Table 1.
Selected Properties of Sites Evaluated
| Sitea | Plume Areab (km2) |
Annual Pumpagec (M m3) |
Mass Recovered to Dated (kg) |
Estimated Initial Masse (kg) |
|---|---|---|---|---|
| AFP44 | 4 | 5.0 | 13,000 | 24,000 |
| MOT | 2 | 0.6 | 10,000 | 570,000 |
| PGN | 4 | 2.4 | 20,000 | 29,000 |
| TARP | 4 | 8.7 | 2,100 | 7,000 |
| CD | 0.2 | 1.5 | 16,000 | 20,000 |
a
Site names are presented in the Materials and Methods section
b
Approximate
c
Mean value
d
For pump-and-treat systems only, as of last data available
e
Total mass (in sources and plume) estimated to be present at the start of pump and treat operations. Methods used to obtain estimates are detailed in the text.