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Petitioned Public Health Assessment
Soil Pathway Evaluation,
Isla de Vieques Bombing Range,
Vieques, Puerto Rico
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February 7, 2003
Prepared by:
Federal Facilities Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
TABLES
| Parameter | Number of Residents | Percent of Total Residents |
|---|---|---|
| Total residents | 9,106 | 100% |
| Men | 4,512 | 50% |
| Women | 4,594 | 50% |
| Women of childbearing age (15-44) | 1,701 | 19% |
| Children (age 6 and under) | 1,001 | 11% |
| Elderly (age 65 and over) | 1,263 | 14% |
Source: US Bureau of the Census 2000
Notes:
According to the 2000 census data, 2,366 families lived on Vieques.
The 2000 census data include residents living on Navy lands and in the residential area.
| Chemical | Vieques | Puerto Rico | United States | |||
|---|---|---|---|---|---|---|
| Range (ppm) |
Average† (ppm) |
Range (ppm) |
Average† (ppm) |
Range (ppm) |
Average (ppm) |
|
| Metals | ||||||
| Aluminum | 660-39,000 | 16,000 | NS | NS | 700->100,000 | 72,000 |
| Antimony* | 0.56-3.3 | 1.21 | 1-4.1 | 1.4 | <1-8.8 | 0.66 |
| Arsenic* | 0.96-36 | 8.91 | 1-22 | 2.95 | <0.1-97 | 7.2 |
| Barium | 10-3,000 | 594 | 20-5,000 | 617 | 10-5,000 | 580 |
| Beryllium | 0.075-2 | 0.394 | 1 | 1 | <1-15 | 0.92 |
| Bismuth | 15 | 15 | 1.9 | 1.9 | NS | NS |
| Boron | 10-100 | 11.6 | 10-500 | 12.9 | <20-300 | 33 |
| Cadmium* | 0.37-3.4 | 1.6 | 0.05-0.95 | 0.139 | NS | NS |
| Chromium | 3-700 | 58.2 | 10-5,000 | 681 | 1-2,000 | 54 |
| Cobalt | 0.35-32 | 12.8 | 5-1,500 | 31.4 | <3-70 | 9.1 |
| Copper | 2.1-1,500 | 72.6 | 10-7,000 | 80 | <1-700 | 25 |
| Gold | 0.06-0.46 | 0.223 | 0.002-13 | 0.0846 | NS | NS |
| Iron | 1,000-150,000 | 45,600 | 7,000-200,000 | 55,500 | 100->100,000 | 26,000 |
| Lanthanum | 30-50 | 40 | 50 | 50 | <30-200 | 37 |
| Lead | 0.52-1,000 | 17.1 | 10-1,000 | 20.9 | <10-700 | 19 |
| Manganese* | 30-5,000 | 1,220 | 70-5,000 | 1,040 | <2-7,000 | 550 |
| Mercury | 0.0041-0.12 | 0.0275 | NS | NS | <0.01-4.6 | 0.09 |
| Molybdenum* | 5-7 | 5.2 | 0.1-20 | 2.08 | <3-15 | 0.97 |
| Nickel | 0.75-150 | 18 | 5-5,000 | 97.7 | <5-700 | 19 |
| Niobium | ND | ND | 20 | 20 | <10-100 | 11 |
| Scandium | 5-30 | 16.3 | 5-70 | 22.7 | <5-50 | 8.9 |
| Selenium | 0.52-2.1 | 1.23 | NS | NS | <0.1-4.3 | 0.39 |
| Silver* | 0.5-1.5 | 0.742 | 0.1-30 | 0.903 | NS | NS |
| Strontium* | 100-700 | 254 | 100-5,000 | 238 | <5-3,000 | 240 |
