{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "Location of wells drilled in Nevada and reported to the Nevada Division of Water Resources", "description": "
The data in this feature class is updated every business day. <\/SPAN><\/P> This feature class contains the location and site attributes of drilled wells in Nevada. Licensed well drillers submit well logs (reports) to NDWR. This information is entered into the Well Log database (waterdb) in SQL Server. XY coordinates are displayed in GIS format for convenience in identifying wells. <\/SPAN><\/P> Two additional fields are calculated for specific capacity and transmissivity. <\/SPAN><\/P> Specific capacity is yield divided by drawdrawn with units in gpm/ft. If yield or drawdown fields are blank, specific capacity is blank.<\/SPAN><\/P><\/LI> Transmissivity is specific capacity times 267. Estimated transmissivities (sp x 267) are in units ft2/d. <\/SPAN><\/P><\/LI><\/UL> The reference for the approximation of transmissivity from specific capacity is:<\/SPAN><\/P> Thomasson, H.J., F.H. Olmstead, and E.R. LeRoux. 1960. Geology, water resources, and usable ground water storage capacity of part of Salano County, CA. U.S. Geological Survey Water Supply Paper 1494. 693 pp.<\/SPAN><\/P>