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HomeMy WebLinkAbout14. Design, install, equip 2 Groundwater Wells AGENDA MEMO DATE: December 13, 2011 TO: Mayor and Members of the City Council FROM: Office of the City Manager By: John Oskoui, P.E., Director of Public Works SUBJECT:DESIGN, INSTALLATION, AND EQUIPPING OF NEW GROUNDWATER WELLS - EXECUTE PROFESSIONAL SERVICES AGREEMENT RECOMMENDATION That the City Council authorize the Mayor to execute a Professional Services Agreement with Geoscience Support Services, Inc., for the design, installation and equipping of two new groundwater wells, for an amount of $746,058. BACKGROUND The City of Downey’s (City or Downey) water system presently delivers 15 million gallons per day of groundwater to a population of approximately 111,000. Groundwater provides customers with 100% of their potable water needs. There are a total of 20 active groundwater wells (11 additional inactive and abandoned wells) in Downey’s water system, which can be called upon depending upon customer demand. The City does not actively use any storage reservoirs. Instead, the City uses the aquifers within the Central Groundwater Basin from which it pumps groundwater directly into the potable water transmission/distribution system for delivery to its customers. These aquifers provide for storage of groundwater essential for meeting maximum day and peak hour demand conditions, and for firefighting and other emergencies. The groundwater used by the City’s customers does not presently require treatment or disinfection. Despite the good quality of groundwater presently provided by the City, a majority of the City’s older (constructed between the 1940s and 1950s), shallow groundwater wells are becoming less and less responsive to rehabilitation methods such as wire brushing, jetting, and chemical treatments resulting in large permanent reductions in groundwater production and significantly higher energy demands. The frequency of well maintenance has subsequently increased resulting in greater use of labor, materials and equipment. Many of the City’s older wells are also screened in shallower aquifers making them susceptible to shallow aquifer contamination within and adjacent to the City. A previously completed Groundwater Master Plan identified a good quality, low cost water system that is aging and becoming more susceptible to future contamination. CITY OF DOWNEY, CALIFORNIA Mayor and Members of the City Council Design, Installation, and Equipping of New Groundwater Wells December 13, 2011 Page 2 The City recently completed a Water System Master Plan (WSMP) which among other things provided recommendations for future water supply needs and installation of three new groundwater wells over the next 15 years two of which are proposed to be installed over the next 5 years. DISCUSSION A Request for Proposal (RFP) was issued on October 6, 2011, soliciting proposals from qualified professional hydrogeologists and engineering consultants for the design, installation, and equipping of two new groundwater wells for the City’s water system. In response to the RFP, three Proposals were received on November 1, 2011. A qualification based evaluation and selection process addressing project understanding, experience and capabilities of project team members, project approach, schedule, compliance with regulatory requirements, reputation, and ability to provide the required services was performed. Based on the results of the evaluation process, Geoscience Support Services, Inc., along with their subconsultant RBF Consulting, has been selected as the most qualified professional services provider to complete the necessary work for design and construction management of two new groundwater wells. Items to be completed as part of this groundwater well design, installation, and equipping project include but are not limited to: Permitting and regulatory assistance – California Environmental Quality Act (CEQA), California Department of Public Health (DPH) Drinking Water Source Assessment and Protection (DWSAP) documents, etc. Site Assessments and Preliminary Design Reports (Well Installation) Technical Plans, Specifications, and Bidding Assistance (Well Installation) Construction Inspection and Management Services (Well Installation) Well Completion Reports (Well Installation) Preliminary Design Reports (Well Equipping) Technical Plans, Specifications, and Bidding Assistance (Well Equipping) Construction Inspection and Management Services (Well Equipping) Mayor and Members of the City Council Design, Installation, and Equipping of New Groundwater Wells December 13, 2011 Page 3 The project involves a multi-step process as outlined above including: permitting and site assessments; followed by the design for the drilling and installation of the well casing including soil, water quality, and production testing; bidding and construction of the well casing and associated testing; design of the piping and above grade portion (well housing, water and storm drain piping, pump/motor, electrical, security, etc.) of the wells; and final regulatory approval before the wells can be activated and begin producing water for delivery to City customers. Preferred groundwater well locations at both abandoned and active City well sites in the northeast, central, and southwest portions of the City and at the Utilities Yard were identified as part of the WSMP through the development of a potable water hydraulic model. However, final locations will be dependent upon the results of the siting study to be conducted as part of the well project that will analyze aquifer production and storage potential, groundwater quality, well interference, proximity to abandoned wells, construction and maintenance constraints, site layout, impacts to public, proximity to existing infrastructure, capital and maintenance costs, etc. A copy of the Professional Services Agreement, which includes the Scope of Work, Project Schedule, and Project Budget, is attached. FINANCIAL IMPACT The total cost to complete the project is $820,664 which includes $746,058 for the negotiated Agreement and a contingency of $74,606. The Fiscal Year 2011-12 Water Fund Capital Improvement Program budget includes sufficient funds for the $820,664 cost to complete the activities required for this project. In order to execute the Agreement, the following amounts will need to be appropriated from the associated Water Fund accounts: $734,300 account number 51-1-8665-0700 $86,364 account number 51-1-8654-0700 Attachment: Professional Services Agreement S\AgendaMemosCC2011\12-13-11\Ground Water Well PROFESSIONAL SERVICES AGREEMENT DESIGN, INSTALLATION, AND EQUIPPING OF NEW GROUNDWATER WELLS THIS AGREEMENT is made this 13th day of December , 2011, between the CITY of Downey, a municipal corporation, hereinafter referred to as “CITY”, and the Geoscience Support Services, Inc., hereinafter referred to as “CONSULTANT.” RECITALS CITY desires to engage the services of the CONSULTANT to provide professional engineering and geohydrological services, as shown in the Scope of Services Exhibit “A”, attached hereto as and to render its services on the terms and conditions provided in this Agreement in connection with the design, installation, and equipping of two new deep, high-capacity groundwater wells. CONSULTANT is a Hydrogeologist, Geologist, and Civil Engineer duly licensed to practice in the State of California and desires to render the professional services for the CITY as provided herein. CONSULTANT further warrants that it is experienced and capable of performing the tasks hereunder in a professional and competent manner. THEREFORE , CITY hereby engages the services of the CONSULTANT, and in consideration of the mutual promises herein contained, the parties agree as follows: I. TERM 1.1. This Agreement shall be effective on the date of issuance of the CITY’s written notice to proceed, and shall continue in effect until completion of the services identified herein, or until it has been terminated by either party. II. SERVICES AND WORK SCHEDULE 2.1. The CONSULTANT’s scope of work shall generally consist of providing professional hydrogeological and engineering services for the design, installation, and equipping of two new groundwater wells for the CITY’s water system. The goal of the project is to design, install, and equip two new deep, high-capacity groundwater wells that will enhance the CITY’s ability to provide reliable, high quality, cost effective water service to its current and future customers. Some of the items to be incorporated into the project include but are not limited to: environmental and regulatory permitting compliance; preparation of site assessments and preliminary design reports for well installation; plans and technical specifications for well installation; construction management and inspection of well installation activities; preparation of well completion reports summarizing the results of the well drilling and testing; preliminary design reports for equipping of the wells; final plans and technical specifications for equipping of the wells; and construction management and inspection of the Exhibit “A”. well equipping activities in accordance with the attached Design, Installation, and Equipping of New Groundwater Wells Page 1 of 29 2.2. The CONSULTANT shall perform the scope work in accordance with the Exhibit “B”. project schedule as outlined in the attached III. USE OF AGENTS OR ASSISTANTS 3.1. To the extent reasonably necessary to enable the CONSULTANT to perform, his, her or its duties hereunder, the CONSULTANT shall be authorized to engage the services of any agents or assistants which he, she or it may deem proper, and may further employ, engage, or retain the services of such other persons or corporations to aid or assist it in the proper performance of his, her or its duties. All cost of the services of, or expenses incurred by such agents or assistants shall be chargeable directly to CONSULTANT. IV. PROJECT MANAGEMENT 4.1. Both parties shall appoint a project manager who shall meet as frequently as deemed necessary by both parties to coordinate, review and insure performance by CONSULTANT under this Agreement. The project manager appointed by CITY will oversee the daily administration of the tasks to be performed by CONSULTANT under this Agreement. V. FACILITIES 5.1. CONSULTANT shall provide the facilities necessary to complete the various work tasks to be performed hereunder. In the event CONSULTANT requires additional facilities from CITY, CONSULTANT shall meet and confer with CITY before work commences. VI. FEE 6.1. For services to be rendered under this Agreement, the CONSULTANT shall be entitled to a fee of seven hundred and forty six thousand and fifty eight dollars Exhibit “C” – Project Budget and Fee ($746,058), in accordance with the attached Schedules . Compensation for any additional services required by the CITY that are not included in this Agreement shall be negotiated and paid separately. VII. MAXIMUM COSTS 7.1. CONSULTANT expressly acknowledges and agrees that the total cost to complete all tasks set forth in Paragraph II - SERVICES shall not exceed seven hundred and forty six thousand and fifty eight dollars ($746,058), except as provided for in this Agreement or in a signed amendment to this Agreement. VIII. BILLING 8.1. CONSULTANT shall submit an itemized billing to the Director of Public Works for approval prior to receiving compensation. Billing shall include a summary of total costs and shall be made at no more than monthly intervals. All billings shall include a description of the status of efforts, a brief itemization of costs associated with each project phase and/or task/sub-task, and the total phase and/or project task/sub-task costs to date. Design, Installation, and Equipping of New Groundwater Wells Page 2 of 29 8.2. CITY at its discretion shall retain 10% from all payment due the CONSULTANT. Said retention shall be released to CONSULTANT within thirty (30) days of all work