Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 2.584 2.434 1.89 1.196 0.8527 0.2147 1962 0.5893 0.5338 0.3741 0.2029 0.1581 0.04121 1963 2.408 2.228 1.643 0.9571 0.6758 0.1693 1964 0.6673 0.5971 0.4362 0.2285 0.1769 0.04522 1965 0.6394 0.5824 0.3936 0.2105 0.1628 0.04175 1966 0.3471 0.3226 0.2486 0.1494 0.1135 0.02892 1967 6.455 5.769 3.446 1.917 1.373 0.3489 1968 1.371 1.255 0.9831 0.5281 0.3943 0.101 1969 2.766 2.495 1.7 1.357 1.013 0.2598 1970 2.719 2.528 1.792 0.8853 0.6355 0.1629 1971 1.411 1.323 1 0.6141 0.4402 0.1119 1972 2.126 1.978 1.488 0.9363 0.6859 0.1749 1973 4.52 4.063 2.646 1.529 1.114 0.2812 1974 1.292 1.173 0.8459 0.5293 0.3932 0.1011 1975 1.448 1.317 0.9899 0.521 0.3791 0.09792 1976 0.3197 0.2992 0.249 0.2083 0.1699 0.04459 162 1977 3.223 2.894 1.917 1.283 0.9308 0.2343 1978 9.043 8.274 5.356 2.57 1.794 0.4566 1979 1.346 1.256 0.9548 0.6977 0.5114 0.1307 1980 4.345 3.938 2.543 1.191 0.8235 0.207 1981 0.9159 0.8081 0.6045 0.4468 0.3247 0.08245 1982 2.453 2.264 1.71 1.035 0.7317 0.1838 1983 1.409 1.315 1.018 0.6303 0.445 0.1115 1984 0.3173 0.2873 0.2281 0.1495 0.115 0.02951 1985 3.668 3.441 2.353 1.505 1.147 0.2909 1986 0.7847 0.7425 0.5373 0.3633 0.2789 0.07195 1987 0.7242 0.6456 0.4254 0.3655 0.2785 0.07115 1988 1.689 1.54 1.003 0.48 0.3519 0.09698 1989 0.6654 0.616 0.4579 0.3062 0.2282 0.05841 1990 0.3232 0.3061 0.2525 0.2105 0.1569 0.03982 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 9.043 8.274 5.356 2.57 1.794 0.4566 0.0645161290322581 6.455 5.769 3.446 1.917 1.373 0.3489 0.0967741935483871 4.52 4.063 2.646 1.529 1.147 0.2909 0.129032258064516 4.345 3.938 2.543 1.505 1.114 0.2812 0.161290322580645 3.668 3.441 2.353 1.357 1.013 0.2598 0.193548387096774 3.223 2.894 1.917 1.283 0.9308 0.2343 0.225806451612903 2.766 2.528 1.89 1.196 0.8527 0.2147 0.258064516129032 2.719 2.495 1.792 1.191 0.8235 0.207 0.290322580645161 2.584 2.434 1.71 1.035 0.7317 0.1838 0.32258064516129 2.453 2.264 1.7 0.9571 0.6859 0.1749 0.354838709677419 2.408 2.228 1.643 0.9363 0.6758 0.1693 0.387096774193548 2.126 1.978 1.488 0.8853 0.6355 0.1629 0.419354838709677 1.689 1.54 1.018 0.6977 0.5114 0.1307 0.451612903225806 1.448 1.323 1.003 0.6303 0.445 0.1119 0.483870967741936 1.411 1.317 1 0.6141 0.4402 0.1115 0.516129032258065 1.409 1.315 0.9899 0.5293 0.3943 0.1011 0.548387096774194 1.371 1.256 0.9831 0.5281 0.3932 0.101 0.580645161290323 1.346 1.255 0.9548 0.521 0.3791 0.09792 0.612903225806452 1.292 1.173 0.8459 0.48 0.3519 0.09698 0.645161290322581 0.9159 0.8081 0.6045 0.4468 0.3247 0.08245 0.67741935483871 0.7847 0.7425 0.5373 0.3655 0.2789 0.07195 0.709677419354839 0.7242 0.6456 0.4579 0.3633 0.2785 0.07115 0.741935483870968 0.6673 0.616 0.4362 0.3062 0.2282 0.05841 0.774193548387097 0.6654 0.5971 0.4254 0.2285 0.1769 0.04522 0.806451612903226 0.6394 0.5824 0.3936 0.2105 0.1699 0.04459 0.838709677419355 0.5893 0.5338 0.3741 0.2105 0.1628 0.04175 0.870967741935484 0.3471 0.3226 0.2525 0.2083 0.1581 0.04121 0.903225806451613 0.3232 0.3061 0.249 0.2029 0.1569 0.03982 0.935483870967742 0.3197 0.2992 0.2486 0.1495 0.115 0.02951 0.967741935483871 0.3173 0.2873 0.2281 0.1494 0.1135 0.02892 0.1 4.5025 4.0505 2.6357 1.5266 1.1437 0.28993 Average of yearly averages: 0.143012666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: 163 Output File: dicKAsorghumground Metfile: w13996. dvf PRZM scenario: KSsorghumC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 0.28 kg/ ha Application Efficiency: APPEFF .99 fraction Spray Drift DRFT .01 fraction of application rate applied to pond Application Date Date 1 05 dd/ mm or dd/ mmm or dd mm or dd mmm Interval 1 interval 30 days Set to 0 or delete line for single app. Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

stored as dicKAsorghumaerial. out Chemical: dicamba PRZM environment: KSsorghumC. txt modified Satday, 12 October 2002 at 15: 57: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w13996. dvf modified Wedday, 3 July 2002 at 09: 04: 44 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 2.972 2.812 2.177 1.515 1.098 0.2767 1962 1.136 1.029 0.7555 0.4936 0.3789 0.09716 1963 2.813 2.603 1.919 1.255 0.8944 0.2243 1964 1.129 1.031 0.8207 0.5459 0.4101 0.1036 1965 1.184 1.067 0.7904 0.5266 0.3918 0.09964 1966 0.9323 0.8459 0.6771 0.4936 0.3603 0.091 1967 6.948 6.21 3.701 2.138 1.55 0.3935 1968 2.105 1.927 1.418 0.8675 0.6524 0.1656 1969 3.077 2.776 1.888 1.621 1.233 0.3155 1970 3.255 3.073 2.15 1.115 0.8541 0.218 1971 1.763 1.651 1.247 0.936 0.6797 0.1726 1972 2.512 2.337 1.757 1.246 0.9269 0.2361 1973 4.988 4.48 2.918 1.791 1.326 0.3343 164 1974 1.737 1.577 1.2 0.8325 0.6379 0.1628 1975 1.866 1.692 1.345 0.7893 0.6151 0.1576 1976 1.059 0.9728 0.6611 0.5766 0.4425 0.1134 1977 3.547 3.185 2.109 1.484 1.09 0.2742 1978 9.404 8.597 5.564 2.669 1.958 0.4994 1979 1.838 1.716 1.304 1.033 0.7569 0.1926 1980 4.909 4.449 2.874 1.399 1.035 0.2597 1981 1.51 1.333 1 0.7598 0.5525 0.1396 1982 2.813 2.613 1.96 1.343 0.9701 0.2442 1983 1.918 1.79 1.377 0.9709 0.6928 0.1738 1984 1.018 0.9152 0.629 0.4771 0.3486 0.08816 1985 4.142 3.873 2.645 1.795 1.358 0.3441 1986 1.215 1.148 0.8479 0.6712 0.5046 0.1287 1987 1.065 0.9906 0.801 0.6618 0.4962 0.1261 1988 1.747 1.59 1.035 0.6395 0.5591 0.1526 1989 1.14 1.044 0.7544 0.6541 0.4858 0.1235 1990 1.068 0.9687 0.6656 0.5558 0.4052 0.1023 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 9.404 8.597 5.564 2.669 1.958 0.4994 0.0645161290322581 6.948 6.21 3.701 2.138 1.55 0.3935 0.0967741935483871 4.988 4.48 2.918 1.795 1.358 0.3441 0.129032258064516 4.909 4.449 2.874 1.791 1.326 0.3343 0.161290322580645 4.142 3.873 2.645 1.621 1.233 0.3155 0.193548387096774 3.547 3.185 2.177 1.515 1.098 0.2767 0.225806451612903 3.255 3.073 2.15 1.484 1.09 0.2742 0.258064516129032 3.077 2.812 2.109 1.399 1.035 0.2597 0.290322580645161 2.972 2.776 1.96 1.343 0.9701 0.2442 0.32258064516129 2.813 2.613 1.919 1.255 0.9269 0.2361 0.354838709677419 2.813 2.603 1.888 1.246 0.8944 0.2243 0.387096774193548 2.512 2.337 1.757 1.115 0.8541 0.218 0.419354838709677 2.105 1.927 1.418 1.033 0.7569 0.1926 0.451612903225806 1.918 1.79 1.377 0.9709 0.6928 0.1738 0.483870967741936 1.866 1.716 1.345 0.936 0.6797 0.1726 0.516129032258065 1.838 1.692 1.304 0.8675 0.6524 0.1656 0.548387096774194 1.763 1.651 1.247 0.8325 0.6379 0.1628 0.580645161290323 1.747 1.59 1.2 0.7893 0.6151 0.1576 0.612903225806452 1.737 1.577 1.035 0.7598 0.5591 0.1526 0.645161290322581 1.51 1.333 1 0.6712 0.5525 0.1396 0.67741935483871 1.215 1.148 0.8479 0.6618 0.5046 0.1287 0.709677419354839 1.184 1.067 0.8207 0.6541 0.4962 0.1261 0.741935483870968 1.14 1.044 0.801 0.6395 0.4858 0.1235 0.774193548387097 1.136 1.031 0.7904 0.5766 0.4425 0.1134 0.806451612903226 1.129 1.029 0.7555 0.5558 0.4101 0.1036 0.838709677419355 1.068 0.9906 0.7544 0.5459 0.4052 0.1023 0.870967741935484 1.065 0.9728 0.6771 0.5266 0.3918 0.09964 0.903225806451613 1.059 0.9687 0.6656 0.4936 0.3789 0.09716 0.935483870967742 1.018 0.9152 0.6611 0.4936 0.3603 0.091 0.967741935483871 0.9323 0.8459 0.629 0.4771 0.3486 0.08816 0.1 4.9801 4.4769 2.9136 1.7946 1.3548 0.34312 Average of yearly averages: 0.200358666666667 165 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicKAsorghumaerial Metfile: w13996. dvf PRZM scenario: KSsorghumC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 0.28 kg/ ha Application Efficiency: APPEFF .95 fraction Spray Drift DRFT .05 fraction of application rate applied to pond Application Date Date 1 05 dd/ mm or dd/ mmm or dd mm or dd mmm Interval 1 interval 30 days Set to 0 or delete line for single app. Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

Dicamba Texas Sorghum stored as dicTXsorghumground. out Chemical: dicamba PRZM environment: TXsorghumC. txt modified Satday, 12 October 2002 at 17: 29: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w13958. dvf modified Wedday, 3 July 2002 at 09: 06: 24 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 0.9136 0.8137 0.5129 0.4192 0.301 0.07516 1962 3.019 2.822 1.74 0.7852 0.5464 0.1365 1963 0.198 0.1725 0.1159 0.09675 0.07546 0.01918 1964 1.486 1.317 0.7418 0.4765 0.3757 0.09428 1965 1.881 1.65 1.008 0.5062 0.3497 0.09286 1966 2.635 2.443 1.762 0.9606 0.6693 0.1692 166 1967 0.4373 0.3933 0.2657 0.1675 0.14 0.03877 1968 3.676 3.357 2.181 1.058 0.7283 0.1805 1969 0.9805 0.8597 0.5247 0.3413 0.2577 0.06596 1970 1.429 1.269 0.8364 0.4268 0.2989 0.07604 1971 1.014 0.8825 0.5191 0.2472 0.1879 0.04947 1972 19.46 17.16 10.64 4.999 3.422 0.8473 1973 0.3064 0.2771 0.1966 0.1712 0.1282 0.03294 1974 5.277 4.619 2.898 1.357 0.9224 0.2335 1975 1.672 1.454 0.8711 0.4743 0.3581 0.09086 1976 2.637 2.385 1.694 0.9107 0.6553 0.164 1977 0.1963 0.1741 0.1088 0.08524 0.06167 0.0189 1978 8.632 7.608 4.755 2.33 1.587 0.3936 1979 8.808 7.805 4.941 2.395 1.65 0.411 1980 0.8554 0.7818 0.5742 0.3182 0.2169 0.05614 1981 2.359 2.071 1.269 0.7952 0.5471 0.1358 1982 2.12 1.875 1.254 0.7505 0.5308 0.1322 1983 2.711 2.428 1.59 1.083 0.7589 0.1896 1984 0.365 0.3271 0.2068 0.1204 0.08884 0.02262 1985 1.589 1.378 0.8439 0.3926 0.2857 0.07193 1986 18.84 16.64 10.67 5.065 3.439 0.8516 1987 1.254 1.15 0.7361 0.5637 0.3972 0.09945 1988 1.601 1.413 0.8676 0.4545 0.3296 0.08239 1989 4.558 3.987 2.508 1.362 0.9519 0.2371 1990 8.624 7.62 4.77 2.593 1.786 0.4443 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 19.46 17.16 10.67 5.065 3.439 0.8516 0.0645161290322581 18.84 16.64 10.64 4.999 3.422 0.8473 0.0967741935483871 8.808 7.805 4.941 2.593 1.786 0.4443 0.129032258064516 8.632 7.62 4.77 2.395 1.65 0.411 0.161290322580645 8.624 7.608 4.755 2.33 1.587 0.3936 0.193548387096774 5.277 4.619 2.898 1.362 0.9519 0.2371 0.225806451612903 4.558 3.987 2.508 1.357 0.9224 0.2335 0.258064516129032 3.676 3.357 2.181 1.083 0.7589 0.1896 0.290322580645161 3.019 2.822 1.762 1.058 0.7283 0.1805 0.32258064516129 2.711 2.443 1.74 0.9606 0.6693 0.1692 0.354838709677419 2.637 2.428 1.694 0.9107 0.6553 0.164 0.387096774193548 2.635 2.385 1.59 0.7952 0.5471 0.1365 0.419354838709677 2.359 2.071 1.269 0.7852 0.5464 0.1358 0.451612903225806 2.12 1.875 1.254 0.7505 0.5308 0.1322 0.483870967741936 1.881 1.65 1.008 0.5637 0.3972 0.09945 0.516129032258065 1.672 1.454 0.8711 0.5062 0.3757 0.09428 0.548387096774194 1.601 1.413 0.8676 0.4765 0.3581 0.09286 0.580645161290323 1.589 1.378 0.8439 0.4743 0.3497 0.09086 0.612903225806452 1.486 1.317 0.8364 0.4545 0.3296 0.08239 0.645161290322581 1.429 1.269 0.7418 0.4268 0.301 0.07604 0.67741935483871 1.254 1.15 0.7361 0.4192 0.2989 0.07516 0.709677419354839 1.014 0.8825 0.5742 0.3926 0.2857 0.07193 0.741935483870968 0.9805 0.8597 0.5247 0.3413 0.2577 0.06596 0.774193548387097 0.9136 0.8137 0.5191 0.3182 0.2169 0.05614 0.806451612903226 0.8554 0.7818 0.5129 0.2472 0.1879 0.04947 0.838709677419355 0.4373 0.3933 0.2657 0.1712 0.14 0.03877 0.870967741935484 0.365 0.3271 0.2068 0.1675 0.1282 0.03294 167 0.903225806451613 0.3064 0.2771 0.1966 0.1204 0.08884 0.02262 0.935483870967742 0.198 0.1741 0.1159 0.09675 0.07546 0.01918 0.967741935483871 0.1963 0.1725 0.1088 0.08524 0.06167 0.0189 0.1 8.7904 7.7865 4.9239 2.5732 1.7724 0.44097 Average of yearly averages: 0.183771666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicTXsorghumground Metfile: w13958. dvf PRZM scenario: TXsorghumC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 0.28 kg/ ha Application Efficiency: APPEFF .99 fraction Spray Drift DRFT .01 fraction of application rate applied to pond Application Date Date 1 05 dd/ mm or dd/ mmm or dd mm or dd mmm Interval 1 interval 30 days Set to 0 or delete line for single app. Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

