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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 -- 450 sites found


Hydrologic unit = 02030101
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 Fairfield County, Connecticut
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01374720 TITICUS RIVER NR RIDGEFIELD, CT. 1984-07-31 1984-07-31 1
USGS 01374741 PIERREPONT LK OUTLET NR RIDGEFIELD, CT. 1967-09-21 1968-04-25 2
USGS 01374750 TITICUS R. BELOW LAKE NARAMEKA NR RIDGEFIELD,CT. 1984-07-31 1984-07-31 1
USGS 411713073312001 CT-R 69 1989-08-22 1989-08-22 1
USGS 411733073322701 CT-R 4 1964-11-19 1964-11-19 1
USGS 411803073321100 ROUND POUND PRECP (USWB 7002) NR RIDGEFIELD CT 1965-03-19 1965-12-01 13
USGS 411827073303401 CT-R 52 1968-05-21 1968-05-21 1
USGS 411835073304001 CT-R 64 1984-08-01 1984-08-01 1
USGS 411902073303601 CT-R 63 1984-07-30 1984-07-30 1
USGS 411942073314201 CT-R 60 1984-08-02 1984-08-02 1
USGS 411951073315201 CT-R 65 1984-08-02 1984-08-02 1
USGS 411957073322301 CT-R 62 1984-08-01 1984-08-01 1
USGS 411958073315901 CT-R 61 1984-08-01 1984-08-01 1
USGS 412129073322201 CT-R 66A 1989-08-07 1989-08-07 1
  group icon 000, New Jersey
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 0137627350 Sparkill Brook tributary at Rockleigh NJ 2017-12-20 2019-08-08 8
  group icon Bergen County, New Jersey
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01376273 Sparkill Brook at Piermont Road at Northvale NJ 2007-07-16 2010-09-09 10
USGS 01376274 Sparkill Brook at Link Drive at Northvale NJ 2012-12-11 2014-09-11 9
USGS 404942073581101 Hudson River at Edgewater NJ 2013-07-09 2013-07-09 1
USGS 405135073570401 Hudson River at Englewood Cliffs NJ 2013-09-09 2013-09-09 1
  group icon Bronx County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01302027 HARLEM R AT MILL POND PARK ALCOVE 1 AT BRONX NY 2021-03-10 2021-09-30 57
USGS 404914073555201 Pier 5 near Mill Pond Park, Bronx, NY downspout 2013-11-27 2014-09-25 6
USGS 404914073555202 Pier 5 near Mill Pond Park, Bronx, NY temp well 2013-11-27 2014-10-16 10
USGS 404917073555501 Harlem River at Mill Pond Park, Bronx, NY 2014-01-27 2019-08-20 7
USGS 404921073555401 Harlem River at Mill Pond Park, Bronx, NY alcove 2 2014-10-16 2014-10-16 1
USGS 404921073555402 Mill Pond Park, Bronx, NY storm drain effluent 2014-10-16 2014-10-16 1
USGS 404927073555501 Harlem River at Mill Pond Park, Bronx, NY alcove 1 2014-10-16 2019-03-20 3
USGS 405034073554501 Harlem River at Exterior Street, site 2 2017-07-13 2017-08-03 4
USGS 405043073554101 Harlem River at Exterior Street, site 1 2017-07-24 2017-07-24 1
USGS 405115073551701 Green Roof at Roberto Clemente St Pk, Bronx, NY 2017-09-25 2017-10-30 5
USGS 405118073551301 HARLEM RIVER AT ROBERTO CLEMENTE ST PK COVE SITE 1 2023-09-20 2023-09-20 1
USGS 405119073551402 HARLEM R AT ROBERTO CLEMENTE ST PK DOCK SITE 2 2023-09-20 2023-09-20 1
USGS 405119073551501 Intertidal zone (flume) at RCSP, Bronx, NY 2017-10-09 2017-10-30 2
USGS 405244073532400 B 78 1971-07-12 1973-04-16 10
USGS 405309073541001 B 73. 1 2008-08-26 2008-08-26 1
  group icon Dutchess County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 0137448605 EAST BRANCH CROTON RIVER AT PAWLING NY 1996-08-05 1997-05-28 6
USGS 0137448710 BRADY BROOK AT COUNTY RTE 67 EAST OF PAWLING NY 1996-08-05 1997-05-28 6
USGS 0137448720 BRADY BROOK TRIB @ QUAKER HILL RD NR PAWLING NY 1996-08-05 1997-05-28 4
USGS 01374488 BRADY BROOK NEAR PAWLING NY 2000-07-12 2000-07-12 3
USGS 0137448812 E BR CROTON R TRIB @ HARMONY RD NR PAWLING NY 1996-08-05 1997-05-28 4
USGS 0137449130 MUDDY BROOK TRIB @ SOUTH RD NR PECKSVILLE NY 1996-07-30 1997-05-28 5
USGS 0137462530 UNAMED TRIB @ STORMVILLE MT RD NR PECKSVILLE NY 1996-07-30 1997-05-28 4
USGS 0137463580 LAKE DUTCHESS TRIB AT HOLMES RD NR PECKSVILLE NY 1996-07-30 1997-05-28 4
  group icon Kings County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 404158073565801 K 3133. 1 1971-01-23 2008-08-21 10