completed to the satisfaction of the CITY. IX. AUDIT BY CITY 9.1. CONSULTANT shall permit CITY or any authorized representatives of CITY, at all reasonable times, access to and the right to examine all records, books, papers or documents related to CONSULTANT’s performance under this Agreement including, but not limited to, expenses for sub-consultants, agents or assistants, direct and indirect charges for work performed and detailed documentation for all such work performed or to be performed under this Agreement. X. COPIES OF DATA 10.1. Copies or originals of all data collected by CONSULTANT in relation to work associated with this Agreement shall be provided to CITY. Data collected, stored, and/or provided shall be in a form acceptable to CITY and agreed upon by CITY. XI. OWNERSHIP 11.1. Each and every report, draft, work product, drawings, specifications, map, record, and other document reproduced, prepared, or caused to be prepared by CONSULTANT pursuant to or in connection with this Agreement shall be the exclusive property of CITY. XII. CONFIDENTIALITY 12.1. CONSULTANT shall not disclose, publish, or authorize others to disclose or publish, design data, drawings, specifications, reports, or other information pertaining to the projects assigned to CONSULTANT by CITY or other information to which CONSULTANT has had access during the term of this Agreement without the prior written approval of the CITY Attorney during the term of this Agreement and for a period of two (2) years after the termination of this Agreement. XIII. WRITTEN AUTHORIZATION REQUIRED 13.1. CONSULTANT shall not make changes in the job scope or perform any additional work or provide any additional material except as set forth in Paragraph 2.1 under this Agreement without first obtaining written authorization from CITY for such additional work or materials. Additional labor or materials provided without written authorization shall be done at CONSULTANT’s risk and without payment. XIV. DEFAULTS, TERMINATION OF AGREEMENT 14.1. If the Director of Public Works deems that CONSULTANT is in default for failure to supply an adequate working force, or service of proper quality, or has failed in any other respect to satisfactorily perform the services specified in this Agreement, Director of Public Works may give written notice to CONSULTANT specifying defaults to be remedied Design, Installation, and Equipping of New Groundwater Wells Page 3 of 29 within thirty (30) days and such notice shall set forth the basis for any dissatisfaction and suggest corrective measures, and; A. If CONSULTANT does not remedy defaults within thirty (30) days or commence steps to remedy default to the reasonable satisfaction of the Director of Public Works, CITY may provide for such service from another CONSULTANT and CITY may withhold any money due or which may become due to CONSULTANT for such task related to the claimed default; or B. If, after thirty (30) days, CONSULTANT has not remedied defaults or commenced steps to remedy defaults to the satisfaction of the Director of Public Works, CITY may elect to terminate this Agreement at expiration of the thirty (30) days. 14.2. Notwithstanding Paragraph 14.1, CITY reserves the right and may elect to terminate this Agreement at any time. At such time, CONSULTANT would be compensated only for that work which has been satisfactorily completed to the date of termination. No compensation shall be paid for de-mobilization, takedown, disengagement, wind-down or other costs incurred due to termination of this Agreement. XV. INSURANCE 15.1. CONSULTANT shall assume all responsibility for damages to property or injuries to persons, including accidental death, which arise from or be caused by CONSULTANT’s performance of this Agreement, by its subcontractor, or by anyone it directly or indirectly employs, and whether or not such damage or injury shall accrue or be discovered before or after termination of this Agreement. 15.2. CONSULTANT shall obtain, pay for, and maintain during the life of this Agreement a Commercial General Liability policy, including Contractual Liability, and an Automobile Liability policy, which shall protect it and CITY from claims for injuries and damages. The policy shall name the City of Downey, its officers, agents, and employees as additional insureds under the policy in the following amounts: 15.2.1. Commercial General Liability Insurance in an amount not less than two million dollars ($2,000,000) per occurrence for personal injuries, including accidental death, to any one person; property damage insurance in an amount not less than one million dollars ($1,000,000) and subject to the above limits and combined single limit of insurance in an amount not less than two million dollars ($2,000,000); and 15.2.2. Automobile Liability Insurance shall be endorsed for all owned and non- owned vehicles with a combined single limit in an amount not less than two million dollars ($2,000,000) per occurrence for personal injuries, including accidental death, to any one person; and for property damage. 15.2.3. Both commercial general liability and automobile liability policies shall contain a Severability of Interests’ clause and a “Primary Coverage” clause for any loss arising from or caused by CONSULTANT’s performance of the Agreement. In addition, the policies shall contain a statement of obligation on the carrier’s part to notify CITY, by registered mail, at Design, Installation, and Equipping of New Groundwater Wells Page 4 of 29 least thirty (30) days in advance of any policy cancellation, termination, or reduction in the amount of coverage. 15.2.4. CONSULTANT shall furnish the required certificate(s) of insurance and endorsement(s) before CITY executes this Agreement. Before starting operations under this Agreement, CONSULTANT shall furnish the CITY with a “certificate of insurance” and an “additional insured endorsement,” both documents countersigned by the insurance carrier or its authorized representative, on forms satisfactory to the CITY Attorney, which set forth the above provisions. 15.2.5. The countersigned certificate, along with the additional insured endorsement, shall state: “The City of Downey, its officers, agents, and employees are named as additional insureds under this policy. This insurance is primary to the coverage of the City of Downey. Neither CITY nor any of its insurers shall be required to contribute to any loss. This policy contains a severability of interests clause.” 15.2.6. Additionally, the certificate of insurance and the additional insured endorsement shall state: “The issuing company shall mail thirty (30) days advance notice to the CITY of any policy cancellation, termination, or reduction in the amount of coverage.” 15.3. CONSULTANT’s failure to obtain, pay for, or maintain any required insurance shall constitute a material breach upon which CITY may immediately terminate or suspend this Agreement. At its discretion, CITY may obtain or renew the insurance and pay all or part of the premiums. Upon demand, CONSULTANT shall repay CITY all monies CITY has paid to obtain or renew the insurance, or CITY may offset the cost of the premium against any monies due CONSULTANT from CITY. 15.4. Workers’ Compensation Insurance 15.4.1. CONSULTANT understands and agrees that all persons furnishing services to CITY under this Agreement are, for the purpose of workers’ compensation liability, employees solely of CONSULTANT and not of CITY. CONSULTANT shall bear the sole responsibility, liability and costs of furnishing workers’ compensation benefits to its employees, or anyone it directly or indirectly employs, for injuries arising from or connected with services performed on behalf of CONSULTANT. 15.4.2. All workers’ compensation insurance policies shall bear an endorsement, or shall attach a rider, which provides that carrier will notify CITY, by registered mail, at least thirty (30) days in advance of the policy’s expiration, termination or cancellation. 15.5. Professional Liability Insurance CONSULTANT shall obtain and maintain at its expense Professional liability errors and omissions insurance which includes coverage for professional malpractice, in an amount of no less than two million dollars ($2,000,000). The policy shall provide coverage of all claims occurring during the term of the policy. XVI. WAIVER OF BREACH Design, Installation, and Equipping of New Groundwater Wells Page 5 of 29 16.1. The waiver of either party of any breach of any provision of this Agreement shall not operate or be construed as a waiver of any subsequent breach of that same or any other provision. XVII. INDEMNITY 17.1. CONSULTANT shall take all reasonable precautions to prevent the occurrence of any injury, including death, to any person or any damage to any property arising out of the negligentact or omissions of CONSULTANT, its agents, employees, or subcontractors. 17.2. CONSULTANT shall indemnify, defend and hold harmless the CITY and its officers, agents and employees, against all losses, claims, liabilities, damages and expenses of any nature directly or indirectly arising out of and to the extent caused by any negligentact or omission by CONSULTANT or the employees, agents or subcontractors of CONSULTANT in the performance of this Agreement. XVIII. ENTIRE AGREEMENT 18.1. This Agreement supersedes any and all other Agreements, either oral or in writing, between the parties hereto with respect to the subject matter hereof, and no other Agreement, statement, or promise relating to the subject matter of this Agreement which is not contained herein shall be valid or binding. XIX. ASSIGNMENT 19.1. Neither this Agreement nor any duties or obligations hereunder shall be assignable by CONSULTANT without the prior written consent of CITY. In the event of an assignment by CONSULTANT to which CITY has consented, the assignee or his, her or its legal representative shall agree in writing with CITY to personally assume, perform, and be bound by the covenants, obligations, and Agreements contained herein. XX. SUCCESSORS AND ASSIGNS 20.1. Subject to the provision regarding assignment, this Agreement shall be binding on the heirs, executors, administrators, successors, and assigns of the respective parties. XXI. GOVERNING LAW 21.1. The validity of this Agreement and of any of its terms or provisions, as well as the rights and duties of the parties hereunder, shall be governed by the laws of the State of California. Design, Installation, and Equipping of New Groundwater Wells Page 6 of 29 XXII. TIME IS OF THE ESSENCE 22.1. Whenever a task is to be performed by CONSULTANT, it shall be performed consistent with any time constraints set forth hereunder, including exhibits, time being considered of the essence of this Agreement. XXIII. NOTICES 23.1. All notices hereunder must be in writing and, unless otherwise provided herein, shall be deemed validly given on the date either personally delivered to the address indicated below; or on the third (3rd) business day following deposit, postage prepaid, using certified mail, return receipt requested, in any U.S. Postal mailbox or at any U.S. Post Office; or when sent via facsimile to a party at the facsimile number set forth below or to such other or further facsimile number provided in a notice sent under the terms of this paragraph, on the date of transmission of that facsimile. Should CITY or CONSULTANT have a change of address, the other party shall immediately be notified in writing of such change, provided, however, that each address for notice must include a street address and not merely a post office box. All notices, demands or requests from CONSULTANT to CITY shall be given to CITY addressed as follows: CITY: John Oskoui, P.E. Director of Public Works 11111 Brookshire Avenue P.O. Box 7016 Tel. No. (562) 904-7102 Downey, CA 90241-7016 Fax No. (562) 904-7296 CONSULTANT: Dennis E. Williams President Geoscience Support Services, Inc. P.O. Box 220 Tel. No. (909) 451-6650 Claremont, CA 91711 Fax No. (909) 451-6638 XXIV. NON-DISCRIMINATION