PUBLIC HEALTH ASSESSMENT
DEPUE/NEW JERSEY ZINC/MOBIL CHEMICAL CORPORATION
DEPUE, BUREAU COUNTY, ILLINOIS
| Gob Pile X112-X113 3-92 ZN10 3-93 | Lithopone Ridges X114-X115 3-92 LP20 3-93 | Catalyst Waste DC10 3-93 | Waste/Fill East Creek X116 3-92 SM40 3-93 | Gypstack X107 3-92 GY30 3-93 | |
|---|---|---|---|---|---|
| Aluminum | NA 14,500-23,500 | 11,100-11,200 1,500 | 720 | 6,870 6,400 | 855 1,100 |
| Antimony | <7.8-<8.4 57 | R-R 18 | <0.2 | <5.7 34 | R 3.0 |
| Arsenic | 144-164 93 | 5.1-236 6.2 | 140 | 124 61 | <0.31 <0.75 |
| Barium | 111-140 160 | 291-121,000 14,000 | 27 | 993 36 | 22.9B 24 |
| Beryllium | 1.1-1.0 0.06 | 0.74-1.5 0.16 | 24 | 0.63B 0.039 | <0.15 0.099 |
| Boron | NA 12 | NA 7.0 | 4.8 | NA 15 | NA 35 |
| Cadmium | 365-591 71 | 105-<0.96 8.8 | 3.0 | 81.9 97 | <0.77 0.98 |
| Calcium | 9,580-12,000 17,000 | 1,760-10,100 2,300 | 1,800 | 5,320 12,000 | 125,000 52,000 |
| Chromium | 34.9-38.3 12 | 25.9-46.4 | 69 | 593 11 | 2.6 5.3 |
| Cobalt | 31.6-62.0 18 | 40.9-<0.58 9.6 | 1.7 | 26.9 11 | <0.46 0.47 |
| Copper | 6,200-8,070 1,900 | 262-5,900 50 | 28 | 2,040 740 | 1.5B 2.8 |
| Cyanide | 14.4-30.0 R | 17.6-<1.6 R | R | 1.0 R | <1.2 R |
| Iron (total) | 103,000-126,000 45,000 | 22,800-126,000 14,000 | 19,000 | 56,000 30,000 | 706 1,300 |
| Lead | 3,040-7,030 1,900 | 834-3,656 250 | 230 | 4,400 1,900 | 6.7 3.5 |
| Magnesium | 829-1,940 8,200 | 923-5,840 700 | 570 | 2,530 5,899 | 40B 320 |
| Manganese | 2,820-3,140 870 | 327-1,560 250 | 42 | 1,550 1.3 | 3.6 16 |
| Mercury | <0.17-<0.12 0.4 | <0.48-<0.16 0.01 | 0.1 | 4.39J 2.8 | <0.12 0.03 |
| Molybdenum | NA <0.5 | NA <0.5 | 9.1 | NA 4.9 | NA 0.65 |
| Nickel | 27.9-34.4 12 | 32.1-32.4 30 | 3.3 | 411 15 | <2.0 1.5 |
| Potassium | 320-1,500 920 | 273-3,060 134 | 6,200 | 1,010 1,200 | <100 510 |
| Selenium | 35.0-13.3 <0.6 | 0.66-13.9 <0.6 | <0.6 | 5.8 <0.6 | R <0.6 |
| Silicon | NA <0.5 | NA <0.5 | <0.5 | NA <0.5 | NA 1,000 |
| Silver | 17.2-45.9 12 | 3.6-53.7 <0.05 | <0.05 | 21.3 7.2 | 0.81B <0.05 |
| Sodium | <849-1,130 140 | <252-<614 8 | 38 | 263B 160 | 258B 440 |
| Thallium | <0.56-R 5.2 | R-R 1.1 | 59 | R 3.4 | R 5.5 |
| Vanadium | 47.3-53.5 17 | 54.3-101 | 9,000 | 26.8 17 | 2.4 9.2 |
| Zinc | 105,000-148,000 15,000 | 656-19,300 1,100 | 270 | 22,500 21,000 | <6.9 21 |
B = analyte found in blank
NA = not analyzed
U =not detected
R = data rejected
ppm = parts per million
| TPA1 8-94 | TPA2 8-94 | TPA3 8-94 | 0-6" X109 3-92 | 2-6" X111 3-92 | <1 ft X110 3-92 | <1 ft ISGS1 W plant area | <1 ft ISGS4 S of gob pile | <1 ft ISGS6 S of Marq to E | <1 ft ISGS7 Old dump area | Background Tiskilwa 3-92 X101 & X102 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aluminum | NA | NA | NA | 5,620 | 6,130 | 9,280 | NA | NA | NA | NA | 8,750-11,000 |
| Antimony | NA | NA | NA | R | R | ND | NA | NA | NA | NA | ND-6.6J |
| Arsenic | NA | NA | NA | 14.3 | 113 | 268 | NA | NA | NA | NA | 4.5-6.0 |
| Barium | NA | NA | NA | 56.9 | 4,860 | 3,510 | NA | NA | NA | NA | 104-174 |
| Beryllium | NA | NA | NA | 0.35 | 1.4 | 1.5 | NA | NA | NA | NA | 0.56-0.74 |
| Cadmium | NA | NA | NA | 20.6 | 55.0 | 278 | 84 (1') | 1,400 (3') | 27 (1') | 300 (5') | 0.68-0.71 |
| Calcium | NA | NA | NA | 81,100 | 4,820 | 4,340 | NA | NA | NA | NA | 7,020-13,400 |
| Chromium (total) | NA | NA | NA | 11.4 | 28.4 | 20.9 | NA | NA | NA | NA | 14.2-19.2 |
| Cobalt | NA | NA | NA | 5.6 | 10.4 | 30.4 | NA | NA | NA | NA | 5.2-6.0 |
| Copper | 1,100 | 2,400 | 190 | 94.1 | 717 | 1,960 | 3,200 (1') | 3,500 (1') | 90 (1') | 720 (1') | 13.7-23.6 |
| Cyanide | NA | NA | NA | ND | ND | ND | NA | NA | NA | NA | ND |
| Iron (total) | NA | NA | NA | 14,100 | 199,000 | 64,700 | NA | NA | NA | NA | 10,600-16,100 |
| Lead | NA | NA | NA | 155 | 33,400 | 17,800 | 37,000 (1') | 16,000 (3') | 250 (1') | 3,300 (1') | 117-207 |
| Magnesium | NA | NA | NA | 37,100 | 663 | 1,590 | NA | NA | NA | NA | 3,290-6,440 |
| Manganese | NA | NA | NA | 444 | 1,870 | 2,830 | NA | NA | NA | NA | 382-576 |
| Mercury | NA | NA | NA | ND | ND | 0.77J | NA | NA | NA | NA | ND-ND |
| Nickel | NA | NA | NA | 10.7 | 13.9 | 24.3 | NA | NA | NA | NA | 11.9-15.6 |
