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Water Quality Samples for USA
Grouped by County

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 Results -- 330 sites found


Hydrologic unit = 02070008
Minimum number of samples = 1

Save file of selected sites to local disk for future upload

Data for individual sites can be obtained by selecting the site number below

  group icon District Of Columbia, Dist. of Columbia
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01646563 MILL CREEK TRIB NR DALECARLIA RES AT WASHINGTON DC 2007-12-10 2007-12-10 1
USGS 01646565 EAST CREEK NR DALECARLIA RES AT WASHINGTON, DC 2006-08-08 2007-12-10 2
USGS 0164656550 EAST CREEK TRIB NR DALECARLIA RES AT WASHINGTON DC 2007-12-10 2007-12-10 1
USGS 01646566 EAST CREEK AT DALECARLIA RES AT WASHINGTON, DC 2006-08-08 2007-12-10 2
USGS 01651830 BLUE PLAINS WWT PLANT OUTFALL AT WASHINGTON, DC 2002-06-18 2002-06-18 1
USGS 385257077001101 WW Cc 38 2016-10-01 2016-12-19 6
USGS 385604077053801 WW Ba 46 2019-09-12 2019-09-12 1
USGS 385605077053501 WW Ba 42 2019-09-13 2021-02-24 3
USGS 385605077053502 WW Ba 43 2019-09-13 2019-09-13 1
USGS 385605077053503 WW Ba 44 2019-09-17 2019-09-17 1
USGS 385605077053901 SV-MP-02 35 to 44 ft 2019-09-17 2020-06-25 2
USGS 385605077053902 SV-MP-02 49 to 54 ft 2019-09-16 2020-06-26 2
USGS 385605077053903 SV-MP-02 56 to 71 ft 2019-09-16 2020-06-25 2
USGS 385605077053904 SV-MP-02 73 to 77 ft 2019-09-17 2020-06-26 2
USGS 385605077053905 SV-MP-02 96 to 102 ft 2019-09-17 2020-06-26 2
USGS 385605077053906 SV-MP-02 105 to 114 ft 2019-09-12 2020-06-26 2
USGS 385605077053907 SV-MP-02 123 to 129 ft 2019-09-12 2020-06-26 2
USGS 385605077053908 SV-MP-02 145 to 160 ft 2019-09-12 2020-06-26 2
USGS 385606077053301 WW Ba 40 2019-09-14 2019-09-14 1
USGS 385606077053302 WW Ba 41 2019-09-14 2021-03-01 3
USGS 385606077053901 WW Ba 45 2019-09-12 2019-09-12 1
USGS 385620077062201 SW-7 2006-08-08 2007-12-10 2
USGS 385634077063201 Res-1 2006-08-08 2007-12-10 2
  group icon Frederick County, Maryland
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01636780 POTOMAC RIVER NEAR BRUNSWICK, MD 2012-11-27 2012-11-27 3
USGS 01636845 LITTLE CATOCTIN CREEK NEAR ROSEMONT, MD 2017-01-03 2020-05-01 332
USGS 01636846 LITTLE CATOCTIN CREEK AT ROSEMONT, MD 2017-01-23 2020-05-01 314
USGS 01636850 LITTLE CATOCTIN CREEK NEAR BRUNSWICK MD 1982-03-10 1983-06-16 4
USGS 01637000 LITTLE CATOCTIN CREEK AT HARMONY, MD 1968-02-29 1968-12-19 6
USGS 01637500 CATOCTIN CREEK NEAR MIDDLETOWN, MD 1947-09-11 2004-08-04 271
USGS 01637950 BROAD RUN NEAR JEFFERSON, MD 1994-08-24 1994-08-24 1
USGS 01638050 CATOCTIN CREEK AT OLIVE, MD 1982-03-10 1994-06-16 6
USGS 01638500 POTOMAC RIVER AT POINT OF ROCKS, MD 1959-03-03 1992-04-23 554
