chesapeake bay tmdl phase iii wip northern virginia la
TRANSCRIPT
Chesapeake Bay TMDLPhase III WIP
Northern Virginia LA
3RD STAKEHOLDER MEETING
OCTOBER 26, 2018
NORMAND GOULET
NVRC
Input Deck Development Process
• CAST Progress Run DATA
• Graph 2009 – 2017 Implementation Progress Results
• Project 2025 Implementation Based on Regression
• CAST Scoping Runs @ 2025
• DEQ WIP II (Land-River Segments) Aggregated to PDC Boundary
• Development BMPs
• Development BMPs + Natural BMPs
• Development BMPs + Natural BMPs + Septic BMPs
• Development BMPs + Natural BMPs + Septic BMPs + WIP II BMPs
Development BMPs
y = 12.74x - 25313
R² = 0.89
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Bioretention/Raingardens - A/B soils, underdrain
Development BMPs
y = 14.281x - 28611R² = 0.96
0
50
100
150
200
250
300
350
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Bioretention/Raingardens - C/D soils, underdrain
Development BMPs
y = 6.4868x - 13024R² = 0.75
0
20
40
60
80
100
120
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Bioswale
Development BMPs
y = 98.617x - 186029R² = 0.85
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000
15,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Dry Detention Ponds and Hydrodynamic Structures
Development BMPs
y = 268.23x - 523384R² = 0.98
0
5,000
10,000
15,000
20,000
25,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Dry Extended Detention Ponds
Development BMPs
y = 22.543x - 45205R² = 0.92
0
2,000
4,000
6,000
8,000
10,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Filtering Practices
Development BMPs
y = -24.2x + 49325R² = 0.10
0
200
400
600
800
1,000
1,200
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Forest Harvesting Practices
Development BMPs
y = 2.4x - 4823.2R² = 0.09
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Impervious Surface Reduction
Development BMPs
y = 37.95x - 74866R² = 0.91
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Infiltration Practices w/ Sand, Veg. - A/B soils, no underdrain
Development BMPs
y = 3.9414x - 7835.4R² = 0.94
0
20
40
60
80
100
120
140
160
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Infiltration Practices w/o Sand, Veg. - A/B soils, no underdrain
Development BMPs
y = 441.45x - 879271R² = 0.03
-5,000
5,000
15,000
25,000
35,000
45,000
55,000
65,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Nutrient Management Plan
Development BMPs
y = 0.1667x - 335.06R² = 0.75
0
0.5
1
1.5
2
2.5
3
20
09
20
10
20
11
20
12
20
13
20
14
20
15
20
16
20
17
20
18
20
19
20
20
20
21
20
22
20
23
20
24
20
25
Permeable Pavement w/ Sand, Veg. - A/B soils, no
underdrain
y = 0.4158x - 828.69R² = 0.85
02468
10121416
20
09
20
10
20
11
20
12
20
13
20
14
20
15
20
16
20
17
20
18
20
19
20
20
20
21
20
22
20
23
20
24
20
25
Permeable Pavement w/ Sand, Veg. - C/D soils,
underdrain
y = 0.3838x - 770.15R² = 0.88
0
1
2
3
4
5
6
7
8
Permeable Pavement w/o Sand, Veg. - C/D soils, underdrain
WIP II – 10 acresWIP III – 24 acres
Development BMPs
y = 23.888x - 47588R² = 0.90
0
100
200
300
400
500
600
700
800
900
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Stormwater Performance Standard - Runoff Reduction
Development BMPs
y = 280.9x - 549220R² = 0.77
0
5,000
10,000
15,000
20,000
25,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Acres Treated - Stormwater Performance Standard - Stormwater Treatment
Development BMPs
y = 0.1167x - 234.63R² = 0.53
0
0.4
0.8
1.2
1.6
2
Vegetated Open Channels - A/B soils, no underdrain
y = 0.2167x - 430.37R² = 0.21
0
1
2
3
4
5
6
7
8
9
10
Vegetated Open Channels - C/D soils, no underdrain
Development BMPs
y = 343.3x - 673924R² = 0.93
0
5,000
10,000
15,000
20,000
25,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Wet Ponds and Wetlands
Natural BMPs
y = 22.988x - 42319R² = 0.01
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Feet of Urban Stream Restoration
Natural BMPs
y = 209.02x - 391971R² = 0.03