IN EMPLOYMENT 24.1. CONSULTANT certifies and agrees not to discriminate against any employee or applicant for employment because of race, color, religion, national origin, ancestry, sex, age or physical or mental disability all as defined and set forth under state and federal law. XXV. SEVERABILITY 25.1. Should any part, term or provision of this Agreement or any document required herein to be executed be declared invalid, void or unenforceable, all remaining parts, terms and provisions hereof shall remain in full force and effect and shall in no way be invalidated, impaired or affected thereby. Design, Installation, and Equipping of New Groundwater Wells Page 7 of 29 XXVI. RECYCLED PAPER 26.1. CONSULTANT shall submit all reports, correspondence, and documents related to the execution of this Agreement on recycled paper. XXVII. FORCE MAJEURE 27.1. Neither party shall be considered in default in the performance of its obligations hereunder or any of them, if such obligations were prevented or delayed by any cause, existing or future beyond the reasonable control of such party which include, but are not limited to, acts of God, labor disputes or civil unrest. Any delays beyond the control of either party shall automatically extend the time schedule as set forth in this Agreement by the period of any such delay. Executed at , California, on the day and year first written. CONSULTANT By: Title: CITY OF DOWNEY ROGER C. BROSSMER, Mayor ATTEST: APPROVED AS TO FORM: JOYCE E. DOYLE, Interim City Clerk YVETTE M. ABICH GARCIA, City Attorney Design, Installation, and Equipping of New Groundwater Wells Page 8 of 29 EXHIBIT “A” DESIGN, INSTALLATION, AND EQUIPPING OF NEW GROUNDWATER WELLS SCOPE OF WORK Task No. 1 – General Administration, Meetings, and Presentations 1.1 Project Kick-Off Meeting The primary objective of the project kick-off meeting will be to meet face-to-face with key project individuals from the City to make sure that everyone understands the intent, objectives, tasks, budgets, schedules, milestones, and deliverables. The kick-off meeting also identifies the individuals who are responsible for implementing each part of the work. Additionally, this meeting provides a forum for discussion of critical path tasks such as permitting and preliminary design, and how those tasks can be efficiently expedited. Prior to the kick-off meeting, GEOSCIENCE will prepare a detailed project schedule and work plan. The project work plan will consist of a simple letter report outlining project milestones, deliverables, team responsibilities, and project execution strategies. 1.2 Project Management & Meeting Attendance Project management will include meeting attendance, quality assurance and quality control reviews, resource management, maintenance of the project schedule and budget, and general administrative coordination. In order to maintain effective communication, GEOSCIENCE will conduct monthly progress meetings with the City to present the status of the project deliverables and to coordinate any outstanding requirements. In addition to the kick-off meeting, GEOSCIENCE will prepare for and attend up to twelve (12) additional meetings (inclusive of progress meetings) with City personnel and other agencies throughout the course of the well installation and equipping project. These meetings will include, but not be limited to, the following: Field meeting with CDPH to further the permitting process, Meeting to discuss the results of the preliminary well design report, Meeting to discuss the preliminary DWSAP documents, Study session to discuss the results of drilling and zone testing, and the proposed well design recommendations, Presentation of the results of well drilling, construction, development, and testing, and Meeting to discuss the results of the preliminary design report for well equipping. Meeting agendas will be prepared by the GEOSCIENCE team for all project meetings and meeting minutes will be provided as necessary. Task No. 2 – Permitting and Regulatory Assistance The construction and equipping of the new wells will be regulated by several State and local agencies. The GEOSCIENCE/RBF team will take the lead in permit acquisition but anticipates that close coordination with City personnel will be required throughout the entire project. It is assumed that direct coordination will be required between the Project Team and Design, Installation, and Equipping of New Groundwater Wells Page 9 of 29 representatives of the appropriate permitting agencies. GEOSCIENCE will take the lead in coordinating acquisition of the well construction permit through the drilling contractor, coordination with CDPH’s on-site inspector, and will prepare preliminary and final DWSAP documents. RBF’s efforts will focus on meeting CEQA compliance and obtaining the necessary permits for temporary discharge of flows during well construction. Additionally, RBF will also provide assistance to the City to obtain approval from CDPH for the two proposed well sites. 2.1 Los Angeles Regional Water Quality Control Board for NPDES Discharge Requirements RBF will support the City to amend its existing or obtain an NPDES permit for discharge of pump-to-waste water from each well. GEOSCIENCE will be responsible for enforcing compliance and overseeing monitoring requirements specified by the dewatering permit. 2.2 California Department of Public Health Approval Prior to drilling, an application for a Well Construction Permit will be required from the County of Los Angeles Department of Public Health. The drilling contractor is expected to apply for and pull this permit prior to start of construction. However, early coordination with the County and CDPH is required to confirm that the location of the proposed well meets setback requirements. RBF will prepare drawings and reports required to obtain CDPH approval for the two well sites. Those drawings generally contain: Plot map showing surrounding street and the well location, 50-ft. and 100-ft. influence circles, Utilities with a 50 ft and 100 ft circumference, such as sewer lines, recycled water lines, oil lines, and underground storage tanks. Although not specifically required by CDPH, it is recommended that design plans of the well equipping project be provided to CDPH for review prior to finalization. As part of this task, RBF has budgeted for one meeting with CDPH as well as e-mail and telephone correspondence during preliminary and final design. This task does not include required engineering reports for amendment to the City’s well operating permit. 2.3 CEQA Compliance RBF will prepare one IS/MND that addresses the environmental effects of well construction in accordance with the CEQA Guidelines. This scope of work assumes that an Initial Study/Mitigated Negative Declaration (IS/MND) will be the appropriate document to satisfy the requirements of the California Environmental Quality Act (CEQA). RBF understands that the project would include the construction of two groundwater wells at two of six sites identified in the RFP. RBF assumes that each of the six candidate sites is fully developed and that no stand alone CEQA-specific technical studies would be required. Existing documentation would be utilized to substantiate conclusions when necessary (e.g., General Plan, General Plan EIR, previous CEQA documentation, etc.). This scope specifically excludes the preparation of an Environmental Impact Report (EIR) and/or the processing of environmental regulatory permits. Tasks associated with preparation of the IS/MND are described below. Design, Installation, and Equipping of New Groundwater Wells Page 10 of 29 A. Research and Investigation This task consists of project research and site reconnaissance to ensure that all reference documents and existing conditions information is current. As part of this task, RBF will research available information, including local planning documents and updated plans/maps via the Internet. RBF will conduct a site visit and record representative site conditions with color photographs. This task also includes an introductory section within the IS/MND, discussing environmental review requirements of the project (pursuant to CEQA) and the local agency guidelines. The introduction will include the project location, environmental setting, existing uses on-site and in the vicinity, and the project description and relevant background/history information. The project description will be based on available information from the City and from other tasks described below. B. Environmental Checklist This section will include a summary page of project information followed by an explanation of factors considered for potential impacts. The Initial Study Checklist will be presented in a four-column layout, identifying impacts according to the following four significance categories: 1) Potentially Significant, 2) Less Than Significant With Mitigation Incorporated, 3) Less Than Significant, and 4) No Impacts. The section will provide a listing of documentation that will be incorporated by reference and notations for all references utilized for the determination. A review of the Initial Study Checklist will be performed to ensure consistency with the current Appendix G of the CEQA Guidelines. C. Environmental Analysis The Environmental Analysis section will provide supporting information for the conclusions rendered in the Environmental Checklist. The IS/MND will analyze all impact categories as mandated by the CEQA Guidelines. Aesthetics . The IS/MND will evaluate the project’s potential aesthetic impacts, focusing on temporary construction-related disturbances and the long-term effects of the new well site. Agricultural Resources . Impacts to agricultural resources would not occur as part of the project. However, the IS/MND will confirm existing conditions and provide conclusions under CEQA in this regard. Air Quality . The primary focus of air quality analysis within the IS/MND will be on short-term construction due to the potential proximity of residential uses to the project site. RBF will quantify project emissions in accordance with SCAQMD methodology, utilizing required modeling software. The air quality discussion will also include a quantification of greenhouse gas emissions and a discussion of global climate change under recent State legislation. Biological Resources . The proposed project sites are located within fully urbanized, residential areas. It is not anticipated that impacts to biological resources would occur as part of the project. Design, Installation, and Equipping of New Groundwater Wells Page 11 of 29 Cultural Resources . Due to the disturbed nature of the project areas, the project is not anticipated to result in impacts to cultural resources. However, the IS/MND will confirm existing conditions and provide conclusions under CEQA in this regard. Geology and Soils . The IS/MND will examine the grading/excavation required for the project, on-site and regional seismic conditions, and exposure of people/structures to adverse seismic affects and soil characteristics (i.e., erosion, expansion, instability) associated with project implementation. Hazards and Hazardous Materials . The IS/MND will include analysis of potential hazards and hazardous materials associated with existing operations at the well sites, in addition to long-term operations associated with the new/upgraded wells. Hydrology and Water Quality . RBF will utilize existing information and documentation to perform its analysis of the project’s potential impacts. The IS/MND will review the project’s affects on drainage and water quality for both the construction process and during long-term operation and provide conclusions under CEQA. Land Use and Planning . The IS/MND will analyze the project’s consistency with the City’s General Plan and Zoning Code. This section will also examine the project’s compatibility with existing surrounding land uses in the site vicinity. Mineral Resources . Impacts to mineral resources would not occur as part of