NATIONAL SOILS MONITORING PROGRAM FOR PESTICIDE RESIDUES FY 1969 JULY 1, 1972 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY Washington, D. C. ------- NATIONAL SOILS MONITORING PROGRAM FOR PESTICIDE RESIDUES-FY 1969 _ * G. B. Wiersma , H. Tai2, and P. F. Sand' ABSTRACT This report is a summary of the results of the National Soils Monitoring Program, an integral part of the National Pesticide Monitoring Program (NPMP). It reports pesticide residues in cropland soil for 43 states and noncropland soil for 11 of these. Tables for each state give arithmetic means, range, number of samples collected and percent of sites with detectable residues. In addition, for selected pesticides and various states and state groupings, a frequen- cy distribution of pesticide residues is presented. Use records for the year of sampling are summarized by the pesticide used, the percent of farms using it, the average application rate and the average amount applied. Comparisons are made between residue levels in different land use areas. The tons of DDT, aldrin and dieldrin residues present in cropland soil are estimated. 1 Pesticides Regulation Division, Office of Pesticide Programs, Environmental Protection Agency, Washington, D.C. 2 Pesticides Regulation Division, Office of Pesticide Programs, Environmental Protection Agency, Gulfport, Mississippi. 3 Plant Protection and Quarantine Programs, Animal and Plant Health Inspection Service, U.S. Department of Agriculture, Hyattsville, Maryland. ------- NATIONAL SOILS MONITORING PROGRAM FOR PESTICIDE RESIDUES—FY 1969 1 .2 3 G. B. Wiersma , H. Tai , and P. F. Sand ABSTRACT This report is a summary of the results of the National Soils Monitoring Program, an integral part of the National Pesticide Monitoring Program (NPMP). It reports pesticide residues in cropland soil for 43 states and noncropland soil for 11 of these. Tables for each state give arithmetic means, range, number of samples collected and percent of sites with detectable residues. In addition, for selected pesticides and various states and state groupings, a frequen- cy distribution of pesticide residues is presented. Use records for the year of sampling are summarized by the pesticide used, the percent of farms using it, the average application rate and the average amount applied. Comparisons are made between residue levels in different land use areas. The tons of DDT, aidrin and dieldrin residues present in cropland soil are estimated. 1 Pesticides Regulation Division, Office of Pesticide Programs, Environmental Protection Agency, Washington, D.C. 2 Pesticides Regulation Division, Office of Pesticide Programs, Environmental Protection Agency, Gulfport, Mississippi. 3 Plant Protection and Quarantine Programs, Animal and Plant Health Inspection Service, U.S. Department of Agriculture, Hyattsville, Maryland. ------- 2. INTRODUCTION The National Soils Monitoring Program is an integral part of the National Pesticide Monitoring Program (NPMP). The NPMP was initiated as a result 0 f the recommendations made by the President’s Science Advisory Committee report of 1964, entitled “Use of Pesticides”. The committee recommended that the appropriate Federal agencies “develop a continuing network to monitor residue levels in air, water, soil, man, wildlife, and fish” (1}. The objectives of the NPMP are to determine levels and trends of pesticides in the various components of the environ- ment (2). This will result in the establishment of baseline or background levels of pesticide residues which in turn can be used as a basis for comparison of subsequently identified pesticide residue levels in an environmental component. The NPMP (2) lists five bases for concern to be used in evaluating pesticide residue levels. They are: 1. Any concentration of a pesticide known to be poten- tially harmful 2. Increasing trends 3. Exceeding standards (where they exist) 4. Recognition of adverse effects on humans 5. Erratic variability 1 1 A statistically oriented observation that is potentially conunon to each stratum sampled. ------- 3. The results of this study meet the first objective of the NPMP by establishing a baseline of pesticide residues in cropland soils at a particular point in time. Subsequent soil sampling will enable us to meet the second objective. The present data and all future data will be reviewed bearing in mind the five bases of concern outlined above. SAMPLING PROCEDURES & METHODS In general, techniques involved in this study were the same as those employed by Wiersma etal. (3). In FY 1969 cropland soil was sampled in all states except Alaska, Hawaii, Kansas, Minnesota, Montana, Oregon and Texas. Noncropland was sampled in Arizona, Georgia, Idaho, Iowa, Maine, Maryland, Nebraska, Virginia, Washington, West Virginia and Wyoming. Samples collected in the year of the study included both soil and crop. Only those crops that were mature and/or ready for harvest at time of collection were sampled. ANALYTICAL PROCEDURES ORGANOCHLORINE AND ORGANOPHOSPI-IOROUS COMPOUNDS 1. Preparation of sample A subsample of 300 g wet weight of soil was placed in a 2-quart fruit jar with 600 ml of 3:1 hexane-isopropanol solvent. The jars were sealed and rotated for 4 hours. After rotation, the soil was allowed to settle and 200 ml of the extract solution was filtered into a 500 ml separatory funnel. ------- 4. Isopropanol was removed with two washings of distilled water. The remaining solution was then filtered through a funnel containing glass wool and anhydrous sodium sulfate (Na 2 SO 4 ). Further cleanup was normally not required before analysis. 2. Gas-liquid chromatography Analyses were performed on gas chromatographs equipped with tritium foil electron affinity detectors for organochlorine compounds and thermionic or flame photometric detectors for organophosphorous compounds. A dual column system employing polar and nonpolar columns was utilized to identify and confirm pesticides. Instrument parameters were as follows: (a) Column: glass 6 mm o.d. x 4 m i.d., 183 cm long, packed with one of the following: 3% DC—200 on 100/120 mesh Gas-Chrom Q 9% QF-l on 100/120 mesh Gas-Chrom Q (b) Carrier gas: 5% methane-argon at a flow rate of 8 mi/mm. (c) Temperature: Detector: 200°C Injection Port: 250°C Column QF-l: 166°C Column DC-200: 170-175°C ------- 5. When necessary, confirmation of residues was made by thin- layer chromatography, or p—values. The lower limit of detection is 0.01 ppm. The data are corrected for recovery. The average recovery rate for all pesticides was 100% plus or minus 10%. All residue data are also corrected to dry weight basis. ATRAZINE 1. Preparation of sample After a 4-hour Soxhiet extraction of a 50 g subsample of soil with 25 ml of water and 300 ml of methanol, the sample extract was transferred to a 1—liter separatory funnel and 200 ml of water added. The sample extract was partitioned three times with a portion of 150 ml of freon 113 for each partitioning. The freon 113 fractions were combined and concentrated to incipient dryness. The sample was then dissolved in hexane, adjusted to a 5 ml volume and injected into a gas—liquid chromatograph. 2. Gas—liquid chromatography Thermionic flame detector with rubidium sulfate coating on a helix coil was used. Instrument parameters were as follows: (a) Column: glass 6 nm o.d. x 4 m i.d., 183 cm long, packed with 3% Versamid 900 on 100/1 20 mesh Gas-Chrom Q (b) Carrier gas: helium (c) Detector fuel gas: oxygen (200-300 mi/mm.), hydrogen (20-30 ml/rnin.) ------- 6. (d) Temperature: Detector: 240°C Injection Port: 240°C Column: 240°C Confirmation was made using a DC-200 column at 180°C and a Coulson detector (reductive mode) at the following temperature settings: Pyrolysis tube: 850 0 C Transfer line: 220°C Block: 220°C 2,4-D Analyses were made following the procedure developed by Woodham (4). The analytical method involved a diethyl ether extraction of acidified soil, an alkali wash to remove interfering substances, and an esterification procedure using 10% boron trichioride in 2-chioroethanol reagent. The 2-chioroethyl ester of 2,4-D was then analyzed by gas chroma- tography.. ARSEN IC Arsenic was determined by atomic absorption spectropho- tometry. The soil sample was first extracted with 9.6N hydrochloric acid (HCL) and reduced to trivalent arsenic with stannous chloride. The trivalent arsenic was partitioned from HCL solution to benzene, then further partitioned into water for the absorption measurement. A Perkin-Elmer Model ------- 7. 303 instrument was used, absorbance being measured with an 0 arsenic lamp at 1972 A with argon as an aspirant to an air- hydrogen flame. Recovery value for arsenic averaged 50%. RESULTS The data in this report are for soils only, and are presented in the tables for all states sampled in the study; The data are further divided between cropland and noncropland. Caution should be exercised when interpreting the arithmetic means presented in the tables. Pesticide residue data are not normally distributed and the arithmetic means for pesticide residues tend to be greater than the corresponding median. Therefore, they cannot be considered an indication of the central tendency of the data. Information accompanying the arithmetic means in this report such as the percent of occurrence, range and number of observations can aid in evaluating the arithmetic mean. RESIDUES-ALL STATES Soil residues are summarized in a variety of ways. They include arithmetic means, the percent of times a detectable residue was found and the range of detected residues. The residue summaries for cropland for all 43 states are presented in Table 1. The means given are arithmetic. The lower limit of sensitivity, as stated earlier, is 0.01 ppm, and this was used ------- 8. to calculate the percent of times a detectable residue was found. DDTR is a compilation of all the members of the DDT group. Elemental arsenic residues were found most frequently, with a percent of occurrence of 99.3 and a mean level of 6.4 ppm. It is probable that the majority of this arsenic was from natural sources, although cultural sources cannot be ruled out at this time. The most widely distributed pesticide was dieldrin, with 27.8% of the samples having detectable residues. It was followed clOsely by the total DDT residues (DDTR). Aldrin was found in 10.9% of the samples and chiordane in 8.7% of the samples. The highest mean residue was DDTR, with 0.31 ppm found in cropland soils. With the exception of individual members of the DOT group, the other pesticides had average residues ranging from below the limits of sensitivity to 0.07 ppm. The figures for atrazine, 2,4-0 and the organophosphates (Table 1) are not truly comparable with those generated for the chlorinated hydrocarbons or arsenic, because analyses for atrazine and 2,4-D were made only when the use records indicated they had been applied. Analyses for organophosphates were made on only 66 of the 1729 samples. With this in mind, note that ethyl parathion was detected 10.6% of the time, with a mean residue of 0.06 ppm. Malathion and diazinon were each detected 3.0% of the time with mean residue levels from below the limits of sensitivity to 0.01 ppm. ------- 9. One-hundred--eighty—eight chemical analyses were made for 2,4 —D and the other chioropherioxy herbicides. 2,4—0 was the only one detected, and it was found in 1.6% of the samples with a mean pesticide level less than 0.01 ppm. Atrazine was detected in 14.1% of the samples with a mean residue level of 0.01 ppm. This herbicide had the highest mean residue of the herbicides detected. Trifluralin was detected in 3.5% of the samples with a mean residue level of less than 0.01 ppm. The residues found in noncropland soils for the 11 previously listed states are presented in Table 2. The mean arsenic residue was 5.0 ppm occurring in 98.5% of the samples. DDTR was detected in 16.1% of the noncropland soils. ODTR residues ranged from 0.01 to 0.62 ppm with a mean residue level of 0.01 ppm. With the exception of members of the DOT group, dieldrin was the most widely distributed pesticide, occurring in 4.0% of the samples witri residues ranging between 0.01 to 0.09 ppm and a mean residue level less than the detectable limits of the chemical assay. It is possible to estimate the total amount of certain pesticides present in cropland soil. This has been done for dieldrin, aidrin and DDTR, three of the most commonly occurring pesticide residues. A weighted mean was calculated using the individual state averages. The data were transformed using a log (X+.Ol) transformation and the geometric mean and 95% confidence intervals were calculated. ------- 10. Since soil cores were 3 inches deep, and an acre of soil with this depth weighs approximately one million pounds, residue figures in parts per million can be directly converted to pounds per acre. Total acres in crops were obtained from “Agricultural Statistics 1970” (5). Figures for acreage used to estimate the amounts of pesticides shown in Table 3 were for the 48 coterminous states and included all cropland used for crops or cropland idle or in cover crops; but did not include cropland used only for pasture since this category was not included under croplarid in the original sampling design. The total estimated acreage was approximately 387 million acres. The use records collected in this study do not lend themselves readily to a statistical estimate of the total tons of DDT applied; therefore, the use records from the Economic Research Service (ERS) (6) are used for comparison purposes. ERS estimated that farmers used approximately 14,950 tons of DOT in 1966. In our study, 10,565 tons of DDTR were detected in soil. This is approximately 71% of the total used in 1966. The amount of DOT actually used in 1968 was probably less than that used in 1966, since there has been a general decline in its use. ERS also estimated that 7,742 tons of aldrin/dieldrin were used by farmers in 1966. In 1968, 4,180 tons of dieldrin and 3,889 tons of aldrin were detected as residues in cropland soil. The combined aldrin/dieldrin residues were 8,069 tons or 104% of the total amount applied in 1966. ------- 11. Clearly considerable amounts of DDTR, aidrin and dieldrin are present in the upper 3 inches of cropland soil. The fate and impact of these residues cannot be evaluated at this time. RESIDUES—INDIVIDUAL STATES The pesticide residue summaries for cropland by individual states are given in Table 4 and similar results for noncropland in Table 5. It would be impractical to att pt to comment on the results for each state. Therefore, in order to facilitate summarizing the data, Figures 1, 2 and 3 are presented. These are for three of the most commonly occurring residues, arsenic, DDTR and dieldrin. Means for each pesticide in each state were calculated, and distribution of these averages are indicated on the corresponding figures. The class intervals for the keys accompanying each figure were obtained in the following manner. The range of residu for the nation was obtained and the highest value was converted to a logarithm. This value was then divided by the number of desired classes. The resulting intervals were added to obtain the class boundaries which in turn were converted to the untransformed dimensions. Essentially, this took advantage of the fact that most residue data are logarithmically distributed. ------- 12. Distribution of arsenic residues across the United States is presented in Figure 1. The highest residue levels were found in the New England states 1 , Arkansas, Kentucky, New York, North Dakota, Ohio and Pennsylvania. These states and groups of states had mean residues