| Thallium | ND | ND | NS | NS | NS | NS |
| Thorium | ND | ND | ND | ND | 2.2-31 | 9.4 |
| Tin | 4.6-30 | 12.6 | 10-300 | 27.1 | <0.1-10 | 1.3 |
| Titanium | 200-15,000 | 3,740 | 500-30,000 | 4,660 | 70-20,000 | 2,900 |
| Tungsten | 50 | 50 | ND | ND | NS | NS |
| Vanadium | 3.6-500 | 162 | 30-1,500 | 250 | <7-500 | 80 |
| Yttrium* | 10-50 | 23 | 10-70 | 21 | <10-200 | 25 |
| Zinc | 2.4-3,000 | 78.5 | 6-700 | 113 | <5-2,900 | 60 |
| Zirconium | 10-300 | 85.3 | 10-1,000 | 83.8 | <20-2,000 | 230 |
| Inorganics | ||||||
| Ammonia | 0.37-3 | 1.49 | NS | NS | NS | NS |
| Ammonium perchlorate | 0.123 | 0.123 | NS | NS | NS | NS |
| Calcium* | 500-200,000 | 26,400 | 500-200,000 | 15,200 | 100-320,000 | 24,000 |
| Cyanide | 0.06-0.1 | 0.075 | NS | NS | NS | NS |
| Magnesium | 1,000-30,000 | 11,700 | 500-100,000 | 12,700 | 50->100,000 | 9,000 |
| Nitrate and nitrite | 0.04-10.6 | 2.63 | NS | NS | NS | NS |
| Potassium | 426-3,700 | 1650 | NS | NS | 50-63,000 | 15,000 |
| Sodium | 113-411 | 220 | 2,000-50,000 | 14,900 | <500-100,000 | 12,000 |
| Organic Compounds | ||||||
| Acetone | 0.04-0.091 | 0.068 | NS | NS | NS | NS |
| Benzene | 0.0007 | 0.0007 | NS | NS | NS | NS |
| 2-Butanone | 0.014-0.032 | 0.025 | NS | NS | NS | NS |
| Carbazole | 0.0011 | 0.0011 | NS | NS | NS | NS |
| Carbon disulfide | 0.0014 | 0.0014 | NS | NS | NS | NS |
| Methylene chloride | 0.0012-0.0023 | 0.0019 | NS | NS | NS | NS |
| Toluene | 0.0006-0.0007 | 0.00067 | NS | NS | NS | NS |
| Xylene | 0.0007-0.0015 | 0.00097 | NS | NS | NS | NS |
| Explosives | ||||||
| Cyclotetramethylene tetranitramine (HMX) | 0.35-0.42a | 0.385a | NS | NS | NS | NS |
| Cyclotrimethylene trinitramine (RDX) | 0.003-2.8b | 0.411b | NS | NS | NS | NS |
| 2-amino-4,6-Dinitrotoluene | 0.62a | 0.62a | NS | NS | NS | NS |
| Nitroglycerin | 1.6-19c | 8.1c | NS | NS | NS | NS |
| 2,4,6-Trinitrotoluene (TNT) | 0.0004-13d | 2.85d | NS | NS | NS | NS |
a - HMX and 2-amino-4,6-Dinitrotoluene were only detected on the LIA.
b - RDX was detected on the LIA, near Bahia de la Chiva, and near Bahia Tapon.
c - Nitroglycerin was detected on the LIA and in the North Coast Conservation Zone.
d - TNT was detected on the LIA and near Bahia de la Chiva.
Sources:
CH2MHILL 2000a
Lai 1978
Learned et al. 1973
PMC 1998
Hoffsommer and Glover 1978
Marsh 1992
Shacklette and Boerngen 1984
† Average concentrations were calculated using detected values only.
* Averages are significantly different between Vieques and Puerto Rico, p <0.05.
