OFR 97-492: Clarksburg Quadrangle NURE HSSR Study

  About USGS /  Science Topics /  Maps, Products & Publications /  Education / Publication: FAQ

 

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.]

West Virginia
Subcontractors for the Savannah River Laboratory (SRL) collected at least 2,965 stream-sediment, 2,910 surface-water, and 4,060 ground-water samples within 55 counties from West Virginia as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program. The sediment samples were collected during May - November 1978 and August - September 1979; water samples were collected during April - August 1977; May - September 1978; and July 1980. Sample coverage included portions of the Baltimore, Bluefield, Canton, Charleston, Charlottesville, Clarksburg, Columbus, Cumberland, Huntington, and Jenkins 1:250,000-scale quadrangles. (A total of 548 stream-sediment, 546 surface-water, and 718 ground-water samples were collected within the Clarksburg quadrangle.) These samples were sent to SRL for analysis of uranium and additional elements (16 in sediments and 9 in waters). SRL was able to analyze 2,919 sediments and 6,965 waters from West Virginia; this includes 545 sediment and 1,264 water sample from the Clarksburg quadrangle. The analytical and site location data for all West Virginia samples were released in the Delaware, Maryland, Virginia, and West Virginia Data Report [GJBX-103(82)].

Ohio
Subcontractors for the Savannah River Laboratory (SRL) collected at least 1,214 stream-sediment, 1,205 surface-water, and 2,049 ground-water samples within 20 counties from east central Ohio as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program. Field sampling was conducted during July - August, 1978. Sample coverage included portions of the Canton, Charleston, Clarksburg, Cleveland, Columbus, and Marion 1:250,000-scale quadrangles. (A total of 387 stream-sediment, 386 surface-water, and 572 ground-water samples were collected within the Clarksburg quadrangle.) These samples were sent to SRL for analysis of uranium and additional elements (16 in sediments and 9 in waters). SRL was able to analyze 330 sediments and 3,252 waters from Ohio; this includes 164 sediment and 958 water samples from the Clarksburg quadrangle. The analytical and site location data for all Ohio samples were released in the Illinois, Indiana, Kentucky, Tennessee, and Ohio Data Report [GJBX-105(82)].

Pennsylvania
Subcontractors for the Savannah River Laboratory (SRL) collected at least 4,499 stream-sediment, 4,401 surface-water, and 5,734 ground-water samples within 49 counties from Pennsylvania as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program. The sediment samples were collected during September - October 1976; July - December 1977; and July - August 1978, and water samples were collected during May - December 1977 and July - August 1978. Sample coverage included portions of the Baltimore, Canton, Clarksburg, Cleveland, Cumberland, Elmira, Harrisburg, Newark, Pittsburgh, Scranton, Warren, Williamsport, and Wilmington 1:250,000-scale quadrangles. (A total of 77 stream-sediment, 77 surface-water, and 106 ground-water samples were collected within the Clarksburg quadrangle.) These samples were sent to SRL for analysis of uranium and additional elements (16 in sediments and 9 in waters). SRL was able to analyze 4,287 sediments and 10,100 waters from Pennsylvania; this includes 76 sediment and 183 water samples from the Clarksburg quadrangle. The analytical and site location data for all Pennsylvania samples were released in the Pennsylvania, New Jersey, and New York Data Report [GJBX-106(82)].

SRL sent 3,851 sediment samples from Pennsylvania to an unnamed contract laboratory for "Supplemental Analyses." Supplemental analytical determinations for up to 23 elements were reported for 3,842 of these samples in the Pennsylvania, New Jersey, and New York Data Report [GJBX-106(82)]. The digital data file accompanying this report includes Supplemental Analyses for 3 Pennsylvania sediment samples within the Clarksburg quadrangle.

SRL: Clarksburg Quadrangle
SRL did not release a separate report for the Clarksburg quadrangle.

ORGDP: Clarksburg and Columbus Quadrangles
SRL sent several Ohio sediment samples to the Oak Ridge Gaseous Diffusion Plant (ORGDP) for analysis of uranium and 31 additional elements. ORGDP released the analytical data for 216 samples in the Clarksburg and Columbus Quadrangles GJBX-79(82) Data Report. This report includes results for 194 Clarksburg quadrangle sediment samples. The site coding information for this data set was summarized in the GJBX-51(82) report.

