Water Quality Data Warehouse Viewer

The Bureau of Water Quality Planning's water quality monitoring program is designed to characterize surface-water resources throughout Nevada. The Bureau routinely monitors the water quality by collecting chemical and physical data from surface waters, statewide. In southern Nevada, some surface waters are monitored by other agencies rather than the Bureau.

Surface-water samples are typically collected three or more times per year at each sampling station, depending on the waterbody and the expected uses of the data. Samples are collected and analyzed as described in the Nevada Quality Assurance Program Plan (QAPrP) for Surface Water Sampling. This QA Program Plan also describes how field equipment is maintained and how field measurements are collected. Please note that data are continually being added to the database.  Most data from 2013 to present is under review and not yet available in the Viewer.

Use of the Data Warehouse Viewer: The viewer queries the Bureau’s Data Warehouse using a two-step process:
      1) select station(s) using either the map or filters and
      2) select the parameter(s) and date range.
      Hints: Hold 'Shift' and drag mouse to zoom in on selected area on the map.
               Use the green "Add" buttons to add your selections.

The queried data can either be previewed on-screen or downloaded to a zipped folder containing three files for access using a spreadsheet program: StationData.csv, NormalizedData.csv and WideData.csv. The “station data” file contains station name and location information. The “normalized data” file contains all the data in a standard database format. The “wide data” file contains just the parameters and values in a wide format for easier viewing.

Disclaimer
The Nevada Division of Environmental Protection makes no warranties or guarantees, either expressed or implied, as to the completeness, accuracy or correctness of the data portrayed in this product. Nor does the NDEP accept any liability arising from any incorrect, incomplete or misleading information contained therein. All information, data and databases are provided “as is”, including, but not limited to, fitness for a particular purpose.

Users should also note that water bodies, sample stations, and property boundaries included here do not represent on-the-ground surveys suitable for legal, engineering or surveying purposes. Geographic descriptions represent only approximate locations. By accessing this website or the data contained within the databases, you hereby release the NDEP, its employees, agents, contractors, and suppliers from any and all responsibility and liability associated with use of the data. In no event shall the NDEP or its officers or employees be liable for any damages arising out of the use of the website, or use of the information contained in the databases herein.

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