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Feet of Non Urban Stream Restoration
Septic BMPs
y = 30x - 60339R² = 0.7517
0
1000
2000
3000
4000
5000
6000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Septic Connection
Septic BMPs
y = 7.3001x2 - 29349x + 3E+07R² = 0.99
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Systems - Septic Denitrification - Conventional
Septic BMPs
y = 4.0287x2 - 16208x + 2E+07R² = 0.87
0
100
200
300
400
500
600
700
800
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Systems - Septic Denitrification - Enhanced
Septic BMPs
y = -21.55x + 43445R² = 0.93
0
20
40
60
80
100
120
140
160
180
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Systems - Septic Effluent - Enhanced
Septic BMPs
y = -55.679x + 113706R² = 0.32
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
2,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Systems - Septic Secondary Treatment - Conventional
Septic BMPs
y = 1.8357x - 3663R² = 0.31
0
10
20
30
40
50
60
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
Number of Systems - Septic Secondary Treatment - Enhanced
Septic BMPs
y = -674.19x + 1E+06R² = 0.48
0
2,000
4,000
6,000
8,000
10,000
12,000
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
2009 2010 2011 2012 2013 2014 2015 2016 2017
Septic Pumping 7,754 9,747 11,226 10,200 5878 7,115 5903 2,573 6,455
Number of Systems - Septic Pumping
Development BMPs
Sector LAPG BMPs (grey background are Annual BMPs) Unit 2,017 WIP 22025
Available WIP 3Developed Bioretention/raingardens - A/B soils acres 405 4,971 200,698 500Developed Bioretention/raingardens - C/D soils acres 185 0 200,698 300Developed Bioswale acres 71 0 200,606 115Developed Dirt & Gravel Road Erosion & Sediment Control feet 0 104 33,568Developed Dirt & Gravel Road Erosion & Sediment Control - Outlets feet 0 254 16,784Developed Dry Detention Ponds and Hydrodynamic Structures acres 13,393 9,593 200,698 13,600Developed Dry Extended Detention Ponds acres 17,120 18,399 200,698 20,000Developed Filtering Practices acres 240 10,286 200,698 450Developed Forest Buffer acres 0 448 94,875Developed Forest Planting acres 6 111 94,875 100Developed Impervious Surface Reduction acres 80 4,409 69,073 100Developed Infiltration acres 1,861 9,721 200,698 2,140Developed Nutrient Management Plan acres 2,747 65,211 134,044 15,000Developed Permeable Pavement acres 15 10 200,698 24Developed Storm Drain Cleaning pounds 0 0 N/ADeveloped Stormwater Performance Standard-Runoff Reduction acres 631 0 200,688 800
Developed Stormwater Performance Standard-Stormwater Treatment acres 16,165 0 200,698 20,000Developed Street Cleaning acres 0 1,203 25,693Developed Tree Planting - Canopy acres 0 0 91,536Developed Vegetated Open Channels - A/B acres 1 242 200,698 1Developed Vegetated Open Channels - C/D soils acres 7 0 192,552 10Developed Wet Ponds and Wetlands acres 18,289 18,727 200,698 21,000
Natural and Septic BMPs
Sector LAPG BMPs (grey background are Annual BMPs) Unit 2,017 WIP 22025
Available WIP 3Natural Algal Flow-way Non-Tidal acres 0 0 200,698Natural Algal Flow-way Tidal acres 0 0 200,698Natural Algal Flow-way Tidal Monitored pounds 0 0 N/ANatural Urban Shoreline Management feet 103 0 643,810 150
Non-Urban Stream Restoration feet 31,000Natural Urban Stream Restoration feet 4,259 8,112 8,844,467 8,000Natural Wetland Enhancement acres 0 0 21,174Natural Wetland Rehabilitation acres 0 0 21,174
Septic Septic Connection systems 142 5,576 42,167 400Septic Septic Denitrification-Conventional systems 365 9,900 38,255 1,600Septic Septic Denitrification-Enhanced systems 130 0 38,078 700Septic Septic Effluent - Enhanced systems 1 0 24,849 1Septic Septic Pumping systems 6,647 8,314 38,255 8,300Septic Septic Secondary Treatment Conventional systems 1,091 0 38,255 1,800Septic Septic Secondary Treatment Enhanced systems 49 0 38,255 50
Questions, Comments
• Is the Region comfortable with the Methodology - ??