USGS 01638520 POTOMAC RIVER TRIBUTARY AT POINT OF ROCKS, MD 1982-03-09 1983-06-15 4
USGS 01638600 TUSCARORA CREEK AT TUSCARORA, MD 1982-03-10 1983-06-15 4
USGS 391537077284601 FR Fd 16 1956-05-09 1995-07-17 2
USGS 391558077312201 FR Fc 33 1972-08-07 1972-08-07 1
USGS 391613077293401 FR Fd 83 1972-07-28 1972-07-28 1
USGS 391615077315001 FR Fc 24 1969-03-24 1969-03-24 1
USGS 391624077325301 Potomac River Bed above Point of Rocks 2004-08-18 2005-11-03 2
USGS 391629077321601 FR Fc 14 1955-12-20 1970-05-07 2
USGS 391641077315601 FR Fc 31 1982-07-29 1983-04-14 2
USGS 391643077293201 FR Fd 93 1999-08-10 1999-08-10 1
USGS 391739077333001 FR Fc 30 1969-05-28 1969-05-28 1
USGS 391806077284001 FR Fd 92 1994-06-14 2019-02-26 2
USGS 391832077282801 FR Fd 91 1982-09-01 1983-04-13 2
USGS 391845077282204 FR Fd 4 1946-12-26 1946-12-26 1
USGS 391846077370501 FR Fb 12 1981-08-21 2000-10-19 8
USGS 391936077321101 FR Fc 15 1970-05-07 1970-05-07 1
USGS 391959077384601 FR Fb 1 1955-04-01 1955-04-01 1
USGS 392011077383301 FR Eb 18 1970-05-07 1970-05-07 1
USGS 392015077322601 FR Ec 16 1970-05-07 1970-05-07 1
USGS 392021077363101 FR Eb 19 1970-05-07 1970-05-07 1
USGS 392025077290401 FR Ed 89 1982-10-05 1983-04-13 2
USGS 392031077322601 FR Ec 15 1970-05-11 1970-05-11 1
USGS 392043077364101 FR Eb 20 1970-05-07 1970-05-07 1
USGS 392054077370201 FR Eb 34 1982-09-02 1983-04-25 2
USGS 392121077342101 FR Ec 8 1970-05-07 1970-05-07 1
USGS 392131077331601 FR Ec 9 1970-05-11 1970-05-11 1
USGS 392142077314901 FR Ec 11 1970-05-07 1970-05-07 1
USGS 392144077315401 FR Ec 14 1970-05-07 1970-05-07 1
USGS 392151077373101 FR Eb 25 1982-10-06 1983-04-14 2
USGS 392206077383501 AT 22029 UNNAMED TRIB TO LITTLE CATOCTIN CREEK MD 2010-10-26 2010-10-26 1
USGS 392223077343201 FR Ec 10 1970-05-07 1970-05-07 1
USGS 392232077381402 FR Eb 8 1970-05-07 1970-05-07 1
USGS 392343077354801 FR Eb 1 1970-05-11 1970-05-11 1
USGS 392404077364201 FR Eb 3 1970-05-07 1970-05-07 1
USGS 392410077363402 FR Eb 33 1982-09-02 1983-04-14 2
USGS 392418077363201 FR Eb 5 1970-05-07 1970-05-07 1
USGS 392457077343001 FR Ec 2 1970-05-07 1970-05-07 1
USGS 392548077331601 FR Dc 21 1955-12-20 1955-12-20 1
USGS 392551077332401 FR Dc 20 1970-05-11 1970-05-11 1
USGS 392620077313601 FR Dc 16 1956-05-09 1956-05-09 1
USGS 392648077340401 FR Dc 67 1996-07-10 1996-07-10 1
USGS 392649077333001 FR Dc 13 1970-05-12 1970-05-12 1
USGS 392650077305201 FR Dc 39 1982-09-03 1983-04-14 2
USGS 392650077343001 FR Dc 68 1996-07-10 2002-07-30 2
USGS 392657077333601 FR Dc 14 1970-05-11 1970-05-11 1
USGS 392708077300901 FR Dc 6 1955-12-20 1970-05-20 3
USGS 392708077344801 FR Dc 19 1970-05-11 1970-05-11 1
USGS 392718077321501 FR Dc 9 1970-05-12 1970-05-12 1
USGS 392721077333401 FR Dc 65 1982-07-28 1983-04-14 2
USGS 392731077310901 FR Dc 30 1970-05-12 1970-05-12 1