stored as dicTXsorghumaerial. out Chemical: dicamba PRZM environment: TXsorghumC. txt modified Satday, 12 October 2002 at 17: 29: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w13958. dvf modified Wedday, 3 July 2002 at 09: 06: 24 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 1.202 1.082 0.8142 0.6632 0.4721 0.1176 1962 3.487 3.258 2.004 0.9827 0.718 0.1791 1963 0.8471 0.7473 0.4657 0.3708 0.2684 0.06714 168 1964 1.602 1.427 0.8188 0.7199 0.5426 0.1356 1965 2.113 1.853 1.138 0.749 0.5238 0.1361 1966 3.094 2.856 2.036 1.222 0.8569 0.2159 1967 0.9853 0.886 0.5929 0.4407 0.3314 0.08628 1968 4.025 3.66 2.367 1.287 0.8948 0.222 1969 1.503 1.318 0.8677 0.6091 0.4512 0.1141 1970 1.613 1.433 1.055 0.6876 0.4859 0.1227 1971 1.126 0.9799 0.5766 0.4502 0.3769 0.09642 1972 19.24 16.97 10.52 5.058 3.469 0.8592 1973 0.8929 0.7976 0.573 0.4653 0.3382 0.08532 1974 5.63 4.928 3.082 1.563 1.072 0.2708 1975 1.95 1.696 1.034 0.6985 0.53 0.1337 1976 2.946 2.665 1.909 1.156 0.8399 0.21 1977 0.8694 0.7713 0.4697 0.3708 0.2638 0.06911 1978 8.811 7.766 4.852 2.492 1.705 0.423 1979 9.018 7.991 5.058 2.574 1.779 0.443 1980 1.196 1.105 0.8769 0.5716 0.394 0.09993 1981 2.83 2.484 1.521 0.9904 0.6809 0.169 1982 2.448 2.166 1.433 0.9772 0.6982 0.1739 1983 2.942 2.635 1.726 1.302 0.936 0.2338 1984 0.8251 0.7264 0.5482 0.3879 0.2775 0.06945 1985 1.967 1.706 1.084 0.6284 0.4692 0.1176 1986 18.65 16.47 10.55 5.127 3.489 0.8642 1987 1.672 1.545 0.9976 0.7951 0.5596 0.1399 1988 2.14 1.886 1.189 0.7149 0.5227 0.1304 1989 4.804 4.202 2.634 1.547 1.094 0.2725 1990 8.772 7.75 4.852 2.731 1.889 0.4698 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 19.24 16.97 10.55 5.127 3.489 0.8642 0.0645161290322581 18.65 16.47 10.52 5.058 3.469 0.8592 0.0967741935483871 9.018 7.991 5.058 2.731 1.889 0.4698 0.129032258064516 8.811 7.766 4.852 2.574 1.779 0.443 0.161290322580645 8.772 7.75 4.852 2.492 1.705 0.423 0.193548387096774 5.63 4.928 3.082 1.563 1.094 0.2725 0.225806451612903 4.804 4.202 2.634 1.547 1.072 0.2708 0.258064516129032 4.025 3.66 2.367 1.302 0.936 0.2338 0.290322580645161 3.487 3.258 2.036 1.287 0.8948 0.222 0.32258064516129 3.094 2.856 2.004 1.222 0.8569 0.2159 0.354838709677419 2.946 2.665 1.909 1.156 0.8399 0.21 0.387096774193548 2.942 2.635 1.726 0.9904 0.718 0.1791 0.419354838709677 2.83 2.484 1.521 0.9827 0.6982 0.1739 0.451612903225806 2.448 2.166 1.433 0.9772 0.6809 0.169 0.483870967741936 2.14 1.886 1.189 0.7951 0.5596 0.1399 0.516129032258065 2.113 1.853 1.138 0.749 0.5426 0.1361 0.548387096774194 1.967 1.706 1.084 0.7199 0.53 0.1356 0.580645161290323 1.95 1.696 1.055 0.7149 0.5238 0.1337 0.612903225806452 1.672 1.545 1.034 0.6985 0.5227 0.1304 0.645161290322581 1.613 1.433 0.9976 0.6876 0.4859 0.1227 0.67741935483871 1.602 1.427 0.8769 0.6632 0.4721 0.1176 0.709677419354839 1.503 1.318 0.8677 0.6284 0.4692 0.1176 0.741935483870968 1.202 1.105 0.8188 0.6091 0.4512 0.1141 0.774193548387097 1.196 1.082 0.8142 0.5716 0.394 0.09993 169 0.806451612903226 1.126 0.9799 0.5929 0.4653 0.3769 0.09642 0.838709677419355 0.9853 0.886 0.5766 0.4502 0.3382 0.08628 0.870967741935484 0.8929 0.7976 0.573 0.4407 0.3314 0.08532 0.903225806451613 0.8694 0.7713 0.5482 0.3879 0.2775 0.06945 0.935483870967742 0.8471 0.7473 0.4697 0.3708 0.2684 0.06911 0.967741935483871 0.8251 0.7264 0.4657 0.3708 0.2638 0.06714 0.1 8.9973 7.9685 5.0374 2.7153 1.878 0.46712 Average of yearly averages: 0.224251666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicTXsorghumaerial Metfile: w13958. dvf PRZM scenario: TXsorghumC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 0.28 kg/ ha Application Efficiency: APPEFF .95 fraction Spray Drift DRFT .05 fraction of application rate applied to pond Application Date Date 1 05 dd/ mm or dd/ mmm or dd mm or dd mmm Interval 1 interval 30 days Set to 0 or delete line for single app. Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run) 170 Dicamba Michigan Asparagus stored as dicMIAaspground. out Chemical: dicamba PRZM environment: MIAsparagusC. txt modified Thuday, 9 June 2005 at 07: 37: 14 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w14848. dvf modified Wedday, 3 July 2002 at 09: 04: 42 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 0.25 0.2422 0.2117 0.1439 0.1062 0.02723 1962 0.2502 0.2409 0.2045 0.1243 0.08936 0.02284 1963 0.2501 0.2402 0.2027 0.1327 0.09654 0.02469 1964 0.2501 0.2397 0.2081 0.1308 0.09366 0.02371 1965 0.2501 0.2411 0.2056 0.1261 0.09117 0.02334 1966 0.8472 0.8189 0.7016 0.4735 0.3513 0.09016 1967 0.2505 0.2405 0.2105 0.1416 0.1034 0.02677 1968 0.2501 0.2397 0.2008 0.1319 0.09575 0.02443 1969 0.2501 0.2398 0.2009 0.1284 0.0942 0.02413 1970 0.9421 0.9116 0.7595 0.4765 0.3487 0.08916 1971 0.2505 0.2415 0.2067 0.1356 0.0977 0.02526 1972 0.2501 0.2416 0.2082 0.1342 0.09895 0.02545 1973 0.8182 0.7835 0.6472 0.423 0.3101 0.07887 1974 0.2504 0.2395 0.1993 0.1295 0.09487 0.02434 1975 0.8063 0.7798 0.6658 0.4145 0.2999 0.07634 1976 0.6719 0.641 0.5294 0.3448 0.2532 0.0647 1977 0.2504 0.238 0.1923 0.1102 0.0785 0.02004 1978 0.2501 0.24 0.2019 0.1304 0.09465 0.02412 1979 0.2501 0.2411 0.2064 0.1333 0.09659 0.02461 1980 0.2501 0.2403 0.2027 0.1495 0.1213 0.03142 1981 0.2502 0.2389 0.2151 0.1631 0.1202 0.03088 1982 0.3328 0.307 0.2258 0.1865 0.152 0.04018 1983 0.3604 0.3419 0.2761 0.2104 0.1549 0.03928 1984 0.4346 0.418 0.3493 0.2417 0.1763 0.04482 1985 0.2502 0.2379 0.1932 0.1169 0.08449 0.02158 1986 0.2501 0.2394 0.1995 0.1267 0.09228 0.02355 1987 0.2501 0.2398 0.2004 0.1209 0.08587 0.0217 1988 0.2501 0.2406 0.2038 0.1265 0.09035 0.0229 1989 0.2501 0.2409 0.2054 0.1364 0.1006 0.02577 1990 0.2501 0.2404 0.2034 0.1347 0.09844 0.02524 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 0.9421 0.9116 0.7595 0.4765 0.3513 0.09016 0.0645161290322581 0.8472 0.8189 0.7016 0.4735 0.3487 0.08916 0.0967741935483871 0.8182 0.7835 0.6658 0.423 0.3101 0.07887 0.129032258064516 0.8063 0.7798 0.6472 0.4145 0.2999 0.07634 0.161290322580645 0.6719 0.641 0.5294 0.3448 0.2532 0.0647 0.193548387096774 0.4346 0.418 0.3493 0.2417 0.1763 0.04482 0.225806451612903 0.3604 0.3419 0.2761 0.2104 0.1549 0.04018 0.258064516129032 0.3328 0.307 0.2258 0.1865 0.152 0.03928 0.290322580645161 0.2505 0.2422 0.2151 0.1631 0.1213 0.03142 0.32258064516129 0.2505 0.2416 0.2117 0.1495 0.1202 0.03088 171 0.354838709677419 0.2504 0.2415 0.2105 0.1439 0.1062 0.02723 0.387096774193548 0.2504 0.2411 0.2082 0.1416 0.1034 0.02677 0.419354838709677 0.2502 0.2411 0.2081 0.1364 0.1006 0.02577 0.451612903225806 0.2502 0.2409 0.2067 0.1356 0.09895 0.02545 0.483870967741936 0.2502 0.2409 0.2064 0.1347 0.09844 0.02526 0.516129032258065 0.2501 0.2406 0.2056 0.1342 0.0977 0.02524 0.548387096774194 0.2501 0.2405 0.2054 0.1333 0.09659 0.02469 0.580645161290323 0.2501 0.2404 0.2045 0.1327 0.09654 0.02461 0.612903225806452 0.2501 0.2403 0.2038 0.1319 0.09575 0.02443 0.645161290322581 0.2501 0.2402 0.2034 0.1308 0.09487 0.02434 0.67741935483871 0.2501 0.24 0.2027 0.1304 0.09465 0.02413 0.709677419354839 0.2501 0.2398 0.2027 0.1295 0.0942 0.02412 0.741935483870968 0.2501 0.2398 0.2019 0.1284 0.09366 0.02371 0.774193548387097 0.2501 0.2397 0.2009 0.1267 0.09228 0.02355 0.806451612903226 0.2501 0.2397 0.2008 0.1265 0.09117 0.02334 0.838709677419355 0.2501 0.2395 0.2004 0.1261 0.09035 0.0229 0.870967741935484 0.2501 0.2394 0.1995 0.1243 0.08936 0.02284 0.903225806451613 0.2501 0.2389 0.1993 0.1209 0.08587 0.0217 0.935483870967742 0.2501 0.238 0.1932 0.1169 0.08449 0.02158 0.967741935483871 0.25 0.2379 0.1923 0.1102 0.0785 0.02004 0.1 0.81701 0.78313 0.66394 0.42215 0.30908 0.078617 Average of yearly averages: 0.0355836666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicMIAaspground Metfile: w14848. dvf PRZM scenario: MIAsparagusC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 0.56 kg/ ha Application Efficiency: APPEFF .99 fraction Spray Drift DRFT .01 fraction of application rate applied to pond Application Date Date 15 04 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT 172 PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