ND = not detected
NS = not sampled
| Chemical | Former NASD | Mainland of Puerto Rico | ||
|---|---|---|---|---|
| Range(ppm) | Average (ppm) |
Range (ppm) |
Average† (ppm) |
|
| Metals | ||||
| Aluminum | 2,600-10,000 | 5,867 | NS | NS |
| Antimony | 0.59-0.59 | 0.61 | 1-4.1 | 1.4 |
| Arsenic | ND | ND | 1-22 | 2.95 |
| Barium | 6.9-69 | 28 | 20-5,000 | 617 |
| Beryllium | 0.17-0.24 | 0.16 | 1 | 1 |
| Cadmium | ND | ND | 0.05-0.95 | 0.139 |
| Chromium | 2.3-7.8 | 4.5 | 10-5,000 | 681 |
| Cobalt | 0.96-4.7 | 2.5 | 5-1,500 | 31.4 |
| Copper | 3.3-26 | 14 | 10-7,000 | 80 |
| Iron | 2,300-14,000 | 7,300 | 7,000-200,000 | 55,500 |
| Lead | 0.56-8.0 | 4.4 | 10-1,000 | 20.9 |
| Manganese | 24-350 | 118 | 70-5,000 | 1,040 |
| Mercury | 0.013-0.052 | 0.014 | NS | NS |
| Nickel | 0.5-4.1 | 1.7 | 5-5,000 | 97.7 |
| Selenium | 0.78-1.1 | 1.1 | NS | NS |
| Silver | ND | ND | 0.1-30 | 0.903 |
| Thallium | ND | ND | NS | NS |
| Vanadium | 7.2-40 | 21 | 30-1,500 | 250 |
| Zinc | 4.9-48 | 22 | 6-700 | 113 |
| Inorganics | ||||
| Calcium | 8,900-160,000 | 79,483 | 500-200,000 | 15,200 |
| Magnesium | 2,200-14,000 | 8,317 | 500-100,000 | 12,700 |
| Potassium | 1,300-5,200 | 2,867 | NS | NS |
| Sodium | 7,800-67,000 | 22,217 | 2,000-50,000 | 14,900 |
Sources:
CH2MHILL 2001
Marsh 1992
† Average concentrations were calculated using detected values only.
ND = not detected
NS = not sampled
| Chemical | Live Impact Area | Remainder of Vieques § | ||
|---|---|---|---|---|
| Range (ppm) |
Average† (ppm) |
Range (ppm) |
Average† (ppm) |
|
| Metals | ||||
| Aluminum | 660-31,000 | 16,200 | 2,100-19,000 | 10,500 |
| Antimony | 0.56-3.3 | 1.14 | ND | ND |
| Arsenic | 1-20 | 7.87 | 0.96-6.7 | 3.45 |
| Barium | 10-360 | 105 | 26-3,000 | 656 |
| Beryllium | 0.075-0.48 | 0.241 | 0.12-2 | 0.547 |
| Bismuth | ND | ND | 15 | 15 |
| Boron* | 10-50 | 15.7 | 10-100 | 11.3 |
| Cadmium | 0.37-3.4 | 1.71 | ND | ND |
| Chromium | 7.2-120 | 37.8 | 3-700 | 60.8 |
| Cobalt | 0.35-32 | 14.6 | 1.4-30 | 12.7 |
| Copper | 2.1-120 | 39.1 | 5-1,500 | 76.8 |
| Gold | ND | ND | 0.06-0.46 | 0.22 |
| Iron | 1,000-70,000 | 33,500 | 5,000-150,000 | 46,900 |
| Lanthanum | ND | ND | 30-50 | 40 |
| Lead | 0.52-33 | 8.49 | 1.2-1,000 | 18.1 |
| Manganese | 36-1,500 | 723 | 30-5,000 | 1,280 |
| Mercury | 0.0041-0.086 | 0.0216 | 0.0089-0.069 | 0.0268 |
| Molybdenum | ND | ND | 5-7 | 5.2 |
| Nickel | 0.75-75 | 15.9 | 2.4-150 | 16.2 |
| Scandium | 5-30 | 12.5 | 5-30 | 16.4 |
| Selenium | 0.52-2.1 | 1.23 | ND | ND |
| Silver | ND | ND | 0.5-1.5 | 0.742 |
| Strontium | 100-300 | 156 | 100-700 | 256 |
| Tin | 4.6-5 | 4.87 | 10-30 | 14.3 |
| Titanium | 300-5,000 | 1,650 | 200-15,000 | 3,820 |
| Tungsten | ND | ND | 50 | 50 |
| Vanadium | 3.6-300 | 106 | 7.3-500 | 168 |