USGS 404206073560501 K 1153. 1 1970-08-12 1970-08-12 1
  group icon Nassau County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 404207073345501 N 4756. 2 1956-05-01 1988-02-18 33
USGS 404209073345501 N 4757. 2 1956-05-01 1985-01-07 33
USGS 404306073332901 N 4448. 1 1957-11-01 1988-02-17 46
USGS 404310073331601 N 3457. 1 1952-03-01 1985-04-30 54
USGS 404311073332701 N 4447. 1 1955-02-01 1985-01-04 37
USGS 404330073330001 N 6072. 1 1962-12-10 1962-12-10 1
USGS 404357073331701 N 9084. 1 1976-04-28 1976-04-28 1
USGS 404415073330801 N 9085. 1 1976-04-28 1976-04-28 1
USGS 404415073393601 N 6760. 1 1962-12-03 1968-08-06 3
USGS 404541073333501 N 5655. 1 1956-07-01 1991-03-27 44
USGS 404544073415101 N 3905. 2 1952-10-01 1984-02-21 27
USGS 404555073341101 N 7353. 1 1963-06-01 1979-07-12 27
USGS 404625073405701 N 7053. 1 1967-09-20 1978-10-06 10
USGS 404723073443501 N 8933. 1 1976-05-12 1996-08-06 9
USGS 404732073352401 N 107. 1 1954-10-01 1972-06-07 20
USGS 404828073332801 N 7858. 1 1967-10-04 1978-09-29 9
USGS 404833073414701 N 28. 1 1957-10-01 1984-04-24 28
USGS 404850073344501 N 3475. 1 1952-09-01 1985-04-24 34
USGS 405100073405801 N 4389. 1 1954-11-01 1979-04-25 33
USGS 405154073332701 N 7047. 1 1966-09-08 1985-05-17 16
USGS 405242073351601 N 115. 1 1954-03-01 1969-09-17 8
  group icon New York County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01302025 HARLEM R AT ROBERTO CLEMENTE STATE PARK, BRONX NY 2021-03-10 2021-09-30 33
USGS 01376515 HUDSON RIVER AT PIER 84 AT NEW YORK NY 2021-09-27 2021-09-27 1
USGS 01376520 HUDSON RIVER AT PIER 25 AT NEW YORK NY 2021-09-27 2021-09-27 1
USGS 404236073592201 NY 177. 1 2006-07-14 2006-07-14 1
USGS 404240073592501 NY 190. 1 2006-07-14 2006-07-14 1
USGS 404243073593801 NY 217. 1 2006-07-13 2006-07-13 1
USGS 404245073593301 NY 174. 1 2008-08-05 2008-08-05 1
USGS 404246073593502 NY 238. 1 2006-07-13 2006-07-13 1
USGS 404247073595801 NY 193. 1 2006-07-13 2006-07-13 1
USGS 404300074001001 NY 214. 1 2006-07-13 2006-07-13 1
USGS 404309073595101 NY 215. 1 2006-07-11 2006-07-11 1
USGS 404310073594201 NY 169. 1 2006-07-11 2006-07-11 1
USGS 404312073594401 NY 178. 1 2006-07-11 2006-07-11 1
USGS 404312073595902 NY 244. 1 2006-07-14 2008-08-06 2
USGS 404321073594101 NY 192. 1 2006-07-11 2006-07-11 1
USGS 404341074002501 NY 184. 1 2006-07-10 2006-07-10 1
USGS 404344074002601 NY 248. 1 2006-07-10 2011-08-23 3
USGS 404419073590701 NY 241. 1 2006-07-10 2006-07-10 1
USGS 404419073590801 NY 253. 1 2006-07-10 2011-08-23 3
USGS 404424074002301 NY 249. 1 2006-07-10 2009-07-15 2
USGS 404442073590501 NY 224. 1 2006-07-10 2006-07-10 1
USGS 404452073582502 NY 242. 1 2006-07-13 2006-07-13 1
USGS 404459073594501 NY 227. 1 2006-07-10 2006-07-10 1
USGS 404508074000501 NY 239. 1 2006-07-10 2006-07-10 1
USGS 404521073580401 NY 211. 1 2006-07-12 2006-07-12 1
USGS 404606073583701 NY 252. 1 2006-07-12 2006-07-12 1
USGS 404630073580801 THE LAKE AT THE BOATHOUSE IN CENTRAL PARK, NY, NY 2023-09-20 2023-09-20 1
USGS 404656073575400 NY 71 1970-11-10 1975-05-08 50
USGS 404656073575408 NY 72 1974-05-22 1975-05-08 28
USGS 404727073575101 NY 251. 1 2006-07-12 2011-08-23 3
USGS 404750073571801 NY 250. 1 2006-07-12 2006-07-12 1
USGS 405001073560301 Harlem River nr High Bridge,NY - center channel 2017-08-14 2019-10-23 10
USGS 405032073494301 Harlem River at Exterior Street, site 3 2017-07-13 2019-10-23 18
USGS 405117073551601 HARLEM R AT ROBERTO CLEMENTE ST PK WETLAND SITE 3 2023-09-20 2023-09-20 1
USGS 405118073551501 HARLEM R AT ROBERTO CLEMENTE ST PK WETLAND SITE 1 2023-09-20 2023-09-20 1
USGS 405118073551502 HARLEM R AT ROBERTO CLEMENTE ST PK WETLAND SITE 2 2023-09-20 2023-09-20 1
USGS 405119073551502 Intertidal zone (pool) at RCSP, Bronx, NY 2017-10-09 2017-10-30 2
USGS 405119073551601 Harlem River at Roberto Clemente St Pk, Bronx, NY 2017-10-09 2017-10-30 3