USGS 392734077313501 FR Dc 29 1970-05-12 1970-05-12 1
USGS 392736077351101 FR Db 1 1970-05-12 1970-05-12 1
USGS 392737077350701 FR Db 2 1955-04-01 1955-04-01 1
USGS 392737077350702 FR Db 3 1970-05-12 1970-05-12 1
USGS 392742077314701 FR Dc 28 1970-05-12 1970-05-12 1
USGS 392834077331401 FR Dc 66 1994-06-08 2014-06-11 4
USGS 392854077370101 AT 23099 UNNAMED TRIBUTARY TO BOLIVAR BROOK MD 2010-04-27 2010-04-27 1
USGS 392934077343401 FR Dc 3 1970-05-14 1970-05-14 1
USGS 392940077321901 FR Dc 7 1970-05-12 1970-05-12 1
USGS 392944077365201 FR Db 4 1970-05-12 1970-05-12 1
USGS 393038077350401 FR Cb 19 1982-07-28 1983-06-20 2
USGS 393041077340901 FR Cc 8 1970-05-12 1970-05-12 1
USGS 393135077350301 FR Cb 5 1970-05-14 1970-05-14 1
USGS 393223077330201 FR Cc 15 1970-05-14 1970-05-14 1
USGS 393246077312701 FR Cc 6 1970-05-14 1970-05-14 1
USGS 393306077325801 FR Cc 16 1970-05-14 1970-05-14 1
USGS 393443077330401 FR Cc 3 1970-05-14 1970-05-14 1
USGS 393500077332702 FR Bc 6 1970-05-14 1970-05-14 1
USGS 393513077333101 FR Bc 2 1955-04-04 1970-05-14 2
USGS 393521077333201 FR Bc 4 1970-05-14 1970-05-14 1
  group icon Montgomery County, Maryland
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01643615 BROAD RUN AT ELMER, MD 1979-10-02 1994-08-24 9
USGS 01644148 POTOMAC RIVER AT EDWARDS FERRY NEAR POOLESVILLE,MD 2022-09-01 2022-09-01 1
USGS 01644481 GREAT SENECA CREEK AT GOSHEN, MD 1994-08-24 1994-08-24 1
USGS 01644600 GREAT SENECA CREEK NEAR QUINCE ORCHARD, MD 2022-08-04 2022-08-04 1
USGS 01645000 SENECA CREEK AT DAWSONVILLE, MD 1959-03-03 1995-08-16 237
USGS 01645050 DRY SENECA CREEK NEAR SENECA, MD 1979-08-27 1979-08-27 1
USGS 01645080 SENECA CREEK NEAR SENECA, MD 2022-08-04 2022-08-04 1
USGS 01645200 WATTS BRANCH AT ROCKVILLE, MD 1960-05-28 1986-12-09 117
USGS 01645295 POTOMAC RIVER BELOW WATTS BRANCH NEAR POTOMAC, MD 2002-06-18 2002-06-18 1
USGS 01645300 POTOMAC RIVER NEAR POTOMAC, MD 2001-08-08 2001-08-08 1
USGS 01645500 POTOMAC RIVER AT GREAT FALLS, MD 1973-01-08 1980-01-24 48
USGS 01646350 CABIN JOHN CREEK AT ROCKVILLE, MD 1994-08-24 1994-08-24 1
USGS 01646500 POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA 1965-08-09 2022-10-19 58
USGS 01646508 POTOMAC RIVER BACKUP STATION 1988-08-31 1993-11-05 16
USGS 01646550 LITTLE FALLS BRANCH NEAR BETHESDA, MD 1974-10-21 1977-11-18 18
USGS 01646562 DALECARLIA/POTOMAC R WATER INTAKE NEAR BETHESDA MD 2007-12-10 2007-12-10 1
USGS 01646564 MILL CREEK AT DALECARLIA RES NEAR CHEVY CHASE, MD 2006-08-08 2007-12-10 2
USGS 01646567 EAST CREEK AT DALECARLIA RES NEAR CHEVY CHASE, MD 2006-08-08 2007-12-10 2
USGS 01646568 MILL CREEK AT DALECARLIA RES NEAR BETHESDA, MD 2006-08-08 2007-12-10 2
USGS 01646569 MILL CREEK AT DALECARLIA RES AT BROOKMONT, MD 2006-08-08 2007-12-10 2
USGS 385828077111701 MO Fe 12 1956-11-19 1956-11-19 1