stored as dicMIAaspaerial. out Chemical: dicamba PRZM environment: MIAsparagusC. txt modified Thuday, 9 June 2005 at 07: 37: 14 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w14848. dvf modified Wedday, 3 July 2002 at 09: 04: 42 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 1.25 1.211 1.059 0.7195 0.5311 0.1361 1962 1.251 1.204 1.022 0.6214 0.4465 0.1141 1963 1.251 1.201 1.014 0.6634 0.4827 0.1234 1964 1.251 1.199 1.008 0.6174 0.4409 0.1116 1965 1.251 1.205 1.028 0.6307 0.4558 0.1167 1966 1.737 1.677 1.435 1.026 0.7571 0.1941 1967 1.251 1.201 1.021 0.682 0.4974 0.128 1968 1.251 1.198 1.004 0.6594 0.4768 0.1213 1969 1.251 1.199 1.005 0.6419 0.4709 0.1206 1970 1.835 1.769 1.482 0.9715 0.7075 0.1809 1971 1.251 1.206 1.032 0.6772 0.4878 0.1248 1972 1.251 1.208 1.041 0.671 0.4947 0.1272 1973 1.652 1.582 1.332 0.9351 0.6804 0.1729 1974 1.251 1.196 0.9956 0.6468 0.4739 0.121 1975 1.735 1.678 1.445 0.9252 0.6675 0.1699 1976 1.442 1.393 1.21 0.8338 0.6055 0.1542 1977 1.251 1.189 0.9609 0.5503 0.3918 0.09934 1978 1.25 1.2 1.01 0.6428 0.4655 0.1185 1979 1.251 1.206 1.032 0.6667 0.4829 0.123 1980 1.251 1.202 1.013 0.6539 0.4847 0.1232 1981 1.251 1.194 1.003 0.6649 0.4827 0.1233 1982 1.251 1.208 1.035 0.6761 0.5045 0.1301 1983 1.251 1.207 1.076 0.7583 0.5506 0.1391 1984 1.298 1.248 1.142 0.7769 0.5633 0.143 1985 1.251 1.189 0.9655 0.5844 0.4221 0.1076 1986 1.25 1.197 0.9975 0.6336 0.4613 0.1177 1987 1.251 1.199 1.002 0.6044 0.4293 0.1085 1988 1.25 1.203 1.019 0.6323 0.4518 0.1138 1989 1.251 1.204 1.027 0.6755 0.4946 0.1264 1990 1.251 1.202 1.017 0.6663 0.4859 0.1245 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 1.835 1.769 1.482 1.026 0.7571 0.1941 0.0645161290322581 1.737 1.678 1.445 0.9715 0.7075 0.1809 0.0967741935483871 1.735 1.677 1.435 0.9351 0.6804 0.1729 0.129032258064516 1.652 1.582 1.332 0.9252 0.6675 0.1699 0.161290322580645 1.442 1.393 1.21 0.8338 0.6055 0.1542 0.193548387096774 1.298 1.248 1.142 0.7769 0.5633 0.143 173 0.225806451612903 1.251 1.211 1.076 0.7583 0.5506 0.1391 0.258064516129032 1.251 1.208 1.059 0.7195 0.5311 0.1361 0.290322580645161 1.251 1.208 1.041 0.682 0.5045 0.1301 0.32258064516129 1.251 1.207 1.035 0.6772 0.4974 0.128 0.354838709677419 1.251 1.206 1.032 0.6761 0.4947 0.1272 0.387096774193548 1.251 1.206 1.032 0.6755 0.4946 0.1264 0.419354838709677 1.251 1.205 1.028 0.671 0.4878 0.1248 0.451612903225806 1.251 1.204 1.027 0.6667 0.4859 0.1245 0.483870967741936 1.251 1.204 1.022 0.6663 0.4847 0.1234 0.516129032258065 1.251 1.203 1.021 0.6649 0.4829 0.1233 0.548387096774194 1.251 1.202 1.019 0.6634 0.4827 0.1232 0.580645161290323 1.251 1.202 1.017 0.6594 0.4827 0.123 0.612903225806452 1.251 1.201 1.014 0.6539 0.4768 0.1213 0.645161290322581 1.251 1.201 1.013 0.6468 0.4739 0.121 0.67741935483871 1.251 1.2 1.01 0.6428 0.4709 0.1206 0.709677419354839 1.251 1.199 1.008 0.6419 0.4655 0.1185 0.741935483870968 1.251 1.199 1.005 0.6336 0.4613 0.1177 0.774193548387097 1.251 1.199 1.004 0.6323 0.4558 0.1167 0.806451612903226 1.251 1.198 1.003 0.6307 0.4518 0.1141 0.838709677419355 1.251 1.197 1.002 0.6214 0.4465 0.1138 0.870967741935484 1.25 1.196 0.9975 0.6174 0.4409 0.1116 0.903225806451613 1.25 1.194 0.9956 0.6044 0.4293 0.1085 0.935483870967742 1.25 1.189 0.9655 0.5844 0.4221 0.1076 0.967741935483871 1.25 1.189 0.9609 0.5503 0.3918 0.09934 0.1 1.7267 1.6675 1.4247 0.93411 0.67911 0.1726 Average of yearly averages: 0.130494666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicMIAaspaerial Metfile: w14848. dvf PRZM scenario: MIAsparagusC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 2 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 0.56 kg/ ha Application Efficiency: APPEFF .95 fraction Spray Drift DRFT .05 fraction of application rate applied to pond Application Date Date 15 04 dd/ mm or dd/ mmm or dd mm or dd mmm 174 Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

Dicamba Florida Turf stored as dicfFLturfground. out Chemical: dicamba PRZM environment: FLturfC. txt modified Monday, 16 June 2003 at 14: 48: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w12834. dvf modified Wedday, 3 July 2002 at 09: 04: 28 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 1.12 1.036 0.7594 0.5268 0.3711 0.09259 1962 1.12 1.036 0.7548 0.3835 0.2704 0.06745 1963 1.12 1.022 0.832 0.542 0.3767 0.09374 1964 3.296 2.99 2.003 1.128 0.7859 0.195 1965 1.12 1.027 0.729 0.3833 0.2765 0.06954 1966 1.141 1.028 0.7327 0.5747 0.3987 0.09914 1967 1.12 1.02 0.7068 0.4005 0.2982 0.07521 1968 1.12 1.021 0.7098 0.3597 0.2461 0.06094 1969 1.12 1.025 0.7302 0.5132 0.3621 0.0903 1970 1.12 1.016 0.6946 0.403 0.2863 0.07148 1971 1.12 1.031 0.7408 0.4502 0.3162 0.07894 1972 1.12 1.025 0.7227 0.371 0.2544 0.06301 1973 1.12 1.029 0.7356 0.3762 0.2585 0.06423 1974 1.12 1.028 0.7304 0.3691 0.2535 0.063 1975 1.578 1.445 1.018 0.5079 0.3479 0.08641 1976 1.12 1.023 0.7729 0.551 0.3842 0.09548 1977 1.12 1.026 0.7247 0.3772 0.2602 0.06466 1978 17.7 16.09 11 5.367 3.669 0.9102 1979 1.445 1.314 1.005 0.559 0.3852 0.09598 1980 1.686 1.519 1.019 0.7268 0.5186 0.1292 1981 1.12 1.024 0.7196 0.4453 0.3228 0.08087 1982 1.12 1.018 0.7018 0.3836 0.2684 0.06694 1983 2.424 2.252 1.68 0.8827 0.6093 0.1515 1984 1.12 1.03 0.7381 0.5749 0.4364 0.1102 1985 1.12 1.027 0.7264 0.3662 0.2504 0.0622 1986 1.12 1.036 0.7576 0.3932 0.2705 0.06716 1987 1.12 1.042 0.7778 0.461 0.3194 0.07947 1988 1.12 1.029 0.7609 0.4135 0.2856 0.07085 1989 1.802 1.672 1.119 0.7291 0.5084 0.1265 1990 1.12 1.028 0.7286 0.3616 0.2473 0.06141 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 17.7 16.09 11 5.367 3.669 0.9102 175 0.0645161290322581 3.296 2.99 2.003 1.128 0.7859 0.195 0.0967741935483871 2.424 2.252 1.68 0.8827 0.6093 0.1515 0.129032258064516 1.802 1.672 1.119 0.7291 0.5186 0.1292 0.161290322580645 1.686 1.519 1.019 0.7268 0.5084 0.1265 0.193548387096774 1.578 1.445 1.018 0.5749 0.4364 0.1102 0.225806451612903 1.445 1.314 1.005 0.5747 0.3987 0.09914 0.258064516129032 1.141 1.042 0.832 0.559 0.3852 0.09598 0.290322580645161 1.12 1.036 0.7778 0.551 0.3842 0.09548 0.32258064516129 1.12 1.036 0.7729 0.542 0.3767 0.09374 0.354838709677419 1.12 1.036 0.7609 0.5268 0.3711 0.09259 0.387096774193548 1.12 1.031 0.7594 0.5132 0.3621 0.0903 0.419354838709677 1.12 1.03 0.7576 0.5079 0.3479 0.08641 0.451612903225806 1.12 1.029 0.7548 0.461 0.3228 0.08087 0.483870967741936 1.12 1.029 0.7408 0.4502 0.3194 0.07947 0.516129032258065 1.12 1.028 0.7381 0.4453 0.3162 0.07894 0.548387096774194 1.12 1.028 0.7356 0.4135 0.2982 0.07521 0.580645161290323 1.12 1.028 0.7327 0.403 0.2863 0.07148 0.612903225806452 1.12 1.027 0.7304 0.4005 0.2856 0.07085 0.645161290322581 1.12 1.027 0.7302 0.3932 0.2765 0.06954 0.67741935483871 1.12 1.026 0.729 0.3836 0.2705 0.06745 0.709677419354839 1.12 1.025 0.7286 0.3835 0.2704 0.06716 0.741935483870968 1.12 1.025 0.7264 0.3833 0.2684 0.06694 0.774193548387097 1.12 1.024 0.7247 0.3772 0.2602 0.06466 0.806451612903226 1.12 1.023 0.7227 0.3762 0.2585 0.06423 0.838709677419355 1.12 1.022 0.7196 0.371 0.2544 0.06301 0.870967741935484 1.12 1.021 0.7098 0.3691 0.2535 0.063 0.903225806451613 1.12 1.02 0.7068 0.3662 0.2504 0.0622 0.935483870967742 1.12 1.018 0.7018 0.3616 0.2473 0.06141 0.967741935483871 1.12 1.016 0.6946 0.3597 0.2461 0.06094 0.1 2.3618 2.194 1.6239 0.86734 0.60023 0.14927 Average of yearly averages: 0.114786666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicfFLturfground Metfile: w12834. dvf PRZM scenario: FLturfC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 1 integer See PRZM manual 176 Incorporation Depth: DEPI 0 cm Application Rate: TAPP 2.24 kg/ ha Application Efficiency: APPEFF .99 fraction Spray Drift DRFT .01 fraction of application rate applied to pond Application Date Date 15 04 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

stored as dicfFLturfaerial. out Chemical: dicamba PRZM environment: FLturfC. txt modified Monday, 16 June 2003 at 14: 48: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w12834. dvf modified Wedday, 3 July 2002 at 09: 04: 28 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 5.6 5.182 3.797 2.111 1.464 0.3642 1962 5.6 5.178 3.774 1.914 1.32 0.3282 1963 5.6 5.112 3.68 1.951 1.335 0.3316 1964 5.6 5.082 4.297 2.49 1.717 0.4255 1965 5.6 5.134 3.645 1.899 1.322 0.3298 1966 5.6 5.142 3.663 2.052 1.405 0.3486 1967 5.6 5.1 3.534 1.825 1.277 0.3187 1968 5.6 5.105 3.549 1.789 1.223 0.3026 1969 5.6 5.124 3.614 1.966 1.356 0.3369 1970 5.6 5.081 3.473 1.777 1.225 0.3044 1971 5.6 5.154 3.704 1.986 1.374 0.342 1972 5.6 5.125 3.613 1.846 1.265 0.3133 1973 5.6 5.147 3.678 1.879 1.291 0.3206 1974 5.6 5.139 3.652 1.844 1.266 0.3146 1975 6.04 5.529 3.895 1.944 1.331 0.3307 1976 5.6 5.114 3.634 1.998 1.375 0.3411 1977 5.6 5.129 3.623 1.847 1.266 0.3142 1978 20.9 19 12.98 6.534 4.464 1.107 1979 5.6 5.093 3.798 1.928 1.322 0.3284 1980 5.6 5.146 3.677 2.214 1.539 0.3818 1981 5.6 5.12 3.598 1.918 1.332 0.3313 1982 5.6 5.09 3.509 1.817 1.251 0.3112 1983 6.851 6.365 4.732 2.479 1.71 0.4251 1984 5.6 5.151 3.691 2.074 1.469 0.3664 1985 5.6 5.133 3.632 1.825 1.247 0.3097 1986 5.6 5.18 3.788 1.966 1.352 0.3358 1987 5.6 5.212 3.889 2.074 1.428 0.3548 1988 5.6 5.146 3.704 1.945 1.34 0.3323 1989 5.6 5.134 3.938 2.189 1.509 0.375 1990 5.6 5.138 3.643 1.808 1.236 0.3069 177 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 20.9 19 12.98 6.534 4.464 1.107 0.0645161290322581 6.851 6.365 4.732 2.49 1.717 0.4255 0.0967741935483871 6.04 5.529 4.297 2.479 1.71 0.4251 0.129032258064516 5.6 5.212 3.938 2.214 1.539 0.3818 0.161290322580645 5.6 5.182 3.895 2.189 1.509 0.375 0.193548387096774 5.6 5.18 3.889 2.111 1.469 0.3664 0.225806451612903 5.6 5.178 3.798 2.074 1.464 0.3642 0.258064516129032 5.6 5.154 3.797 2.074 1.428 0.3548 0.290322580645161 5.6 5.151 3.788 2.052 1.405 0.3486 0.32258064516129 5.6 5.147 3.774 1.998 1.375 0.342 0.354838709677419 5.6 5.146 3.704 1.986 1.374 0.3411 0.387096774193548 5.6 5.146 3.704 1.966 1.356 0.3369 0.419354838709677 5.6 5.142 3.691 1.966 1.352 0.3358 0.451612903225806 5.6 5.139 3.68 1.951 1.34 0.3323 0.483870967741936 5.6 5.138 3.678 1.945 1.335 0.3316 0.516129032258065 5.6 5.134 3.677 1.944 1.332 0.3313 0.548387096774194 5.6 5.134 3.663 1.928 1.331 0.3307 0.580645161290323 5.6 5.133 3.652 1.918 1.322 0.3298 0.612903225806452 5.6 5.129 3.645 1.914 1.322 0.3284 0.645161290322581 5.6 5.125 3.643 1.899 1.32 0.3282 0.67741935483871 5.6 5.124 3.634 1.879 1.291 0.3206 0.709677419354839 5.6 5.12 3.632 1.847 1.277 0.3187 0.741935483870968 5.6 5.114 3.623 1.846 1.266 0.3146 0.774193548387097 5.6 5.112 3.614 1.844 1.266 0.3142 0.806451612903226 5.6 5.105 3.613 1.825 1.265 0.3133 0.838709677419355 5.6 5.1 3.598 1.825 1.251 0.3112 0.870967741935484 5.6 5.093 3.549 1.817 1.247 0.3097 0.903225806451613 5.6 5.09 3.534 1.808 1.236 0.3069 0.935483870967742 5.6 5.082 3.509 1.789 1.225 0.3044 0.967741935483871 5.6 5.081 3.473 1.777 1.223 0.3026 0.1 5.996 5.4973 4.2611 2.4525 1.6929 0.42077 Average of yearly averages: 0.364423333333333 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicfFLturfaerial Metfile: w12834. dvf PRZM scenario: FLturfC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife 178 Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 2.24 kg/ ha Application Efficiency: APPEFF .95 fraction Spray Drift DRFT .05 fraction of application rate applied to pond Application Date Date 15 04 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

