| Visualization: | John L. Moreland |
| Sewage Spill Movie | |
| Project: | Ralph Chang, John L. Moreland |
| Organization: | United State Geological Survey |
| Date: | February 2, 1992 |
| Visualization: | John L. Moreland |
| Sewage Spill Movie | |
| Project: | Ralph Chang, John L. Moreland |
| Organization: | United State Geological Survey |
| Date: | February 2, 1992 |