of arsenic greater than 8.4 ppm. The remaining residues were distributed primarily in the 2.0 to 8.4 ppm range, with Wyoming and Florida having less than 2.0 ppm. Those states left blank were not sampled. The distribution of DDT residues (DDTR) is shown in Figure 2. Once again, the key indicates the range of residues for each of the class intervals. A similar map for dieldrin residues is presented in Figure 3. A comparison of the mean residues, the percent of times detected and the range for the 12 states with the highest arsenic residues are shown in Table 6. The five states with the highest DDTR residues are presented in Table 7. Although Michigan has a mean residue of 2.09 ppm and a range of 0.01 to 78.36 ppm, only 23.5% of the samples had detectable residues, indicating that the residues were not widely distributed. Mississippi had a mean residue of 2.06 ppm with 89.7% of its sites having detectable rc sidues. Also, the range was narrower, 1 Includes Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont. ------- 13. running between 0.03 to 13.14 ppm. This indicates a much wider distribution of pesticide residues in Mississippi than in Michigan. The seven states with the highest dieldrin residues are shown in Table 8. The highest mean residue, 0.11 ppm, was found in Illinois, with 61.3% of the sites having detectable residues. In general, the other six states tended to have mean residues approxi- mating one another and ranging between 0.06 to 0.08 ppm. PESTICIDE USE RECORDS When soil samples were collected, an attempt was made to determine what pesticides had been used on the sites for the year of sampling. The sunii ary tables for the use records show the percert of times a pesticide was used, the average application rate expressed in pounds per acre of the active ingredients, and the average amount. This last figure was determined by dividing the total amount of active ingredient of a pesticide used by the total number of sites surveyed. Table 9 shows 130 different pesticides reported to have been used in the year of sampling. Those most comonly used were atrazine, captan, 2,4-D, malathion and methylmercury dicyandiamide. DDT was used on 3.44% of the sites, aidrin on 4.16% of the sites and dfeldrin on 1.19% of the sites. On noricroplarid sites 2,4-0, malathion and mirex were reported to have been used (Table 10). However, these should not be considered ------- 14. the only pesticides used on noncropland sites. In general, records kept for treatment of noncropland sites are less accurate than those kept for cropland. The breakdown of pesticide usage by individual states for cropland and noncropland, respectively, are shown in Tables 11 and 12. Because of the number of states and pesticides presented in Tables 11 and 12, it is difficult to make all possible oomparisons between the use patterns indicated and the detected residues shown in Tables 4 and 5. Therefore, we have restricted our comparison to those states having the highest residues as shown in Figures 1, 2 and 3. Table 13 compares those states having the highest arsenic residues with the average amount applied per site and the percent of sites which reported using an arsenic compound. There does not seen to be a relationship between the amount of arsenic applied and the amount detected in the soil. Arkansas, Kentucky, North Dakota and Ohio reportedly used no arsenic compounds, whereas New England, New York and Pennsylvania reported using sodium arsenite and lead arsenate. The application rates were below the detected levels, and the percent of times used was below the percent of times residues were detected. It also must be considered that the application rates were for the active ingredients of sodium arsenite ------- 15. and lead arsenate, and not for elemental arsenic alone. A fair assumption uld be that most arsenic residues detected in cropland soils probably resulted from natural levels of arsenic. A similar comparison for the five states with the highest DDTR residues is found in Table 14. In this case, there is not the confusing factor of natural levels of DDTR as there is with arsenic. We can assume that DDTR detected in the soil resulted from the activities of man, either in the year of sampling or in previous years. Mote that 0 f the five states listed, California, Michigan, Mississippi and South Carolina have application rates less than the mean amount detected in the soil. It is also interesting to compare the percent of sites which reported using technical 001 in the year of sampling. The percent of times residues were detected was approximately three or more times greater than the percent of times farmers reported using DOT. Table 15 shows the seven states with the highest dieldrin residues. In most cases, the average amount of aldrin/dieldrin applied approximated the mean residue of dieldrin detected in the soil, but the percent of times which dieldrin or aldrin were reported used was always considerably less than the percent of times detected. This wider distribution of dieldrin residues, when compared to use records for the year of sampling, probably indicates residues from previous years. ------- 16. PESTICIDE FREQUENCY DISTRIBUTION The statistics discussed so far about residue data, namely the mean, the range and the percent of times that the residues were detected, do not describe their distribution. One way to describe this distribution is through the use of probit analysis. The residue levels were ranked from lowest to highest, accumulated, and the percentages computed. The residues were transformed to logarithms, the percentages to probits, and the relationship between the logarithms of the residues and the probits of the accumulated percentages was calculated by regression analysis. The computer program used was that of Daum (8). The theory and techniques as applied in the cited reference were modified slightly. The distribution for the individual pesticides in soil for each state, and the residue levels along with the upper and lower 95% fiducial limits are presented in Table 16. An example will show how the tables are read. In the state of Alabama, the 50 percentile point for arsenic was 4.09 ppm. Thus, 50% of the sites had residues less than 4.09 ppm. A similar interpretation is applicable to any of the percentile levels found in Table 16. The upper and the lower fiducial limits of the residues establish the 95% confidence interval about the residue value for that percentile. It should be noted that the mean for a particular state, is not the same as the 50 percentile point from the ------- 17. frequency distribution. For example, the mean level of arsenic for Alabama was 6.1 ppm, while the frequency distribution gives 4.09 p ii for the 50 percentile point. In other words, approximately 70% of the sites had residues less than the arithmetic mean. This is an example of the fact that residue data are not normally distributed and the mean and median are not identical. Not all pesticides are shown for all states. A cut—off point of six or more pairs of observations was used to eliminate situations where there were too few observations to calculate a reliable distribution. CROPPING REGIONS ANALYSIS The data were grouped by counties into various cropping regions, and these are shown in Tables l7 and 18. The basis for the boundaries of the various cropping areas was from a major land use map of the United States compiled by F. J. Marschner, of the U.S. Department of Agriculture, Bureau of Agricultural Economics, 1950. No effort was made to make a land use division within counties. This resulted in a good definition of the larger land use areas such as the corn belt and cotton—growing areas. The land in the United States was grouped into several major land use areas--corn, cotton, fruit, general farming, hay, small grain, and vegetables. In some cases, two areas overlapped. Irrigated land was determined from information obtained at the time of sample collection in this study. ------- 18. It is of interest to make a few individual comparisons between the cropping regions and the national means. For example, note that in the corn region, aidrin occurs 23.5% of the time (Table 18) with a mean residue level of 0.05 ppm (Table 17). However, nationally, aidrin only occurs 10.9% of the time with a mean level of 0.02 ppm (Table 1), an indication of the heavier use of aidrin in the corn region. But, in the corn region, the mean residue level of DDT is 0.14 ppm which is well below the national mean of 0.31 ppm. Atrazine in the corn region has a mean residue level of 0.02 ppm with 14.5% of sites having detectable residues. This approximates closely the figure presented in Table 1 for atrazine in all the states. The vegetable and fruit cropping region has the highest level of DDTR, over two times higher than the next highest cropping region and over six times higher than the national mean for DDTR. This might result from a high use of DOT in various orchard operations. The next highest residue is found in the cotton and vegetable region, with approximately equal amounts detected between them. The rest of the amounts of DOT in the cotton and general farming, general farming, hay and general farming, and irrigated land are within close proximity to one another. The two areas with the least amount of DDT in the soil are the corn and small grains cropping regions. ------- 19. The corn, vegetable, and vegetable and fruit cropping regions have the heaviest residues of dieldrin. Residues of dieldrin in the other cropping regions are either equal to or below the mean residues detected for all states (Table 1). The highest toxaphene residues were found in the cotton cropping region. The cotton and general farming, and general farming cropping regions have residue levels of about half those detected in the cotton cropping region. ------- 20. (1) Bennett, I. L. 1967. Foreword. Pestic. Monit. J. 1(1). (2) Panel on Pesticide Monitoring. 1971. Criteria for defining pesticide levels to be considered an alert to potential problems. Pestic. Monit. J. 5:36. (3) Wiersma, G. B., P. F. Sand and E. L. Cox. 1971. A sampling design to determine pesticide residue levels in soils of the conterminous United States. Pestic. Monit. J. 5:63-66. (4) Woodham, W. 1971. An improved gas chromatograhic method for the analysis of 2,4-D free acid in soil. J. Agric. Food Chern. 19:186-188. (5) Anon. 1970. Agricultural Statistics 1970. United States Goverment Printing Office, Washington,D.C. 627 p. (6) Eichers, 1. etal. 1970. Quantities of pesticides used by farmers in 1966. USDA Economic Research Service. Agricultural Economic Report No. 179. 61 p. (7) Fowler, L. 0., J. N. Mahan and H. H. Shepard. 1969. The pesticide review. 1969. USDA Agricultural Stabilization and Conservation Service. 48 p. (8) Daum, R. L. 1970. Revision of two computer programs for probit analysis. Bull. Entomol. Soc. Am. 16:10-15. ------- FIGURE 1 No Sample . 2.0 ppm 2.1) ppm 4.l ppm 4.1 8.4 8.4 ppm ppm ppm CF ,0PLP ND-- ARSENIC RESIDUES HAWAII KAUAI OAHU MAUI I ------- FIGURE 3 CROPLAND- -DIELDRIN RESIDUES ALASKA HAWAII cL . % KA UAI I OAHU .QI MAUI I I 1 1 ç ” No sampl€ <.01 pprr .01 ppm <.03 ppm .03 ppm <.06 ppm c J c J 0t’•• KEY I VIRGIN ISLANDS $T.TWb AI ST.JOHM PUERTO RICO I ppm ------- No Sample .Ol ppm •U1 ppm to <.10 ppm .10 ppm to 1.O ppm r,.) c ’J FIGURE 2 CROPLAND- -DDTh RESIDUES Ott. KEY HAWAII KAUAI OAHU MAUI RICO 1cI j 7.1.0 ppm ------- 24. TABLE 1. SUMMARY OF PESTICIDE RESIDUES I’N CROPLAND SOIL FOR ALL STATES No. of Pest. Pct. of Mean Pest. Range of Pesticide Name Analyses Times Found Level (ppm) Detected Residues (ppm) Aidrin 1729 10.9 0.02 0.01 - 3.06 Arsenic 1726 99.3 6.43 0.25 - 107.45 Atrazine 199 14.1 0.01 0.01 - 1.55 Carbophenothion 66 1.5 <0.01 0.23 - 0.23 Chiordane 1729 8.7 0.04 0.01 - 6.30 2,4-D 188 1.6 <0.01 0.01 - 0.03 DAC 1729 0.1 <0.01 0.54 - 0.54 op’DDE 1729 4.6 <0.01 0.01 - 0.20 pp’DDE 1729 24.8 0.06 0.01 - 6.99 op’DDT 1729 14.1 0.03 0.01 - 6.29 pp’DDT 1729 22.2 0.17 0.01 - 35.92 DDTR 1729 26.1 0.31 0.01 - 78.36 DEF 1729 0.1 <0.01 0.12 - 0.12 Diazinon 66 3.0 <0.01 0.02 - 0.15 Dicofol 1729 0.5 <0.01 0.03 - 1.07 Die ldrin 1729 27.8 0.03 0.01 - 1.60 Endosulfan (I) 1729 0.3 <0.01 0.01 - 0.24 Endosulfan II 1729 0.5 <0.01 0.01 - 0.53 Endosulfan Sulfate 1729 0.6 <0.01 0.01 - 0.94 Endrin 1729 2.3 J.01 0.01 - 0.56 Endrin Aldehyde 1729 0.1 <0.01 0.03 - 0.03 Endrin Ketone 1729 0.5 <0.01 0.01 - 0.13 Ethion 66 1.5 <0.01 0.03 - 0.03 Heptachior 1729 3.9 <0.01 0.01 - 0.97 Heptachlor Epoxide 1729 8.0 <0.01 0.01 - 1.08 Isodrin 1729 0.6 <0.01 0.01 - 0.03 Lindane 1729 0.9 <0.01 0.01 - 0.35 Malathion 66 3.0 0.01 0.04 - 0.36 Methoxychior 1729 0.1 <0.01 0.28 - 0.28 Ethyl Parathion 66 10.6 0.06 0.01 - 3.01 PCNB 1729 0.1 <0.01 0.69 - 0.69 op’TDE 1729 2.8 0.01 0.01 - 4.52 pp 1 TDE 1729 15.3 0.05 0.01 - 31.43 Toxaphene 1729 4.2 0.07 0.10 - 11.72 Trifluralin 1729 3.5 <0.01 0.01 - 0.25 ------- 25. TABLE 2. SUMMARY OF PESTICIDE RESIDUES IN NONCROPLAND SOIL FOR ALL STATES Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues A ldrin 199 0.5 <0.01 0.02 - 0.02 Arsenic 198 98.5 5.01 0.33 - 54.17 Chlordane 199 1.5 <0.01 0.04 - 0.50 op’DDE 199 0.5 <0.01 0.02 - 0.02 pp’DDE 199 13.6 0.01 0.01 - 0.31 op’DDT 199 3.5 O.Ol 0.01 - 0.05 pp’DDT 199 9.1 0.01 0.01 - 0.23 DDTR 199 16.1 0.01 0.01 - 0.62 Dicofol 199 1.0 <0.01 0.10 - 0.29 Die ldrin 199 4.0 <0.01 0.01 - 0.09 Heptachior Epoxide 199 1.0 <0.01 0.01 - 0.01 pp’TDE 199 3.0 <0.01 0.01 - 0.18 Toxaphene 199 0.5 <0.01 0.52 - 0.52 ------- TABLE 3 . ESTIMATED TONS OF DDTR, DIELDRIN AND ALORIN IN CROPLAND — SOIL WITH THE 95% CONFIDENCE INTERVALS Compound Upper Limit Mean Lower Limit DDTR 11668 10565 9558 Die ldrin 4412 4180 3967 Aidrin 3967 3889 3793 26. ------- 27. TABLE . SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL Pesticide Name No. of Pest. Analyses Pct.of Times Found Mean Pe f L ve1 (ppm) Range of Detected (ppm) Residues Arsenic 23 100.0 6.11 0.70 - 28.60 Chiordane 22 13.6 0.04 0.07 - 0.62 op’DDE 22 4.6 <0.01 0.01 - 0.01 pp DDE 22 86.4 0.17 0.01 - 0.72 op’EJDT 22 72.7 0.09 0.01 - 0.65 pp’DDT 22 90.9 0.78 0.02 - 6.60 DDTR 22 90.9 1.13 0.05 - 8.08 Dieldrin 22 22.7 0.01 0.01 - 0.14 Endrin 22 9.1 <0.01 0.03 - 0.05 Heptach lor 22 9.1 <0.01 0.01 - 0.01 1-leptachior Epoxide 22 13.6 <0.01 0.01 - 0.04 Lindane 22 9.1 D.01 0.01 - 0.01 op’TDE 22 4.6 < 0.O1 0.08 - 0.08 ppTDE 22 59.1 0.07 0.01 - 0.73 Toxaphene 22 27.3 0.69 0.68 - 4.95 Trifluralin 22 31.8 0.01 0.01 - 0.08 ARIZONA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 8 100.0 6.58 2.82 - 9.97 op’DDE 8 50.0 0.02 0.01 - 0.07 pp’DDE 8 100.0 0.46 0.06 - 0.84 op’DDT 8 62.5 0.07 0.08 - 0.17 pp’DDT 8 87.5 0.20 0.03 - 0.57 DDTR 8 100.0 0.76 0.06 - 1.56 Endosulfan (1) 8 12.5 0.03 0.24 - 0.24 Endosulfan II 8 12.5 0.07 0.53 - 0.53 Endosulfan Sulfate 8 12.5 0.04 0.29 - 0.29 Endrin 8 37.5 0.07 0.10 - 0.22 Endrjn Ketone 8 25.0 0.01 0.01 - 0.07 pp’TDE 8 25.0 0.01 0.03 - 0.06 Toxaphene 8 75.0 1.09 0.57 - 4.27 Trif lura ljn 8 12.5 0.02 0.13 - 0.13 ALABAMA ------- 28. ARKAN SAS TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. ot Times Found Mean Pest. Level Range of Detected Residues Aidrin 47 14.9 (0.01 0.01 - 0.06 Arsenic 47 100.0 8.98 1.70 - 28.25 op’DDE 47 10.6 0.01 0.01 - 0.07 pp’DDE 47 68.1 0.24 0.01 - 2.81 op’DDT 47 46.8 0.07 0.01 - 1.11 pp’DDT 47 68.1 0.29 0.01 - 3.28 DDTR 47 72.3 0.67 0.03 - 7.20 Dieldrin 47 25.5 0.02 0.01 - 0.24 Endrin 47 10.6 0.01 0.01 - 0.29 Endrin Ketone 47 4.3 ‘-0.01 0.10 - 0.13 pp’TDE 47 57.5 0.07 0.01 — 1.19 Toxaphene 47 17.0 0.27 0.32 - 3.40 Trifluralin 47 8.5 0.01 0.01 - 0.20 CALl FORNIA No. of Pest. Pct. of Mean Pest. Range of Pesticide Name Analyses Times Found Level Detected