would not increase the demand for solid waste disposal and
therefore, would not have any long-term impacts on the carrying capacities uflandfills that would serve
the project area, The construction operations for the proposed project would generate debris as well as
some construction worker trash that would require solid waste disposal. The Mesquite Regional Landfill
would have adequate solid waste disposal capacity to accommodate solid waste generated by the
construction activities, Additionally, some construction materials generated from the proposed project are
LAKEWOOD BOULEVARD AND FLORENCE iNTERSECTION lhiPROVEMENT PROJECT (CIP NO, 19-07)
riitial Sludy/k6itigated Negative, Declaration
anticipated to be recycled or reused to reduce solid waste generation. Therefore, the proposed project's
contribution to solid waste would be considered less than significant.
e) Comply with federal, state, and local management and reduction statutes and regulations
related to solid waste?
No Impact: The City of Downey would be required to comply with state and local statutes and regulations
related to solid waste. Applicable regulations include California's Integrated Waste Management Act of
I.
# L
a per -capita requirement rather than tonnage; AB341 which increased the statewide goal for waste
Aversio-t t ercent bi 2020i and the California Solid Waste Reuse and Recycling Access Act (AB1327)
materials in development projects (CalRecycle). The proposed project would produce solid waste
associated with the proposed construction activities. During all stages of the construction site, the
proposed project would be required to implement solid waste reduction measures to reduce the amount
of waste generated, encourage reuse and/or recycling of materials to the greatest extent feasible and
utilize materials made of post -consumer materials where possible. Therefore, implementation of the
proposed project would not impair the attainment of solid waste reduction goals and potential impacts
would be less than significant.
Adrnirii7,trative-Draft' �Jgly2O2O 4,19-3 Utilities avid Service Systems
This Pape intentionally left blank,
1,AKB0OODB08LEV AHD&N8I'll OR[N[[|N, USE T7ON(VPROVBW0'flPR0G3V]P10-07
ENVIRONMENTAL ANALYSIS
a) Substantially impair anadopted emergency response plan oremergency evacuation plan?
No Impact: The project area is situated within an urban setting. According to the California Department of
Forest and Fire Protection, the City ufDowney is not identified as high fire hazard area urnear a state
responsibility area. Therefore, the proposed project would not substantially impair an adopted emergency
response plan oremergency evacuation plan.
Mitigation Measures: Nomitigation measures are required.
b) Due to slope, prevailing winds, and other factors, exacerbate wildfire risks, and thereby
expose project occupants to, pollutant concentrations from a wildfire or the uncontrolled
spread ofawildfire?
NoImpact: The project area is situated within an urban setting. According tothe California Department of
Forest and Fire Protection, the City ofDowney is not identified as high fire hazard area ornear o state
responsibility area. Therefore, the proposed project would not exacerbate wildfire risks, and thereby
expose project occupants to, pollutant concentrations from a wildfire or the uncontrolled spread of
wildfire.
Mitigation Measures: Nomitigation measures are required.
C. Require the installation or maintenance of associated infrastructure (such as roads, fuel
breaks, emergency water sources, power lines orother utilities) that may exacerbate fire risk
orthat may result |ntemporary orongoing impacts to the environment?
iWM
No Impact: The project area is situated within an urban setting. According to the California Department of
Forest and Fire Protection, the City of Downey is not identified as a high fire hazard area or near a state
responsibility area. Therefore, the proposed project would not exacerbate fire risk or result in temporary
or"ongoing "impacts to the environment:
Mitigation Measures: No mitigation measures are required
de ;Expose people or structures to significant risks, including downslope or downstream
flooding or landslides,"as a result of "runoff, post -fire slope instability, or drainage changes?
No Impact: The project area is situated within an urban setting. According to the California Department of
Forest and Fire Protection, the City of Downey is not identified as a high fire hazard area or near a state
responsibility area, Therefore, the proposed project would not expose people or structures to significant
risks, including downslope or downstream flooding or landslides, as a result of runoff, post -fire slope
instability, or drainage changes.
MitigationMeasures: No mitigation measures are required.