| Yttrium | 10-30 | 20.8 | 10-50 | 23 |
| Zinc | 2.4-180 | 47.5 | 5-3,000 | 81.1 |
| Zirconium | 10-150 | 59 | 10-300 | 86.3 |
| Inorganics | ||||
| Ammonia | 0.37-3 | 1.18 | NS | NS |
| Ammonia perchlorate | ND | ND | 0.123 | 0.123 |
| Calcium* | 3,000-200,000 | 114,000 | 500-200,000 | 22,800 |
| Cyanide | 0.06-0.1 | 0.075 | NS | NS |
| Magnesium | 3,000-15,000 | 9,000 | 1,000-30,000 | 11,900 |
| Nitrate and nitrite | 0.04-10.6 | 3.12 | NS | NS |
| Explosives | ||||
| Cyclotetramethylene tetranitramine (HMX) | 0.35-0.42 | 0.385 | ND | ND |
| Cyclotrimethylene trinitramine (RDX) | 0.003-2.8 | 0.527 | 0.003-0.0037a | 0.00335a |
| 2-amino-4,6-Dinitrotoluene | 0.62 | 0.62 | ND | ND |
| Nitroglycerin | 1.6-3.6 | 2.6 | 19b | 19b |
| 2,4,6-Trinitrotoluene (TNT) | 0.0004-13 | 3.42 | 0.006c | 0.006c |
a - RDX was detected near Bahia de la Chiva and Bahia Tapon.
b - Nitroglycerin was detected in the North Coast Conservation Zone.
c - TNT was detected near Bahia de la Chiva.
Sources:
CH2MHILL 2000a
Hoffsommer and Glover 1978
Lai 1978 PMC 1998
Learned et al. 1973
Marsh 1992
§ Does not include detections from the Punta Este Conservation Zone.
† Average concentrations were calculated using detected values only.
* Averages are significantly different between the LIA and the remainder of Vieques, p <0.05.
ND = not detected
NS = not sampled
| Chemical | Live Impact Area | Remainder of Vieques § | ||
|---|---|---|---|---|
| Range (ppm) |
Average† (ppm) |
Range (ppm) |
Average† (ppm) |
|
| Metals | ||||
| Antimony | 0.56-1.3 | 0.83 | ND | ND |
| Arsenic | 3.5-18 | 8.97 | ND | ND |
| Barium | 15-360 | 93.2 | 70-200 | 155 |
| Beryllium | 0.075-0.39 | 0.24 | 1.0-2.0 | 1.5 |
| Boron | 10-30 | 14.5 | 10-30 | 17.2 |
| Cadmium | 0.37-2.6 | 1.65 | ND | ND |
| Chromium | 7.2-100 | 34.2 | 30-150 | 56.7 |
| Cobalt* | 2.9-25 | 14.6 | 5-10 | 6.8 |
| Copper | 5-120 | 40.7 | 5-50 | 20.9 |
| Iron | 5,000-70,000 | 30,700 | 7,000-70,000 | 27,100 |
| Lanthanum | ND | ND | 50 | 50 |
| Lead | 0.97-33 | 9.79 | 10-20 | 13.3 |
| Manganese | 70-1,500 | 673 | 50-1,500 | 639 |
| Nickel | 3.5-34 | 12.9 | 5-50 | 16.4 |
| Scandium | 5-30 | 11.1 | 7-20 | 13.4 |
| Strontium | 100-200 | 138 | 200-200 | 200 |
| Tin | 4.6-5.0 | 4.9 | 10 | 10 |
| Titanium | 300-3,000 | 1,000 | 700-7,000 | 2,200 |
| Vanadium | 20-300 | 106 | 15-200 | 84.4 |
| Yttrium | 10-30 | 17.9 | 10-30 | 22.5 |
| Zinc | 8-81 | 37.9 | 9-46 | 23.3 |
| Zirconium | 10-70 | 41.5 | 10-200 | 80 |
| Inorganics | ||||
| Calcium | 50,000-200,000 | 149,000 | 10,000-200,000 | 157,000 |
| Magnesium | 3,000-15,000 | 8,100 | 7,000-7,000 | 7,000 |
Sources:
CH2MHILL 2000a
Learned et al. 1973
Marsh 1992
PMC 1998
§ Does not include detections from the Punta Este Conservation Zone.