the project. However, the IS/MND will confirm existing conditions and provide conclusions under CEQA in this regard. Noise . The IS/MND will analyze both short-term construction noise and overall changes in ambient noise levels due to long-term operations of the project, particularly due to the proximity of residential receptors to the project site. Population and Housing . The IS/MND will analyze the project’s potential for growth inducement and the possibility for the project to displace housing or people. Public Services . Impacts to Public Services are not anticipated. However, the IS/MND will confirm existing conditions and provide impact analysis in this regard. Recreation . It is not anticipated that the proposed project would affect the operation of any parks or recreational facilities. However, the IS/MND will confirm existing conditions and provide conclusions under CEQA in this regard. Transportation and Traffic . Since the project would generate a negligible number of trips during long-term operations, the primary focus of this section of the IS/MND will be on construction-related traffic. Mitigation measures will be provided (if necessary), particularly in regards to the potential need for a construction vehicle routing plan and/or limitations on the hours for construction deliveries. Utilities and Service Systems . The project itself represents a utility enhancement and it is not anticipated that the well site would require the use of substantial utilities or service systems besides the consumption of electricity for operation of groundwater pumps. D. Initial Study Determination This section will denote the appropriate CEQA action based upon the findings of the Environmental Checklist/Environmental Analysis described above. Design, Installation, and Equipping of New Groundwater Wells Page 12 of 29 E. Graphic Exhibits The environmental document will include up to five (5) exhibits to enhance the written text and clarify the project and potential environmental impacts. Exhibits are anticipated to include: Regional Vicinity Map, Site Vicinity Map, and Conceptual Site Plan. F. Screencheck Draft IS/MND RBF will submit six (6) copies of the Screencheck Draft IS/MND for review and comment by City. This scope of work assumes that any revisions desired by the City will be consolidated into one complete set of comments. Should additional copies be required, additional copies will be provided by RBF at an additional fee. G. Public Review IS/MND Upon finalization of the IS/MND based on City input, RBF will develop a distribution list (previous commenting agencies/parties, responsible public agencies, trustee agencies, and interested parties) for City review and approval and distribute up to thirty (30) copies of the IS/MND for public review. RBF will also post the Notice of Availability for the Draft IS/MND at the County Clerk and send copies of the document to the State Clearinghouse. This scope of work assumes that the City will perform any radius mailing and/or newspaper ad posting for the project. H. Final IS/MND Subsequent to the CEQA-mandated public review period, the Final IS/MND shall be prepared. This document would include the IS/MND and the Mitigation Monitoring and Reporting Program (MMRP). RBF will submit ten (10) copies of the Final IS/MND to the City. 1. Mitigation Monitoring and Reporting Program To comply with Public Resources Code Section 21081.6 (AB 3180), RBF will prepare a Draft MMRP that will be submitted to the City for review and comment. RBF will respond to one complete set of City comments on the Draft MMRP. The MMRP will be defined through working with staff to identify appropriate monitoring steps and procedures in order to provide a basis for monitoring such measures during and upon project implementation. I. Notice of Determination Subsequent to the adoption hearing for the IS/MND, RBF will prepare the Notice of Determination (NOD) for the proposed project and file it with the California State Clearinghouse and the County Clerk. This scope of work assumes that the City will be responsible for the California Department of Fish and Game (CDFG) NOD filing fee, if applicable. Meetings and Coordination Mr. Alan Ashimine will be responsible for quality control, oversight of the analysis, and the management and supervision of the environmental review as well as consultation with the City. Mr. Ashimine will undertake consultation and coordination of the project and review the IS/MND for compliance with CEQA requirements. RBF will attend project meetings, will represent the City at public hearings, and make presentations at these meetings if necessary. This task assumes attendance at two project meetings with City staff and one public hearing. Design, Installation, and Equipping of New Groundwater Wells Page 13 of 29 Additional meetings shall be billed on a Time and Materials basis. Deliverables Deliverables provided by RBF according to the environmental services work program described above would include the following: Six (6) copies of the Screencheck Draft IS/MND; Three (3) copies of the final “Check” Draft IS/MND; Thirty (30) copies of the Public Review IS/MND; and Ten (10) copies of the Final IS/MND. 2.4 City of Downey Planning and Building and Safety Plan Check During preliminary design, RBF will meet with the City to identify requirements from its planning and building and safety departments for the proposed buildings. Based upon this coordination, RBF will prepare schematic architectural elevations showing the proposed buildings. It is assumed that both sites will have buildings that will house the wellhead, electrical, and disinfection equipment. If required, RBF will attend two meetings with the City’s planning and building and safety departments to answer questions regarding the proposed buildings. RBF will prepare for and submit draft and final design plans to the City for plan check for the well equipping bid set. RBF will coordinate with the City to review plan check comments and make revisions to the plans, if necessary. 2.5 Drinking Water Source Assessment and Protection (DWSAP) Program Documents In 1996, the United States Environmental Protection Agency (USEPA) amended the Safe Drinking Water Act to require that all states implement a Source Water Assessment Program (SWAP) for public water systems. The primary purpose of the SWAP program is to promote source water protection by conducting assessments of those sources. California Department of Public Health (CDPH) administers this program in California under the DWSAP program. The DWSAP program provides a proactive “multiple-barrier” approach to protecting drinking water sources by assessing Possible Contaminating Activities (PCAs) within protection area boundaries delineated for a particular source. An assessment of the actual drinking water source and its vulnerability to sources of contamination is also conducted. The ultimate goal of the DWSAP program is to provide a baseline of information that will be used to prioritize and direct source water protection measures. GEOSCIENCE will prepare DWSAP documents in order to assess nearby possible contaminating activities (PCAs) and to meet State of California and County of Los Angeles permitting requirements. GEOSCIENCE will prepare preliminary DWSAP documents prior to construction activities to identify potential sources of contamination that could be of detriment to the water quality of a well installed at each selected site. The particulars of the DWSAP documents will be based on information gathered during preparation of the preliminary design reports in Task 3.0. A final set of documents will be produced following aquifer pump testing and preparation of pump design recommendations. Preparation of the permit documents requires identification of all PCAs within two, five and ten year protection zones for the wells. The protection zones will be delineated using the United States Environmental Protection Agency’s Wellhead Protection Area (WHPA) model and will be shown in relation to PCAs and overlain on a USGS topographical map. A figure showing the well protection zones and PCAs will be attached to the DWSAP documents. Design, Installation, and Equipping of New Groundwater Wells Page 14 of 29 GEOSCIENCE will submit preliminary and final DWSAP documents for both well sites in electronic (i.e., PDF) form with three (3) bound hard copies. DWSAP documents will also be submitted to CDPH to further the Domestic Water Supply Permit Amendment process. Task No. 3 – Site Assessment & Preliminary Design Report (WELL INSTALLATION) 3.1 Site Assessment Report Based on readily available data, and field reconnaissance of each site, the GEOSCIENCE team will prepare a brief site assessment of each of the six (6) potential well sites identified by the City in the RFP. Each site will be evaluated as to its suitability for installation of a municipal water supply well, including, but not limited to the following factors: Aquifer production and storage potential, Groundwater quality and potential environmental hazards, Well interference, Proximity to abandoned or destroyed wells, Access and area constraints for well drilling, equipping, and well maintenance activities, Site layout, Potential impacts to the public, Proximity to existing water/storm water and other utility infrastructure, Hydraulic issues & constraints, Site security, Proximity to sanitary hazards, Land use, and Preliminary cost comparisons. Based on the initial hydrogeological study and expected well yields RBF will analyze the City’s water distribution system to verify its adequacy to accept the additional flow that will be introduced from the new groundwater wells and identify potential impacts to existing facilities and operations. RBF will analyze up to 6 alternative well sites. RBF will utilize the City’s existing water system hydraulic model (MWH InfoWater) to simulate inclusion of the new wells in the distribution system. A technical memorandum will be prepared summarizing the findings and resultant recommendations of the analysis. The overall evaluation will be quantified using a decision matrix and each site will be ranked according to suitability. Results of the site assessments will be presented to the City as a technical memorandum. GEOSCIENCE will submit an electronic copy of the site assessments to the City at the 100% DRAFT stage for review and comment. Upon incorporation of comments, GEOSCIENCE will submit an electronic copy of the 100% FINAL site assessment in addition to five (5) bound hard copies. The GEOSCIENCE team will attend one meeting with the City following submittal of the draft site assessment report to discuss the results and reach consensus on the two optimal well sites. 