USGS 405129073551501 HARLEM RIVER AT SHERMAN CREEK MUDFLAT SITE 1 2023-09-20 2023-09-20 1
USGS 405129073551502 HARLEM RIVER AT SHERMAN CREEK MUDFLAT SITE 2 2023-09-20 2023-09-20 1
USGS 405129073551503 HARLEM RIVER AT SHERMAN CREEK MUDFLAT SITE 3 2023-09-20 2023-09-20 1
  group icon Orange County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 411610074053001 O1724 1957-06-03 1957-06-03 1
  group icon Putnam County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01374098 ANNSVILLE CREEK AT GRAYMOOR NY 1970-07-14 1970-07-14 1
USGS 01374211 P 64 1975-05-06 1975-05-06 1
USGS 01374260 BARGER BROOK AT SHRUB OAK NY 1976-08-06 1976-08-06 1
USGS 01374490 EAST BRANCH CROTON RIVER AT PATTERSON NY 2001-07-09 2001-07-09 3
USGS 01374491 STEPHENS BROOK NEAR PATTERSON NY 2000-07-12 2000-07-12 1
USGS 0137449210 MUDDY BROOK NEAR PATTERSON NY 2000-07-12 2000-07-12 1
USGS 0137449305 QUAKER BROOK AT MOUTH AT PUTNAM LAKE NY 2000-07-12 2000-07-12 1
USGS 0137449380 HAVILAND HOLLOW BROOK NORTH OF PUTNAM LAKE NY 2000-07-12 2000-07-12 1
USGS 01374494 HAVILAND HOLLOW BROOK NEAR PUTNAM LAKE NY 1970-07-14 1999-07-20 10
USGS 0137449430 PUTNAM LAKE TRIB NORTH AT PUTNAM LAKE NY 1996-08-06 1997-05-27 4
USGS 0137449435 PUTNAM LAKE TRIB EAST AT PUTNAM LAKE NY 1996-08-06 2006-07-18 8
USGS 0137449440 PUTNAM LAKE TRIB WEST AT PUTNAM LAKE NY 1996-08-06 2006-07-18 8
USGS 0137449445 PUTNAM LAKE TRIB SOUTHEAST AT PUTNAM LAKE NY 1996-08-06 1997-05-27 4
USGS 0137449450 PUTNAM LAKE AT DAM, AT PUTNAM LAKE NY 2000-07-31 2007-06-06 18
USGS 0137449480 EAST BRANCH CROTON RIVER NEAR PUTNAM LAKE NY 1996-09-18 2001-07-09 5
USGS 0137449487 UNAMED TRIB @ MILLTOWN RD NR PUTNAM LAKE NY 1996-08-06 1997-05-27 5
USGS 0137449494 PEACH LAKE BROOK AT MOUTH AT BREWSTER NY 2000-07-11 2007-09-20 27
USGS 0137449510 BOG BK RES TRIB AT FOGGINTOWN RD NR BREWSTER NY 1996-08-07 1997-05-27 4
USGS 0137449520 E BR CROTON R TRIB, TONETTA L RD NR BREWSTER NY 1996-08-07 1997-05-27 4
USGS 01374512 TONETTA BK TRIB US OF TONETTA L RD AT BREWSTER NY 2004-05-10 2008-03-17 10
USGS 01374513 TONETTA BK TRIB AT TONETTA L RD AT BREWSTER NY 2003-07-14 2008-03-17 25
USGS 0137452005 TONETTA BROOK AT MOUTH AT BREWSTER NY 2000-07-11 2004-06-22 9
USGS 01374540 HOLLY STREAM NEAR BREWSTER NY 1970-07-14 2000-07-11 2
USGS 01374545 EAST BRANCH CROTON RIVER AT CROTON FALLS NY 1976-08-05 1976-08-05 1
USGS 0137454950 UNNAMED TRIB-HORTONTOWN HILL RD NR KENT CLIFFS NY 1996-07-30 1997-05-27 4
USGS 0137454960 UNAMED TRIB AT STATE RTE 301 NR KENT CLIFFS NY 1996-07-30 1997-05-27 5
USGS 0137454970 W BR CROTON RIVER TRIB NO.3 NR SAGAMORE LAKE NY 2000-07-10 2000-07-10 1
USGS 01374559 WEST BRANCH CROTON RIVER AT RICHARDSVILLE NY 1993-07-01 2016-08-09 25
USGS 01374580 BOYD CORNERS RESERVOIR AT KENTCLIFFS NY 2000-07-10 2000-07-10 1
USGS 01374581 W BR CROTON RIVER BELOW DAM NEAR KENT CLIFFS NY 2013-09-04 2014-08-26 2
USGS 01374596 GYPSY TRAIL CREEK NEAR CARMEL NY 2000-07-10 2000-07-10 3
USGS 01374598 HORSE POUND BROOK NEAR LAKE CARMEL NY 1996-09-17 2000-07-11 4
USGS 01374620 WEST BRANCH RESERVOIR NEAR CARMEL NY 1999-01-26 2007-09-11 38
USGS 0137462010 WEST BRANCH CROTON RIVER NEAR CARMEL NY 2000-07-10 2000-07-10 1
USGS 0137462040 W BR CROTON RIVER TRIB NORTHEAST OF MAHOPAC NY 2000-07-11 2000-07-11 1
USGS 0137464640 UNNAMED TRIB, SOUTH END OF L CARMEL NR CARMEL NY 1996-08-07 1997-05-27 4
USGS 01374654 MIDDLE BRANCH CROTON RIVER NEAR CARMEL NY 1996-09-18 2007-09-20 64
USGS 01374657 MIDDLE BRANCH RESERVOIR TRIBUTARY NEAR CARMEL NY 2000-07-10 2007-09-20 18
USGS 01374670 MICHAEL BROOK AT CARMEL NY 2001-07-10 2001-07-10 2
USGS 01374671 MICHAEL BROOK AT MAPLE ROAD AT CARMEL NY 2003-07-15 2013-01-29 34
USGS 01374674 MICHAEL BROOK NEAR CARMEL NY 2000-07-10 2013-01-29 84
USGS 01374775 NORTH SALEM TRIB TO TITICUS R @ NORTH SALEM NY 2000-07-13 2000-07-13 3
USGS 01374848 LAKE LINCOLNDALE TRIB ABOVE LAKE LINCOLNDALE NY 2000-07-11 2007-06-05 7
USGS 01374910 P 49 1975-04-24 1975-04-24 1