Residues Aidrin 65 1.5 TO.0l 0.03 - 0.03 Arsenic 65 100.0 5.15 0.74 - 23.67 Carbophenothion 17 5.9 0.01 0.23 - 0.23 Chiordane 65 3.1 0.01 0.10 - 0.32 DAC 65 1.5 0.01 0.54 - 0.54 op’DDE 65 36.9 0.01 0.01 - 0.14 pp’DDE 65 84.6 0.37 0.01 - 5.93 op’DDT 65 49.2 0.08 0.01 - 1.33 pp’DDT 65 73.9 0.54 0.01 - 11.09 DDTR 65 84.6 1.47 0.01 - 41.81 Diazinon 17 5.9 <0.01 0.02 - 0.02 Dicofol 65 9.2 0.02 0.03 - 1.07 Dieldrin 65 30.8 0.02 0.01 - 0.31 Endosulfan (1) 65 1.5 <0.01 0.01 - 0.01 Endosulfan II 65 7.7 <0.01 0.01 - 0.09 Endosulfan Sulfate 65 7.7 0.01 0.02 - 0.15 Endrin 65 13.9 0.01 0.01 - 0.16 Heptachior Epoxide 65 12.3 <0.01 0.01 - 0.03 Lindane 65 3.1 <0.01 0.02 - 0.02 Ethyl Parathion 17 5.9 <0.01 0.02 - 0.02 op’TDE 65 20.0 0.09 0.01 - 4.52 pp’TDE 65 61.5 0.38 0.01 - 20.13 Toxaphene 65 15.4 0.16 0.16 - 2.07 Trifluralin 65 10.8 <0.01 0.01 - 0.10 ------- 29. COLORADO TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residue Arsenic 3 100.0 2.97 0.95 - 5.88 pp’DDE 3 33.3 <0.01 0.01 - 0.01 DDTR 3 33.3 <0.01 0.01 - 0.01 Dieldrin 3 33.3 <0.01 0.01 - 0.01 No. of Pest. Pct. of Mean Pest. Range of Pesticide Name Analyses Times Found Level ppm) Petected ( ppm) Residues Aidrin 60 1.7 <0.01 0.02 - 0.02 Arsenic 58 100.0 4.60 1.78 - 9.46 pp’DDE 60 11.7 0.01 0.01 - 0.17 op’DDT 60 3.3 <0.01 0.01 - 0.03 pp DDT 60 8.3 0.01 0.01 - 0.22 DDTR 60 13.3 0.01 0.01 - 0.42 Dieldrin 60 8.3 0.01 0.01 - 0 .61 Endrin 60 5.0 <0.01 0.01 - 0.02 Endrin Ketone 60 1.7 <0.01 0.05 - 0.05 pp’TDE 60 1.7 <0.01 0.01 - 0.01 CONNECTI CUT No. of Pest. Pct. of Mean Pest. Range of Pesticide Name Analyses Time Found Level Detected Residue Arsenic 2 100.0 3.96 2.33 - 5.59 pp’DDE 2 50.0 0.01 0.01 - 0.01 pp’DDT 2 50.0 0.03 0.05 - 0.05 DDTR 2 50.0 0.03 0.06 - 0.06 Dieldrin 2 50.0 0.01 0.01 - 0.01 DELAWARE ------- 30. TABLE 4. SUt V’1ARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) No. of Pest. Pct. of Mean Pest. Range of Pesticide Name Analyses Times Found (.evel (ppm) Detected (ppm) Residues Aidrin 18 5.6 0.03 0.47 - 0.47 Arsenic 18 88.9 0.77 0.25 - 3.08 Chiordane 18 50.0 0.36 0.04 - 3.32 op’DDE 18 11.1 0.01 0.03 - 0.06 ppSDDE 18 72.2 0.25 0.01 - 2.40 op’DDT 18 50.0 0.10 0.01 - 0.98 pp’DDT 18 77.8 0.37 0.01 - 2.08 DDTR 18 77.8 0.85 0.01 - 5.03 Diazinon 5 20.0 0.03 0.15 - 0.15 Dieldrin 18 38.9 0.08 0.01 - 052 Endrin 18 11.1 0.03 0.13- 0.38 Endrin Aldehyde 18 5.6 <0.01 0.03 - 0.03 Endrin Ketone 18 5.6 <0.01 0.03 - 0.03 Ethion 5 20.0 0.01 0.03 - 0.03 Heptachior 18 5.6 <0.01 0.05 - 0.05 Heptachior Epoxide 18 16.7 0.01 0.01 - 0.07 Ethyl Parathion 5 40.0 0.60 0.01 - 3.01 op’TDE 18 5.6 0.02 0.34 - 0.34 pp’TDE 18 61.1 0.11 0.01 - 0.64 Toxaphene 18 11.1 0.08 0.62 - 0.77 Trifluralin 18 5.6 <0.01 0.03 - 0.03 GEORGIA Pesticide Name No. of Pest. Analyses Pet, of Times Found Mean Pest. Level Range of Detected Residues Arsenic 29 100.0 2.61 0.37 - 10.72 Chiordane 22 4.6 0.01 0.19 - 0.19 2,4-0 3 33.3 <0.01 0.01 - 0.01 op’DDE 22 22.7 0.01 0.01 - 0.08 pp’DDE 22 90.9 0.18 0.01 - 1.04 op’DDT 22 59.1 0.09 0.01 - 0.73 pp’DDT 22 81.8 0.56 0.01 - 4.64 DDTR 22 95.5 0.96 0.01 - 6.31 DEF 22 4.6 0.01 0.12 - 0.12 Die ldrin 22 18.2 <0.01 0.01 - 0.03 Endrin 22 4.6 0.02 0.42 - 0.42 Heptachlor Epoxide 22 4.6 <0.01 0.02 - 0.02 PCNB 22 4.6 0.03 0.69 - 0.69 op’TDE 22 4.6 0.02 0.34 - 0.34 pp TDE 22 68.2 0.10 0.01 - 1.23 Toxaphene 22 36.4 0.60 0.43 - 5.63 Trifluralin 22 13.6 <0.01 0.02 - 0.04 FLORIDA ------- 31. TABLE 4. SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. eve1 (ppm) Range of Detected (ppm) Residues Arsenic 33 97.0 3.22 0.47 - 8.58 Chlordane 33 6.1 <0.01 0.03 - 0.07 pp DDE 33 24.2 0.01 0.01 - 0.09 op’DDT 33 18.2 0.01 0.0] - 0.13 pp’DDT 33 24.2 0.04 0.01 — 0.67 DDTR 33 24.2 0.07 0.02 - 1.03 Die ldrin 33 9.1 0.01 0.03 - 0.11 Heptachior Epoxide 33 3.0 <0.01 0.01 - 0.01 op’TDE 33 9.1 <0.01 0.01 - 0.01 pp’TDE 33 18.2 0.01 0.01 - 0.15 Trifluralin 33 6.1 0.01 0.01 - 0.24 ILLINOIS Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Aidrin 142 42.3 0.13 0.01 - 2.24 Arsenic 142 100.0 8.05 1.54 - 33.40 Atrazine 43 4.7 <0.01 0.02 - 0.10 Chiordane 142 25.4 0.23 0.02 - 5.20 pp’DDE 142 11.3 <0.01 0.01 - 0.05 op’DDT 142 2.8 <0.O1 0.01 - 0.02 pp’DDT 142 8.5 <0.01 0.01 - 0.06 DDTR 142 11.3 0.01 0.01 - 0.29 Dieldrin 142 61.3 0.11 0.01 - 1.42 Heptachior 142 21.8 0.03 0.01 - 0.59 Heptachior Epoxide 142 25.4 0.02 0.01 - 1.08 Isodrin 142 1.4 <0.01 0.02 - 0.02 op’TDE 142 0.7 <0.01 0.06 - 0.06 pp’TDE 142 3.5 <0.01 0.01 - 0.16 Trif luralin 142 1.4 <0.01 0.05 - 0.16 IDAHO ------- 32. TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues Aldrin 78 16.7 0.07 0.01 - 3.06 Arsenic 78 100.0 7.88 1.28 - 19.65 Chlordane 78 5.1 0.02 0.07 - 0.53 pp’DDE 78 L3 <0.01 0.03 - 0.03 op’DDT 78 2.6 <0.01 0.01 - 0 .03 pp’DDT 78 2.6 ‘Z0.01 0.02 - 0.09 DDTR 78 2.6 ‘co.oi 0.06 - 014 Dieldrin 78 26.9 0.03 0.01 - 0.58 Heptach lor 78 2.6 <0.01 0.02 - 0.08 Heptachior Epoxide 78 1.3 <0.01 0.02 - 0.02 Isodrin 78 1.3 <0.01 0.03 - 0.03 pp’TDE 78 2.6 < 0.01 0.01 - 0.01 Trifluralin 78 1.3 <0.01 0.03 - 0.03 IOWA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues Aidrin 151 31.8 0.04 0.01 - 1.37 Arsenic 152 100.0 7.51 0.86 - 107.45 Atrazine 48 27.1 0.05 0.01 - 1.55 Chiordane 151 21.2 0.13 0.04 - 6.30 pp’DDE 151 13.9 0.01 0.01 - 0.18 op’DDT 151 4.0 ‘ 0.01 0.01 - 0.05 pp’DDT 151 15.2 0.01 0.01 - 0.34 DDTR 151 16.6 0.03 0.01 - 0.60 Dieldrin 151 53.6 0.06 0.01 - 0.42 Heptachior 151 9.3 0.02 0.01 - 0.97 Heptachior Epoxide Isodrin 151 151 20.5 1.3 0.01 <0.01 0.01 - 0.01 - 0.33 0.02 op’TDE 151 0.7 <0.01 0.10 - 0.10 pp’TDE Trifluralin 151 151 5.i 3.3 <0.01 <0.01 0.01 - 0.02 - 0.50 0.08 INDIANA ------- 33. TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level t .ppm) Range of 1 etected Residues (ppm) Aidrin 31 25.8 0.03 0.01 - 0.42 Arsenic 31 100.0 8.41 2.60 - 12.80 Chlordane 31 12.9 0.02 0.06 - 0.27 op’DDE 31 3.2 <0.01 0.03 - 0.03 pp’DDE 31 16.1 0.01 0.01 - 0.17 op’DDT 31 9.7 0.02 0.01 - 0.34 pp’DDT 31 19.4 0.04 0.02 - 1.00 DDTR 31 19.4 0.08 0.03 - 1.84 Die ldrin 31 54.8 0.06 0.01 - 0.65 Fleptachior 31 6.5 <0.01 0.01 - 0.01 Heptachior Epoxide 31 3.2 <0.01 0.02 - 0.02 Isodrin 31 6.5 <0.01 0.01 - 0.01 op’TDE 31 3.2 <0.01 0.02 - 0.02 pp’TDE 31 12.9 0.01 0.02 - 0.28 LOUISIANA Pesticide Name No.of Pest. Analyses Pct. of Times Found i iean Pest. Level Range of Detected • Residues Aidrin 27 18.5 <0.01 0.01 - 0.02 Arsenic 27 96.3 2.15 0.26 - 6.34 Chlordane 27 3.7 <0.01 0.11 - 0.11 op’DDE 27 7.4 <0.Ol 0.04 - 0.05 pp’DDE 27 44.4 0.19 0.01 - 2.55 op’DDT 27 33.3 0.10 0.02 - 1.45 pp’DDT 27 48.2 0.61 0.02 - 7.17 DDTR 27 48.2 0.99 0.03 - 10.99 Dieldrin 27 37.0 0.02 0.01 - 0.13 Endrin 27 3.7 <0.01 0.06 - 0.06 Endrin Ketone 27 3.7 <0.01 0.02 - 0.02 pp’TDE 27 33.3 0.08 0.02 - 1.63 Toxaphene 27 14.8 0.57 0.59 - 11.72 Trifluralin 27 3.7 <0.01 0.07 - 0.07 KENTUCKY ------- 34. TABLE 4. SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Level Level (ppm) Range of Detected Residues (ppm) Arsenic 8 100.0 16.01 5.06 - 44.06 Chiordane 8 12.5 0.02 0.12 - 0.12 pp’DDE 8 75.0 0.12 0.02 - 0.36 op’DDT 8 62.5 0.13 0.02 - 0.46 pp’DDT 8 75.0 0.54 0.04 - 1.87 DDTR 8 75.0 0.85 0.08 - 2.86 Endrin 8 12.5 0.02 0.15 - 0.15 Heptachior 8 12.5 <0.01 0.01 - 0.01 Heptachior Epoxide 8 12.5 <0.01 0.01 - 0.01 pp’TDE 8 75.0 0.06 0.01 - 0.19 MARYLAND Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues’ Arsenic 12 100.0 5.69 3.40 - 11.90 Chiordane 12 8.3 0.01 0.09 - 0.09 pp’DDE 12 16.7 <0.01 0.02 - 0.02 pp’DDT 12 8.3 <0.01 0.03 - 0.03 DDTR 12 16.7 0.01 0.02 - 0.05 Dieldrin 12 8.3 0.01 0.06 - 0.06 Heptachior Epoxide 12 8.3 <0.01 0.02 - 0.02 MASSACHUSETTS Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 2 100.0 9.75 7.35 - 12.15 pp’DDE 2 50 .0 0.17 0.34 - 0.34 op’DDT 2 50 .,0 0.10 0.20 - 0.20 pp’DDT 2 50.0 0.49 0.97 - 0.97 DDTR 2 50.0 0.78 1.55 - 1.55 pp’TDE 2 50.0 0.02 0.04 - 0.04 MAI NE ------- 35. TABLE 4. SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) De Residues A ldrin 51 3.9 0.01 0.01 - 0.10 Arsenic 52 100.0 4.85 0.13 - 11.94 Atrazine 13 7.7 0.01 0.18 - 0.18 op’DDE 51 7.8 <0.01 0.01 - 0.14 pp’DDE 51 23.5 0.16 0.01 - 4.58 op’DDT 51 5.9 0.18 0.15 - 6.29 pp’DDT 51 9.8 1.10 0.01 - 35.92 DDTR 51 23.5 2.09 0.01 - 78.36 Die ldrin 51 21.6 0.05 0.01 - 1.01 Endosulfan (I) 51 3.9 0.01 0.03 - 0.24 Endosulfan Sulfate 51 3.9 0.02 0.25 - 0.94 Endrin 51 2.0 <0.01 0.01 - 0.01 pp’TDE 51 9.8 0.65 0.02 - 31.43 MISSISSIPPI Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 30 100.0 5.70 1.10 - 16.90 op’DDE 29 31.0 0.01 0.01 - 0.08 pp’DDE 29 89.7 0.31 0.01 - 1.43 op’DDT 29 75.9 0.20 0.02 - 1.35 pp’DDT 29 89.7 1.36 0.01 - 9.28 DDTR 29 89.7 2.06 0.03 - 13.14 Die ldrin 29 34.5 0.01 0.02 0.10 Endrin 29 3.5 0.01 0.19 - 0.19 Endrin Ketone 29 3.5 <0.01 0.11 - 0.11 Lindane 29 6.9 O.0l 0.01 - 0.04 op’TDE 29 6.9 0.03 0.33 - 0.49 pp 1 TDE 29 69.0 0.15 0.01 - 0.81 Toxaphene 29 48.3 0.78 0.10 - 8.80 Trifluralin 29 20.7 0.02 0.02 - 0.25 MICHIGAN ------- 36. TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (cONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Dçtected (ppm) Residues Aidrin 82 22.0 0.05 0.01 - 1.59 Arsenic 81 98.8 5.99 0.49 - 24.51 Chlordane 82 7.3 0.03 0.17 - 0.60 pp’DDE 82 3.7 (0.01 0.01 - 0.01 op’DDT 82 2.4 0.O1 O.O - 0.02 pp’DDT 82 3.7 <0.Ol 0.02 - 0.09 DDTR 82 3.7 <0.01 0.03 - 0.12 Dieldrin 82 31.7 0.04 0.01 - 0.55 Endrin 82 1.2 ‘0.01 0.01 - 0.01 Heptachior 82 6.1 <0.01 0.01 - 0.04 Heptachior Epoxide 82 6.1 <0.01 0.01 - 0.06 Isodrin 82 1.2 <0.01 0.03 - 0.03 Toxaphene 82 1.2 0.04 3.15 - 3.15 Trifluralin 82 6.1 <0.01 0.02 - 0.10 NEBRASKA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues A ldrin 106 1.9 <0.01 0.01 - 0.01 Arsenic 106 100.0 5.81 0.33 - 15.80 Atrazine 72 16.7 0.01 0.01 - 0.12 Chiordarie 106 10.4 0.01 0.03 - 0.18 pp DDE 106 13.2 0.01 0.01 - 0.10 op’DDT 106 5.7 0.01 0.01 - 0.08 pp’DDT 106 11.3 0.01 0.01 - 0.19 DDTR 106 15.1 0.01 0.02 - 0.31 Dicofol 106 1.9 0.01 0.10 - 0.10 Dieldrin 106 34.9 0.02 0.01 - 0.19 Endrin 106 0.9 <0.01 0.02 - 0.02 Heptachlor 106 0.9 0.01 0.01 - 0.01 Heptachlor Epoxide 106 11.3 0.O1 0.01 - 0.03 Malathion 2 50.0 0.18 0.36 - 0.36 pp’TDE 106 3.8 (0.01 0.01 - 0.05 MISSOURI ------- 37. TABLE 4. SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pi t. Level (ppm) Range of Detected (ppm) Residues Arsenic 2 100.0 2.32 1.77 - 2.86 NEW HAMPSHIRE Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 2 100.0 5.35 1.31 - 9.38 pp’DDE 2 50.0 0.02 0.03 - 0.03 DDTR 2 50.0 0.02 0.03 - 0.03 NEW JERSEY Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 5 100.0 11.72 4.55 - 17.21 op’DDE 5 29.0 K0.O1 0.02 - 0.02 pp’DDE 5 40.0 0.17 0.18 - 0.66 op’DDT 5 20.0 0.06 0.28 - 0.28 pp’DDT 5 40.0 0.24 0.05 - 1.17 DDTR 5 40.0 0.55 0.26 - 2.48 Die ldrin 5 40.0 0.05 0.05 - 0.21 Endosulfan II 5 20.0 <0.01 0.02 - 0.02 Endosulfan Sulfate 5 20.0 0.02 0.11 - 0.11 Heptachior Epoxide 5 20.0 <0.01 0.01 - 0.01 Lindane 5 20.0 0.01 0.03 - 0.03 Ethyl Parathion 1 100.0 0.02 0.02 - 0.02 op’TDE 5 20.0 0.02 0.09 - 0.09 pp’TDE 5 40.0 0.06 0.03 - 0.26 NEVADA ------- 38. TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) NEW MEXICO Pesticide Name No of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of D tected tppm) Residues Arsenic 10 100.0 4.64 0.66 - 15.82 pp DDE 10 40.0 0.02 0.01 - 0.11 op’DDT 10 10.0 <0.01 0.01 - 0.01 pp’DDT 10 40.0 0.01 0.01 - 0.03 DDTR 10 40.0 0.02 0.02 - 0.15 Dieldrin 10 10.0 <0.01 0.01 - 0.01 NEW YORK Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 37 94.6 9.38 1.24 - 43.90 Chiordane 38 2.6 0.08 3.19 - 3.19 op’DDE 38 7.9 <0.01 0.01 - 0.06 pp’DDE 38 39.5 0.23 0.01 - 3.70 op DDT 38 29.0 0.07 0.01 - 1.45 pp DDT 38 342 0.53 0.02 - 7.67 DDTR 38 39.5 0.91 0.01 - 13.29 Dieldrin 38 34.2 0.05 0.01 - 0.96 Endrin 38 2.6 0.01 0.56 - 0.56 Endrin Ketone 38 2.6 <.0.01 0.05 - 0.05 Lindane 38 7.9 0.01 0.01 - 0.23 Methoxychlor 38 2.6 0.01 0.28 - 0.28 op’TDE 38 5.3 0.01 0.06 - 0.37 pp’TDE 38 26.3 0.07 0.01 - 1.49 ------- 39. TABLE 4 NORTH CAROLINA SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Level (ppm) Range Detected Residues (ppm) Aidrin 31 9.7 0.05 0.01 - 1.12 Arsenic 27 100.0 6.18 0.73 - 22.00 Chiordane 31 3.2 <0.01 0.11 - 0.11 op’DDE 31 19.4 <0.01 0.01 — 0.03 0.01 0.44 pp’DDE 31 71.0 0.08 - 0.83 op’DDT pp 1 DDT 31 31 45.2 61.3 0.07 0.28 - 0.01 - 1.75 0.02 2.88 DDTR 31 71.0 0.53 - Dieldrin 31 32.3 0.08 0.01 - Endrin 31 6.5 <0.01 0.01 - 0.08 Heptachior 31 6.5 <0.01 0.01 - 0.02 0.01 0.03 Ileptachior Epoxide Isodrin 31 31 12.9 3.2 ‘O.Ol <0.01 - 0.01 — 0.01 Ethyl Parathion 6 16.7 <0.01 0.02 - 0.17 op’TDE pp’TDE 31 31 35.5 61.3 0.03 0.07 - 0.01 - 0.27 0.34 3.20 Toxaphene 31 22.6 0.28 0.11 Trifluralin 31 6.5 <0.01 - NORTH DAKOTA of Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Level Rang Detected Residues Aidrin 157 0.6 <0.01 0.03 - 0.03 Arsenic 158 100.0 8.50 0.98 - Chiordane 157 1.9 <0.01 0.08 - 0.14 pp’DDE op’DDT pp’DDT DDIR 157 157 157 157 6.4 3.2 5.1 64 <0.01 <0.01 0.01 0.01 0.01 - 0.01 - 0.19 0.01 — 0.56 0.01 - 0.95 Dieldrin 157 7.6 <‘0.01 0.01 — 0.01 Endrin 157 0.6 <0.Ol 0.01 - Heptachior Epoxide pp’TDE 157 157 1.9 4.5 <0.01 <0.01 0.02 - 0.01 - 0.06 ------- 40. TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected Residues (ppm) . Aidrin 68 14.7 0.03 0.01 - 0.74 Arsenic 69 100.0 11.23 1.15 - 41.49 Chiordane 68 4.4 0.01 0.01 - 0.71 op’DDE 68 1.5 <0.01 0.20 - 0.20 pp’DDE 68 16.2 0.03 0.01 - 1.77 op’DDT 68 2.9 0.01 0.19 - 0.22 pp’DDT 68 8.8 0.04 0.01 - 1.27 DDTR 68 16.2 0.08 0.01 - 3.38 Dieldrin 68 27.9 0.02 0.01 - 0.30 Endosulfan (I) 68 1.5 <0.01 0.07 - 0.07 Endosulfan II 68 1.5 <. 