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Table 4. Acres (1,000) Where the Potential Leaching Concentration at the Bottom of the Root Zone Exceeds a Multiple of One or More Water Quality Thresholds for Fish
NRCS Region/State Acres Treated Multiples of the Safe Thresholds
> 1 > 2 > 3 > 5 > 7 > 10 > 15 > 20 > 25
Connecticut 55.6 3.4 3.4 3.4 3.3 1 0.2 0 0 0
Delaware 278.8 12.1 12 10.8 10 7.1 5.1 2.9 1.7 1.7
Maine 106 1.5 1.5 1.4 0.3 0.2 0 0 0 0
Maryland 778.2 43.2 41.7 33.5 22 7.5 3.7 0.6 0.3 0.2
Massachusetts 36.9 2.3 2.3 2.3 2.2 0.6 0.2 0 0 0
New Hampshire 13.5 1 1 1 0.7 0.2 0.1 0 0 0
New Jersey 225.6 7.9 7.9 4.9 2.5 1.9 0.5 0.3 0.2 0
New York 1136.6 125.5 124.1 103.7 12.5 2.6 0.3 0.1 0.1 0.1
Pennsylvania 1628.8 76.1 56.3 37.8 3.7 0.8 0.1 0 0 0
Rhode Island 3.1 0.1 0.1 0.1 0.1 0 0 0 0 0
Vermont 92.1 6.5 5.3 5.3 3.3 1.2 0.1 0 0 0
West Virginia 104.4 7.4 2.9 0.8 0.3 0 0 0 0 0
East Region Total 4459.6 287 258.5 205 60.9 23.1 10.3 3.9 2.3 2
Illinois 13885.9 128.2 105.9 76.9 22.2 8.3 2.9 1.1 0.7 0.4
Indiana 7325.9 120.2 93 79.6 35.7 17 6.9 3.4 1.6 0.3
Iowa 13178.2 124.5 95 56.4 22.3 11.5 1.4 0.7 0.3 0
Michigan 3394.5 118.6 103.5 101.4 78 73.7 37.1 15.6 9.7 6.3
Minnesota 8068.3 80.7 47.4 33 16.3 14.5 6.6 3.7 0.3 0.1
Missouri 5186.2 176.9 148 122.5 72.2 27.6 14.8 3.2 1 0.5
Ohio 4670.8 59.7 41 34.8 8.6 3.1 1.6 0.3 0.1 0
Wisconsin 2349.9 97.3 93.1 89.4 62.1 24.7 14.2 10.5 7.8 5.1
Midwest Region Total 58059.7 906.1 726.9 594 317.4 180.4 85.5 38.5 21.5 12.7
Colorado 1865 48.8 38.9 33.5 19.2 10 7 5 0.4 0.2
Kansas 7277.9 350 328.1 284.5 266.4 215.1 177.1 150.8 53.2 46.8
Montana 3904.6 5.2 5.2 4.9 4.7 4.5 4.3 4.1 3.2 3.2
Nebraska 9066.1 287.5 258.5 243.4 217.4 124.5 112.3 97.4 31.3 26.8
North Dakota 8533.2 29.1 29.1 20.1 18.6 14.3 10.1 0.3 0.3 0.3
South Dakota 5632.7 127.3 21.8 20.3 7.3 3.5 2 0.7 0.5 0.5
Wyoming 328.6 11.4 10.7 7.3 5.6 2.5 1.2 1.1 0.5 0.1
Northern Plains Total 36608.1 859.3 692.3 614 539.2 374.4 314 259.4 89.4 77.9
Arkansas 4306.9 215.9 147.3 105.5 45.3 14.1 6.3 2 0 0
Louisiana 2138.8 269 225 174.8 36.8 20.6 12.5 5.5 3.5 3.1
Oklahoma 2447.5 36.1 34.3 31.2 21.2 17 15.1 6.6 5.4 3.6
Texas 10520.1 385.2 327 290.6 217 143.1 96.1 58.9 42.4 31
South Central Total 19413.3 906.2 733.6 602.1 320.3 194.8 130 73 51.3 37.7
Alabama 1477.6 549.6 425.5 309.8 271.3 240.9 203.8 79.9 45.4 14.1
Florida 359.2 136.4 132.8 130.7 114.7 109.4 79.2 58.4 23.2 12.8
Georgia 2380.5 1117.8 1106.6 1092.3 1019.5 937.7 869.1 679.8 336.2 141.2
Kentucky 2113.2 155.3 146.5 114 71.5 51.4 24.3 8.6 1.7 0.2
Mississippi 3135.7 201.5 149.3 118.9 55.1 32.2 21.9 13.2 9.7 8.7
North Carolina 3032.8 885.5 690.2 495 318.2 276.8 212.8 136.8 103.7 86.9
South Carolina 1487.9 235.6 200.3 148.2 124.1 97.9 75.6 62.9 55.4 43.5
Tennessee 2194.1 436.2 108.9 98.5 55 46.6 21.8 13.4 2.9 2.1
Virginia 908.5 191.2 122.2 89.8 41.5 35.9 24.1 18.2 9.4 8.3
Southeast Region Total 17089.5 3909.1 3082.3 2597.2 2070.9 1828.8 1532.6 1071.2 587.6 317.8
Arizona 356.8 2.2 0 0 0 0 0 0 0 0
California 1995.4 82.7 61.6 47.5 32.7 14.5 4.3 0.9 0.9 0.8
Idaho 1953.1 24.2 9.8 8.3 4 0 0 0 0 0
Nevada 3.2 0 0 0 0 0 0 0 0 0
New Mexico 335.4 11.5 9.9 9 6.7 5.3 4.5 2.3 1.4 1.4
Oregon 615.1 9.8 7.2 5.4 5 4.5 3.8 3.2 2.6 0
Utah 213.4 0.4 0.2 0.1 0 0 0 0 0 0
Washington 1212.5 26.8 20.2 17.8 12.6 10.9 10.3 9 6.5 6.5
West Region Total 6684.9 157.6 108.9 88.1 61 35.2 22.9 15.4 11.4 8.7
 
US TOTAL 142315.1 7025.3 5602.5 4700.4 3369.7 2636.7 2095.3 1461.4 763.5 456.8

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