Maryland Phase II WIP Strategies. MONTGOMERY Agriculture - Annual Practices

Transcription

1 Maryland Phase II Strategies MONTGOMERY Agriculture - Annual Practices BMP Name Conservation Tillage Acres/Year 28,436 27,984 27,677 Cover Crop Acres/Year 4,275 10,816 11,000 Cropland Irrigation Management Acres/Year 0 1,280 1,280 Dairy Manure Incorporation Acres/Year Nutrient Management (All forms) Acres/Year 29,914 45,658 46,438 Soil Conservation and Water Quality Plans Acres/Year 22,101 34,651 38,664 Unit MONTGOMERY Agriculture - Additional BMPs BMP Name Barnyard Runoff Control Acres Forest Buffers Acres Grass Buffers / Vegetated Open Channel Acres Horse Pasture Management Acres Irrigation Water Capture Reuse Acres Land Retirement Acres 2,288 2,870 3,393 Loafing Lot Management Acres Off Stream Watering Without Fencing Acres 1,344 1,524 1,645 Prescribed Grazing Acres Stream Access Control with Fencing Acres Tree Planting / Vegetative Environmental Buffers Acres Water Control Structures Acres Wetland Restoration Acres Unit The BMP values represent the total amount of implementation in place. Please note: The Agricultural BMP tables represent Land BMPs that can be shown as acres or feet and do not show those BMPs that are based on percentages such as Animal Waste Storage and Poultry Litter Treatment (Alum). Manure Transport is also not represented in these tables. Page 1 of 13

2 Forest BMPs BMP Name Zone Unit Forest Harvesting Practices harvested forest Acres The BMP values represent the total amount of implementation in place. Page 2 of 13

3 Developed Land BMPs BMP Name Bioretention / Raingardens Acres 0 4,394 6,846 Bioswale Acres 0 4,909 7,444 Dry Detention Ponds and Hydrodynamic Structures Acres 4,834 2,918 2,300 Dry Extended Detention Ponds Acres 1,862 1,980 1,947 Impervious Urban Surface Reduction Acres 0 0 1,777 MS4 Permit Stormwater Retrofit Acres 4,329 4,504 4,516 Stormwater Management Generic BMP (1985 to 2002) Acres 25,343 10,623 8,187 Stormwater Management Generic BMP (2002 to ) Acres 3,429 3,671 2,617 Urban Filtering Practices Acres ,024 Urban Forest Buffers Acres ,102 Urban Infiltration Practices Acres 1,010 1,106 1,516 Urban Tree Planting / Urban Tree Canopy Acres Vegetated Open Channels Acres Wet Ponds and Wetlands Acres 5,642 5,889 5,782 Erosion and Sediment Control on Construction Acres/Year 2,718 2,718 5,356 Erosion and Sediment Control on Extractive Acres/Year Forest Conservation Acres/Year 9,128 8,738 8,872 Urban Nutrient Management Acres/Year 24,553 23,661 44,722 Street Sweeping Pounds Lbs/Year 0 941, ,633 Urban Stream Restoration / Shoreline Erosion Control Linear Feet 0 5,920 9,914 Unit The BMP values represent the total amount of implementation in place. Page 3 of 13

4 Septic System BMPs BMP Name Zone Unit Septic Denitrification Critical Area Systems Outside of the Critical Area, not within 1000 ft of a perennial stream Systems Within 1000 ft of a perennial stream Systems ,495 Septic DenitrificationTotal ,566 The BMP values represent the total amount of implementation in place. Page 4 of 13

5 Maryland Phase II Strategies MONTGOMERY Total Nitrogen Loads Source Sector Landuse Target Agriculture AFO CAFO Crop Nursery Pasture Subtotal Forest Harvested Natural Subtotal Non-Tidal Atm Non-Tidal Atm Subtotal Septic Septic Subtotal Stormwater CSS Construction Extractive Regulated Developed Subtotal Wastewater CSO Industrial Municipal Subtotal Total The agricultural sector strategies were set to meet basin targets rather than county targets. Therefore, agricultural strategies are likely to overshoot or undershoot county targets, which can be reflected in the total countywide target results. Stormwater sector strategies may overshoot the county target for nitrogen (N) to meet the phosphorus (P) target, or vice versa. This is because the N and P reduction targets differ and the same BMP has different effects on the reduction of N and P. Page 5 of 13

6 Total Phosphorus Loads Source Sector Landuse Target Agriculture AFO CAFO Crop Nursery Pasture Subtotal Forest Harvested Natural Subtotal Non-Tidal Atm Non-Tidal Atm Subtotal Septic Septic Subtotal Stormwater CSS Construction Extractive Regulated Developed Subtotal Wastewater CSO Industrial Municipal Subtotal Total The agricultural sector strategies were set to meet basin targets rather than county targets. Therefore, agricultural strategies are likely to overshoot or undershoot county targets, which can be reflected in the total countywide target results. Stormwater sector strategies may overshoot the county target for nitrogen (N) to meet the phosphorus (P) target, or vice versa. This is because the N and P reduction targets differ and the same BMP has different effects on the reduction of N and P. Page 6 of 13