USGS 411940073564401 P2066 2013-07-24 2013-07-24 3
USGS 411954073542000 P 31 1975-01-16 1975-01-16 1
USGS 411959073522901 PEEKSKILL HOLLOW CREEK AT LAKE PEEKSKILL NY 2016-06-22 2016-08-07 17
USGS 412016073524900 P 33 1975-05-06 1975-05-06 1
USGS 412045073455300 P 6 1975-01-16 1975-01-16 1
USGS 412127073462700 P 8 1973-12-10 1973-12-10 1
USGS 412127073462701 P 9 1973-12-10 1973-12-10 1
USGS 412156073441300 P 16 1975-02-05 1975-02-05 1
USGS 412204073441000 P 34 1972-09-19 1972-09-19 1
USGS 412212073350800 P 23 1975-01-16 1975-01-16 1
USGS 412214073445100 P 39 1972-09-19 1972-09-19 1
USGS 412217073443600 P 40 1972-09-19 1972-09-19 1
USGS 412223073434200 P 43 1972-09-19 1972-09-19 1
USGS 412225073471601 P 48 1971-10-19 1971-10-19 1
USGS 412228073433800 P 50 1975-04-24 1975-04-24 1
USGS 412232073472601 P 53 1975-01-16 1975-01-16 1
USGS 412233073450200 P 59 1972-09-19 1972-09-19 1
USGS 412305073512600 P 60 1975-05-06 1975-05-06 1
USGS 412308073454600 P 24 1975-01-16 1975-01-16 1
USGS 412309073510800 P 66 1972-09-19 1975-05-06 2
USGS 412329073444300 P 68 1972-09-19 1972-09-19 1
USGS 412333073443200 P 69 1972-09-19 1972-09-19 1
USGS 412401073375500 P 70 1973-12-10 1973-12-10 1
USGS 412404073422301 AQUEDUCT AT SHAFT 10 ON WEST BRANCH RESERVOIR 1997-06-28 1997-07-02 11
USGS 412405073360400 P 26 1971-10-19 1971-10-19 1
USGS 412410073360105 P1218 2008-09-22 2013-07-30 4
USGS 412450073400940 P1214 2004-07-21 2005-06-21 4
USGS 412450073400960 P1215 2004-07-20 2004-07-21 3
USGS 412451073411700 P 71 1972-09-19 1972-09-19 1
USGS 412455073483001 P2209 2008-08-28 2008-08-28 1
USGS 412455073523301 AT 13074 UNNAMED TRIB TO W BR CANAPUS CREEK NY 2010-11-13 2011-04-07 2
USGS 412504073325800 P 27 1972-09-19 1972-09-19 1
USGS 412622073442600 p 81 1972-09-19 1972-09-19 1
USGS 412644073410400 P 28 1975-01-21 1975-01-21 1
USGS 412757073425800 P 30 1975-01-15 1975-01-15 1
USGS 412757073425801 P 900 1975-01-14 1975-01-14 1
USGS 412812073321101 P1201 1996-12-06 2000-08-23 5
USGS 412812073321102 P1202 1996-12-06 1997-09-10 4
USGS 412812073321103 P1203 1996-12-06 1997-09-10 4
USGS 412812073321104 P1204 1996-12-06 1997-04-04 2
USGS 412839073321701 P1198 1996-12-05 2000-08-23 5
USGS 412839073321702 P1199 1996-12-05 2000-08-29 5
USGS 412839073321703 P1200 1996-12-05 1997-04-03 2
  group icon Queens County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 404254073481301 Q 2137. 1 1970-07-27 1983-09-19 2
USGS 404323073483801 Q 2373. 1 1970-07-27 2010-08-20 3
USGS 404323073483802 Q 2374. 1 1970-07-27 2004-04-13 4
USGS 404338073541201 Q 4117. 1 2021-05-14 2021-05-14 1
USGS 404507073552001 Q 2721. 1 1972-09-28 1975-09-28 2
USGS 404537073545801 Q 3644. 1 1995-08-09 2000-04-20 3
  group icon Richmond County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 403031074141101 R 143. 1 2005-11-03 2005-11-17 10
  group icon Rockland County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01374085 HUDSON RIVER AT BEAR MOUNTAIN NY 1969-04-21 2021-09-27 67
USGS 01374310 HUDSON RIVER AT PEEKSKILL NY 1962-09-01 1970-11-28 33
USGS 01374315 HUDSON RIVER NEAR TOMKINS COVE NY 1966-07-01 1969-06-15 152
USGS 01374420 LAKE TIORATI BROOK AT CEDAR FLATS NY 1959-09-01 1961-08-31 4
USGS 01374432 RO1885 1972-01-10 1972-01-10 1
USGS 01374440 CEDAR POND BK AT STONY POINT NY 1959-09-01 1961-08-31 4
USGS 01374445 RO1883 1972-01-10 1972-01-10 1
USGS 01374480 MINISCEONGO CREEK AT THIELLS NY 1959-09-01 1961-08-31 3
USGS 01376269 HUDSON RIVER AT PIERMONT NY 1969-02-26 2023-10-12 86
USGS 01376280 SPARKILL CREEK AT SPARKILL NY 1959-08-31 1976-10-21 8
USGS 410048073544800 PRECIP TRITIUM SITE, PALISADES, NY 1953-10-01 1955-07-24 76
USGS 410150073553302 RO 287 1957-01-01 1957-07-24 2
USGS 410150073553303 RO 288 1957-01-01 1957-01-01 1
USGS 410226073565401 RO 26 1957-01-01 1957-01-01 1
USGS 410235073564901 RO 150 1957-01-01 1957-01-01 1
USGS 410237073560001 RO 29 1957-01-01 1957-01-01 1
