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SANTA ANA REZONE PROJECT <br />INITIAL STUDY/MITIGATED NEGATIVE DECLARATION <br />Construction Permit, dischargers are required to electronically file the Permit Registration Documents, <br />which include a Notice of Intent (NOI), a Storm Water Pollution Prevention Plan (SWPPP), and other <br />compliance -related documents required by the General Permit, and to mail the appropriate permit fee <br />to the State Water Board. <br />Long-term Operations <br />The Municipal Storm Water Permitting Program regulates stormwater discharges from Municipal <br />Separate Storm Sewer Systems (MS4). Most of these permits are issued to a group of co-permittees <br />encompassing an entire metropolitan area. The MS4 permits require the discharger to develop and <br />implement a Stormwater Management Plan/Program with the goal of reducing the discharge of <br />pollutants to the maximum extent practicable (MEP).52 The management programs specify what Best <br />Management Practices (BMPs) will be used to address certain program areas. The program areas <br />include public education and outreach, illicit discharge detection and elimination, construction and <br />post -construction, and good housekeeping for municipal operations. <br />The Orange County Flood Control District, the County of Orange, and the City of Santa Ana, along <br />with 51 other incorporated cities therein (Permittees), discharge pollutants from their MS4s. <br />Stormwater and non-stormwater flows enter and are conveyed through the MS4s and are discharged <br />to surface water bodies of the Orange County Region. These discharges are regulated under <br />countywide waste discharge requirements (contained in Order No. R8-2009-0030 [as amended by <br />Order No. R8-2010-0062], Waste Discharge Requirements for the County of Orange, Orange County <br />Flood Control District, and the incorporated cities within the Santa Ana Region Area -wide Urban <br />Storm Water Runoff Orange County) which were approved on May 19, 2011. Order No. R8-2009- <br />0030, which serves as an NPDES permit, has expired but remains in effect until the Santa Ana <br />RWQCB adopts a new permit. <br />The Permit requires the development and implementation of a program addressing stormwater <br />pollution issues in development planning for private projects. The primary objectives of the municipal <br />stormwater program requirements are to (1) effectively prohibit non-stormwater discharges; and (2) <br />reduce the discharge of pollutants from stormwater conveyance systems to the MEP statutory <br />standard. The County Model Water Quality Management Plan (WQMP) was developed as part of the <br />municipal stormwater program to address stormwater pollution from new development and <br />redevelopment by the private sector. This WQMP contains a list of the minimum required BMPs that <br />must be employed for a designated project. The Permittees are required to adopt the Program's <br />requirements in their own water quality regulations. Developers must incorporate appropriate WQMP <br />requirements into their project plans. Each Permittee must approve the project plan as part of their <br />development plan approval process and prior to issuing grading permits for projects covered by the <br />model WQMP requirements. <br />" MEP is the performance standard specified in Section 402(p) of the Clean Water Act. <br />FCS 67 <br />Https://adecinnovations.sharepoint.com/sites/PubiicationsSite/Shared Documents/Publications/Client(PN-JN)/D327/03270D47/ISMND/0327D047 Santa Ana Rezone Project ISMND.docx <br />