TO: Members of the Governing Board
FROM: Christopher Silke, District Engineer
REPORT BY: Annamaria Martinez, Assistant Engineer
SUBJECT: Notification of $2,265,934 Funding Award from the State Clean Water State Revolving Fund, Approval of a Budget Amendment establishing appropriations in the LBRID Wastewater Ponds Groundwater Inflow Mitigation Project budget and Approval of Amendment No 1 to Agreement No 240306B with GHD, Inc. for completion of design services for the Project.
RECOMMENDATION
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Approve and authorize Amendment No. 1 to Agreement No. 240306B (LBRID) with GHD, Inc. for a new maximum of $186,071 to finalize design of the Lake Berryessa Resort Improvement District Wastewater Ponds Groundwater Inflow Mitigation Project in advance of public bid; and approve a Budget Amendment for the Project. (Fiscal Impact: $2,265,934 Expense offset by State Revenue; Lake Berryessa Resort Improvement District Fund; Not Budgeted; Discretionary)
[4/5 vote required]
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BACKGROUND
Heavy rainfall, runoff, and saturated soil conditions in the winter of 2017 caused a series of spills from Lake Berryessa Resort Improvement District (LBRID)infrastructure. The Central Valley Regional Water Quality Control Board (Regional Board) subsequently served the District with a Notice of Violation in April 2017. To address the violations, Regional Board ordered the District to complete a Revised Water Balance Evaluation and submit a Work Plan if a registered California Professional Engineer finds there is insufficient storage and/or disposal capacity. The District authorized Agreement No. 170871B with GHD, Inc. in May 2017 to provide engineering study services. The scope of the investigation centered on Water Balance Update and Calibration Model tasks executed in conformance with the Regional Board guidelines. The basis for conducting a technical review of the wastewater ponds and irrigation facilities was to assess the adequacy for storing and handling a 100-year annual return pr...
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