USGS 410241073560401 RO 31 1957-01-01 1957-01-01 1
USGS 410302073564600 SPARKILL CREEK AT ORANGEBURG 1976-09-29 1976-09-29 1
USGS 410304073564600 0137626925-SPARKILL CREEK AT ORANGEBURG NY 1976-06-24 1976-10-21 4
USGS 410522073551001 RO 12 1957-01-01 1957-01-01 1
USGS 410638073552701 RO 27 1957-01-01 1957-01-01 1
USGS 410826074030901 RO 298 1957-01-01 1957-01-01 1
USGS 410930074022502 RO 99 1957-01-01 1957-01-01 1
USGS 410953073550301 HUDSON R APPROX 1500FT FROM REW AT TELLERS PT, NY 1990-08-22 1990-08-23 18
USGS 410957073545101 HUDSON R NR CENTER CHANNEL AT TELLERS POINT, NY 1989-06-07 1990-10-17 28
USGS 411001073543901 HUDSON R APPROX 3500FT FROM REW AT TELLERS PT, NY 1990-08-22 1990-08-23 17
USGS 411016074030501 RO 151 1957-01-01 1957-01-01 1
USGS 411017074030601 RO 545 2006-09-06 2006-09-06 1
USGS 411106074030701 RO 209 1957-07-24 1957-07-24 1
USGS 411116074014801 RO 458 1957-01-01 1957-01-01 1
USGS 411154073590301 RO 10 1957-01-01 1957-01-01 1
USGS 411212074005501 RO 1 1957-01-01 1957-07-24 2
USGS 411217073565001 HUDSON R NR CENTER CHANNEL AT BOWLINE POINT NY 1988-07-25 1990-10-17 34
USGS 411259074032601 RO1884 1972-01-10 1972-01-10 1
USGS 411300073591601 RO 16 1957-01-01 1957-01-01 1
USGS 411310074010301 RO 147 1957-01-01 1957-01-01 1
USGS 411342073590101 RO 468 1957-01-01 1957-01-01 1
USGS 411357074000201 RO1886 1972-01-10 1972-01-10 1
USGS 411358074002101 RO 274 1957-07-24 1957-07-24 1
USGS 411405074003201 RO 168 1957-01-01 1957-01-01 1
USGS 411430074011801 RO 171 1957-01-01 1957-01-01 1
USGS 411448074000201 RO 188 1957-01-01 1957-01-01 1
USGS 411523073585601 RO 310 1957-01-01 1957-01-01 1
USGS 411536073592601 RO 300 1957-01-01 1957-01-01 1
USGS 411552073583001 HUDSON R APPROX. 500 FT FROM REW NR VERPLANCK NY 1989-06-13 1990-05-10 43
USGS 411608074000401 RO 335 1957-01-01 1957-01-01 1
USGS 411718073570301 HUDSON R NR CENTER CHANNEL AT JONES POINT NY 1988-07-06 1990-10-17 39
USGS 411745073595001 RO 318 1957-01-01 1957-01-01 1
USGS 411748073595501 RO 319 1957-01-01 1957-01-01 1
USGS 411813073591401 RO 317 1957-01-01 1957-01-01 1
USGS 411911073590001 HUDSON R NR CENTER CHANNEL AT BEAR MT BRIDGE NY 1988-07-25 1989-09-19 15
  group icon Westchester County, New York
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 01374099 ANNSVILLE C ABOVE WALLACE POND AT PEEKSKILL NY 1976-08-05 1976-08-05 1
USGS 01374200 SPROUT BROOK NEAR ANNSVILLE NY 1976-08-05 1976-08-05 1
USGS 01374268 SHRUB OAK BROOK AT SHRUB OAK NY 1976-08-06 1976-08-06 1
USGS 01374290 PEEKSKILL HOLLOW CREEK NEAR PEEKSKILL NY 1976-06-28 1976-08-05 2
USGS 01374300 PEEKSKILL HOLLOW CR AT VAN CORTLANDTVILLE NY 1976-08-05 1994-09-15 9
USGS 01374350 HUDSON RIVER AT VERPLANCK NY 1969-04-21 1975-05-14 72
USGS 01374390 FURNACE BROOK NEAR PEEKSKILL NY 1976-08-04 1976-09-01 2
USGS 01374398 FURNACE BROOK NEAR CROTON-ON-HUDSON NY 1976-08-04 1976-09-01 2
USGS 01374705 WEST BRANCH CROTON RIVER AT CROTON FALLS NY 1976-08-05 1976-08-05 1
USGS 0137470990 TITICUS R TRIB WEST OF POUND ST AT RIDGEFIELD CT 1996-08-20 1997-05-15 4
USGS 01374770 TITICUS RIVER NR NORTH SALEM, N.Y. 1984-07-31 1984-07-31 1
USGS 01374780 TITICUS RIVER AT SALEM CENTER NY 1976-06-28 2000-07-13 5
USGS 01374783 CROOK BROOK NR GRANT CORNER NY 1996-08-20 1997-05-15 4
USGS 01374785 CROOK BROOK TRIBUTARY AT GRANT CORNER NY 1996-08-20 1997-05-15 4
USGS 01374788 CROOK BROOK AT SALEM CENTER NY 1976-08-05 2000-07-12 2
USGS 01374790 TITICUS RES TRIB NR CAT RDGE RD @ SALEM CENTER NY 1996-11-01 1997-05-15 3
USGS 01374821 TITICUS RIVER AT PURDYS STATION NY 2000-07-12 2000-07-12 1
USGS 01374830 CROTON RIVER TRIBUTARY AT GOLDENS BRIDGE NY 1976-08-04 1976-08-04 1
USGS 01374840 MUSCOOT RESERVOIR TRIBUTARY AT SOMERS NY 1976-08-05 1976-08-05 1
USGS 01374849 LAKE LINCOLNDALE INLET AT LAKE LINCOLNDALE NY 1996-08-07 1999-07-20 6
USGS 01374853 PLUM BK TRIB @ E LOVELL ST @ LAKE LINCOLNDALE NY 1996-08-07 1997-05-15 4
USGS 01374860 PLUM BROOK AT LINCOLNDALE NY 1964-11-19 2007-06-05 13
