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


Nevada Water Science Center

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Carson Valley Browns Well

Primary Investigator: Doug Maurer

Well Data

Local Name Altitude Uppermost
Primary Aquifer Transmissivity
390321119465301 Brown's 4654 100 400 ALLUVIAL FILL 20000


Aquifer Test

All Aquifer Test Files (zip)

Browns Well

Aquifer Test (pdf)

A single-well step-drawdown test was conducted by Humboldt Drilling and Pump Company, Inc., of Winnemucca, 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 Resource Concepts, Inc.(RCI), the engineering firm in charge of the water-supply system for the Indian Hills General Improvement District. 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 for the test varied from 700, 1,000, 1,500, and 2,000 GPM for periods of 3 hours on 04/05/96. Water levels were measured with and electric sounder, and the method of flow-rate measurement, location of discharge of pumped water, and pre-test water-level trends are not known. The well was developed about 4 hours on 04/04/06 until about 7PM the day prior to the step-drawdown test. The test pump was set in a 10-inch liner installed to a depth of 370 ft and perforated from 100 to 370 ft. The liner was installed into the original 16-inch casing perforated from 100 to 294 ft.

Results of the test indicate a hydraulic conductivity and transmissivity of 40 ft/day and 20,000 ft2/day, respectively.



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