Region Number of Water Bodies Modeled Water Bodies in Exceedance of Critical Load Percent Reduction
2000–2002 2019–2021
Number of Sites Percent of Sites Number of Sites Percent of Sites
New England
(CT, MA, ME, NH, RI, VT)
2,309 Water Bodies in Exceedance of Critical Load, 2000–2002 548 24% Water Bodies in Exceedance of Critical Load, 2017–2019 101 4% 82%
Adirondack
(NY)
1,581 Water Bodies in Exceedance of Critical Load, 2000–2002 688 44% Water Bodies in Exceedance of Critical Load, 2017–2019 151 10% 78%
Northern Mid-Atlantic
(NY, NJ, PA)
1,200 Water Bodies in Exceedance of Critical Load, 2000–2002 351 29% Water Bodies in Exceedance of Critical Load, 2017–2019 32 3% 91%
Southern Mid-Atlantic
(KY, MD, VA, WV)
1,840 Water Bodies in Exceedance of Critical Load, 2000–2002 1000 54% Water Bodies in Exceedance of Critical Load, 2017–2019 94 5% 91%
Southern Appalachian Mountains
(AL, GA, SC, TN)
939 Water Bodies in Exceedance of Critical Load, 2000–2002 364 39% Water Bodies in Exceedance of Critical Load, 2017–2019 80 9% 78%
Total Units 7,869 Water Bodies in Exceedance of Critical Load, 2000–2002 2,951 38% Water Bodies in Exceedance of Critical Load, 2017–2019 458 5.8% 84%