LAKBk1D0D BOULEVARD iklID HLORFIrvU 10"ITERSKTIO`1, P� "I
U (CiF, �10� -OT
4.21 Mandatory Findings of Significance
Less Than,
Potentially, 'Significant" Less Than No
Would the project:
Significant Impact With Significant Impact
Impact Mitigation— Impact
ln6brpiorated'
a, Have the potential to substantially degrade the
quality of the environment, substantially reduce the
habitat of a fish or wildlife species, cause a fish or
wildlife population to drop below self-sustaining
levels, threaten to eliminate a plant or animal
community, substantially reduce the number or
restrict the range of a rare or endangered plant or
animal or eliminate important examples of the major
periods of California history or prehistory?
b. Have impacts that are individually limited, but
cumulatively considerable? ("Cumulatively
considerable" meansthatthe incremental effects of a
project are considerable when viewed in connection
El 0 EJ
with the effects of past projects, the effects of other
current projects, and the effects of probable future
projects)?
c. Have environmental effects which will cause
substantial adverse effects on human beings, either
El 0 El El
directly or indirectly?
ENVIRONMENTAL ANALYS15
a) Have the potential to substantially degrade the quality of the environment, substantial
reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to dr
below self-sustaining levels, threaten to eliminate a plant or animal communit
substantially reduce the number or restrict the range of a rare orenclangered plant or animl.
or eliminate important examples of the major periods of California history or prehistory?
Less Than Signcant Impact With Mitigation Incorporated: The project area is situated within
There is not any,1 habitat within the Qro ect area to support sensitive vegetati
communities, plants, or wildlife. Therefore, implementation of the proposed project would not redu
populations of plants, wildlife, or their habitat to below self-sustaining levels.
Through coordination with the South Central Coastal Information Center, local Native American Tribes a
the California Native American Heritage Commission, it has been determined that the project is not knoll
,# fpl#--AQ d not resLM
in any direct impacts known to cultural resources. However, because cultural resources have he]
identified within the regional area, there would be some potential, though remote, that unknown cultu
resources could exist within the project area and could be encountered during construction operatio
Mitigation Measures CR-1 and CR-2 are recommended which would require a halt stop condition
implemented to avoid significant impacts to unknown cultural resources that might be encountered duri construction activities.
11,dmin�stra �hm DmIl"t, l� July 2,102.0 11, kf, - ndatcry Flraih-i( ,df
b) Have impacts that are individually limited, but cumulatively considerable? ""Cumulatively
considerable" means that the incremental effects of a project are considerable when viewed
in connection with the effects of past projects, the`effects of other current projects, and the
effects of probable future projects)?
Less Than Significant Impact With Mitigation Incorporated: A cumulative impact may be significant if a
project's incremental effect, though individually limited, is cumulatively considerable. Cumulatively
considerable means that the incremental effects of an individual project are significant when viewed in
connection with the effects of past projects, the effects of other current projects and the effects of
probable future projects: Cumulative impacts can occur as a"result of the intersections of the interactions
of environmental change from multiple projects that could affect the same environmental resources, such
as traffic, noise and air duality.
The analysis determined that no impacts would occur to agriculture resources, mineral resources and
recreation facilities and that less than significant impacts would occur to aesthetics, air quality, energy,
greenhouse gas, hazards, land use, housing and population and public services. Therefore, while the project
would contribute to cumulative impacts, the project contribution would not he considerable.
Impacts related to biology, cultural resources, geology and soils, hydrology, noise, transportation and tribal
resources were determined to be potentially significant and Would require mitigation measures erasures to reduce
impacts to a less than significant level. Therefore, the Groposed project could contribute considerably to
significant cumulative impacts in these' environmental issue areas. These impacts would he construction
related and temporary and would not contribute to long-term cumulative Impacts in the region.
Additionally, the proposed project would comply with local and regional planning programs, applicable
codes and ordinances,,State -and Federallawsand regulations and project specific mitigation measures
Compliance with these programs would reduce the proposed project's incremental contributions to
cumulative impacts to a less than significant level.
c) Have environmental effects which will cause substantial adverse effects on human beings,
either directly or indirectly?
