Hydrodynamic skimmer that uses an open rotating drum for gravity-based separation and oil collection, with oil removed by a pump.
Locations of Helical Drum Skimmer
| Site | Quantity (Each) |
|---|---|
| El Segundo, CA | 1 |
| Everett, WA | 2 |
| Everett, WA | 1 |
| Miami, FL | 1 |
| Pascagoula, MS | 1 |
| Portland, ME | 1 |
| Richmond, CA | 1 |
| Tampa, FL | 1 |
| Total: | 9 |