USGS Water Quality Samples for Dist. of Columbia: Sample Data

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News - updated April 17,2013

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Water Quality Samples for Dist. of Columbia

All Maryland-Delaware-District of Columbia times are reported in Eastern Standard Time (EST). To convert to Eastern Daylight Time (EDT) add 1 hour.

Some complex retrievals may take a few minutes.

Choose Site Selection Criteria

There are 137 sites in Dist. of Columbia with water-quality data. Choose at least one of the following criteria to constrain the number of sites selected.


Site -- Location --	Site -- Identifier --	Site -- Attribute --	Data -- Attribute * --
County Hydrologic Unit (by Code) Hydrologic Unit (by Name) Lat-Long box	Site Name Site Number Multiple Site Numbers Agency Code File of Site Numbers	Site type Drainage area Well depth Hole depth National aquifer (by code) National aquifer (by name) Local aquifer (by code) Local aquifer (by name)	Number of observations Period of record Sample medium type Parameter Codes File of Parameter Codes Parameter groupings

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

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U.S. Department of the Interior | U.S. Geological Survey
Title: Water Quality Samples for Dist. of Columbia: Sample Data
URL: http://nwis.waterdata.usgs.gov/dc/nwis/qwdata?

Page Contact Information: Dist. of Columbia Water Data Maintainer
Page Last Modified: 2013-05-21 09:00:50 EDT
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