† Average concentrations were calculated using detected values only.
* Averages are significantly different between the Tl geologic units in the LIA compared to Tl geologic units in the remainder of Vieques, p <0.05.
ND = not detected
NS = not sampled
| Chemical | Live Impact Area | Remainder of Vieques § | ||
|---|---|---|---|---|
| Range (ppm) |
Average† (ppm) |
Range (ppm) |
Average† (ppm) |
|
| Metals | ||||
| Aluminum | 660-28,000 | 15,300 | 2,100-19,000 | 11,600 |
| Antimony | 3.3 | 3.3 | ND | ND |
| Arsenic | 1-20 | 5.9 | 2.4-6.7 | 4.4 |
| Barium | 10-300 | 127 | 26-2,000 | 386 |
| Beryllium | 0.09-0.48 | 0.24 | 0.12-0.48 | 0.31 |
| Boron | 10-50 | 18 | 10-100 | 12.4 |
| Cadmium | 0.98-3.4 | 2.0 | ND | ND |
| Chromium | 7.2-120 | 44.3 | 11-700 | 73.6 |
| Cobalt | 0.35-32 | 14.6 | 1.4-30 | 15.7 |
| Copper | 2.1-72 | 36.1 | 5-1,000 | 80.1 |
| Gold | ND | ND | 0.15 | 0.15 |
| Iron | 1,000-70,000 | 38,800 | 5,000-100,000 | 55,600 |
| Lanthanum | ND | ND | 30 | 30 |
| Lead | 0.52-11 | 6.1 | 2.6-1,000 | 27.6 |
| Manganese | 36-1,500 | 816 | 70-5,000 | 1,410 |
| Mercury | 0.004-0.074 | 0.020 | 0.009-0.069 | 0.027 |
| Molybdenum | ND | ND | 5-7 | 5.29 |
| Nickel | 0.75-75 | 21.5 | 2.4-150 | 24 |
| Scandium | 5-20 | 15 | 7-30 | 19.3 |
| Selenium | 0.72-2.1 | 1.4 | ND | ND |
| Silver | ND | ND | 0.5-1.5 | 0.74 |
| Strontium | 300 | 300 | 100-700 | 195 |
| Tin | ND | ND | 10-20 | 15 |
| Titanium | 700-5,000 | 2,940 | 2,000-7,000 | 4,640 |
| Tungsten | ND | ND | 50 | 50 |
| Vanadium | 3.6-300 | 108 | 7.3-500 | 202 |
| Yttrium | 15-30 | 25 | 10-50 | 26.1 |
| Zinc | 2.4-180 | 62 | 11-3,000 | 142 |
| Zirconium | 50-150 | 94 | 20-300 | 95.9 |
| Inorganics | ||||
| Calcium* | 3,000-200,000 | 44,600 | 500-70,000 | 15,500 |
| Magnesium | 7,000-15,000 | 10,800 | 1,500-30,000 | 14,800 |
| Explosives | ||||
| Nitroglycerin | ND | ND | 19 | 19 |
| 2,4,6-Trinitrotoluene (TNT) | 4.1 | 4.1 | ND | ND |
Sources:
CH2MHILL 2000a
Learned et al. 1973
Marsh 1992
PMC 1998
§ Does not include detections from the Punta Este Conservation Zone.
