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APPENDIX: Prospects for Reducing Environmental Risk at the Watershed Level

Maps

Table 1. Environmental Risk in Leachate for Humans and Percent Risk Reduction for Alternative Management Scenarios.
Hydrologic Cataloging Unit TEUs for 1991-92 Baseline Percent Reduction in TEUs for alternatives without insecticide substitution Percent Reduction in TEUs for alternatives with insecticide substitution Percent Reduction in TEUs for mulch tillage substituted for conventional tillage Percent Reduction in TEUs for alternatives with insecticide substitution and mulch tillage
Eastern Iowa Basins  
7080101 924,858 48 48 0 50
7080102 16,807 100 100 0 100
7080103 368,057 61 61 0 61
7080104 799,869 54 54 0 54
7080105 151,530 70 70 11 70
7080106 84,676 63 63 0 63
7080107 415,764 50 50 1 50
7080201 18,028 100 100 0 100
7080202 56,354 70 70 0 70
7080203 19,861 10 10 5 100
7080204 117,132 23 23 0 23
7080205 283,157 61 61 1 61
7080206 167,602 50 50 10 50
7080207 122,746 32 32 4 32
7080208 293,112 51 51 10 55
7080209 398,107 50 50 0 52
Lower Illinois Basins  
7130001 514,528 65 65 3 67
7130002 24,141 50 50 0 50
7130003 394,458 53 53 2 54
7130004 423,380 57 57 0 57
7130005 829,784 48 48 0 48
7130006 95,278 82 82 0 82
7130007 115,735 66 66 0 66
7130008 740,620 52 52 7 56
7130009 42,210 100 100 0 100
7130010 342,000 52 52 0 52
7130011 358,316 49 49 10 53
7130012 110,677 38 38 -11 38
White River Basin (Indiana)  
5120201 490,653 45 45 3 46
5120202 895,461 49 49 5 51
5120203 446,160 44 44 4 48
5120204 424,164 47 47 9 54
5120205 295,264 40 40 11 46
5120206 362,419 48 48 2 49
5120207 407,949 52 52 6 55
5120208 706,037 52 52 10 56

 

Table 2. Environmental Risk in Runoff for Humans and Percent Risk Reduction for Alternative Management Scenarios.
 Hydrologic Cataloging Unit TEUs for 1991-92 Baseline Percent Reduction in TEUs for alternatives without insecticide substitution Percent Reduction in TEUs for alternatives with insecticide substitution Percent Reduction in TEUs for mulch tillage substituted for conventional tillage Percent Reduction in TEUs for alternatives with insecticide substitution and mulch tillage
Eastern Iowa Basins  
7080101 1,377,687 34 41 2 42
7080102 2,489,887 44 49 11 53
7080103 2,101,292 42 49 6 52
7080104 4,051,969 45 46 0 46
7080105 4,645,047 44 45 22 56
7080106 884,997 42 47 7 52
7080107 4,262,434 46 48 4 50
7080201 1,838,887 41 46 13 52
7080202 1,830,321 43 47 15 54
7080203 1,299,595 43 49 13 55
7080204 1,101,507 37 40 16 46
7080205 4,650,625 42 44 8 49
7080206 1,635,772 43 46 15 53
7080207 2,740,046 38 43 12 48
7080208 1,457,362 39 43 16 51
7080209 3,195,832 44 46 6 48
Lower Illinois Basins  
7130001 2,581,573 42 50 5 53
7130002 2,695,650 44 44 3 46
7130003 2,685,683 48 51 18 60
7130004 2,694,747 41 42 4 44
7130005 4,316,634 44 48 8 51
7130006 9,129,858 49 50 0 50
7130007 3,506,046 48 49 2 50
7130008 1,181,284 43 43 3 44
7130009 6,293,859 46 47 1 47
7130010 2,430,516 46 46 2 48
7130011 3,433,265 46 49 27 61
7130012 4,538,921 49 49 9 54
White River Basin (Indiana)  
5120201 2,406,529 42 43 19 51
5120202 814,180 44 44 11 49
5120203 895,950 40 48 17 53
5120204 1,559,779 40 44 23 53
5120205 979,912 38 41 23 52
5120206 1,112,460 40 48 20 56
5120207 1,043,250 40 51 21 61
5120208 407,065 30 33 12 37

