Susana Alcala Wood, City Attorney Jorge Oseguera, City Auditor Mindy Cuppy, City Clerk Howard Chan, City Manager John Colville, City Treasurer City Council Report
915 I Street, 1st Floor
Sacramento, CA 95814
www.cityofsacramento.org
File ID: 2022-00254 February 15, 2022 Consent Item 11
Title: Supplemental Agreement: Sacramento River Water Treatment Plant Expansion California Environmental Quality Act (CEQA) and Permitting
Location: Districts 4 and 6
Recommendation: Pass a Motion authorizing the City Manager or the City Manager’s designee to execute Supplemental Agreement No. 2 to City Agreement 2019-1369 with Carollo Engineers, Inc. for the Phase 1 Environmental Review and Permitting activities towards future augmentation and resiliency improvements of the Sacramento River Water Treatment Plant (SRWTP) and E.A. Fairbairn Water Treatment Plant (FWTP), for an amount not-to-exceed $278,340, bringing the agreement’s total not-to-exceed amount to $5,141,680.
Contact: Megan Thomas, Project Manager, (916) 808-1729, [email protected]; Michelle Carrey, Supervising Engineer, (916) 808-1438, [email protected]; Tony Bertrand, Engineering & Water Resources Division Manager, (916) 808-1461, [email protected], Department of Utilities
Presenter: None
Attachments:
1-Description/Analysis
2-Supplemental Agreement
File ID: 2022-00254 Consent Item 11
February 15, 2022
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City of Sacramento
Description/Analysis
Issue Detail: Staff recommends Council approve Supplemental Agreement No. 2 with Carollo Engineers, Inc. to incorporate additional water quality testing and treatment capabilities of the resiliency improvement design into the environmental impact review for both the Sacramento River Water Treatment Plant (SRWTP) and E.A. Fairbairn Water Treatment Plant (FWTP) within the contract for the Phase 1 – Conceptual Design, Draft Environmental Impact Report (EIR), Permitting, and Public Outreach activities for the future expansion of the SRWTP.
Surface water treatment capacity for existing and future customer demand is forecasted to reach its limits within approximately 12-15 years, which is the same timeline necessary to fully plan, permit, design, and construct the necessary treatment capacity expansion. These forecasts consider city growth estimated in the General Plan, conservation performance, sustainable groundwater management activities, and various rules governing water diversions from the rivers. This amendment to the original environmental impact review contract is focused on ensuring that both SRWTP and FWTP are improved to be able to modify treatment processes to adjust to changing river water quality associated with drought, temperature increases, and wildfires so drinking water can continue to be provided for the City under various source water conditions.
Policy Considerations: The proposed supplemental agreement exceeds the City Manager’s approval authority, requiring Council approval. This work is consistent with the criteria set forth in the Department of Utilities (DOU) Capital Improvement Project Programming Guide to rehabilitate, replace, and expand critical infrastructure to ensure reliability and safety.
Economic Impacts: None.
Environmental Considerations: Approval of the proposed Supplemental Agreement is an administrative action that would not result in direct or indirect effects on the environment. It is not a project under CEQA, and no CEQA review is required. See CEQA Guidelines sections 15378(b)(5); 15060(c)(3). The purpose of the action is to complete CEQA review. Appropriate evaluation and documentation of the environmental effects of the improvements that are the subject of the agreement as required by CEQA will be completed prior to project approval.
Sustainability: The proposed amendment to the contract is consistent with the 2035 General Plan as it addresses the resiliency needs of the water treatment plants and the reliability of the infrastructure at the treatment plants by incorporating similar assessments of both FWTP and SRWTP for water quality goals, remaining useful life of key infrastructure at both plants, and resiliency of the facilities.
File ID: 2022-00254 Consent Item 11
February 15, 2022
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City of Sacramento
Commission/Committee Action: Not applicable.
Rationale for Recommendation: On July 23, 2019, after a robust RFP process, Council awarded Carollo Engineers, Inc. a contract to complete the Phase 1 - Phase 1 Environmental Review and Permitting activities towards future expansion of the Sacramento River Water Treatment Plant.
During the evaluation of the expansion needs at SRWTP under the existing contract with Carollo Engineers, Inc., unforeseen challenges resulting from the pandemic and regulatory forecasting identified an expedited need to assess the resiliency of the treatment plants.