Less Than Significant Impact With Mitigation Incorporated: Potential impacts that could cause
substantial adverse effects on human beings were analyzed in this IS/AND include, but are not limited to;
air ml ishhi arr nhni scr anc nmicinnc , ,I,— h,--,,4, haarU LC;d1,, seiJll zI U
J,II nlly,t,_vv___ha 51-15V 1-1.9—, 11. dIte chaa
hydrology/water quality, noise and wildfire. Each issue area found that there would be either no impacts,
impacts would be less than significant, or impacts would be less than significant with mitigation
incorporated. The proposed project would comply with local and regional planning programs, applicable
codes, and ordinances, State and Federal laws and regulations, and mitigation measures to ensure that
long-term operation activities and short-term construction activities associated with the proposed project
would not result in direct, or indirect adverse impacts to human beings.
LAKEWOOD BOULEVARD AND FU0RENCE MT R5ECTION|MPRDVEMENTPR0ECT(C|P%|9-07)
Dedatation
4.22 References
The following references were utilized during preparation of this Initial Study/Environmental Checklist.
These documents are available for review at the City of Downey Community Development Department
located at11121Brookshire Avenue, Downey, California 9O241.
Association of Environmental Professionals. California Environmental Quality Act Statues and Guidelines.
2020.
Birdseye Planning Group. Air Quality and Greenhouse Gas Study. December 2019.
BKFEngineers. Drainage Impact Memorandum. April 3,2O2O.
California Department ofConservation. California Geological Survey. Accessed April 2020.
California Department of Conservation. California Important Farmland Finder. 2019.
California Department of Conservation. Farmland Mapping and Monitoring Program. Accessed April 2020.
California Department of Fish and Wildlife. California Natural Diversity Data Base Special Status Species,
Whittier Quadrangle. Accessed January 2O2O.
California Department of Forestry and Fire Protection. Fire Hazard Severity Zones Map. Accessed October
2019.
California Department of Transportation. Scenic Highway Program. Accessed April 2020.
California Department ofTransportation. Transportation- and[onstnuctiun-|nducedVibmtionGuidance
K4anuai20O4.
California Office mfEnvironmental Health Hazard Assessment. Accessed April 2020.
California Water Board. Water Quality Control Plan for the Los Angeles Region Basin. Accessed March
2020.
Ca|Recyc|e. History ofCalifornia Solid Waste Law. Accessed April 2020at
https://wwwza|recydeza.gov/|aws/|eg|s|ation/ca|hist.
City ofDowney. Energy Action Plan. January 21,2Q15.
City of Downey. General Plan Vision 2025. Adopted 2005. Accessed October 2019 at
https://wwvv.dom/neyco.urg/oupcity/depariments/ummmunity+deve|opment/p|anning/oenera|-p|an
map.
City ofDowney General Plan Land Use Map. Updated December 5,2O12.
City of Downey General Plan Environmental Impact Report. Accessed October 2019.
City ofDowney Municipal Code. Accessed April 2OZO.
City ofDowney. Urban Water Management Plan. 2015.
Diaz-Yourman &Associates. Pavement Design Memorandum. February2G, 2020.
Federal Railroad Administration. Transit Noise and Vibration Impact Assessment Manual. 2O1Q.
Goog|e Earth.AcceasedApri|30ZUothttps://wwvv.goog|e.com/earth/.
References4J�q
LAR�N�OOG0U�VARR8NBFi�RE�I|Nl�B5�30N|�PR0����P8U/EO7QPN87��� �
`
Harris, Miller, Miller and Hanson, Transit NobeandVlbrationAssessment2OO5 y
Los Angeles County Sanitation Districts, Puente Hills Materials Recovery Facility Fact Sheet, Accessed April
202Oathttps://www,|acsd.org/ ervices/so|idwaste/mrts/phmrffac1sheet.asp. �
Los Angeles Regional Water [}ue|ityControl 8oa'� �OrderNo.R4-2O1Z-0175�AmeMdedNovernber2O26. i
' - '
�Mesquite Regional Landfill. Waste bvRail. Accessed April 2O7Oat
https://www.mr|f,org/index,asp7pid=21)�
Southern California Association of Governments, Profile of the City of Downey, 2019,
South Coast Coast Air Quality Management District. Air Quality Management Plan.2016.
