Table . Kemper Ditch subwatershed (15-year and 25 year) load reductions from BMPs Target Timeline: 15 Years 25 Years Nitrogen Phosphorus Sediment Nitrogen Phosphorus Sediment Suggested BMP Acres Acres lb/yr lb/yr lbs/yr lb/yr lb/yr lbs/yr Cover Crop 1324 1447 206 208,303 2,649 2,895 412 416,607 Forage & Biomass 530 NA NA NA 1,059 NA NA NA Crops Filter Strips, Ag 265 675 161 135,397 265 675 161 135,397 Reduced Tillage 795 1831 428 468,000 1,059 2,442 571 624,910 Riparian Buffers, Ag 53 109 27 15,623 265 544 135 312,455 Land Conversion: 795 2867 681 6,200 1,059 3823 909 124,982 cropland to wetland Land Conversion: cropland to 530 966 309 27,079 1,059 1,932 618 135,397 grassland Nutrient 1,059 393 145 612,412 2,649 983 362 816,550 Management Porous Pavement 10 49 4 333,286 25 123 9 666,571 Tree & Shrub 200 NA NA NA 300 NA NA NA Planting Septic System NA NA NA NA NA NA Maintenance Education & NA NA NA NA NA NA Outreach Sum 8,338 1,961 1,806,301 13,417 3,177 3,232,870 Needed Reductions 25,695 9,903 507,721 25,695 9,903 507,721 % Reduction 32% 20% 356% 52% 32% 637%
Table . Kemper Ditch subwatershed (15-year and 25 year) load reductions from BMPs Target Timeline: 15 Years 25 Years Suggested BMP Acres Nitrogen lb/yr Phosphorus lb/yr Sediment lbs/yr Acres Nitrogen lb/yr Phosphorus lb/yr Sediment lbs/yr Cover Crop 1324 1447 206 208,303 2,649 2,895 412 416,607 Forage & Biomass Crops 530 NA NA NA 1,059 NA NA NA Filter Strips, Ag 265 675 161 135,397 265 675 161 135,397 Reduced Tillage 795 1831 428 468,000 1,059 2,442 571 624,910 Riparian Buffers, Ag 53 109 27 15,623 265 544 135 312,455 Land Conversion: cropland to wetland 795 2867 681 6,200 1,059 3823 909 124,982 Land Conversion: cropland to grassland 530 966 309 27,079 1,059 1,932 618 135,397 Nutrient Management 1,059 393 145 612,412 2,649 983 362 816,550 Porous Pavement 10 49 4 333,286 25 123 9 666,571 Tree & Shrub Planting 200 NA NA NA 300 NA NA NA Septic System Maintenance NA NA NA NA NA NA Education & Outreach NA NA NA NA NA NA Sum 8,338 1,961 1,806,301 13,417 3,177 3,232,870 Needed Reductions 25,695 9,903 507,721 25,695 9,903 507,721 % Reduction 32% 20% 356% 52% 32% 637%