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<br />774-6021 MAIER STEWART ASSOC. <br /> <br />124 P1S <br /> <br />APR 21' 93 15: 18 <br /> <br />. <br /> <br />~) A protective buffer suil' of vegetation surrounding the permanent pool at a minimum <br />width of one rod (16.5 feel) [this width is consistent with Ihe draft rules develupt:(l by Ill,: <br />Board of IValet and Soil Resources under the WeIland Consel'Vanoll Aa of 1991 J; <br /> <br />f) <br /> <br />All storm water detention facilities shall have a device to keep oil, grease, am.I other <br />floatable material from moving downstream as a result of normal operations; <br /> <br />g) <br /> <br />Storm water detention facilities Cor new development must be sufficient to limit peak <br />nows in each subwatershed to lhose that existed before the development for the 10 year <br />storm evenL All calculations and hydrologic rnode1slinCormation used in determining <br />peak nows shall be submitted along with the storm water management plnn; <br /> <br />11) <br /> <br />All storm water detention facilities must have a forcbay to remove co~rsc .grainr.:d <br />particles prior to discharge into a watercourse or storage basin. <br /> <br />8.9 \Vctlands. <br /> <br />a) Runoff shall not be discharged directly into wetlands without presettJement oC the <br />runoff. <br /> <br />. <br /> <br />b) A protective burrer strip of natural vegetation at least one rod (16.5. feet) in width shall <br />surround all wedands. [This width is consistent with ,hI draft rules developed by lite <br />Board of Waler and Soil Resources under the WeIland COlUel'Yation. A.ct of lY9l.j <br /> <br />c) Wetlands must not be drained or filled, wholly or partially. unless replaced by restoring <br />or creating wetland areas of at least equal public value. Replacement must he: guided <br />by the following principles in descending order of priority: <br /> <br />1) Avoiding tbe direct or indirect impact of the activity that may destroy or diminish <br />the wetland; . <br /> <br />2) Minimizing the impact by limiting the degree or magnitude of the wetl;mcl activity <br />and its implementation; <br /> <br />3) Rectifying the Impact by repairing, rehabilitating. or restoring the affected wctland <br />environment; <br /> <br />4) Reducinc or eliminating the impact over time by preservation and JiiaiiiteDance <br />operations during the liCe of the activity; and <br /> <br />5) Compensadng for the impact by replacing or providing substitute wetland <br />resources or environments. [Compensation. including the nplac,ment ratio II/Ill <br />quality of nplacemml should ~ eonsUtenl with the rrquiremtnu Olll/utet/ in 1M <br />rules which will be adopted by 1M Board 0/ WafII' and Soil Raoruas to impknlDll <br />the Wetland C011Sel'VllnOn Act of 1991.J <br /> <br />. <br /> <br />8.10 ~leeD slopes. No land disturbin.c or development activities shaD be allowed on slopes of 18 <br />per cent or morc.. <br /> <br />8.11 Catch basins. All newly installed and rehabilitated catch basins s~all be provided with a sump <br />area {or the collection of coarse-.grained material Such basins shall be cleaned when they arc: <br />half filled with material. <br /> <br />8. 12 Drain leadcrI. All newly construcled and reconstructed buildings will route drain kaders to <br />pCI vious areBS wherein the runoff can be allowed to innItrate. The flow rate oC W.llcr exiting <br />