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J:\FORMS\Templates\Storm Water Requirements\NPDES Storm Water Runoff History.doc (Rev. 03/08) NPDES STORMWATER RUNOFF HISTORY: On February 21, 2001, the California Regional Water Quality Control Board (Board) adopted Order No. 01024 reissuing water discharge requirements under the National Pollutant Discharge Elimination System (NPDES) permit for the Santa Clara Valley Urban Runoff Pollution Prevention Program (SCVURPPP) for the discharge of storm water to South San Francisco Bay and its tributaries. SCVURPPP’s permit is jointly issued to the thirteen cities of Santa Clara County, Santa Clara County and the Santa Clara Valley Water District, all of which are copermittees. These copermittees are referred to as Dischargers. Order No. 01024 recognizes the Santa Clara Valley Urban Runoff Management Plan as the Dischargers Comprehensive Control Program (Management Plan) and requires implementation of the Management Plan for storm water discharges. The Management Plan describes the Program’s goals and objectives and contains Performance Standards, which represent the baseline level of effort required of each of the Dischargers. On October 17, 2001, the Board adopted Order No. 01119, which amended Provision C.3 of Order 010124 to enhance the Discharger’s existing Performance Standard for new and significant redevelopment. The two order combined specifically requires a level of implementation of best management practices(BMP’s), including source control, site design, and structural storm water treatment measures in new development and significant redevelopment to remove pollutants from the discharge to the maximum extent practicable (MEP). In September 2003, as allowed by the Permit, the Program proposed an alternate Group 2 definition under provision C.3 to exclude specific projects from Group 1 and Group 2 project categories and to increase implementation of C.3 requirements to 10,000 square feet for Group 2 projects. A request to delay the implementation requirements for Group 2 projects from October 15, 2004 to April 15, 2005 was approved by the Board. At the October 15, 2003 meeting, the Board approved the alternate definition of Group 2 projects to Group 2 Tier A and Group 2 Tier B and allowed implementation to be completed in phases by the Dischargers. The implementation date for Group 2 Tier A projects was extended from April 15, 2005 to October 15, 2006. Group 2 Tier B projects requirements are to be implemented by August 15, 2006.