0.01 0.29 - 0.29 Endosulfan Sulfate 68 1.5 0.01 0.40 - 0.40 0.01 - 0.01 Heptachior 68 2.9 <0.01 Heptachior Epoxide 68 1.5 <0.01 0.01 0.01 Isodrin 68 2.9 <0.01 0.01 - 0.03 Lindane 68 1.5 0.01 0.35 - 0.35 pp’TDE 68 4.4 <0.01 0.04 - 0.12 Trifluralin 68 1.5 <0.01 0.06 - 0.06 OKLAHOMA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 62 96.8 3.30 0.24 - 14.58 Chiordane 64 1.6 0.0l 0.07 - 0.07 pp’DDE 64 15.6 0.01 0.01 - 0.09 op’DDT 64 1.6 0.0l 0.01 - 0.01 pp’DDT 64 14.1 0.01 0.01 - 0.09 DDTR 64 15.6 0.01 0.02 - 0.17 Dieldrin 64 3.1 0.01 0.01 - 0.01 Heptachior Epoxide 64 1.6 0.01 0.01 - 0.01 pp 1 TDE 64 3.1 0.01 0.01 - 0.02 Trifluralin 64 1.6 O.Ol 0.03 - 0.03 OH 10 ------- 41. PENNSYLVANIA TABLE . SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. L ve1 i ppm) Range of Detected (ppm) Residues Arsenic 29 100.0 10.80 2.96 - 64.94 Chlordarte 29 20.7 0.07 0.02 - 0.92 op’DDE 29 3.5 <0.01 0.08 - 0.08 pp’DDE 29 31.0 0.07 0.01 - 1.52 op’DDT 29 17.2 0.03 0.01 - 0.67 pp’DDT 29 27.6 0.12 0.01 - 2.99 DDTR 29 37.9 0.27 0.01 - 5.50 Dicofol 29 3.5 0.02 0.53 - 0.53 Dieldrin 29 34.5 0.02 0.01 - 0.14 Endosulfan II 29 3.5 <0.01 0.02 - 0.02 Endosulfan Sulfate 29 3.5 <0.01 0.01 - 0.01 Heptachior Epoxide 29 13.8 ‘O.Ol 0.01 - 0.03 Ethyl Parathion 3 33.3 < ‘0.0l 0.01 - 0.01 0p 1 TDE 29 13.8 0.01 0.03 - 0.20 pp’TDE 29 24.1 0.04 0.01 - 0.55 Trifluralin 29 6.9 <0.Ol 0.01 - 0.07 RHODE ISLAND Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 1 100.0 21.30 21.30 - 21.30 pp 1 DDE 1 100.0 0.23 0.23 - 0.23 op’DDT 1 100.0 0.25 0.25 - 0.25 pp’DDT 1 100.0 2.46 2.46 - 2.46 DDTR 1 100.0 3.00 3.00 - 3.00 Dieldrin I 100.0 0.11 0.11 - 0.11 pp’TDE 1 100.0 0.06 0.06 - 0.06 — ------- 42. TABLE 4 SOUTH CAROLINA SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (cONT) Pesticide Name No. of Pest. Analyses i t. of Times Found Mean Pe fT Level (ppm) Range of Detected (ppm) Residues Aidrin 17 5.9 0.01 0.14 - 0.14 Arsenic 17 100.0 3.28 0.53 - 19.54 2,4- .D 2 50.0 0.02 0.03 - 0.03 op’DDE 17 41.2 0.01 0.01 - 0.05 pp’DDE 17 82.4 0.24 0.01 - 0.93 op’DDT 17 70.6 0.15 0.01 - 0.95 pp’DDT 17 64.7 0.64 0.12 - 3.15 DDTR 17 88.2 1.17 0.01 - 4.78 Dieldrin 17 17.7 0.04 0.02 - 0.56 Endrin 17 17.7 <0.01 0.01 - 0.05 Heptachior Epoxide 17 17.7 <0.01 0.01 - 0.01 Lindane 17 5.9 <0.01 0.01 - 0.01 op’TDE 17 29.4 0.03 0.03 - 0.19 pp’TDE 17 82.4 0.10 0.01 - 0.34 Toxaphene 17 5.9 0.10 1.74 - 1.74 Trifluralin 17 29.4 0.01 0.01 - 0.08 SOUTH DAKOTA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 0l 100.0 5.80 0.47 - 34.54 Chiordane 106 2.8 0.01 0.10 - 0.66 pp’DDE 106 1.9 <0.01 0.01 - 0.03 op’DDT 106 1.9 <0.01 0.01 - 0.03 pp’DDT 106 1.9 <0.01 0.02 - 0.04 DDTR 106 3.8 <0.01 0.01 - 0.10 Dieldrin 106 8.5 0.01 0.01 - 0.25 Heptachior 106 0.9 <0.01 001 - 0.01 Heptachior Epoxide 106 2.8 <0.01 0.01 - 0.03 Lindane 106 2.8 <0.01 0.01 - 0.02 pp 1 TDE 106 0.9 <0.01 0.02 - 0.02 ------- 43. TABLE 4. SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. o-f Pest. Analyses Pct. of Times Found Mean Pest. Level’ (ppm) Range of Detected (ppm) Residues Arsenic 27 100.0 8.05 2.31 - 15.63 Chiordane 27 3.7 0.01 0.20 - 0.20 pp’DDE 27 37.0 0.02 0.01 — 0.26 op’DDT 27 25.9 0.01 0.0] - 0.08 pp’DDT 27 37.0 0.05 0.01 - 0.38 DDTR 27 40.7 0.11 0.01 - 0.70 Dieldrin 27 22.2 <0.01 0.01 - 0.03 Endrin 27 3.7 <0.01 0.02 - 0.02 pp’TDE 27 22.2 0.03 0.02 - 0.36 Toxapherie 27 14.8 0.14 0.13 - 2.19 Trifluralin 27 7.4 <0.01 0.04 - 0.05 UTAH ‘ Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest Level Range of Detected Residues Arsenic 12 91.7 4.16 0.62 - 12.66 Chlordane 12 33.3 0.04 0.02 - 0.25 pp’DDE 12 16.7 <0.01 0.01 - 0.02 pp’ODT 12 8.3 <0.01 0.03 - 0.03 DDTR 12 16.7 0.01 0.01 — 0.05 Dieldrin 12 16.7 0.01 0.02 - 0.15 Heptachior 12 16.7 0.02 0.02 - 0.26 Heptachior Epoxide 12 25.0 0.01 0.02 - 0.05 TENNESSEE ------- 44. TABLE 4 SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. .eve1 (ppm) Range of Detected (ppm) Residues Arsenic 4 100.0 1.79 0.99 - 2.30 pp’DDE 5 20.0 <0.01 0.01 - 0.01 DDTR 5 20.0 <0.01 0.01 - 0.01 Dieldrin 5 20.0 <0.O1 0.01 - 0.01 VIRGINIA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Aidrin 21 4.8 <0.01 0.01 - 0.01 Arsenic 20 100.0 3.34 0.69 - 12.34 Chiordane 21 23.8 0.01 0.01 - 0.11 pp’DDE 21 52.4 0.02 0.01 - 0.22 op’DDT 21 19.1 0.01 0.01 - 0.17 pp’DDT 21 38.1 0.11 0.01 - 1.31 DDTR 21 52.4 0.17 0.01 - 1.75 Dieldrin 21 28.6 0.08 0.01 - 1.60 Heptachior 21 19.1 0.01 0.01 - 0.05 Malathion 1 100.0 0.04 0.04 - 0.04 Ethyl Parathion 1 100.0 0.90 0.90 - 0.90 op’TDE 21 4.8 <0.01 0.07 - 0.07 pp’TDE 21 33.3 0.02 0.01 - 019 Toxaphene 21 4.7 0.01 0.28 - 0.28 VERMONT ------- 45. TABLE SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT 1 WASHINGTON Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues Aidrin 45 4.4 <0.01 0.09 - 0.10 Arsenic 45 100.0 2.61 0.71 - 7.02 2,4-D 6 16.7 <0.01 0.01 - 0.01 op’DDE 45 4.4 <0.01 0.01 - 0.09 pp’DDE 45 22.2 0.17 0.01 - 6.99 op’DDT 45 13.3 0.06 0.01 - 2.58 pp’DDT 45 22.2 0.46 0.01 — 19.75 DOIR 45 24.4 0.72 0.01 - 30.69 Dieldrin 45 17.8 0.02 0.01 - 0.30 op’TDE 45 2.2 . 0.O1 0.17 — 0.17 pp’TDE 45 6.7 0.03 0.01 - 1.11 Toxaphene 45 2.2 0.02 0.73 - 0.73 Trifluralin 45 2.2 <0.01 0.08 - 0.08 WEST VIRGINIA Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 6 100.0 6.33 4.36 - 8.17 Chiordane 6 50.0 0.21 0.09 - 0.78 pp’DDE 6 33.3 0.02 0.04 - 0.10 pp’DDT 6 33.3 0.01 0.01 - 0.07 DDTR 6 33.3 0.04 0.05 - 0.17 Dieldrin 6 16.7 0.04 0.23 - 0.23 Heptachior Epoxide 6 50.0 0.06 0.08 - 0.18 ------- 46. TABLE 4. SUMMARY OF PESTICIDE RESIDUES IN CROPLAND SOIL (CONT) WISCONSIN No. of Pest. Pct. of Mean Pest. Range of Pesticide Name Analyses Times Found Level ppm) Detected ppm) Residues Aidrin 67 7.5 <0.01 0.01 - 004 Arsenic 68 100.0 3.78 0.34 10.01 Chiordane 67 4.5 0.01 0.04 - 0.32 op’DDE 67 1.5 <0.01 0.02 - 0.02 pp’DDE 67 13.4 0.01 0.01 - 0.27 op’DDT 67 4.5 0.01 0.05 - 0.20 pp’DDT 67 10.5 0.01 0.01 - 0.30 DDTR 67 13.4 0.02 0.01 - 0.71 Dieldrin 67 13.4 0.01 0.01 - 0.17 Heptachior 67 3.0 <0.01 0.01 - 0.01 Heptachior Epoxide 67 3.0 <0.01 0.01 - 0.01 pp’TDE 67 6.0 <0.01 0.01 - 0.12 Trifluralin 67 1.5 <0.01 0.01 - 0.01 WYOMiNG Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level Range of Detected Residues Arsenic 17 82.4 1.71 0.40 - 10.88 Chiordane 17 23.5 0.05 0.03 - 0.48 Dieldrin 17 35.3 0.02 0.02 - 0.19 Heptachlor Epoxide 17 17.7 0.01 0.02 - 0.05 ------- 47. TABLE 5 SUMMARY OF PESTICIDE RESIDUES IN NONCROPLAND SOIL Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range f Detected Residues (ppm) Arsenic 44 100.0 6.63 1.35 - 30.64 Chiordane 44 2.3 <0.01 0.08 - 0.08 pp’DDE pp’DDT 44 44 18.2 2.3 cO.Ol <0.01 0.01 - 0.03 - 0.06 0.03 DDTR 44 18.2 <.0.Ol 0.01 - 0.09 Dieldrin 44 2.3 <0.01 0.03 - 0.03 GEORGIA Pesticide Name No. oTPest. Analyses Pct. of — Times Found Mean Pest. Level (ppm) Ran i f Detected (ppm) Residues Arsenic 19 94.7 1.47 0.53 - 4.29 pp’DDE 10 60.0 0.02 0.01 - 0.07 op’DDT 10 20.0 <0.01 0.01 - 0.02 pp’DDT 10 50.0 0.02 0.01 - 0.10 DDTR 10 70.0 0.05 0.01 - 0.12 Dieldrin 10 10.0 p0.01 0.01 - 0.01 pp’TDE 10 10.0 <0.01 0.01 - 0.01 I DM0 Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues Arsenic 26 100.0 7.73 1.01 - 39.07 pp’DDE 26 11.5 <0.01 0.01 - 0.01 op’DDT pp’DDT DDTR 26 26 26 3.9 3.9 11.5 <0.01 <0.01 0.01 0.02 - 0.06 - 0.01 - 0.02 0.06 0.11 pp’TDE 26 3.9 <0.01 0.02 - 0.02 ARI ZONA ------- 48. TABLE 5. SUMMARY OF PESTICIDE RESIDUES IN NONCROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected Residues (ppm) Aidrin 7 14.3 <0.01 0.02 - 0.02 Arsenic 7 100.0 7.08 1.71 — 17.39 MAINE Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected Residues (ppm) Arsenic 8 100.0 5.14 1.40 - 13.00 pp’DDE 11 9.1 0.02 0.18 - 0.18 op’DDT 11 9.1 <0.01 0.03 - 0.03 pp’DDT 11 9.1 0.02 0.23 - 0.23 DDTR 11 9.1 0.06 0.62 - 0.62 pp’TDE 11 9.1 0.02 0.18 - 0.18 MARYLAND Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected Residues (ppm) Arsenic 3 100.0 8.43 5.20 - 11.97 pp’DDE op’DDT 3 3 33.3 3.3 0.02 0.01 0.05 - 0.05 0.03 - 0.03 pp’DDT 3 66.7 0.05 0.03 - 0.11 DDTR 3 66.7 0.09 0.03 - 0.23 pp’TDE 3 33.3 0.01 0.04 - 0.04 IOWA ------- 49. TABLE . SUMMARY OF PESJICIDE RESIDUES IN NONCROPLAND SOIL (CONT) Pesticide Name . No. of Pest. Analyses Pct. of Mean Pest. Times Found L?vel (ppm) Range of Detected Residues (ppm) Arsenic 17 94.1 2.18 0.33 - 8.42 Chlordane 19 5.3 <0.01 0.04 - 0.04 pp’DDE 19 15.8 <0.01 0.01 - 0.04 op’DDT 19 5.3 <0.01 0.01 - 0.01 pp’DDT 19 5.3 <0.01 0.02 - 0.02 DDTR 19 15.8 <0.01 0.01 - 0.07 Dicofol 19 10.5 0.02 0.10 - 0.29 Oleidrin 19 10.5 <0.01 0.01 - 0.01 1-leptachior Epoxide 19 5.3 <0.01 — 0.01- 0.01 VIRGINIA Pesticide Name No. of Pest. Analyses Pct. of Mean Pest. Times Found Level (ppm) Range of Detected (ppm) Residues Arsenic 10 100.0 4.07 0.50 - 12.42 pp’DDT 13 23.1 0.01 0.03 - 0.07 DDTR 13 23.1 0.01 0.03 - 0.09 Dieldrin 13 15.4 0.01 0.03 - 0.09 pp’TDE 13 7.7 <0.01 0.02 - 0.02 WASHINGTON Pesticide Name No. of Pest. Analyses Pct. of Mean Pest. Times Found Level (ppm) Range of Detected (ppm) Residues Arsenic 21 100.0 6.94 1.58 - 54.17 pp’DDE 21 14.3 (0.01 0.01 - 0.02 pp’DDT 21 9.5 <0.01 0.01 - 0.01 DDTR 21 14.3 <0.01 0.01 - 0.03 NEB RASKA ------- 50. TABLE 5. WEST VIRGINIA SUMMARY OF PESTICIDE RESIDUES IN NONCROPLAND SOIL (CONT) Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues Arsenic 6 100.0 5.16 2.67 - 13.26 pp’DDE 8 12.5 <0.01 0.02 - 0.02 pp’DDT 8 12.5 0.01 0.05 - 0.05 DDTR 8 12.5 0.01 0.08 - 0.08 Dieldrin 8 12.5 0.01 0.04 - 0.04 pp’TDE 8 12.5 •M.Ol 0.01 - 0.01 WYOMING Pesticide Name No. of Pest. Analyses Pct. of Times Found Mean Pest. Level (ppm) Range of Detected (ppm) Residues Arsenic 37 97.3 2.73 0.35 - 19.33 Chiordane 37 2.7 0.01 0.50 - 0.50 op’DDE 37 2.7 < O.O1 0.02 - 0.02 pp’DDE 37 2.7 0.01 0.31 - 0.31 op’DDT 37 2.7 0.O 1 0.05— 0.05 pp’DDT 37 2.7 0.Ol 0.18 - 0.18 DDTR 37 2.7 0.02 0.56 - 0.56 Dieldrin 37 2.7 0.0l 0.02 — 0.02 Heptachior Epoxide 37 2.7 .0.01 0.01 - 0.01 Toxaphene 37 2.7 0.01 0.52 - 0.52 ------- 51 TABLE 6. COMPARISON OF THE STATES HAVING THE HIGHEST ARSENIC RESIDUES State No.of Pest. Analyses Pct. of Times Found Mean Pest. Range of Level Detected (ppm) (ppm) Residues Arkansas 47 100.0 9.0 1.7 - 28.2 Kentucky 31 100.0 8.4 2.6 - 12.8 New England 19 100.0 10.2 1.0 - 14.1 New York 37 94.6 9.4 1.2 - 43.9 North Dakota 158 100.0 8.5 1.0 - 37.5 Ohio 69 100.0 11.2 1.2 - 41.5 Pennsylvania 29 100.0 10.8 3.0 - 64.9 ------- 52. TABLE 7. COMPARISON OF THE STATES HAVING THE HIGHEST ODTR RESIDUES State No. of Pest. Analyses Pct. of Times Found Mean Pest. Range of Level Detected (ppm) (ppm) Residues . Alabama 22 90.9 1.13 0.05 - 8.08 California 65 84.6 1.47 0.01 - 41.81 Michigan 51 23.5 2.09 0.01 - 78.36 Mississippi 29 89.7 2.06 0.03 - 13.14 South Carolina 17 88.2 1.17 0.01 - 4.78 ------- 53. TABLE 8. COMPARISON OF THE STATES WITH THE HIGHEST DIELDRIN RESIDUES State No. of Pest. Analyses Pct. of Times Found Mean Pest. Level - (ppm) Range of Detected (ppm) Residues Florida 18 38.9 0.08 0.01 - 0.52 Illinois 142 61.3 0.11 0.01 - 1.42 Iowa 151 53.6 0.06 0.01 - 0.42 Kentucky North Carolina 31 31 54.8 32.3 0.06 0.08 0.01 - 0.65 0.01 - 1.53 Virginia/W. Virginia 27 25.9 0.07 0.01 - L60 ------- 54. TABLE L• SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND FOR ALL STATES ALL STATES - 1684 SITES Pct. of Average Average Pesticide Name Sites Appi. Rate (lbs/a) Amount (lbs/a) Aidrin 4.16 1.25 0.0522 Amiben 2.14 1.07 0.0229 Aramite 0,12 2.35 0.0028 Atrazine 7.66 1.88 0.1442 Azinphosmethyl 0.59 1.70 0.0101 Azodrin 0.42 2.07 0.0086 Bacillus Thuringiensis 0.12 9.50 0.0113 Barban 0.12 0.17 0.0002 Benefin 0.18 1.36 0.0024 Benzene Hexachioride 0.06 3.00 0.0018 Bidrin 0.24 0.18 0.0004 Biriapacryl 0.06 2.12 0.0013 Bordeaux Mixtures 0.06 0.50 0.0003 Cacodylic Acid 0.06 0.01 0.0000 Captan 11.16 0.12 0.0133 Carbaryl 1.72 3.64 0.0627 Carbophenothion 0.18 1.83 0.0033 CDAA 0.89 1.78 0.0158 Ceresan L 1.25 0.01 0.0002 Ceresan M 1.48 0.01 0.0001 Ceresan Red 1.84 0.01 0.0003 Chevron RE-5353 0.30 1.72 0.0051 Chiordane 0.12 3.10 0.0037 Ch lorobenzilate 0.12 1.31 0.0016 Chloroneb 0.36 0.05 0.0002 Chioroxuron 0.30 1.65 0.0049 Chromophon 0.06 0.15 0.0001 CIPC 0.12 1.50 0.0018 Copper Carbonate 0.06 0.60 0.0004 Copper Oxide 0.18 4.23 0.0075 Copper Oxychioride Sulfate 0.12 4.68 0.0056 Copper-8-Quino lino late 0.06 0.01 0.0000 Copper Sulfate 0.36 13.53 0.0482 Cotoran 0.48 0.74 0.0035 2,4-D 15.14 054 0.0825 2,4-DB 0.89 0.48 0.0042 Dalapon 0.42 2.12 0.0088 DOT Technical 3.44 5.56 0.1915 ------- 55. TABLE . SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND FOR ALL STATES (CONT) ALL STATES - 1684 SITES Pct. of Average Average Pesticide Name Sites . Appi. Rate (lbs/a) Amount (lbs/a) DEF 0.59 1.66 0.0099 Demeton 0.18 0.59 0.0011 Diazinon 1.96 1.22 0.0240 Dicamba 0.30 0.39 0.0012 Dichione 0.12 2.00 0.0024 Dichiorpropane 0.06 54.43 0.0323 Dichiorpropene 0.36 70.07 0.2496 Dichiorprop 0.06 2.00 0.0012 Dicofol 0.42 2.12 0.0088 Die ldrin 1.19 0.17 0.0021 Difolatan 0.06 0.01 0.0000 Dimetan 0.06 0.01 0.0000 Dimethoate 0.12 0.75 0.0009 Dinitrobutyiphenol 0.95 3.78 0.0359 Dinitrocresol 0.06 3.00 0.0018 Dinocap 0.12 0.22 0.0003 Dioxathion 0.12 2.60 0.0031 Diphenamid 0.24 2.19 0.0052 Diquat 0.06 0.83 0.0005 Disulfoton 1.72 1.77 0.0305 Dithane M-45 0.30 5.82 0.0173 Diuron 1.13 0.93 0.0105 DSMA 0.36 1.52 0.0054 Endosulfan (I) 0.48 1.11 0.0053 Endrin 0.48 2.21 0.0105 EPN 0.06 1.50 0.0009 EPIC 0.36 2.65 0.0094 Ethion 0.24 2.06 0.0049 Ethylene Dibronhide 0.12 14.62 0.0174 Falone 0.06 2.00 0.0012 Ferbam 0.06 9.12 0.0054 Folex 0.06 1.50 0.0009 Heptachior 1.96 0.33 0.0065 Herbisan 0.06 10.00 0.0060 Hexachlorobenzene 0.06 0.01 0.0000 Lead Arsenate 0.06 3.80 0.0023 Lindane 0.65 0.03 0.0002 Linuron 0.77 0.73 0.0056 Malathion 7.54 0.17 0.0127 Maleic Hydrazide 0.36 1.43 0.0051 Maneb 0.30 2.14 0.0064 MCPA 1.07 0.33 0.0035 Methoxychlor 2.20 0.04 0.0008 ------- 56. TABLE 9. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND FOR ALL STATES (CONT) ALL STATES - 1684 SITES Pct. of. Average Average Pesticide Name Sites App]. Rate Amount (lbs/a) (lbs/a) Methyl Demeton 0.06 1.50 0.0009 Methylmercury Dicyandiamide 5.46 0.01 0.0006 Methylmercury Nitrile 0.06 Q.Ol 0.0000 Mevinphos 0.36 1.48 0.0053 Mirex 0.24 0.01 0.0000 Monuron 0.06 1.60 0.0010 MSMA 0.48 1.21 0.0058 Nabam 0.24 1.78 0.0042 Naled 0.30 1.62 0.0048 Nitralin 0.36 0.76 0.0027 Nitrate 1.13 64.58 0.7286 Norea 0.12 0.46 0.0006 NPA 0.36 1.01 0.0036 Oxydemetoninethyl 0.18 0.40 0.0007 Ethyl Parathion 1.84 1.48 0.0272 Methyl Parathion 3.03 3.07 0.0929 PCNB 0.42 1.59 0.0066 PCP 0.06 1.50 0.0009 Phenylmercury Urea 0.06 0.01 0.0000 Phorate 0.65 2.17 0.0142 Phosphamidon 0.12 0.13 0.0002 Picloram 0.12 0.63 0.0007 PMA 0.18 0.06 0.0001 Polyram 0.06 10.40 0.0062 Prometryne 0.06 2.00 0.0012 Propanil 0.42 3.96 0.0165 Propazine 0.06 2.00 0.0012 Ramrod 1.37 1.45 0.0198 Ro-Neet 0.12 1.88 0.0022 Roundup 0.12 0.78 0.0009 Randox T 0.12 0.90 0.0011 Silvex 0.12 0.63 0.0007 Simazine 0.12 2.07 0.0025 Simetryne 0.06 2.00 0.0012 Sodium Arsenite 0.24 5.25 0.0125 Sodium Chlorate 0.06 6.00 0.0036 Strobane 0.12 16.50 0.0196 Sulfur 0.71 34.00 0.2423 ------- 57. TABLE 9. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND FOR ALL STATES (CONT) ALL STATES - 1684 SITES Pesticide Name Pct. of Sites . Average Appl. Rate (1bsf ) Average Amount (lbs/a) 2,4,5—T 0.18 0.83 0.0015 ICA 0.06 2.00 0.0012 IDE Technical 0.36 2.31 0.0082 Tetradifon 0.12 0.50 0.0006 Thiram 1.07 0.03 0.0003 Toxaphene 1.90 9.87 0.1876 Trichiorofon 0.06 0.80 0.0005 Trifluralin 4.33 0.76 0.0327 Vernolate 0.53 1.29 0.0069 Zineb 0.18 4.90 0.0087 Ziram 0.06 0.80 0.0005 ------- 58. TABLE it t SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON NONCROPLAND FOR ALL STATES ALL STATES - 195 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) 2,4-D 0.51 2.00 0.0103 Malathion 0.51 0.61 0.0031 Mirex 0.51 0.01 0.0001 ------- 59. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND ALABAMA - 23 SITES Pct. of Average Average Pesticide Name Sites Appi. Rate (lbs/a) Amount (lbs/a) Azodrin 4.35 0.84 0.0365 Benzene Hexachioride 4.35 3.00 0.1304 Captan 21.74 0.04 0.0083 Carbaryl 4.35 0.40 0.0174 Ceresan M 4.35 0.01 0.0004 Copper Sulfate 8.70 36.08 3.1374 Cotoran 4.35 1.50 0.0652 DOT Technical 39.13 10.73 4.2000 DEF 4.35 1.50 0.0652 Disulfoton 8.70 0.35 0.0304 Diuron 8.70 0.95 0.0826 DSMA 4.35 1.00 0.0435 Endrin 8.70 1.20 0.1043 EPN 4.35 1.50 0.0652 Malathion 8.70 2.50 0.2174 Ethyl Parathion 4.35 1.00 0.0435 Methyl Parathion 52.17 3.42 1.7848 MSMA 8.70 1.50 0.1304 Phorate 4.35 1.00 0.0435 Prometryne 4.35 2.00 0.0870 Thiram 4.35 0.02 0.0009 Toxaphene 17.39 3.45 0.6000 Trifluralin 47.83 0.61 0.2913 Vernolate 8.70 1.05 0.0913 ------- 60. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) ARIZONA - 9 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Azodrin 11.11 6.25 0.6944 Captan 11.11 0.01 0.0011 Ceresan L 11.11 0.01 0.0011 Derneton 11.11 0.13 0.0144 Dieldrin 11.11 0.01 0.0011 Diuron 11.11 1.00 0.1111 Endosulfan (I) 11.11 2.00 0.2222 Naled 11.11 0.50 0.0556 Ethyl Parathion 22.22 5.50 1.2222 Methyl Parathion 44.44 2.75 1.2244 PCNB 11.11 0.75 0.0833 Phorate 11.11 1.50 0.1667 Strobane 11.11 15.00 1.6667 Toxaphene 11.11 2.00 0.2222 Trifluralin 22.22 1.12 0.2500 ARKANSAS - 45 SITES • Pct. of Average Average Pesticide Name .. . Sites Appi. Rate (lbs/a) Amount (lbs/a) Aidrin 2.22 0.25 0.0056 Captari 13.33 0.03 0.0036 Ceresan M 2.22 0.01 0.0002 Chioroxuron 6.67 1.00 0.0667 2,4-D 2.22 0.05 0.0011 2,4-DB 2.22 1.75 0.0389 DEF 2.22 1.00 0.0222 Dinitrobutyiphenol 6.67 1.58 0.1056 Disulfoton 2.22 0.01 0.0002 Diuron 2.22 0.75 0.0167 OSMA 4.44 3.00 0.1333 Endrin 2.22 12.00 0.2667 Linuron 8.89 0.94 0.0833 NPA 6.67 0.54 0.0362 Nitralin 2.22 0.44 0.0098 Methyl Parathion Propanil 2.22 4.44 12.00 5.50 0.2667 0.2444 2,4,5-1 4.44 0.88 0.0389 Thiram 4.44 0.03 0.0016 Trifluralin 15.56 0.79 0.1222 ------- 61. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) CALIFORNIA - 66 SITES Pct. of Average Average — Pesticide Name Sites Appi. Rate (lbs/a) Amount (lbs/a) Aramite 3.03 2.35 0.0712 Atrazine 1.52 2.50 0.0379 Azinphosmethy l 3.03 0.48 0.0145 Bacillus Thuringiensis 3.03 9.50 0.2879 Benefin 1.52 1.83 0.0277 Binapacryl 1.52 2.12 0.0321 Bordeaux Mixtures 1.52 0.50 0.0076 Captan 1.52 2.30 0.0348 Carbaryl 6.06 10.76 0.6521 Carbophenothion . 