Input Deck Development Process
• CAST Progress Run DATA
• Graph 2009 – 2017 Implementation Progress Results
• Project 2025 Implementation Based on Regression
• CAST Scoping Runs @ 2025
• DEQ WIP II (Land-River Segments) Aggregated to PDC Boundary
• Development BMPs
• Development BMPs + Natural BMPs
• Development BMPs + Natural BMPs + Septic BMPs
• Development BMPs + Natural BMPs + Septic BMPs + WIP II BMPs
Draft Phosphorus Input DeckLAPG Loads (LBS) Phosphorus (Edge of Tide)
VA Specified WIP 2WIP II DEQ
Input @ PDC Scale
PDC8 - WIP IIIRun 1
PDC8 - WIP III Run 1 + Septic
PDC8 - WIP IIIRun 1 + Septic +
Natural
PDC8 - WIP III Run 2
Sector: Non-Regulated Developed
Non-Regulated Buildings and Other 13,274 13,213 14,733 14,733 14,733 14,714
Non-Regulated Roads 6,737 6,706 7,478 7,478 7,478 7,468
Non-Regulated Tree Canopy over Impervious 2,985 2,972 3,315 3,315 3,315 3,310
Non-Regulated Tree Canopy over Turf Grass 20,490 19,338 20,093 20,093 20,093 20,069
Non-Regulated Turf Grass 69,019 65,639 67,154 67,154 67,154 66,710
Total (lbs) 112,505 107,867 112,773 112,773 112,773 112,272
LAPG Delta (lbs)
Sector: Natural
Harvested Forest 191 191 191 191 191 191
Headwater or Isolated Wetland 270 275 275 275 275 275
Mixed Open 8,184 8,184 8,184 8,184 8,184 8,184
Non-tidal Floodplain Wetland 592 592 592 592 592 592
Shoreline 19,798 19,797 19,797 19,797 19,797 19,797
Stream Bed and Bank 100,970 102,331 103,893 103,893 103,030 102,868
True Forest 9,243 9,156 9,139 9,139 9,139 9,156
Water 5,253 5,253 5,253 5,253 5,253 5,253
Total (lbs) 144,502 145,779 147,324 147,324 146,461 146,316
LAPG Delta (lbs)
Grand Total (lbs) 257,007 253,645 260,097 260,097 259,234 258,588
LAPG Delta (lbs)
Draft Phosphorus Input DeckLAPG Loads (LBS) Phosphorus (Edge of Tide)
VA Specified WIP 2WIP II DEQ
Input @ PDC Scale
PDC8 - WIP III Run 1
PDC8 - WIP III Run 1 + Septic
PDC8 - WIP IIIRun 1 + Septic +
Natural
PDC8 - WIP III Run 2
Sector: Non-Regulated Developed
Non-Regulated Buildings and Other 13,274 13,213 14,733 14,733 14,733 14,714
Non-Regulated Roads 6,737 6,706 7,478 7,478 7,478 7,468
Non-Regulated Tree Canopy over Impervious 2,985 2,972 3,315 3,315 3,315 3,310
Non-Regulated Tree Canopy over Turf Grass 20,490 19,338 20,093 20,093 20,093 20,069
Non-Regulated Turf Grass 69,019 65,639 67,154 67,154 67,154 66,710
Total (lbs) 112,505 107,867 112,773 112,773 112,773 112,272
LAPG Delta (lbs) -4,906
Sector: Natural
Harvested Forest 191 191 191 191 191 191
Headwater or Isolated Wetland 270 275 275 275 275 275
Mixed Open 8,184 8,184 8,184 8,184 8,184 8,184
Non-tidal Floodplain Wetland 592 592 592 592 592 592
Shoreline 19,798 19,797 19,797 19,797 19,797 19,797
Stream Bed and Bank 100,970 102,331 103,893 103,893 103,030 102,868
True Forest 9,243 9,156 9,139 9,139 9,139 9,156
Water 5,253 5,253 5,253 5,253 5,253 5,253
Total (lbs) 144,502 145,779 147,324 147,324 146,461 146,316
LAPG Delta (lbs) -1,545
