Great Seneca Creek within its watersheds
Context Great Seneca Creek's subwatershed finds 39% sensitive groups against 39% expected; its wider watershed, Seneca Creek, finds 39%.
The same measures for the chapter's subwatershed and each larger unit it sits inside. Open the explorer to compare it with its neighbours at any level.
| Level | Name | Sites | Biological surveys | Sensitive found | Expected | Gap trend | Paved | Chloride median |
|---|---|---|---|---|---|---|---|---|
| Subwatershed (020700080802) | Great Seneca Creek | 127 | 51 | 39% | 39% | no clear trend | 19.4% | 75 mg/L |
| Watershed (0207000808) | Seneca Creek | 157 | 57 | 39% | 38% | no clear trend | 19.3% | 75 mg/L |
| Subbasin (02070008) | Middle Potomac-Catoctin | 1,307 | 1,808 | 29% | 29% | no clear trend | 13.1% | 85 mg/L |
| Basin (020700) | Potomac | 2,855 | 3,275 | 30% | 29% | improving | 13.5% | 95 mg/L |
| Subregion (0207) | Potomac | 2,855 | 3,275 | 30% | 29% | improving | 13.5% | 95 mg/L |
| Region (02) | Mid Atlantic Region | 8,510 | 4,857 | 32% | 32% | improving | 10.3% | 85 mg/L |
Open Explore to zoom from any of these units to its neighbours.