3.03 1.75 0.0530 Ceresan RED 3.03 0.01 0.0003 Chiordane 1.52 5.00 0.0758 2,4-D 3.03 0.63 0.0189 DDT Technical 13.64 2.82 0.3844 Diazinon 6.06 0.99 0.0603 Dichiorpropene 4.55 8.6.7 0.3939 Dichiorprop 1.52 2.00 0.0303 Dicofol 7.58 2.59 0.1962 Dimethoate 1.52 1.00 0.0152 Dioxathion 3.03 2.60 0.0788 Diphenamid 1.52 2.62 0.0397 Disulfoton 3.03 4.00 0.1212 Diuron 1.52 0.75 0.0114 Dithane M—45 3.03 5.00 0.1515 Endosulfan (I) 7.58 0.99 0.0750 Ethion 3.03 1.38 0.0417 Malathion 4.55 1.65 0.0750 MCPA 3.03 0.76 0.0230 Mevinphos 9.09 1.48 0.1345 Mabam 1.52 3.50 0.0530 Naled 6.06 1.90 0.1152 Ethyl Parathion 6.06 2.03 0.1230 Methyl Parathion 455 6.10 0.2773 Propanil 3.03 3.63 0.1098 Simazine 1.52 3.75 0.0568 Simetryne 1.52 2.00 0.0303 Sulfur 7.58 35.79 2.7115 Tetradifon 3.03 0.50 0.0152 Toxaphene 6.06 9.75 0.5908 Trichiorofon 1.52 0.80 0.0121 Trifluralin 6.06 0.88 0.0530 ------- 62. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) COLORADO - 60 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Aidrin 3.33 0.08 0.0027 Carbaryl 1.67 1.00 0.0167 Ceresan M 1.67 0.01 0.0002 2,4-D 10.00 0.51 0.0508 2,4-OB 1.67 0.70 0.0117 Endrin 5.00 0.33 0.0167 Malathion 1.67 0.60 0.0100 Ethyl Parathion 1.67 0.25 0.0042 Picloram 1.67 1.00 0.0167 PMA 1.67 0.15 0.0025 CONNECTICUT - 2 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Atrazirte 50.00 2.50 1.2500 DELAWARE - 3 SITES Pesticide Name Pct. of Sites Average Appi. Rate Average Amount Captan 33.33 0.04 0.0133 Lindane 33.33 0.08 0.0267 ------- 63. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) FLORIDA - 15 SITES Pct. of Average Average Pesticide Name Sites Appi. Rate (lbs/a) Amount (lbs/a) Atrazine 6.67 0.80 0.0533 Azinphosmethyl 6.67 2.50 0.1667 Captan 6.67 7.50 0.5000 Carbophenothion 6.67 2.00 0.1333 Chlorobenzilate 13.33 1.31 0.1753 Copper Oxide 6.67 7.50 0.5000 Copper Oxychioride Sulfate 6.67 8.00 0.5333 2,4-D 6.67 1.50 0.1000 Dalapon 6.67 1.70 0.1133 DDT Technical 6.67 7.00 0.4667 Diazinon 6.67 2.90 0.1933 Dichiorpropene 6.67 194.40 12.9600 Dicofol 6.67 1.50 0.1000 Ethion 13.33 2.75 0.3667 Ferbam 6.67 9.12 0.6080 Mirex 6.67 0.01 0.0007 Ethyl Parathion 13.33 2.85 0.3800 Methyl Parathion 6.67 10.00 0.6667 Sulfur 6.67 46.50 3.1000 2,45-T 6.67 0.75 0.0500 TOE Technical 6.67 10.00 0.6667 Toxaphene 6.67 2.00 0.1333 Zineb 13.33 6.55 0.8733 ------- 64. TABLE ji. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) GEORGIA - 28 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Atrazine 7.14 3.00 0.2143 Azodrin 3.57 4.00 0.1429 Benefin 7.14 1.12 0.0800 Captan 39.29 0.08 0.0307 Ceresan RED 10.71 0.01 0.0011 Copper Oxychioride Sulfate 3.57 1.36 0.0486 Copper Sulfate 3.57 2.72 0.0971 2,4—D 10.71 0.50 0.0536 DDT Technical 21.43 14.18 3.0396 Disulfoton 3.57 2.00 0.0714 Folex 3.57 1.50 0.0536 Malathion 21.43 0.34 0.0732 Maleic Hydrazide 7.14 2.41 0.1725 Methoxychlor 28.57 0.02 0.0046 Mirex 3.57 0.01 0.0004 Ethyl Parathion 3.57 1.00 0.0357 Methyl Parathion 14.29 1.84 0.2632 PCNB 3.57 10.00 0.3571 Sulfur 7.14 40.20 2.8714 Thiram 10.71 0.04 0.0043 Toxaphene 17.86 14.45 2.5804 Trifluralin 7.14 1.25 0.0893 IDAHO - 33 SITES . PESTICIDE . NAME Pct. of Sites . Average Appl. Rate Average Amount (1 bsJ a) 12.12 6.06 15.15 3.03 12.12 3.03 6 . 06 3.03 3.03 3.03 3.03 6.06 6 . 06 0.01 0.01 0.01 2.00 2.12 0.50 0.50 0.01 0.83 0.38 0.01 1.87 0.56 0.0015 0.0006 0.0015 0.0606 0.2576 0.0152 0.0303 0. 0003 0.0252 0.0115 0.0003 0.1136 0.0342 Cap tan Ceresan M Ceresan L CIPC 2,4-D 2,4-08 DOT Tech. Diel drin Diquat EPIC Hexachl orobenzene R o - N e e t Tn 11 ural in ------- 65. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) ILLINOIS — 141 SITES PESTICIDE NAME Pct Si . of tes Average Appi . Rate (lbs/a) Average Amount (lbs/a) Aidrin 19. 15 1.52 0.2914 Amiben 7. 80 0.91 0.0707 Atrazine 9. 22 2.19 0.2023 Captan 49. 65 0.06 0.0317 Carbaryl 0. 71 4.80 O O34O CDAA 7. 80 1.51 0.1176 Ceresan Red 0. 71 0.01 0.0001 Ceresan L 0. 71 0.06 0.0004 Chevron RE-5353 1 . 42 2.56 0.0363 2,4-D 20. 57 0.42 0.0864 2,4-DB 2. 13 0.35 0.0075 Diazinon 3. 55 1 .86 0.0659 Dieldrin 2. 13 0.23 0.0050 Heptachior 9. 93 0.46 0.0455 Linuron 1. 42 0.66 0.0094 Malathion 39. 72 0.03 0.0104 Methoxychior 10. 64 0.01 0.0011 Ramrod . 7. 80 1.22 0.0955 Roundup 0. 71 0.07 0.0005 Silvex 0. 71 0.25 0.0018 Thiram 0. 71 0.01 0.0001 Trifluralin 2. 84 0.97 0.0277 Vernolate 0. 71 0.37 0.0026 ------- 66. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) INDIANA - 75 SITES Pestici de Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Aidrin 10.67 1.11 0.1187 Amiben 5.33 0.85 0.0453 Atrazine 13.33 1.79 0.2393 Captan 26.67 0.01 0.0027 Carbaryl 1.33 1.60 0.0213 CDAA 1.33 1.07 0.0143 Ceresan L 2.67 0.01 0.0003 2,4-D 10.67 0.35 0.0373 DDT Technical 1.33 0.01 0.0001 Dieldrin 1.33 0.01 0.0001 Difolatan 1.33 0.01 0.0001 Heptachior 5.33 0.32 0.0172 Malathion 17.33 0.01 0.0017 Methoxychior 4.00 0.01 0.0004 Methylmercury Dicyandiamide 2.67 0.01 0.0003 Ramrod 2.67 1.40 0.0373 Roundup 1.33 1.50 0.0200 Trifluralin 2.67 0.75 0.0200 Zineb 1.33 1.60 0.0213 ------- 61. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) IOWA - 151 SITES Pesticide Name Pct. of Sites Average Appl. Rate (lbs/a) Avi age Amount (lbs/a) Aidrin 8.61 0.68 0.0587 Amiben 8.61 1.12 0.0966 Atrazine 10.60 2.00 0.2123 Captan 2.65 0.03 0.0008 Carbaryl 0.66 1.00 0.0066 CDAA 1.32 1.50 0.0199 Chevron RE-5353 0.66 1.00 0.0066 2,4-D 20.53 0.62 0.1278 Diazinon 6.62 1.19 0.0791 Dicamba 0.66 0.50 0.0033 Dieldrin 0.66 0.15 0.0010 Fleptachior 4.64 0.35 0.0164 Lindane 1.32 0.06 0.0009 Ethyl Parathion 0.66 0.32 0.0021 Phorate 1.32 0.95 0.0126 Ramrod 3.97 2.02 0.0801 Randox T 0.66 0.40 0.0026 Thirani 0.66 0.06 0.0004 Trifluralin 2.65 0.47 0.0125 KENTUCKY - 31 SITES Pesticide Name Pct. of Sites Average Appl. Rate (lbs/a) Average Amount (lbs/a) Aldrin 9.68 2.00 0.1935 Atrazine 19.35 1.33 0.2581 2,4-D 3.23 0.50 0.0161 Dalapon 3.23 1.50 0.0484 DOT Technical 3.23 3.00 0.0968 EPTC 3.23 1.50 0.0484 ------- 68. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) LOUISANA - 27 SITES Pesticide Name Pct. of Sites Average 4 Appl. Rate (lbs/a) Average Amount (lbs/a) Aidrin 22.22 0.08 0.0178 Captan 3.70 0.25 0.0093 Carbaryl 3.70 12.00 0.4444 Ceresan L 3.70 0.01 0.0004 Cotoran 3.70 1.00 0.0370 2 4—D 11.11 1.58 0.1759 Dalapon 3.70 2.00 0.0741 DDT Technical 7.41 23.25 1.7222 DEF 3.70 9.00 0.3333 Dinietan 3.70 0.01 0.0004 Malathion 3.70 1.00 0.0370 Methyimercury Dicyandiamide 3.70 0.01 0.0004 Methylmercury Nitrile 3.70 0.01 0.0004 MSMA 3.70 1.50 0.0556 Nitrate 22.22 72.00 16.0000 Methyl Parathion 7.41 7.20 0.5333 Propanil 11.11 3.17 0.3519 Silvex 3.70 1.00 0.0370 Strobane 3.70 18.00 0.6667 TCA 3.70 2.00 0.0741 Toxaphene 3.70 75.00 2.7778 Trifluralin 3.70 1.00 0.0370 MAINE - 8 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Dalapon 12.50 4.90 0.6125 Dinitrobutyiphenol 37.50 1.37 0.5125 Disulfoton 25.00 8.50 2.1250 Malathion 12.50 1.00 0.1250 Maneb 12.50 0.70 0.0875 Sodium Arsenite 25.00 8.80 2.2000 ------- 69. TABLE i. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) MARYLAND - 13 SITES Pesticide Name Pct. of Sites Average Appl. Rate (lbs/a) Average Amount (lbs/a) Atrazine 30.77 1.26 0.3885 Captan 30.77 0.03 0.0100 2,4-0 15.38 0.54 0.0838 Die ldrin 7.69 0.01 0.0008 Lindane 15.38 0.01 0.0015 Malathion 23.08 0.01 0.0023 Methoxychior 7.69 0.01 0.0008 Thiram 7.69 0.01 0.0008 MASSACHUSETTS - 2 SITES . Pesticide Name P t. of Sites A Fag Appi. Rate (lbs/a) Average Amount (lbs/a) Carbaryl 50.00 0.83 0.4150 Dinitrobutyiphenol 50.00 3.06 1.5300 Disulfoton 50.00 1.50 0.7500 Dithane M-45 50.00 12.40 6.2000 Maleic H,dpazide Oxydemetonmethyl Ethyl Parathion 50.00 50.00 50.00 2.32 0.25 0.53 1.1600 0.1250 0.2650 ------- 70. TABLE SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) MICHIGAN — 51 SITES Pesticide Name Pct. of Sites Average Appl. R ate (lbs/a) Average /\mount (lbs/a) Atrazine 11.76 1.49 0.1753 Azinphosmethy l 1.96 8.00 0.1569 Captan 1.96 0.01 0.0002 CDAA 1.96 6.00 0.1176 Ceresan Red 1.96 0.01 0.0002 CIPC 1.96 1.00 0.0196 Chioroxuron 3.92 2.63 0.1029 2,4-D 9.80 0.53 0.0524 DOT Tech. 1.96 1.50 0.0294 Dinitrobutyiphenol 1.96 11.25 0.2206 Diuron 1.96 2.00 0.0392 EPIC 1.96 2.00 0.0392 Herbisan 1.96 10.00 0.1961 Malathion 3.92 0.50 0.0198 Methoxychlor 1,96 0.01 0.0002 ------- 71. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) MISSISSIPPI - 29 SITES Pct. of Average A rage Pesticide Name Sites Appi. (lbs Rate /a) Amount (lbs/a) Azinphosmethy l 3.45 0.25 0.0086 Azodrin 6.90 0.76 0.0524 Bidrin 6.90 0.03 0.0024 Captan 24.14 0.09 0.0210 Ceresan M 3.45 0.01 0.0003 Ceresan Red 27.59 0.02 0.0045 Ceresan L 3.45 0.01 0.0003 Chioroneb 17.24 0.06 0.0100 Cotoran 13.79 0.47 0.0652 DDT Technical 31.03 3.47 1.0759 DEF 20.69 0.82 0.1690 Disulfoton 31.03 0.05 0.0152 Diuron 17.24 0.63 0.1079 OSMA 10.34 0.70 0.0728 Endrin 3.45 2.00 0.0690 Linuron 3.45 0.42 0.0145 Malathion 6.90 1.40 0.0969 Methoxychior 3.45 0.01 0.0003 Mirex 6.90 0.01 0.0007 MSMA 10.34 1.44 0.1486 Norea 3.45 0.33 0.0114 Nitralin 13.79 0.99 0.1372 Methyl Parathion 41.38 2.14 0.8841 PCNB 10.34 0.13 0.013] Sodium Chlorate 3.45 6.00 0.2069 Toxaphene 34.48 7.50 2.5862 Trifluralin 37•93 0.85 0.3241 Vernolate 3.45 0.30 0.0103 ------- 72. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) MISSOURI - 81 SITES Pesticide Name Pct. of Sites Average App]. Rate (lbs/a) Average Amount (lbs/a) Aldrin 4.94 1.65 0.0815 Amiben 4.94 1.15 0.0568 Atrazine 12.35 1.87 0.2315 Bidrin 1.23 0.10 0.0012 Captan 1.23 0.01 0.0001 Ceresan M 1.23 0.01 0.0001 2,4-D 11.11 0.77 0.0856 2,4-DB 2.47 0.25 0.0062 Diazinon 1.23 0.93 0.0115 Dinitrobutyiphenol 2.47 0.53 0.0131 Heptachlor 1.23 0.19 0.0023 Linuron 2.47 0.37 0.0091 NPA 2.47 1.07 0.0264 Methyl Parathion 1.23 0.50 0.0062 Propazine 1.23 2.00 0.0247 Ramrod 1.23 1.10 0.0136 Trifluralin 7.41 0.91 0.0673 Vernolate 2.47 1.38 0.0340 ------- 73. TABLE jj. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) NEBRASKA - 103 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Amiben 0.97 2.50 0.0243 Atrazine 4.85 0.82 0.0400 Captan 17.48 0.04 0.0069 Ceresan Red 0.97 0.01 0.0001 Ceresan L 0.97 0.01 0.0001 Chevron RE-5353 1.94 1.25 0.0243 2,4-D 14.56 0.44 0.0644 Diazinon 4.85 0.98 0.0476 Dieldrin 3.88 0.01 0.0004 Disulfoton 0.97 0.22 0.0021 EPIC 0.97 3.00 0.0291 Malathion 17.48 0.01 0.0017 Methoxychior 1.94 0.01 0.0002 Methylmercury Dicyandiamide 4.85 0.01 0.0005 Nabam 0.97 0.01 0.0001 Norea 0.97 0.60 0.0058 Ethyl Parathion 3.88 0.50 0.0194 Phorate 0.97 0.90 0.0087 Ramrod 0.97 0.83 0.0081 Thiram 4.85 0.03 0.0014 NEVADA - 2 SITES NO PESTICIDES USED NEW HAMPSHIRE - 2 SITES NO PESTICIDES USED NEW JERSEY - 5 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) 2,4-D 40.00 0.31 0.1240 Monuron 20.00 1.60 0.3200 Ethyl Parathion Sulfur 20.00 20.00 0.54 9.00 0.1080 1.8000 ------- 74. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) NEW MEXICO - 10 SITES Pct. of Average Average — Pesticide Name Sites Appi. Rate Amount (lbs/a) (lbs/a) Azodrin 10.00 1.50 0.1500 Carbaryl 10.00 2.50 0.2500 DOT Tech. 10.00 1.00 0.1000 Diuron 20.00 1.12 0.2250 Ethyl Parathion 10.00 2.50 0.2500 Toxaphene 10.00 1.00 0.1000 NEW YORK - 38 SITES Pesticide Name Pct. of Sites Average Appl. Rate (lbs/a) Average Amount (lbs/a) Atrazine 23.68 1.36 0.3211 Azinphosmethy l 5.26 1.15 0.0605 Captan 13.16 0.87 0.1150 Carbaryl 5.26 1.55 0.0816 Copper Sulfate 2.63 3.00 0.0789 2,4-D 7.89 021 0.0166 Dalapon 2.63 2.50 0.0658 DOT Tech. 5.26 1.35 0.0711 Demeton 2.63 0.04 0.0011 Diazinon 2.63 1.00 0.0263 Dichione 2.53 2.20 0.0579 Dinitrobutyiphenol 5.26 15.22 0.8013 Diuron 5.26 2.40 0.1263 Endosulfan (I) 5.26 0.95 0.0500 Lead Arsenate 2.63 3.80 0.1000 Malathion 5.26 0.01 0.0005 MCPA 5.26 0.33 0.0176 Methcxych lor 2.63 0.01 0.0003 Methylmercury Dicyasid1 mide 10.53 0.01 0.0011 Nabam 2.63 2.40 0.0632 Nitrate 7.89 26.17 2.0658 Oxydernetonmethyl 2.63 0.15 0.0039 Ethyl Parathion 5.26 0.45 0.0239 Phosphamidon 2.63 0.15 0.0039 Sodium Arsenite 2.63 0.90 0.0237 ------- 75. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) NORTH CAROLINA - 29 SITES Pct. of Average Average Pesticide Name Sites Appl. Rate (lbs/a) Amount (lbs/a) Aldrin 6.90 1.75 0.1207 Atrazine 6.90 2.75 0.1897 Carbaryl 20.69 1.43 0.2966 Ceresan RED 3.45 0.10 0.0034 Chromophon 3.45 0.15 0.0052 Copper Carbonate 3.45 0.60 0.0207 Copper-8-Quino lino late 3.45 0.01 0.0003 2,4-0 20.69 1.00 0.2079 2,4-08 3.45 0.07 0.0024 DOT Technical 13.79 0.70 0.0962 Diazinon 13.79 1.12 0.1545 Dicamba 3.45 1.20 0.0414 Dichiorpropene 3.45 20.00 0.6897 Dieldrin 6.90 1.25 0.0866 Dinitrobutyiphenol 3.45 1.50 0.0517 Diphenamid 6.90 1.07 0.0741 EPIC 3.45 4.00 0.1379 Ethylene Dibromide 3.45 6.00 0.2069 Lindane 3.45 0.01 0.0003 Maleic Hydrazide 10.34 0.47 0.0486 Ethyl Parathion 6.90 0.50 0.0345 Methyl Parathion 3.45 0.83 0.0286 Phorate 6.90 1.13 0.0783 Sulfur 3.45 11.10 0.3828 IDE Technical 10.34 0.26 0.0272 Thiram 6.90 0.01 0.0007 Toxaphene 6.90 8.65 0.5966 Trifluralin 3.45 0.57 0.0197 Vernolate 6.90 1.85 0.1276 ------- 76. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) NORTH DAKOTA - 159 SITES Pct. of Average Average Pesticide Name Sites Appi. Rate Amount _________________________________ ( lbs/a) (lbs/a ) Barban 1.26 0.17 0.0021 Captan 0.63 0.01 0.0001 Ceresan M 063 0.01 0.0001 Ceresan Red 2.52 0.01 0.0003 Ceresan 1 5.03 0.01 0.0005 2,4-D 42.14 0.40 0.1673 Dicamba 1.89 0.08 0.0016 Disulfoton 0.63 3.00 0.0189 Eddrin 0.63 0.25 0.0016 Heptach lor 1.26 0.04 0.0005 Lindane 1.89 0.02 0.0004 Malathion 0.63 0.01 0.0001 Maneb 0.63 1.50 0.0094 MCPA 5.66 030 0.0171 Methylmercury Dicyandiamide 41.51 0.01 0.0042 Phenylmercury Urea 0.63 0.01 0.0001 PMA 1.26 0.01 0.0001 Polyram 0.63 10.40 0.0654 ------- 77. TABLE ii. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING 0F4 CROPLANO (CaNT) OHIO - 66 SITES Pct. of Average Average Pesticide Name Sites Appi. Rate Amount (lbs/a) (lbs/a) AIdrin 6.06 3.00 0.1818 Amlben 3.03 1.75 0.0530 Atrazine 12.12 1.20 0.1455 Captan 12.12 0.02 0.0021 Ceresan M 1.52 0.01 0.0002 Copper Sulfate 1.52 1.60 0.0242 2,4-D 19,70 0.44 0.0859 Dalapon 1.52 1.50 0.0227 Diazlnon 1.52 0.50 0.0076 Dfch lone 1.52 1.80 0.0273 D leldrln 1.52 0.01 0.0002 DInocap 1.52 0.01 0.0002 Dithane M-45 1.52 0.30 0.0045 Lfnuron 1.52 0.75 0.0114 Malathion 10.61 0.01 0.0011 Maneb 3.03 0.75 0.0227 Methylmercury Dicyandiamlde 1.52 0.05 0.0008 NPA 1.52 2.27 0.0344 PCP 1.52 1.50 0.0227 Plcloram 1.52 0.25 0.0038 Randox T 1.52 1.40 0.0212 Sulfur 1.52 25.00 0.3788 TDE Technical 1.52 0.80 0.0121 Trifluralln 1.52 1.00 0.0152 Zlram 1.52 0.80 0.0121 ------- 78. TABLE 11, SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) OKLAHOMA - 65 SITES Pct. of Average Average Pesticide Name Sites Appi. Rate (lbs/a) Amount (lbs/a) Cacodylic Acid 1.54 0.01 0.0002 Captan 462 0.01 0.0005 Carbaryl 1.54 0.30 0.0046 Ceresan M 20.00 0.01 0.0020 Ceresan RED 12.31 0.01 0.0012 Chioroneb 1.54 0.01 0.0002 2,4-D 6.15 0.86 0.0531 2,4-DB 4.62 0.50 0.0231 Dieldrin 4.62 0.01 0.0005 Dimethoate 1.54 0.50 0.0077 Dinitrobutyiphenol 1.54 2.00 0.0308 Disulfoton 7.69 0.58 0.0445 Falone 1.54 2.00 0.0308 Methylmercury Dicyandiamide 1.54 0.01 0.0002 Nitrate 10.77 16.64 1.7923 Ethyl Parathion 3.08 075 0.0231 Methyl Parathion 12.31 0.65 0.0800 PCNB 1.54 0.01 0.0002 Phosphamidon 1.54 0.12 0.0018 Thiram 1.54 0.01 0.0002 Trifluralin 462 1.10 0.0508 ------- 79. