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<br />PUBLIC WORKS SERVICES <br />2017 Redwood Shores Lagoon Aquatic Plant <br />Management and Environmental Engineering Services RFP 2 <br />• Two pump stations, referred to as Lagoon Discharge Facility No. 1 and Lagoon <br />Discharge Facility No. 2, both discharge to Steinberger Slough through connecting <br />smaller channels at the southeast end of the lagoon system. <br /> <br />The lagoon’s primary water source is tidal flow from San Francisco Bay through Belmont <br />Slough and Bay Slough. The lagoon bottom is at elevation 93.0 (National Geodetic Vertical Datum <br />(NGVD) +100'). The lagoon water level is kept at elevations 97.0 and 99.0 during the winter and <br />summer, respectively. Storm drains connect to the lagoon at a number of points along its periphery. <br />During periods of rain, stormwater is discharged into the lagoon. <br /> <br />The City owns non-exclusive easements along the shoreline extending onto private <br />properties for the use and purposes, and activities identified below. <br /> <br />1. To store surface or stormwater runoff <br />2. To flow and move water within the property and to increase and decrease the elevation <br />of water stored. <br />3. To clean and treat water stored or standing within the property. <br />4. To construct, reconstruct, maintain, operate, repair, renew and replace storm sewers or <br />drains, storm drain structures and facilities appurtenant to storm drainage, and maintain <br />the Lagoon to retain its original cross section. <br /> <br />The local watershed contains some office buildings, but otherwise is predominately a <br />residential area. The perimeter of the lagoon is developed with single-family homes and private <br />docks along the majority of the shoreline, interspersed with several small public parks an d several <br />connecting trails. <br /> <br />Redwood Shores Lagoon maintenance activities are conducted within a challenging <br />regulatory environment, particularly with respect to the use of aquatic pesticides. Activities must <br />conform to requirements of the Regional Water Quality Control Board, and ot her local, state, and <br />federal oversight agencies. Aquatic plant management activities must conform to San Mateo <br />Countywide Water Pollution Prevention Program (SMCWPPP) Performance Standards for Lagoon <br />Management and its amendments, contained in the draft Lagoon Management Plan: Redwood <br />Shores Lagoon, July 2003 (http://www.redwoodcity.org/home/showdocument?id=1802). <br /> <br />6.1.B. - Page 14