† Average concentrations were calculated using detected values only.
* Averages are significantly different between the Tl geologic units in the LIA compared to Tl geologic units in the remainder of Vieques, p <0.05.
ND = not detected
NS = not sampled
| Chemical | Live Impact Area (Tl geologic unit) |
Former NASD (KTd geologic unit) |
||
|---|---|---|---|---|
| Range (ppm) |
Average (ppm) |
Range (ppm) |
Average (ppm) |
|
| Metals | ||||
| Aluminum | 3,400-31,000 | 16,416 | 6,900-18,000 | 11,346 |
| Antimony | 0.56-2.7 | 1.8 | 0.52-1.4 | 0.68 |
| Arsenic | 3.5-20 | 9.5 | 0.57-1.2 | 0.65 |
| Barium* | 13-360 | 88 | 20-190 | 84 |
| Beryllium | 0.075-0.41 | 0.24 | 0.13-0.27 | 0.17 |
| Cadmium | 0.37-2.6 | 1.6 | ND | ND |
| Chromium | 7.2-53 | 23.6 | 2.2-52 | 13 |
| Cobalt* | 2.9-24 | 15 | 6.7-13 | 9.1 |
| Copper | 11-120 | 51 | 15-47 | 28 |
| Iron* | 5,200-52,000 | 33,263 | 14,000-28,000 | 20,692 |
| Lead | 0.81-33 | 9.2 | 1.1-5.7 | 3.2 |
| Manganese* | 160-1,500 | 778 | 290-1,200 | 626 |
| Mercury | 0.0044-0.086 | 0.02 | 0.0037-0.024 | 0.011 |
| Nickel | 3.5-34 | 14 | 1.3-18 | 5.1 |
| Selenium | 0.52-1.5 | 1.1 | 0.73-0.73 | 0.54 |
| Thallium | ND | ND | 0.45-0.46 | 0.39 |
| Vanadium* | 26-220 | 111 | 29-80 | 53 |
| Zinc | 14-81 | 55 | 23-53 | 36 |
Sources:
CH2MHILL 2000a
CH2MHILL 2001
*Inherently different between the Tl and KTd geologic units.
ND = not detected
| Pathway Name | Exposure Pathway Elements | Comments | |||||
|---|---|---|---|---|---|---|---|
| Potential Source of Contamination | Environmental Media | Point of Exposure | Route of Exposure | Exposed Population | Time of Exposure | ||
| Exposures in the Residential Area | Navy training activities at the LIA | LIA Soil → Air → Residential Soil | Residential Area |
|
Residents and visitors of Vieques | Past, current, and future | The levels of metals and other chemicals detected on Vieques are too low to be of health concern for both adults and children. |
| Exposures in the LIA | Navy training activities at the LIA | LIA Soil | LIA |
|
Trespassers on the LIA | April 1999 to May 2000 | Neither adults nor children were exposed to harmful levels of chemicals present in the soil on the LIA. |
| Chemical | Chemical Concentration Range (ppm) |
Frequency of Detections | Frequency above Comparison Values | Comparison Value (ppm) |
Type of Comparison Value |
|---|---|---|---|---|---|
| Metals | |||||
| Aluminum | 660-39,000 | 43/43 | 0 | 100,000 | I-EMEG-child |
| Antimony | 0.56-3.3 | 10/457 | 0 | 20 | RMEG-child |
| Arsenic | 0.96-36 | 41/463 | 41 4 |
0.5 20 |
CREG C-EMEG-child |
| Barium | 10-3,000 | 463/463 | 0 | 4,000 | RMEG-child |
| Beryllium | 0.075-2 | 44/461 | 0 | 100 | RMEG-child |
| Bismuth | 15 | 1/420 | NA | NA | NA |
| Boron | 10-100 | 420/420 | 0 | 500 | I-EMEG-child |
| Cadmium | 0.37-31.3 | 28/459 | 2 | 10 | C-EMEG-child |