 

Table 3. Environmental Risk in Leachate for Fish and Percent Risk Reduction for Alternative Management Scenarios.
Hydrologic Cataloging Unit TEUs for 1991-92 Baseline Percent Reduction in TEUs for alternatives without insecticide substitution Percent Reduction in TEUs for alternatives with insecticide substitution Percent Reduction in TEUs for mulch tillage substituted for conventional tillage Percent Reduction in TEUs for alternatives with insecticide substitution and mulch tillage
Eastern Iowa Basins  
7080101 0 0 0 0 0
7080102 0 0 0 0 0
7080103 0 0 0 0 0
7080104 0 0 0 0 0
7080105 0 0 0 0 0
7080106 0 0 0 0 0
7080107 0 0 0 0 0
7080201 34,889 0 100 0 100
7080202 0 0 0 0 0
7080203 0 0 0 0 0
7080204 0 0 0 0 0
7080205 0 0 0 0 0
7080206 0 0 0 0 0
7080207 0 0 0 0 0
7080208 0 0 0 0 0
7080209 0 0 0 0 0
Lower Illinois Basins  
7130001 18,005 0 100 17 100
7130002 0 0 0 0 0
7130003 0 0 0 0 0
7130004 0 0 0 0 0
7130005 0 0 0 0 0
7130006 96,507 50 100 0 100
7130007 0 0 0 0 0
7130008 0 0 0 0 0
7130009 0 0 0 0 0
7130010 0 0 0 0 0
7130011 0 0 0 0 0
7130012 0 0 0 0 0
White River Basin (Indiana)  
5120201 7,260 0 100 0 100
5120202 78,067 50 100 18 100
5120203 0 0 0 0 0
5120204 43,252 0 100 26 100
5120205 21,481 50 100 46 100
5120206 45,028 0 100 0 100
5120207 0 0 0 0 0
5120208 120,607 50 100 51 100

 

Table 4. Environmental Risk in Runoff for Fish and Percent Risk Reduction for Alternative Management Scenarios.
 Hydrologic Cataloging Unit  TEUs for 1991-92 Baseline Percent Reduction in TEUs for alternatives without insecticide substitution Percent Reduction in TEUs for alternatives with insecticide substitution Percent Reduction in TEUs for mulch tillage substituted for conventional tillage Percent Reduction in TEUs for alternatives with insecticide substitution and mulch tillage
Eastern Iowa Basins  
7080101 9,936,536 23 94 1 94
7080102 2,117,744 23 91 3 93
7080103 9,103,133 33 99 1 99
7080104 13,865,665 5 81 0 81
7080105 4,645,000 5 52 3 53
7080106 3,305,061 3 97 0 97
7080107 9,213,967 26 99 2 99
7080201 6,201,835 2 68 1 69
7080202 5,039,856 9 95 8 96
7080203 3,462,918 27 97 3 98
7080204 2,202,276 14 96 0 96
7080205 12,562,684 11 80 1 80
7080206 8,079,007 12 99 0 99
7080207 3,778,584 7 93 7 93
7080208 7,69,2805 2 67 8 73
7080209 12,263,119 14 52 1 52
Lower Illinois Basins  
7130001 9,966,329 20 99 0 99
7130002 151,2924 52 87 1 88
7130003 5,266,150 24 65 2 65
7130004 5,679,732 8 64 0 64
7130005 13,784,280 5 99 1 99
7130006 1,895,029 16 92 0 92
7130007 2,468,988 41 89 0 90
7130008 178,872 45 52 3 52
7130009 1,272,737 27 74 2 74
7130010 3,685,022 35 97 0 97
7130011 9,806,535 6 98 8 98
7130012 2,795,443 18 95 1 95
White River Basin (Indiana)  
5120201 2,744,975 31 91 5 92
5120202 3,011,269 13 97 2 97
5120203 4,915,505 14 97 11 97
5120204 3,128,636 19 92 17 94
5120205 3,641,002 7 99 13 99
5120206 1,779,163 11 94 16 95
5120207 1,971,777 4 98 6 98
5120208 2,425,773 14 99 2 100

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