Dicamba Pennsylvania Turf stored as dicfPAturfground. out Chemical: dicamba PRZM environment: PAturfC. txt modified Satday, 12 October 2002 at 17: 27: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w14737. dvf modified Wedday, 3 July 2002 at 09: 06: 12 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 1.12 1.079 0.922 0.6039 0.4395 0.1115 1962 1.12 1.074 0.8978 0.5549 0.3982 0.1014 1963 1.12 1.074 0.8994 0.5784 0.42 0.107 1964 1.804 1.735 1.437 0.9345 0.6778 0.1722 1965 1.121 1.08 0.9199 0.5642 0.4066 0.1037 1966 1.12 1.082 0.9338 0.6186 0.4486 0.1137 1967 1.121 1.078 0.9489 0.6587 0.4788 0.1224 1968 9.885 9.431 7.645 4.799 3.524 0.901 1969 1.127 1.093 0.9403 0.5801 0.417 0.108 1970 1.121 1.07 0.8851 0.5556 0.4034 0.1027 1971 1.12 1.079 0.9186 0.6457 0.4742 0.121 1972 1.522 1.467 1.253 0.7781 0.5582 0.1411 1973 1.121 1.073 0.8966 0.5811 0.4173 0.1056 1974 1.12 1.068 0.8781 0.5755 0.4221 0.1079 1975 1.121 1.08 0.9201 0.566 0.4068 0.1032 1976 1.12 1.069 0.8794 0.5587 0.4017 0.1018 1977 1.12 1.068 0.8755 0.5274 0.3785 0.09587 1978 1.12 1.074 0.8982 0.5714 0.4118 0.1045 1979 1.12 1.075 0.9261 0.584 0.4232 0.1077 1980 1.12 1.07 0.9294 0.5916 0.4277 0.1079 1981 1.12 1.071 0.8875 0.5934 0.4284 0.1088 1982 1.121 1.079 0.9352 0.5893 0.4272 0.1088 1983 4.022 3.847 3.192 2.063 1.491 0.3769 1984 1.165 1.123 0.9475 0.5846 0.4169 0.1055 1985 2.581 2.403 1.855 1.223 0.9184 0.2352 179 1986 6.875 6.658 5.481 3.271 2.346 0.595 1987 1.123 1.073 0.8878 0.55 0.3937 0.1007 1988 1.12 1.078 0.9108 0.5529 0.3964 0.0998 1989 1.12 1.076 0.9208 0.6402 0.4654 0.1186 1990 1.12 1.071 0.8886 0.5772 0.4181 0.1062 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 9.885 9.431 7.645 4.799 3.524 0.901 0.0645161290322581 6.875 6.658 5.481 3.271 2.346 0.595 0.0967741935483871 4.022 3.847 3.192 2.063 1.491 0.3769 0.129032258064516 2.581 2.403 1.855 1.223 0.9184 0.2352 0.161290322580645 1.804 1.735 1.437 0.9345 0.6778 0.1722 0.193548387096774 1.522 1.467 1.253 0.7781 0.5582 0.1411 0.225806451612903 1.165 1.123 0.9489 0.6587 0.4788 0.1224 0.258064516129032 1.127 1.093 0.9475 0.6457 0.4742 0.121 0.290322580645161 1.123 1.082 0.9403 0.6402 0.4654 0.1186 0.32258064516129 1.121 1.08 0.9352 0.6186 0.4486 0.1137 0.354838709677419 1.121 1.08 0.9338 0.6039 0.4395 0.1115 0.387096774193548 1.121 1.079 0.9294 0.5934 0.4284 0.1088 0.419354838709677 1.121 1.079 0.9261 0.5916 0.4277 0.1088 0.451612903225806 1.121 1.079 0.922 0.5893 0.4272 0.108 0.483870967741936 1.121 1.078 0.9208 0.5846 0.4232 0.1079 0.516129032258065 1.12 1.078 0.9201 0.584 0.4221 0.1079 0.548387096774194 1.12 1.076 0.9199 0.5811 0.42 0.1077 0.580645161290323 1.12 1.075 0.9186 0.5801 0.4181 0.107 0.612903225806452 1.12 1.074 0.9108 0.5784 0.4173 0.1062 0.645161290322581 1.12 1.074 0.8994 0.5772 0.417 0.1056 0.67741935483871 1.12 1.074 0.8982 0.5755 0.4169 0.1055 0.709677419354839 1.12 1.073 0.8978 0.5714 0.4118 0.1045 0.741935483870968 1.12 1.073 0.8966 0.566 0.4068 0.1037 0.774193548387097 1.12 1.071 0.8886 0.5642 0.4066 0.1032 0.806451612903226 1.12 1.071 0.8878 0.5587 0.4034 0.1027 0.838709677419355 1.12 1.07 0.8875 0.5556 0.4017 0.1018 0.870967741935484 1.12 1.07 0.8851 0.5549 0.3982 0.1014 0.903225806451613 1.12 1.069 0.8794 0.5529 0.3964 0.1007 0.935483870967742 1.12 1.068 0.8781 0.55 0.3937 0.0998 0.967741935483871 1.12 1.068 0.8755 0.5274 0.3785 0.09587 0.1 3.8779 3.7026 3.0583 1.979 1.43374 0.36273 Average of yearly averages: 0.166522333333333 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicfPAturfground Metfile: w14737. dvf PRZM scenario: PAturfC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr 180 Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 2.24 kg/ ha Application Efficiency: APPEFF .99 fraction Spray Drift DRFT .01 fraction of application rate applied to pond Application Date Date 15 04 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

stored as dicfPAturfaerial. out Chemical: dicamba PRZM environment: PAturfC. txt modified Satday, 12 October 2002 at 17: 27: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w14737. dvf modified Wedday, 3 July 2002 at 09: 06: 12 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 5.6 5.395 4.61 3.019 2.197 0.5573 1962 5.602 5.37 4.489 2.775 1.99 0.5066 1963 5.602 5.369 4.497 2.892 2.1 0.5351 1964 5.831 5.606 5.043 3.175 2.293 0.5824 1965 5.603 5.399 4.598 2.82 2.032 0.5176 1966 5.602 5.41 4.665 3.088 2.239 0.5676 1967 5.603 5.388 4.612 3.128 2.27 0.5799 1968 13.14 12.54 10.16 6.789 5.057 1.291 1969 5.607 5.37 4.46 2.738 1.968 0.501 1970 5.602 5.352 4.425 2.778 2.017 0.5134 1971 5.602 5.393 4.593 3.051 2.222 0.5656 1972 5.904 5.694 4.92 3.039 2.179 0.5507 1973 5.602 5.365 4.483 2.905 2.086 0.5275 1974 5.602 5.342 4.39 2.797 2.042 0.5211 1975 5.602 5.399 4.601 2.83 2.034 0.516 1976 5.602 5.343 4.397 2.793 2.008 0.5089 1977 5.602 5.342 4.377 2.637 1.892 0.4793 1978 5.602 5.369 4.491 2.813 2.022 0.5129 1979 5.602 5.376 4.536 2.814 2.035 0.5177 1980 5.602 5.351 4.459 2.743 1.976 0.498 1981 5.602 5.356 4.437 2.785 1.996 0.5057 1982 5.602 5.393 4.599 2.862 2.071 0.5271 181 1983 8.286 7.924 6.655 4.282 3.094 0.7824 1984 5.603 5.412 4.517 2.768 1.973 0.4974 1985 5.602 5.339 4.681 3.301 2.415 0.6146 1986 11.02 10.61 8.72 5.267 3.774 0.9573 1987 5.604 5.356 4.432 2.745 1.965 0.4978 1988 5.602 5.388 4.554 2.764 1.981 0.4989 1989 5.602 5.381 4.55 2.919 2.107 0.5359 1990 5.602 5.357 4.443 2.8 2.02 0.5125 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 13.14 12.54 10.16 6.789 5.057 1.291 0.0645161290322581 11.02 10.61 8.72 5.267 3.774 0.9573 0.0967741935483871 8.286 7.924 6.655 4.282 3.094 0.7824 0.129032258064516 5.904 5.694 5.043 3.301 2.415 0.6146 0.161290322580645 5.831 5.606 4.92 3.175 2.293 0.5824 0.193548387096774 5.607 5.412 4.681 3.128 2.27 0.5799 0.225806451612903 5.604 5.41 4.665 3.088 2.239 0.5676 0.258064516129032 5.603 5.399 4.612 3.051 2.222 0.5656 0.290322580645161 5.603 5.399 4.61 3.039 2.197 0.5573 0.32258064516129 5.603 5.395 4.601 3.019 2.179 0.5507 0.354838709677419 5.602 5.393 4.599 2.919 2.107 0.5359 0.387096774193548 5.602 5.393 4.598 2.905 2.1 0.5351 0.419354838709677 5.602 5.388 4.593 2.892 2.086 0.5275 0.451612903225806 5.602 5.388 4.554 2.862 2.071 0.5271 0.483870967741936 5.602 5.381 4.55 2.83 2.042 0.5211 0.516129032258065 5.602 5.376 4.536 2.82 2.035 0.5177 0.548387096774194 5.602 5.37 4.517 2.814 2.034 0.5176 0.580645161290323 5.602 5.37 4.497 2.813 2.032 0.516 0.612903225806452 5.602 5.369 4.491 2.8 2.022 0.5134 0.645161290322581 5.602 5.369 4.489 2.797 2.02 0.5129 0.67741935483871 5.602 5.365 4.483 2.793 2.017 0.5125 0.709677419354839 5.602 5.357 4.46 2.785 2.008 0.5089 0.741935483870968 5.602 5.356 4.459 2.778 1.996 0.5066 0.774193548387097 5.602 5.356 4.443 2.775 1.99 0.5057 0.806451612903226 5.602 5.352 4.437 2.768 1.981 0.501 0.838709677419355 5.602 5.351 4.432 2.764 1.976 0.4989 0.870967741935484 5.602 5.343 4.425 2.745 1.973 0.498 0.903225806451613 5.602 5.342 4.397 2.743 1.968 0.4978 0.935483870967742 5.602 5.342 4.39 2.738 1.965 0.4974 0.967741935483871 5.6 5.339 4.377 2.637 1.892 0.4793 0.1 8.0478 7.701 6.4938 4.1839 3.0261 0.76562 Average of yearly averages: 0.575973333333333 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicfPAturfaerial Metfile: w14737. dvf PRZM scenario: PAturfC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments 182 Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 2.24 kg/ ha Application Efficiency: APPEFF .95 fraction Spray Drift DRFT .05 fraction of application rate applied to pond Application Date Date 15 04 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run) 183 Dicamba Mississippi Soybean stored as dicMSsoybeanground. out Chemical: dicamba PRZM environment: MSsoybeanC. txt modified Satday, 12 October 2002 at 17: 07: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w13893. dvf modified Wedday, 3 July 2002 at 09: 06: 20 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 5.323 4.892 3.707 2.027 1.413 0.3523 1962 1.12 0.9993 0.6455 0.3394 0.2346 0.05868 1963 3.057 2.794 1.803 1.036 0.7428 0.1862 1964 6.972 6.333 4.517 2.305 1.576 0.3906 1965 1.12 0.9913 0.6388 0.3739 0.2585 0.06459 1966 9.735 8.91 6.407 3.381 2.32 0.5765 1967 17.5 15.9 11.71 6.312 4.341 1.081 1968 2.789 2.578 1.81 1.011 0.6965 0.1739 1969 2.722 2.472 1.701 0.9404 0.6461 0.1606 1970 29.07 26.31 17.88 8.935 6.11 1.517 1971 3.715 3.41 2.444 1.334 0.924 0.2316 1972 36.21 32.99 22.99 11.65 7.946 1.967 1973 28.62 26.08 18.78 9.571 6.523 1.619 1974 2.115 1.889 1.232 0.7526 0.5221 0.131 1975 17.14 15.32 10.52 5.152 3.527 0.8763 1976 8.642 7.949 5.722 3.046 2.111 0.5248 1977 1.12 1.003 0.6558 0.3153 0.2145 0.05394 1978 8.775 7.96 5.862 2.901 1.975 0.4894 1979 33.76 30.78 20.91 10.29 7.023 1.742 1980 7.958 7.175 5.183 2.515 1.711 0.424 1981 2.024 1.841 1.319 0.7574 0.5171 0.1287 1982 1.12 1.005 0.6793 0.4182 0.2871 0.07136 1983 5.092 4.673 3.278 1.721 1.196 0.297 1984 34.34 30.82 20.39 9.796 6.666 1.649 1985 1.121 1.02 0.7237 0.4567 0.3148 0.07975 1986 1.398 1.266 1.015 0.5787 0.3952 0.09806 1987 1.12 1.003 0.6579 0.3528 0.2415 0.06001 1988 1.12 1.017 0.6999 0.399 0.2739 0.06782 1989 1.12 1.026 0.7274 0.3903 0.2675 0.06645 1990 3.491 3.202 2.306 1.228 0.8387 0.2081 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 36.21 32.99 22.99 11.65 7.946 1.967 0.0645161290322581 34.34 30.82 20.91 10.29 7.023 1.742 0.0967741935483871 33.76 30.78 20.39 9.796 6.666 1.649 0.129032258064516 29.07 26.31 18.78 9.571 6.523 1.619 0.161290322580645 28.62 26.08 17.88 8.935 6.11 1.517 0.193548387096774 17.5 15.9 11.71 6.312 4.341 1.081 0.225806451612903 17.14 15.32 10.52 5.152 3.527 0.8763 0.258064516129032 9.735 8.91 6.407 3.381 2.32 0.5765 0.290322580645161 8.775 7.96 5.862 3.046 2.111 0.5248 0.32258064516129 8.642 7.949 5.722 2.901 1.975 0.4894 0.354838709677419 7.958 7.175 5.183 2.515 1.711 0.424 184 0.387096774193548 6.972 6.333 4.517 2.305 1.576 0.3906 0.419354838709677 5.323 4.892 3.707 2.027 1.413 0.3523 0.451612903225806 5.092 4.673 3.278 1.721 1.196 0.297 0.483870967741936 3.715 3.41 2.444 1.334 0.924 0.2316 0.516129032258065 3.491 3.202 2.306 1.228 0.8387 0.2081 0.548387096774194 3.057 2.794 1.81 1.036 0.7428 0.1862 0.580645161290323 2.789 2.578 1.803 1.011 0.6965 0.1739 0.612903225806452 2.722 2.472 1.701 0.9404 0.6461 0.1606 0.645161290322581 2.115 1.889 1.319 0.7574 0.5221 0.131 0.67741935483871 2.024 1.841 1.232 0.7526 0.5171 0.1287 0.709677419354839 1.398 1.266 1.015 0.5787 0.3952 0.09806 0.741935483870968 1.121 1.026 0.7274 0.4567 0.3148 0.07975 0.774193548387097 1.12 1.02 0.7237 0.4182 0.2871 0.07136 0.806451612903226 1.12 1.017 0.6999 0.399 0.2739 0.06782 0.838709677419355 1.12 1.005 0.6793 0.3903 0.2675 0.06645 0.870967741935484 1.12 1.003 0.6579 0.3739 0.2585 0.06459 0.903225806451613 1.12 1.003 0.6558 0.3528 0.2415 0.06001 0.935483870967742 1.12 0.9993 0.6455 0.3394 0.2346 0.05868 0.967741935483871 1.12 0.9913 0.6388 0.3153 0.2145 0.05394 0.1 33.291 30.333 20.229 9.7735 6.6517 1.646 Average of yearly averages: 0.511555333333333 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicMSsoybeanground Metfile: w13893. dvf PRZM scenario: MSsoybeanC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 2.24 kg/ ha Application Efficiency: APPEFF .99 fraction Spray Drift DRFT .01 fraction of application rate applied to pond Application Date Date 01 05 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF Record 18: PLVKRT PLDKRT 185 FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

