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5 <br /> Buffer restoration Managed grazing Cropland conversion Cover crops <br /> Conservation tillage <br /> to trees or grass <br /> Pond creation I Pond renovation Construction Nutrient Vegetative <br /> I <br /> weltand I management plans I treatment;filter <br /> and comprehensive j strips,buffers, <br /> nutrient swales <br /> I management plans <br /> (cropland and <br /> animal operation) <br /> Wood chip Manure composting II Proper manure Proper animal Two stage channels <br /> bioreactors handling,storage, nutrient <br /> �I and disposal I supplementation and , <br /> feeding strategies <br /> (reduce P <br /> supplementation, <br /> etc.) <br /> Improve functioning 1 Overtreatment of Improvement/ Replace/xepalr E Remove 111ega1 <br /> of septic system wastewater for regionalization of lealarag co`llcctton, wastewater <br /> credits wastewater facilities. connections to <br /> Stormwatex systems <br /> or surface waters <br /> Collect Qrpretreat Contain sewage i <br /> et Sweeping e <br /> S Reduce pet waste <br /> grease spills anti zedice transmission to <br /> SSOs=' surface waters <br /> Improved biosolids Repairing failing Educate commercial j Emission reduction Educate home <br /> management BMPs business owners (atmospheric) owners about proper <br /> about proper maintenance of <br /> disposal to onsite wastewater <br /> Stormwater Systems I tre atments stems <br /> Color code: aqua=ecosystem enhancements, coral=agricultural enhancements, <br /> pink=wastewater enhancements, olive=infrastructure enhancements, <br /> purple=programmatic enhancements. <br /> 5.b. Credit Accounting Tool Development <br /> Low end estimate: Determine credits for existing BMPs in the Falls Lake watershed using previously published area <br /> loading to determine loading to each BMP. Use existing credits or credits determined in 5.a. above to estimate the load <br /> reduction of the BMP. Transport to the lake will not be considered. <br /> High end estimate: To incorporate attenuation as nutrients are transported to the lake, develop delivery factors associated <br /> with watershed impoundments(i.e., West Fork Eno River Reservoir,Lake Orange,Little River Reservoir,Lake Michie, <br /> Lake Butner, Lake Rogers,and Beaverdam Impoundment)and stream channels. Delivery factors shall be based on an <br /> empirical or mechanistic watershed model(e.g.,WARMF or HSPF)that can also be used to estimate jurisdictional <br /> nutrient load estimates. <br /> Page 3 of 3 <br />