| Phosphorus | 800 | 1,100 | 280 | NA | NA | NA | NA | NA | NA | NA | NA |
| Potassium | 140 | <100 | <100 | 1,460 | 704 | 982 | NA | NA | NA | NA | 1,900-2,740 |
| Selenium | NA | NA | NA | ND | 2.1J | 8.2 | NA | NA | NA | NA | 0.17-0.37 |
| Silver | NA | NA | NA | 1.9 | 26.9 | 34.5 | NA | NA | NA | NA | ND-ND |
| Sodium | NA | NA | NA | 161 | ND | ND | NA | NA | NA | NA | ND-140 |
| Vanadium | NA | NA | NA | 14.6 | 30.9 | 34.2 | NA | NA | NA | NA | 20.5-25.5 |
| Zinc | 40,000 | 46,000 | 60,000 | 4,510 | 22,900 | 65,600 | 33,000 (1') | 29,000 (1') | 2,600 (1') | 52,000 (1') | 124-296 |
NA = not analyzed ND = not detected ppm = parts per million
| Metal | Perimeter area 124,126,132-137 | South 125, 127,128,129 | East 118,119, 120,121,122,123 | West 130,131 | Background 101 & 102 | Soil Comparison Values - ATSDR | Source | ||
|---|---|---|---|---|---|---|---|---|---|
| Pica Child | Child | Adult | |||||||
| Aluminum | 6,470-15,300 | 10,100-20,100 | 11,900-17,600 | 9,360-11,600 | 8,750-11,000 | none | none | none | |
| Arsenic | 4.7J-16.9J | 13.7J-21.4J | 9.3-27.2J | 17.6J-32.4J | 4.5-6.0 | 0.6 | 20 | 200 | RMEG |
| Barium | 88.2-5,560 | 223-3,760 | 204-996 | 6,300-8,710 | 104-174 | 100 | 4,000 | 50,000 | RMEG |
| Beryllium | 0.44-0.83 | 0.66-0.77 | 0.58-0.86 | 0.59-0.68 | 0.56-0.74 | 4 | 100 | 1,000 | RMEG |
| Cadmium | 22.2J-98.1J | 4.3J-97.3J | 4.6J-53.1J | 73.6J-90.2J | 0.68-0.71 | 0.4 | 10 | 100 | CEMEG |
| Calcium | 4,710-48,600 | 2,810-15,800 | 2,220-29,300 | 15,100-7,360 | 7,020-13,400 | none | none | none | |
| Chromium | 13.8-25.4 | 17.3-26 | 18.2-38.8 | 16.2-17.3 | 14.2-19.2 | 6 | 200 | 2,000 | RMEG VI |
| Cobalt | 4.9-8.2 | 6-9.2 | 7.3-10.3 | 3-4.6 | 5.2-6.0 | none | none | none | |
| Copper | 26.8J-163J | 15.4J-82.7 | 17.7J-115J | 61.7J-65.5J | 13.7-23.6 | none | none | none | |
| Iron | 10,800-19,900 | 19,300-20,500 | 13,900-23,100 | 14,900-15,800 | 10,600-16,100 | none | none | none | |
| Lead | 85.9-440 | 38.4-729 | 136-512 | 542-565 | 117-207 | none | none | none | |
| Magnesium | 1,980-24,300 | 1,920-5,320 | 2,350-17,600 | 6,040-4,090 | 3,290-6,440 | none | none | none | |
| Manganese | 305-580 | 110-1,040 | 738-1,180 | 532-604 | 382-576 | 300 | 700 | 100,000 | RMEG |
| Nickel | 9.9-18.6 | 16.5-20.3 | 14.7-21.1 | 11.8-12.5 | 11.9-15.6 | 40 | 1,000 | 10,000 | RMEG |
| Potassium | 1,320-3,300 | 870-2,780 | 1,930-3,880 | 1,920-2,270 | 1,900-2,740 | none | none | none | |
| Selenium | 0.17J-1.4J | 0.33J-1.1J | 0.29-1.3 | 1J-1.1 | 0.17-0.37 | 10 | 300 | 4,000 | CEMEG |
| Silver | ND-1.3J | ND-1.4J | ND-1.6J | ND-ND | ND-ND | 10 | 300 | 4,000 | RMEG |
| Vanadium | 18.6-35.8 | 29.3-42.5 | 30.4-41.4 | 23.8-24.3 | 20.5-25.5 | 6 | 200 | 2,000 | RMEG |
| Zinc | 1,.490-6,580 | 329-6,030 | 467-3,070 | 3,780-5,290 | 124-296 | 600 | 20,000 | 200,000 | CEMEG |
J=estimated value NA = not analyzed ND = not detected
VI = Chromium comparison value listed for hexavalent chromium
| Metal (sampling depth) | n | Min | Max | Sum | Mean | Median | Comparison Concentrations | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Soil backgrounds | Soil Comparison Values | |||||||||||
| Local | Illinois ranges | Pica child | Child | Adult | ||||||||
| Urban | Rural | |||||||||||
| Cadmium (0-1") | 65 | <5 | 9,100 | 28,763 | 442 | 100 | 0.68-0.71 | <2.5-8.2 | <0.2-5.2 | 0.4 | 10 | 100 |
| Cadmium (1-2") | 20 | 4 | 98 | 980 | 49 | 50 | ||||||
| Lead (0-1") | 65 | 46 | 7,355 | 43,255 | 666 | 459 | 117-207 | 4.7-647 | <7.4-270 | NA | 1,000 | NA |
| Lead (1-2") | 20 | 36 | 729 | 6,081 | 304 | 312 | ||||||
| Zinc (0-1") | 65 | 3,000 | 99,500 | 728,630 | 11,210 | 8,000 | 124-296 | 23-798 | <5.5-400 | 600 | 20,000 | 200,000 |
| Zinc (1-2") | 20 | 329 | 6,580 | 62,496 | 3,125 | 2,805 | ||||||
ppm = parts per million
NA = not available
Sample depths 0-1" composite of 5 borings collected December 1992 (IDPH).
Sample depths 1-2" collected March 1992 including two background samples from nearby town (Illinois EPA).
Illinois background values from urban and rural locations (Illinois EPA, 1994).
Health comparison soil guidelines for cadmium and zinc (ATSDR, 1998) and Illinois lead soil standard (IDPH, 1994).
