AgdaPkt 2010-09-08 - Laserfiche WebLink

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REPORT To the Honorable Mayor and City Council From the City Manager September 8,2010 Subject Confirm City Manager's declaration of local emergency arising from ruptured sewer force main at Redwood Shores Recommendation Adopt, by 5/7 vote of the City Council, a Resolution Confirming Existence of a Local Emergency and Ratifying the City Manager's Immediate Expenditure of Public Money to Safeguard Life Health, Property or Essential Public Services. Background The City Manager declared the existence of a local emergency due to a ruptured sewer force main which occurred on August 25,2010. As a result of the rupture, sewage flooded a segment of paved street and flowed into six garages and an adjoining parking lot in the Lighthouse Cove condominium residential complex located in the vicinity of Davit Lane and Anchor Circle in Redwood Shores. Approximately 48,000 gallons of sewage was released into the Redwood Shores lagoon. City staff was notified at approximately 2:50 p.m. of an overflow of raw sewage at Lift Station 10 in Redwood Shores. The City's first responder arrived onsite at approximately 2:59 p.m., assessed the situation, and initiated the emergency response. The Public Works Services department mobilized both City forces and contractors services to address the emergency. Additionally resources were identified throughout the respons~0through a continuous re-assessment process. As part of the immediate response tfle following actions were taken: determine and locate the cause of the spill; contain and divert the flow of sewage, repair the broken force main pipe and initiate site clean up. The City Manager determined that it was necessary to immediately expend funds to safeguard health, property, and essential public services from a clear and imminent danger by diverting the sewage from the ruptured pipe, and authorized staff to enter into contracts with several tanker truck rental companies, including A 1 Septic Tank, NRC Environmental Services Inc., and Cleanwater Environmental Management, Inc. to provide these services. Further staff initiated contact with West Valley Construction to perform the immediate repair of the ruptured force main. City staff responded to the release of sewage into the surface waters of the lagoon by conducting frequent water quality sampling and testing of the waters, using the services of Clean Lakes, Inc., and the maintenance services of Waterworks Industries, Inc. to apply treatments to the waters, in consultation with San Mateo County Environmental Health and the County Public Health laboratory. Water quality testing and treatment will continue until the water quality of the lagoon is improved. With the information and authorization provided to City staff by the Regional Water Quality Control Board, the City Manager determined that it was necessary to immediately expend funds to safeguard health, property, and essential public services from a clear and imminent danger, and authorized staff to enter into contracts with these firms to acquire and apply a treatment to improve