Grand Total (lbs) 257,007 253,645 260,097 260,097 259,234 258,588
LAPG Delta (lbs) -6,451
Draft Phosphorus Input DeckLAPG Loads (LBS) Phosphorus (Edge of Tide)
VA Specified WIP 2WIP II DEQ
Input @ PDC Scale
PDC8 - WIP III Run 1
PDC8 - WIP III Run 1 + Septic
PDC8 - WIP IIIRun 1 + Septic +
Natural
PDC8 - WIP III Run 2
Sector: Non-Regulated Developed
Non-Regulated Buildings and Other 13,274 13,213 14,733 14,733 14,733 14,714
Non-Regulated Roads 6,737 6,706 7,478 7,478 7,478 7,468
Non-Regulated Tree Canopy over Impervious 2,985 2,972 3,315 3,315 3,315 3,310
Non-Regulated Tree Canopy over Turf Grass 20,490 19,338 20,093 20,093 20,093 20,069
Non-Regulated Turf Grass 69,019 65,639 67,154 67,154 67,154 66,710
Total (lbs) 112,505 107,867 112,773 112,773 112,773 112,272
LAPG Delta (lbs) -4,906 -4,906
Sector: Natural
Harvested Forest 191 191 191 191 191 191
Headwater or Isolated Wetland 270 275 275 275 275 275
Mixed Open 8,184 8,184 8,184 8,184 8,184 8,184
Non-tidal Floodplain Wetland 592 592 592 592 592 592
Shoreline 19,798 19,797 19,797 19,797 19,797 19,797
Stream Bed and Bank 100,970 102,331 103,893 103,893 103,030 102,868
True Forest 9,243 9,156 9,139 9,139 9,139 9,156
Water 5,253 5,253 5,253 5,253 5,253 5,253
Total (lbs) 144,502 145,779 147,324 147,324 146,461 146,316
LAPG Delta (lbs) -1,545 -1,545 -682 -537
Grand Total (lbs) 257,007 253,645 260,097 260,097 259,234 258,588
LAPG Delta (lbs) -6,451 -6,451
Draft Phosphorus Input DeckLAPG Loads (LBS) Phosphorus (Edge of Tide)
VA Specified WIP 2WIP II DEQ
Input @ PDC Scale
PDC8 - WIP III Run 1
PDC8 - WIP III Run 1 + Septic
PDC8 - WIP III Run 1 + Septic +
Natural
PDC8 - WIP III Run 2
Sector: Non-Regulated Developed
Non-Regulated Buildings and Other 13,274 13,213 14,733 14,733 14,733 14,714
Non-Regulated Roads 6,737 6,706 7,478 7,478 7,478 7,468
Non-Regulated Tree Canopy over Impervious 2,985 2,972 3,315 3,315 3,315 3,310
Non-Regulated Tree Canopy over Turf Grass 20,490 19,338 20,093 20,093 20,093 20,069
Non-Regulated Turf Grass 69,019 65,639 67,154 67,154 67,154 66,710
Total (lbs) 112,505 107,867 112,773 112,773 112,773 112,272
LAPG Delta (lbs) -4,906 -4,906 -4,906
Sector: Natural
Harvested Forest 191 191 191 191 191 191
Headwater or Isolated Wetland 270 275 275 275 275 275
Mixed Open 8,184 8,184 8,184 8,184 8,184 8,184
Non-tidal Floodplain Wetland 592 592 592 592 592 592
Shoreline 19,798 19,797 19,797 19,797 19,797 19,797
Stream Bed and Bank 100,970 102,331 103,893 103,893 103,030 102,868
True Forest 9,243 9,156 9,139 9,139 9,139 9,156
Water 5,253 5,253 5,253 5,253 5,253 5,253
Total (lbs) 144,502 145,779 147,324 147,324 146,461 146,316
LAPG Delta (lbs) -1,545 -1,545 -682
Grand Total (lbs) 257,007 253,645 260,097 260,097 259,234 258,588
LAPG Delta (lbs) -6,451 -6,451 -5,589
Draft Phosphorus Input DeckLAPG Loads (LBS) Phosphorus (Edge of Tide)
VA Specified WIP 2WIP II DEQ
Input @ PDC Scale
PDC8 - WIP III Run 1