| W. Marquette Storm Grate X202 4-93 | E. Marquette Storm Grate X203 4-93 | Lagoon X106 3-92 X201 4-93 | Lagoon-Creek X108 3-92 | South Ditch 1 5-94 2 5-94 3 5-94 | Ditch-Lake X105 3-92 | Lake DePue X104 3-92 | Lake Turner Background X103 3-92 NA 4-93 | |
|---|---|---|---|---|---|---|---|---|
| Aluminum | 8,220 | 16,400 | 12,700 25,000 | 12,100 | NA | 281,005 | 32,100 | 16,900 |
| Ammonia | NA | NA | NA NA | NA | NA | NA | NA | NA |
| Antimony | <7.8 | <32.7 | 7.2J <262 | ND | NA | ND | NA | 6.4J |
| Arsenic | 8.4 | 8.2 | 8.7 28.7 | 19.5 | <5 <5 <5 | 15.3 | 16.7 | 8.6 |
| Barium | 322 | 422 | 70.5 3,780 | 710 | 170 82 97 | 214 | 244 | 112 |
| Beryllium | 0.85 | 1.2 | 0.7 8.5 | 0.85 | NA | ND | 1.4 | 0.87 0.83-0.88 |
| Cadmium | 36.4 | 54.0 | ND 1,450 | 112 | 81 98 110 | 275 | 12.3 | 0.96 3.4-8.0 |
| Calcium | 64,900 | 55,800 | 46,600 28600 | 42,900 | NA | 15,600 | 19,700 | 19,300 |
| Chromium (total) | 164 | 23.6 | 21.0 <35.4 | 24.2 | 4 2 2 | 49.0 | 77.9 | 31.7 34.5-47.7 |
| Cobalt | 29 | 43.4 | 10.1 170 | 50.8 | NA | 51.1 | 14.0 | 8.1 9.7-10.1 |
| Copper | 35,000 | 110,000 | 18.9 217,000 | 3,400 | NA | 4,420 | 73.1 | 19.7 36.1-46.1 |
| Iron (total) | 42,900 | 14,700 | 19,700 76,900 | 32,600 | NA | 37,100 | 31,900 | 19,300 |
| Lead | 698 | 1,160 | 12.3 4,050 | 354 | 160 130 130 | 128 | 109 | 75.6 36.9-55.7 |
| Magnesium | 36,800 | 31,500 | 25,700 12,000 | 9,450 | NA | 9,620 | 12,000 | 9,610 |
| Manganese | 4,480 | 2,400 | 388 8,880 | 2,020 | NA | 1,390 | 677 | 537 524-621 |
| Mercury | 0.13 | <0.4 | ND <3.2 | ND | <0.1 <0.1 <0.1 | <0.93 | ND | ND <0.17-<0.20 |
| Nickel | 61.9 | 66.5 | 24.6 150 | 21.8 | NA | 67.8 | 47.8 | 26.8 34.3-41.2 |
| Potassium | 294 | <967 | 3,070 7,740 | 2,250 | NA | 5,450 | 5,450 | 3,270 |
| Selenium | 1.3 | 2.8 | 0.56J 14.8 | 0.84 | <10 <10 <10 | 2.5J | 1.6J | 0.32 0.48-0.82 |
| Silver | 5.5 | <4.6 | ND <36.9 | 2.5 | NA | 2.2 | ND | ND <1.0-<1.2 |
| Sodium | 420 | 569 | 187 | 889 | NA | 508 | 538 | 245 |
| Vanadium | 18.6 | 2.4 | 26.9 <38.5 | 27.9 | NA | 51.4 | 57.9 | 37.8 23.8-28.6 |
| Zinc | 30,100 | 55,100 | 141 213,000 | 22,500 | NA | 64,800 | 2,170 | 173 163-370 |
J = Estimated value
NA = Not analyzed
ND = Not detected
ppm = parts per million
| Sample Numbers | 001 | 003 | 005 | 007A | 007B | 009A | 009B | 011 | 013A | 013B | 014 | Lake Turner (background) 015, 016,017,018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Arsenic | 28.4 | 26.1 | 8.4 | 22.9 | 19.0 | 18.2 | 20.9 | 15.9 | 14.4 | 12.9 | 8.2 | 6.9-10.3 |
| Beryllium | <2.3 | <2.8 | 1.9 | 1.5 | 1.2 | 1.3 | 1.4 | 1.6 | 1.2 | 1.2 | 0.95 | 0.83-0.88 |
| Cadmium | 273 | 679 | 687 | 845 | 386 | 542 | 602 | 541 | 316 | 367 | 405 | 3.4-8.0 |
| Chromium (total) | 19.5 | <13.9 | <6.2 | 14.2 | 18.0 | 13.8 | 15.8 | 21.3 | 21.8 | 25.7 | 13.3 | 34.5-47.7 |
| Cobalt | 47.6 | 66.2 | 65.1 | 61.1 | 40.7 | 59.4 | 60.2 | 50.0 | 62.3 | 58.2 | 31.3 | 9.7-10.1 |
| Copper | 86,200 | 67,700 | 82,900 | 39,900 | 39,700 | 41,100 | 44,500 | 48,900 | 22,300 | 19,400 | 15,300 | 36.1-46.1 |
| Lead | 1,430 | 1,090 | 580 | 686 | 650 | 528 | 559 | 522 | 405 | 334 | 234 | 36.9-55.7 |
| Manganese | 1,830 | 3,080 | 2,900 | 2,580 | 1,530 | 2,180 | 2,340 | 1,670 | 2,130 | 2,250 | 2,000 | 524-621 |
| Mercury | <1.1 | <1.4 | <0.62 | <0.57 | <0.47 | <0.51 | <0.59 | <0.40 | 0.59 | 0.46 | <0.45 | <0.17-<0.20 |
| Nickel | <56.8 | <69.4 | 32.6 | 51.6 | 47.2 | 45.9 | 46.0 | 52.1 | 60.3 | 57.1 | 25.2 | 34.3-41.2 |
| Selenium | <2.3 | <2.8 | <1.2 | <1.1 | <0.93 | 1.0 | <1.2 | <0.80 | 2.0 | 1.8 | <0.91 | 0.48-0.82 |
| Silver | <6.8 | <8.3 | <3.7 | 10.1 | 5.6 | 8.3 | 5.4 | 3.2 | 1.9 | 144 | <2.7 | <1.0-<1.2 |
| Vanadium | 16.5 | <11.1 | 12.0 | 16.2 | 21.2 | 12.6 | 12.8 | 20.2 | 19.5 | 21.0 | 16.1 | 23.8-28.6 |
| Zinc | 77,800 | 189,000 | 105,000 | 147,000 | 79,900 | 157,000 | 161,000 | 132,000 | 113,000 | 100,000 | 103,000 | 163-370 |
ppm = parts per million
| Gypstack S305 3-92 Clearwater Pond SW20 3-93 (a) Gypsum Pond SW10 3-93 (a) | Ditch S Lithopone S104 4-93 S105 4-93 SW2 5-94 SW3 5-94 | Leachate 6-75 | Lagoon S304 3-92 SW30 3-93(a) | Puddle Marquette IDPH 12-92 S102 4-93 S103 4-93 | Ditch/Lake S303 3-92 S101 4-93 SW1 5-94 | Lake DePue S302 3-92 | Background Lake Turner S301 3-92 | Comparison Value -- Child Drinking Water (in ppm) | Source | |
|---|---|---|---|---|---|---|---|---|---|---|
| Aluminum | 2.63 1.9 1.7 | 5.3 0.035 NA | NA | 2.49 0.69 | NA 10 2.2 | 0.38 4.6 NA | 1.78 | 0.12 | none | |
| Ammonia | 346 NA NA | NA NA 5.9 8.7 | NA | 54.6 NA | NA NA NA | 2.38 NA 7.3 | 0.618 | ND | 3 | I EMEG |
| Antimony | ND 0.07 <0.04 | <0.34 0.05 NA NA | NA | ND <0.04 | NA <3.4 <1.7 | ND NA NA | ND | ND | 0.004 | RMEG |
| Arsenic | 0.368 0.19 0.28 | 0.0021 0.0022 <0.005 0.006 | 0.002 | 0.0194J <0.015 | NA <0.0012 <0.0012 | ND 0.0031 0.007 | 0.0023J | 0.0026J | 0.00002 | CREG |
| Barium | 0.056 0.016 <0.005 | 0.014 0.05 0.03 0.03 | 0.2 | 0.026 0.22 | NA 0.0056 0.012 | 0.054B 0.12 <0.1 | 0.066 | 0.041 | 0.7 | RMEG |
| Beryllium | <0.001 <0.005 <0.005 | 0.0021 0.0014 NA NA | NA | ND <0.005 | NA 0.007 0.0027 | ND 0.0028 NA | ND | <0.001 | 0.000008 | CREG |
| Cadmium | 0.0385J 0.017 0.031 | 11.0 <0.0029 0.009 3.1 | 19.0 | 0.0569J 0.057 | 10 12.1 3.8 | 0.0868 5.6 5.0 | 0.0131J | ND | 0.005 | EMEG |
| Calcium | 299 250 310 | 294 265 190 330 | NA | 105 52 | NA 376 403 | 127 308 350 | 110 | 7.4 | none | |
| Chromium (total) | 0.033 0.02 0.03 | <0.0046 <0.0046 NA NA | ND | ND <0.01 | NA <0.0046 0.0046 | ND <0.0046 NA | ND | ND | 0.050 | RMEG (VI) |
