Nevada Water Science Center

Aquifer Tests

Contact Information

Phil Gardner
Groundwater Specialist
Phone: (775) 887-7664


Mailing Address
Nevada Water Science Center
2730 N. Deer Run Rd.
Carson City, NV 89701


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Carson Valley Gardnerville 4

Primary Investigator: Doug Maurer

Well Data

Local Name Altitude Uppermost
Primary Aquifer Transmissivity
385611119435601 g-ville No. 4 4785 125 305 ALLUVIAL FILL 7700


Aquifer Test

All Aquifer Test Files (zip)

Gardnerville 4

Aquifer Test (pdf)


A single-well constant-rate test was conducted by Carson Pump of Carson City, Nevada. The well is completed in the basin-fill aquifer of Carson Valley, Nevada. Copies of time-drawdown and pump data were obtained from files of the Gardnerville Water Company (Mark Gonzales, written commun. 2005). Results of the aquifer test will be used in the development of a numerical ground-water flow model in Carson Valley, project # 9705-BPS01. Specifically, the estimated transmissivity will be used to develop a relation between transmissivity and specific yield. The relation will then be used with data from driller’s logs to develop a preliminary distribution of transmissivity for the valley. The pump rate during the test was 1,000 GPM, measured with a totalizing flow meter, for a period of 28 hours from 12/8/03 to 12/9/03. The methods of water-level measurement, location of discharge of pumped water, and pre-test water-level trends are not known. The well was reported completed on 4/30/70, and the well was likely in use the entire 33-year period between completion and testing. Time-drawdown data were analyzed using an Excel spreadsheet program (Halford and Kuniansky, 2002) and the Cooper-Jacob analysis. Results of the test indicate a hydraulic conductivity and transmissivity of 26 ft/day and 7,700 ft2/day, respectively.


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