USGS 385920077132901 MO Fe 4 1952-12-17 1952-12-17 1
USGS 385946077095901 MO Ff 18 1981-08-19 1981-08-19 1
USGS 390002077145402 MO Ee 42 1970-07-29 1970-07-29 1
USGS 390242077073101 MO Ef 16 1946-02-20 1946-02-20 1
USGS 390254077092901 MO Ef 61 2014-07-01 2014-07-01 3
USGS 390254077111901 MO Ee 21 1952-04-08 1952-04-08 1
USGS 390408077154801 MO Ed 1 1952-12-17 1952-12-17 1
USGS 390412077230301 MO Ec 8 1969-02-05 1969-02-05 1
USGS 390451077245901 MO Ec 10 1979-11-27 1979-11-27 1
USGS 390532077160301 MO Dd 29 2020-02-26 2020-02-26 1
USGS 390533077125201 MO De 52 2003-07-02 2015-07-08 2
USGS 390538077195701 MO Dd 28 2003-07-01 2011-08-16 5
USGS 390540077253401 MO Db 42 1972-03-10 1972-03-10 1
USGS 390553077225501 MO Dc 89 1999-08-12 1999-08-12 1
USGS 390555077281601 MO Db 28 1969-02-14 1969-02-14 1
USGS 390614077213401 MO Dc 48 1978-10-19 1978-10-19 1
USGS 390617077223601 MO Dc 86 1994-06-07 1994-06-07 1
USGS 390710077254101 MO Db 37 1971-10-14 1971-10-14 1
USGS 390714077272001 MO Db 61 1999-08-12 1999-08-12 1
USGS 390726077162601 MO Dd 25 1994-06-09 2014-06-12 4
USGS 390742077205501 MO Dc 1 1951-03-08 1951-03-08 1
USGS 390745077283901 MO Db 26 1978-07-12 1978-08-12 2
USGS 390752077243101 MO Dc 72 1978-10-18 1978-10-18 1
USGS 390802077283801 MO Db 68 1978-07-13 2001-07-24 13
USGS 390804077265901 MO Db 49 1978-10-19 1978-10-19 1
USGS 390809077252101 MO Db 47 1978-10-18 1978-10-18 1
USGS 390822077202801 MO Dc 30 1972-10-04 1972-10-04 1
USGS 390823077305701 MO Da 2 1969-02-18 1969-02-18 1
USGS 390833077115501 MO De 2 1951-03-08 1951-03-08 1
USGS 390834077242001 MO Dc 31 1978-10-18 1978-10-18 1
USGS 390844077250101 MO Db 1 1952-05-22 1952-05-22 1
USGS 390846077233201 MO Dc 32 1972-10-17 1972-10-17 1
USGS 390846077295801 MO Db 83 1999-08-30 1999-08-30 1
USGS 390906077145601 MO De 51 2003-06-12 2020-02-26 3
USGS 390918077312201 WHITES FERRY, POTOMAC MARYLAND 2005-11-03 2005-11-03 1
USGS 390919077310701 MO Da 1 1952-05-16 1952-05-16 1
USGS 390946077240401 MO Dc 5 1978-10-18 1978-10-18 1
USGS 390948077145401 MO De 50 2003-06-24 2019-02-04 3
USGS 390950077265701 MO Db 45 1972-10-17 1972-10-17 1
USGS 390951077162301 MO Dd 26 2003-06-24 2015-07-08 2
USGS 391004077132601 MO Ce 26 2003-06-19 2015-08-19 10
USGS 391008077140701 MO Ce 13 1946-10-12 1946-10-12 1
USGS 391045077293301 MO Cb 18 1969-02-24 1969-02-24 1
USGS 391049077153201 MO Cd 27 1956-01-30 1956-01-30 1
USGS 391050077205701 MO Cc 29 1972-10-04 1972-10-04 1
USGS 391052077151601 MO Cd 26 1955-08-09 1955-08-09 1
USGS 391057077243501 MO Cc 31 1978-07-12 2019-02-26 3
USGS 391102077101901 MO Ce 24 2003-06-18 2015-07-09 4
USGS 391113077125101 MO Ce 21 2003-06-17 2015-08-19 2
USGS 391114077114201 MO Ce 22 2003-06-18 2015-07-01 2
USGS 391119077134601 MO Ce 25 2003-06-23 2015-08-18 2
