OFR 97-492: Bay City Quadrangle NURE HSSR Study

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National Geochemical Database—Reformatted Data from the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) Program

By Steven M. Smith
Version 1.40 (2006)

Brief History and Description of Data

[See History of NURE HSSR Program for a summary of the entire program.]

ORGDP: Bay City Quadrangle
Totals of 46 stream-sediment and 55 ground-water samples were collected from the Bay City quadrangle as part of the Oak Ridge Gaseous Diffusion Plant (ORGDP) Bay City Quadrangle NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) study. Field sampling was conducted by ORGDP personnel in March of 1980. These samples were analyzed by the ORGDP for uranium and other elements. The analytical data were released as the Bay City Quadrangle NURE HSSR study GJBX-170(81) report.

Summary Tables
The following is a list of NURE sample types collected in the Bay City quadrangle.

Summary of Bay City quadrangle sample types.
Sediment Sample Type Number of Samples Water Sample Type Number of Samples
Wet Streams 46 Wells 55
Total Sediments 46 Total Waters 55

These Bay City quadrangle samples were analyzed by one or more of the following methods:

Sediment Samples

Water Samples

Discussion of the Reformatting Process for Bay City Quadrangle

The Bay City quadrangle sediment and water data consist of reformatted records from the Bay City Quadrangle NURE HSSR study GJBX-170(81) report. No problems were found during the reformatting stages for the Bay City quadrangle data.

Download The Data

The NURE HSSR data are now available online in two databases: The sediment database (also includes data for soils and some rocks) at http://tin.er.usgs.gov/nure/sediment/ and the water database at http://tin.er.usgs.gov/nure/water/. From these two web sites, NURE HSSR data can be selected, examined, summarized, and downloaded by political boundaries (State and County), by quadrangle (1:250,000-scale, 1:100,000-scale, and 1:63,360-scale for Alaska or 1:24,000-scale for the Lower 48 States), and by hydrologic unit (drainage region, subregion, river basin, or sub-basin). Selected data can be downloaded as a dBase file, a shapefile, an HTML table, or ASCII text (tab- or comma-delimited).

Bay City Quadrangle Sediment Data - 46 records
Bay City Quadrangle Water Data - 55 records

Notes for Data Users

The ORGDP water samples were reportedly collected in the field without any filtering or acidification. (See the SAMPTYP coding explanation in the On-Line Manual for USGS-Reformatted NURE HSSR Data Files for descriptions of different Sample Types). However, the samples were filtered later in the laboratory through a 0.45 micron membrane filter before analysis. Therefore, the samples were not true "untreated water" samples and the analytical data may not be directly comparable for other quadrangle water samples of the same SAMPTYP when collected by a different laboratory. Since this was the standard procedure for Oak Ridge, water data from other Oak Ridge quadrangles should be comparable.

Latitude-longitude coordinates were reported in the original data files, as decimal degrees, to only 3 decimal places. Therefore, the precision of these coordinates is limited to +/- 0.001 degrees or +/- 3.6 seconds. This translates to a minimum precision of +/- 363 feet (111 m) for latitude values and between +/- 331 feet (101 m) to +/- 317 feet (97 m) for longitude values (calculated at latitudes of 25° and 30°N, respectively.)

Other NURE Geochemical Data for the Bay City Quadrangle

None found.

Bay City Quadrangle NURE Bibliography

Links Within Open-File Report 97-492

Back to Texas NURE data
Frequently Asked Questions Concerning NURE HSSR Data
Home Page: USGS National Geochemical Database - NURE HSSR data

Page written by Bryan G. Moravec and Steven M. Smith
Contact: Steven M. Smith (smsmith@usgs.gov)
Version 1.20: August 07, 2000
Version 1.30: September 11, 2001
Version 1.41: February 23, 2006

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