Table A. Petroleum Constituents and Soil Threshold Levelsa At UST corrective action sites where withdrawal points for public and nonpublic water supplies do not exist within distances defined in GUST Rule 391-3-15-.09(3): | ||||
CONSTITUENT | AVERAGE OR HIGHER GROUNDWATER POLLUTION SUSCEPTIBILITY AREAb (Where public water supplies exist with 2.0 miles and/or non-public supplies exist within 0.5 miles) | LOWER GROUNDWATER POLLUTION SUSCEPTIBILITY AREAc (Where public water supplies exist within 1.0 mile and/or non-public supplies exist within 0.25 mile) | ||
VOLATILE ORGANIC COMPOUNDS | =500 feet to withdrawal point | >500 feet to withdrawal point | =500 feet to withdrawal point | >500 feet to withdrawal point |
Benzenee | 0.005 mg/kgd | 0.008 mg/kg | 0.005 mg/kg | 0.71 mg/kg |
Toluene | 0.400 mg/kg | 6.00 mg/kg | 0.400 mg/kg | 500.00 mg/kg |
Ethylbenzene | 0.370 mg/kg | 10.00 mg/kg | 0.500 mg/kg | 140.00 mg/kg |
Xylenes (total) | 20.00 mg/kg | 700.00 mg/kg | 27.00 mg/kg | 700.00 mg/kg |
POLYNUCLEAR AROMATIC HYDROCARBONS | ||||
Acenaphthene | N/Ae | N/Ae | N/Ae | N/Ae |
Anthracene | N/Ae | N/Ae | N/Ae | N/Ae |
Benz(a)anthracene | N/Ae | N/Ae | N/Ae | N/Ae |
Benzo(a)pyrene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Benzo(b)fluoranthene | 0.820 mg/kgd | N/Ae | N/Ae | N/Ae |
Benzo(g,h,i)perylene | N/Ae | N/Ae | N/Ae | N/Ae |
Benzo(k)fluoranthene | 1.60 mg/kgdf | N/Ae | N/Ae | N/Ae |
Chrysene | 0.660 mg/kgdf | N/Ae | N/Ae | N/Ae |
Dibenz(a,h)anthracene | 1.50 mg/kgdf | N/Ae | N/Ae | N/Ae |
Fluoranthene | N/Ae | N/Ae | N/Ae | N/Ae |
Fluorene | N/Ae | N/Ae | N/Ae | N/Ae |
Indeno(1,2,3,-c,d)pyrene | 0.660 mg/kgd | N/Ae | 0.660 mg/kgd | N/Ae |
Naphthalene | N/Ae | N/Ae | N/Ae | N/Ae |
Phenanthrene | N/Ae | N/Ae | N/Ae | N/Ae |
Pyrene | N/Ae | N/Ae | N/Ae | N/Ae |
a - | Based on worst-case assumptions for one-dimensional vadose zone and groundwater contaminant fate and transport models. |
b - | Based on an assumed distance of 0.5 feet between contaminated soils and the water table. |
c - | Based on an assumed distance of 5.0 feet between contaminated soils and the water table. |
d - | Estimated Quantitation Limit. The health-based threshold level is less than the laboratory method limit of detection. |
e - | Not applicable. The health-based threshold level exceeds the expected soil concentration under free product condition. |
f - | In order to protect surface waters, the soil threshold level in Table B may supersede that found in Table A. |
g - | In the presence of other petroleum contaminants in concentrations exceeding 1.0 mg/kg the Estimated Quantitation Limit, and hence the soil threshold level, may be substantially greater, as approved by EPD. |
Table B. Petroleum Constituents and Soil Thresholda Levels At other UST corrective action sites where withdrawal points for public and nonpublic water supplies do not exist within distances defined in GUST Rule 391-3-15-.09(3): | ||||
CONSTITUENT | AVERAGE OR HIGHER GROUNDWATER POLLUTION SUSCEPTIBILITY AREAb | LOWER GROUNDWATER POLLUTION SUSCEPTIBILITY AREAe | ||
VOLATILE ORGANIC COMPOUNDS | =500 feet to surface water body | >500 feet to surface water body | =500 feet to surface water body | >500 feet to surface water body |
Benzenee | 0.017 mg/kg | 0.120 mg/kg | 0.020 mg/kg | 11.30 mg/kg |
Toluene | 115.00 mg/kg | 500.00 mg/kg | 135.00 mg/kg | 500.00 mg/kg |
Ethylbenzene | 18.00 mg/kg | 140.00 mg/kg | 28.00 mg/kg | 140.00 mg/kg |
Xylenes (total) | 700.00 mg/kg | 700.00 mg/kg | 700.00 mg/kg | 700.00 mg/kg |
POLYNUCLEAR AROMATIC HYDROCARBONS | ||||
Acenaphthene | N/Ae | N/Ae | N/Ae | N/Ae |
Anthracene | N/Ae | N/Ae | N/Ae | N/Ae |
Benz(a)anthracene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Benzo(a)pyrene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Benzo(b)fluoranthene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Benzo(g,h,i)perylene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Benzo(k)fluoranthene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Chrysene | 0.660 mg/kgd | N/AN/Ae | N/Ae | N/Ae |
Dibenz(a,h)anthracene | 0.660 mg/kgd | N/Ae | N/Ae | N/Ae |
Fluoranthene | N/Ae | N/Ae | N/Ae | N/Ae |
Fluorene | N/Ae | N/Ae | N/Ae | N/Ae |
Indeno(1,2,3,-c,d)pyrene | 0.660 mg/kg | N/Ae | 0.660 mg/kgd | N/Ae |
Naphthalene | N/Ae | N/Ae | N/Ae | N/Ae |
Phenanthrene | N/Ae | N/Ae | N/Ae | N/Ae |
Pyrene | N/Ae | N/Ae | N/Ae | N/Ae |
a - | Based on worst-case assumptions for one-dimensional vadose zone and groundwater contaminant fate and transport models. |
b - | Based on an assumed distance of 0.5 feet between contaminated soils and the water table. |
c - | Based on an assumed distance of 5.0 feet between contaminated soils and the water table. |
d - | Estimated Quantitation Limit. The health-based threshold level is less than the laboratory method limit of detection. |
e - | Not applicable. The health-based threshold level exceeds the expected soil concentration under free product condition. |
f - | In the presence of other petroleum contaminants in concentrations exceeding 1.0 mg/kg, the Estimated Quantitation Limit, and hence the solid threshold level, may be substantially greater, as approved by EPD. |
Ga. Comp. R. & Regs. R. 391-3-15-.09
O.C.G.A. § 12-13-1, et seq.