|
Montana Cleanup
Standards for Hydrocarbon Contaminated Soil
TIER1 - SURFACE SOIL
(0-2ft) RBSLs (mg/kg) (includes default RBSLs)
This table applies to contaminant surface soil from 0-2 feet below ground
surface. Default RBSLs used to determine if a release ahs occurred at a
site are provided in bold and shaded. Default RBSLs apply to the entire
soils column and always apply in the absence of adequate information.
Distance to water is from the sample depth to the water table.
|
Distance
to Groundwater
|
<10
feet to Groundwater
|
10-20
feet to Groundwater
|
>20
feet to Groundwater
|
|
Chemical
|
E
|
Residential
|
B |
Commercial
|
B |
Residential
|
B |
Commercial
|
B |
Residential
|
B |
Commercial
|
B |
|
For
Gasoline and Light Hydrocarbons measured using Massachusetts Method
for
Volatile Petroleum Hydrocarbons (VPH)
|
| C5-C8
aliphatic |
n |
13
|
dc |
50
|
dc |
13
|
dc |
50
|
dc |
13
|
dc |
50
|
dc |
| C9-C12
aliphatic |
n |
100
|
bu |
500
|
bu |
100
|
bu |
500
|
bu |
100
|
bu |
500
|
bu |
| C9-C10
aromatic |
n |
15
|
l |
15
|
l |
32
|
dc |
50
|
l |
32
|
dc |
70
|
l |
| MTBE |
n |
0.1
|
l |
0.1
|
l |
0.2
|
l |
0.2
|
l |
0.3
|
l |
0.3
|
l |
| Benzene |
c |
0.05
|
l |
0.05
|
l |
0.1
|
l |
0.1
|
l |
0.02
|
l |
0.02
|
l |
| Toluene |
n |
14
|
l |
14
|
l |
41
|
l |
41
|
l |
63
|
l |
63
|
l |
| Ethylbenzene |
n |
13
|
l |
13
|
l |
40
|
l |
40
|
l |
62
|
l |
62
|
l |
| Xylenes |
n |
220
|
l |
220
|
l |
680
|
l |
680
|
l |
1000
|
l |
1000
|
l |
| Naphthalene |
n |
3
|
l |
3
|
l |
9
|
l |
9
|
l |
13
|
l |
13
|
l |
|
For
Diesel and Heavy Hydrocarbons measured using Massachusetts Method for
Extractable Petroleum Hydrocarbons (EPH)
|
| C9-C18
aliphatic |
n |
1000
|
bu |
2500
|
bu |
1000
|
bu |
2500
|
bu |
1000
|
bu |
2500
|
bu |
| C19-C36
aliphatic |
n |
2500
|
bu |
5000
|
bu |
2500
|
bu |
5000
|
bu |
2500
|
bu |
5000
|
bu |
| C11-C22
aromatic |
n |
120
|
dc |
400
|
dc |
120
|
dc |
750
|
dc |
120
|
dc |
750
|
dc |
| Acenaphthene |
n |
160
|
l |
160
|
l |
530
|
l |
530
|
l |
590
|
dc |
810
|
l |
| Anthracene |
n |
2900
|
dc |
3700
|
l |
2900
|
dc |
13000
|
l |
2900
|
dc |
19000
|
l |
| Benz(a)anthracene |
c |
0.8
|
dc |
6
|
dc |
0.8
|
dc |
6
|
dc |
0.8
|
dc |
6
|
dc |
| Benzo(a)pyrene |
c |
0.08
|
dc |
0.6
|
dc |
0.08
|
dc |
0.6
|
dc |
0.08
|
dc |
0.6
|
dc |
| Benzo(b)fluoranthene |
c |
0.8
|
dc |
6
|
dc |
0.8
|
dc |
6
|
dc |
0.8
|
dc |
6
|
dc |
| Benzo(k)fluoranthene |
c |
8
|
dc |
60
|
dc |
8
|
dc |
60
|
dc |
8
|
dc |
60
|
dc |
| Chrysene |
c |
80
|
dc |
| | 