PDC8 - WIP III Run 1 + Septic
PDC8 - WIP III Run 1 + Septic +
Natural
PDC8 - WIP III Run 2
Sector: Non-Regulated Developed
Non-Regulated Buildings and Other 13,274 13,213 14,733 14,733 14,733 14,714
Non-Regulated Roads 6,737 6,706 7,478 7,478 7,478 7,468
Non-Regulated Tree Canopy over Impervious 2,985 2,972 3,315 3,315 3,315 3,310
Non-Regulated Tree Canopy over Turf Grass 20,490 19,338 20,093 20,093 20,093 20,069
Non-Regulated Turf Grass 69,019 65,639 67,154 67,154 67,154 66,710
Total (lbs) 112,505 107,867 112,773 112,773 112,773 112,272
LAPG Delta (lbs) -4,906 -4,906 -4,906 -4,405
Sector: Natural
Harvested Forest 191 191 191 191 191 191
Headwater or Isolated Wetland 270 275 275 275 275 275
Mixed Open 8,184 8,184 8,184 8,184 8,184 8,184
Non-tidal Floodplain Wetland 592 592 592 592 592 592
Shoreline 19,798 19,797 19,797 19,797 19,797 19,797
Stream Bed and Bank 100,970 102,331 103,893 103,893 103,030 102,868
True Forest 9,243 9,156 9,139 9,139 9,139 9,156
Water 5,253 5,253 5,253 5,253 5,253 5,253
Total (lbs) 144,502 145,779 147,324 147,324 146,461 146,316
LAPG Delta (lbs) -1,545 -1,545 -682 -537
Grand Total (lbs) 257,007 253,645 260,097 260,097 259,234 258,588
LAPG Delta (lbs) -6,451 -6,451 -5,589 -4,942
Dra
ft N
itro
gen
In
pu
t D
eck LAPG Loads
Nitrogen (Edge of Tide)
VA Specified WIP 2WIP II DEQ Input
@ PDC ScalePDC8 - WIP III
Run 1PDC8 - WIP IIIRun 1 + Septic
PDC8 - WIP III Run 1 + Septic + Natural
PDC8 - WIP IIIRun 2
Sector: Non-Regulated Developed (45%)Non-Regulated Buildings and Other 186,054 185,287 207,404 207,404 207,404 207,268Non-Regulated Roads 99,740 99,329 111,184 111,184 111,184 111,104Non-Regulated Tree Canopy over Impervious 50,579 50,370 56,398 56,398 56,398 56,359Non-Regulated Tree Canopy over Turf Grass 102,913 99,258 104,887 104,887 104,887 104,819Non-Regulated Turf Grass 330,365 319,796 335,224 335,224 335,224 333,232Total (lbs) 769,651 754,039 815,098 815,098 815,098 812,781LAPG Delta (lbs)
Sector: Natural (40%)Harvested Forest 8,930 8,930 8,930 8,930 8,930 8,930Headwater or Isolated Wetland 3,210 3,300 3,300 3,300 3,300 3,300Mixed Open 38,526 38,526 38,526 38,526 38,526 38,526Non-tidal Floodplain Wetland 8,592 8,592 8,592 8,592 8,592 8,592Shoreline 28,007 28,006 28,006 28,006 28,006 28,006Stream Bed and Bank 359,941 369,777 376,912 380,495 379,339 379,076True Forest 162,971 161,386 161,106 161,106 161,106 161,385Water 70,103 70,103 70,103 70,103 70,103 70,103Total (lbs) 680,280 688,621 695,475 699,058 697,902 697,918LAPG Delta (lbs) 0.1429
Sector: Septic (14%)Rapid Infiltration Basin 558 558 558 558 558 558Septic 241,218 241,218 241,218 269,373 269,373 269,373Total (lbs) 241,777 241,777 241,777 269,932 269,932 269,932
Grand Total (lbs) 1,691,708 1,684,437 1,752,350 1,784,088 1,782,932 1,780,631LAPG Delta (lbs)
Dra
ft N
itro
gen
In
pu
t D
eck LAPG Loads
Nitrogen (Edge of Tide)
VA Specified WIP 2WIP II DEQ Input
@ PDC ScalePDC8 - WIP III