USGS 391138077110101 MO Ce 23 2003-08-13 2003-08-13 1
USGS 391142077280601 MO Cb 26 1972-05-01 1972-06-02 2
USGS 391211077224601 MO Cc 30 1978-10-18 1978-10-18 1
USGS 391240077225601 MO Cc 73 1994-08-01 2014-06-10 4
USGS 391254077244201 MO Cb 36 1999-08-11 2002-07-30 3
USGS 391313077253101 MO Cb 24 1978-10-18 1978-10-18 1
USGS 391314077252101 MO Cb 1 1952-05-22 1952-05-22 1
USGS 391334077155201 MO Cd 15 1952-12-17 1952-12-17 1
USGS 391403077114001 MO Ce 18 1995-11-06 2002-08-13 13
USGS 391410077114001 MO Ce 19 1995-11-29 1995-11-29 1
USGS 391411077114701 MO Ce 20 1995-12-06 1995-12-06 1
USGS 924031000000001 MD 14T 2022-09-29 2022-09-29 2
MD058 92403100230012 MD 14R 2022-09-29 2022-09-29 1
  group icon Washington County, Maryland
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01636730 ISRAEL CREEK AT WEVERTON, MD 1985-09-25 1986-08-22 3
USGS 391932077421701 WA Fi 12 1964-11-28 1964-11-28 1
USGS 392021077413401 WA Ei 74 1987-04-14 1987-04-14 1
USGS 392125077420302 WA Ei 93 1987-05-20 1987-05-20 1
USGS 392127077403901 AT 23097 UNNAMED INTERMITTENT TRIB TO ISRAEL CR MD 2010-04-27 2011-03-15 2
USGS 392232077393401 WA Ej 5 1982-05-04 1982-05-04 1
USGS 392436077384901 WA Ej 21 1987-05-20 1987-05-20 1
  group icon Clarke County, Virginia
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 390109078030901 46W193 2009-05-21 2009-05-21 1
USGS 390455078004401 46W192 2009-05-18 2009-05-18 1
USGS 390954077574301 47X 90 2009-05-20 2009-05-20 1
  group icon Fairfax County, Virginia
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 0164425950 HORSEPEN RUN AB HORSEPEN RUN TRIB NR HERNDON, VA 2012-10-09 2024-02-28 137
USGS 01644260 HORSEPEN RUN TRIBUTARY NEAR FLORIS, VA 1977-08-05 1977-08-05 1
USGS 01644270 HORSEPEN RUN NEAR HERNDON, VA 1977-08-05 1977-08-05 1
USGS 01644290 STAVE RUN AT RESTON, VA 1968-03-12 1971-06-18 25
USGS 01644291 STAVE RUN NEAR RESTON, VA 1971-10-04 1976-11-01 170
USGS 01644295 SMILAX BRANCH AT RESTON, VA 1968-03-12 1977-06-01 118
USGS 01644300 SUGARLAND RUN AT HERNDON, VA 1969-05-04 1979-08-29 3
USGS 01644343 SUGARLAND RUN TRIB BL CRAYTON RD NR HERNDON, VA 2012-10-09 2024-02-28 137
USGS 01644370 SUGARLAND RUN NEAR DRANESVILLE, VA 1977-08-05 1977-08-29 2
USGS 01645160 NICHOLS RUN NEAR DRANESVILLE, VA 1968-11-26 1977-08-05 2
USGS 01645704 DIFFICULT RUN ABOVE FOX LAKE NEAR FAIRFAX, VA 2008-04-03 2024-02-28 654
USGS 0164571012 DIFFICULT RUN ABOVE ROCKY BRANCH AT VIENNA, VA 2011-09-20 2018-06-19 9
USGS 0164571592 ROCKY BRANCH ABOVE TRIB2 NEAR VIENNA, VA 2012-04-04 2017-10-26 6
USGS 0164572408 ROCKY BRANCH TRIB2 AB ROCKY BRANCH NEAR VIENNA, VA 2012-04-04 2017-10-26 6
USGS 0164572424 ROCKY BRANCH AT MOUTH NEAR VIENNA, VA 2011-09-20 2018-06-19 10
USGS 01645725 DIFFICULT RUN NEAR VIENNA, VA 1994-08-24 2018-06-19 10