| Cobalt | 0.044 0.06 0.03 | 0.11 <0.0049 NA NA | NA | 0.253 0.12 | NA 10.3 3.9 | 0.0594 3.2 NA | 0.0229 | ND | none | |
| Copper | ND <0.02 <0.02 | 0.26 <0.0027 0.02 0.02 | 42.0 | 0.086 0.23 | NA 278 99.3 | 0.13 84.4 57 | 0.0368 | ND | 1.3 | MCL |
| Iron (total) | 3.34 1.1 0.79 | 0.49 4.6 0.19 1.9 | 14.0 | 1.72 1.6 | NA 0.72 0.13 | 0.706 14.1 16 | 1.33 | 3.45 | none | |
| Lead | ND <0.04 <0.04 | 0.0035 <0.001 <0.003 0.005 | 1.0 | 0.04 0.04 | 1.5 2.0 1.9 | ND 0.45 0.43 | ND | ND | 0.015 | MCL |
| Magnesium | 421 170 330 | 74.7 122 2.2 140 | NA | 47.2 27 | NA 422 200 | 55.9 192 240 | 44.9 | 31.1 | none | |
| Manganese | 4.81 3.7 3.2 | 19.4 0.49 0.16 7.4 | 375.0 | 15.3 7.1 | NA 647 247 | 5.04 201 210 | 2.18 | 0.135 | 0.050 | RMEG |
| Mercury | 0.0003 0.0008 0.0005 | 0.00024 <0.0002 NA NA | ND | 0.00006 0.0007 | NA <0.0002 <0.0002 | 0.00005B NA NA | 0.00002 | 0.00009 | 0.002 | MCL |
| Molybdenum | NA <0.1 <0.1 | NA NA NA NA | NA | NA <0.1 | NA NA NA | NA NA NA | ||||
| Nickel | 0.147 0.11 0.11 | 0.12 <0.15 <0.02 0.05 | 2.8 | 0.222 0.1 | NA 5.4 2.0 | 0.0403 1.7 1.9 | ND | ND | 0.1 | MCL |
| Potassium | 87.3 31 64 | 12.3 5.3 NA NA | NA | 9.83 9.6 | NA 57.7 38.4 | 5.19 24.6 NA | 5.74 | 3.74 | none | |
| Selenium | 0.018J <0.12 <0.12 | 0.01 <0.0014 <0.01 <0.005 | ND | 0.0110J <0.12 | NA 0.034 <0.007 | 0.01J 0.032 <0.025 | 0.01J | ND | 0.020 | CEMEG |
| Silver | ND <0.01 <0.01 | <0.0048 <0.0048 NA NA | 0.03 | ND 0.08J | NA <0.0048 <0.0048 | ND <0.0048 NA | ND | ND | 0.050 | RMEG |
| Sodium | 675 300 550 | 73.7 138 NA NA | NA | 29.8 29 | NA 163 93.5 | 61.7 115 NA | 54.1 | 28.3 | ||
| Sulfate | 3,480 NA NA | NA NA 350 1,300 | NA | 650 NA | NA NA NA | 342 NA 4,900 | 222 | 86 | 400 | P MCL |
| Sulfide | ND <0.5 <0.5 | NA NA <1 <1 | NA | ND <0.5 | NA NA NA | 2.38 NA <1 | 0.618 | ND | none | |
| Vanadium | 0.022 <0.01 <0.01 | <0.005 <0.005 NA NA | NA | 0.007 0.06 | NA <0.005 <0.005 | ND <0.005 NA | 0.009 | ND | 0.020 | LTHA |
| Zinc | 0.52 8.9 1.4 | 571 0.78 0.84 190 | 3,800 | 62.7 40 | 448 5,780 2,190 | 26.5 1,790 1,900 | 5.31 | 0.018 | 3 | RMEG |
NA = not analyzed ppm = parts per million ND = not detected J = estimated value R = rejected data
(a) sample reanalyzed by U.S. EPA contract laboratory.
| PS-1 | PS-2 | PS-3 | PS-4 | PS-5 | PS-6 | PS-7 | PS-8 | PS-9 | PS-10 | PS-11 | PS-12 | PS-13 | PS-14 | PS-15 | PS-16 | PS-17 | 1-96 | Comparison Value Child | Source | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ammonia | <0.05 | <0.05 | 14 | 26 | 14 | 0.93 | 51 | 1.1 | 8.5 | 20 | 0.24 | <0.05 | 31 | 35 | 0.25 | 1 | 9 | NA | 3 | IEMEG |
| Arsenic | <0.005 | <0.005 | 0.05 | <0.005 | 0.006 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | 0.01 | <0.005 | <0.005 | <0.005 | <0.005 | NA | 0.003 | CEMEG |
| Barium | 0.03 | 0.02 | 0.01 | 0.02 | 0.01 | 0.04 | 0.06 | 0.04 | 0.02 | 0.1 | 0.04 | 0.04 | 0.03 | <0.1 | <0.01 | <0.1 | <0.2 | NA | 0.7 | REMEG |
| Calcium | 180 | 190 | 600 | 430 | 440 | 210 | 350 | 210 | 320 | 260 | 180 | 170 | 260 | 460 | 490 | 440 | 470 | NA | NONE | |
| Cadmium | <0.0005 | <0.0005 | 0.62 | 3.7 | 1.1 | <0.0005 | 0.023 | 0.12 | 0.024 | <0.0005 | <0.0005 | <0.005 | <0.005 | 24 | 1.8 | 48 | 12 | 9.44 | 0.002 | CEMEG |
| Chloride | 35 | 18 | 15 | 63 | 54 | 16 | 22 | 11 | 9 | 18 | 11 | <2 | 28 | 36 | 92 | 17 | 33 | NA | NONE | |
| Copper | <0.01 | 0.01 | <0.01 | <0.02 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.1 | <0.2 | <0.2 | 390 | 216 | 1.3 | MCLG |
| Fluoride | 0.3 | 0.2 | 9.5 | 3.5 | 4.6 | 0.7 | 17 | 4.8 | 0.4 | 0.4 | 0.3 | 0.3 | 0.3 | 0.2 | 3.7 | 0.6 | 2.3 | NA | 1.4-2.4 | IPDWR* |
| Iron | 0.04 | <0.02 | <0.02 | 0.46 | 1.1 | 15 | 2.8 | 0.05 | 0.02 | 16 | <0.02 | 0.05 | <0.02 | <0.2 | <0.2 | 8.3 | 1.4 | 2.08 | NONE | |
| Magnesium | 73 | 84 | 84 | 83 | 120 | 82 | 56 | 70 | 32 | 120 | 68 | 89 | 140 | 240 | 120 | 120 | 550 | NA | NONE | |
| Manganese | 0.27 | <0.01 | 18 | 13 | 10 | 0.81 | 6 | 0.99 | 7.8 | 0.59 | 0.23 | 0.01 | 0.32 | 170 | 5.9 | 73 | 790 | 501 | 0.05 | RMEG |
| Nickel | <0.02 | <0.02 | 0.28 | 0.34 | 0.23 | <0.02 | 0.05 | 0.03 | 0.1 | <0.02 | <0.02 | <0.02 | <0.02 | 0.2 | <0.2 | <0.2 | 7.2 | NA | 0.1 | MCL |
| Lead | <0.003 | <0.003 | <0.006 | <0.003 | <0.003 | <0.003 | <0.003 | <0.003 | <0.003 | <0.003 | <0.006 | <0.003 | <0.003 | 0.0613 | <0.003 | 0.43 | 1.3 | 0.9 | 0.015 | MCL |
| Nitrate | 5.9 | 11 | 54 | 4.7 | 21 | <0.1 | 14 | 18 | 33 | <0.1 | <0.1 | <0.1 | 9 | 16 | 7.9 | 1.1 | 19 | NA | 10 | MCL |
| Nitrite | <0.1 | <0.1 | 1.2 | <0.1 | <0.1 | <0.1 | 0.2 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | NA | 1 | REMEG |
| Phosphorus | 1.4 | 0.19 | 3.5 | 0.88 | 1.3 | 0.14 | 2.9 | 0.07 | 0.53 | 2.7 | 0.07 | 0.07 | 21 | 0.26 | 0.34 | <0.05 | 0.18 | NA | NONE | |
| Sulfate | 330 | 400 | 1,900 | 2,300 | 2,800 | 630 | 950 | 490 | 1,100 | 700 | 270 | 220 | 650 | 5,600 | 1,700 | 4,600 | 16,000 | NA | 500 | PMCL |
| Zinc | <0.02 | <0.02 | 100 | 160 | 240 | 0.74 | 32 | 50 | 42 | <0.02 | <0.02 | <0.02 | <0.02 | 1,900 | 230 | 2,400 | 7,500 | 4,860 | 2 | LTHA |
According to Golder (1995) samples for metals, chloride, sulfate, and sulfide were collected from monitoring wells MW-1 through MW-3 were collected on December 12, 1992, piezometers PS-4 through PS-7 and PS-9 on January 29, 1994. Piezometers PS-1, PS-2, PS-3 and PS-10 on March 9, 1994. Samples for fluoride, ammonia, nitrate, nitrite, sulfate, sulfide, and total phosphorus were collected from piezometers PS-1 through PS-10 on May 6, 1994. Samples for all analyses were collected from PS-11 on May 7, 1994 and from PS-12 through PS-17 on May 18, 1994.