Run 1PDC8 - WIP IIIRun 1 + Septic
PDC8 - WIP III Run 1 + Septic + Natural
PDC8 - WIP IIIRun 2
Sector: Non-Regulated Developed (45%)Non-Regulated Buildings and Other 186,054 185,287 207,404 207,404 207,404 207,268Non-Regulated Roads 99,740 99,329 111,184 111,184 111,184 111,104Non-Regulated Tree Canopy over Impervious 50,579 50,370 56,398 56,398 56,398 56,359Non-Regulated Tree Canopy over Turf Grass 102,913 99,258 104,887 104,887 104,887 104,819Non-Regulated Turf Grass 330,365 319,796 335,224 335,224 335,224 333,232Total (lbs) 769,651 754,039 815,098 815,098 815,098 812,781LAPG Delta (lbs) -61,059
Sector: Natural (40%)Harvested Forest 8,930 8,930 8,930 8,930 8,930 8,930Headwater or Isolated Wetland 3,210 3,300 3,300 3,300 3,300 3,300Mixed Open 38,526 38,526 38,526 38,526 38,526 38,526Non-tidal Floodplain Wetland 8,592 8,592 8,592 8,592 8,592 8,592Shoreline 28,007 28,006 28,006 28,006 28,006 28,006Stream Bed and Bank 359,941 369,777 376,912 380,495 379,339 379,076True Forest 162,971 161,386 161,106 161,106 161,106 161,385Water 70,103 70,103 70,103 70,103 70,103 70,103Total (lbs) 680,280 688,621 695,475 699,058 697,902 697,918LAPG Delta (lbs) 0.1429 -6,854
Sector: Septic (14%)Rapid Infiltration Basin 558 558 558 558 558 558Septic 241,218 241,218 241,218 269,373 269,373 269,373Total (lbs) 241,777 241,777 241,777 269,932 269,932 269,932
Grand Total (lbs) 1,691,708 1,684,437 1,752,350 1,784,088 1,782,932 1,780,631LAPG Delta (lbs) -67,913
Dra
ft N
itro
gen
In
pu
t D
eck LAPG Loads
Nitrogen (Edge of Tide)
VA Specified WIP 2WIP II DEQ Input
@ PDC ScalePDC8 - WIP III
Run 1PDC8 - WIP IIIRun 1 + Septic
PDC8 - WIP III Run 1 + Septic + Natural
PDC8 - WIP IIIRun 2
Sector: Non-Regulated Developed (45%)Non-Regulated Buildings and Other 186,054 185,287 207,404 207,404 207,404 207,268Non-Regulated Roads 99,740 99,329 111,184 111,184 111,184 111,104Non-Regulated Tree Canopy over Impervious 50,579 50,370 56,398 56,398 56,398 56,359Non-Regulated Tree Canopy over Turf Grass 102,913 99,258 104,887 104,887 104,887 104,819Non-Regulated Turf Grass 330,365 319,796 335,224 335,224 335,224 333,232Total (lbs) 769,651 754,039 815,098 815,098 815,098 812,781LAPG Delta (lbs) -61,059 -61,059
Sector: Natural (40%)Harvested Forest 8,930 8,930 8,930 8,930 8,930 8,930Headwater or Isolated Wetland 3,210 3,300 3,300 3,300 3,300 3,300Mixed Open 38,526 38,526 38,526 38,526 38,526 38,526Non-tidal Floodplain Wetland 8,592 8,592 8,592 8,592 8,592 8,592Shoreline 28,007 28,006 28,006 28,006 28,006 28,006Stream Bed and Bank 359,941 369,777 376,912 380,495 379,339 379,076True Forest 162,971 161,386 161,106 161,106 161,106 161,385Water 70,103 70,103 70,103 70,103 70,103 70,103Total (lbs) 680,280 688,621 695,475 699,058 697,902 697,918LAPG Delta (lbs) 0.1429 -6,854 -10,437
Sector: Septic (14%)Rapid Infiltration Basin 558 558 558 558 558 558Septic 241,218 241,218 241,218 269,373 269,373 269,373Total (lbs) 241,777 241,777 241,777 269,932 269,932 269,932