USGS 0164572684 DIFFICULT RUN TRIB BL VALESTRA CIR NR VIENNA, VA 2011-12-05 2017-10-26 7
USGS 0164573302 DIFFICULT RUN AB LITTLE DIFFICULT RN NR VIENNA, VA 2011-09-20 2018-06-19 9
USGS 01645745 LITTLE DIFFICULT RUN NEAR VIENNA, VA 2008-04-24 2024-02-28 201
USGS 01645750 S F LITTLE DIFFICULT RUN NEAR FAIRFAX, VA 1969-05-06 1977-08-29 2
USGS 01645762 S F LITTLE DIFFICULT RUN ABOVE MOUTH NR VIENNA, VA 2008-04-21 2024-02-28 685
USGS 0164577696 LITTLE DIFFICULT RUN AT MOUTH NEAR VIENNA, VA 2011-09-20 2018-06-19 9
USGS 0164577971 DIFFICULT RUN ABOVE SNAKEDEN BRANCH NR VIENNA, VA 2011-09-20 2018-06-19 9
USGS 01645784 SNAKEDEN BRANCH AT RESTON, VA 1973-01-22 2018-06-19 53
USGS 0164578730 SNAKEDEN BRANCH TRIB NR S LAKES DR AT RESTON, VA 2022-04-04 2022-04-04 1
USGS 0164578734 SNAKEDEN BRANCH ABOVE LAKE AUDUBON AT RESTON, VA 2021-05-18 2024-03-05 68
USGS 0164578816 SNAKEDEN BRANCH BL TWIN BRANCHES RD AT RESTON, VA 2011-09-20 2018-06-19 11
USGS 0164579522 THE GLADE NEAR HOWLAND DRIVE AT RESTON, VA 2021-05-18 2024-03-05 64
USGS 0164579580 THE GLADE AT TWIN BRANCHES ROAD AT RESTON, VA 2011-09-20 2018-06-19 9
USGS 0164579743 SNAKEDEN BRANCH AT MOUTH NEAR VIENNA, VA 2011-09-20 2018-06-19 9
USGS 01645799 DIFFICULT RUN AT W&OD RR NEAR VIENNA, VA 2011-09-20 2018-06-19 9
USGS 01645800 PINEY BRANCH AT VIENNA, VA 1969-04-28 1977-08-29 2
USGS 0164580569 PINEY BRANCH NEAR VIENNA, VA 2011-09-20 2017-10-26 8
USGS 0164581169 PINEY BRANCH AT MOUTH NEAR VIENNA, VA 2011-09-20 2018-06-19 9
USGS 0164582028 DIFFICULT RUN AT BROWNS MILL ROAD AT KENMORE, VA 2011-09-19 2018-06-18 11
USGS 0164583313 WOLFTRAP CREEK AT BOIS AVENUE NEAR VIENNA, VA 2011-09-20 2018-06-18 9
USGS 01645844 OLD COURTHOUSE SPRING BRANCH NEAR VIENNA, VA 2008-04-24 2024-02-28 201
USGS 01645850 WOLFTRAP CREEK NEAR VIENNA, VA 1977-08-05 2018-06-18 10
USGS 0164585869 DIFFICULT RUN ABOVE COLVIN RUN AT KENMORE, VA 2011-09-19 2018-06-18 11
USGS 0164589340 COLVIN RUN ABOVE LAKE FAIRFAX AT RESTON, VA 2011-09-20 2018-06-18 10
USGS 01645900 COLVIN RUN AT RESTON, VA 1977-08-05 2018-06-18 11
USGS 0164590968 COLVIN RUN AT MOUTH AT KENMORE, VA 2011-09-19 2018-06-18 10
USGS 0164592501 DIFFICULT RUN AB CAPTAIN HICKORY RN AT KENMORE, VA 2011-09-19 2018-06-18 9
USGS 0164592650 CAPTAIN HICKORY RUN AT GOULDMAN LN NR RESTON, VA 2013-07-31 2013-07-31 1
USGS 0164592780 CPT HKRY RN TRB 10 YDS AB RUNAWAY LN NR RESTON, VA 2013-07-31 2013-07-31 1
USGS 0164592810 CPT HKRY RN TRB 75 YDS BL RUNAWAY LN NR RESTON, VA 2013-07-31 2013-07-31 1
USGS 0164592829 CAPTAIN HICKORY RUN TRIB RT DRAIN NR RESTON, VA 2013-07-31 2017-10-25 5
USGS 0164592846 CAPTAIN HICKORY RUN AT POLO PL NR GREAT FALLS, VA 2012-07-11 2012-07-11 1
USGS 01645931 CAPTAIN HICKORY RUN AB TRIB 1 NEAR GREAT FALLS, VA 2012-04-04 2018-06-18 11