Gold Analyses
Data for gold analyses of sediments by SRL neutron activation were released in the GJBX-135(82) summary report. The introduction of that report states:

"This report contains previously unreported neutron-activation analyses of gold in sediment samples determined at SRL. These data were not included in the standard SRL NURE data reports because the gold spectrum was not measured in the original analytical procedure and the report format was designed without the gold analyses being included. Gold analyses became available as the analytical procedure was refined, but the report format was not modified to incorporate these data."

Only those sediment samples that had detectable concentrations of gold by neutron activation analysis were given in the GJBX-135(82) report. Sediment samples with concentrations below detection limits were not reported and can only be ascertained by identifying which samples were actually analyzed by neutron activation at SRL.

Summary Tables
Because of the various laboratories and analytical methods used, some SRL samples may have been analyzed once, twice, or not at all. The following table summarizes the analysis of Clarksburg quadrangle samples.

Combination of laboratories that analyzed samples for the Clarksburg quadrangle.
Laboratory Analysis Sediments Waters
Only SRL 760 2,405
Both SRL and Supplemental Labs 2 0
Only SRL Supplemental Lab 1 0
Only ORGDP Lab 171 0
Both SRL and ORGDP Labs 23 0
None 55 0
Total Samples 1,012 2,405
Total Data Records 1,035 2,405

The following is a list of all sample types collected and reported for NURE studies in the Clarksburg quadrangle.

Summary of Clarksburg quadrangle sample types.
Sediment Sample Type Number of Samples Water Sample Type Number of Samples
Wet Streams 1,012 Streams 1,009
    Wells 1,157
    Springs 239
Total Sediments 1,012 Total Waters 2,405

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

Sediment Samples

Water Samples



Discussion of the Reformatting Process for Clarksburg Quadrangle

Sediment Records
The Clarksburg quadrangle sediment data consist of reformatted records from the Ohio portion of the Illinois, Indiana, Kentucky, Tennessee, and Ohio Data Report [GJBX-105(82)], reformatted records from the West Virginia portion of the Delaware, Maryland, Virginia, and West Virginia Data Report [GJBX-103(82)], and reformatted records from the Pennsylvania portion of the Pennsylvania, New Jersey, and New York Data Report [GJBX-106(82)]. These records were compared and combined with records from the ORGDP Clarksburg and Columbus Quadrangles GJBX-79(82) Data Report. Site descriptive information and coordinates were compared for all corresponding records. The following problems were found and addressed during the reformatting process of the Clarksburg quadrangle sediment data:

  1. The SRL and the ORGDP Laboratory each analyzed the same 23 stream-sediment samples from Ohio. Because of overlapping data fields, it was necessary to create two data records for each sample to preserve all the data.
  2. During reformatting, contamination codes for "residential" and "recreation" were found to be missing from each State's CONTAMC field. The presence of one of these two codes was indicated only by a "." (period). The missing codes were assigned a value of "unknown" in the CONTAMC field within the final sediment data file.
  3. The original ORGDP files for the Clarksburg and Columbus quadrangles did not include all of the information about the character of the sample location. This missing information includes observations taken at each site on the stream width, depth, and flow, water color, surrounding vegetation, local relief, weather, and possible contaminants. In addition, the longitude coordinate reported in the ORGDP file only had 3 decimal places instead of the 4 decimal places found in the corresponding records from SRL State files. The missing site descriptive data and the complete longitude value were added to ORGDP records from the corresponding SRL State file records. Sources of data and any problems found are described in the REFORMAT comment field.
  4. The latitude and longitude coordinates for 4 stream-sediment samples collected within Harrison(1) and Marion(3) Counties in West Virginia were not found in the data during the reformatting process. The records for these 4 samples cannot be retrieved on a geographical basis.
  5. Gold concentrations from the GJBX-135(82) report were added to the appropriate sediment records. A value of -0.01 (<0.01 ppm Au) was added to all other sediment samples determined to have been analyzed by SRL neutron activation. This value was chosen because 0.01 is the lowest reported gold concentration in the entire report.