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (coNT) PENNSYLVANIA - 31 SITES Pesticide Name Pct. of Sites Averagi Appi. Rate Average Amount (lbs/a) Atrazine 19.35 1.57 0.3032 Azinphosmethyl 3.23 0.50 0.0161 Captan Carbaryl 3.23 3.23 0.01 0.32 0.0003 0.0103 Chiordane 3.23 1.20 0.0387 Copper Sulfate 3.23 1.70 0.0548 2,4-D 16.13 0.92 0.1484 DDT Tech. 9.68 0.83 0.0806 Dicofol 3.23 0.42 0.0135 Dinitrobutyiphenol Dinitrocresol 3.23 3.23 0.82 3.00 0.0265 0.0968 Dinocap 3.23 0.44 0.0142 Diuron 3.23 0.32 0.0103 Lindane 3.23 0.02 0.0006 Linuron 3.23 1.00 0.0323 Maneb 3.23 7.00 0.2258 Methyl Demeton 3.23 1 ,50 0.0484 Nitrate Ethyl Parathion 3.23 6.45 100.00 0.45 3.2258 0.0290 Phorate 3.23 12.50 0.4032 Simazlne 3.23 0.40 0.0129 Sodium Arsenite 3.23 2.50 0.0806 Trifluralln 3.23 0.75 0.0242 RHODE ISLAND - 1 SITE Pesticide Name Pct. of Si tes 100.00 100.00 100.00 100.00 100.00 100.00 Average Appi. Rate (lbs/a) 0.80 2.00 2.00 6.40 5.00 0,80 A verage Amount (lbs/a) 0.8000 2.0000 2.0000 6.4000 5.0000 0 .8000 Carba ryl DOT Tech. Dl sul foton Dithane M-45 EPTC Oxydemetomnethyl ------- 80. TABLE SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) SOUTH CAROLINA — 17 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Azodrin 5.88 0.40 0.0235 Carbaryl 17.65 7.19 1.2682 2,4-D 11.76 0.40 0.0471 DOT Technical 29.41 2.46 0.7229 DEF 5.88 0.20 0.0118 Demeton 5.88 1.60 0.0941 Diuron 5.88 0.72 0.0424 MSMA 5.88 0.45 0.0265 Nabam 5.88 1.20 0.0706 Ethyl Parathion 11.76 0.51 0.0600 Methyl Parathion 11.76 5.10 0.6000 Phorate 5.88 0.20 0.0118 TOE Technical 5.88 2.25 0.1324 Toxaphene 17.65 6.17 1.0894 Trifluralin 35.29 0.21 0.0753 SOUTH DAKOTA - 106 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average — Amount (lbs/a) . Atrazine 1.89 1.40 — 0.0264 Captan 10.38 0.01 0.0010 Carbaryl 0.94 1.05 0.0099 Ceresan M 0.94 0.01 0.0001 2,4 -D 26.42 0.47 0.1230 Dalapon 0.94 0.74 0.0070 Dieldrin 1.89 0.01 0.0002 Heptachior 3.77 0.02 0.0007 Lindane 0.94 0.01 0.0001 Malathion 6.60 0.01 0.0007 MCPA 4.72 0.20 0.0095 Methoxychlor 3.77 0.01 0.0004 Methylmercury Dicyandiamide 10.38 0.01 0.0010 Phorate 0.94 0.60 0.0057 Ramrod 0.94 1.00 0.0094 Thiram 0.94 0.01 0.0001 ------- 81. TABLE ] . SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) TENNESSEE - 28 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Atrazine 21.43 1.98 0.4250 Bidrin 3.57 0.54 0.0193 Captan 10.71 0.01 0.0011 Ceresan M 7.14 0.01 0.0007 Ceresan Red 3.57 0.01 0.0004 Cotoran 7.14 0.78 0.0557 2,4-DB 7.14 0.43 0.0307 Disulfoton 3.57 0.01 0.0004 Diuron 7.14 0.06 0.0046 Linuron 7.14 0.75 0.0536 Malathion 3.57 0.01 0.0004 Methylmercury Dicyandiamide 3.57 0.01 0.0004 MSMA 3.57 0.46 0.0164 Nitrate 7.14 250.00 17.8571 Nitralin 3.57 0.15 0.0054 PCNB 3.57 0.01 0.0004 Trifluralin 14.29 0.38 0.0543 UTAH - 12 SITES Pesticide Name Pct. of Sites Average Appl. Rate (lbs/aj Average Amount (lbs/a) Dichioropropene 8.33 180.00 15.0000 Heptachior 8.33 0.34 0.0283 VERMONT - 5 SITES NO PESTICIDES USED ------- 82, TABLE 11• SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) VIRGINIA - 20 SITES Pesticide Name Pct. or Sites Average Appi. Rate (lbs/a) Average Amount (lbs/a) Atrazthe 5.00 4.00 0.2000 Azinphosmethyl 5.00 2.00 0.1000 Carbaryl 5.00 2.75 0.1375 Copper Oxide 10.00 2.60 0.2600 2,4-D 10.00 1.12 0.1125 2,4-DB 5.00 0.20 0.0100 DOT Tech. 5.00 2.00 0.1000 Diazinon 5.00 0.50 0.0250 Dinitrobutyiphenol 5.00 1.50 0.0750 Diphenamid 5.00 4.00 0.2000 Disulfoton 10.00 6.80 0.6800 Ethylene Dibromide 5.00 23.24 1.1620 Dichioropropane 5.00 54.43 2.7215 Malathion 5.00 0.95 0.0475 Methoxychior 5.00 1.00 0.0500 Ethyl Parathion 5.00 6.00 0.3000 Phorate 5.00 3.00 0.1500 Sulfur 5.00 57.00 2.8500 Vernolate 5.00 2.40 0.1200 WASHINGTON - 2 SITES Pesticide Name Pct. of Sites Ave age Appi. Rate (lbs/a) Average Amount (lbs/a) Ceresan L 50.00 0.01 0.0050 2,4-D 50.00 1.00 0.5000 WEST VIRGINIA - 5 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (1bs/ ) Azinphosmethyl 20.00 0.50 0.1000 Ethyl Parathion 20.00 1.50 0.3000 ------- 83. TABLE 11. SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON CROPLAND (CONT) WISCONSIN - 68 SITES Pesticide Name Pct. of Sites Average Appi. Rate (lbs/a) Average Amount (lbsJa) Atrazine 29.41 2.61 0.7684 Ceresan Red 1.47 0.01 0.0001 2,4-D 2.94 0.75 0.0221 Ramrod 1.47 2.00 0.0294 Trifluralin 1.47 2.00 0.0294 WYOMING - 17 SITES NO PESTICIDES USED ------- 84. TABLE 12• SUMMARY OF PESTICIDES USED IN YEAR OF SAMPLING ON NONCROPLAND ARIZONA - 43 SITES NO PESTICIDES USED GEORGIA - 15 SITES Pct. of Average Average Pesticide Name Sites • Appi. Rate (lbs/a) Amount (lbs/a) Mirex 6.67 0.01 — 0.0007 IDAHO - 26 SITES Pesticide . Name Pct. of Sites verage App]. Rate {1bsJ ) Average Amount ( lbsLa)_ Malath ion 3.85 0.61 0.0235 IOWA - 7 SITES NO PESTICIDES USED MAINE — 11 SITES NO PESTICIDES USED MARYLAND - 3 SITES NO PESTICIDES USED NEBRASKA - 19 SITES ‘ Pct. of Average Average Pesticide Name Sites Appi. Rate (lbs/a) Amount (lbs/a) 2,4-0 5.26 2.00 — 0.1053 VIRGINIA - 14 SITES NO PESTICIDES USED WASHINGTON - 11 SITES NO PESTICIDES USED WEST VIRGINIA - 9 SITES NO PESTICIDES USED WYOMING - 37 SITES NO PESTICIDES USED ------- 85. TABLE 13. COMPARISON OF RESIDUES WITH USE RECORDS FOR STATES WITH HIGHEST ARSENIC RESIDUES State Arkans as Kentucky New England New York North Dakota Ohio Pennsyl vani a Average Pct. öf Amount Sites (lbs/a) 0.131 44 No Arsenic Compounds Used 0.882 10.0 O.12 5.3 No Arsenic Compounds Used No Arsenic Compounds Used 0.082 3.2 Mean Pest. Pct. of Level Times Found (ppm) 9.0 100.0 8.4 100.0 10.2 100.0 9.4 94.6 8.5 100.0 11.2 100.0 10.8 100.0 1 Calculated for DSMA 2 Calculated for Sodium Arsenite Calculated for Sodium Arsenite and Lead Arsenate ------- 86. TABLE 14. COMPARISON OF RESIDUES WITH USE RECORDS FOR STATES WITH HIGHEST — DDTR RESIDUES State Average Amount lbs/a) Pct. of Sites Mean Pest. Pct. of Level Times Found (ppm) Alabama 4.20 39.1 1.13 90.9 California 0.38 13.6 1.47 84.6 Michigan 0.03 2.0 2.09 23.5 Mississippi 1.07 31.0 2.06 89.7 South Carolina 0.72 29.4 1.17 88.2 ------- 87. TABLE 15. COMPARISON OF RESIDUES WITH USE RECORDS FOR STATES WITH HIGHEST — DIELDRIN RESIDUES State Average Amount (lbs/a) Pct. of Sites Mean Pest. Level (ppm) Pct. of Times Found Florida 0.00 0.0 0.08 38.9 Illinois 0.29 (A) 0.01 (D) 19.2 2.1 0.11 61.3 Iowa 0.06 (A) <0.01 CD) 8.6 0.7 0.06 53.6 Kentucky 0.19 (A) 9.7 0.06 54.8 North Carolina 0.12 (A) 0.09 (D) 6.9 6.9 0.08 32.3 Virginia/W. Virginia 0.00 0.0 0.07 25.9 (A) = Aldrin (0) = Die ldrin ------- 88. TABLE l FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL ALABAMA Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic 10 1.70 1.45 1.18 20 2.33 2.07 1.78 30 2.94 2.67 2.38 40 3.62 3.33 3.03 50 4.42 4.09 3.76 60 5.47 5.01 4.63 70 6.94 6.24 5.71 80 9.25 8.07 7.23 90 13.91 11.52 9.96 95 19.53 15.46 12.93 pp DDE 10 20 30 40 50 60 70 80 90 95 0.02 0.03 0.04 0.07 0.10 0.16 0.28 0.58 1.76 4.48 0.01 0.02 0.03 0.04 0.07 0.11 0.18 0.31 0.68 1.31 0.00 0.01 0.01 0.02 0.04 0.07 0.12 0.21 0.40 0.67 op’DDT 10 20 30 40 50 60 70 80 90 95 0.00 0.01 0.01 0.02 0.03 0.04 0.08 0.16 0.49 1.21 0.00 0.00 0.01 0.01 0.02 0.03 0.06 0.12 0.29 0.62 0.00 0.00 0.00 0.01 0.01 0.03 0.05 0.09 0.20 0.38 ------- 89. TABLE 16 ALABAMA (CONT) FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.03 0.05 0.10 0.16 0.27 0.45 0.83 1 .75 5.15 12.69 0.05 0.11 0.19 0.30 0.48 0.77 1 .34 2.66 7.09 16.12 0.00 0.01 0.01 0.01 0.02 0.02 0.04 0.07 0.15 0.31 0.01 0.04 0.07 0.12 0.21 0.35 0.60 1.16 2.87 6.06 0.03 0.08 0.14 0.23 0.38 0.61 1 .01 1 .84 4.20 8.33 0.00 O .00 0.01 0.01 0.01 O .02 0.03 0.05 0.11 0.20 0.01 0.02 0.04 0.09 0.15 0.27 0.46 0 .84 1 .88 3.59 0.02 0.05 0.09 0.17 0.29 O .48 O . 79 1.38 2.87 5.19 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.05 0.09 0.15 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) pp’DDT DDT R pp’TDE ------- 90. TABLE l6 ARKANSAS FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) ‘ . Pesticide Upper Percentile Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Arsenic 10 339 3.25 3.09 20 4.42 4.28 4.13 30 5.37 5.22 5.08 40 6.34 6.19 6.05 50 7.42 7.26 7.10 60 8.72 8.51 8.32 70 10.38 10.10 9.84 80 12.75 12.32 11.94 90 17.01 16.25 15.58 95 21.59 20.41 19.39 pp’DDE 10 20 30 0.00 0.00 0.01 0.00 0.00 0.01 0.00 0.00 0.00 40 50 60 70 80 90 95 0.01 0.02 0.04 0.08 0.19 0.61 1.60 0.01 0.02 0.04 0.08 0.17 0.50 1.22 0.01 0.02 0.03 0.07 0.15 0.42 0.97 op’DDT 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.06 0.22 0.67 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.05 0.16 0.41 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.12 0.28 ------- 91. TABLE ‘ FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) ARKANSAS (CONT) Upper Residue Lower Pesticide P ercentile Limit (ppm) Level (ppm) Limit (ppm) pp’DDT 10 0.00 0.00 0.00 20 0.01 0.00 0.00 30 0.01 0.01 0.01 40 0.02 0.02 0.01 50 0.04 0.03 0.03 60 0.07 0.06 0.05 70 0.14 0.12 0.11 80 0.31 0.26 0.23 90 1.01 0.79 0.64 95 2.71 1.95 1.48 DDTR 10 0.01 0.00 0.00 20 0.02 0.01 0.01 30 0.03 0.03 0.02 40 0.06 0.05 0.04 50 0.10 0.09 0.08 60 0.18 0.17 0.15 70 0.35 0.32 0.29 80 0.75 0.66 0.58 90 2.24 1.83 1.54 95 5.53 4.27 3.41 Dieldrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.01 0.00 0.00 70 0.01 0.01 0.00 80 0.03 0.02 0.01 90 0.09 0.05 0.04 95 0.41 0.14 0.09 ------- 92. TABLE 16, FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLP ND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (cONT) ARKANSAS (cONT) Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) pp’TDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.01 0.01 0.00 50 0.01 0.01 0.01 60 0.02 0.02 0.01 70 0.04 0.03 0.03 80 0.09 0.07 0.06 90 0.28 0.19 0.14 95 0.78 0.45 0.30 Toxaphene 10 0.02 0.00 0.00 20 0.04 0.01 0.00 30 0.07 0.01 0.00 40 0.10 0.02 0.00 50 0.15 0.04 0.00 60 0.21 0.08 0.00 70 0.31 0.14 0.01 80 0.51 0.29 0.04 90 1.20 0.77 0.37 95 4.68 1.72 1.11 ------- 93. TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL CALl FORNIA INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 1 .58 2.17 2.73 3.33 4.02 4 .86 5.98 7.65 10.77 14.29 0.00 O .00 O .00 O .00 0.00 0.01 0.01 0.02 O .05 0.13 0.00 0.01 0.01 0.03 0.05 0.09 0.17 0.37 1.12 2.80 1 .50 2.09 2.65 3.25 3.92 4.74 5.81 7.36 10.24 13.44 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.08 0.00 0.01 0.01 0.02 0.04 O .08 0.15 0.33 O .96 2.31 1 .42 2.01 2.56 3.16 3.83 4.62 5.65 7.11 9.77 12.69 O .00 0.00 0.00 0.00 0.00 O .00 0.00 0.01 0.03 0.05 O .00 O .00 0.01 0.02 0.04 0.07 0.14 O .30 O .83 1 .93 Upper Re i due Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic op DDE pp DDE ------- 94. TABLE 16 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL CALIFORNIA (CONT) INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) Pesticide Upper Percentile Limit (ppm) Residue Level (ppm) Lower Limit (ppm) op’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0,00 0.00 50 0.01 0.01 0.00 60 0.01 0.01 0.01 70 0.03 0.02 0.02 80 0.06 0.05 0.04 90 0.20 0.16 0.13 95 0.58 0.41 0.31 pp’DDT 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.01 0.02 0.04 0.07 0.14 0.32 1.03 2.73 0.00 0.00 0.01 0.02 0.03 0.06 0.13 0.29 0.92 2.37 0.00 0.00 0.01 0.02 0.03 0.06 0.12 0.27 0.83 2.07 DDTR 10 20 30 40 50 60 70 80 90 95 0.01 0.02 0.04 0.07 0.14 0.26 0.51 1.15 3.61 9.30 0.01 0.02 0.03 0.07 0.13 0.24 0.46 1.02 3.07 7.60 0.00 0.01 0.03 0.06 0.12 0.22 0.43 0.92 2.65 6.31 ------- 95. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) CALIFORNIA (cONT) Lower Limit (ppm) Pesticide P Up er ercentile Limit (ppm) Residue Level (ppm) Dieldrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.00 0.00 0.00 80 0.01 0.01 0.00 90 0.04 0.02 0.02 95 0.21 0.08 0.05 op’TDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.01 0.01 0.00 80 0.02 001 0.01 90 0.07 0.05 0.04 95 0.25 0.17 0.13 pp’TDE 10 000 0.00 0.00 20 0.00 0.00 0.00 30 0.01 0.00 0.00 40 0.01 0.01 0.01 50 0.02 0.01 0.01 60 0.03 0.02 0.02 70 0.05 0.04 0.04 80 0.10 0.09 0.08 90 0.26 0.22 0.19 95 0.61 0.48 0.39 ------- 96. TABLE 16 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) CALIFORNIA (CONT) Pesticide Percentile Upper Limit (ppm) Residué Level (ppm) Lower Limit (ppm) Toxaphene 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.01 0.01 0.02 004 0.08 0.16 0.47 1.86 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.08 0.32 0.94 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.18 0.62 ------- 97. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL COLORADO Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Arsenic 10 20 30 40 50 60 70 80 90 95 2.45 2.96 3.39 3.81 4.26 4.77 5.39 6.22 7.61 8.98 2.39 2.90 3.33 3.76 4.20 4.70 5.30 6.10 7.41 8.70 2.32 2.84 3.28 3.70 4.15 4.64 5.22 5.99 7.23 8.44 ------- 98. TABLE lb 1 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) FLORIDA Upper Residue Lower Pesticide P ercentile Limit (ppm) Level (ppm) Limit (ppm) Arsenic 10 0.28 0.23 0.17 20 0.37 0.32 0.25 30 0.45 0.40 0.34 40 0.54 0.49 0.43 50 0.64 0.58 0.53 60 0.78 0.70 0.64 70 0.97 0.86 0.78 80 1.27 1.09 0.96 90 1.89 1.50 1.28 95 2.62 1.96 1.60 Chiordane 10 0.00 0.00 0.00 20 0.01 0.00 0.00 30 0.02 0.01 0.00 40 0.03 0.02 0.01 50 0.05 0.03 0.02 60 0.09 0.06 0.03 70 0.17 0.12 0.08 80 0.40 0.27 0.19 90 1.61 0.81 0.52 95 5.38 2.00 1.10 pp t DDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.01 0.00 0.00 40 0.01 0.01 0.01 50 0.03 0.02 0.01 60 0.05 0.04 0.03 70 0.10 0.07 0.05 80 0.24 0.15 0.11 90 0.92 0.47 0.29 95 2.88 1.17 0.64 ------- 99. TABLE 16, FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPL/\ND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) FLORIDA (CONT) Pesticide Upper Percentile Limit Residue Level Lower Limit (ppm) (ppm) (ppm) op’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.01 0.00 0.00 60 0.02 0.01 0.00 70 0.03 0.02 0.01 80 0.08 0.05 0.03 90 0.45 0.18 0.10 95 1.98 0.50 0.24 pp’DDT 10 20 30 40 50 60 70 80 90 95 0.01 0.01 0.02 0.04 0.07 0.13 0.26 0.65 2.43 7.44 0.00 0.01 0.01 0.03 0.05 0.09 0.17 0.37 1.07 2.57 0.00 0.00 0.01 0.01 0.03 0.06 0.12 0.25 0.62 1.29 DDTR 10 20 30 40 50 60 70 80 90 95 0.00 0.01 0.03 0.05 0.10 0.19 0.39 0.94 3.34 9.62 0.00 0.01 0.02 0.04 0.08 0.15 0.31 0.70 2.16 5.50 0.00 0.01 0.01 0.03 0.06 0.12 0.25 0.54 1.52 3.53 ------- 100. TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) FLORIDA (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) pp TDE 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.01 0.02 0.03 0.06 0.18 1.12 5.34 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.09 0.32 0.92 0.00 0 ,00 0.00 0.00 0.00 0.01 0.02 0.05 0.16 0.37 ------- 101. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) GEORGI A Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit — (ppm) Arsenic 10 0.74 0.68 0.62 20 1.03 0.96 0.90 30 1.31 1.24 1.17 40 1.61 1.54 1.47 50 1.96 1.88 1.80 60 2.41 2.30 2.21 70 3.01 2.86 2.73 80 3.93 3.68 3.48 90 5.71 5.23 4.85 95 7.78 6.99 6.37 pp’DDE 10 0.01 0.00 0.00 20 0.01 0.01 0.01 30 0.02 0.02 0.01 40 0.04 0.03 0.03 50 0.06 0.05 0.04 60 0.10 0.08 0.07 70 0.16 0.13 0.11 80 0.31 0.24 0.19 90 0.78 0.53 0.39 95 1.68 1.03 0.70 op’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.01 0.00 0.00 40 0.01 0.01 0.00 50 0.01 0.01 0.01 60 0.02 0.02 0.01 70 0.05 0.03 0.02 80 0.10 0.07 0.05 90 0.38 0.20 0.13 95 1.16 0.48 0.27 ------- 102. TABLE FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) GEORGIA (CONT) Upper Pesticide Percentile Limit Residue Level Lower Limit (ppm) (ppm) (ppm) pp’DDT 10 0.02 0.01 0.00 20 0.04 0.02 0.01 30 0.06 0.04 0.03 40 0.10 0.08 0.05 50 0.17 0.13 0.09 60 0.28 0.22 0.17 70 0.51 0.38 0.29 80 1.09 0.72 0.53 90 3.28 1.79 1.17 95 8.26 3.78 2.22 DDTR 10 0.02 0.01 0.01 20 0.06 0.04 0.02 30 0.10 0.07 0.05 40 0.18 0.13 0.09 50 030 0.23 0.17 60 0.54 0.41 0.31 70 1.02 0.74 0.56 80 2.26 1.48 1.06 90 7.03 3.89 2.51 95 18.16 8.65 5.04 pp 1 TDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.01 0.00 0.00 50 0.01 0.01 0.01 60 0.02 0.02 0.01 70 005 0.03 0.02 80 0.12 0.07 0.05 90 0.46 0.22 0.14 95 1.52 0.54 0.29 ------- 103. TABLE . FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) GEORGIA (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Toxaphene 10 20 30 40 50 60 70 80 90 95 0.10 0.16 0.22 0.28 0.36 0.47 0.63 0.91 1.72 3.10 0.06 0.10 0.15 0.20 0.28 0.38 0.53 0.79 1.37 2.14 0.02 0.04 0.08 0.12 0.18 0.27 0.42 0.68 1.16 1.70 ------- 104. TABLE 16. IDAHO FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) Upper Residue Lower Pesticide Percentfle Limit (ppm) Level (ppm) Lower (ppm) Arsenic 10 0.99 0.76 0.52 20 1.41 1.15 0.86 30 1.82 1.55 1.24 40 2.28 2.00 1.68 50 2.85 2.53 2.21 60 3.62 3.21 2.85 70 4.79 4.14 3.67 80 6.79 5.57 4.81 90 11.22 8.41 6.88 95 17.10 11.81 9.19 pp’DDT 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.24 6.