USGS 0164593308 CAPTAIN HICKORY TRIB1 AB TRIB NR GREAT FALLS, VA 2012-07-05 2017-10-25 5
USGS 0164593423 CAPTAIN HICKORY TRIB1 TRIB NEAR GREAT FALLS, VA 2012-07-11 2017-10-25 6
USGS 01645936 CAPTAIN HICKORY RUN TRIB1 NEAR GREAT FALLS, VA 2012-04-04 2018-06-18 11
USGS 01645940 CAPTAIN HICKORY RUN AT RT 681 NEAR GREAT FALLS, VA 2008-04-24 2024-02-28 204
USGS 01645950 PINEY RUN AT RESTON, VA 1977-08-29 2017-10-25 10
USGS 0164595661 PINEY RUN AT MOUTH NEAR GREAT FALLS, VA 2011-09-19 2018-06-18 9
USGS 0164595719 CPT HKRY RN TRB AT COLUMBINE ST NR GREAT FALLS, VA 2016-03-08 2017-10-25 3
USGS 0164596042 CAPTAIN HICKORY RUN AT MOUTH AT KENMORE, VA 2011-09-19 2018-06-18 9
USGS 0164599725 ROCKY RUN AT MOUTH NEAR GREAT FALLS, VA 2011-09-19 2017-10-25 8
USGS 01646000 DIFFICULT RUN NEAR GREAT FALLS, VA 1945-04-03 2024-03-07 312
USGS 01646200 SCOTT RUN NEAR MCLEAN, VA 1969-05-04 1977-08-05 2
USGS 01646300 DEAD RUN NEAR MCLEAN, VA 1969-05-06 1969-05-06 1
USGS 01646305 DEAD RUN AT WHANN AVENUE NEAR MCLEAN, VA 2008-04-03 2024-02-28 638
USGS 385252077182501 52V22R 2014-07-14 2014-07-14 3
USGS 385255077182501 52V 22 1994-06-29 1994-06-29 1
USGS 385305077162101 52V 24 2003-07-23 2015-07-13 4
USGS 385311077215001 52V 25 2003-07-24 2015-07-15 8
USGS 385425077165601 53 V 14R 2014-07-22 2014-07-22 3
USGS 385528077232701 51V 14F 1978-10-24 1978-12-20 3
USGS 385743077210501 Sealed Pkng Lots nr Lk Anne in Reston, VA 2007-03-01 2007-03-01 1
USGS 385743077252301 51V 13B 1978-05-10 1978-05-10 1
USGS 385752077201001 Lk Anne Sites ANN & ANB in Reston, VA 1996-06-23 1996-06-23 48
USGS 385753077200501 Lk Anne Site 97 in Reston, VA 1996-06-23 1997-09-24 70
USGS 385756077201801 Lk Anne Site 3 in Reston, VA 2008-06-18 2008-06-18 15
USGS 385930077215901 52V 23 2003-07-22 2015-08-12 8
  group icon Fauquier County, Virginia
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01643643 GOOSE CREEK AT DELAPLANE, VA 1969-05-15 1969-05-15 1
USGS 01643705 CROMWELL RUN NEAR ATOKA, VA 1994-08-24 1994-08-24 1
USGS 385211077513301 48U 25 1999-09-13 1999-09-13 1
USGS 385222077513101 48U 27 2014-08-14 2014-08-14 3
USGS 385528078001901 AT 23093 UNNAMED TRIBUTARY TO GOOSE CREEK VA 2010-04-27 2011-03-16 2
USGS 385534077543401 47V 1 1994-06-22 2014-06-19 4
USGS 385721077595901 AT 23093.5 CROOKED RUN VA 2011-03-16 2011-03-16 1
  group icon Loudoun County, Virginia
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01636690 PINEY RUN NEAR LOVETTSVILLE, VA 1969-05-19 1969-05-19 1
USGS 01638450 RICHARD CREEK NEAR WATERFORD, VA 1994-08-24 1994-08-24 1
USGS 01638480 CATOCTIN CREEK AT TAYLORSTOWN, VA 1968-03-25 1994-09-14 29
USGS 01643585 POTOMAC RIVER TRIB NO 1 NEAR LUCKETTS, VA 1979-08-28 1979-08-28 1
USGS 01643590 LIMESTONE BRANCH NEAR LEESBURG, VA 1969-05-14 1969-05-14 1
USGS 01643600 LIMESTONE BRANCH TRIB NO 1 NEAR LEESBURG, VA 1979-08-28 1979-08-28 1