SouthCoastAJrnuaUf°K4ano8enlentDistrictRu|e800k.AccessedAph|2U2O
South Central Coastal |nfmnnabonCenter, California Historical Resources Information System Records �
Search, January 7,2O2O� �
^
State Water Resources and Control Board. GeoTr, cker,Aouessed October25, 2019, �
State Water Resources and Control Board. 2009-0009-DWQ Construction General Permit. July 2019�VCS Environmental, Cultural Resources Records Search and a Paleontology Records Check. January 2020,
�
�
LAKEWOODBOULEVARD AND F00ENCEINTERSECTION IMPROVEMENT PROJECT (CIPNO, 19-07)
BIOLOGICAL RESOURCES
B10-1: The removal of trees should be conducted outside of the nesting season (February 1 to August
31) to the extent feasible. If tree removal activities occur between February 1 and August 31,
a nesting bird survey shall be conducted by a qualified biologist within no more than 72 hours
of such scheduled disturbance, to determine the presence of nests or nesting birds on trees
proposed to be removed. If active nests are identified, Tree removal activities will be halted
until the nesting effort is finished (i.e., the juveniles are surviving independent from the nest).
The nnsi1e biologist will review and verify that the nesting effort has finished, Tree removal
work can resume when no other active nests are found.
CULTURAL RESOURCES
[R-1: In the event that any evidence of cultural resources is discovered, all work within the vicinity
of the find should stop until a qualified archaeological consultant can assess the find and make
recommendations.
[R-2: If human remains are encountered during excavation activities, all work shall halt in the vicinity
of the remains and the County Coroner shall be notified (California Public Resources Code,
Section 5097.98). The Coroner will determine whether the remains are of forensic interest. If
the Coroner, with the aid of a qualified Archaeologist, determines that the remains are
prehistoric, she/he will contact the Native American Heritage Commission (NAHC). The NAH[
will be responsible for designating the most likely descendant (MLD), who will be responsible
for the ultimate disposition of the remains, as required by Section 7050.5 of the California
Health GndSofety Code. The MLD shall make his/her recommendation within 48 hours of being
granted access to the site. If feasible, the MLD's recommendation should be followed and may
include scientific removal and non-destructive analysis of the human remains and any items
associated with Native American burials (California Health andSofety Code, Section 7O5O.5).|f
the landowner rejects the MLD's recommendations, the landowner shall rebury the remains
with appropriate dignity on the property in a location that will not be subject tofurther
subsurface disturbance (California Public Resources Code, Section 5097.98).
GEOLOGY AND SOILS
GEC-1: The design and construction of the proposed project will implement the recommended
pavement design and earthwork recommendations provided by the Pavement Design
Memorandum prepared by Diaz-Yourman and Associates in FebruaryZOZO.
PALEO-1: In the event any evidence of paleontological resource is discovered, all work within the
vicinity of the find should stop until a qualified Paleontologist consultant can assess the find
and make recommendations.
HVVQ-l: Prior to the start of construction, the proposed project will obtain coverage under the General
Construction Permit bythe SVVRC8 and in compliance with the permit shall 0|e a Notice of
Intent with the RVVQCBand prepare and implement aSVVPPP.