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.06 0.27 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.10 DDTR 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.06 0.25 1.29 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.13 0.39 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.08 0.22 ------- 105. TABLE 16 ILLINOIS FREQUENCY DISTRiBUTION FOR PESTICIDE RESIDUES IN CROPLI4ND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 O .00 0.00 0.00 0.00 0.00 0.01 0.02 0.07 0 .34 1 .33 2.65 3.56 4.40 5.29 6.28 7.46 9.00 11 .20 15.21 19.57 O .00 O .00 0.00 0.01 0.01 0.03 0.06 0.16 0.76 3.27 0.00 0 .00 0.00 0.00 0.00 0.01 0.02 0.06 0.28 1 .00 2.59 3.50 4.34 5.22 6.20 7.37 8.86 11 .00 14.83 18.99 0 .00 0.00 0.00 0.00 0.01 0.02 O .04 0.13 0.58 2.03 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.05 0.24 0.79 2.53 3.44 4.28 5.16 6.13 7.28 8.73 10.80 14.48 18.45 0.00 0.00 0.00 0.00 0.00 0.01 O .02 0.09 0.46 1 .43 iJ er Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Aldrin Arsenic Chi ordane ------- 106. TABLE 1 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL ILLINOIS (CONT) INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.00 O .00 0.00 0.00 0.00 O .00 0.01 O .02 0.05 0 .00 0.00 0.01 0.02 O .03 0.05 0.09 0.18 0.54 1 .36 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.06 0.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 0.00 0.00 0.01 0.01 0.02 0.04 0.08 0.15 o .42 0.95 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.18 0.00 0.00 O .00 0.00 0.00 O .00 0.00 0.00 O .00 0.02 0.00 0.00 0.01 0.01 0.02 0.03 0.07 0.13 0.33 0.71 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.13 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) DDTR Dieldrin Heptachior ------- 107. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) ILLINOIS (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Fleptachior Epoxide 10 20 30 40 50 60 70 80 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 90 95 0.05 0.13 0.04 0.10 0.04 0.08 ------- 108, TABLE 16• INDIANA FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 O .00 0.00 0.00 0.00 0.00 0.02 0.15 3.65 4.60 5.45 6.30 7 .24 8.35 9 .77 11 .77 •I 5.30 19.03 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.10 0.42 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.09 3.44 4.39 5.25 6.10 7.03 8.10 9.42 11 .25 14.38 17.62 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.07 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.06 3.20 4.17 5.03 5.90 6 .82 7.86 9.12 10.80 13.62 16.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.05 0.13 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Aldrin Arseni C Dieldrin ------- 109. TABLE 16• IOWA FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 O .00 0.01 0.02 0.07 0.24 2.65 3.47 4.22 5.00 5.86 6.88 8.18 10.04 13.34 16.88 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.07 0.21 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.06 0.18 2.58 3.40 4.16 4.93 5.78 6.79 8.05 9.84 12.99 16.33 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.05 0.11 0.00 0.00 0.00 0.00 0.00 O .00 O .00 0.01 0.05 0.15 2.50 3.33 4.08 4.86 5.71 6.70 7.93 9.65 12.66 15.83 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.08 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Aidrin Arsenic Atrazi ne ------- 110. TABLE l FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) IOWA (CONT) Pesticide P Upper ercentile Limit Residue Level Liwer Limit . (ppm) (pprn) (ppm) Chiordane 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.01 0.01 0.00 60 0.01 0.01 0.01 70 0.03 0.02 0.02 80 0.07 0.06 0.05 90 0.23 0.20 0.18 95 0.69 0.57 0.49 pp’DDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.00 0.00 0.00 80 0.01 0.00 0.00 90 0.01 0.01 0.01 95 0.03 0.03 0.03 pp’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.00 0.00 000 80 0.01 0.01 0.00 90 0.02 0.02 0.02 95 0.07 0.05 0.05 ------- 111. TABLE 16 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) IOWA (CONT) Upper Residue Lo ier Pesticide Percentile Limit Level Limit (ppm) (ppm) Ippm) DDTR 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.01 0.00 0.00 80 0.01 0.01 0.01 90 0.04 0.04 0.03 95 0.15 0.12 0.09 Die ldrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.01 0.00 0.00 40 0.01 0.01 0.01 50 0.02 0.01 0.01 60 0.03 0.02 0.02 70 0.05 O 04 0.04 80 0.10 0.08 0.07 90 0.27 0.21 0.17 95 0.66 0.45 0.34 Heptachior 10 0.00 0.00 0.00 20 0.00 0.00 O O0 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.00 0.00 0.00 80 0.00 0.00 0.00 90 0.01 0.01 0.00 95 0.03 0.02 0.02 ------- 112. TABLE 1 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (cONT) IOWA (CONT) Pesticide Percentile Upper Limit ( pm) Residue Level (ppm) Lower Limit (ppm) . . Heptachior Epoxide 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 001 0.02 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.04 ------- 113. TABLE 16, KENTUCKY FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.00 O .00 0.00 0.00 0.00 O .01 0.02 0.08 0.41 5.17 6.07 6.83 7.60 8.45 9.50 10.92 12.99 16.69 20.59 0.00 0.00 0.00 0.01 0.01 0.02 0,03 0.06 0.21 0.57 0 .00 0.00 0.00 0 .00 0.00 O .00 0.00 0.01 O .04 0.14 4.48 5.45 6.26 7.06 7 .89 8.83 9.95 11 .44 13.90 16.31 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.05 0.14 0.33 0.00 0.00 0.00 0.00 0 .00 O .00 0.00 0.00 0.03 0.08 3.57 4.60 5.51 6 .40 7.30 8.24 9.26 10.50 12.37 14.11 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.10 0.22 Upper Residue Lower Pesticide Percentile Limit (ppm) Level (ppm) Limit (P P !: !i _ A ldrin Arsenic Die ldrin ------- 114. TABLE . FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) LOUISIANA Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic 10 0.69 0.58 0.46 20 0.95 0.83 0.70 30 1.20 1.08 0.94 40 1.47 1.34 1.21 50 1.80 1.65 1.51 60 2.22 2.03 1.87 70 2.82 2.54 2.32 80 3.78 3.29 2.95 90 5.72 4.71 4.07 95 8.08 6.35 5.29 pp’DDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.01 0.00 0.00 60 0.01 0.01 0.00 70 0.03 0.02 0.01 80 0.10 0.06 0.04 90 0.77 0.30 0.17 95 4.90 1.19 0.52 op’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.01 0.00 0.00 60 0.01 0.01 0.00 70 0.02 0.01 0.00 80 0.05 0.03 0.02 90 0.22 0.11 0.07 95 1.02 0.32 0.18 ------- 115. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) LOUISIANA (cONT) Pesticide P Upper ercentile Limit (ppm) Residue Level (ppm) Lower Limit (ppm) pp’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.01 0.00 0.00 50 0.02 0.01 0.00 60 0.04 0.02 0.01 70 0.09 0.06 0.04 80 0.31 0.20 0.14 90 2.12 1.02 0.61 95 11.31 3.87 1.90 DDTR 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.01 0.01 0.00 50 0.02 0.01 0.01 60 0.06 0.04 0.02 70 0.14 0.10 0.07 80 0.48 0.33 0.24 90 3.15 1.73 1.10 95 15.96 6.69 3.59 Die ldrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.01 0.00 0.00 40 0.01 0.00 0.00 50 0.01 0.01 0.00 60 0.01 0.01 0.01 70 0.02 0.02 0.01 80 0.03 0.03 0.02 90 0.07 0.05 0.0 95 0.17 0.09 0. 7 ------- 116. TABLE 16 MICHIGAN FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 1 .97 2.60 3.23 3.96 4.92 6.32 8.54 12.49 21.73 34.69 0.00 O .00 0.00 0.00 0.00 O .00 0.00 O .00 0.03 0.52 0.00 0.00 O .00 0.00 0.00 0.00 0.00 0.00 0.06 1 .23 1.36 1 .94 2.51 3.12 3.83 4.70 5 .86 7.57 10.80 14.48 0.00 0.00 0.00 O .00 0.00 O .00 0.00 0.00 0.02 0.16 0.00 O .00 0.00 O .00 0.00 0.00 0.00 O .00 0.04 O .45 0.63 1.11 1 .64 2.24 2.93 3.70 4.59 5.75 7.65 9.58 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 O .01 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.23 . . Pesticide Percentile Upper Limit (ppm) : Residue Level (ppm) Lower Limit (ppm) Arsenic pp’ DDE DDTR ------- 117. TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) MICHIGAN (coNT) Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (pp 1) • (ppm) Dieldrin 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.38 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.05 ------- 118. TABLE I6 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) MID-ATLANTIC STATES GROUP 1 Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower — Limit (ppm) Arsenic 10 20 30 40 50 60 70 80 90 95 2.72 3.50 4.21 4.98 5.87 7.02 862 11.09 15.87 21.43 2.28 3.05 3.77 4.51 5.34 6.32 7.56 9.33 12.50 15.92 1.76 2.52 3.25 4.01 4.83 5.74 6.82 8.24 10.61 13.02 1 Includes Delaware, Maryland and New Jersey ------- 119. TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL MISSISSIPPI INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 2.30 2.96 3.55 4.17 4.86 5.69 6.76 8.31 11.09 14.11 0.01 0.03 0.04 0.07 0.11 0.17 0.28 0.51 1.19 2.44 0.01 0.02 0.03 0.04 0.06 0.10 0.16 0.27 0.61 1 .18 2.14 2.80 3.40 4.01 4.68 5.47 6.46 7.84 10.27 1 2.82 0.01 0.02 0.04 O .06 0.09 0.15 0.24 0.42 0.92 1 .77 0.01 0.01 0.02 0.04 0.06 O .09 0.14 0.24 0.50 0.92 1 .97 2.63 3.23 3 .85 4.51 5.27 6.19 7.45 9.60 11.81 0.01 0.02 0.03 0.05 0.08 0.13 0.21 0.36 0.75 1.36 0.01 0.01 0.02 0.03 0.05 0.08 0.13 0.21 0.42 0.75 Uppir Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic pp DDE op ‘DDT ------- 120. TABLE . FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) MISSISSIPPI (CONT) Pesticide Percentile • Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) pp’DDT 10 0.03 0.02 0.01 20 0.06 0.04 0.03 30 0.12 0.09 0.07 40 0.21 0.17 0.13 50 0.36 0.29 0.24 60 0.63 0.52 0.43 70 1.20 0.95 0.77 80 2.62 1.93 1.51 90 7.94 5.19 3.70 95 20.04 11.74 7.71 DDTR 10 0.06 0.04 0.02 20 0.13 0.10 0.07 30 0.24 0.19 0.14 40 0.41 0.33 0.26 50 0.67 0.55 0.45 60 1.13 0.93 0.77 70 2.04 1.63 1.33 80 4.18 3.12 2.45 90 11.62 7.69 5.56 95 27.29 16.20 10.82 pp’TDE 10 0.00 0.00 0.00 20 0.01 0.00 0.00 30 0.01 0.01 0.00 40 0.02 0.01 0.01 50 0.03 0.02 0.01 60 0.06 0.04 0.03 70 0.11 0.08 0.06 80 0.28 0.18 0.13 90 1.06 0.55 0.35 95 3.30 1.34 0.74 ------- 121. TABLE FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) MISSISSIPPI (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Toxaphene 10 20 30 40 50 60 70 80 90 95 0.03 0.06 0.10 0.16 0.24 0.36 0.58 1.12 3.33 8.64 0.01 0.03 0.06 0.10 0.16 0.27 0.45 0.84 1.99 4.04 0.00 0.01 0.02 0.04 0.09 0.17 0.33 0.65 1.43 2.57 ------- 122. TABLE 16 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (cONT) MISSOURI Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Aidrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.01 0.00 0.00 80 0.02 0.01 0.01 90 0.06 0.05 0.05 95 0.23 0.17 0.14 Arsenic 10 2.65 2.31 1.92 20 3.36 3.02 2.63 30 4.00 3.67 3.29 40 4.67 4.33 3.97 50 5.43 5.05 4.69 60 6.38 5.90 5.49 70 7.66 6.96 6.44 80 9.56 8.45 7.68 90 13.11 11.06 9.75 95 17.06 13.81 11.84 Dieldrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.01 0.00 0.00 70 0.02 0.01 0.01 80 0.04 0.03 0.02 90 0.15 0.11 0.08 95 0.58 0.32 0.22 ------- 123. TABLE l6 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (coNT) NEBRASKA Upper Residi i Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic 10 1.64 1.52 1.40 20 2.35 2.22 2.08 30 3.05 2.91 2.77 40 3.82 3.67 3.53 50 4.73 4.56 4.40 60 5.88 5.67 5.47 70 7.47 7.16 6.88 80 9.91 9.39 8.94 90 14.73 13.70 12.83 95 20.47 18.71 17.26 Chiordane 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.01 0.00 0.00 60 0.01 0.01 0.00 70 0.01 0.01 0.00 80 0.02 0.01 0.01 90 0.03 0.03 0.02 95 0.05 0.05 0.04 pp’DDE 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.01 0.00 0.00 80 0.01 0.00 0.00 90 0.02 0.01 0.01 95 0.06 0.03 0.02 ------- 124w TABLE . FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) NEBRASKA (caNT) Upper Resi due Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (pp’i ) DDTR 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.00 0.00 0.00 70 0.01 0.01 0.00 80 0.01 0.01 0.01 90 0.03 0.03 0.03 95 0.09 0.07 0.06 Die1dri 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.01 0.00 0.00 70 0.01 0.01 0.01 80 0.02 0.02 0.01 90 0.06 0.05 0.04 95 0.16 0.11 0.08 ------- 12 , TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) NEW ENGLAND STATES GROUP 1 Pesticide Upper Percentile Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Arsenic 10 1.66 1.35 1.04 20 2.60 2.21 1.82 30 3.62 3.16 2.70 40 4.83 4.29 3.77 50 6.39 5.71 5.09 60 8.57 7.60 6.78 70 11.87 10.31 9.11 80 17.58 1473 12.72 90 30.65 24.17 19,99 95 48.74 36.39 28.90 pp’DDE 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.01 0.01 0.02 0.03 0.06 0.15 0.71 2.79 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.09 0.28 0.72 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.06 0.16 0.34 pp’DDT 10 20 30 40 50 60 70 80 90 95 0.00 0.01 0.01 0.03 0.05 0.09 0.19 0.57 4.18 25.87 0.00 0.00 0.00 0.01 0.02 0.05 0.11 0.29 1.18 3.75 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.16. 0.60 1.49 ------- 126, TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) NEW ENGLAND STATES GROUP (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) DDTR 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.01 0.02 0.04 0.09 0.23 0.90 7.88 52.06 0.00 0.00 0.00 0.01 0.02 0.05 0.13 0.43 2.24 8.73 0.00 0.00 0.00 0.00 0.01 0.02 0.07 0.24 1.04 3.16 pp’TDE 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.01 0.01 0.01 0.02 0.03 0.05 0.14 0.42 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.08 0.15 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.05 0.09 1 Includes Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont ------- 1 27 TABLE 16 NEW YORK FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppjp) (ppm) Arsenic 10 2.19 2.03 1.87 20 3.14 2.97 2.79 30 4.08 3.90 3.71 40 5.11 4.92 4.73 50 6.34 6.12 5.90 60 7.91 7.61 7.34 70 10.05 9.61 9.21 80 13.37 12.63 11.98 90 19.93 18.44 17.19 95 27.75 25.20 23.12 pp’DDE 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.94 19.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.25 1.85 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.11 0.56 op’DDT 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.07 0.72 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.09 ------- 128. TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL iNCLUDING ThE 95% CONFIDENCE INTERVAL (CONT) NEW YORK (CaNT) Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) pp’DDT 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.01 0.00 0.00 60 0.01 0.01 0.00 70 0.04 0.02 0.01 80 0.12 0.09 0.06 90 0.88 0.53 0.36 95 5.40 2.38 1.34 DDTR 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.01 0.01 0.00 70 0.05 0.03 0.02 80 0.20 0.13 0.09 90 2.05 1.11 0.69 95 16.17 6.32 3.20 Dieldrin 10 0.00 0.00 0.00 20 0.00 0.00 0.00 30 0.00 0.00 0.00 40 0.00 0.00 0.00 50 0.00 0.00 0.00 60 0.01 0.00 0.00 70 0.02 0.01 0.00 80 0.03 0.02 0.02 90 0.15 0.09 0.06 95 0.63 0.24 0.14 ------- 129. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CORPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) NEW YORK (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) pp’TDE 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.10 0.44 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.07 0.22 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.05 0.14 ------- 130. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL NORTH CAROLINA INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 43 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.73 1 .23 1 .79 2.49 3.42 4.75 6 .83 10.54 19.40 32.24 0.00 0.01 0.01 0.02 0.03 0.05 0.08 0.14 0.33 0.67 0.00 0.01 0.01 0.01 0.02 0.03 0.04 0.08 0.19 0.43 0.61 1 .06 1 . 