Region Number of Water Bodies Modeled Water Bodies in Exceedance of Critical Load Percent Reduction
2000–2002 2018–2020
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 652 28% Water Bodies in Exceedance of Critical Load, 2017–2019 96 4% 85%
Adirondack
(NY)
1,581 Water Bodies in Exceedance of Critical Load, 2000–2002 834 53% Water Bodies in Exceedance of Critical Load, 2017–2019 156 10% 81%
Northern Mid-Atlantic
(NY, NJ, PA)
1,200 Water Bodies in Exceedance of Critical Load, 2000–2002 364 30% Water Bodies in Exceedance of Critical Load, 2017–2019 22 2% 94%
Southern Mid-Atlantic
(KY, MD, VA, WV)
1,841 Water Bodies in Exceedance of Critical Load, 2000–2002 974 53% Water Bodies in Exceedance of Critical Load, 2017–2019 103 6% 83%
Southern Appalachian Mountains
(AL, GA, SC, TN)
940 Water Bodies in Exceedance of Critical Load, 2000–2002 320 34% Water Bodies in Exceedance of Critical Load, 2017–2019 54 6% 83%
Total Units 7,871 Water Bodies in Exceedance of Critical Load, 2000–2002 3,144 40% Water Bodies in Exceedance of Critical Load, 2017–2019 431 5.5% 86%