stored as dicMSsoybeanaerial. out Chemical: dicamba PRZM environment: MSsoybeanC. txt modified Satday, 12 October 2002 at 17: 07: 00 EXAMS environment: pond298. exv modified Thuday, 24 July 2003 at 10: 02: 00 Metfile: w13893. dvf modified Wedday, 3 July 2002 at 09: 06: 20 Water segment concentrations ( ppb)

Year Peak 96 hr 21 Day 60 Day 90 Day Yearly 1961 8.458 7.882 6.169 3.533 2.454 0.6115 1962 5.601 4.995 3.226 1.576 1.078 0.2682 1963 5.6 5.07 3.449 2.38 1.659 0.4139 1964 11 9.989 7.086 3.634 2.483 0.6153 1965 5.6 4.956 3.132 1.541 1.053 0.2619 1966 13.87 12.69 9.074 4.769 3.272 0.8131 1967 20.34 18.49 14.08 7.496 5.152 1.283 1968 5.601 5.111 4.311 2.429 1.662 0.413 1969 5.823 5.289 4.391 2.329 1.594 0.3959 1970 32.42 29.34 19.94 9.964 6.814 1.692 1971 6.367 5.845 4.79 2.818 1.938 0.4836 1972 39.27 35.78 24.92 12.63 8.613 2.132 1973 31.99 29.15 20.89 10.63 7.248 1.798 1974 5.601 5.002 3.67 1.986 1.363 0.3397 1975 20.48 18.31 12.45 6.213 4.25 1.056 1976 11.96 11 7.917 4.512 3.119 0.7748 1977 5.6 5.013 3.278 1.567 1.063 0.2644 1978 12.48 11.28 8.131 4.088 2.781 0.6892 1979 36.48 33.23 22.57 11.25 7.673 1.904 1980 10.17 9.17 6.506 3.731 2.53 0.6262 1981 5.6 5.094 4.099 2.147 1.461 0.3626 1982 5.6 5.022 3.323 1.695 1.155 0.2865 1983 7.07 6.441 4.956 2.948 2.032 0.5044 1984 37.23 33.4 22.06 10.67 7.257 1.795 1985 5.601 5.097 3.547 1.882 1.288 0.3212 1986 5.6 5.069 3.758 1.933 1.315 0.3261 1987 5.6 5.017 3.289 1.617 1.101 0.2732 1988 5.6 5.083 3.491 1.787 1.218 0.3014 1989 5.6 5.13 3.637 1.898 1.299 0.3227 1990 7.681 7.045 5.15 2.702 1.843 0.4574 Sorted results Prob. Peak 96 hr 21 Day 60 Day 90 Day Yearly 0.032258064516129 39.27 35.78 24.92 12.63 8.613 2.132 0.0645161290322581 37.23 33.4 22.57 11.25 7.673 1.904 0.0967741935483871 36.48 33.23 22.06 10.67 7.257 1.798 0.129032258064516 32.42 29.34 20.89 10.63 7.248 1.795 0.161290322580645 31.99 29.15 19.94 9.964 6.814 1.692 0.193548387096774 20.48 18.49 14.08 7.496 5.152 1.283 0.225806451612903 20.34 18.31 12.45 6.213 4.25 1.056 0.258064516129032 13.87 12.69 9.074 4.769 3.272 0.8131 0.290322580645161 12.48 11.28 8.131 4.512 3.119 0.7748 186 0.32258064516129 11.96 11 7.917 4.088 2.781 0.6892 0.354838709677419 11 9.989 7.086 3.731 2.53 0.6262 0.387096774193548 10.17 9.17 6.506 3.634 2.483 0.6153 0.419354838709677 8.458 7.882 6.169 3.533 2.454 0.6115 0.451612903225806 7.681 7.045 5.15 2.948 2.032 0.5044 0.483870967741936 7.07 6.441 4.956 2.818 1.938 0.4836 0.516129032258065 6.367 5.845 4.79 2.702 1.843 0.4574 0.548387096774194 5.823 5.289 4.391 2.429 1.662 0.4139 0.580645161290323 5.601 5.13 4.311 2.38 1.659 0.413 0.612903225806452 5.601 5.111 4.099 2.329 1.594 0.3959 0.645161290322581 5.601 5.097 3.758 2.147 1.461 0.3626 0.67741935483871 5.601 5.094 3.67 1.986 1.363 0.3397 0.709677419354839 5.6 5.083 3.637 1.933 1.315 0.3261 0.741935483870968 5.6 5.07 3.547 1.898 1.299 0.3227 0.774193548387097 5.6 5.069 3.491 1.882 1.288 0.3212 0.806451612903226 5.6 5.022 3.449 1.787 1.218 0.3014 0.838709677419355 5.6 5.017 3.323 1.695 1.155 0.2865 0.870967741935484 5.6 5.013 3.289 1.617 1.101 0.2732 0.903225806451613 5.6 5.002 3.278 1.576 1.078 0.2682 0.935483870967742 5.6 4.995 3.226 1.567 1.063 0.2644 0.967741935483871 5.6 4.956 3.132 1.541 1.053 0.2619 0.1 36.074 32.841 21.943 10.666 7.2561 1.7977 Average of yearly averages: 0.726206666666667 Inputs generated by pe4. pl  8 August 2003 Data used for this run: Output File: dicMSsoybeanaerial Metfile: w13893. dvf PRZM scenario: MSsoybeanC. txt EXAMS environment file: pond298. exv Chemical Name: dicamba Description Variable Name Value Units Comments Molecular weight mwt 221.04 g/ mol Henry's Law Const. henry 1.6e 09 atm m^ 3/ mol Vapor Pressure vapr 3.41e 05 torr Solubility sol 6100 mg/ L Kd Kd mg/ L Koc Koc 13.4 mg/ L Photolysis half life kdp 38.1 days Half life Aerobic Aquatic Metabolism kbacw 12 days Halfife Anaerobic Aquatic Metabolism kbacs 423 days Halfife Aerobic Soil Metabolism asm 18 days Halfife Hydrolysis: pH 7 0 days Half life Method: CAM 1 integer See PRZM manual Incorporation Depth: DEPI 0 cm Application Rate: TAPP 2.24 kg/ ha Application Efficiency: APPEFF .95 fraction Spray Drift DRFT .05 fraction of application rate applied to pond Application Date Date 01 05 dd/ mm or dd/ mmm or dd mm or dd mmm Record 17: FILTRA IPSCND 1 UPTKF 187 Record 18: PLVKRT PLDKRT FEXTRC 0.5 Flag for Index Res. Run IR Pond Flag for runoff calc. RUNOFF none, monthly or total( average of entire run)

Appendix C: Terrestrial Bird and Mammal Model Results T REX Version 1.2.3 August 8 2005 TREX MODEL INPUTS These values will be used in the calculation of exposure estimates for foliar, granular, liquid and/ or seed applications of pesticides Chemical Name: dicamba Use: sugarcane Product name and form: % A. I.: 100 Application Rate ( lbs/ A): 2.8 Half life ( days): 35 Application Interval ( days):

Number of Applications: 1 Note: Sources of wildlife diet are assumed to be available for less than one year for this model.

Endpoints Avian LD50 ( mg/ kg bw) 188.00 bobwhite quail LC50 ( mg/ kg diet)

NOAEL ( mg/ kg bw)

NOAEC ( mg/ kg diet) 695.00 mallard duck Enter the Mineau et al. Scaling Factor 1.15 Mammals LD50 ( mg/ kg bw) 2740.00 rat LC50 ( mg/ kg diet) 188 Reported Chronic Endpoint 45.00 rat Estimated Chronic Daily Dose Equivalent to reported Chronic Dietary Endpoint 900 mg/ kg diet based on standard FDA lab rat conversion Upper Bound Kenaga Residues For RQ Calculation Dietary based EECs ( ppm) Kenaga Values Short Grass 672.00 Tall Grass 308.00 Broadleaf plants/ sm Insects 378.00 Fruits/ pods/ seeds/ lg insects 42.00 Avian Results Avian Body Ingestion ( Fdry) Ingestion ( Fwet) % body wgt FI Class Weight ( g) ( g bw/ day) ( g/ day) consumed ( kg diet/ day) Small 20 5 23 114 2.28E 02 Mid 100 13 65 65 6.49E 02 Large 1000 58 291 29 2.91E 01 Avian Body Weight ( g) Adjusted LD50 ( mg/ kg bw) 20 135.44 100 172.42 1000 243.55 Dose based EECs ( mg/ kg bw) Avian Classes and Body Weights small mid large 20 g 100 g 1000 g Short Grass 765.34 436.43 195.40 Tall Grass 350.78 200.03 89.56 Broadleaf plants/ sm Insects 430.50 245.49 109.91 Fruits/ pods/ seeds/ lg insects 47.83 27.28 12.21 Dose based RQs ( Dose based EEC/ adjusted LD50) Avian Acute RQs 20 g 100 g 1000 g Short Grass 5.65 2.53 0.80 Tall Grass 2.59 1.16 0.37 Broadleaf plants/ sm insects 3.18 1.42 0.45 189 Fruits/ pods/ seeds/ lg insects 0.35 0.16 0.05 190 Dietary based RQs ( Dietary based EEC/ LC50 or NOAEC) RQs Acute Chronic Short Grass # DIV/ 0! 0.97 Tall Grass # DIV/ 0! 0.44 Broadleaf plants/ sm Insects # DIV/ 0! 0.54 Fruits/ pods/ seeds/ lg insects # DIV/ 0! 0.06 Mammalian Results Mammalian Body Ingestion ( Fdry) Ingestion ( Fwet) % body wgt FI Class Weight ( g bwt/ day) ( g/ day) consumed ( kg diet/ day) 15 3 14 95 1.43E 02 Herbivores/ 35 5 23 66 2.31E 02 insectivores 1000 31 153 15 1.53E 01 15 3 3 21 3.18E 03 Grainvores 35 5 5 15 5.13E 03 1000 31 34 3 3.40E 02 Mammalian Body Adjusted Adjusted Class Weight LD50 NOAEL 15 6022.06 98.90 Herbivores/ 35 4872.49 80.02 insectivores 1000 2107.50 34.61 15 6022.06 98.90 Grainvores 35 4872.49 80.02 1000 2107.50 34.61 Dose Based EECs ( mg/ kg bw) Mammalian Classes and Body weight Herbivores/ insectivores Granivores 15 g 35 g 1000 g 15 g 35 g 1000 g Short Grass 640.70 442.81 102.67 Tall Grass 293.65 202.95 47.06 Broadleaf plants/ sm Insects 360.39 249.08 57.75 Fruits/ pods/ seeds/ lg insects 40.04 27.68 6.42 8.90 6.15 1.43 191 Dose based RQs ( Dose based EEC/ LD50 or NOAEL) 15 g mammal 35 g mammal 1000 g mammal Acute Chronic Acute Chronic Acute Chronic Short Grass 0.11 6.48 0.09 5.53 0.05 2.97 Tall Grass 0.05 2.97 0.04 2.54 0.02 1.36 Broadleaf plants/ sm insects 0.06 3.64 0.05 3.11 0.03 1.67 Fruits/ pods/ lg insects 0.01 0.40 0.01 0.35 0.00 0.19 Seeds ( granivore) 0.00 0.09 0.00 0.08 0.00 0.04 Dietary based RQs ( Dietarybased EEC/ LC50 or NOAEC) Mammal RQs Acute Chronic Short Grass # DIV/ 0! 0.75 Tall Grass # DIV/ 0! 0.34 Broadleaf plants/ sm insects # DIV/ 0! 0.42 Fruits/ pods/ seeds/ lg insects # DIV/ 0! 0.05 Mean Kenaga Residues Dietary based EECs ( ppm) Kenaga Values Short Grass 238.00 Tall Grass 100.80 Broadleaf plants/ sm Insects 126.00 Fruits/ pods/ seeds/ lg insects 19.60 Avian Results Avian Body % body wgt Adjusted Class Weight consumed LD50 Small 20 114 135.44 Mid 100 65 172.42 Large 1000 29 243.55 192 Dose based EEC ( mg/ kg bw) Avian Classes and Body Weights small mid large 20 g 100 g 1000 g Short Grass 271.32 154.70 69.02 Tall Grass 114.91 65.52 29.23 Broadleaf plants/ sm Insects 143.64 81.90 36.54 Fruits/ pods/ lg insects 22.34 12.74 5.68 Dose based RQs ( Dose based EEC/ LD50) Avian Acute " RQs"

