Scientific Investigations Report 2006–5290
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5290
Table 3. Consolidations and adjustments to the raw microbiological and associated ground-water data by study unit and network, water use, principal aquifer, and lithology.
[Abbreviations: CCYK, Central Columbia Plateau-Yakima; CONN, Connecticut; GAFL, Georgia-Florida; HPGW, High Plains; KANA, Kanawha; PODL, Potomac-DelMarva; PUGT, Puget Sound Basin; SANJ, San Joaquin; TENN, lower and upper Tennessee; TRIN, Trinity; USNK, Upper Snake River; WMIC, Western Lake Michigan; MAS, major aquifer study; SWQA, source-water quality assessment]
| Adjustments made to reduce multiple observations at an individual well to a single representative value |
Adjustments and assumptions taken to populate selected data fields with missing values |
|---|---|
| HPGW: Removed 1 of 2 samples in June 2004 and retained the sample with an analysis of coliphage virus |
CCYK: For the SWQA network, principal aquifer assumed to be Columbia Plateau and primary lithology as volcanic (basalt) |
| KANA: Removed 1 of 2 pairs of samples (multiple quality-control samples) from 1 well |
CONN: Lithology assumed to be sand or sand and gravel |
| PODL: Removed 1 sample in 2004 from 1 well and retained the earlier 2001 sample, which was part of a larger set of results |
GAFL: For wells listed as cased test hole, assumed to be unused; lithology assumed to be limestone |
| PUGT: Removed the August 1998 samples and retained the March 1998 samples, which were part of larger sets of results for two land-use study networks. |
SANJ: For SWQA, lithology assumed to be alluvium |
| CCYK: Removed the October 1997 samples and retained the first set of samples collected in March-April 1997 for an urban land-use study network. |
TRIN: For some MAS-3 network wells, lithology assumed to be sand |
| USNK: For 42 of 82 wells in 1994 and 1995, retained the August monthly samples, some of which had corresponding chemical analyses. |
USNK: Lithology for 3 wells assumed to be basalt/volcanic and for 1 well, sand and gravel |
| TENN: Removed a 2001 sample from 5 wells and retained the 2000 samples, which were part of a larger set of data |
WMIC: Lithology for 2 wells assumed to be sand and gravel |
U.S.
Department of the Interior | U.S. Geological
Survey
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