3.2 Preliminary Well Design Report (PDR) In preparation of the preliminary PDR, GEOSCIENCE will revisit the selected drilling locations to identify and assess any logistical issues that may need to be addressed. As necessary, GEOSCIENCE will supplement background information and geohydrologic data obtained during the site assessments in order to achieve a thorough understanding of the geohydrology Design, Installation, and Equipping of New Groundwater Wells Page 15 of 29 of the areas. GEOSCIENCE has much of this data already stored within our in-house database and GIS systems. This data will include, but is not necessarily limited to: Construction details of all existing wells in the vicinity of the production well; Lithologic and geophysical logs from existing wells and any other exploratory boreholes that have been drilled in the area of the well sites; All relevant pumping and aquifer test data, including well performance characteristics and SCE test data; Historical ground water elevation data; Groundwater production and storage history; Groundwater quality information (depth-specific, if available); Pertinent data from nearby WRD multiple completion monitoring wells; Well rehabilitation records; Locations of utilities such as water transmission lines and hydrants, gas transmission lines, electrical lines, sewer lines and manholes, and storm drains. The PDR will summarize the evaluation of the two selected well sites and will include expected groundwater quality, groundwater levels, potential well production and storage, potential well interference, construction logistics and conflicts, environmental issues, and appropriate CDPH separation distances from existing utilities infrastructure. The report will also include preliminary designs for the production wells, preliminary site layouts, a basis of design, a planning-level estimate of contractor costs for well installation, preliminary design drawings, and a preliminary construction schedule. The preliminary layouts will include the wellhead, discharge and pump-to-waste piping and valving, meter location, disinfection facilities, building footprint, emergency generator, electrical equipment, site perimeter fencing, gate, and access driveway. At a minimum, the PDR will include the following construction details: Site layouts; Expected geohydrologic conditions and impact on drilling; Estimated production and storage capacity; Recommended well drilling method; Expected depth and diameter of the well; Recommended casing materials & dimensions; Depth of screened intervals; Filter pack gradation; Well appurtenances (i.e., sounding and gravel feed tube design); Site access considerations; Discharge considerations; Cuttings disposal; Sequence of drilling operation; and Noise abatement measures to be taken during drilling. GEOSCIENCE will submit an electronic copy of the PDR to the City at the 100% DRAFT stage for review and comment. Upon incorporation of comments, GEOSCIENCE will submit an electronic copy of the 100% FINAL PDR in addition to five (5) bound hard copies. Task No. 4 – Technical Plans, Specifications, & Bidding Assistance (WELL INSTALLATION) Design, Installation, and Equipping of New Groundwater Wells Page 16 of 29 4.1 Prepare Technical Plans & Specifications GEOSCIENCE will prepare detailed technical plans and specifications for the new production wells. GEOSCIENCE assumes one well construction contract for both wells, and thus one document containing technical plans and specifications. The technical plans and specifications will be bundled with the City’s existing General Specifications front-end documents. The front- end documents will be modified as necessary to suit the specific project. Additionally, detailed bid schedules will be prepared to be included with the bid packages, with specific line items showing units and unit quantities for the construction of the wells. Items included in the technical specifications will include (but are not necessarily limited to) the following: Construction surveying; Estimate of Contractor construction costs; Well location, depths, dimensions, and materials; Expected geohydrologic conditions; Permits and regulatory requirements; Compliance with discharge requirements, as necessary; Preparation and compliance with Storm Water Pollution Prevention Plan (SWPPP). Job conditions (e.g., noise suppression, drilling waste, runoff management, power, lighting, water, security, sanitation, parking, traffic control, and work damage); Mobilization, demobilization, clearing, grubbing, and site cleanup; Destruction of existing wells; Recommended drilling methods and potential drilling problems; Equipment, materials, and records to be furnished by the contractor; Records to be kept by the contractor; Well drilling, zone testing, and construction procedures, including: Drilling, installation, and cementing of conductor casing, o Pilot-borehole drilling, o Geophysical borehole logging (i.e. short- and long-normal resistivity logs, guard o or lateral logs, self potential log, gamma ray, and sonic), Isolated aquifer zone testing, o Final borehole drilling (reaming pass), o Alignment, plumbness, borehole integrity, and drilling speed, o Well casing and screen installation, o Gravel access and sampling tube installation, o Filter pack material selection and approved placement method, o Annular cement seal installation. o Well development procedures, including: Initial airlift development between packers, o Development by wireline swabbing and bailing (if necessary), and o Development by pumping. o Aquifer pumping and recovery tests, and spinner (flowmeter) survey; Downhole video camera and gyroscopic alignment surveys; Well disinfection, well cover, final inspection, and Project closeout. GEOSCIENCE will submit electronic copies (i.e., PDF) of a 90% DRAFT and 100% DRAFT version of the technical plans and specifications to the City for review and comment. It is assumed that the City will provide two rounds of comments. Comments to the draft versions will be incorporated and GEOSCIENCE will submit one (1) electronic copy and one (1) bound Design, Installation, and Equipping of New Groundwater Wells Page 17 of 29 hard copy of the 100% FINAL technical specifications for the wells. The technical specifications, front-end documents, and construction drawings will be prepared in the City’s preferred format (i.e., Arial 12 and CSI 3-Part Section Format) using Microsoft Word 2003 and the latest version of AutoCAD. Construction drawings will be provided to the City as size Arch D in bond, electronic (i.e., CAD), and Mylar formats, and will be stamped and signed by a California Registered Civil Engineer. 4.2 Bidding Assistance GEOSCIENCE will attend a pre-bid meeting with interested contractors and City personnel at the beginning of the bidding process to discuss key issues in the technical specifications, and to answer all questions regarding site conditions, preliminary well design, schedule and other hydrogeologic or contractual matters. During the bidding process GEOSCIENCE will respond to bidder’s questions and prepare bid addenda as necessary. Once the bidding process is complete, GEOSCIENCE will review and evaluate all bids received and will provide recommendations regarding award of the construction contracts. It is assumed that the well construction for both wells will be bid as one contract. Task No. 5 – Well Construction Inspection and Management Services 5.1 Construction Management & Coordination GEOSCIENCE will provide construction management services during the construction process to ensure that the geohydrologic aspects of the project are carried out in a proper and efficient manner. Construction management activities will include: review of contractor submittals, review of contractor invoices to ensure accuracy and completeness, review of and response to contractor Request for Information (RFIs) and change order requests for legitimacy, preparation of a final “punch list”, and filing of essential paperwork, correspondence, field notes, etc. Daily email and/or phone updates will be provided to the City along with submittal of relevant photographs and daily field logs. All changes to the design will be noted and recorded in the field for use in preparation of Record (i.e., as-built) Drawings at the completion of the construction work. Additionally, GEOSCIENCE will periodically monitor the site and immediate surroundings for compliance with the local noise ordinance during construction. 5.2 Pre-Construction Meeting and Pre-Mobilization Coordination with Contractor GEOSCIENCE will attend one pre-construction meeting with the selected contractor and City personnel to review key issues within the contract documents and plans/technical specifications. In addition, questions will be addressed regarding hydrogeologic and logistical matters. Items to be discussed at the meeting will include (but not be limited to) required submittals and inspections, permitting, discharge issues, work schedule, invoicing, and communication protocols. Additionally, at the time of the pre-construction meeting, the prospective contractor will have the opportunity to visit the well site to satisfy themselves regarding conditions that may affect equipment set up. At the time of the meeting, the contractor will have the opportunity to point out any issues that he/she may have regarding preparation of the site for the work. GEOSCIENCE will coordinate contractor activities prior to mobilization. This will include verifying that the contractor has provided all submittals required by the plans and technical specifications and that equipment delivered to the site meets the requirements of the plans and specifications. For cost estimating purposes it is assumed that one pre-construction meeting will be necessary for both wells. Design, Installation, and Equipping of New Groundwater Wells Page 18 of 29 5.3 Conductor Installation Full-time on-site field inspection will be provided during drilling of the conductor borehole, and installation of the conductor casing and sanitary cement seal, to ensure that all materials are furnished and installed in accordance with the technical specifications and regulatory requirements. GEOSCIENCE will coordinate with CDPH’s on-site inspector during installation of the sanitary cement seal. 5.4 Pilot Borehole Drilling and Geophysical Logging Field inspection will be provided on a part-time basis during pilot borehole drilling. Formation samples will be collected at 10 ft intervals by the drilling contractor per GEOSCIENCE protocol (or more frequently depending on the stratigraphy encountered). Samples will be identified as to material type and production potential by visually logging them in the field using the Unified Soil Classification System (USCS). Upon completion of the pilot borehole drilling, GEOSCIENCE personnel will provide full-time onsite inspection of the geophysical borehole logging (i.e., short- and long-normal resistivity, guard or lateral, self potential, gamma-ray, and sonic logs). Lithologic chip trays will be prepared and provided to the City at the completion of pilot borehole drilling. 5.5 Evaluate Geophysical Logs and Select Zones for Isolated Aquifer Zone Testing Permeable and non-permeable formation material will be identified from the geophysical borehole logs and from the samples collected during drilling. Based on this information, as well as information collected during the drilling process, recommendations will be made for the selection of zones (i.e., depth intervals) for isolated aquifer zone testing. The purpose of isolated aquifer zone testing is to determine both yield and water quality from the potential completion interval(s) before determining the final well design. Based on the anticipated depth of the pilot boreholes, we are estimating that four (4) to five (5) zones will be tested per borehole. Recommendations for isolated aquifer zone testing will be provided to the City in letter form for review within 24 hours of the completion of geophysical logging. 5.6 Isolated Aquifer Zone Testing Once depth intervals for aquifer zones have been identified for selective zone testing, construction of the zones by the contractor will begin. GEOSCIENCE will provide part-time inspection during construction and testing of each zone. Specifically, GEOSCIENCE will provide inspection during zone construction, initial zone airlifting, initial zone pumping, and during the last six (6) hours of zone pumping prior to water quality sample collection. GEOSCIENCE always recommends that zone testing be performed at discharge rates exceeding 200 gallons per minute (gpm) to ensure that representative sampling of the aquifer is taking place and that the aquifer is being sufficiently stressed to provide the best available field data. Whenever possible, turbidity measurements taken from the discharge water should be less than 10 nephelometric turbidity units (NTUs) before collecting water quality samples from any given zone. After each zone has been appropriately developed, water samples will be collected by GEOSCIENCE personnel and delivered to a State of California certified water quality testing laboratory for general mineral and physical properties analysis (or any other analyses specific to the well site as may be required). For cost estimating purposes, it is assumed that the City Design, Installation, and Equipping of New Groundwater Wells Page 19 of 29 will be responsible for the water quality laboratory fees and will contract directly with the laboratory. Field measurements will also be collected by GEOSCIENCE during each zone test to determine field parameters such as pH, temperature, electrical conductivity, and turbidity. Additionally, the discharge rate, and static and pumping water levels, will be measured frequently during pumping of each zone such that each zone’s productivity can be determined (including pressure head and specific capacity). The zone selection and recommended water quality analytical suite will be presented to the City for approval prior to implementation in the field. It is recommended that the ground water quality samples collected from the zone testing be analyzed on a 72-hour turn-around time (i.e., rush) as the results of these analyses are integral for determining the screen interval(s) for the final well design. 