Administrative Draft 1 Rfly 21020 5-1 Inventory of Mitigation Mleasures
LAND USE AND PLANNING
LU'1� Prior toimpacts 1oprivateprope�y^h~^r|ty�0|coordin�teamjcurne+oan agreement
the property owner onthe acquisition ofhght+of-wayproperty,
LU-2-, Prior to impacts to private property, coordination would occur with the business owner to
_ �~ 'eouu/=,/at potential construction ac
tivities m
"vuunu�nav�ay/�nmcanzer�/czzneoperanon
' —the business,
�— ' —
LU-BPrior to'constructon,�^oomnnunity h—`— naMfnviU6e'im�|8meM~dtoinform the
- ~
community about the projectcon5t[OctiunacLivities.—^.^-_�^�-�-~..�~_��
'
LU'4: Prior to the start of construction activities, a Traffic Control Management Plan will be prepared '
/�ndimp|emen�ed� [
'
NOISE
N-1: Require that construction equipment utilize noise reduction features (e.g., mufflers and engine /
shrouds.) that are no less effective than those originally installed by the manufacturer.N-1 Prohibit the start-up of heavy construction before 7:00 AM.
�
. �
�� Require that haul truck deliveries be subject to the same hours specifiedfor construction.
TRANSPORTATION -
T-1! Prior to construction, the temporary and ---'permanent relocations of existing bus transit stop
facilities will be coordinated with the Los Angeles Metropolitan ortation
'- Auihority,
� : ^ - ^Final Construction
~Plans for
'-~ ~project will identify ---- truck hauling
ux �~routes that are consistent
with the City of Downey General Plan and City of Downey Municipal Code Section 31999.10 (c).
T'3: Truck hauling and construction equipment mobilization and demobilization will occur outside
ofthe peak traffic hours, between g:UQAK8and 9:OOPK ^
|-4: Prior tothe start ofconstruction activities, aTraffic [onLro|ManaQementP|anwiUbeprepaned
and implemented.
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION IMPROVEMENT PROJECT (CIP NO, 19-07)
Based on the information and environmental analysis contained in the Initial Study/Environmental
Checklist, we recommend that the City prepare a mitigated negative declaration for the Lakewood
Boulevard/Florence Avenue Intersection Improvement Project. We find that the proposed project could
have a significant effect on a number of environmental issues, but that mitigation measures have been
g4s t 1-2 V�;? �-- �t- -o—z t�2-wqu W,
be selected for the City's determination (see 5ec •LeqdAgfnq fLeterminqWn).
Date Dan Bott, Environmental Project Manager
VCS Environmental
Administrative Draft! July 2020 6-1 Consultant Recommendation
Thisp��eintenhonaUy|e0b|an�
LAKEWOOD BOULEVARD AND FLORENCE INTERSECTION INIPRORENIEJT PROJECT )i:IP NO, 1R- 7)
The City of Downey finds that the proposed use COULD NOT have a significant effect
on the environment, and a NEGATIVE DECLARATION will be prepared.
The City of Downey finds that although the proposal could have a significant effect on
the environment, there will not be a significant effect in this case because the
mitigation measures described in Section 5.0 have been added. A MITIGATED
NEGATIVE DECLARATION will be prepared.
The City of Downey finds that the proposal MAY have a significant effect on the'
El
environment, and an ENVIRONMENTAL IMPACT REPORT is required.
The City of Downey finds that the proposal MAY have a significant effect(s) on the
environment, but at least one effect 1) has been adequately analyzed in an earlier
document pursuant to applicable legal standards, and 2) has been addressed by
mitigation measures based on the earlier analysis as described on attached sheets, if
the effect is a "potentially significant impact" or "potentially significant unless
mitigated." An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only
the effects that remain to be addressed.
Title:
Printed
Name:
Agency:
11 .. .. ,.
Administrative Drift [July 20207-1 Lead Agency Determination
T 1-1 i pale te i-, t i C) i -I a 11 y 1 E fiL Ul- 1 ca n
LAKEWOOD BOULEVARD pTFLORE NCI|NTEB6GT0N04PR8V80NTPKWGJU]PNO, 19-07
jifive
impacts found to be significant will be mitigated. The reporting or monitoring plan must be designed to
ensure compliance during project implementation (Public Resources Code Section 21081.6).
��� has been prepared for the akewood Boulevard at Florence Intersection Improvement Project
(the "project"). This Mitigation Monitoring and Reporting Checklist is intended to provide verification that
all applicable mitigation measures relative to significant environmental impacts are monitored and
reported. Monitoring will include: 1) verification that each mitigation measure has been implemented; 2)
recordation of the actions taken to implement each mitigation; and 3) retention of records in the City of
Downey's Lakewood Boulevard at Florence Intersection Improvement Project file.