| Chromium | 3-700 | 402/463 | 10 | 200 | RMEG-child (chromium VI) |
| Cobalt | 0.35-32 | 444/463 | 0 | 4,700 | RBC |
| Copper | 2.1-1,500 | 463/463 | 0 | 3,100 | RBC |
| Gold | 0.06-0.46 | 3/420 | NA | NA | NA |
| Iron | 1,000-150,000 | 463/463 | 415 | 23,000 | RBC |
| Lanthanum | 30-50 | 2/420 | NA | NA | NA |
| Lead | 0.52-1,000 | 461/463 | 2 | 400 | SSL |
| Manganese | 30-5,000 | 463/463 | 1 | 3,000 | RMEG-child |
| Mercury | 0.0041-4.21 | 36/39 | NA | NA | NA |
| Molybdenum | 5-7 | 10/420 | 0 | 300 | RMEG-child |
| Nickel | 0.75-150 | 461/463 | 0 | 1,000 | RMEG-child |
| Scandium | 5-30 | 411/420 | NA | NA | NA |
| Selenium | 0.52-2.1 | 19/39 | 0 | 300 | C-EMEG-child |
| Silver | 0.5-1.5 | 14/459 | 0 | 300 | RMEG-child |
| Strontium | 100-700 | 359/420 | 0 | 30,000 | RMEG-child |
| Tin | 4.6-30 | 17/457 | 0 | 47,000 | RBC |
| Titanium | 200-15,000 | 420/420 | 0 | 310,000 | RBC |
| Tungsten | 50 | 2/420 | NA | NA | NA |
| Vanadium | 3.6-500 | 463/463 | 91 | 200 | I-EMEG-child |
| Yttrium | 10-50 | 411/420 | NA | NA | NA |
| Zinc | 2.4-3,000 | 444/445 | 0 | 20,000 | C-EMEG-child |
| Zirconium | 10-300 | 419/420 | NA | NA | NA |
| Inorganics | |||||
| Ammonia | 0.37-50.1 | 9/9 | 0 | 20,000 | I-EMEG-child |
| Ammonium perchlorate | 0.123 | 1/37 | NA | NA | NA |
| Calcium | 500-200,000 | 424/424 | NA | NA | NA |
| Cyanide | 0.06-0.1 | 4/7 | 0 | 1,000 | RMEG-child |
| Magnesium | 1,000-30,000 | 424/424 | NA | NA | NA |
| Nitrate and nitrite | 0.04-50.8 | 9/9 | 0 | 80,000/5,000 | RMEG-child (nitrate/nitrite) |
| Phosphorus | 16-40.4 | 2/2 | NA | NA | NA |
| Potassium | 426-3,700 | 4/4 | NA | NA | NA |
| Sodium | 113-411 | 4/4 | NA | NA | NA |
| Organic Compounds | |||||
| Acetone | 0.04-0.091 | 4/4 | 0 | 5,000 | RMEG-child |
| Benzene | 0.0007 | 1/4 | 0 | 10 | CREG |
| 2-Butanone | 0.014-0.032 | 3/4 | 0 | 30,000 | RMEG-child |
| Carbazole | 0.011 | 1/4 | 0 | 32 | RBC |
| Carbon disulfide | 0.0014 | 1/4 | 0 | 5,000 | RMEG-child |
| Methylene chloride | 0.0012-0.0023 | 4/4 | 0 | 90 | CREG |
| Toluene | 0.0006-0.0007 | 3/4 | 0 | 1,000 | I-EMEG-child |
| Xylene | 0.0007-0.0015 | 3/4 | 0 | 10,000 | I-EMEG-child |
| Explosives | |||||
| Cyclotetramethylene tetranitramine (HMX) | 0.35-0.42 | 2/69 | 0 | 3,000 | I-EMEG-child |
| Cyclotrimethylene trinitramine (RDX) | 0.003-2.8 | 15/81 | 0 | 6 | CREG |
| 2-amino-4,6-Dinitrotoluene | 0.62 | 1/69 | 0 | 0.96 | RBC |
| Nitroglycerin | 1.6-3.6 | 3/69 | 0 | 46 | RBC |
| 2,4,6-Trinitrotoluene (TNT) | 0.0004-13 | 10/81 | 0 | 20 | CREG |
Note: A few tentatively identified compounds were reported from the sampling conducted at the former NASD for the airport expansion (PMC 1998). These chemicals are not included in this table because their identity and quantity are not certain. Carbazole was estimated to be present in a duplicate sample.
