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Stormwater Pollution Prevention Plan <br /> • The SWPPP shall be modified whenever there is a change in the <br /> design, construction, operation, or maintenance at the construction <br /> site that has, or could have, a significant effect on the discharge of <br /> pollutants to waters of the state. <br /> ■ The SWPPP shall be modified if, during inspections or <br /> investigations conducted by the owner/operator, or the applicable <br /> local or state regulatory authority, it is determined that the SWPPP <br /> is ineffective in eliminating or significantly minimizing pollutants in <br /> stormwater discharges from the site. The SWPPP shall be <br /> modified as necessary to include additional or modified BMPs <br /> designed to correct problems identified. Revisions to the SWPPP <br /> shall be completed within seven (7) days following the inspection. <br /> 3.1.13 Element#13 — Protect On-Site Stormwater Management BMP's for runoff <br /> from roofs and other hard surfaces <br /> On-site stormwater management BMPs used for runoff from roofs and other hard <br /> surfaces <br /> include: full dispersion, roof downspout full infiltration or dispersion systems, perforated <br /> stubout connections, rain gardens, bioretention systems, permeable pavement, <br /> sheetflow dispersion, and concentrated flow dispersion. The areas on the site to be <br /> used for these BMPs shall be protected from siltation and compaction during <br /> construction by sequencing the construction in a fashion to install these BMPs at the <br /> latter part of the construction grading operations, by excluding equipment from the <br /> BMPS and the associated areas, and by using the erosion and sedimentation control <br /> BMPs listed below. Additional requirements for protecting these BMPs during the <br /> construction process, testing functionality, and restoring functionality are needed at the <br /> final stage of the construction process and are included in the specific BMP sections in <br /> Volume V of this manual. <br /> Relevant BMPs <br /> BMP C102: Buffer Zone <br /> BMP C103: High Visibility Fence <br /> BMP C200: Interceptor Dike and Swale <br /> BMP C201: Grass-lined Channels <br /> BMP C207: Check Dams <br /> BMP C208: Triangular Silt Dike <br /> BMP C231: Brush Barrier <br /> BMP C233: Silt Fence <br /> BMP C234: Vegetated Strip <br /> 15 <br />