Scientific Investigations Report 2006-5056
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006-5056
Table 4. Estimated chloroethene mass degradation rates and fluxes to surface water at Operable Unit 1, Naval Undersea Warfare Center, Division Keyport, Washington, 1999–2000 and 2004.
[All values are in grams per day. Abbreviations: TCE, trichloroethene; cis-DCE, cis-1,2-dichloroethene; VC, vinyl chloride; g/d, gram per day; <, actual value is less than value shown]
| Sub-transect name | Measured chloroethene flux at landfill sub-transects | Chloroethene mass degradation between landfill and marsh sub-transects | Chloroethene flux to surface water | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TCE | cis-DCE | VC | Total | TCE | cis-DCE | VC | Total | TCE | cis-DCE | VC | Total | |||
| 1999-2000 | ||||||||||||||
| North1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | ||
| North-central2 | .4 | 11 | 2.4 | 14 | .3 | 10 | 9.2 | 20 | <.1 | .6 | .3 | .9 | ||
| Central3 | <.1 | .20 | .52 | .7 | <.1 | .2 | .6 | .8 | <.1 | <.1 | <.1 | <.1 | ||
| South-central4 | .1 | <.1 | <.1 | .1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | ||
| South5 | 38 | 37 | 4.2 | 79 | 38 | 61 | 45 | 144 | <.1 | 4.2 | 1.3 | 5.5 | ||
| Total | 38 | 48 | 7.1 | 94 | 38 | 72 | 55 | 165 | <.1 | 4.9 | 1.6 | 6.5 | ||
| 2004 | ||||||||||||||
| North1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | <0.1 | ||
| North-central2 | <.1 | 5.5 | 1.6 | 7.1 | <.1 | 5.3 | 5.0 | 10 | <.1 | .2 | <.1 | <.1 | ||
| Central3 | <.1 | .1 | .3 | .4 | <.1 | .1 | .4 | .5 | <.1 | <.1 | <.1 | <.1 | ||
| South-central4 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | <.1 | ||
| South5 | 32 | 30 | 2.6 | 65 | 32 | 49 | 34 | 115 | <.1 | 5.3 | 3.8 | 9.1 | ||
| Total | 32 | 36 | 4.5 | 72 | 32 | 54 | 39 | 125 | <.1 | 5.5 | 3.8 | 9.3 | ||
1 Sample site in landfill sub-transect is MW1-18; sample site in parallel marsh sub-transect is N-1.
2 Sample sites in landfill sub-transect are MW1-2, P1-3 ,P1-4, 1MW-1; sample sites in parallel marsh sub-transect are N-2, N-3, N-4, N-5, N-7.
3 Sample sites in landfill sub-transect are 1MW-1, MW1-17; sample sites in parallel marsh sub-transect are N-8, C-1, C-2.
4 Sample sites in landfill sub-transect are MW1-6, MW1-5; sample sites in parallel marsh sub-transect are C-3, S-1.
5 Sample sites in landfill sub-transect are MW1-5, P1-6, P1-7, P1-9, MW1-4; sample sites in parallel marsh sub-transect are S-2, S-3, S-4, S-5, S-6.
For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page.
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