No levels of selenium or sulfide was detected in the above groundwater samples and have not been included.
*Interim Public Drinking Water Regulations.
| Species | Normal Ranges | |||||
|---|---|---|---|---|---|---|
| Carp | Buffalo | Catfish | Crappie | Bass | ppm | |
| Arsenic (DL=1) | ND | ND | ND | ND | ND | |
| Cadmium (DL=0.09) | ND | ND | ND | ND | ND | |
| Chromium (total) | 0.11 | 0.10 | 0.07 | 0.07 | 0.09 | 0.11-0.23A |
| Lead (DL=0.05) | ND | ND | ND | ND | ND | |
| Nickel (DL=0.01) | 0.12 | 0.14 | ND | 0.08 | 0.07 | 0.02-0.11B |
| Zinc | 25.86 | 8.95 | 6.11 | 6.96 | 5.94 | 21.7C |
AMean concentration in meat and fish (ATSDR Tox. Profile: Chromium)
BRange of mean levels in meat, fish, and eggs (ATSDR Tox. Profile: Nickel)
CGeometric mean in various whole fish (ATSDR Tox. Profile: Zinc)
DL = detection limit
ND = not detected
ppm = parts per million
| Pounds of Chemicals | ||
|---|---|---|
| Chemical | On-site | Air Release |
| Acetone | 25,708 | |
| Copper and compounds | 1,000-9,999 | 5 |
| Di(2-ethylhexyl)phthalate | 10,000-99,999 | |
| Methanol | 10,141 | |
| Methyl ethyl ketone | 1,000-9,999 | 24,041 |
| Toluene | 6,285 | |
| Trichloroethylene | 1,000-9,999 | 56,294 |
No entries were reported for the following communities:
DePue (61322) Tiskilwa (61368)
Bureau (61315) Seatonville (61359)
| Sample Type | Units | Cadmium | Lead | Zinc | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range | Median | Mean(a) | Mean(b) | Range | Median | Mean(a) | Mean(b) | Range | Median | Mean(a) | Mean(b) | ||
| 27 Carpet Samples | ppm (d) | ND (n=10)- 128 | 18 | 23 | 19 | 27- 2,760 | 139 | 343 | 250 | 35- 4,100 | 150 | 1083 | 967 |
| Total µg | ND (n=10)- 3,875 | 44 | 442 | 310 | 7- 64,159 | 838 | 4,446 | 2149 | 130- 39,830 | 3,247 | 6,598 | 5,320 | |
| µg/Square Foot | ND (n=10)- 1,582 | 3 | 92 | 34 | 0.1- 26,188 | 41 | 1,126 | 162 | 2- 11,951 | 116 | 906 | 481 | |
| 27 Dust Wipes | µg/Square Foot | ND (n=25)- 88 | ND | 16 | 13 | ND(n=15)- 1,428 | ND | 109 | 57 | 34- 2,161 | 318 | 458 | 392 |
ND Not Detectable (Below Detection Limit)
(a) Nondetectable samples calculated as ½ of the Detection Limit
(b) Adjusted mean omitting outlying concentration for comparison only (n=26)
ppm = parts per million
| Ages | Concentration Range | Mean | ND (n) | % ND of age group |
|---|---|---|---|---|
| 0-2 n=1 | <0.5 | - | 1 | 100 |
| 3-5 n=14 | <0.5-<0.5 | <0.5 | 14 | 100 |
| 6-11 n=24 | <0.5-1.2 | 0.33 | 20 | 83 |
| 12-19 n=5 | <0.5-<0.5 | <0.5 | 5 | 100 |
| 20-49 n=26 | <0.5-1.10 | 0.36 | 22 | 84 |
| 50-69 n=18 | <0.5-5.1 | 0.93 | 11 | 61 |
| >70 n=18 | <0.5-3.9 | 1.16 | 7 | 36 |
| Total n=106 | <0.5-5.1 ONE ADULT EXCEEDED STANDARD | 0.57+0.08 | 80 | 75 |
µg/L = micrograms per liter
Note: Results below the detection limit (DL = 0.5 µg/L) were included as 0.25 µg/L for calculations
| Age | # of Volunteers | Cadmium (µg/L) | Creatinine (mg/L) Normal = 1,000-2,000 (a) | Normalized Value (µg/g creatinine) Action Level = 3.0 |
|---|---|---|---|---|
| 0-4 | 0 | |||
| 5-9 | 5 | <0.5-<0.5 | 360-1,370 | <0.36-<1.38 |
| 10-14 | 3 | <0.5-<0.5 | 1,120-2,480 | <0.2-<0.44 |
| 15-18 | 1 | <0.5 | 2,200 | <0.22 |
| 19-24 | 1 | <0.5 | 1240 | <0.4 |
| 25-29 | 0 | NA | NA | NA |
| 30-39 | 2 | <0.5-<0.5 | 1,000-1,050 | <0.47-<0.5 |
| 40-49 | 3 | <0.5-<0.5 | 670-1,190 | <0.42-<0.74 |
| 50-59 | 3 | <0.5-0.9 | 1,070-1,380 | <0.36-0.84 |
| 60-69 | 4 | <0.5-<0.5 | 1,130-3,110 | <0.16-<0.44 |
| 70-79 | 11 | <0.5-4.8 | 170-3,410 | <0.3-3.48 |
| 80+ | 0 | NA | NA | NA |
| Total | 33 | <0.5-4.8 (28 ND) | 170-3,410 (8 LOW; 4 HIGH) | ONE ADULT ABOVE ACTION LEVEL |
ND = Not Detected (detection limit is 0.5 µg/L).
µg/L = micrograms per liter
mg/L = milligrams per liter
µg/g = micrograms per gram
| Age Range | Lead Concentrations (µg/dL) | Mean (a) | Median | Comparison Values | |
|---|---|---|---|---|---|
| Background(b) | Health Guidelines | ||||
| 0-2 n=2 | <0.2-3.8 | 2.4 | 2.4 | 4.1 | <10 |
| 3-5 n=14 | <0.2-9.2 | 3.6 | 3.6 | 3.4 | <10 |
| 6-11 n=25 | <0.2-28.6 | 4.1 | 2.8 | 2.5 | <10 |
| 12-19 n=5 | <0.2-<0.2 | 1.0 | <2.0 | 1.6 | <10 |
| 20-49 n=27 | <0.2-7.3 | 2.3 | <2.0 | 2.6 | <25 |
| 50-69 n=18 | <0.2-8.1 | 3.6 | 2.8 | 4.0 | <25 |
| >70 n=18 | 1.0-12.0 | 4.7 | 3.3 | 4.0 | <25 |
| Total n=109 | <0.2-28.6 | 3.4+0.3 | 2.7 | 2.8 | ONE CHILD EXCEEDED |
µg/dL = micrograms per deciliter
(a) Results less than the detection limit of 2.0 µg/dl were designated 1.0 µg/dl for mean calculations.
