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THE CITY OF `.'=, "' CITY COUNCIL AGENDA REPORT pLEASANTON. 11 May 15, 2018 Engineering TITLE: ADOPT A RESOLUTION APPROVING ADDENDUM TO THE INITIAL STUDY/MITIGATED NEGATIVE DECLARATION FOR THE CITY OF PLEASANTON RECYCLED WATER PROJECT FOR KEN MERCER SPORTS PARK BOOSTER STATION SUMMARY On September 16, 2014, City Council adopted the environmental review document, the Initial Study/Mitigated Negative Declaration (IS/MND), and the Mitigation Monitoring Program which evaluated potential environmental impacts associated with the City's proposed recycled water project (RWP). Subsequently, preparation of construction documents were completed in December 2015. On January 20, 2015, City Council adopted an amendment to the IS/MND which concluded that some changes to pipeline alignment made during design would not result in new significant impacts, substantially increase the severity of previously disclosed impacts, nor involve any of the other conditions that would require a further environmental review. After completing the construction and placing the RWP system into operation, it was determined that the system could operate more efficiently with increased water pressure at Ken Mercer Sports Park and points south. A pressure boosting pump station was then designed and publicly bid for construction. Upon review of the booster station award package by the State Water Board (SWB) for inclusion of the project under the existing CWSRF Loan and Grant contract, the state requested additional clarification to the IS/MND, identifying the impacts of the booster station. Therefore, this addendum was produced to assess the environmental impacts of these changes. The conclusion of the addendum is that the proposed pressure boosting pump station will not result in any new significant impacts, substantially increase the severity of previously disclosed impacts nor involve any of the other conditions that would require a further environmental review per the Public Resources Code and California Environmental Quality Act (CEQA) Guidelines. This addendum is an informational document; CEQA and the CEQA Guidelines do not require a subsequent or supplemental negative declaration or environmental impact report for the proposed booster pump station. This document was published for a 15 -day public review on April 12, 2018. No comments were received. RECOMMENDATION Adopt the attached resolution approving the Addendum to the initial study/mitigated negative declaration for the City of Pleasanton Recycled Water Project (Attachment 1). FINANCIAL STATEMENT There is no cost associated with the adoption of this Addendum.