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Water Quality Samples for Virginia

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! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.
Some complex retrievals may take a few minutes.
Site Selection
Select sites which meet all of the following criteria:   --- or select new criteria

Initial Site Selection Results -- 20 sites match criteria


site_no list = 01645704, 01645762, 01646305, 01656903, 01654500, 01645745, 01645844, 0165694286, 0165690673, 01657322, 01657394, 01653717, 01652789, 01652860, 01645940, 01655305, 0164425950, 01644343, 01653844, 01657100
Minimum number of samples = 1

Check one or more boxes to select sites for further display below:
  --- or click here to select all sites

USGS 0164425950 HORSEPEN RUN AB HORSEPEN RUN TRIB NR HERNDON, VA
Fairfax County, Virginia
Latitude  38°55'21.35", Longitude  77°24'20.78" NAD83
Gage datum 305.63 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2012-10-09 2024-02-28 137
USGS 01644343 SUGARLAND RUN TRIB BL CRAYTON RD NR HERNDON, VA
Fairfax County, Virginia
Latitude  38°59'54.97", Longitude  77°21'38.36" NAD83
Gage datum 277.14 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2012-10-09 2024-02-28 137
USGS 01645704 DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA
Fairfax County, Virginia
Latitude  38°53'04.5", Longitude  77°19'57.8" NAD27
Gage datum 288.1 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-03 2024-02-28 654
USGS 01645745 LITTLE DIFFICULT RUN NEAR VIENNA, VA
Fairfax County, Virginia
Latitude  38°54'35.8", Longitude  77°20'15.9" NAD83
Gage datum 245.5 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 201
USGS 01645762 S F LITTLE DIFFICULT RUN ABOVE MOUTH NR VIENNA, VA
Fairfax County, Virginia
Latitude  38°54'31.6", Longitude  77°20'18.8" NAD27
Gage datum 275.16 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-21 2024-02-28 685
USGS 01645844 OLD COURTHOUSE SPRING BRANCH NEAR VIENNA, VA
Fairfax County, Virginia
Latitude  38°56'20.5", Longitude  77°15'27.5" NAD83
Gage datum 275.2 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 201
USGS 01645940 CAPTAIN HICKORY RUN AT RT 681 NEAR GREAT FALLS, VA
Fairfax County, Virginia
Latitude  38°59'06.6", Longitude  77°17'19.1" NAD83
Gage datum 220.8 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 204
USGS 01646305 DEAD RUN AT WHANN AVENUE NEAR MCLEAN, VA
Fairfax County, Virginia
Latitude  38°57'34.8", Longitude  77°10'33.5" NAD27
Gage datum 177.18 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-03 2024-02-28 638
USGS 01652789 INDIAN RUN AT BREN MAR DRIVE AT ALEXANDRIA, VA
Fairfax County, Virginia
Latitude  38°47'59.3", Longitude  77°08'57.7" NAD83
Gage datum 90.1 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191
USGS 01652860 TURKEYCOCK RUN AT EDSALL RD AT ALEXANDRIA, VA
Fairfax County, Virginia
Latitude  38°48'15.0", Longitude  77°08'42.5" NAD83
Gage datum 94.7 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191
USGS 01653717 PAUL SPRING BR AB NORTH BRANCH NR GUM SPRINGS, VA
Fairfax County, Virginia
Latitude  38°44'37.5", Longitude  77°04'01.0" NAD83
Gage datum -12.6 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191
USGS 01653844 DOGUE CREEK TRIB AT WOODLEY DR AT MOUNT VERNON, VA
Fairfax County, Virginia
Latitude  38°43'27.66", Longitude  77°06'11.44" NAD83
Gage datum 25.04 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2012-10-09 2024-02-28 136
USGS 01654500 LONG BRANCH NEAR ANNANDALE, VA
Fairfax County, Virginia
Latitude  38°48'48.5", Longitude  77°14'12.3" NAD83
Gage datum 203.39 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
1952-11-21 2024-02-28 421
USGS 01655305 RABBIT BRANCH TRIBUTARY AB LAKE ROYAL NR BURKE, VA
Fairfax County, Virginia
Latitude  38°48'30.3", Longitude  77°17'48.42" NAD83
Gage datum 301.70 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2012-10-09 2024-02-28 137
USGS 01656903 FLATLICK BRANCH ABOVE FROG BRANCH AT CHANTILLY, VA
Fairfax County, Virginia
Latitude  38°52'56.2", Longitude  77°25'55.9" NAD27
Gage datum 256.8 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-11 2024-02-28 617
USGS 0165690673 FROG BRANCH ABOVE FLATLICK BRANCH AT CHANTILLY, VA
Fairfax County, Virginia
Latitude  38°52'52.1", Longitude  77°25'49.7" NAD83
Gage datum 242.9 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191
USGS 0165694286 BIG ROCKY RUN AT STRINGFELLOW RD NR CHANTILLY, VA
Fairfax County, Virginia
Latitude  38°52'05.4", Longitude  77°24'28.0" NAD83
Gage datum 297.8 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191
USGS 01657100 WILLOW SPRINGS BRANCH AT HWY 29 NR CENTREVILLE, VA
Fairfax County, Virginia
Latitude  38°50'26", Longitude  77°23'45" NAD27
Gage datum 348.45 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2012-10-09 2024-02-28 137
USGS 01657322 POPES HEAD CREEK TRIB NEAR FAIRFAX STATION, VA
Fairfax County, Virginia
Latitude  38°47'52.8", Longitude  77°20'58.9" NAD83
Gage datum 220.1 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191
USGS 01657394 CASTLE CREEK AT NEWMAN ROAD AT CLIFTON, VA
Fairfax County, Virginia
Latitude  38°47'17.7", Longitude  77°22'50.4" NAD83
Gage datum 176.3 feet above NAVD88
Site Type: Stream

Period of record
Begin Date End Date Samples
2008-04-24 2024-02-28 191

 
Choose Output Format
Display Summary of Selected Sites
Choose one of the following options for displaying descriptions of the sites meeting the criteria above:
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Show sites on a mapNew
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Table of sites
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Scroll list of sites -- allows selection of data for multiple sites
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Brief descriptions -- allows selection of data for multiple sites
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        (Select fields to include in site-description output)
       
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Save file of selected sites to local disk for future upload

Retrieve Water-Quality Samples for Selected Sites
Choose one of the following options for displaying data for the sites meeting the criteria above
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Parameter Group Period of Record table
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*
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Retrieve data from: to: (YYYY-MM-DD -- Blank = all data)
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Retrieve sample time and time zone as stored   in UTC
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Retrieve samples for specified parameter values: (Parameter Code) (Numeric Value)
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Samples and parameters to include:
   Samples that include only above parameter selection criteria (Count: 0)
   Samples that include above selection criteria and all associated parameters
   
    <--Find parameter codes
   Samples that include above selection criteria plus one or more of these parameters in a file
    Enter the full pathname of a file containing parameter codes. (Limit: 200 codes)
    
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Table of data
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Tab-separated data *

 * Save compressed files with a .gz file extension.