This Mitigation Monitoring and Reporting Program (MMRP) delineates responsibilities for monitoring the
project, but also allows the City flexibility and discretion in determining how best to monitor
implementation. Monitoring procedures will vary according to the type of mitigation measure. Adequate
review of all mor�itoCing-�ert-"-nf-w-R-ment--acimEommikr# ---nt
disposition, unless otherwise noted in the Mitigation Monitoring and Reporting Checklist (Table 1). If an
require corrective actions to ensure adequate implementation.
involves the following steps:
~ The City distributes reporting forms to the appropriate entities for verification of compliance.
° Departments/agencies with reporting responsibilities will review the Initial Study/Mitigated
Negative Declaration, which provides general background information onthe reasons for including
specified mitigation measures.
= Problems orexceptions to compliance will be addressed to the City as appropriate.
• Periodic meetings may be held during project implementation to report on compliance of
mitigation measures.
° Responsible parties provide the City with verification that monitoring has been conducted and
ensure, as applicable, that mitigation measures have been implemented. Monitoring compliance
may be documented through existing review and approval programs such as field inspection
reports and plan review.
• The City prepares areporting form periodically during the construction phase and anannual report
summarizing all project mitigation monitoring efforts.
• Appropriate mitigation measures will be included in construction documents and/or conditions of
permits/approvals.
Final I October 2020 Mitigation Monitoring and Reporting Program
IIAK"EkNOOD B0U,,'LEVJ,,QRD AT FLOIREhl(k, MN"NE.C7 OCNIP "'4'111�
Minor changes to the MIVIRP, if required, would be made in accordance with CEQA and would be permitted
after further review and approval by the City. Such changes could include reassignment of monitoring and
reporting responsibilities, plan redesign to make any appropriate improvements, and/or modification,
substitution or deletion of mitigation measures subject to conditions described in CEQA Guidelines Section
15162. No change will be permitted unless the MlVIRP continues to satisfy the requirements of Public
Resources Code Section 21081.6.
00
. . .. . . . . .
BIOLOGICAL RESOURCES
BIO-1 The removal of trees should be conducted
3 days prior to
City of Downey
Qualified
outside of the nesting season (February 1 to
ground
Public Works
Biologist if
August 31) to the extentfeasible. If tree removal
disturbance
Department
conducted
activities occur between February 1 and August
(demolition,
during nesting
31, a nesting bird survey shall be conducted by
grading and/or
season
a qualified biologist within no more than 72
construction)
hours of such scheduled disturbance, to
determine the presence of nests or nesting
birds in trees proposed to be removed. If active
nests are identified, tree removal activities will
be halted until the nesting effort is finished (i.e.,
the juveniles are surviving independent from
the nest). The onsite biologist will review and
verify that the nesting effort has finished. Tree
removal work can resume when no other active
I nests are found.
CULTURAL RESOURCES
CR-1 In the event that any evidence of cultural
During
City of Downey
Qualified
resources is discovered, all work within the
Construction,
Community
Archaeologist if
vicinity of the find should stop until a qualified
Excavation and
Development
cultural
archaeological consultant can assess the find
Other
Director
resources are
and make recommendations.
Construction
encountered
Activity
I
I I J
9f human remains are encoaarttered during 1 DUring
City of Downey I County Coroner
excavation activities, ak work shall halt in the i earthmoving
Community if human
vicinity of the remains and the County Coroner f activities
Devohoprnent � remains
shhalI be notified (C'olifornica Public Resources s
Department i encountered
Code, Section 5097.98). The Coroner vri0h
determine whether the remains are of forensic 3,
t
interest. Of the Coroner, with the aid of a x
qualified Archaeologist, determines that the
l
remains are prehistoric, shore/he Mil contact the r
Native American heritage Commission (NAFIC�.