5.7 Additional Isolated Aquifer Zone Testing GEOSCIENCE will provide part-time inspection for two (2) additional zone tests (one additional zone per well beyond the four tests per well budgeted) per Task 5.6 above should it be deemed necessary upon review of the borehole lithology and geophysical logs. 5.8 Mechanical Grading Analysis Using the visual and geophysical logs collected from the pilot borehole, up to eight (8) formation samples per well will be selected for mechanical grain size (i.e., sieve) analysis to assess permeability, sand migration potential, and uniformity coefficients. These analyses will be used as a basis for preparing the custom filter pack and well screen design for each well. 5.9 Preparation of Final Well Design Although the anticipated dimensions of the well casing and screen, and the materials used to manufacture them will be identified during the preliminary design phase, ultimately these details will be determined based on the results of the borehole lithology, geophysical logs, and anticipated production rate. Use of a properly designed and installed filter pack will control sand production from the well when pumping. Selection of filter pack material will be determined from mechanical grading analysis, and will be designed based on industry standards regarding pack-to-aquifer ratios. The size of the screen openings will be designed to allow a minimal but acceptable amount of filter pack material to move through the screen. This controlled movement of filter pack material will permit the proper development of the filter pack and near-well zone. Based on results from the mechanical grading analyses, GEOSCIENCE will design the filter pack with a pack to aquifer ratio of between 4 and 20, as well as using Terzaghi’s criteria for the movement of fines through the filter pack, and for the permeability of the aquifer and filter pack. Based on geophysical logs, mechanical grain size analysis, and isolated aquifer zone testing, targeted aquifers will be identified. The final well design will include recommended depth intervals and diameters for the well casing and screen, recommended borehole diameter(s), and the proper screen opening size to complement the filter pack design. Recommended depths for the well appurtenances and deep annular seal will also be provided as necessary. GEOSCIENCE will meet with City personnel to discuss the draft recommended well design prior to finalization and implementation in the field. Design, Installation, and Equipping of New Groundwater Wells Page 20 of 29 It is our understanding that the City’s recently completed Master Plan has identified a potential opportunity to supplement water supplies by diverting, treating, and injecting recycled water into the aquifer systems through use of aquifer storage and recovery (ASR) wells. To that end, each of the new wells will be designed and constructed as ASR wells, including installation of a 100 ft surface casing and cement seal, and with large diameter well casing and screen (i.e., 20 inch ID or greater). 5.10 Borehole Reaming During reaming (enlargement) of the pilot borehole to its final design diameter(s) and depth, part-time field inspection will be provided to ensure that the work is performed correctly, and that drilling fluid properties are maintained within the parameters defined by the technical specifications. 5.11 Installation of Casing, Screen, Filter Pack, and Annular Seal Full-time (i.e., 24 hour) inspection will be provided during installation of the casing, screen, appurtenances, filter pack, and annular seal to ensure that all materials are furnished and placed in accordance with the recommended design and technical specifications. Prior to installation, GEOSCIENCE personnel will inspect the filter pack material and the well casing and screen for compliance with the specified well design. As the filter pack and cement seal are being installed, GEOSCIENCE personnel will track the volume placed against the volume calculated from the caliper log to ensure that there are no voids or bridges forming within the annular space. All field changes will be recorded for preparation of the Record Drawings. 5.12 Initial Well Development by Airlifting and Swabbing Initial well development by airlifting and swabbing is an extremely important component of the well completion and development process. GEOSCIENCE anticipates that at least 120 hours of initial airlift development will be necessary for each well. GEOSCIENCE will provide part-time inspection during the airlift development process and will closely monitor discharge water turbidity and sand content to track the development progress of the well. 5.13 Final Well Development by Pumping and Surging GEOSCIENCE will monitor final development by pumping and surging on a part-time basis. Tests for sand content and specific capacity will be performed frequently to measure the advancement of the development process and to ensure that the well is fully developed before beginning the aquifer pumping tests. Well development is considered complete once specific capacity approaches a maximum and sand content within the discharge approaches a minimum. 5.14 Aquifer Pumping Tests Once the well development process is considered complete, aquifer pumping tests will be performed to determine well and aquifer characteristics. If possible, nearby wells will be monitored in order to provide interference data and enable more accurate estimation of aquifer parameters. The following aquifer pumping tests will be performed: Step Drawdown Pumping Test: time drawdown measurements will be made to determine specific capacity and well efficiency relationships that are necessary to calculate the optimal production rate and pump setting. Typically three to four rates are selected for pumping, beginning with the lowest rate and progressing to the highest. Design, Installation, and Equipping of New Groundwater Wells Page 21 of 29 Constant Rate Pumping and Recovery Test: time drawdown and recovery measurements will be made to estimate aquifer parameters. If possible, nearby wells will also be monitored to obtain interference ground water levels during the test. Toward the end of the constant rate test, GEOSCIENCE personnel will collect ground water quality samples and deliver them to a laboratory certified by the State of California for analysis of water quality constituents required by the State of California’s Title 22 Rule. It is assumed that the City will be responsible for the water quality laboratory fees and will contract directly with the laboratory; thus water quality analysis fees are not included in this proposal. GEOSCIENCE will also provide full-time inspection of flowmeter (spinner) testing typically conducted during the latter portion of the constant rate testing. The flowmeter testing will be conducted by a company subcontracted by the drilling Contractor. 5.15 Video and Gyroscopic Alignment Surveys and Final Disinfection Following removal of the test pumping equipment and bailing of the bottom of the well, GEOSCIENCE will provide full-time inspection of a final downhole video survey to document the post-construction condition of the well. GEOSCIENCE will also provide full-time inspection for a gyroscopic alignment survey of the well, the purpose of which is to measure well verticality and alignment. Full-time Inspection of the final chlorination of the well will be provided to ensure that approved disinfection materials, concentrations, and methods are utilized by the contractor. 5.16 Wellhead Completion and Post-Construction Site Condition GEOSCIENCE will provide full-time inspection of the final wellhead completion to ensure that the well casing and appurtenances are finished as described by the technical specifications and/or well design. The post-construction condition of the well site will also be inspected to ensure that all equipment, materials, and trash have been removed and that the site has been restored as closely as possible to its original condition. GEOSCIENCE will prepare a preliminary and final “punch list” of work remaining to be completed and will attend a final site walkthrough with the contractor’s representative and City personnel. 5.17 Pump Design Recommendations Data from the pumping tests will be analyzed and recommended operational parameters will be provided to the City in letter format, including design pumping rates, short- and long-term drawdown characteristics, well efficiencies, and recommended pump settings. These recommendations will be critical to the equipping engineer (RBF), in design of the final well pump and motor. Task No. 6 – Comprehensive Well Completion Summary Report At the conclusion of well construction activities, GEOSCIENCE will prepare detailed final well completion reports for each well that summarize the details of drilling, construction, development, and testing. The reports will, at a minimum, include the following: Chronology of activities; Lithologic log based on the drill cuttings; Mechanical grading analyses; Geophysical, video survey, and gyroscopic alignment survey logs; Design, Installation, and Equipping of New Groundwater Wells Page 22 of 29 An as-built diagram of the new well; Analyses and results of aquifer pumping tests; Zone test and Title 22 water quality data; Aquifer pumping test results; Recommended pump setting, production and storage rates, short- and long-term drawdown; California DWR well completion report; Record (i.e., as-built) Drawings; and Other pertinent data and analytical results. GEOSCIENCE will submit an electronic copy and three (3) bound hard copies of each of the 100% FINAL well completion summary reports (two reports). Each well will have its own report. Task No. 7 – Preliminary Design Report (Well Equipping) 7.1 Preliminary Design Report RBF will prepare a PDR, documenting the well equipping design for each well. The reports will provide a description of the well equipping systems, including well pump/column pipe/motor design criteria, waste discharge system, discharge piping and appurtenances, disinfection system, power requirements, backup power system, and any recommended modifications to existing facilities, if required. The PDR will analyze alternative well enclosures/access features for the City for both aesthetic (appearance and noise) and maintenance (well rehab) purposes and identify benefits and disadvantages of each alternative. The report will also analyze the cost/benefits of equipping the wells for both aquifer storage and recovery capabilities (i.e. ASR). RBF will provide a concept ASR well layout sufficient for providing an adequate estimate of capital cost for the ASR option. Included in the cost analysis will be the potential for energy recovery using conventional or in-pipe turbines. The report will include a preliminary schedule for completing the final design and construction of well equipping, and a preliminary engineer’s estimate of probable construction cost. The report will reiterate the mitigation