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Water Quality Samples for Arizona

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Welcome to the NWIS-Web for the Arizona Water Science Center


The majority of USGS Gaging Stations are funded though a cooperative program between the USGS other interested agencies.
Follow this link for information on the Cooperative Water Program with the USGS.

Arizona Water Science Center Home Page
Colorado Basin River Forecast Center (CBRFC) - provided by the National Weather Service, AHPS. CBRFC on a esri powered interactive map.
Threatened and Endangered USGS Gaging Stations in Arizona
Some complex retrievals may take a few minutes.
Choose Site Selection Criteria
There are 12,885 sites with water-quality data. Choose at least one of the following criteria to constrain the number of sites selected.

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          Data
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* Selection of more than one data attribute will include all samples that meet all conditions selected.