59 2.23 3.07 4.23 5.96 8.90 15.50 24.53 0.00 0.01 0.01 0.02 0.03 O .04 0.06 0.11 0.24 0.45 O .00 0.00 O .01 0.01 O .01 0.02 0.04 0.07 0.15 0.28 0.49 O .90 1 .39 1 .99 2.77 3.80 5.28 7.70 1 2.86 19.58 0.00 O .00 0.01 0.01 O .02 O .03 0.06 0.09 0.19 0.33 0.00 0.00 0.00 0. 0 0.01 0.02 0.03 0.06 0.12 0.21 Upper Residue Lower Pesticide Percentile Limit (ppm) Level (ppm) Limit (ppm) Arseni c pp ‘DDE op ‘ DOT ------- 131. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) NORTH CAROLINA (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.01 0.01 0.03 0.05 0.09 0.18 0.45 1 .77 5.66 0.02 0.04 0.07 0.11 0.18 0.31 0.57 1 .28 4.30 12.05 0.00 0.00 0.00 0.01 0.01 0.01 0.02 0 .04 0.18 0.83 0.00 0.00 0.01 0.02 0.03 0.07 0.14 0.32 1 .03 2.68 0.01 0.02 0.04 0.07 0.13 0.23 0.41 0 .82 2.14 4.74 0.00 0.00 O .00 0.00 O .00 0.01 0.01 0.03 O .08 0.20 0.00 0.00 0.00 0.01 0.02 0.05 0.11 0.24 0.69 1 .58 0.00 0.01 0.02 0.04 0.08 0.16 0.30 0.59 1 . 36 2.63 0.00 0.00 0.00 O .00 0.00 0.00 0.00 0.01 0.05 0.11 Upper Residue Lower Pesticide Percentile Limit — (ppm) Level (ppm) Limit (ppm) pp ‘DDT DOT R Dieldrin ------- 132. TABLE lb• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL NORTH CAROLINA (CONT) INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.06 0.11 0.19 0.00 0.01 0.01 0.02 0.03 0.05 0.09 0.23 0.99 3.53 0.03 0.06 0.08 0.11 0.16 0.21 0.30 0.46 1 .06 3.15 0.01 0.01 0.01 0.02 0.02 0.03 0.04 0.05 0.08 0.12 0.00 0.00 0.01 0.01 0.02 0.03 0.06 0.13 0.34 0.79 0.01 0.02 0.03 0.05 0.07 0.11 0.18 0.32 0.70 1 . 34 0.00 0.00 0.00 0.01 0.01 0.02 0.02 0.04 0.07 0.09 0.00 0 .00 0.00 0.00 0.01 0.02 0.04 0.08 0.20 0 .38 0 .00 0.00 0.00 0.00 0.01 0.02 0.05 0.15 0.50 0.92 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) kppm) (ppm) op’TDE pp’TDE Toxaphene ------- 133. TABLE 16• NORTH DAKOTA FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 2.85 3.85 4.77 5.74 6.82 8.12 9.78 12.17 16.48 21.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 2.83 3.82 4.74 5.71 6.79 8.07 9.72 12.07 16.31 20.91 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 .00 0.00 0.00 0.00 0.00 0.01 2.80 3.79 4.71 5.68 6.75 8.03 9.66 11.98 16.15 20.65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 O .00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic pp’DDT D DIR ------- 134. TABLE 16. OHIO FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.05 0.23 2.22 3.41 4.65 6.09 7.85 10.15 13.42 18.67 29.59 43.35 0.00 O .00 0.00 O .00 0.00 O .00 0.00 0.00 0.01 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 O .03 0.12 2.08 3.24 4.46 5.87 7.58 . 79 12.88 17.74 27.67 39.94 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.08 1 .94 3.07 4.27 5.66 1:. 32 9.45 1 2.38 16.91 26.00 37.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Aidrin Arsenic DDTR ------- 1 35 . TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (cONT) OHIO (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Die ldrin 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.10 0.52 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.06 0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.10 ------- 136. TABLE Th. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) OKLAHOMA Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Arsenic 10 20 30 40 50 60 70 80 90 95 0.63 0.96 1.30 1.70 2.19 2.84 3.75 5.23 8.32 12.22 0.58 0.90 1.24 1.63 2.11 2.72 3.57 4.92 7.66 11.04 0.53 0.84 1.18 1.56 2.02 2.61 3.41 4.64 7.10 10.07 ------- 137. TABLE . FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL PENNSLYVANIA INCLUDING THE 95% CONFIDENCE INTERVAL (cONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 2.86 3.88 4.86 5.93 7.22 8.87 11.16 14.69 21 .62 29.83 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.10 0.52 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.13 0.62 2.50 3.50 4.46 5.48 6.65 8.08 9.94 12.67 17.74 23.42 0.00 0.00 0.00 O .00 0.00 O .00 0.00 0.01 0.05 0.17 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.08 0.24 2 .09 3.07 4.03 5.04 6.15 7.44 9.03 11.27 15.23 19.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.05 0.14 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic pp DDE pp’DDT ------- 138.. TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL PENNSYLVANIA (CONT) INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.00 O .01 0.02 0.06 0.53 3.90 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.04 0.41 7.56 0.00 0.00 0.00 0.00 0.00 0.01 0.01 O .02 0.09 0.42 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.24 1.11 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.07 0.20 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.05 0.15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.14 0.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 0.09 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) DDT R Die ldrin pp’TDE ------- 139. TABLE 16 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL SOUTH CAROLINA INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 go 95 0.76 1 .04 1.32 1 .62 1 .98 2.44 3.08 4.09 6.11 8.52 0.01 O .02 0.03 0.05 0.08 0.14 0.28 0.65 2.37 7.05 0.01 0.01 0.02 0.03 0.04 0.06 0.10 0.18 0.46 1 .03 0.65 0.93 1 .20 1 .49 1 . 82 2.23 2.78 3.58 5.09 6.81 0.00 0.01 0.02 0.03 0.06 0.10 0.17 0.33 0.85 1.83 0.00 0.01 0.01 0.02 0.03 0.05 O .08 0.13 0.28 0.52 0.54 0.81 1 .07 1 .36 1 .68 2.06 2.54 3.21 4.41 5.72 0.00 O .00 0.01 0.02 0.03 0.06 0.11 0.21 0.47 0.87 0.00 0.00 0.01 0.01 0.02 0.04 0.06 0.10 0.20 0.33 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arseni c pp DDE op’DDT ------- 140. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICiDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) SOUTH CAROLINA (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 O .04 0.06 0.09 0.13 0.18 0.26 0.41 0.77 2.02 4.64 0.01 0.04 0.08 0.16 0.31 0.70 1 .98 7.97 62.86 362.57 0.01 0.02 0.03 0.04 0.06 0.09 0.15 0.30 0.92 2.34 0.02 0.04 0.06 0.09 0.13 0.20 0.31 0.51 1 .04 1 .85 0.00 0.01 0.03 0.07 0.15 0.33 0.75 1 .95 7.35 21 .97 0.00 0.01 0.02 0.03 0.04 0.06 0.09 0.16 0.33 0.60 0.00 0.01 0.03 0.05 0.08 0.14 0.24 0.39 0.71 1.12 0.00 0.00 0.01 0.02 0.06 0.15 0.37 0.89 2.58 5.93 0.00 0.00 0.01 0.01 0.02 0.04 0.06 0.11 0.19 0.31 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) pp’ DDT DDTR pp ‘TDE ------- 141.. TABLE 16. SOUTH DAKOTA FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 1 .44 2.01 2.57 3.16 3.86 4.72 5.87 7.60 10.88 14.65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 1.37 1 .94 2 . 49 3.08 3.76 4.59 5.69 7.30 10.31 13.72 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 1.30 1 .87 2.42 3.01 3.68 4.48 5.52 7.03 9 . 82 12.92 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 Upper Residue Lower Pesticide Percentile Limit Level Limit (p pmj (ppm) (ppm) Arsenic Dieldrin ------- 142 TABLE lb. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL TENNESSEE INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 3.93 4.82 5.59 6. 35 7.18 8.14 9.35 11 .01 13.84 16.75 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.09 0. 37 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.06 0.34 1 .87 3.73 4.63 5.41 6.18 7.00 7.92 9.04 10.57 13.11 15.66 0.00 0.00 0.00 0.00 0.00 0 00 0.01 0.01 0.04 0.11 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.13 0.39 3.52 4.43 5.22 6.00 6.81 7.71 8.77 10.18 12.49 14.77 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.08 0.19 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic pp DDE pp’DDT ------- 143 TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) TENNESSEE (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppmj Lower Limit (pprn ) DDTR 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.01 0.01 0.02 0.04 0.11 0.62 2.88 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.08 0.30 0.94 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.19 0,48 ------- 144 TABLE 16• FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) VIRGINIA AND WEST VIRGINIA 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 0.95 1.38 1 .81 2.30 2.90 3.66 4.74 6.45 9.93 14.21 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.05 0.28 1 .26 0.00 0.00 0.01 0.01 0.02 0.03 0.06 0.13 0.49 1 .49 O .85 1 .26 1 .69 2.16 2.72 3.43 4.39 5.87 8.76 12.20 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.15 0.46 0.00 0.00 0.00 0.01 0.01 0.02 0.05 0.10 0.32 0.82 0.74 1.15 1 .56 2.02 2.56 3.22 4.10 5.40 7.86 10.71 0.00 0.00 0.00 0.00 O .00 0.00 0.01 0.02 0.10 0.25 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.08 0.24 0.54 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic pp’ DOT DDTR ------- 145. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) VIRGINIA AND WEST VIRGINIA (CONT) Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Heptachior Expoxide 10 20 30 40 50 60 70 80 90 95 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.03 0.08 0.33 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 0.06 ------- 146, TABLE 16• WASHINGTON FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 go 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 1 .09 1.40 1 .68 1 .98 2.30 2.69 3.19 3.90 5.18 6.56 0.00 0.00 0.00 O .00 0.00 0.00 0.00 0.00 0.03 0.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.05 0.25 1 .02 1.33 1.62 1 .90 2.22 2.59 3.05 3.70 4.83 6.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 O .02 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.18 0.95 1.26 1 .54 1.83 2.14 2.50 2.93 3.53 4.54 5.59 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.13 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arseni c pp’DDT DDTR ------- 147. TABLE 16 FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL WESTERN STATES GROUP 1 INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 1 .22 1.76 2.28 2.87 3.57 4.47 5.71 7.66 11 .56 16.27 0.00 0.00 0.00 0.00 0.01 O .02 O .04 0.11 0.66 3.33 O .00 0.00 0.00 0.00 O .00 0.01 0.02 0.05 0.44 3.99 1.11 1 .63 2.15 2.72 3.40 4.24 5.37 7.09 10.42 14.32 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.07 0.32 1.13 0.00 0.00 0.00 0.00 O .00 O .00 0.01 0.03 0.12 0.44 1 .00 1 .49 2.01 2.57 3.23 4.03 5.08 6.63 9.52 12.82 0.00 0.00 0.00 0.00 0.00 O .00 0.01 0.05 0.20 0.57 O .00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.06 0.17 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arsenic pp DDE pp ‘DOT ------- 148 TABLE 1E FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) WESTERN STAThS GROUP (CONT) Pesticide DDTR . Pe rcentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) 10 20 30 40 50 60 70 80 90 95 • 0.00 0.00 0.00 0.01 0.01 0.02 0.06 0.17 0.96 4.45 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.12 0.53 1.84 0.00 0.00 0.00 0.00 0.00 0.01 0.03 0.08 0.34 1.01 1 Includes Arizona, Nevada, New Mexico and Utah ------- 149. TABLE 16. WISCONSIN FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 90 95 10 20 30 40 50 60 70 80 go 95 1 .46 1 .92 2.35 2. 80 3.33 3.97 4.84 6.14 8.60 11.38 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 O .09 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.07 1 . 30 1.76 2.19 2.64 3.14 3.74 4.51 5.61 7.60 9.76 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.04 1.13 1.59 2.02 2.47 2.97 3.54 4.24 5.20 6.87 8.62 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 Upper Residue Lower Pesticide Percentile Limit Level Limit (ppm) (ppm) (ppm) Arseni c DDT R Die ldrin ------- 150. TABLE 16. FREQUENCY DISTRIBUTION FOR PESTICIDE RESIDUES IN CROPLAND SOIL INCLUDING THE 95% CONFIDENCE INTERVAL (CONT) WYOMING Pesticide Percentile Upper Limit (ppm) Residue Level (ppm) Lower Limit (ppm) Arsenic 10 20 30 40 50 60 70 80 90 95 0.27 0.41 0.55 0.72 0.92 1.19 1.58 2.24 3.67 5.55 0.23 0.36 0.50 0.66 0.85 1.10 1.45 2.00 3.14 4.54 0.19 0.31 0.44 0.60 0.78 1.02 1.34 1.82 2.76 3.86 ------- I- i4 TABLE 17. COMPARISON OF MEAN PESTICIDE RESIDUES IN SOIL AMONG VARIOUS CROPPING REGIONS (Parts Per Million) Pesticide Cotton & Gen. Flay & Geri. Irrigated Small Veg. & Name Corn Cotton Gen. Farming Farming Farming Land Grains Veg. Fruit Aldrin 0.05 <0.01 <0.01 0.02 <0.01 <0.01 <0.01 <0.01 0.01 Arsenic 7.44 6.72 4.88 5.35 6.42 4.77 5.70 8.75 3.27 Atrazine 0.02 -- -- -- -- <0.01 -- -- Carbophenothion -- -- ND ND -- ND -- -- -- Chlordane 0.09 <0.01 0.01 0.01 0.03 0.03 <0.01 <0.01 0.14 2,4-D -- - - -- <0.01 - - -- <0.01 ND - - DAC ND ND ND ND ND D.01 ND ND ND op’DDE <0.01 0.01 <0.01 <0.01 <0.01 0.01 ND <0.01 0.01 pp’DDE 0.01 0.16 0.13 0.07 0.05 0.18 <0.01 0.18 0.37 op’DDT 0.01 0.09 0.04 0.05 0.03 0.05 <0.01 0.07 0.06 pp’DDT 0.06 0.54 0.22 0.25 0.20 0.19 <0.01 0.50 0.64 DDTR 0.14 0.87 0.44 0.43 0.30 0.48 <0.01 0.81 1.92 DEF ND ND ND 33.01 ND ND ND ND ND Diazinon -- ND ND -- -- 0.01 -- -- -- Dicofol <0.01 ND ND ND <0.01 0.01 ND ND ND Dieldrin 0.05 0.01 <0.01 0.03 0.02 0.02 <0.01 0.05 0.04 Endosulfan (I) <0.01 ND ND ND <0.01 <0.01 ND ND ND Endosulfan II <0.01 ND ND ND t D.O1 0.01 ND <0.01 ND Endosulfan Sulfate <0.01 ND ND ND t ZO.O1 0.01 ND <0.01 ND Endrin <0.01 0.01 <0.01 <0.01 ND 0.01 <0.01 0.01 0.01 Endrin Aldehyde ND ND ND ND ND ND ND ND <0.01 Endrin Ketone ND <0.01 <0.01 ND ND <0.01 ND <0.01 <0.01 Ethion -- ND ND -- - - <0.01 -- -- -- Ethyl Parathion -- ND ND <0.01 ND <0.01 - - -- -- Heptach]or 0.01 ND <0.01 <0.01 <0.01 <0.01 ND ND <0.01 Heptachior Epoxide 0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 Isodrin <0.01 ND ND <0.01 ND ND ND ND ND Lindane <0.01 ND <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 ND Malathion -- ND ND -- ND -- -- -- Methoxychior ND ND ND ND ND ND ND <0.01 ND PCNB ND ND ND <0.01 ND ND ND ND ND op’TDE <0.01 <0.01 ‘cD.01 0.01 <0.01 0.01 ND 0.01 0.15 pp’TDE 0.05 0.07 0.04 0.04 0.01 0.04 <0.01 0.05 0.70 Toxaphene <0.01 0.42 0.20 0.16 ND 0.14 ND 0.01 0.08 Trifluralin <0.01 0.01 <0.01 <0.01 ND 0.01 <0.01 <0.01 <0.01 ND = NOT DETECTED -- = NO ANALYSES ------- TABLE 18. COMPARISON OF PERCENT OF SITES WITH DETECTABLE PESTICIDE RESIDUES IN SOIL AMONG VARIOUS CROPPING REGIONS Pesticide Name Corn Cotton & Cotton Gen. Farming Gen. Farming Hay & Gen. Farming Irrigated Land Small Veg.T Grains Veg. Fruit Aidrin 23.5 6.4 0.9 6.6 2.1 6.5 0.6 1.1 3.0 Arsenic 100.0 100.0 98.4 99.4 99.3 99.1 99.4 98.9 93 9 Atrazine 14.5 - - -- -- -- 8.3 - - -- Carbophenothion -- - - ND ND -- ND -- -- -- Chlordane 14,5 1.8 2.6 7.2 5.5 11.1 0.9 4.3 21.2 2,4—D - - -- -- 14.3 -- -- 1.7 ND -- DAC ND ND ND ND ND 0.9 ND ND ND op’DDE 0.5 15.6 5.2 10.8 2.8 19.4 ND 5.3 15.1 pp’DDE 9.5 69.7 44.8 46.4 21.4 58.3 5.8 38.3 60.6 op’DDT 3.0 51.4 25.0 27.1 10.3 33.3 3.0 23.4 36.4 pp’DDT 7.7 66.1 43.1 42.2 16.5 53.7 5.8 31.9 57.6 DDTR 10.9 72.5 47.4 49.4 22.8 60.2 6.1 39.4 63.6 DEE ND ND ND 0.6 ND ND ND ND ND Diazinon -— ND ND -- -- 12.5 — - —- —- Dicofol 0.6 ND ND ND 0.7 5.6 ND ND ND Dieldrin 41.8 24.8 14.7 25.3 15.2 39.8 7.0 23.4 21.2 Endosulfan (I) 0.3 ND ND ND 0.7 1.8 ND ND ND Endosulfan II 0.2 ND ND ND 0.7 5.6 ND 1.1 ND Endosulfan Sulfate 0.3 ND ND ND 1.4 5.6 ND 1.1 ND Endrin 0.3 7.3 2.6 3.6 MD 11.1 0.9 3.2 6.1 Endrin Aldehyde ND ND ND ND ND ND ND ND 3.0 Endrin Ketone ND 2.8 0.9 ND ND 2.8 ND 1.1 3.0 Ethion -- ND ND -- -- 6.3 -- - - -- Ethyl Parathion - — ND ND 10.0 ND 12.5 -- -- -— Heptachior 8.6 ND 1.7 1.8 1.4 0.9 ND ND 3.0 Heptachior Epoxide 13.3 0.9 3.4 7.8 4.1 13.0 0.9 4.3 12.1 Isodrjn 1.2 ND ND 1.8 ND ND ND ND ND Lindane 0.3 ND 2.6 1.2 0.7 1.8 0.6 3.2 ND Malathion - — ND iiD -- -- ND —- — - - — Methoxychior ND ND ND ND ND ND ND 1.1 ND PCNB ND ND ND 0.6 i IJ ND ND NI) op’TDE 0.3 0.9 2.6 10.8 2.1 13.0 ND 5,3 6.1 pp’TDE 3.3 47.7 25.9 35.5 11.7 38.0 1.8 27.7 45.4 Toxaphene 0.2 22.9 12 1 10.2 ND 12.0 ND 1.1 6.1 Trifluralin 2.0 12.8 7.8 6.0 ND 9,3 0.3 2.1 3.0 -4 0 z z U I z UI > 0 C ., ND = NOT DETECTED -- NO ANALYSES ------- |