(b) Blood lead level concentrations from a national survey (Brody, 1994).
| Contaminant | On-site Gypstack X107 | On-site Soil X109 | Off-site Sediments | Surface Water Lake DePue S302 | Soil Comparison Values (Pica child) | |||
|---|---|---|---|---|---|---|---|---|
| Lagoon X106 | Ditch/Creek X108 | Ditch/Lake X105 | Lake DePue X104 | |||||
| Acetone | ND | ND | ND | ND | 14J | ND | ND | 200,000 RMEG |
| Benzo(a)anthracene | ND | ND | ND | 120J | 110J | ND | ND | none |
| Benzo(a)fluoranthene | ND | ND | 61J | 130J | ND | ND | ND | none |
| Benzo(b)fluoranthene | ND | ND | 170J | 320J | 190J | ND | ND | none |
| Benzo(k)fluoranthene | ND | ND | ND | ND | 97J | ND | ND | none |
| Bis(2-ethylhexyl) phthalate | 120J | ND | 370 | 120J | 750 | 650 | 2J | 50,000 CREG |
| Carbon disulfide | ND | ND | ND | ND | 10J | ND | ND | 200,000 RMEG |
| Chrysene | ND | ND | 100J | 170J | 150J | 130J | ND | none |
| Fluoranthene | ND | 60J | 120J | 160J | 220J | 150J | ND | 80,000 RMEG |
| Phenanthrene | ND | 52J | 50J | 190J | 100J | 67J | ND | none |
| Pyrene | ND | 55J | 190J | 200J | 230J | 230J | ND | 60,000 RMEG |
ppb = parts per billion
ND= Not detected
J=Estimated value
| Pathway name | EXPOSURE PATHWAY ELEMENTS | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Source | Medium | Point of Exposure | Route of Exposure | Receptor Population | Time of Exposure | Exposure Activities | Estimated Number Exposed | Chemicals | |
| Surface Wastes | Gob pile, Ridges, Gypsum stack | Solid wastes, Tailings (fill) | Site wastes, Public and commercial areas | Incidental hand-to-mouth behavior, Ingestion | Workers Trespassers | Past | Contacting wastes, Incidental hand-to-mouth behavior | 4,000 | Site-related metals |
| Surface Soil | Surface wastes, Airborne deposition, Surface water, Fertilizers | Surface soils, Soil amendments | Residential yards, House dust Gardens, Local businesses | Ingestion Food | Residents, Gardeners, Consumers | Past Present Future | Contacting soils and dusts, Amending soils | 4,000 | Site-related metals |
| Site properties | Inhalation Ingestion | On-site workers, Trespassers | Past | Contacting soils | 3,000 | Site-related metals | |||
| Sediments | Contaminated soil, Surface water, Surface runoff, Past air deposition | Sediment receiving settling contaminants | Creeks, Lagoons, Standing water | Ingestion | Fishers, Hunters, Waders | Past Present Future | Recreational activity | 1,000 | Site-related metals |
| Lake DePue | Ingestion | Dredging workers | Past | Dredging activities | 25 | Site-related metals | |||
| Ambient air | Process emissions | Fumes, Particulates | Off-site areas, On-site areas | Inhalation Ingestion | Residents, On-site workers | Past | Breathing fume and particulate | 4,000 | Site-related metals & inorganic chemicals |
| Indoor air | On-site chemical spill | Fumes | Municipal storm sewer, Residential basements | Inhalation | Residents with basements | Past | On-site spill, Breathing fume in home | 1,500 | Site-related sulfur-containing compounds |
| Pathway Name | EXPOSURE PATHWAY ELEMENTS | |||||
|---|---|---|---|---|---|---|
| Source | Environmental Media | Point of Exposure | Route of Exposure | Exposed Populations | Time | |
| Groundwater | Gypsum stack | Leachate Groundwater | Contaminated well water | Ingestion | Residents using private wells | Present Future |
| Surface Water | Surface runoff, Surface wastes, Contaminated soil, Contaminated sediments | Surface runoff and erosion, Permitted discharge | Standing water, Lagoons, South Ditch, Lake DePue, Local creeks, Illinois River | Incidental hand-mouth ingestion, Incidental ingestion while swimming | Trespassers, Waders, Swimmers | Past Present Future |
| Gardens | Contaminated soil, Contaminated sediments, Contaminated water | Garden vegetables | Private properties | Ingestion | Gardeners, Consumers
| Past |
| Remediation of surface wastes and soil | Surface wastes Surface soils Airborne deposition Surface water | Soil, Remedial wastes | Residential yards, Area businesses | Inhalation, Ingestion | Residents, Local employees | Future |
| On-site remediation | Inhalation, Ingestion | On-site remediation workers | Future | |||
| Remediation of sediments | Creek sediments South Ditch Lake sediments | Sediments, Remedial wastes | Areas of re- mediation and recreation | Incidental hand-mouth ingestion | Remediation workers, Recreational individuals | Future |
| Biota | Surface water runoff, Contaminated soils, Contaminated sediments | Biota | Fish Game animals | Ingestion | Fishermen, Hunters | Past Present Future |
| Metals | Soil Ranges1 mg/kg | Health Guidelines for Ingestion (ATSDR, 1999) | Estimated Ingestion (mg/kg/day) | |||
|---|---|---|---|---|---|---|
| Dose(s) mg/kg/day | Source(s) | Child 16 kg; 200 mg/day 4 days/wk 39 wks/yr 5 yrs | Pica Child 16 kg; 5000 mg/day 4 days/wk 39 wks/yr 5 yrs | Group Exceeding Guidance Level | ||
| Arsenic | 4.7J-32.4J | 0.0003 0.0001-0.0008 | Chronic MRL Chronic RfD | 0.00002-0.0002 | 0.0006-0.004 | Pica Child |
| Barium | 88-8,710 | 0.07 | Chronic RfD | 0.0005-0.05 | 0.01-1.2 | Pica Child |
| Beryllium | 0.44-0.86 | 0.002 | Chronic RfD | 0.000002-0.000005 | 0.00006-0.0001 | None |
| Cadmium | 4.3J-98J | 0.0002 | Chronic MRL | 0.00002-0.0005 | 0.0006-0.01 | Children |
| Chromium VI | 13.8-38.8 | 0.003 | Chronic RfD | 0.00007-0.0002 | 0.002-0.005 | Pica Child |
| Cobalt | 3-10.3 | None | None | 0.00002-0.00005 | 0.0004-0.001 | Unknown |
| Copper | 15.4J-163J | None | None | 0.00008-0.0009 | 0.002-0.02 | Unknown |
| Lead | 38.4-729 | None | None | 0.0002-0.004 | 0.005-0.1 | Unknown |
| Magnesium | 1,920-24,300 | None | None | 0.01-0.1 | 0.3-3 | Unknown |
| Manganese | 110-1,180 | 0.14 | Chronic RfD (food) | 0.0006-0.006 | 0.01-0.16 | Pica Child |
| Nickel | 9.9-21.1 | 0.02 | Chronic RfD | 0.00005-0.0001 | 0.001-0.003 | None |
| Selenium | 0.29-1.3 | 0.005 0.005 | Chronic MRL Chronic RfD | 0.000002-0.000007 | 0.00004-0.0002 | None |
| Vanadium | 18.6-42.5 | 0.003 | Chronic MRL | 0.0001-0.0002 | 0.002-0.006 | Pica Child |
| Zinc | 329-6,280 | 0.3 0.3 | Chronic MRL Chronic RfD | 0.002-0.03 | 0.04-0.8 | Pica Child |
1 Illinois EPA off-site soil concentrations from March 1992 sampling event
mg/kg = milligrams per kilogram
mg/kg/day = milligrams per kilogram per day
Figure 1. Illinois Counties and County Seats
Figure 2. DePue Area Bureau County
Figure 4. New Jersey Zinc/Mobil Mining & Minerals site features
Multiple Sclerosis Case Confirmation and Incidence Rates Associated with a Small North
Central Illinois Community
The following attachment was not available in electronic format for conversion to HTML at the time of preparation of this document. To obtain a hard copy of the document, please contact:
Agency for Toxic Substances and Disease Registry
Division of Health Assessment and Consultation
Attn: Chief, Program Evaluation, Records, and Information Services Branch E-56
1600 Clifton Road NE, Atlanta, Georgia 30333
ATTACHMENT
Public Comments and Responses to Comments
A section of the following attachment was not available in electronic format for conversion to HTML at the time of preparation of this document. To obtain a hard copy of the document, please contact:
Agency for Toxic Substances and Disease Registry
Division of Health Assessment and Consultation
Attn: Chief, Program Evaluation, Records, and Information Services Branch E-56
1600 Clifton Road NE, Atlanta, Georgia 30333
The Illinois Department of Public Health (IDPH) responses to the "Summary of Comments" in the comment package received in October 1998 as follows, numbered according to the original statements.
