Water level, water temperature, and specific conductance data collected during natural gradient tests in observation wells set in the upper transmissive zone of the Ogallala Aquifer, North East 2nd Street Superfund Site, Happy, Texas, 2023
Dates
Publication Date
2024-03-12
Start Date
2023-11-06
End Date
2023-11-09
Citation
Harte, P.T., and Welch, S.M., 2024, Water level, water temperature, and specific conductance data collected during natural gradient tests in observation wells set in the upper transmissive zone of the Ogallala Aquifer, North East 2nd Street Superfund Site, Happy, Texas, 2023: U.S. Geological Survey data release, https://doi.org/10.5066/P9QA831I.
Summary
Water level, water temperature, and specific conductance data were collected during natural gradient tests on six observation wells screened in the upper transmissive zone of the Ogallala aquifer at the North East 2nd Street Superfund site in Happy, Texas, from November 6-13, 2023. Tests involved gravity draining 100-160 gallons of a low-concentration salt-spiked solution with an associated specific conductance of less than 8,000 microsiemens per centimeter (µs/cm) into the wells, measuring water level responses, and recording continuous downhole water temperature and water conductivity (specific conductance). Gravity drainage of the salt-spiked solution into each well took approximately 1 hour at average rates of 2.4 to 5.2 gallons [...]
Summary
Water level, water temperature, and specific conductance data were collected during natural gradient tests on six observation wells screened in the upper transmissive zone of the Ogallala aquifer at the North East 2nd Street Superfund site in Happy, Texas, from November 6-13, 2023. Tests involved gravity draining 100-160 gallons of a low-concentration salt-spiked solution with an associated specific conductance of less than 8,000 microsiemens per centimeter (µs/cm) into the wells, measuring water level responses, and recording continuous downhole water temperature and water conductivity (specific conductance). Gravity drainage of the salt-spiked solution into each well took approximately 1 hour at average rates of 2.4 to 5.2 gallons per minute. Depth profiles of water temperature and specific conductance were collected under ambient conditions (prior to draining the salt-spiked solution into each well). Another depth profile was collected after the salt-spiked solution was added to each well (to identify vertical changes in the water column of the well and the degree of vertical mixing of the spiked water). The single well natural gradient tests allow for the analysis of hydraulic responses of the aquifer during gravity drainage and assessment of ambient flow through the well after the emplacement of the salt-spiked solution and subsequent flushing out of the solution back to ambient conditions. Monitoring at each well continued for at least 24 hours after gravity-drainage of the salt-spiked solution into each well was completed to ascertain whether background conditions were achieved. This data release contains information on the well construction of the six wells tested in 2023 for natural gradient tests, the volume and concentration of the dilute salt spike used, profiles of specific conductance and water temperature of the wells pre- and post-spiked, water levels, and continuous monitoring of specific conductance and water temperature.
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NE2ndSt_NaturalGradient.xml “Metadata” Original FGDC Metadata
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16.86 KB
application/fgdc+xml
NE2ndSt_Continuous_SC_Temp.csv “Datafile ”
923.72 KB
text/csv
NE2ndSt_manual_waterlevels.csv “Datafile ”
2.78 KB
text/csv
NE2ndSt_GallonsDrained.csv “Datafile”
285 Bytes
text/csv
NE2ndSt_depth_profile.csv “Datafile”
9.55 KB
text/csv
NE2ndSt_well_properties.csv “Datafile”
1.3 KB
text/csv
NE2ndSt_processing.csv “Datafile”
441 Bytes
text/csv
NE2ndSt_data_dictionary.csv “Data Dictionary ”
8.85 KB
text/csv
TRUCK_HAPPYTX.jpg “Refilling water tank with potable water source, Happy, Tx. doi:10.5066/P9QA831I”
1.43 MB
image/jpeg
Purpose
The datasets provide information on the hydraulic and transport properties of the upper transmissive zone of the Ogallala aquifer at the North East 2nd Street Superfund site, Happy, Texas, using the response of the aquifer to the natural gradient tests in 6 observation wells. Tests were performed in the fall of 2023 and reflect the aquifer response to a low-stressed emplacement of a dilute salt spike in the wells and subsequent flushing of the well by ambient flow.
Preview Image
Refilling water tank with potable water source, Happy, Tx. doi:10.5066/P9QA831I