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 North Nowlin

Primary Investigator: Doug Maurer

Well Data

Local Name Altitude Uppermost
Primary Aquifer Transmissivity
390136119451501 N. Nowlin 4689 80 374 ALLUVIAL FILL 1000


Aquifer Test

All Aquifer Test Files (zip)

North Nowlin

Aquifer Test (pdf)

A single-well step-drawdown test of the well was conducted by Carson Pump of Carson City. The well is completed in the basin-fill aquifer of Carson Valley, Nevada. Copies of the time-drawdown and pump data were obtained from files of the Douglas County, Community Development Department, Engineering Division (Carl Ruschmeyer, 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.

Rates for the step-drawdown test were varied from 250, 500, 750, and about 1000 GPM for periods of about 3 hours on 09/24/96. The pump rate varied considerably after stepping to 1,000 GPM and these data were not used in the analysis. Flow rates were measured with a totalizing meter, and pumped water was discharged through a 240 ft hose to a nearby ditch. The methods of water-level measurement and pre-test water-level trends are not known. The well was reported completed on 11/21/80, and it is assumed that the well was in use during the 16-year period prior to testing.

Results of the step-drawdown test indicate a hydraulic conductivity and transmissivity of 3 ft/day and 1,000 ft2/day, respectively.



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