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News - updated November 2009

USGS Water-Quality Monthly Statistics for Dist. of Columbia

All Data Times In MD-DE-DC Are Eastern Standard Time



Choose Site Selection Criteria
Choose from the following criteria to constrain the number of sites selected.   If no additional site-selection criteria are chosen and no additional specifications are defined on the following page then output will be for all 8 sites in Dist. of Columbia that have monthly statistics.
          Site
    -- Location -- 		          Site
    -- Identifier -- 		          Site
    -- Attribute -- 		          Data
    -- Attribute * --
County or county equivalent. i.e. Parish, Province, Municipio
Subsection of a major riversheds in a state
Latitude and longitude of two opposing corners in a box (NAD83 datum is assumed for DMS values.
Site names generally include river and lake names. For wells it can be the local number
Number 2 to 15 long that uniquely defines a site
Enter multiple Site numbers to display many stations at the same time
Organization identifier that set-up and administers the site. (USGS, NWS,..)
File on your computer that contains a list of Site numbers
(stream, lake, spring, precipitation, ..)
Drainage area
Select sites with more than a minimum number of observations
Select sites with a period of record that includes given dates

* Selection of more than one data attribute will include all samples that meet all conditions selected.
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Title: Surface Water data for Dist. of Columbia: USGS Water-Quality Monthly Statistics
URL: http://waterdata.usgs.gov/dc/nwis/monthly?

 Page Contact Information: Dist. of Columbia Water-Data Support Team
Page Last Modified: 2009-11-24 13:26:01 EST
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