- The statement in the public health assessment (PHA) that "the site is a public health hazard" is the appropriate conclusion category. IDPH selected that category using ATSDR criteria and guidance.
IDPH screened volunteers in DePue in 1993 because the Illinois Environmental ProtectionAgency (IEPA) asked for our department's opinion regarding an immediate clean up. Theresults of the biological screening indicated that this site should not be considered an "urgentpublic health hazard," and IDPH did not recommend an immediate clean up. IDPH did notconduct a "medical evaluation" of the community, nor did we conduct a case-controlled"study." IDPH was able to screen volunteers for two metals (lead and cadmium) quickly andwith very limited funds. Only venous blood samples and random urine samples werecollected and analyzed. Blood samples reflect only recent lead and cadmium exposure. Although cadmium in urine can reflect accumulated body burden, levels respond to recent exposure. Levels rise sharply when the critical level for renal damage is reached.
The PHA is not a quantitative risk assessment as developed by USEPA, nor is the PHAprocess considered "risk assessment modeling." The objective of the PHA is to evaluatecurrent, past, and possible future exposures and to provide information on health implicationsof those exposures.
- IDPH agrees that the efforts made by the DePue Group with IEPA oversight has served toimprove exposure conditions. Additional statements about improved conditions have beenadded to the PHA. When IDPH is informed of successful mitigating activities and is givendata packages, we are able to consider the impact activities have on reducing exposures andcan issue statements reflecting that impact.
- Please refer to answer #1. IDPH again emphasizes that the cadmium screening, as with bloodlead screening, was done to answer the question as to whether immediate action was needed tostop exposure. The screening was not population comprehensive and cannot be used toindicate levels of past exposure or the potential for future exposure.
- Again, IDPH agrees that the selected exposure conditions are conservative. When evaluatingconditions that can impact human health, especially the health and well being of children,IDPH and ATSDR feel that the evaluation must be conservative. IDPH also agrees thatcurrent conditions, clean up efforts, and the considered worker protection activities serve toreduce exposures. Clean up efforts may also reduce off-site metal concentrations, andtherefore, future exposures should be less problematic.
- The phrase "of concern" has been changed to "of interest" for all metals. Exposure frequencyvalues have been revised for children and adults.
The arsenic evaluation was based on screening values developed by ATSDR. The ATSDR airguideline at that time was lower than some of the concentrations found in the ambient airsamples (0.0002 microgram/cubic meter). IDPH agrees that the arsenic screening values arevery low concentrations, sometimes lower than background levels. The discussion of arsenicin air has been removed from the current document because any exposure that occurred at thelevels and duration of time found would not be expected to result in adverse health effects.
The discussion of cadmium has been revised to reflect the current conditions at the site.
No screening values are available for lead concentrations in soil. Limited information is available to determine how much lead in different environmental media contribute to increased blood lead levels. The sentence has been modified to clarify the issue.
- IDPH feels that we have stated that many sources of metals exposure exists in ourenvironment and that some metals are nutrients at community meetings, health professionaleducation activities, and within the PHA drafts during the years that IDPH has been involvedat this site. We feel that we have been careful during educational activities to present theseissues regarding common metal exposures and will continue to do so.
- IDPH is aware of the safety factors included in the development of health comparison values;however, EPA's RfDs and ATSDR's minimal risk levels might not protect hypersensitive(allergic) individuals.
- IDPH appreciates the information provided by the DePue Group regarding the site's past andcurrent operations and have revised statements which were unintentionally confusing ormisleading. The specific comments included in Appendix A have, for the most part, beenconsidered in revising the statement, phrase, or word in question. IDPH thanks all themembers of the DePue Group for their careful and thorough perusal.
- We have included a glossary developed by ATSDR to assist readers. Thank you for this suggestion.
- Dr. Schiffer's report has been more fully discussed within the body of the PHA.
- We appreciate the DePue Group's investigation of the pH data, and those discussions havebeen removed from the PHA. IDPH must depend upon EPA to complete the QA/QCactivities associated with the USEPA risk assessment guidance on data usability and often arenot provided with the laboratories' documentation. That is the rationale behind including the qualifying statement in the PHA.
Appendix A. The specific comments were considered while finalizing the PHA and were helpful in developing a clearer, more concise document. Our response to your specific comments are included as an attachment.
As you know, the DePue site has been very dynamic in recent years. Therefore, we have experiencedsome difficultly keeping current and continuously updating any document that attempts to maintain ageneral summary of activities. This PHA is somewhat preliminary because a comprehensive site-wide remedial investigation has yet to be completed. Because the site was listed on the NationalPriorities List, ATSDR is required to release the PHA within one year of listing or proposed listing,although important sampling efforts are currently underway. IDPH expects additional site reviewsand updates will be necessary as environmental assessments and remediation activities continue, datapackages become available, and reports are finalized. At this time, many earlier concerns listed inearlier drafts of the PHA have been addressed DePue Group actions as well as by IDPH and other agencies.