factors identified in the CEQA Mitigated Negative Declaration document for this project and describe how these mitigation factors have been taken into consideration in the proposed design. Three (3) bound hard copies and one electronic (i.e., PDF) copy of the draft report will be provided to the City for review and comment. City comments will be incorporated into the final report. Four (4) bound hard copies and one electronic copy of the final report will be provided to the City. 7.2 Analysis of Alternative Power Supply and Backup Power RBF will prepare a present worth analysis that evaluates the capital and annual operating costs of electric motors versus natural gas-driven engines as the primary power source for the wells. The analysis will take into consideration TOU and GN rates for electricity and natural gas, respectively. The analysis will also include a cost comparison for providing a portable diesel generator versus installing a permanent diesel or natural gas generator at each well site for backup power. The analysis will identify permitting requirements from SCAQMD, permitting costs, and potential for rebates from SCE and SCG. Design, Installation, and Equipping of New Groundwater Wells Page 23 of 29 Task No. 8 – Plans and Specifications (Well Equipping) 8.1 Plans and Technical Specifications RBF will prepare a set of Contract Documents; Plans, Specification, and Engineer’s Estimate of Probable Construction Cost (PS&E) required for obtaining Contractor’s bids for the Well Equipping project. The City will provide its standard “front end” documents to RBF for incorporation in the project’s Contract Documents. For cost estimating purposes, the GEOSCIENCE / RBF team assumes one well equipping contract for both wells. There is an optional item included in the cost proposal for the additional costs required should the City decide to bid the well equipping as two separate packages. The level of effort for this task is based upon the following assumptions: One bid set will be prepared for the two wells. Each well will be housed within a small block masonry building (approximately 20’ x 30’) with a standing seam metal roof. The buildings will house the wellhead and electrical equipment, and will provide space for future disinfection equipment, if required. The building layouts for each site may vary somewhat from one another but are anticipated to be the same material, similarly sized, and detailed. Space will be provided in the buildings for an emergency disinfection system assuming the system will be bulk sodium hypochlorite. The well pump will be a vertical turbine deep well pump with electric motor. Backup generator will be a diesel or natural gas generator as determined in 7.2, housed outside in a sound-attenuated enclosure Topographic survey files will be provided to RBF by the City in AutoCAD format, sufficient for use as base files for the design. Traffic control will be per MUTCD and WATCH Manuals. Preparation of traffic control plans is excluded. Landscaping and irrigation at each site will be limited and therefore one landscape/irrigation plan sheet is provided for each well site. Design of ASR wells is not included in the final design effort. Plans: The Contract Documents will cover the necessary aspects of the Well Equipping project, including but not limited to the following: 1. One plan set for Well Equipping (Assumes 52 drawings as detailed below) 2. General conditions such as permitting, noise control, site security, and conduct, OSHA compliance, dust control, hours of operation, etc., will be provided upon consultation with the City. 3. Specifications to include: pump and motor, standby generator, piping and related items, water meter, electrical conduit and space provisions for future disinfection system, electrical, control and motor control center, Local Well RTU/PLC, block masonry building with standing seam metal roof, on-site drainage and discharge requirements, site work, site perimeter/walls and modest landscaping/irrigation, quality control and testing, parking/traffic control, and security/lighting improvements. Specifications will be prepared in CSI format on Microsoft Word platform. Design, Installation, and Equipping of New Groundwater Wells Page 24 of 29 4. Budget is based on providing the following plan sheets: G1 Title Sheet G2 Drawing List, General Notes, Basis of Bearing, Benchmark, Legend and Abbreviations C1 Well No. 1: Site Plan, Grading and Paving Plan C2 Well No. 1: Site Piping Plan, Sections and Details C3 Well No. 2: Site Plan, Grading and Paving Plan C4 Well No. 2: Site Piping Plan, Sections and Details C5 Civil Details C6 Well No. 1: Discharge Pipeline Plan and Profile (1,000 ft, at 40’ = 1” scale) C7 Well No. 1: Discharge Pipeline Plan and Profile (500 ft, at 40’ = 1” scale) C8 Well No. 1: Pump-to-Waste Pipeline Plan and Profile (1,200 ft, at 50’ = 1” horizontal scale) C9 Well No. 2: Discharge Pipeline Plan and Profile (1,000 ft, at 40’ = 1” scale) C10 Well No. 2: Discharge Pipeline Plan and Profile (500 ft, at 40’ = 1” scale) C11 Well No. 2: Pump-to-Waste Pipeline Plan and Profile (1,200 ft, at 50’ = 1” horizontal scale) D1 Piping Details D2 Piping Details L1 Well No. 1: Landscape and Irrigation Plan L2 Well No. 2: Landscape and Irrigation Plan M1 Well No. 1: Well Mechanical Plan and Sections M2 Well No. 2: Well Mechanical Plan and Sections M3 Well Details M4 Well Details M5 Well No. 1: Generator Plan and Sections M6 Well No. 2: Generator Plan and Sections M7 Well No. 1: Future Chemical System Plan M8 Well No. 2: Future Chemical System Plan S1 Well No. 1: Structural Foundation and Roof Plans S2 Well No. 1: Structural Sections S3 Well No. 2: Structural Foundation and Roof Plans S4 Well No. 2: Structural Sections S5 Structural Details A1 Well No. 1: Floor and Roof Plans A2 Well No. 1: Exterior Elevations A3 Well No. 2: Floor and Roof Plans A4 Well No. 2: Exterior Elevations A5 Door Schedule and Details – Well No.’s 1 & 2 A6 Miscellaneous Architectural Details H1 Well No. 1: HVAC Plan and Details H2 Well No. 2: HVAC Plan and Details E1 Electrical Symbols, Notes, and Abbreviations E2 Well No. 1: Single Line Diagram E3 Well No. 2: Single Line Diagram E4 Well No. 1: Conduit and Power Plan E5: Well No. 2: Conduit and Power Plan E6 Well No. 1: Conduit and Panel Schedules E7 Well No. 2: Conduit and Panel Schedules E8 Motor Elementary Diagram (Typical for Well No.’s 1 & 2) E9 Details & Elevations (Typical for Well No.’s 1 and 2) E10 Future Disinfection System Plan and Details (Typical for Well No.’s 1 & 2) E11 Well No. 1: PLC Connection Diagram (Typical for Well No.’s 1 & 2) I1 Process and Instrumentation Diagram #1 – Instrumentation abbreviations and Symbols I2 Process and Instrumentation Diagram #2 – Well Pump System (Typical for Well No.’s 1 & 2) I3 Process and Instrumentation Diagram #3 – Future Chemical Feed System (Typical for Well No.’s 1 & 2) Submittals: RBF will provide six (6) – full size (Arch D) copies of design submittals for City review at 50%, 90%, and final completion stages. The final submittal will include signed/stamped mylars and three (3) full size bond copies of the final signed/stamped plans. Design, Installation, and Equipping of New Groundwater Wells Page 25 of 29 At 90% completion, RBF will submit any requested design calculations and catalog cuts of all selected/specified equipment and revised engineer’s estimate of probable construction cost to the City for their review. 8.2 Geotechnical Analysis A geotechnical investigation of two proposed well sites and the proposed pipeline alignments will be performed by RBF’s geotechnical subconsultant, as follows: 1. Geotechnical subconsultant will conduct a background review of available published regional and site-specific geologic and geotechnical maps, reports, and data pertinent to the subject project site; site reconnaissance to evaluate surface conditions and locate boring locations; field exploration coordination, including public utility clearance as required by law, set up of subcontractors and supplies, obtaining no-fee permits for City property/right-of-way encroachment, as necessary. 2. Geotechnical subconsultant will perform a field exploration, including 2 small-diameter hollow stem auger borings as described below: a. Drill, sample, and log 2 borings (one at each well site) to about 25-feet in depth; and 2 along the proposed pipeline alignments (one for each well) to about 15- feet in depth in order to evaluate subsurface soil conditions; 3. Geotechnical subconsultant will conduct laboratory testing of samples collected to evaluate engineering soil properties pertinent to the design and construction of the well sites and pipelines, including moisture and density, compaction, consolidation, expansion index, grain size, direct shear, corrosivity, and R-value. 4. Geotechnical subconsultant will perform a geotechnical analyses of the data collected, including temporary stability of excavations, and on-site soil backfill suitability, foundations, active and passive earth pressures, buoyancy, pipe bedding, shoring, dewatering, pavement, and corrosive soils. 5. Geotechnical subconsultant will prepare an initial geotechnical report summarizing findings, conclusions, and geotechnical recommendations in regards to design and construction of the planned pipelines and well housings in compliance with applicable regulations. 8.3 Bidding Assistance RBF will provide construction bidding services including attending one pre-bid meeting, responding to contractor questions and issuing addenda, review of bids and recommendation for contract award. This task item assumes one bid package for the well equipping. Task No. 9 – Well Construction Inspection and Management Services (Well Equipping) For cost estimating purposes, the GEOSCIENCE / RBF team assumes one well equipping contract for both wells. There is an optional item included in the cost proposal for the additional costs required should the City decide to bid the well equipping as two separate packages. 9.1 Pre-Construction Meeting (1 Meeting) RBF will conduct one pre-construction meeting for the well equipping contract, including preparation of agenda, supporting the City during the meetings and or facilitating the meetings, and preparation of meeting minutes. Design, Installation, and Equipping of New Groundwater Wells Page 26 of 29 9.2 Construction Management & Coordination (1 Construction Contract) Submittal Review and RFI Review: RBF will review shop drawings, material submittals, working drawings, requests for information, samples and all other data required to be submitted by the Contractor for conformity with the contract plans and specifications. For cost estimating purposes, RBF has budgeted for a total of 65 separate submittal packages and 15 RFI’s for review, including resubmittals. For budgeting purposes, a submittal package which may consist of multiple material submittals, shop drawings, etc. Field Meetings: RBF’s Project Engineer will attend periodic meetings in the field, as requested by the City. For cost estimating purposes, RBF has budgeted for a total of two field meetings during construction. Start-Up Assistance: RBF will provide three (3) days of start-up assistance by the Project Engineer and Electrical Engineer upon substantial completion of construction. This is to include start-up and testing of each well pump, backup power systems and all associated system mechanical and electrical. Record Drawings: RBF will prepare Record Drawings based upon the Contractor’s and RBF’s redlined “As-Built” drawings. RBF will provide 3 full-size bond copies of the record drawings, along with the Contractor’s “As-Built” drawings for review. RBF will incorporate the City’s comments into the final Record Drawings submittal, which will include an electronic file (PDF and CAD) and one set of Mylars for the contract. 