Plan A Target Concentrations

Groundwater (mg/l) / Groundwater Protective Soil (mg/kg) / Health-Based Soil Concentration (mg/kg) / Construction Worker / Irrigation Well (mg/l) / Hypothetical POE (mg/l)
Beneficial Groundwater Use Category
I / II / III / I / II / III / Resident / Com/Ind / Soil (mg/kg) / Ground-water (mg/l) / Resident / Com/Ind / Groundwater
Benzene / 0.005 / 0.0568 / 0.27 / 0.12 / 1.34 / 6.40 / 7.14 / 9.62 / 21.9 / 61.2 / 0.408 / 2.06 / 4.03
Ethylbenzene / 7.00E-01 / 3.65 / 5.21 / 36.8 / 88.8* / 88.8* / 3,270 / 22,400 / 525 / 32.3 / 9.22 / 28.2 / 7.77
Toluene / 1.00E+00 / 2.92 / 4.17 / 39.1 / 114 / 163 / 3,850 / 35,200 / 907 / 51.7 / 10.1 / 43.5 / 6.21
Xylenes / 10.0 / 10.0 / 10.4 / 117* / 117* / 117* / 1,870 / 9,280 / 202 / 46.6 / 17.5 / 51.7 / 15.5
Acenaphthene / 2.19 / 2.19 / 3.13 / 34.1 / 34.1 / 34.1 / 4,690 / 123,000 / 12,800 / 3.04 / 2.06 / 4.21 / 4.66
Acenaphthylene / 2.19 / 2.19 / 3.13 / 54.7* / 54.7* / 54.7* / 4,690 / 123,000 / 12,800 / 3.37 / 2.66 / 5.77 / 4.66
Acetone / 32.9 / 32.9 / 46.9 / 252 / 252 / 360 / 29,600 / 203,000 / 4,770 / 5,380 / 185 / 24,500 / 69.9
Anthracene / 11.0 / 11.0 / 15.6 / 2.04 / 2.04 / 2.04 / 23,500 / 613,000 / 63,900 / 12.6 / 9.14 / 18.3 / 23.3
Benz-a-anthracene / 0.000117 / 0.00117 / 0.00556 / 7.1 / 7.1 / 7.1 / 0.877 / 7.79 / 82.3 / 0.007 / 0.000466 / 0.000542 / 0.0827
Benzo-a-pyrene / 0.0002 / 0.0002 / 0.000556 / 3.09* / 3.09* / 3.09* / 0.0877 / 0.782 / 8.41 / 0.000319 / 0.0002 / 0.0002 / 0.00827
Benzo-b-fluoranthene / 0.000117 / 0.00117 / 0.00556 / 3.61* / 3.61* / 3.61* / 0.877 / 7.80 / 83.1 / 0.00359 / 0.000228 / 0.000259 / 0.0827
Benzo-g,h,i-perylene / 1.1 / 1.1 / 1.56 / 0.824* / 0.824* / 0.824* / 2,350 / 61,300 / 6,390 / 0.028 / 0.056 / 0.0967 / 2.33
Benzo-k-fluoranthene / 0.00117 / 0.0117 / 0.0556 / 1.35* / 1.35* / 1.35* / 8.77 / 78.4 / 850 / 0.0312 / 0.00228 / 0.00259 / 0.827
Chrysene / 0.0117 / 0.117 / 0.556 / 1.24* / 1.24* / 1.24* / 87.7 / 782 / 8,380 / 0.663 / 0.0466 / 0.0542 / 8.27
Dibenz-a,h-anthracene / 0.0002 / 0.0002 / 0.000556 / 1.91* / 1.91* / 1.91* / 0.0877 / 0.784 / 8.50 / 0.0002 / 0.0002 / 0.0002 / 0.00827
Dibenzofuran / 0.146 / 0.146 / 0.209 / 48.8* / 48.8* / 48.8* / 313 / 8,180 / 852 / 0.311 / 0.179 / 0.389 / 0.311
Dichlorobenzene, 1,2- / 0.6 / 3.29 / 4.69 / 88.2 / 221* / 221* / 337 / 1,570 / 33.8 / 5.92 / 7.73 / 22.4 / 6.99
Dichlorobenzene, 1,3- / 1.10 / 1.10 / 1.56 / 48.2 / 48.2 / 48.4* / 29.6 / 134 / 2.87 / 1.66 / 2.56 / 7.30 / 2.33
Dichlorobenzene, 1,4- / 0.075 / 0.075 / 0.169 / 10.4 / 10.4 / 23.3 / 26.0 / 227 / 99.4 / 9.81 / 0.145 / 0.293 / 2.52
Fluoranthene / 1.46 / 1.46 / 2.09 / 25.5* / 25.5* / 25.5* / 3,130 / 81,800 / 8,520 / 0.387 / 0.631 / 1.17 / 3.11
Fluorene / 1.46 / 1.46 / 2.09 / 30.2* / 30.2* / 30.2* / 3,130 / 81,800 / 8,520 / 2.12 / 1.73 / 3.73 / 3.11
Formaldehyde / 7.30 / 7.30 / 10.4 / 58.3 / 58.3 / 83.3 / 355 / 1,620 / 34.7 / 67.0 / 34.3 / 208 / 15.5
Indeno-1,2,3-cd-pyrene / 0.000117 / 0.00117 / 0.00556 / 26.0* / 26.0* / 26.0* / 0.877 / 7.84 / 85 / 0.00149 / 0.00011 / 0.000124 / 0.0827
Methyl Ethyl Ketone / 21.9 / 21.9 / 31.3 / 174 / 174 / 249 / 19,200 / 129,000 / 3,020 / 1,670 / 122 / 8,610 / 46.6
MTBE(footnote) / 0.24 / 0.365 / 0.521 / 2.56 / 3.90 / 5.57 / 87.3 / 128 / 294 / 83.5 / 1.85 / 28.1 / 0.777
Naphthalene / 0.73 / 0.73 / 1.04 / 99.7* / 99.7* / 99.7* / 112 / 531 / 11.5 / 0.668 / 1.77 / 5.24 / 1.55
Phenanthrene / 1.10 / 1.10 / 1.56 / 28.2* / 28.2* / 28.2* / 2,350 / 61,300 / 6,390 / 1.33 / 0.914 / 1.83 / 2.33
Pyrene / 1.10 / 1.10 / 1.56 / 10.3* / 10.3* / 10.3* / 2,350 / 61,300 / 6,390 / 0.294 / 0.473 / 0.875 / 2.33

Normal: Carcinogenic COC Italic: Non-carcinogenic COC Underlined: Not defined Bold: Maximum Contaminant Level (MCL)

*: The saturated soil concentration is substituted for the calculated value.

MTBE: Groundwater ingestion and irrigation well pathways are non-carcinogenic, but health-based soil and construction worker pathways are carcinogenic.

Dichlorobenzene, 1,4-: Groundwater ingestion and irrigation well pathways are carcinogenic, but health-based soil and construction worker pathways are a combination of carcinogenic and non-carcinogenic effects.

Revised 9/1/2011