Scientific Investigations Report 2007–5075
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5075
Table 3. Nitrogen and organic carbon concentrations in composite soil and sediment samples collected and analyzed by the U.S. Navy at the former sewage lagoon, Naval Air Station Whidbey Island, Washington, June 2006.
Site and No. |
Sample location |
Concentration, in milligrams per kilogram |
Organic carbon (percent) |
Nitrate as nitrogen |
Ammonia as nitrogen |
Total nitrogen |
---|---|---|---|---|---|---|
Depth interval, 0–6 inches | ||||||
LSC1 | Lagoon | 1 | 2 | <100 | 0.2 | |
LSC2 | Lagoon | 1 | 2 | <100 | 0.3 | |
LSC3 | Lagoon | 1 | 2 | <100 | 0.2 | |
LSC4 | Lagoon | 1 | 3 | 330 | 0.8 | |
LSU1,3,5 | Upgradient | 1 | 2 | 430 | 1 | |
Depth interval, 7–18 inches | ||||||
LSC1 | Lagoon | 14 | 6 | <100 | 0.2 | |
LSC2 | Lagoon | 4 | 9 | <100 | 0.2 | |
LSC3 | Lagoon | 1 | 2 | <100 | 0.2 | |
LSC4 | Lagoon | 1 | 2 | <100 | 0.2 | |
LSU1,3,5 | Upgradient | 1 | 3 | 270 | 0.6 | |
Depth interval, 19–30 inches | ||||||
LSC1 | Lagoon | 9 | 24 | <100 | 0.2 | |
LSC2 | Lagoon | 2 | 7 | <100 | 0.2 | |
LSC3 | Lagoon | 1 | 4 | <100 | 0.2 | |
LSC4 | Lagoon | 1 | 5 | <100 | 0.2 | |
LSU1,3,5 | Upgradient | 3 | 13 | <100 | 0.3 |