9.3 Construction Inspection (1 Construction Contract) RBF will provide construction inspection services during the equipping of both wells, which are assumed to be under one construction contract. RBF will provide one full-time inspector for the two sites to verify that the contract is sufficiently administered and to ensure compliance with plans/specifications during construction. RBF will prepare and submit daily inspection reports to the Project Manager, and will provide a weekly photo log of the project construction. For budgeting purposes, RBF has assigned one full-time inspector for 18 weeks (40 hours/week) for in-field inspection. RBF’s inspector will perform the following for the well equipping construction contract: Drawings Interpretation and Sketches: RBF will interpret the drawings and specifications, including the preparation of elementary sketches, to clarify design details for the proposed facilities. RBF will resolve field conflicts after consultation with City Staff. Submittal and RFI Logs Maintenance: RBF will receive, log, track, and forward to the RBF Design Engineer for his review: shop drawings, material submittals, working drawings, requests for information, samples and all other data required to be submitted by the Contractor for conformity with the contract plans and specifications. RBF will document and submit responses to the Contractor and to the City after consultation with City Staff. Substitute Materials / Equipment: RBF will evaluate and determine the acceptability of substitute materials and equipment proposed by the Contractor and will provide recommendations to the City. Oversee Contractor Survey: RBF will oversee the Contractor in his providing of construction- surveying services to establish a benchmark, reference line information, and well location Design, Installation, and Equipping of New Groundwater Wells Page 27 of 29 horizontal and vertical control. Construction Manager Reporting: RBF’s Construction Manager will report in writing daily to the Project Manager, to provide an update on progress of the work. Change Order Requests Evaluation: RBF will evaluate change order requests (COR) as required by City’s Contract Documents, and, if processed, then RBF will determine that the original design intent has not been altered. RBF will provide recommendations to the City. Review Contractor Monthly Progress Payments: RBF will review Contractor’s monthly Progress Payment Requests (PPR) and make recommendations for approval to the City. RBF will prepare and process progress payment requests on the City’s forms for approval. Geotechnical Soils Testing for Buildings: RBF will monitor the Geotechnical Engineer for any materials and soil compaction testing on the project. It is assumed the City will be responsible for hiring a geotechnical engineer for soils testing. RBF will coordinate, observe, and review all required tests. Punch List: RBF will prepare a punch list, identify all construction deficiencies, mediate the resolution of such with the Contractor prior to final inspection, and will provide a written recommendation of final acceptance for the project to the City. Review Contractor's Record ("As-Built") Drawings for Conformance: RBF will review the Contractor’s Record (“As-Built”) drawings for accuracy to reflect final conditions based on RBF’s observations and record drawing mark-ups, contractor furnished information, City comments, inspector’s field sketches, and records kept during construction. RBF will forward a copy to the RBF Design Engineer for his use in preparing electronic record drawing files. Operation and Maintenance Manual: At the end of the project, RBF will assure the Contractor provides the City with three (3) copies of an Operation and Maintenance (O&M) Manual containing all shop drawings, material submittals, equipment catalog cuts, maintenance manuals supplied by the manufacturers of the equipment, warranties and guarantees associated with installed equipment, and any spare parts that are supplied by the manufacturers. In addition to or as part of the activities identified above, RBF’s inspector will perform the following: Noise measuring and monitoring for compliance Inspection of pump and motor installation (factory witness tests excluded) Inspection of water main and associated improvements (flow meter, pressure relief, etc.) Inspection of storm drain and associated improvements Inspection of emergency disinfection equipment and housing/containment Inspection of standby generator unit and enclosure Inspection of motor control system and electrical conduit and wiring system installation Inspection of SCADA instrumentation and telemetry improvements Inspection of grading, onsite storm water, and paving improvements Inspection of fencing and landscaping/irrigation improvements Design, Installation, and Equipping of New Groundwater Wells Page 28 of 29 Inspection of well housing structural improvements Inspection of site security improvements Inspection of all necessary compaction and other geotechnical soils testing by others in conformance with contract requirements Documentation for field changes for preparation of record drawings. ITEMS TO BE PROVIDED BY THE CITY Background information regarding project requirements will be furnished to the Consultant, without charge, inclusive of all information, data, reports, maps, and records, which are available at the City’s offices. At a minimum, the City will provide the following supported information: 1. Provide project management. Assign a City of Downey Project Manager to act as the project focal point. 2. Provide the Consultant with access to City office and field personnel familiar with City Codes, enforcement activities, and the potable water system and its operation. 3. Provide the Consultant a work area while performing activities at City Hall. Consultant shall be responsible for providing own work area at the construction site. 4. Provide or make available upon request, reports, drawings, records, GIS data and files, and other data deemed useful for project development. Design, Installation, and Equipping of New Groundwater Wells Page 29 of 29 OFFICE PERSONNEL$/ Hr. Senior Principal .......................................................................................................................................... $245.00 Principal ....................................................................................................................................................... 200.00 Senior Project Manager ............................................................................................................................... 180.00 Project Manager .......................................................................................................................................... 195.00 Structural Engineer ...................................................................................................................................... 190.00 Technical Manager ...................................................................................................................................... 180.00 Senior Engineer ........................................................................................................................................... 163.00 Senior Planner ............................................................................................................................................. 160.00 Electrical Engineer ....................................................................................................................................... 150.00 Landscape Architect .................................................................................................................................... 150.00 Senior GIS Analyst ...................................................................................................................................... 150.00 Project Engineer .......................................................................................................................................... 144.00 Project Planner ............................................................................................................................................ 144.00 Environmental Specialist .............................................................................................................................. 138.00 Design Engineer/Senior Designer/Mapper................................................................................................... 135.00 GIS Analyst .................................................................................................................................................. 122.00 Designer/Planner ......................................................................................................................................... 118.00 Project Coordinator ...................................................................................................................................... 110.00 Graphic Artist ................................................................................................................................................. 97.00 Staff Planner .................................................................................................................................................. 97.00 Design Technician ......................................................................................................................................... 95.00 Assistant Engineer/Planner ............................................................................................................................ 93.00 Permit Processor ........................................................................................................................................... 83.00 Engineering Aid/Planning Aid ........................................................................................................................ 75.00 Office Support/ Clerical .................................................................................................................................. 63.00 FIELD PERSONNEL 2-Person Survey Crew ............................................................................................................................... $245.00 1-Person Survey Crew ................................................................................................................................. 155.00 Licensed Surveyor ....................................................................................................................................... 175.00 Field Supervisor ........................................................................................................................................... 172.00 CONSTRUCTION MANAGEMENT PERSONNEL Senior Construction Manager .................................................................................................................... $185.00 Resident Engineer/Construction Manager ................................................................................................... 158.00 Senior Construction Inspector ...................................................................................................................... 123.00 Construction Inspector ................................................................................................................................. 109.00 Field Office Engineer ................................................................................................................................... 110.00 Construction Technician ................................................................................................................................ 95.00 Note: Blueprinting, reproduction, messenger service and other direct expenses will be charged as an additional cost plus 15%. A Sub-consultant Management Fee of fifteen-percent (15%) will be added to the direct cost of all sub-consultant services to provide for the cost of administration, sub- consultant consultation and insurance. Vehicle mileage will be charged as an additional cost at 0.60 per mile.