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Page 13 of 20 <br />City of Redwood City 1017 Middlefield Road, Redwood City, CA. 94063 Tel: 650-780-7000 www.redwoodcity.org <br />4. Stormwater System and Lagoons <br />The City’s stormwater system includes: <br />17 stormwater pump stations <br />Eight miles of creek in the various branches of Redwood Creek <br />About 4,000 drain inlets <br />Over 100 miles of stormwater pipelines <br />In 1962, the City issued bonds to improve storm drainage in Redwood Creek, including installation of <br />concrete channels along several branches. As part of this project, the City was granted easements from <br />adjacent property owners for access to maintain the concrete channels. The City also maintains the <br />Bayfront Canal, adjacent to the Cargill Salt Ponds along East Bayshore Road between Douglas Court and <br />Marsh Road. <br />The City maintains 280 acres of lagoons and 6.8 miles of levees in Redwood Shores. These stormwater <br />facilities convey all stormwater flows throughout Redwood City to the San Francisco Bay. <br />The San Francisco Bay Regional Water Quality Control Board provides regulatory oversight for the <br />stormwater system through the Municipal Regional Permit (MRP) for the Bay Area. The MRP outlines <br />management, operation, and prohibitions related to the stormwater system and discharges to Waters of <br />the State. <br />a. Stormwater Treatment Obligations Under Municipal Regional Permit <br />In compliance with the MRP, the City adopted municipal code language that establishes stormwater <br />treatment requirements for both capital improvement and private development projects. E&T staff <br />ensures that MRP-approved treatment systems are included in projects that exceed a defined threshold. <br />Staff review plans and conduct inspections both during the installation of treatment systems and at five- <br />year intervals following installation. In fact, E&T staff inspects over 30 stormwater treatment sites <br />annually to confirm that the systems are operating as intended, which is more than other cities in San <br />Mateo County. <br />E&T staff also collaborate closely with project applicants to review plans and inspect active construction <br />sites to prevent hazardous debris from entering the storm drain system or polluting the waterways. In <br />addition, the City performs over 1,000 stormwater business inspections each year. These business <br />inspections promote best practices for business operations and educate business owners about the <br />importance of ensuring that only stormwater enter the storm system, creeks, and ultimately, the San <br />Francisco Bay. <br />Trash within the stormwater system is another area regulated by the MRP. The City currently maintains <br />trash capture devices within 421 storm drain inlets, to prevent trash from entering the storm system and <br />meet trash reduction requirements as set by the MRP. <br /> <br />The City must also acquire permits for many stormwater maintenance activities and capital improvement <br />projects from various state and federal agencies, including the California Department of Fish and Wildlife, <br />9.A. - Page 13 of 20 <br />498