20 g 100 g 1000 g Short Grass 2.00 0.90 0.28 Tall Grass 0.85 0.38 0.12 Broadleaf plants/ sm insects 1.06 0.47 0.15 Fruits/ pods/ lg insects 0.16 0.07 0.02 Dietary based RQs ( Dietary based EEC/ LC50 or NOAEC) " RQs"

Acute Chronic Short Grass # DIV/ 0! 0.34 Tall Grass # DIV/ 0! 0.15 Broadleaf plants/ sm Insects # DIV/ 0! 0.18 Fruits/ pods/ lg insects # DIV/ 0! 0.03 Mammalian Results Mammalian Body % body wgt Adjusted Adjusted Class Weight consumed LD50 NOAEL 15 95 6022.06 98.90 Herbivores/ 35 66 4872.49 80.02 insectivores 1000 15 2107.50 34.61 15 21 6022.06 98.90 Grainvores 35 15 4872.49 80.02 1000 3 2107.50 34.61 193 Dose based EEC ( mg/ kg bw) Mammalian Classes and Body weight Herbivores/ insectivores Granivores 15 g 35 g 1000 g 15 g 35 g 1000 g Short Grass 226.10 157.08 35.70 Tall Grass 95.76 66.53 15.12 Broadleaf plants/ sm Insects 119.70 83.16 18.90 Fruits/ pods/ seeds/ lg insects 18.62 12.94 2.94 4.12 2.94 0.59 Dose based RQs ( Dose based EEC/ LD50 or NOAEL) 15 g mammal 35 g mammal 1000 g mammal Acute Chronic Acute Chronic Acute Chronic Short Grass 0.04 2.29 0.03 1.96 0.02 1.03 Tall Grass 0.02 0.97 0.01 0.83 0.01 0.44 Broadleaf plants/ sm insects 0.02 1.21 0.02 1.04 0.01 0.55 Fruits/ pods/ lg insects 0.00 0.19 0.00 0.16 0.00 0.08 Seeds ( granivore) 0.00 0.04 0.00 0.04 0.00 0.02 Dietary based " RQs" ( EEC/ LC50 or NOAEC) Mammal " RQs"

Acute Chronic Short Grass # DIV/ 0! 0.26 Tall Grass # DIV/ 0! 0.11 Broadleaf plants/ sm insects # DIV/ 0! 0.14 Fruits/ pods/ seeds/ lg insects # DIV/ 0! 0.02 194 Appendix D: TerrPlant Model and Results 195 Terrestrial Plant EECs and Acute Non Listed RQs ( 8/ 8/ 01; version 1.0)) Chemical: Dicamba sugarcane Input Values Application Rate ( lb a. e./ acre) 2.8 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02,

or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC = Sheet Runoff + Drift) Total Loading to Semiaquatic Areas ( EEC = Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01)

( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC25 Emergence RQs,

Semi aquatic Areas RQ =

EEC/ Seedling Emergence EC25 Drift RQs RQ = Drift EEC/ Vegetative Vigor EC25 Emergence Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.1680 1.4280 0.0280 3.96 62.22 33.68 528.89 0.19 4.12 Seed Emerg Monocot EC25 ( lb a. e./ acre) 0.0424 Seed Emerg Dicot EC25 ( lb a. e./ acre) 0.0027 Aerial,

Airblast, Spray Chemigation 0.2240 0.9800 0.1400 5.28 82.96 23.11 362.96 0.93 20.59 Veg Vigor Monocot EC25 ( lb a. e./ acre) 0.1507 Veg Vigor Dicot EC25 ( lb a. e./ acre) 0.0068 196 Terrestrial Plant EECs and Acute Listed RQs ( 8/ 8/ 01; version 1.0) Chemical: Dicamba sugarcane Input Values Application Rate ( lb a. e./ acre) 2.8 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02, or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC =

Sheet Runoff + Drift) Total Loading to Semi aquatic Areas ( EEC =

( Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01) ( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC05 or NOAEC Emergence RQs,

Semiaquatic areas RQ = EEC/ Seedling Emergence EC05 or NOAEC Drift RQs RQ =

EEC/ Vegetative Vigor EC05 or NOAEC Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.1680 1.4280 0.0280 5.25 76.36 44.63 649.09 0.22 7.00 Seed Emerg Monocot EC05 or NOAEC ( lb a. e./ acre) 0.032 Seed Emerg Dicot EC05 or NOAEC ( lb a. e./ acre) 0.0022 Aerial,

Airblast, Spray Chemigation 0.2240 0.9800 0.1400 7.00 101.82 30.63 445.45 1.08 35.00 Veg Vigor Monocot EC05 or NOAEC ( lbs a. e./ acre) 0.13 Veg Vigor Dicot EC05 or NOAEC ( lb a. e./ acre) 0.004 197 Terrestrial Plant EECs and Acute Non Listed RQs ( 8/ 8/ 01; version 1.0)) Chemical: Dicamba pasture, soybean, turf Input Values Application Rate ( lb a. e./ acre) 2 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02,

or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC = Sheet Runoff + Drift) Total Loading to Semiaquatic Areas ( EEC = Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01)

( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC25 Emergence RQs,

Semi aquatic Areas RQ =

EEC/ Seedling Emergence EC25 Drift RQs RQ = Drift EEC/ Vegetative Vigor EC25 Emergence Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.1200 1.0200 0.0200 2.83 44.44 24.06 377.78 0.13 2.94 Seed Emerg Monocot EC25 ( lb a. e./ acre) 0.0424 Seed Emerg Dicot EC25 ( lb a. e./ acre) 0.0027 Aerial,

Airblast, Spray Chemigation 0.1600 0.7000 0.1000 3.77 59.26 16.51 259.26 0.66 14.71 Veg Vigor Monocot EC25 ( lb a. e./ acre) 0.1507 Veg Vigor Dicot EC25 ( lb a. e./ acre) 0.0068 198 Terrestrial Plant EECs and Acute Listed RQs ( 8/ 8/ 01; version 1.0) Dicamba pasture, soybean, turf Input Values Application Rate ( lb a. e./ acre) 2 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02, or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC = Sheet Runoff +

Drift) Total Loading to Semi aquatic Areas ( EEC =

( Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01) ( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC05 or NOAEC Emergence RQs,

Semiaquatic areas RQ = EEC/ Seedling Emergence EC05 or NOAEC Drift RQs RQ =

EEC/ Vegetative Vigor EC05 or NOAEC Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.1200 1.0200 0.0200 3.75 54.55 31.88 463.64 0.15 5.00 Seed Emerg Monocot EC05 or NOAEC ( lb a. i./ acre) 0.032 Seed Emerg Dicot EC05 or NOAEC ( lb a. e./ acre) 0.0022 Aerial,

Airblast, Spray Chemigation 0.1600 0.7000 0.1000 5.00 72.73 21.88 318.18 0.77 25.00 Veg Vigor Monocot EC05 or NOAEC ( lbs a. e./ acre) 0.13 Veg Vigor Dicot EC05 or NOAEC ( lb a. e./ acre) 0.004 199 Terrestrial Plant EECs and Acute Non Listed RQs ( 8/ 8/ 01; version 1.0)) Chemical: wheat Input Values Application Rate ( lb a. e./ acre) 1 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02,

or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC = Sheet Runoff + Drift) Total Loading to Semiaquatic Areas ( EEC = Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01)

( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC25 Emergence RQs,

Semi aquatic Areas RQ =

EEC/ Seedling Emergence EC25 Drift RQs RQ = Drift EEC/ Vegetative Vigor EC25 Emergence Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.0600 0.5100 0.0100 1.42 22.22 12.03 188.89 0.07 1.47 Seed Emerg Monocot EC25 ( lb a. e./ acre) 0.0424 Seed Emerg Dicot EC25 ( lb a. e./ acre) 0.0027 Aerial,

Airblast, Spray Chemigatio n 0.0800 0.3500 0.0500 1.89 29.63 8.25 129.63 0.33 7.35 Veg Vigor Monocot EC25 ( lb a. e./ acre) 0.1507 Veg Vigor Dicot EC25 ( lb a. e./ acre) 0.0068 200 Terrestrial Plant EECs and Acute Listed RQs ( 8/ 8/ 01; version 1.0) Dicamba wheat Input Values Application Rate ( lb a. e./ acre) 1 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02, or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC =

Sheet Runoff + Drift) Total Loading to Semi aquatic Areas ( EEC =

( Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01) ( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC05 or NOAEC Emergence RQs,

Semiaquatic areas RQ = EEC/ Seedling Emergence EC05 or NOAEC Drift RQs RQ =

EEC/ Vegetative Vigor EC05 or NOAEC Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.0600 0.5100 0.0100 1.88 27.27 15.94 231.82 0.08 2.50 Seed Emerg Monocot EC05 or NOAEC ( lb a. i./ acre) 0.032 Seed Emerg Dicot EC05 or NOAEC ( lb a. e./ acre) 0.0022 Aerial,

Airblast, Spray Chemigation 0.0800 0.3500 0.0500 2.50 36.36 10.94 159.09 0.38 12.50 Veg Vigor Monocot EC05 or NOAEC ( lbs a. e./ acre) 0.13 Veg Vigor Dicot EC05 or NOAEC ( lb a. e./ acre) 0.004 201 Terrestrial Plant EECs and Acute Non Listed RQs ( 8/ 8/ 01; version 1.0) Chemical: Dicamba corn Input Values Application Rate ( lb a. e./ acre) 0.75 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02,

or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC = Sheet Runoff + Drift) Total Loading to Semiaquatic Areas ( EEC = Channelized Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01)

( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC25 Emergence RQs,

Semi aquatic Areas RQ =

EEC/ Seedling Emergence EC25 Drift RQs RQ = Drift EEC/ Vegetative Vigor EC25 Emergence Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.0450 0.3825 0.0075 1.06 16.67 9.02 141.67 0.05 1.10 Seed Emerg Monocot EC25 ( lb a. e./ acre) 0.0424 Seed Emerg Dicot EC25 ( lb a. e./ acre) 0.0027 Aerial,

Airblast, Spray Chemigatio n 0.0600 0.2625 0.0375 1.42 22.22 6.19 97.22 0.25 5.51 Veg Vigor Monocot EC25 ( lb a. e./ acre) 0.1507 Veg Vigor Dicot EC25 ( lb a. e./ acre) 0.0068 202 Terrestrial Plant EECs and Acute Listed RQs ( 8/ 8/ 01; version 1.0) Chemical: Dicamba corn Input Values Application Rate ( lb a. e./ acre) 0.75 Estimated Environmental Concentrations ( EECs) for NON GRANULAR formulation applications ( lbs a. e./ acre) Risk Quotients ( RQs) for NON GRANULAR formulation applications Runoff Value ( 0.01, 0.02, or 0.05 if chemical solubility < 10,

10 100, or > 100 ppm, respectively) 0.05 Application Method Total Loading to Adjacent Areas ( EEC =

Sheet Runoff + Drift) Total Loading to Semiaquatic Areas ( EEC =

( Channelize d Runoff +

Drift) DRIFT EEC ( for ground:

application rate x 0.01) ( for aerial: application rate x 0.05) Emergence RQs,

Adjacent Areas RQ =

EEC/ Seedling Emergence EC05 or NOAEC Emergence RQs,

Semiaquatic areas RQ = EEC/ Seedling Emergence EC05 or NOAEC Drift RQs RQ =

EEC/ Vegetative Vigor EC05 or NOAEC Minimum Incorporation Depth ( inches) 0 Monocot Dicot Monocot Dicot Monocot Dicot Ground Unincorp. 0.0450 0.3825 0.0075 1.41 20.45 11.95 173.86 0.06 1.88 Seed Emerg Monocot EC05 or NOAEC ( lb a. e./ acre) 0.032 Seed Emerg Dicot EC05 or NOAEC ( lb a. e./ acre) 0.0022 Aerial,

Airblast, Spray Chemigation 0.0600 0.2625 0.0375 1.88 27.27 8.20 119.32 0.29 9.38 Veg Vigor Monocot EC05 or NOAEC ( lbs a. e./ acre) 0.13 Veg Vigor Dicot EC05 or NOAEC ( lb a. e./ acre) 0.004 203 Appendix E: Data Requirements TABLE of Environmental Fate Data Requirements Guideli ne # Data Requirement MRID # ( test substance) Study Classification Is more data needed?