USGS 01374880 WACCABUC RIVER AT BOUTONVILLE NY 1976-07-07 1976-08-04 2
USGS 01374889 CROSS R TRIB AT BOUTONVILLE RD AT CROSS RIVER NY 1996-08-20 1997-05-14 4
USGS 01374890 CROSS RIVER NEAR CROSS RIVER NY 1976-06-28 2016-08-04 43
USGS 01374893 UNNAMED TRIB AT WILDCAT HOLLOW NR CROSS RIVER NY 1996-08-20 1997-05-14 4
USGS 0137490520 UNNAMED TRIB N OF BLUE HERON L, POUND RIDGE NY 1996-08-20 1999-07-20 5
USGS 01374908 STONE HILL RIVER AT BEDFORD NY 1976-07-07 2001-07-10 4
USGS 01374911 STONE HILL RIVER AT BEDFORD CENTER, NY 2001-07-10 2002-07-17 4
USGS 0137491106 DAVIDS BROOK WEST OF BEDFORD NY 2002-06-19 2007-05-31 15
USGS 0137491112 DAVIDS BROOK, EAST TRIBUTARY, AT BEDFORD NY 2002-06-19 2007-09-06 19
USGS 0137491115 DAVIDS BK, NORTH TRIB, NARROWS RD @ BEDFORD CTR NY 2003-07-07 2007-09-06 19
USGS 0137491117 DAVIDS BROOK, NORTH TRIB, AT BEDFORD CENTER NY 2002-06-19 2007-09-06 24
USGS 0137491120 DAVIDS BROOK AT BEDFORD CENTER NY 2001-07-10 2007-09-06 44
USGS 0137491450 UNNAMED TRIB @ CRESCENT TERRACE, BEDFORD HILLS NY 1996-08-19 1997-05-14 4
USGS 01374916 STONE HILL RIVER NEAR BEDFORD HILLS NY 2000-07-12 2007-09-06 28
USGS 01374917 BROAD BROOK AT KATONAH NY 1976-08-05 2007-09-06 23
USGS 01374918 STONE HILL RIVER SOUTH OF KATONAH NY 2001-03-22 2007-05-31 166
USGS 01374919 STONE HILL RIVER AT KATONAH NY 1976-07-06 1976-08-05 2
USGS 01374920 STONE HILL RIVER TRIBUTARY AT LAKE MARIE, NY 2001-07-11 2001-07-11 3
USGS 0137492010 STONE HILL RIVER TRIBUTARY BELOW LAKE MARIE, NY 2001-07-11 2002-09-15 9
USGS 01374921 STONE HILL RIVER TRIBUTARY AT BEDFORD HILLS NY 2000-08-01 2008-02-25 536
USGS 01374930 MUSCOOT RIVER AT BALDWIN PLACE NY 1976-06-28 2016-08-08 41
USGS 01374936 LK SHENOROCK INLET @ HILLANDALE LN, SHENOROCK NY 1996-08-08 1997-05-15 4
USGS 01374937 LAKE SHENOROCK OUTLET AT SHENOROCK NY 1976-08-04 2006-09-26 9
USGS 01374941 MUSCOOT RIVER BELOW DAM AT AMAWALK NY 2000-07-10 2007-06-05 7
USGS 0137494160 UNNAMED TRIB AT FLANDERS DR, JEFFERSON VALLEY NY 1996-08-08 1997-05-15 4
USGS 01374942 MUSCOOT RIVER AT AMAWALK NY 1976-07-06 1976-07-21 15
USGS 0137494610 UNNAMED TRIB AT CROMPOND RD @ YORKTOWN NY 1996-08-08 1997-05-14 4
USGS 01374948 CROM POND OUTLET AT YORKTOWN HEIGHTS NY 1976-08-04 1976-09-01 2
USGS 01374960 HALLOCKS MILL BROOK AT YORKTOWN HEIGHTS NY 1976-07-06 2016-08-08 77
USGS 01374963 HALLOCKS MILL BROOK AT AMAWALK NY 1976-07-19 2013-01-30 82
USGS 01374965 HALLOCKS MILL BROOK BELOW AMAWALK NY 1976-07-06 1976-07-20 3
USGS 01374970 MUSCOOT RIVER NEAR AMAWALK NY 1976-07-06 2002-09-04 16
USGS 01374976 ANGLE FLY BROOK AT WHITEHALL CORNERS NY 1976-08-04 2005-07-11 5
USGS 0137497652 ANGLE FLY BK TRIB .5MI N OF WHITEHALL CORNERS NY 1996-08-19 1997-05-15 4
USGS 0137498290 KISCO R TRIB AT ROUTE 117 NR MOUNT KISCO NY 1996-08-19 1997-05-14 4
USGS 01374983 KISKO RIVER AT LEXINGTON AVE AT MOUNT KISCO NY 1976-07-07 1976-08-04 2
USGS 0137498340 KISCO R TRIB EAST OF CHAPPAQUA BK, NR MT KISCO NY 2000-07-12 2008-02-25 300
USGS 01374984 KISCO RIVER SOUTH OF MOUNT KISCO, NY 2001-07-12 2007-06-04 25
USGS 0137498420 BRANCH BROOK AT MOUNT KISCO, NY 2001-07-12 2008-02-25 173
USGS 01374985 KISCO RIVER AT MOUNT KISCO NY 1993-06-09 2001-07-12 5
USGS 01374986 KISCO R AT BRDG ON CROSS RIVER RD NR MT KISCO NY 2001-07-12 2001-07-12 3
USGS 01374987 KISCO RIVER BELOW MOUNT KISCO NY 1976-07-07 2008-02-25 656
USGS 01374988 GEDNEY BROOK NEAR MOUNT KISCO NY 1976-08-04 2007-06-05 6
USGS 0137498830 NEW CROTON RES TRIB-PINES BRG RD, CROTON HGTS NY 1996-08-19 1997-05-14 4
USGS 0137498902 EAST TRIB TO CORNELL BROOK NEAR MILLWOOD NY 2000-07-11 2007-06-05 5
USGS 0137498904 CORNELL BROOK NEAR MILLWOOD NY 2000-07-11 2000-07-11 3
USGS 0137498960 LOCKE LEDGE TRIB NO. 5 NEAR SOMERS NY 2000-07-11 2000-07-11 3
USGS 01374991 HUNTER BROOK NORTH OF YORKTOWN, NY 2001-07-10 2005-07-12 4
USGS 01374992 HUNTER BROOK NEAR YORKTOWN NY 1976-08-04 2007-06-05 19
