Table 3. Simulated Time in Years for TCE Contamination to Reach Critical Locations.
Concentration |
Model |
A |
B |
C |
D |
E |
1% of Source Concentration |
1D |
2.3** |
5.6 |
8 |
19 |
42 |
2D |
2.6 |
6.5 |
10 |
24 |
52.5 |
|
5% of Source Concentration |
1D |
3.1 |
6.3 |
9.3 |
21.6 |
47 |
2D |
4.7 |
9.8 |
15 |
34.5 |
76 |
|
10% of Source Concentration |
1D |
3.7 |
7.2 |
10.3 |
23.2 |
49.2 |
2D |
7 |
17 |
4* |
4 |
4 |
|
20% of Source Concentration |
1D |
5 |
9 |
12 |
26 |
53 |
2D |
4 |
4 |
4 |
4 |
4 |
A - The boundary of the OSP property (x = 1140 ft).
B - 24th Street in the residential area (x = 1960 ft).
C - Half mile down-gradient (x = 2640 ft).
D - One mile down-gradient ( x = 5280 ft).
E - Willamette River ( x = 10400 ft).
* - 4 implies that TCE may not reach the specified location at this concentration level.
** - in years.