Grand Total (lbs) 1,691,708 1,684,437 1,752,350 1,784,088 1,782,932 1,780,631LAPG Delta (lbs) -67,913 -99,651
Dra
ft N
itro
gen
In
pu
t D
eck LAPG Loads
Nitrogen (Edge of Tide)
VA Specified WIP 2WIP II DEQ Input
@ PDC ScalePDC8 - WIP III
Run 1PDC8 - WIP IIIRun 1 + Septic
PDC8 - WIP III Run 1 + Septic + Natural
PDC8 - WIP IIIRun 2
Sector: Non-Regulated Developed (45%)Non-Regulated Buildings and Other 186,054 185,287 207,404 207,404 207,404 207,268Non-Regulated Roads 99,740 99,329 111,184 111,184 111,184 111,104Non-Regulated Tree Canopy over Impervious 50,579 50,370 56,398 56,398 56,398 56,359Non-Regulated Tree Canopy over Turf Grass 102,913 99,258 104,887 104,887 104,887 104,819Non-Regulated Turf Grass 330,365 319,796 335,224 335,224 335,224 333,232Total (lbs) 769,651 754,039 815,098 815,098 815,098 812,781LAPG Delta (lbs) -61,059 -61,059 -61,059
Sector: Natural (40%)Harvested Forest 8,930 8,930 8,930 8,930 8,930 8,930Headwater or Isolated Wetland 3,210 3,300 3,300 3,300 3,300 3,300Mixed Open 38,526 38,526 38,526 38,526 38,526 38,526Non-tidal Floodplain Wetland 8,592 8,592 8,592 8,592 8,592 8,592Shoreline 28,007 28,006 28,006 28,006 28,006 28,006Stream Bed and Bank 359,941 369,777 376,912 380,495 379,339 379,076True Forest 162,971 161,386 161,106 161,106 161,106 161,385Water 70,103 70,103 70,103 70,103 70,103 70,103Total (lbs) 680,280 688,621 695,475 699,058 697,902 697,918LAPG Delta (lbs) 0.1429 -6,854 -10,437 -9,281
Sector: Septic (14%)Rapid Infiltration Basin 558 558 558 558 558 558Septic 241,218 241,218 241,218 269,373 269,373 269,373Total (lbs) 241,777 241,777 241,777 269,932 269,932 269,932
Grand Total (lbs) 1,691,708 1,684,437 1,752,350 1,784,088 1,782,932 1,780,631LAPG Delta (lbs) -67,913 -99,651 -98,495
Dra
ft N
itro
gen
In
pu
t D
eck LAPG Loads
Nitrogen (Edge of Tide)
VA Specified WIP 2WIP II DEQ Input
@ PDC ScalePDC8 - WIP III
Run 1PDC8 - WIP IIIRun 1 + Septic
PDC8 - WIP III Run 1 + Septic + Natural
PDC8 - WIP III Run 2
Sector: Non-Regulated Developed (45%)Non-Regulated Buildings and Other 186,054 185,287 207,404 207,404 207,404 207,268Non-Regulated Roads 99,740 99,329 111,184 111,184 111,184 111,104Non-Regulated Tree Canopy over Impervious 50,579 50,370 56,398 56,398 56,398 56,359Non-Regulated Tree Canopy over Turf Grass 102,913 99,258 104,887 104,887 104,887 104,819Non-Regulated Turf Grass 330,365 319,796 335,224 335,224 335,224 333,232Total (lbs) 769,651 754,039 815,098 815,098 815,098 812,781LAPG Delta (lbs) -61,059 -61,059 -61,059 -58,742
Sector: Natural (40%)Harvested Forest 8,930 8,930 8,930 8,930 8,930 8,930Headwater or Isolated Wetland 3,210 3,300 3,300 3,300 3,300 3,300Mixed Open 38,526 38,526 38,526 38,526 38,526 38,526Non-tidal Floodplain Wetland 8,592 8,592 8,592 8,592 8,592 8,592Shoreline 28,007 28,006 28,006 28,006 28,006 28,006Stream Bed and Bank 359,941 369,777 376,912 380,495 379,339 379,076True Forest 162,971 161,386 161,106 161,106 161,106 161,385Water 70,103 70,103 70,103 70,103 70,103 70,103Total (lbs) 680,280 688,621 695,475 699,058 697,902 697,918LAPG Delta (lbs) 0.1429 -6,854 -10,437 -9,281 -9,297
