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(b) Projects in which the total of pollution -generating pervious surface (PGPS) is three- <br />quarters of an acre or more in a threshold discharge area, and from which there is a <br />surface discharge into a natural or man-made conveyance system from the site. <br />As shown in the area summary above this project does not propose to construct 5,000 sf <br />or more of PGIS so treatment facilities are not required. However, on -site stormwater <br />BMPs are required, refer to Section 7 of this report for a detailed discussion of the BMPs <br />proposed. <br />9. FLOW CONTROL <br />As detailed in Section 7 of this report the proposed roof and driveway surfaces will be <br />dispersed on -site. The site design for the improvements is 7,814 sf of new plus replaced <br />impervious surfaces. Since all of the proposed impervious surfaces will be dispersed, the <br />developed flows are expected to be slightly greater than in the existing conditions. <br />10. WETLAND PROTECTION <br />By designing the on -site improvements to increase the peak flow rates from the site by <br />less than 0.1 cfs and by maintaining the sheet flow condition, this will provide the <br />necessary protection any downstream wetlands. <br />11. OPERATION AND MAINTENANCE MANUAL <br />The Property Owner will be responsible for maintaining the stormwater and landscaping <br />facilities within this development. <br />Routine inspections and maintenance will improve the long-term performance of the <br />stormwater facilities. If at any time you are unsure if a problem exists or how to address a <br />specific problem contact a Professional Civil Engineer. <br />Pignataro SFR 15-1008 <br />March 2016 Page 10 <br />Revised June 2016 <br />