161 1 Hydrolysis 40335501 ( dicamba acid) Acceptable no 161 2 Photodegradation in Water 42774102 ( dicamba acid) Acceptable no 161 3 Photodegradation on Soil 42774103 ( dicamba acid) Acceptable no 161 4 Photodegradation in Air No study submitted no 162 1 Aerobic Soil Metabolism 43245207 ( dicamba aicd) Acceptable no 162 2 Anaerobic Soil Metabolism 43245208 ( dicamba acid) Acceptable no 162 3 Anaerobic Aquatic Metabolism 43245208 ( dicamba acid) Acceptable no 162 4 Aerobic Aquatic Metabolism 43758509 ( dicamba acid) Supplementa l no 163 1 Leaching Adsorption/ Desorptio n 42774101 ( dicamba acid) 43095301 ( dicamba acid) Acceptable Supplementa l no 163 2 Laboratory Volatility 41966602 ( K and DMA salts) Acceptable no 163 3 Field Volatility No study submitted 164 1 Terrestrial Field Dissipation 43361506 ( Na and DGA salts) 43361507 ( DGA salt) 43651405 ( DMA salt) 43651407 ( DGA salt) 43651408 ( Na salt) 42754101 ( K salt ) 42754102 ( K salt) Supplementa l Supplementa l Supplementa l Supplementa l Supplementa l Supplementa l Supplementa l no 164 2 Aquatic Field Dissipation No study submitted TABLE of Environmental Fate Data Requirements Guideli ne # Data Requirement MRID # ( test substance) Study Classification Is more data needed?

204 164 3 Forestry Dissipation No study submitted 165 4 Accumulation in Fish N/ A waived 165 5 Accumulationaquatic non target No study submitted 166 1 Ground Water small prospective No study submitted 166 2 Groundwater  small retrospective No study submitted 201 1 Droplet Size Spectrum No study submitted 202 1 Drift Field Evaluation No study submitted TABLE of Ecological Toxicity Data Requirements Guideline # Data Requirement MRID # Classification Is more data needed?

71 1 Avian acute oral LD50 Dicamba acid ( bobwhite quail) ( mallard duck)

Dimethylamine salt of dicamba ( mallard duck) ( mallard duck)

Potassium salt of dicamba ( bobwhite quail)

Diglycoamine salt of dicamba ( bobwhite quail) 42774105 42774106 00046180 00073275 261466 ACC26386 3 Acceptable Acceptable Supplemental Supplemental Supplemental Acceptable No note: MRID nos. 00046180, 00073275, and 261466 are classified as Supplemental because testing was done with a formulation rather than the technical grade of the active ingredient Guideline # Data Requirement MRID # Classification Is more data needed?

205 71 2 Avian subacute dietary LC50 Dicamba acid ( bobwhite quail) ( bobwhite quail) ( mallard duck) ( mallard duck) ( mallard duck)

Dimethylamine salt of dicamba ( bobwhite quail) ( bobwhite quail) ( mallard duck) ( mallard duck)

Sodium salt of dicamba ( bobwhite quail) ( bobwhite quail) ( mallard duck)

Potassium salt of dicamba ( bobwhite quail) ( mallard duck)

Diglycoamine salt of dicamba ( bobwhite quail) ( mallard duck) 0025391 0023690 TOUDIC07 0025392 0025317 00046182 00034693 00046181 00022527 00233292 0025328 00030102 261465 261466 ACC263863 ACC263863 Acceptable Supplemental Acceptable Supplemental Supplemental Supplemental Supplemental Supplemental Supplemental Acceptable Supplemental Supplemental Supplemental Supplemental Acceptable Acceptable No note: MRID nos. 0023690, 0025392, 0025317, 00046182, 00034693, 00046181, 00022527, 0025328 00030102, 261465, and 261466 are classified as Supplemental because testing was done with a formulation rather than the technical grade of the active ingredient 71 4 Avian reproduction Dicamba acid ( bobwhite quail) ( mallard duck) 43814004 43814003 Acceptable Acceptable No Guideline # Data Requirement MRID # Classification Is more data needed?

206 72 1 Freshwater fish acute LC50 Dicamba acid ( rainbow trout) ( rainbow trout) ( rainbow trout) ( bluegill) ( bluegill)

Dimethylamine salt of dicamba ( rainbow trout) ( rainbow trout) ( bluegill) ( bluegill)

Sodium salt of dicamba ( rainbow trout) ( bluegill)

Potassium salt of dicamba ( bluegill)

Diglycoamine salt of dicamba ( rainbow trout) ( bluegill) 0041272 4009001 00036915 0034703 40098001 263000 00046184 00046183 00022530 00029623 00022539 258983 ACC26386 3 ACC26386 3 Acceptable Acceptable Supplemental Acceptable Supplemental Acceptable Supplemental Supplemental Supplemental Supplemental Supplemental Supplemental Acceptable Acceptable No note: MRID nos. 00036915, 00046184, 00046183, 00022530, 00029623, 00022539, and 258983 are classified as Supplemental because testing was done with a formulation rather than the technical grade of the active ingredient; MRID no. 00046184 is classified as Supplemental because an LC50 was not established nor shown to exceed 100 ppm 72 2 Freshwater invertebrate acute EC50 Dicamba acid ( daphnia)

( sowbug) ( scud)

Dimethylamine salt of dicamba ( daphnia)

Sodium salt of dicamba ( daphnia)

Potassium salt of dicamba ( daphnia)

Diglycoamine salt of dicamba ( daphnia) 0052126 40094602 40098001 40098001 00028283 00233292 258983 ACC26386 3 Acceptable Supplemental Supplemental Supplemental Supplemental Acceptable Supplemental Supplemental No Guideline # Data Requirement MRID # Classification Is more data needed?

207 note: MRID nos. 40098001, 40098001, 00028283, 00233292, 258983, and ACC263863 are classified as Supplemental because testing was done with a formulation rather than the technical grade of the active ingredient 72 3a Estuarine/ marine fish acute LC50 Dicamba acid ( sheepshead minnow) 0025390 Acceptable No 72 3b Estuarine/ marine invertebrate acute EC50 Dicamba acid ( grass shrimp) ( fiddler crab) ( glass shrimp) ( eastern oyster) 0034702 0034704 40098001 40228401 Acceptable Acceptable Supplemental Supplemental No note: MRID no. 40098001 is classified as Supplemental because the test species is not a guideline test species; MRID no. 40228401 is classified as Supplemental because an EC50 was not established nor shown to exceed 100 ppm 72 4a Freshwater fish early life stage ( rainbow trout or fathead minnow) N/ A No 72 4b Freshwater invertebrate life cycle ( daphnia) N/ A No 72 4c Estuarine/ marine life cycle ( mysid) N/ A No 72 5 Freshwater fish life cycle ( fathead minnow) N/ A No 72 7 Aquatic Field Study N/ A No 81 1 Mammalian acute oral LD50 Dicamba acid ( rat) 00078444 Acceptable No 82 1 Mammalian subchronic feeding Dicamba acid ( rat) 00128093 Acceptable No 83 3 Mammalian Developmental Dicamba acid ( rat) ( rabbit) 00084024 42429401 Acceptable Acceptable No 83 4 Mammalian Reproduction Dicamba acid ( rat) 43137101 Acceptable No Guideline # Data Requirement MRID # Classification Is more data needed?

208 122 2 Aquatic plant ( algae) Dicamba acid Selenastrum capricornutum Skeletonema costatum Anabaena flos aquae Navicula pelliculosa 42774107 42774110 42774109 42774108 Acceptable Acceptable Acceptable Acceptable No 123 1( a) Seedling Emergence  Tier II Dicamba acid ( TGAI) Dicamba acid ( TEP) Dimethylamine salt ( TEP) Diglycoamine salt ( TEP) Isopropylamine salt ( TEP) Sodium salt ( TEP) Potassium salt ( TEP) 42846301 Supplemental No Yes Yes Yes Yes Yes Yes Yes note: MRID no. 42846301 is Supplemental because an NOAEC was not determined for the most sensitive endpoint; Seedling Emergence studies are required for all forms of dicamba and its salts; each test can be limited to the five most sensitive species determined in MRID no. 42846301 ( soybean, onion, turnip, tomato, and lettuce)

123 1( b) Vegetative Vigor  Tier II Dicamba acid ( TGAI) Dicamba acid ( TEP) Dimethylamine salt ( TEP) Diglycoamine salt ( TEP) Isopropylamine salt ( TEP) Sodium salt ( TEP) Potassium salt ( TEP) 42846301 Supplemental No Yes Yes Yes Yes Yes Yes Yes note: MRID no. 42846301 is Supplemental because an NOAEC was not determined for the most sensitive endpoint; Vegetative Vigor studies are required for all forms of dicamba and its salts; each test can be limited to the five most sensitive species determined in MRID no. 42846301 ( soybean, onion, turnip, tomato, and lettuce)

123 2 Aquatic plant acute EC50 Dicamba acid Lemna gibba 42774111 Acceptable No 141 1 Acute honey bee contact LD50 00036935 Acceptable No 141 2 Honey Bee Residue on Foliage No 141 5 Honey Bee Field Testing for Pollinators No 209 Appendix F: Ecological Effects Summaries 71 1 Avian Acute Oral Dicamba acid Bobwhite Quail. MRID 42774105 ( Acceptable). In a 14 day oral gavage study, dicamba acid was determined to be moderately toxic to bobwhite quail with an LD 50 of 188 mg ae/ kg. The NOEL was determined to be 13.6 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

Mallard Duck. MRID 42774106 ( Acceptable). In a 14 day oral gavage study, dicamba acid was determined to be slightly toxic to mallard ducks with an LD 50 of 1373 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

Dimethylamine salt of dicamba Mallard Duck. MRID 0046180 ( Supplemental). In an 14 day oral gavage study, dimethylamine salt of dicamba was determined to be practically non toxic to mallard ducks with an LC 50 > 2452 ppm ae. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Mallard Duck. MRID 0073275 ( Supplemental). In an 14 day oral gavage study, dimethylamine salt of dicamba was determined to be practically non toxic to mallard ducklings with an LC 50 > 2452 ppm ae. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Potassium salt of Dicamba Bobwhite Quail. MRID 261466 ( Supplemental). In a 14 day oral gavage study, potassium salt of dicamba was determined to be moderately toxic to bobwhite quail with an LD 50 of 618 mg ae/ kg. The NOEL was determined to be < 67 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Diglycoamine salt of dicamba Bobwhite Quail. MRID ACC263863 ( Acceptable). In a 14 day oral gavage study, diglycoamine salt of dicamba was determined to be moderately toxic to bobwhite quail with an LD 50 of 262 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

71 2 Avian Subacute Dietary Dicamba acid Bobwhite Quail. MRID 0025391 ( Acceptable). In a 8 day dietary study, dicamba acid was determined to be practically non toxic to bobwhite quail with an LC 50 of > 10000 mg ae/ kg. The NOEL was determined to be 1000 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

Bobwhite Quail. MRID 0023690 ( Supplemental). In a 8 day dietary study, dicamba acid was 210 determined to be practically non toxic to bobwhite quail with an LC 50 of > 10000 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Mallard Duck. MRID TOUDIC07 ( Acceptable). In a 8 day dietary study, dicamba acid was determined to be practically non toxic to mallard ducks with an LC 50 of > 10000 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

Mallard Duck. MRID 0025392 ( Supplemental). In a 8 day dietary study, dicamba acid was determined to be practically non toxic to mallard ducks with an LD 50 of 2009 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Mallard Duck. MRID 0025317 ( Supplemental). In a 8 day dietary study, dicamba acid was determined to be practically non toxic to mallard ducks with an LC 50 of > 10000 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Dimethylamine salt of dicamba Bobwhite Quail. MRID 0046182 ( Supplemental). In a 8 day dietary study, dimethylamine salt of dicamba was determined to be practically non toxic to bobwhite quail with an LC 50 of > 5490 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Bobwhite Quail. MRID 0034693 ( Supplemental). In a 8 day dietary study, dimethylamine salt of dicamba was determined to be slightly toxic to bobwhite quail with an LC 50 of > 4533 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Mallard Duck. MRID 0046181 ( Supplemental). In a 8 day dietary study, dimethylamine salt of dicamba was determined to be practically non toxic to mallard ducks with an LC 50 of > 5490 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Mallard Duck. MRID 0022527 ( Supplemental). In a 8 day dietary study, dimethylamine salt of dicamba was determined to be practically non toxic to mallard ducks with an LC 50 of > 4533 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Sodium salt of dicamba Bobwhite Quail. MRID 233292 ( Acceptable). In a 8 day dietary study, sodium salt of dicamba was determined to be practically non toxic to bobwhite quail with an LC 50 of > 9090 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

Bobwhite Quail. MRID 0025328 ( Supplemental). In a 8 day dietary study, sodium salt of dicamba was determined to be practically non toxic to bobwhite quail with an LC 50 of > 9090 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed. 211 Mallard Duck. MRID 00030102 ( Supplemental). In a 8 day dietary study, sodium salt of dicamba was determined to be practically non toxic to mallard ducks with an LC 50 of > 9090 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Potassium salt of dicamba Mallard Duck. MRID 00261466 ( Supplemental). In a 8 day dietary study, potassium salt of dicamba was determined to be practically non toxic to mallard ducks with an LC 50 of 4794 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Bobwhite Quail. MRID 00261465 ( Supplemental). In a 8 day dietary study, potassium salt of dicamba was determined to be practically non toxic to bobwhite quail with an LC 50 of 4794 mg ae/ kg. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Diglycoamine salt of dicamba Bobwhite Quail. MRID ACC263863 ( Acceptable). In a 8 day dietary study, diglycoamine salt of dicamba was determined to be practically non toxic to bobwhite quail with an LC 50 of > 1522 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

Mallard Duck. MRID ACC263863 ( Acceptable). In a 8 day dietary study, diglycoamine salt of dicamba was determined to be practically non toxic to mallard ducks with an LC 50 of > 1522 mg ae/ kg. The study is scientifically sound and follows the guideline protocols.