Sector: Septic (14%)Rapid Infiltration Basin 558 558 558 558 558 558Septic 241,218 241,218 241,218 269,373 269,373 269,373Total (lbs) 241,777 241,777 241,777 269,932 269,932 269,932
Grand Total (lbs) 1,691,708 1,684,437 1,752,350 1,784,088 1,782,932 1,780,631LAPG Delta (lbs) -67,913 -99,651 -98,495 -96,194
Proposed Input Deck BMPsLAPG BMPs (grey background are Annual BMPs) WIP 2 WIP 3
Bioretention/raingardens - A/B soils 4,971 500Bioretention/raingardens - C/D soils 0 300
Bioswale 0 115Dirt & Gravel Road Erosion & Sediment Control 104 100
Dirt & Gravel Road Erosion & Sediment Control - Outlets 254 250Dry Detention Ponds and Hydrodynamic Structures 9,593 13,600
Dry Extended Detention Ponds 18,399 20,000Filtering Practices 10,286 450
Forest Buffer 448 448Forest Planting 111 100
Impervious Surface Reduction 4,409 100Infiltration 9,721 2,140
Nutrient Management Plan 65,211 15,000Permeable Pavement 10 24Storm Drain Cleaning 0 0
Stormwater Performance Standard-Runoff Reduction 0 800
Stormwater Performance Standard-Stormwater Treatment 0 20,000Street Cleaning 1,203 1203
Tree Planting - Canopy 0 0Vegetated Open Channels - A/B 242 1
Vegetated Open Channels - C/D soils 0 10Wet Ponds and Wetlands 18,727 21,000
LAPG BMPs (grey background are Annual BMPs) WIP 2 WIP 3Algal Flow-way Non-Tidal 0 0
Algal Flow-way Tidal 0 0Algal Flow-way Tidal Monitored 0 0Urban Shoreline Management 0 150Non-Urban Stream Restoration 31,000
Urban Stream Restoration 8,112 8,000Wetland Enhancement 0 0Wetland Rehabilitation 0 0
Septic Connection 5,576 400Septic Denitrification-Conventional 9,900 1,600
Septic Denitrification-Enhanced 0 700Septic Effluent - Enhanced 0 1
Septic Pumping 8,314 8,300Septic Secondary Treatment Conventional 0 1,800
Septic Secondary Treatment Enhanced 0 50
Questions, Comments
• Is the Region comfortable with the Proposed BMPs - ??
• Are there other BMPs the Region wishes to include - ??
• Is the Region comfortable submitting Input Deck to DEQ below LAPG:
• Not Aggressive Enough - ??
• Just Right - ??
• Too Aggressive - ??
Phase III WIP Planning Next Steps
Aug. 17 – Stakeholder meeting #1
Sept. 15 – Interim report due (Activity 1)
Sept. 21 – Stakeholder meeting #2
Oct. 26 – Stakeholder meeting #3
Nov 19th or 21st – Revise BMP input decks (Activity 2), Identify programmatic actions for Phase III WIP implementation (Activity 3)
Dec. 6th Joint meeting – Area II SWCD, Rapp PDC, Thomas Jefferson PDC
Dec. 15 - Final Project Report due to DEQ
44
Contact information
Normand GouletDirector, Division of Planning and Environmental ServicesNorthern Virginia Regional Commission
● https://www.novaregion.org/1398/Virginia-Chesapeake-Bay-Phase-III-WIP