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Table B11. Acres (1,000) Where the Potential Concentration at the Bottom of the Root Zone Exceeds a Multiple of the Water Quality Thresholds for One or More of Atrazine, Metolachlor, Alachlor, Cyanazine, or Simazine.
NRCS Region/State Acres Treated Multiple of Water Quality Thresholds
> 1 > 2 > 3 > 5 > 7 > 10 > 15 > 20 > 25
East Region 3,922 1,706 586 175 103 62 32 10 4 0
Connecticut 48 48 14 3 3 3 2 0 0 0
Delaware 242 141 95 66 59 38 24 9 3 0
Maine 22 5 0 0 0 0 0 0 0 0
Maryland 656 423 324 70 22 11 4 1 0 0
Massachusetts 34 32 9 3 3 2 1 0 0 0
New Hampshire 14 14 3 2 0 0 0 0 0 0
New Jersey 191 66 29 11 3 3 1 0 0 0
New York 1,020 247 34 11 8 4 0 0 0 0
Pennsylvania 1,508 642 64 5 2 0 0 0 0 0
Rhode Island 2 2 0 0 0 0 0 0 0 0
Vermont 91 51 7 3 2 1 0 0 0 0
West Virginia 97 36 8 1 1 0 0 0 0 0
Midwest Region 42,845 10,964 4,394 2,124 1,244 558 218 87 26 10
Illinois 11,334 2,633 1,498 409 226 82 50 31 10 7
Indiana 6,609 1,648 811 517 259 93 15 12 2 2
Iowa 9,359 1,583 161 82 30 19 1 0 0 0
Michigan 2,956 1,448 848 485 334 144 48 20 4 0
Minnesota 3,074 312 95 72 37 15 0 0 0 0
Missouri 3,487 1,284 511 322 225 88 62 14 10 2
Ohio 3,799 771 89 41 9 7 0 0 0 0
Wisconsin 2,228 1,285 379 198 124 110 41 9 0 0
Northern Plains 14,103 3,758 2,993 1,703 573 549 456 347 21 6
Colorado 515 132 59 45 5 4 0 0 0 0
Kansas 4,327 1,115 925 832 202 195 156 122 7 6
Montana 6 2 2 1 1 1 1 1 1 0
Nebraska 7,844 2,480 1,999 818 362 346 298 223 13 0
North Dakota 152 3 1 1 0 0 0 0 0 0
South Dakota 1,240 20 5 3 3 3 1 1 0 0
Wyoming 20 6 3 3 0 0 0 0 0 0
South Central 8,462 1,359 1,001 834 374 212 89 11 0 0
Arkansas 1,217 207 122 79 46 14 1 0 0 0
Louisiana 1,255 173 81 60 24 7 4 0 0 0
Oklahoma 365 109 46 36 12 6 1 0 0 0
Texas 5,625 869 752 660 292 185 83 11 0 0
Southeast Region 10,370 4,988 3,891 2,562 1,305 891 483 322 119 82
Alabama 829 432 275 222 189 114 48 23 20 14
Florida 185 120 113 104 100 94 78 25 16 4
Georgia 1,349 951 859 699 630 555 310 263 80 65
Kentucky 1,654 732 559 230 15 3 1 0 0 0
Mississippi 1,719 258 154 121 64 47 25 3 1 0
North Carolina 1,785 942 781 556 153 36 7 1 0 0
South Carolina 975 501 399 180 75 32 10 7 2 0
Tennessee 1,284 701 504 338 76 11 4 2 0 0
Virginia 590 352 249 114 4 0 0 0 0 0
West Region 496 127 97 70 37 24 12 5 4 1
Arizona 149 0 0 0 0 0 0 0 0 0
California 175 71 62 45 23 18 6 2 1 1
Hawaii 0 0 0 0 0 0 0 0 0 0
Idaho 36 6 0 0 0 0 0 0 0 0
Nevada 1 0 0 0 0 0 0 0 0 0
New Mexico 73 19 13 11 8 7 6 3 3 0
Oregon 19 8 2 2 2 0 0 0 0 0
Utah 8 0 0 0 0 0 0 0 0 0
Washington 35 23 19 12 4 0 0 0 0 0
US Total 80,198 22,902 12,961 7,468 3,636 2,295 1,289 781 173 99

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