Abbreviations:
CREG = Cancer Risk Evaluation Guide
C-EMEG = Chronic Environmental Media Evaluation Guide
I-EMEG = Intermediate Environmental Media Evaluation Guide
RBC = Risk-based Concentration
RMEG = Reference Dose Media Evaluation Guide
SSL = Soil Screening Level
Sources:
CH2MHILL and Baker 1999
CH2MHILL 2000a
Hoffsommer and Glover 1978
Lai 1978
Learned et al. 1973
Marsh 1992
PMC 1998
Garcia et al. 2000
Boldface = chemical was detected above the comparison value
NA = not available
| Chemical | Chemical Concentration Range (ppm) |
Frequency of Detections | Frequency above Comparison Values | Comparison Value (ppm) |
Type of Comparison Value |
|---|---|---|---|---|---|
| Metals | |||||
| Aluminum | 660-15,000 | 5/5 | 0 | 100,000 | I-EMEG-child |
| Arsenic | 1.0-6.7 | 5/5 | 5 0 |
0.5 20 |
CREG C-EMEG-child |
| Barium | 10-1,100 | 6/6 | 0 | 4,000 | RMEG-child |
| Beryllium | 0.087-0.23 | 5/5 | 0 | 100 | RMEG-child |
| Cadmium | 2.3 | 1/5 | 0 | 10 | C-EMEG-child |
| Chromium | 7.2-27 | 5/5 | 0 | 200 | RMEG-child (chromium VI) |
| Cobalt | 0.35-13 | 5/5 | 0 | 4,700 | RBC |
| Copper | 2.1-501 | 6/6 | 0 | 3,100 | RBC |
| Iron | 1,000-67,900 | 7/7 | 3 | 23,000 | RBC |
| Lead | 0.52-31 | 5/5 | 0 | 400 | SSL |
| Manganese | 36-840 | 6/6 | 0 | 3,000 | RMEG-child |
| Mercury | 0.0041-0.017 | 4/5 | NA | NA | NA |
| Nickel | 0.75-13 | 5/5 | 0 | 1,000 | RMEG-child |
| Selenium | 1.3-1.48 | 2/6 | 0 | 300 | C-EMEG-child |
| Vanadium | 3.6-178 | 6/6 | 0 | 200 | I-EMEG-child |
| Zinc | 2.4-52 | 4/4 | 0 | 20,000 | C-EMEG-child |
| Inorganics | |||||
| Nitrate and nitrite | 30.2 | 1/1 | 0 | 80,000/5,000 | RMEG-child (nitrate/nitrite) |
| Phosphorus | 16-40.4 | 2/2 | NA | NA | NA |
| Explosives | |||||
| Cyclotetramethylene tetranitramine (HMX) | 0.42 | 1/5 | 0 | 3,000 | I-EMEG-child |
| Cyclotrimethylene trinitramine (RDX) | 0.29 | 1/5 | 0 | 6 | CREG |
Sources:
CH2MHILL 2000a
Garcia et al. 2000
Boldface = chemical was detected above the comparison value
NA = not available
Figures
Figure 1.
Figure 2.
Figure 3.
Figure 7.
Figure 8.
Figure 9.