7 Total Sediment Loads Source Sector Landuse Agriculture AFO CAFO Crop Nursery Pasture Subtotal Forest Harvested Natural Subtotal Non-Tidal Atm Non-Tidal Atm Subtotal Septic Septic Subtotal Stormwater CSS Construction Extractive Regulated Developed Subtotal Wastewater CSO Industrial Municipal Subtotal Total The State did not distribute EPA's state and basin targets at the county or sector scale for sediment. Hence a Target column is not shown. Page 7 of 13

8 Page 8 of 13

9 The State did not distribute EPA's state and basin targets at the county or sector scale for sediment. Hence a Target bar is not shown. Page 9 of 13

10 Maryland Phase II MAST Submittals MONTGOMERY Developed Land BMPs BMP Name Unit Change in Submittal Change in Submittal Bioretention / Raingardens Acres 0 4,395 4,394 6,942 6, Bioswale Acres 0 4,909 4,909 7,547 7, Dry Detention Ponds and Hydrodynamic Structures Acres 4,834 2,918 2,918 2,331 2, Dry Extended Detention Ponds Acres 1,862 1,981 1,980 1,974 1, Impervious Urban Surface Reduction Acres , ,777 MS4 Permit Stormwater Retrofit Acres 4,329 4,504 4,504 4,578 4, Stormwater Management Generic BMP (1985 to 2002) Stormwater Management Generic BMP (2002 to ) Acres 25,343 10,624 10,623 8,316 8, Acres 3,429 3,670 3,671 2,652 2, Urban Filtering Practices Acres , ,057 Urban Forest Buffers Acres , ,076 Urban Infiltration Practices Acres 1,010 1,107 1,106 1,536 1, Urban Tree Planting / Urban Tree Canopy Acres Vegetated Open Channels Acres Wet Ponds and Wetlands Acres 5,642 5,889 5,889 5,862 5, Erosion and Sediment Control on Construction Erosion and Sediment Control on Extractive Acres/Year 2,718 5,356 2,718 5,356 5,356-2,638 0 Acres/Year Forest Conservation Acres/Year 9,128 8,733 8,738 8,733 8, Urban Nutrient Management Acres/Year 24,553 23,662 23,661 23,662 44, ,060 Street Sweeping Pounds Lbs/Year 0 941, , , , Urban Stream Restoration / Shoreline Erosion Control Linear Feet 0 5,920 5,920 9,914 9, The BMP values represent the total amount of implementation in place. Acres of BMPs might be observed to decrease in subsequent scenarios for several reasons: - To meet the countywide sector target, the State supplemented the scenarios with a generic set of BMPs. - Some aspects of the State strategies were automated, such that BMP levels were computed as a percentage of available acres. The application of some BMPs convert the acres of developed land to forest land, or impervious to pervious. This reduces/increases the available acres so that, if the same percentage level of other BMPs is applied to these lands, then a decrease/increase in BMP acreage might be observed even though the implementation level was intedend to remain equal. - Because the Bay watershed model is not able to account for BMPs that treat overlapping areas (nested BMPs), the acreage available for BMPs can be used up before the Target is achieved. In such cases the State gave precedance to the more effective BMPs. The columns labeled include the State Highway Administration (SHA) strategies as well as levels for other entities. The columns for and strategies include numbers for SHA, federal facilities, State lands, industrial facilities, Phase I and II MS4 and non-regulated stormwater where applicable. They also reflect changes made by the State. Page 10 of 13

11 Septic System BMPs BMP Name Zone Unit Septic Denitrification Change in Submittal Change in Submittal Critical Area Systems Outside of the Critical Area, not within 1000 ft of a perennial stream Within 1000 ft of a perennial stream Systems Systems , ,438 Septic DenitrificationTotal , ,438 The BMP values represent the total amount of implementation in place. Page 11 of 13

12 Maryland Phase II MAST Submittals MONTGOMERY Total Nitrogen Loads Source Sector Landuse Target Stormwater CSS Construction Extractive Regulated Developed Subtotal Septic Septic Subtotal The columns labeled include the State Highway Administration (SHA) strategies as well as levels for other entities. The columns for and strategies include numbers for SHA, federal facilities, State lands, industrial facilities, Phase I and II MS4 and non-regulated stormwater where applicable. They also reflect changes made by the State. MONTGOMERY Total Phosphorus Loads Source Sector Landuse Target Stormwater CSS Construction Extractive Regulated Developed Subtotal Septic Septic Subtotal The columns labeled include the State Highway Administration (SHA) strategies as well as levels for other entities. The columns for and strategies include numbers for SHA, federal facilities, State lands, industrial facilities, Phase I and II MS4 and non-regulated stormwater where applicable. They also reflect changes made by the State. Page 12 of 13

13 Total Sediment Loads Source Sector Landuse Stormwater CSS Construction Extractive Regulated Developed Subtotal Septic Septic Subtotal The columns labeled include the State Highway Administration (SHA) strategies as well as levels for other entities. The columns for and strategies include numbers for SHA, federal facilities, State lands, industrial facilities, Phase I and II MS4 and non-regulated stormwater where applicable. They also reflect changes made by the State. Page 13 of 13