| Page | Para | Line | Response |
|---|---|---|---|
| 1-2 | First two pages are a summary which has been revised to include the DePue Group's general suggestions, while some of the more specific details suggested here are considered in later sections of the PHA. | ||
| 1 | 1 | 1 | Sentences revised. |
| 1 | 1 | 3 | Sentence revised. |
| 1 | 2 | 6 | Sentence modified and moved to end of summary section. |
| 1 | 3 | 3 | Sentence modified. |
| 1 | 3 | 6 | Summary modified. |
| 2 | 2 | 2 | Sentence modified and moved. |
| 2 | 2 | 6 | Sentence revised |
| 2 | 3 | 2 | Document discussions were expanded to include two conclusions: that no urgent public health hazard was demonstrated by the health outcome data (biological screening), and that the site is considered a public health hazard because exposures have occurred in the past and the opportunity for potential exposures remain for some metals. |
| 3 | 2 | 2 | Sentence revised. |
| 3 | 2 | 4 | Sentence modified. |
| 3 | 2 | 4 | Sentence revised. |
| 3 | 2 | 13 | Sentence added. |
| 3 | 3 | 1 | Sentence modified. |
| 3 | 5 | 9 | Sentence revised. |
| 4 | 1 | 1 | Sentences modified. |
| 4 | 1 | 6 | Sentence modified. |
| 4 | 1 | 10 | Sentence modified. |
| 4 | 1 | 16 | Sentence added. |
| 4 | 2 | 2 | Comments on improved fencing added in description of each area. |
| 4 | 2 | 3 | Sentence revised. |
| 4 | 2 | 5 | Sentence revised. |
| 4 | 3 | 5 | Sentence revised. |
| 4 | 4 | 1 | First sentence deleted. Statement from Gibb moved to paragraph describing main smelting operations area. |
| 5 | 1 | 4 | Sentence modified. |
| 5 | 1 | 7 | Sentence modified. |
| 5 | 2 | 1,4,6,11 | Sentence modified. Part of one sentence deleted. Suggested sentence added. Remainder of paragraph modified. |
| 5 | 3 | Paragraph regarding gypstack area modified. | |
| 6 | 2 | 2 | Sentence modified. |
| 6 | 2 | 3 | Sentence modified. |
| 6 | 3 | 4 | Statement included regarding process of soil erosion and sedimentation. |
| 6 | 3 | 4 | Sentence revised. |
| 7 | 2 | Paragraph removed. | |
| 7 | Bullets incorporated into discussions of the management of each area: smelting operations; inorganic compound manufacturing; gypstack; south ditch; Lake DePue. Operation years provided in comments incorporated into discussions. | ||
| 8 | 2 | 2 | Paragraph incorporated into previous discussion of fertilizer manufacturing. |
| 10 | 2 | 2 | Sentence modified into 2 sentences. |
| 10 | 6 | 4 | IEPA could not find any information on private well sampling. Sentence modified. |
| 11 | 2 | 4 | Sentences modified. |
| 11 | 3 | 5 | Sentence revised. |
| 12 | 3 | 3 | Sentence revised. |
| 12 | 4 | item 3 | Labeling of the comparison values double checked. Table on air data removed since IEPA approved discontinuing sampling because values were not high concentrations. The most conservative comparison value is used; sometimes that value has a cancer endpoint, and sometimes other health endpoints are considered. |
| 14 | 2 | 1 | Sentence revised. |
| 14 | 2 | 2 | Sentence revised. |
| 14 | 2 | 9 | Sentence revised. |
| 14 | 4 | 5 | Sentence revised. |
| 15 | 1 | 2 | Sentence modified. |
| 15 | 2 | 1 | Sentence revised. |
| 15 | 2 | 2 | Sentence modified. |
| 16 | 4 | 1 | Sentence revised. |
| 16 | 5 | 2 | Data associated with pH values deleted. |
| 17 | 1 | 2 | Sentence modified. |
| 17 | 1 | 3 | Sentence added. |
| 17 | 5 | 1 | Sentence revised. |
| 17,18 | 7 | Bullets removed and statements developed into text. | |
| 19 | 1 | 3 | Sentence revised. |
| 19 | 4 | 1 | Section revised. |
| 20 | 2 | 3 | Paragraph deleted. |
| 20 | 2 | 4 | Sentence revised. |
| 20 | 3 | 4 | Sentence revised. |
| 20 | 3 | 1 | Sentence modified. |
| 20 | 5 | 1 | Sentence modified. |
| 21 | 1 | 3 | Paragraph modified. |
| 21 | 1 | 5 | Paragraph modified. |
| 21 | 4 | QA/QC statement qualifies assumptions that data were validated as required by EPA. | |
| 21 | 6 | 1 | Paragraph revised. |
| 22 | 2 | 10 | Sentence revised. |
| 22 | 4 | Paragraph modified. | |
| 23 | 2 | Paragraph modified. | |
| 23 | 1 | 4 | Sentence inserted regarding worker training. |
| 23 | 2 | 7 | Sentence modified. |
| 23 | 2 | 9 | Sentence modified. |
| 23 | 4 | 5 | Sentence modified |
| 23 | 5 | 4 | Sentence modified. |
| 24 | 1 | 1 | Sentence revised. |
| 24 | 2 | 2 | Sentence modified. |
| 24 | 2 | 4 | Sentence revised. |
| 24 | 2 | 11 | Sentence revised. |
| 24 | 3 | 3 | Sentence moved to earlier paragraph and modified. |
| 24 | 4 | 1 | Paragraph on conservation areas modified.. |
| 25 | 1 | 8 | ATSDR's MRLs and EPA's RfDs may not protect hypersensitive (allergic) individuals. Statement modified. |
| 25 | 3 | 2 | Statement added regarding the extrapolation between animal experimentation and the development of protective human comparison values. |
| 25 | 3 | 5 | Sentence modified. |
| 25 | 5 | 7 | The data that were evaluated are included in the tables. Including discussions of each eliminated metal adds considerable length to the document. Statement referring to these data included. |
| 25 | 6 | Paragraph revised so that exposure parameters are consistent with Table 19. Table 19 revised as well. IDPH concurs that frozen soil during cold months of the year should not be included in the exposure calculations. | |
| 26 | 3 | 1 | Paragraph modified. |
| 26 | 3 | 1 | The ATSDR comparison values for arsenic are conservative. Arsenic is a human carcinogen, and the CREG for air, based on the concept of one-in-a-million excess cancer rate, is 0.0002 micrograms per cubic meter. Comparison values are used only to select contaminants for further evaluation. In reviewing the air data, the large majority of quarterly samples were below detection limits, so exposure was minimal. Table on air data removed from PHA. Also, because arsenic concentrations in soil are not expected to exceed comparison values and because a second source may be in the vicinity (coal-fired power plant), arsenic has been eliminated as a contaminant of interest. |
| 26 | 4 | Exposure calculations adjusted for a typical (non-pica) child, keeping body weight consistently 16 kilograms and adjusting exposure frequency to 3/4 of the year (39 weeks). Because these calculated potential doses remain above current MRLs for ingestion of cadmium, cadmium remains a contaminant of interest. | |
| 26-28 | Paragraphs revised. | ||
| 27 | 1 | Statement revised. | |
| 27 | 1 | 1 | More discussion included regarding common lead sources. |
| 27 | 2 | 6 | Statement revised. |
| 27 | 4 | 3 | Paragraph expanded to clarify. |
| 28 | 1 | IDPH does not have resources to speciate soil samples; the DePue Group is welcome to do so and to submit the information to EPA and IDPH. | |
| 29 | 2 | 5 | Additional discussion included regarding common cadmium exposures. |
| 30 | 5 | 1 | ATSDR criteria for selecting the site conclusion category were followed. IDPH will add a second conclusion statement that no immediate concern exists, as demonstrated by the biological screening data. |
| 30 | 5 | 12 | The blood and urine screening was not a comprehensive study of the exposed population. The limited number of people tested, and the tests performed, were designed only to answer the question of whether immediate intervention was needed to stop exposure. The conclusion category is correct. |
| 31 | 3 | 6 | Sentence modified |
| 31 | 4 | 2 | Sentence modified. |
| 61 | Table 16 | Table 16 removed. General discussion of air sampling conducted in 1990s included in text. | |
| 62 | Table 17 | Table revised. | |
| 63,64 | Table 18 | Table revised. | |
| 65,66 | Table 19 | Exposure parameters revised to be consistent with text for child and adult. Pica child exposure values removed. Calculations checked. |
This DePue/New Jersey Zinc/Mobil Chemical Corporation Site public health assessment wasprepared by the Illinois Department of Public Health under a cooperative agreement with the Agencyfor Toxic Substances and Disease Registry. It is in accordance with approved methodology andprocedures existing at the time the public health assessment was begun.
Gail D. Godfrey
Technical Project Officer
SPS, SSAB, DHAC, ATSDR
The Division of Health Assessment and Consultation, ATSDR, has reviewed this public health assessment and concurs with its findings.
Richard Gillig
Chief, SPS, SSAB, DHAC, ATSDR
