Sign up to receive email updates, action alerts, health tips, promotions to support our work and more from EWG. You can opt-out at any time. [Privacy]

 

Table 21: 3.8 million individuals drink water from domestic wells that exceed federal nitrate standards

Pouring It On: Table 21: 3.8 million individuals drink water from domestic wells that exceed federal nitrate standards

February 1, 1996
State Population Above EPA Stds. % Contaminated Above EPA Stds.
Delaware 48,311 35.0%
Kansas 69,944 28.0%
Iowa 124,771 18.3%
California 428,301 15.0%
New York 239,685 15.0%
Nebraska 52,870 14.0%
Arizona 37,612 14.0%
Illinois 164,510 12.0%
Colorado 29,800 12.0%
Wisconsin 148,582 10.0%
Texas 80,404 9.4%
Minnesota 134,365 9.3%
Pennsylvania 245,241 9.0%
Connecticut 55,412 9.0%
Maryland 67,437 8.0%
Maine 43,100 8.0%
New Jersey 61,936 6.8%
South Dakota 9,428 6.7%
Virginia 96,205 6.4%
Wyoming 6,899 6.4%
Missouri 51,330 5.0%
Oregon 27,477 5.0%
North Dakota 7,170 4.6%
Indiana 69,900 4.5%
Kentucky 42,289 4.2%
Idaho 9,536 4.0%
Nevada 3,215 4.0%
Arkansas 22,341 3.9%
Ohio 66,474 3.8%
Montana 7,342 3.8%
North Carolina 59,926 3.2%
Alaska 4,763 3.2%
New Mexico 6,165 2.0%
Utah 1,140 2.0%
Washington 13,533 1.5%
New Hampshire 5,809 1.4%
Vermont 3,213 1.4%
Michigan 20,234 1.2%
Oklahoma 5,762 1.2%
Florida 17,099 1.0%
Georgia 13,141 1.0%
Massachusetts 5,118 1.0%
Tennessee 8,175 0.9%
West Virginia 5,396 0.9%
Louisiana 4,855 0.8%
South Carolina 9,579 0.7%
Mississippi 1,316 0.2%

Source: Compiled by Environmental Working Group from state and federal monitoring data.