USGS 01374993 HUNTER BROOK BELOW MILL POND NEAR YORKTOWN NY 1976-07-06 1976-09-01 3
USGS 0137499350 HUNTER BROOK SOUTH OF YORKTOWN NY 2005-07-11 2006-09-26 6
USGS 01374995 NEW CROTON RESERVOIR NEAR CROTON-ON-HUDSON NY 1999-01-26 2013-01-10 128
USGS 01375000 CROTON R AT NEW CROTON DAM NR CROTON-ON-HUDSON NY 1970-10-06 2001-07-10 9
USGS 01375520 WE 61 1971-12-06 1971-12-06 1
USGS 01376090 WE 56 1971-12-13 1971-12-13 1
USGS 01376140 WE 51 1971-12-06 1971-12-06 1
USGS 01376150 HUDSON RIVER AT TARRYTOWN NY 1961-09-15 1962-09-13 48
USGS 01376304 HUDSON RIVER SOUTH OF HASTINGS-ON-HUDSON, NY 1992-08-25 1995-03-14 45
USGS 01376307 HUDSON RIVER AT WATER GRANT STREET AT YONKERS NY 2021-08-25 2023-10-12 16
USGS 01376308 SAW MILL R NORTHWEST OF CHAPPAQUA NY 1981-11-17 1981-11-17 2
USGS 01376310 SAW MILL RIVER AT CHAPPAQUA NY 1981-05-12 1981-09-02 10
USGS 01376313 TERCIA BROOK AT CHAPPAQUA NY 1981-08-12 1981-08-12 2
USGS 01376320 SAW MILL RIVER AT PLEASANTVILLE NY 1981-02-10 1982-08-24 14
USGS 01376330 SAW MILL RIVER AT THORNWOOD NY 1981-08-11 1981-08-11 2
USGS 01376370 NANNY HAGEN BROOK AT THORNWOOD NY 1981-08-11 1981-08-11 2
USGS 01376390 SAW MILL RIVER AT HAWTHORNE NY 1981-05-10 1981-09-02 2
USGS 01376410 SAW MILL RIVER AT EASTVIEW NY 1981-05-11 1982-08-24 4
USGS 01376415 SAW MILL RIVER NEAR ELMSFORD NY 1981-08-11 1981-08-11 2
USGS 01376417 MINE BROOK AT ELMSFORD NY 1981-08-11 1981-08-11 2
USGS 01376420 SAW MILL RIVER AT ELMSFORD NY 1981-05-11 1982-08-24 6
USGS 01376440 SAW MILL RIVER AT WORTHINGTON NY 1981-05-11 1981-09-01 5
USGS 01376443 SAW MILL RIVER AT WOODLANDS NY 1981-09-01 1982-08-24 2
USGS 01376450 SAW MILL RIVER AT MOUNT HOPE NY 1981-05-11 1982-08-24 9
USGS 01376452 SAW MILL RIVER AT FARRAGUT AVE AT MOUNT HOPE NY 1994-03-10 1995-03-15 19
USGS 01376460 SAW MILL RIVER AT GREY OAKS AT YONKERS NY 1981-02-10 1982-08-24 14
USGS 01376470 SAW MILL RIVER AT OLD NEPPERHAN RD AT YONKERS NY 1981-08-12 1982-08-25 4
USGS 01376475 SAW MILL RIVER AT WORTH ST AT YONKERS NY 1981-05-11 1981-08-12 3
USGS 01376485 WE 45 1971-12-09 1971-12-09 1
USGS 01376495 SAW MILL R BELOW ASHBURTON AVE AT YONKERS NY 1981-05-11 1982-08-24 13
USGS 01376500 SAW MILL RIVER AT YONKERS NY 1963-06-26 2016-08-07 76
USGS 01376501 SAW MILL RIVER NEAR WALSH RD AT YONKERS NY 1981-08-12 1981-08-12 2
USGS 01376503 SAW MILL RIVER AT ELM ST AT YONKERS NY 1981-02-10 1982-08-24 15
USGS 01376510 HUDSON RIVER AT YONKERS NY 1969-04-28 1975-05-14 73
USGS 405443073524700 WE 43 1971-07-12 1973-04-16 6
USGS 405741073522001 WE 46 1971-12-09 1971-12-09 1
USGS 405758073522000 SAW MILL RIVER AT O DELL AVE ABOVE YONKERS NY 1976-08-31 1976-08-31 1
USGS 410204073510500 WE 49 1971-12-09 1971-12-09 1
USGS 410318073491600 SAW MILL RIVER AT TARRYTOWN RD AT ELMSFORD NY 1976-08-31 1976-08-31 1
USGS 410348073490300 SAW MILL R AT BEAVER HILL RD ABOVE ELMSFORD NY 1976-08-31 1976-08-31 1
USGS 410457073495501 WE 52 1971-12-06 1971-12-06 1
USGS 410457073495502 WE3994 1973-02-08 1973-02-08 1
USGS 410555073493900 WE 54 1972-06-05 1972-06-05 1
USGS 410650073500901 WE 57 1971-12-13 1971-12-13 1
USGS 410755073461700 WE 33 1971-12-06 1971-12-06 1
USGS 410822073490000 WE 34 1971-12-06 1971-12-06 1
USGS 410833073465900 WE 35 1971-12-13 1971-12-13 1
USGS 410833073465901 WE 567 1971-12-13 1971-12-13 1
USGS 410958073433201 WE3866 1986-10-16 1987-05-05 2
USGS 411012073540201 HUDSON RIVER NR LEW AT TELLERS POINT, NY 1990-08-22 1990-08-23 12
USGS 411035073480600 WE 60 1972-06-05 1972-06-05 1
USGS 411116073422301 WE4424 1986-10-16 1987-05-06 2
USGS 411126073515501 WE 62 1971-12-06 1971-12-06 1
USGS 411144073440900 WE 36 1971-12-08 1971-12-08 1
USGS 411156073385700 WE 37 1972-06-05 1972-06-05 1
USGS 411218073434700 KISCO RIVER TRIB AT GREEN ST AT MOUNT KISCO NY 1976-08-04 1976-11-16 2
USGS 411222073363201 WE5018 1986-10-16 1987-05-06 2
USGS 411230073531600 WE 38 1971-12-06 1971-12-06 1
USGS 411230073531601 WE 63 1971-12-09 1971-12-09 1