Water Records
The Clarksburg quadrangle water data consist of reformatted records from the the Ohio portion of the Illinois, Indiana, Kentucky, Tennessee, and Ohio Data Report [GJBX-105(82)], reformatted records from the West Virginia portion of the Delaware, Maryland, Virginia, and West Virginia Data Report [GJBX-103(82)], and reformatted records from the Pennsylvania portion of the Pennsylvania, New Jersey, and New York Data Report [GJBX-106(82)]. The following problems were found and addressed during the reformatting process of the Clarksburg quadrangle water data:

  1. One spring-water sample was collected at a longitude of exactly 80°W, the dividing line between the Clarksburg quadrangle and the Cumberland quadrangle and reported in the Pennsylvania State files. The record was assigned to the Cumberland quadrangle.
  2. The original NURE format for surface-water files did not include much information about the character of the sample location. This missing information includes observations taken at each site on the stream width, depth, and flow, water color, surrounding vegetation, local relief, weather, and possible contaminants. This information is given in records for stream-sediment samples that were collected at the same locations. The available site descriptive information for stream-water sites were compared with the corresponding stream-sediment site records. The missing site descriptive data were then added to stream-water records from the corresponding stream-sediment sample records. Sources of data and any problems found are described in the REFORMAT comment field.
  3. During reformatting, contamination codes for "residential" and "recreation" were found to be missing from each State's CONTAMC field. The presence of one of these two codes was indicated only by a "." (period). The missing codes were assigned a value of "unknown" in the CONTAMC field within the final sediment data file.
  4. An analysis of latitude-longitude site coordinates identified several ground-water samples that were missing coordinates, did not plot within expected state, county, or map boundaries, or had differing coordinates in corresponding records. To correct or confirm sample coordinates, the original field collection maps for Belmont County, Ohio were obtained and re-digitized. The newly re-digitized coordinates were added to the database and the coordinates from the original file(s) were recorded in the COORDPRB comment field. When the newly re-digitized coordinates were not significantly different, that confirmation of the site location was also noted in the COORDPRB comment field.
  5. After re-digitizing, four well-water samples from Belmont County, Ohio originally located in the Canton quadrangle now plot in the adjacent Clarksburg quadrangle.
  6. An unlikely sample collection date was found for one sample. This date was removed from the SAMPDAT field and the original SAMPDAT value with the most likely correct value was added as a comment to the REFORMAT field.
  7. The latitude and longitude coordinates for 6 water samples collected within Harrison(1), Marion(3), Marshall(1), and Ritchie(1) Counties in West Virginia were not found in the data during the reformatting process. The records for these 6 samples cannot be retrieved on a geographical basis.


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).

Clarksburg Quadrangle Sediment Data - 1,031 records
Clarksburg Quadrangle Water Data - 2,399 records



Notes for Data Users

In the eastern United States, SRL collected samples primarily by county. Often, not all counties within a quadrangle were completely sampled. Sample coverage in the Clarksburg quadrangle complete and includes samples from Athens, Belmont, Guernsey, Meigs, Monroe, Morgan, Muskingum, Noble, and Washington Counties in Ohio; Barbour, Calhoun, Doddridge, Gilmer, Harrison, Jackson, Lewis, Marion, Marshall, Mason, Monongalia, Pleasants, Ritchie, Taylor, Tyler, Upshur, Wetzel, Wirt, and Wood Counties in West Virginia; and Fayette, Greene, and Washington Counties in Pennsylvania. The laboratory and analytical methods used also may vary by county such that adjacent counties often have very different analytical coverage.

Fifty-five stream-sediment samples within the Clarksburg quadrangle were not analyzed by any of the various laboratories. The following table summarizes the locations of those unanalyzed samples.

General locations of unanalyzed samples.
State County Unanalyzed Samples Total Samples
Ohio Athens 4 25
Ohio Belmont 3 38
Ohio Guernsey 10 27
Ohio Muskingum 17 30
Ohio Noble 14 62
Ohio Washington 4 81
West Virginia Ritchie 1 60
West Virginia Taylor 1 18
West Virginia Wetzel 1 47



Other NURE Geochemical Data for the Clarksburg Quadrangle

None found.



Clarksburg Quadrangle NURE Bibliography



Links Within Open-File Report 97-492

Back to West Virginia NURE data
Back to Ohio NURE data
Back to Pennsylvania NURE data
Frequently Asked Questions Concerning NURE 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 1.41: February 23, 2006

USA.gov logo