"or
The NA14C will be responsible designating a
the most likely descendant (MLD), who wiPh be
responsible for the ultimate disposition of the I
remains, as required by Section 7050.5 of the
California Health andSofetyCode. The MILD shad
make her/his recommendation within"48 hours
�
of being granted access to the site. Of feasible„
the MLD's recommendation should be followed
and may include scientific rermoval and "non h
destructive analysis of the human remains and
a
any items associated with Native American
burials (C"alifornfa Health and Srafety Code,
i
Section 7050.5). Of the landowner repects the
"MLD's recommendations, the landowner shall
rebaary the remains with appropriate dignity on i
the property in a location that will not be subject
r
to further subsurface distnarbance (California
Public Resources Code, Section '5097 )
`
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Im lemntation
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initials ; :: Date.: °.,, Remarl
GEOLOGY AND SOILS
-
GEO-1
The design and construction of the proposed
Prior to
City of Downey
project will implement the recommended
Issuance of
Public Works
pavement design and earthwork
rGrading Permit
Department
recommendations provided by the Pavement
Design Memorandum prepared by Diaz -
You; man and Associates in February 2020.
PALEO-1
In the event any evidence of a paleontological
During
City of Downey
Qualified
resource is discovered, all work within the
I' Construction,
Community
Paleontologist if
vicinity of the find should stop until a qualified
Excavation and
Development
paleontological
Paleontologist consultant can assess the find
Other
Department
resources
and make recommendations.
Construction
encountered
Activity
HYDROLOGY AND WATER QUAL"
HWQ-1
Prior to the start of construction, the proposed
Prior to
City of Downey
City of Downey
project will obtain coverage under the General
Issuance of a
Public Works
Public Works
Construction Permit by the SWRCB and in
Grading Permit
Department
Department
compliance with the permit shall file a Notice of
Intent with the RWQCB and prepare and
implement a SWPPP.
LAND USE AND PLANNING
LU-1
Prior to impacts to private property, the City will
Prior to
City of Downey
coordinate and come to an agreement with the
Construction
Public Works
property owner on the acquisition of right of
Department
way property.
LU-2
Prior to impacts to private property,
Prior to
City of Downey
coordination would occur with the business
Construction
Public Works
owner to ensure that potential construction
Department
activities would not have a significant effect on
the operation of the business.
LU-3
Prior to construction, a community outreach
Prior to
City of Downey
program will be implemented to inform the
Construction
Public Works
community about the project construction
Department
activities,
$g�
ni
lzn
t
LU-4 Frior to the start of cohstruotion activities, a Prior to City tst u o eY
Traffic Control Management Plan will be Construction Public V2Jork
p epared and implemented. 0epartrme�sf
NOISE
I
N-1 Require that construction equipment ty f Dowse
i noiseeduction features( (e.g., mufflers ajnd I P Issuance of a Public Works
engine those shroud that are no less effective than Grading Permit Department
E l stalled by the manufacturer.
�N: Prohibit :the start-up of heavy construction During City of Downey
before 7:00 AM. Construction Public Works
Department
�-3 Require that haul truck deliveries be subject to During City of Downey �
I
the same hours specified for construction. Construction Public Works
ftepartmernt _.� ..
TRANSPORTATION
T-1 In the event construction activities for the 30 days Prior to City of Dowse
project require the temporary and permanent Construction Public: Works
I relocations of existing bus transit stop fac cities, t Department
the Metro taus Operations Control Special
Events Coordinator with the Los Angeles COUnty
I
Metropolitan Transportation Authority shall be �
contacted at least 30 days in advance of the j
start of construction activities_
C-f Final Construction Plans for the project will Prior to City of �o cfey
Identify truck hauling routes that are consistent Construction Public Works I
with the City of Downey Generai Plan and City of Department
Downey Municipal Code Section 3199,10 (s}. I
Tt 3 Truck hauling and construction equipment 0uring City of Downey 1
mobilization and demobilization will occur Construction Public Works {
outside of the peak traffic hours, between 9:00 Department �
Aid and 3:00
Al" H -
�NRE
�4,