Oleophilic surface skimmer that uses grooved drums to increase surface area for oil collection, with oil removed by a scraper or wiper.
Locations of Grooved Drum Skimmer
| Site | Quantity (Each) |
|---|---|
| Abilene, TX | 1 |
| Alburquerque, NM | 1 |
| Hilo, Hawaii, HI | 1 |
| Honolulu, Oahu, HI | 1 |
| Honolulu, Oahu, HI | 1 |
| Kahului, Maui, HI | 1 |
| Lihue, Kauai, HI | 1 |
| McClellan Park, CA | 1 |
| Pomona, CA | 1 |
| Wichita Falls, TX | 1 |
| Total: | 10 |