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Table B2. Acres (1,000) Where the Potential Atrazine Runoff Concentration at the Edge of the Field Exceeds a Multiple of EPA's Maximum Contaminant Level (3 ppb)
NRCS Region/State Acres Treated Multiple of EPA's Maximum Contaminant Level
> 1 > 2 > 3 > 5 > 7 > 10 > 15 > 20 > 25
East Region 3,524 3,058 1,898 1,604 1,472 1,433 1,420 1,310 1,248 1,021
Connecticut 48 48 48 48 48 48 48 48 43 0
Delaware 158 62 15 15 12 10 0 0 0 0
Maine 19 19 19 19 19 19 19 19 17 0
Maryland 516 411 127 91 48 24 21 4 0 0
Massachusetts 32 32 32 32 32 32 32 32 29 0
New Hampshire 14 14 14 14 14 14 14 14 13 2
New Jersey 114 80 21 5 0 0 0 0 0 0
New York 979 979 979 979 979 979 979 979 975 912
Pennsylvania 1,464 1,240 474 239 213 212 212 121 92 92
Rhode Island 2 2 2 2 2 2 2 2 2 0
Vermont 91 91 91 91 91 91 91 91 79 16
West Virginia 88 80 77 70 15 2 2 0 0 0
Midwest Region 39,121 39,015 38,432 37,868 34,474 34,150 29,589 21,925 18,731 11,600
Illinois 10,896 10,892 10,889 10,889 10,049 10,002 7,648 5,859 5,588 1,531
Indiana 5,949 5,944 5,944 5,944 5,944 5,917 4,200 956 836 0
Iowa 9,106 9,106 9,014 8,799 8,387 8,355 8,117 8,032 7,157 6,281
Michigan 2,470 2,470 2,470 2,470 2,470 2,470 2,470 1,955 1,835 887
Minnesota 2,704 2,665 2,239 2,097 2,095 2,088 1,992 1,919 1,918 1,917
Missouri 2,736 2,711 2,670 2,621 1,013 818 715 415 287 162
Ohio 3,138 3,113 3,093 2,935 2,412 2,410 2,405 1,430 62 7
Wisconsin 2,123 2,114 2,114 2,114 2,105 2,092 2,042 1,360 1,048 816
Northern Plains 13,371 12,135 10,336 7,966 6,804 4,531 3,501 3,050 2,881 2,674
Colorado 506 348 270 265 166 77 57 11 5 1
Kansas 4,230 3,711 3,620 2,403 1,908 1,382 1,104 929 798 682
Montana 6 6 5 5 4 3 3 3 3 3
Nebraska 7,480 6,933 5,487 4,387 3,844 2,188 1,470 1,263 1,234 1,151
North Dakota 29 29 28 25 7 7 7 6 5 5
South Dakota 1,101 1,098 921 882 875 874 860 838 837 833
Wyoming 18 10 6 1 1 0 0 0 0 0
South Central 6,219 4,226 3,609 3,066 2,610 2,364 2,199 1,311 820 135
Arkansas 320 298 295 281 251 234 181 162 80 49
Louisiana 478 449 402 370 330 272 253 164 73 0
Oklahoma 277 149 127 126 108 74 67 11 1 0
Texas 5,144 3,331 2,785 2,289 1,922 1,784 1,698 975 665 86
Southeast Region 5,926 4,261 3,946 3,533 3,002 2,661 1,580 688 599 275
Alabama 306 277 250 189 121 111 83 52 37 16
Florida 114 44 31 15 15 8 4 3 3 0
Georgia 685 313 217 165 133 102 28 11 6 0
Kentucky 1,562 1,543 1,518 1,405 1,305 1,149 721 139 124 54
Mississippi 216 213 212 191 166 161 133 85 76 62
North Carolina 1,265 715 610 556 410 316 104 3 0 0
South Carolina 586 221 216 202 178 175 170 82 78 0
Tennessee 798 766 738 689 639 606 331 309 277 144
Virginia 393 170 154 122 35 33 6 4 0 0
West Region 150 33 20 16 15 12 8 5 5 4
Arizona 3 0 0 0 0 0 0 0 0 0
California 22 9 8 8 7 5 4 1 1 0
Hawaii 0 0 0 0 0 0 0 0 0 0
Idaho 25 1 0 0 0 0 0 0 0 0
Nevada 0 0 0 0 0 0 0 0 0 0
New Mexico 50 10 6 5 4 4 4 4 4 4
Oregon 13 4 2 2 2 1 0 0 0 0
Utah 8 4 2 0 0 0 0 0 0 0
Washington 29 5 2 2 1 1 0 0 0 0
US Total 68,309 62,728 58,241 54,053 48,377 45,150 38,296 28,289 24,283 15,710

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