71 4 Avian Reproduction Dicamba acid Bobwhite Quail. MRID 43814004 ( Acceptable). In a one generation reproductive toxicity study, dicamba acid produced no evidence of treatment related adverse effects on adult or reproductive parameters with an NOEC of > 1390 ppm. The study is scientifically sound and generally followed guideline protocols.

Mallard Duck. MRID 43814003 ( Acceptable). In a one generation reproductive toxicity study, dicamba acid produced reduction in hatchability with an LOEC of 1390 ppm ae ( NOEC 695 ppm ae). The study is scientifically sound and followed guideline protocols.

72 1 Freshwater Fish Acute Dicamba acid Rainbow Trout. MRID 0041272 ( Acceptable). In a 96 hour acute test, dicamba acid was determined to be practically non toxic to rainbow trout with an LC 50 of 135.4 mg/ L. The study is scientifically sound and meets guideline protocols.

Rainbow Trout. MRID 40098001 ( Acceptable). In a 96 hour acute test, dicamba acid was 212 determined to be slightly toxic to rainbow trout with an LC 50 of 28 mg/ L. The study is scientifically sound and meets guideline protocols Rainbow Trout. MRID 0036915 ( Supplemental). In a 96 hour acute test, dicamba acid was determined to be practically non toxic to rainbow trout with an LC 50 of 153 mg/ L. The NOEL was determined to be 49 mg/ L. The study is scientifically sound and follows the guideline protocols.

Bluegill Sunfish. MRID 0034703 ( Acceptable). In a 96 hour acute test, dicamba acid was determined to be practically non toxic to bluegill sunfish with an LC 50 of 135.3 mg/ L. The study is scientifically sound and meets guideline protocols.

Bluegill Sunfish. MRID 40098001 ( Supplemental). In a 96 hour acute test, dicamba acid was determined to be slightly toxic to bluegill sunfish with an LC 50 of > 50 mg/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Dimethylamine salt of dicamba Rainbow Trout. MRID 00263000 ( Acceptable). In a 96 hour acute test, dimethylamine salt of dicamba was determined to be practically non toxic to rainbow trout with an LC 50 of > 977 mg ae/ L. The study is scientifically sound and meets guideline protocols.

Rainbow Trout. MRID 0046184 ( Supplemental). In a 96 hour acute test, dimethylamine salt of dicamba was determined to be practically non toxic to rainbow trout with an LC 50 of > 977 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Bluegill Sunfish. MRID 0046183 ( Supplemental). In a 96 hour acute test, dimethylamine salt of dicamba was determined to be practically non toxic to bluegill sunfish with an LC 50 of > 977 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Bluegill Sunfish. MRID 0022530 ( Supplemental). In a 96 hour acute test, dimethylamine salt of dicamba acid determined to be practically non toxic to bluegill sunfish with an LC 50 of > 977 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Sodium salt of dicamba Rainbow Trout. MRID 0029623 ( Supplemental). In a 96 hour acute test, sodium salt of dicamba was determined to be practically non toxic to rainbow trout with an LC 50 of 507 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Bluegill Sunfish. MRID 0022539 ( Acceptable). In a 96 hour acute test, sodium salt of dicamba was determined to be practically non toxic to bluegill sunfish with an LC 50 of 642 mg ae/ L. The study is scientifically sound and meets guideline protocols. 213 Potassium salt of dicamba Bluegill Sunfish. MRID 258983 ( Supplemental). In a 96 hour acute test, potassium salt of dicamba was determined to be practically non toxic to bluegill sunfish with an LC 50 of 196 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Diglycoamine salt of dicamba Rainbow Trout. MRID ACC263863 ( Acceptable). In a 96 hour acute test, diglycoamine salt of dicamba was determined to be practically non toxic to rainbow trout with an LC 50 of > 270.8 mg ae/ L. The study is scientifically sound and meets guideline protocols.

Bluegill Sunfish. MRID ACC263863 ( Acceptable). In a 96 hour acute test, diglycoamine salt of dicamba was determined to be practically non toxic to bluegill sunfish with an LC 50 of > 270.8 mg ae/ L. The study is scientifically sound and meets guideline protocols.

72 2 Freshwater Invertebrate Acute Dicamba acid Daphnia. MRID 0052126 ( Acceptable). In a 48 hour acute test, dicamba acid was determined to be practically non toxic to daphnids with an EC 50 of 110.7 mg/ L. The study is scientifically sound and meets guideline protocols.

Daphnia. MRID 40094602 ( Supplemental). In a 48 hour acute test, dicamba acid was determined to be practically non toxic to daphnids with an EC 50 of > 100 mg/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Sowbug. MRID 40098001 ( Supplemental). In a 96 hour acute test, dicamba acid was determined to be practically non toxic to sowbug with an LC 50 of > 100 mg/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Scud. MRID 40098001 ( Supplemental). In a 96 hour acute test, dicamba acid was determined to be practically non toxic to scuds with an LC 50 of > 100 mg/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Dimethylamine salt of dicamba Daphnia. MRID 0028283 ( Supplemental). In a 48 hour acute test, dicamba ( DMA) was determined to be practically non toxic to daphnids with an EC 50 of 1563 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Sodium salt of dicamba Daphnia. MRID 00233292 ( Acceptable). In a 48 hour acute test, sodium salt of dicamba was determined to be slightly toxic to water fleas with an EC 50 of 34.6 mg ae/ L. The study is scientifically sound and meets guideline protocols. 214 Potassium salt of dicamba Daphnia. MRID 258983 ( Supplemental). In a 48 hour acute test, potassium salt of dicamba was determined to be slightly toxic to water fleas with an EC 50 of 639.8 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

Diglycoamine salt of dicamba Daphnia. MRID ACC263863 ( Supplemental). In a 48 hour acute test, diglycoamine salt of dicamba was determined to be practically non toxic to water fleas with an EC 50 of > 270.8 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

72 3a Estuarine/ Marine Fish Acute Dicamba acid Sheepshead Minnow. MRID 0025390 ( Acceptable). In a 96 hour flow through test, dicamba acid was determined to be practically non toxic to sheepshead minnow with an LC 50 of > 180 mg ae/ L. The NOEL was determined to be 100 mg ai/ L. The study is scientifically sound and meets guideline protocols.

72 3b Estuarine/ Marine Invertebrate Acute Dicamba acid Grass Shrimp. MRID 0034702 ( Acceptable). In a 96 hour flow through test, Dicamba acid was determined to be practically non toxic to grass shrimp with an LC 50 of > 132 mg ae/ L. The NOEL was determined to be 56 mg ai/ L. The study is scientifically sound and meets guideline protocols.

Fiddler Crab. MRID 0034704 ( Acceptable). In a 96 hour flow through test, dicamba acid was determined to be practically non toxic to fiddler crabs with an LC 50 of > 173 mg ae/ L. The study is scientifically sound and meets guideline protocols.

Glass Shrimp. MRID 40098001 ( Supplemental). In a 96 hour acute test, dicamba acid was determined to be slightly toxic to glass shrimp with an LC 50 of > 56 mg/ L. The study is scientifically sound and meets guideline protocols.

Eastern Oyster. MRID 40228401 ( Supplemental). In a 48 hour acute test, dicamba acid was determined to be moderately toxic to the eastern oyster with an EC 50 of > 1.0 mg ae/ L. The study is scientifically sound; however, some guideline protocols were not adequately followed.

72 4a Freshwater Fish Early Life Stage No studies available 215 72 4b Freshwater Invertebrate Life Cycle No studies available 72 5 Freshwater Fish Life Cycle No studies available 81 1 Acute Mammalian Oral Dicamba acid Rat. MRID 00078444 ( Acceptable). In an acute oral study, dicamba acid was determined to have a low toxicity ( Toxicity Category III) to rats with an LD 50 2740 mg/ kg/ day. The study is scientifically sound and meets guideline protocols.

81 2 Mammalian Subchronic Feeding Dicamba acid Rat. MRID 00128093 ( Acceptable). In a subchronic feeding study, dicamba acid was determined to have a low toxicity to rats with NOEL/ LOAEL of 500/ 1000 mg ai/ kg/ day. The study is scientifically sound and meets guideline protocols.

83 3 Mammalian Developmental Dicamba acid Rat. MRID 00084024 ( Acceptable). In a developmental study, dicamba acid showed maternal toxicity impacts of mortality, clinical signs of neurotoxicity, decreased body weight gain and food consumption to rats with a NOAEL of 160 and LOAEL of 1000 mg ai/ kg/ day. The study found no treatment related fetal gross, skeletal, or visceral anomalies associated with developmental toxicity with a NOAEL > 400 mg ai/ kg/ day. The study is scientifically sound and meets guideline protocols.

Rabbit. MRID 42429401 ( Acceptable). In a 2 generation teratology study, dicamba acid produced treatment related effects for maternal endpoints of abortion, clinical signs of toxicity, decreased body weight gain and food consumption with a NOAEL of 30 and LOAEL of 150 mg ai/ kg/ day. Developmental associated impacts included irregular ossification of internasal bones with a NOAEL of 150 and LOAEL of 300 mg ai/ kg/ day. The study is scientifically sound and meets guideline protocols.

83 4 Mammalian Reproduction Dicamba acid Rat. MRID 43137101 ( Acceptable). In a developmental study, dicamba acid showed systemic, offspring, and developmental endpoint toxicity. Systematic toxicity included clinical signs of 216 neurotoxicity in dams during lactation and significantly increased relative liver to body weight ratios with NOAELs of 122 ( males)/ 136 ( females) and LOAELs of 419 ( males) and 450 ( females) mg ai/ kg/ day. Offspring toxicity included significantly decreased pup growth with a NOAEL of 45 and LOAEL of 136 mg ai/ kg/ day. Developmental endpoints effected included decreased pup growth and delayed sexual maturation in F1 males with a NOAEL of 45 and a LOAEL of 136 my ai/ kg/ day. The study is scientifically sound and meets guideline protocols.

122 2 Aquatic Plant Nonvascular Dicamba acid Green algae. MRID 42774107 ( Acceptable). In a Tier II toxicity test with Selenastrum capricornutum, the 5 day EC 50 for cell density was > 3.7 ppm ae ( NOEC = 3.7 mg ae/ L). The study is scientifically sound and meets the guideline protocols.

Marine diatom. MRID 42774110 ( Acceptable). In a Tier II toxicity test with marine diatoms ( Skeletonema costatum), the5 day EC 50 for cell density was 0.493 mg ae/ L ( NOEC = 0.011 mg ae/ L). The study is scientifically sound and meets the guideline protocols.

Blue green algae. MRID 42774109 ( Acceptable). In a Tier II toxicity test with Anabaena flosaquae the 5 day EC 50 for cell density was 0.061 mg ae/ L ( NOEC = 0.005 mg ae/ L). The study is scientifically sound and meets the guideline protocols.

Freshwater diatom. MRID 42774108 ( Acceptable). In a Tier II toxicity test with freshwater diatoms the EC 50 for cell density was 2.3 mg ae/ L ( NOEC = 0.5 mg ae/ L). The study is scientifically sound and meets the guideline protocols.

123 1( a) Seedling Emergence  Tier II Dicamba acid Monocots ( 4 species) and Dicots ( 6 species). MRID 42846301 ( Supplemental). In a Tier II seedling emergence study, the most sensitive monocot tested was onion ( EC 25 0.004 lb ae/ A, NOEC < 0.032 lb ae/ A; shoot weight). The most sensitive dicot tested was soybean ( EC 25 0.0027 lb ae/ A, NOEC < 0.0022 lb ae/ A; shoot weight). Due to deficiencies in the study, the guideline requirements are only partially fulfilled; Acceptable data endpoints were used in the risk assessment..

123 1( b) Vegetative Vigor  Tier II Dicamba acid Monocots ( 4 species) and Dicots ( 6 species). MRID42846301 ( Supplemental). In a Tier II vegetative vigor study, the most sensitive monocot tested was onion ( EC 25 0.062 lb ae/ A, NOEC < 0.13 lb ae/ A; root weight). The most sensitive dicot tested was soybean ( EC 25 0.0065 lb ae/ A, NOEC < 0.0040 lb ae/ A; shoot height). Due to deficiencies in the study, the guideline requirements are partially fulfilled; Acceptable data endpoints were used in the risk assessment. 217 123 2 Aquatic Plant Vascular Dicamba acid Duckweed. MRID 42774111 ( Acceptable). In a 14 day Tier II Toxicity Test with duckweed, the EC 50 for frond production was > 3.25 mg ae/ L and the NOEC was 0.20 mg ae/ L. The study is scientifically sound and meets guideline protocols.

141 5 Acute Honey Bee Contact Dicamba acid Honey Bee. MRID 00036935 ( Acceptable). In a 48 hour acute contact study with the honey bee, Dicamba acid was determined to be practically non toxic to honey bees and the LD 50 was > 90.65 µ g ae/ bee. The study is scientifically sound and meets guideline protocols.