USGS 01643610 BIG SPRING NEAR LEESBURG, VA 1969-05-14 1969-05-14 1
USGS 01643700 GOOSE CREEK NEAR MIDDLEBURG, VA 1968-11-05 2008-06-09 17
USGS 01643800 NORTH FORK GOOSE CREEK NEAR LINCOLN, VA 1994-08-24 1994-08-24 1
USGS 01643820 BEAVERDAM CREEK NEAR UNISON, VA 1994-08-24 1994-08-24 1
USGS 01643950 GOOSE CREEK AT OATLANDS, VA 1968-04-30 1969-05-14 6
USGS 01643988 LITTLE RIVER NEAR OATLANDS, VA 1968-03-25 1979-08-30 7
USGS 01643990 HOWSERS BRANCH NEAR OATLANDS, VA 1979-08-28 1979-08-28 1
USGS 01644000 GOOSE CREEK NEAR LEESBURG, VA 1930-09-21 2002-02-19 50
USGS 01644255 S F BROAD RUN AT ARCOLA, VA 1968-10-02 1979-08-29 2
USGS 01644277 BEAVERDAM RUN NEAR ASHBURN, VA 1979-08-29 1979-08-29 1
USGS 01644280 BROAD RUN NEAR LEESBURG, VA 1969-05-14 2022-08-15 19
USGS 01644283 POTOMAC RIVER TRIB NO 2 NEAR STERLING, VA 1979-08-29 1979-08-29 1
USGS 380140077350301 50W 82G 1980-06-24 1980-06-24 1
USGS 385635077353901 50V 84D 1980-04-21 1980-04-21 1
USGS 385644077365501 50V 70D 1980-04-21 1980-04-21 1
USGS 385724077303001 50V 91 1994-07-05 1994-07-05 1
USGS 385728077355001 50V 92 1994-07-13 1994-07-13 1
USGS 385814077440501 49V 91 1999-09-14 1999-09-14 1
USGS 385851077390201 49V 90 1994-06-22 2014-07-23 5
USGS 385924077352501 50V 90 1994-07-11 1994-07-11 1
USGS 390002077254601 51W 1H 1977-06-13 1977-06-13 1
USGS 390034077280401 51W 5G 1980-05-28 1980-05-28 1
USGS 390111077222201 52W 13 1994-08-04 1994-08-04 1
USGS 390223077351301 50W 97G 1980-12-02 1980-12-02 1
USGS 390227077352701 50W 96E 1980-12-02 1980-12-02 1
USGS 390230077351601 50W 93D 1980-12-02 1980-12-02 1
USGS 390233077345001 50W 95E 1980-12-02 1980-12-02 1
USGS 390234077351001 50W 92D 1980-12-02 1980-12-02 1
USGS 390236077354201 50W 91D 1980-12-02 1980-12-02 1
USGS 390253077353801 50W 90D 1980-12-02 1980-12-02 1
USGS 390258077294901 51W 24 1994-08-23 1994-08-23 1
USGS 390315077271001 51W 3E 1980-05-28 1980-05-28 1
USGS 390320077335801 50W 56E 1979-10-16 1979-10-16 1
USGS 390333077223001 51W 2F 1977-06-13 1977-06-13 1
USGS 390402077280401 51W 23 1994-07-21 1994-07-21 1
USGS 390437077430601 49W 11 1994-07-13 2014-07-15 4
USGS 390551077342301 50W 13B 1978-05-18 1978-05-18 1
USGS 390711077332501 50W 7B 1999-10-26 1999-10-26 1
USGS 390803077324401 50X 13H 1979-11-06 1979-11-06 1
USGS 390832077430001 49X 10 1999-10-26 1999-10-26 1
USGS 390916077325501 50X 30H 1979-11-08 1979-11-08 1
USGS 390946077461001 48X 19 1994-08-02 2014-07-29 4
USGS 391014077332301 UNNAMED TRIB TO LIMESTONE BRANCH 1979-11-08 1979-11-08 1
USGS 391542077423801 49Y 1 SOW 022 1970-02-02 1972-04-05 3
USGS 391930077375101 49Y 2 1994-07-19 2014-06-30 4
  group icon Prince William County, Virginia
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 384822077315101 50U 84F 1980-06-24 1980-06-24 1