USGS 411240073493801 WE2096 1988-08-22 1988-08-22 1
USGS 411301073515401 WE 511 1999-08-04 2000-06-27 2
USGS 411305073515502 WE1482 2008-10-01 2008-10-01 1
USGS 411308073410001 WE5015 1986-10-16 1987-05-05 2
USGS 411310073494901 WE2097 1988-08-22 1988-08-22 1
USGS 411317073435601 WE5011 1986-10-16 1987-05-05 2
USGS 411336073515501 WE2098 1988-08-22 1988-08-22 1
USGS 411349073393701 WE5016 1986-10-16 1987-05-05 2
USGS 411401073481300 WE 65 1970-12-07 1971-02-01 2
USGS 411401073481400 WE 66 1970-12-14 1970-12-14 1
USGS 411405073370001 WE5017 1986-10-16 1987-05-05 2
USGS 411410073420301 WE5014 2013-07-30 2018-10-10 6
USGS 411411073461901 WE2095 1988-08-22 1988-08-22 1
USGS 411429073414800 WE 39 1971-12-08 1974-03-05 2
USGS 411433073434901 WE5012 1986-10-16 1987-05-05 2
USGS 411436073325000 LAKE KITCHAWAN AT LAKE KITCHAWAN 1976-07-06 1976-11-17 55
USGS 411458073492901 WE2094 1988-08-22 1988-08-22 1
USGS 411522073484401 WE2113 1988-08-24 1988-08-24 1
USGS 411532073364801 WE3854 1986-10-17 1987-05-05 2
USGS 411539073503201 WE2106 1988-08-24 1988-08-24 1
USGS 411542073323601 WE3858 1986-10-17 1987-05-05 2
USGS 411542073575401 HUDSON R APPROX. 3500 FT FROM REW NR VERPLANCK NY 1990-05-09 1990-05-10 18
USGS 411542073575801 HUDSON R APPROX. 3100 FT FROM REW NR VERPLANCK NY 1989-06-13 1990-05-10 24
USGS 411544073370301 WE3855 1986-10-17 1986-10-17 1
USGS 411545073580601 HUDSON R APPROX. 2300 FT FROM REW NR VERPLANCK NY 1989-06-13 1990-05-10 42
USGS 411546073502501 WE2107 1988-08-24 1988-08-24 1
USGS 411600073512201 WE2108 1988-08-24 1988-08-24 1
USGS 411613073572001 INDIAN POINT POWER PLANT 1989-10-26 1990-09-28 45
USGS 411618073395401 WE5010 1986-10-15 1987-05-04 2
USGS 411627073325701 WE3857 1986-10-17 1987-05-05 2
USGS 411629073423901 WE3873 1986-10-15 1987-05-06 2
USGS 411632073332101 WE 201 2018-10-10 2018-10-10 3
USGS 411643073500101 WE1132 1988-08-25 1988-08-25 1
USGS 411651073342101 WE3856 1986-10-17 1987-05-05 2
USGS 411700073452001 WE1480 2009-11-12 2009-11-12 2
USGS 411707073420901 WE6369 2008-08-14 2008-08-14 1
USGS 411707073500900 MILL POND TRIB OFF HUNTER BROOK RD AT YORKTOWN 1976-08-05 1976-08-05 1
USGS 411713073391700 LAKE KATONAH AT LAKE KATONAH NY 1976-07-01 1976-10-21 37
USGS 411729073562401 ANNSVILLE CREEK AT MOUTH AT PEEKSKILL, NY 2022-08-03 2023-10-12 10
USGS 411736073400301 WE3853 1986-10-15 1987-05-04 2
USGS 411759073530400 WE 67 1972-06-05 1972-06-05 1
USGS 411810073542300 WE 68 1971-12-06 1971-12-13 2
USGS 411810073542301 WE 69 1971-12-06 1971-12-06 1
USGS 411832073454201 WE3872 1986-10-15 1987-05-04 2
USGS 411839073393301 WE3860 1986-10-15 1987-05-04 2
USGS 411849073555801 WE2109 1988-08-24 1988-08-24 1
USGS 411900073370101 WE3863 1986-10-17 1987-05-06 2
USGS 411905073510200 LAKE MOHEGAN AT MOHEGAN LAKE NY 1976-06-30 1976-10-20 63
USGS 411908073560601 WE2111 1988-08-24 1988-08-24 1
USGS 411913073561801 WE2110 1988-08-24 1988-08-24 1
USGS 411915073400701 WE3870 1986-10-15 1987-05-05 2
USGS 411917073431200 WE 40 1974-03-05 1974-03-05 1
USGS 411935073340801 WE3861 1986-10-17 1987-05-06 2
USGS 411935073555501 WE2112 1988-08-24 1988-08-24 1
USGS 411942073411201 WE3871 1986-10-15 1987-05-05 2
USGS 411946073443001 WE3867 1986-10-15 1987-05-05 2
USGS 411947073415301 WE3868 1986-10-15 1987-05-04 2
USGS 411947073442800 WE 41 1971-12-08 1971-12-08 1
USGS 411947073442801 WE1460 1971-12-08 1971-12-08 1
USGS 411958073493600 WE 70 1971-12-08 1971-12-08 1
USGS 412012073334701 WE3862 1986-10-17 1987-05-06 2
USGS 412024073434000 LAKE LINCOLNDALE AT LINCOLNDALE NY 1976-06-29 1976-10-21 50
USGS 412025073344401 WE3865 1986-10-17 1987-05-06 2
USGS 412037073400001 WE3869 1986-10-15 1987-05-04 2
USGS 412125073331801 WE3864 1986-10-17 1987-05-06 2
USGS 412148073332100 WE 42 1974-03-05 1974-03-05 1
USGS 412152073345400 PEACH LAKE(00) AT PEACH LAKE NY 1976-07-07 1976-11-17 81
USGS 412152073345401 PEACH LAKE(01) AT PEACH LAKE NY 1976-07-07 1976-07-07 1