Events such as the COVID-19 pandemic highlighted concerns for impacts to available staffing, treatment chemicals, and replacement parts needed to maintain production of quality drinking water. Forecasted water quality concerns such as cyanotoxins identified a need for a more robust look at water treatment options to address needs of the changing river water quality.
The original contract primarily focused on the assessment of an additional 75-MGD of treatment capacity at SRWTP. The work within Supplemental Agreement No. 1 to the environmental impact review contract was approved by Council on May 18, 2021, and addressed the need for the resiliency of SRWTP and FWTP and ensures similar water quality can be produced from both treatment plants, for a more robust and sustainable drinking water system.
The additional work included within Supplemental Agreement No. 2 addresses the need for additional source water testing and design modifications to ensure the resiliency of SRWTP and FWTP from changing source water quality associated with wildfires, drought, and temperature increases.
Financial Considerations: The original not-to-exceed amount of the agreement was $3,459,940. Supplemental Agreement No. 1, in the amount of $1,403,400, increased the agreement not-to-exceed amount to $4,863,340. The proposed Supplemental Agreement No. 2, in the amount of $278,340, would increase the agreement not-to-exceed amount to $5,141,680. Sufficient funds are available in the Water+ Program (Z14190100, Fund 6001) to execute the agreement.
There are no General Funds allocated or planned for this project.
Local Business Enterprise (LBE): Carollo Engineers, Inc. is an LBE.
Background: The City’s two surface water treatment plants are the SRWTP and FWTP.
File ID: 2022-00254 Consent Item 11
February 15, 2022
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City of Sacramento
SRWTP was initially constructed in the 1920’s and has seen various improvements and upgrades over the years. Most recently the facility was rehabilitated to regain a peak treatment capacity of 160 million gallons a day (MGD). As a consideration for the future, the replacement of the early 1920’s infrastructure included space planning for potential expansion.
FWTP was originally constructed in 1964 and expanded in the early 2000’s to provide a permitted treatment capacity of 160-MGD. Current environmental restrictions and agreements associated with low flows in the American River (also known as the Hodge flow criteria) limit FWTP diversions from the American River. In June, July, and August, the typical months when the maximum demand for water occurs, the Hodge criteria can limit FWTP diversions to just 100-MGD when river flows are low.
Approximately half of the existing infrastructure at FWTP remains from the original 1964 construction and is still in service. The components are over 50 years old, which is a typical useful service life.
The purpose of the project is to begin laying the groundwork for the future design and construction of expanded water supply facilities at the SRWTP per conclusions of the initial investigation. Permitting and CEQA require certain levels of conceptual or predesign parameters be identified and are included in the original scope of work.
The initial predesign work on the Project will be completed in two (2) phases. Phase 1 work is currently in progress and is the phase of work this supplemental agreement would be performed under. The work in Phase 2 will be included in a future supplemental agreement.
• Phase 1 - Conceptual Design, Draft EIR, Permitting, and Public Outreach. The conceptual design effort will culminate in a Basis of Design Report and a Project Description that can be used as the basis for the Draft EIR, a portion of applicable permits, and a public outreach plan.
• Phase 2 - 10 Percent Design, Final EIR, Permitting, and Public Outreach. In this future phase the Final EIR will be developed, and the preliminary design completed. The potential scope of service is included as informational.
In March 2021, a new brand was selected for the SRWTP expansion and the treatment plant resiliency improvements project. The new brand “Water+: Sustainable Water for Sacramento” will be used for Public Outreach moving forward.
File ID: 2022-00254 Consent Item 11
February 15, 2022
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City of Sacramento
In May 2021, Council approved the Supplemental Agreement No. 1 that incorporated the following additions to the contract:
• Replacement of existing aging facilities at SRWTP that will be at the end of their useful life during the initial project element construction; • Evaluation of improvements at the existing Sacramento River intake needed to reduce sediment build-up within the structure;
• Improvements needed at FWTP to provide 100-MGD of reliable treatment capacity and 120-MGD hydraulic treatment capacity;
• Conversion from gaseous chlorine as the primary disinfectant to a sodium hypochlorite-based disinfectant at SRWTP and FWTP for a more reliable chemical supply with reduced risk impacts with regards to safety; and, • Conceptual design for ozone treatment at both SRWTP and FWTP for current and future capacities to address water quality objectives.
These improvements supported the need for the resiliency of SRWTP and FWTP and ensured similar water quality could be produced from both treatment plants, for a more robust and sustainable drinking water system.