Title:
Title
Agreement: Basin 32 Wastewater Master Planning
End
FileID
File ID: 2018-01616
Location
Location: District 8
Recommendation:
Recommendation
Pass a Motion authorizing the City Manager or the City Manager’s designee to execute a Professional Services Agreement with West Yost Associates to prepare a wastewater master plan for Sewer Basin 32, for an amount not-to-exceed $210,038.
Contact: Roxanne Dilley, Project Manager (916) 808-1458; Brett Grant, Supervising Engineer (916) 808-1413; Dan Sherry, Engineering & Water Resources Division Manager, (916) 808-1419; Department of Utilities
Body
Presenter: None
Attachments:
1-Description/Analysis
2-Agreement
Description/Analysis
Issue Detail: Staff recommends Council approve an agreement with West Yost Associates for the preparation of a master plan for Sewer Basin 32 that provides a comprehensive assessment of the hydraulic and structural condition of the wastewater collection system. Preparation of a wastewater master plan for Basin 32 will include system characterization, condition assessment, hydraulic modeling, alternative analyses, and a recommended capital improvement program.
The City’s wastewater collection system Basin 32 encompasses approximately 483 acres of the older parts of Sacramento with about 60% of the basin being occupied by the California State University Sacramento campus. A majority of the pipe in Basin 32 conveys only separated sanitary sewer, but some areas of the basin also convey stormwater collected by several drainage inlets. City staff conducted preliminary analysis and system characterization, but due to the complexity associated with Combined Sewer System (CSS) impacts and resource issues, consultant services are warranted to complete the master planning efforts.
Available data for all of the separated sewer basins were evaluated and ranked and prioritized based on the following criteria: number of sanitary sewer overflows (SSOs); preliminary hydraulic evaluations; likelihood of failure, which is based on structural assessment scores, scheduled maintenance frequencies, and pipe type; and consequence of failure, which identifies the potential public disruption or impact to “critical” facilities (i.e., hospitals, schools, government buildings, etc.) in the event of a sewer failure resulting in an SSO. Basin 32 ranked in the top five in the evaluation and is a priority basin for master planning.
Policy Considerations: City Council approval is required for professional service agreements of $100,000 or more, per City Code 3.64.020.
Economic Impacts: None.
Environmental Considerations: The preparation of a sewer basin master plan is exempt from the California Environmental Quality Act (CEQA), pursuant to CEQA Guidelines Section 15306. Exempt projects under Section 15306, Information Collection, consist of basic data collection, research, experimental management, and resource evaluation activities which do not result in a serious disturbance to an environmental resource. These may be strictly for information gathering purposes, or as part of a study leading to an action which has not yet been approved, adopted, or funded.
Sustainability: The master planning results will be used to support deficiency improvement projects that are consistent with the City’s 2035 General Plan - Sufficient Service - by identifying sufficient wastewater conveyance, storage, and pumping capacity for existing and build-out conditions during peak wet weather sanitary sewer flows.
Commission/Committee Action: Not applicable.
Rationale for Recommendation: On May 3, 2018, a Request for Qualifications (RFQ) (Q18141311008) was advertised and issued on PlanetBids for drainage and wastewater master planning and modeling services. The RFQ identified drainage basins, a separated sewer basin, and a sewer basin (Basin 32) associated with the combined system that needed master planning. The City intended to contract with up to three qualified consulting firms, for each portion of the work. The firms were required to state an expression of the firm’s interest in all or a portion of the work within the introductory letter. The firms would be evaluated based on their stated interest. On the due date of May 31, 2018, six Statements of Qualifications were received, and four firms expressed interest in the Basin 32 Wastewater Master Plan. The four firms include: Myriad, West Yost Associates, Woodard & Curran, and Wood Rogers.
A 4-member evaluation team that included staff from Department of Utilities and one member from Sacramento Area Sewer District, evaluated the proposals. West Yost Associates was the top-ranked firm for the Wastewater Basin 32 Master Plan. Three different firms were selected for three key areas of work identified in the RFQ. Separate agreements and Council Reports were issued for each portion of the work.
Financial Considerations: The proposed agreement is for an amount not-to-exceed $210,038. There are sufficient funds available in the Separated Sewer Master Planning Program (I14610200) to approve the agreement.
There are no General Funds allocated or planned for this project.
Local Business Enterprise (LBE): West Yost Associates is an LBE.