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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 -- 67 sites found


Hydrologic unit = 18010206
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 Siskiyou County, California
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11510990 KLAMATH R AB SHOVEL C NR COPCO CA 2000-05-09 2024-03-05 25
USGS 11512000 FALL C A COPCO CA 1999-10-18 1999-10-18 1
USGS 11512500 KLAMATH R BL FALL C NR COPCO CA 1951-04-09 1961-09-11 109
USGS 11516500 JENNY C NR COPCO CA 1976-05-11 1976-05-11 1
USGS 11516528 BOGUS C NR HORNBROOK CA 2015-08-27 2020-03-18 11
USGS 11516530 KLAMATH R BL IRON GATE DAM CA 1961-10-05 2024-03-05 445
USGS 11517800 BEAVER C NR KLAMATH R CA 2015-08-25 2015-08-25 1
USGS 11517818 KLAMATH R A WALKER BR NR KLAMATH RIVER CA 2002-07-10 2003-09-15 5
USGS 11517820 KLAMATH R A KLAMATH R SCH NR HAMBURG CA 1958-12-02 1966-09-12 92
USGS 11520500 KLAMATH R NR SEIAD VALLEY CA 1958-12-02 2024-03-05 564
USGS 414900122390001 046N007W15N001M 2010-10-19 2010-10-19 2
USGS 415300122330001 047N006W29F001M 2010-10-21 2010-10-21 2
USGS 415500122210001 047N004W18E001M 2010-07-12 2010-07-12 3
USGS 415500122270001 047N005W17N001M 2010-10-13 2015-09-01 6
USGS 415552122263101 KLAMATH R BL IRONGATE RES NR COPCO CA 1998-03-17 2000-11-14 58
  group icon Jackson County, Oregon
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11516580 COTTONWOOD CREEK NEAR ASHLAND, OR 2004-09-24 2007-10-25 18
USGS 420030122370100 TRIB TO UN CRK AT CULVERT 350 FT BLW I5 NR HILT CA 2020-05-21 2020-05-21 1
USGS 420031122370400 TRIB TO UN CRK AT CULVERT 550 FT BLW I5 NR HILT CA 2020-05-21 2020-05-21 1
USGS 420108122363000 UN TRB2 TO UN CREEK TO CHOCOLATE FALLS ABV HWY 99 2020-05-21 2020-08-20 2
USGS 420116122355500 UN TRB1 TO UN CREEK TO CHOCOLATE FALLS ABV HWY 99 2020-05-21 2020-08-20 2
USGS 420116122363800 MARSH ABV CHOCOLATE FALLS BLW I5 NR HILT CA 2020-08-20 2020-08-20 1
USGS 420120122364000 UN TRB MARSH TO UN CRK TO CHOC FALLS 800 FT BLW I5 2020-05-21 2020-08-20 2
USGS 420121122363300 UNNAMED CREEK TO CHOCOLATE FALLS 400 FT BLW I5 2020-05-21 2020-08-20 2
USGS 420122122363100 UNNAMED CREEK TO CHOCOLATE FALLS BLW I5 2020-05-21 2020-08-20 2
USGS 420122122363700 UNNAMED CREEK TO CHOCOLATE FALLS 800 FT BLW I5 2020-05-21 2020-08-20 2
USGS 420124122362700 HWY CLVRT RUNOFF TO CHOCOLATE FALLS 200 FT BLW I5 2020-05-21 2020-08-20 2
USGS 420124122362800 UN TRB BLW CNFLNC TO CHOCOLATE FALLS 250 FT BLW I5 2020-05-21 2020-08-20 2
USGS 420124122381100 UN TRIB TO EF COTTONWOOD CR BLW CHOC FALLS CRK 2020-05-21 2020-05-21 1
USGS 420125122354500 UNNAMED CREEK TO CHOCOLATE FALLS ABV HWY 99 2020-05-21 2020-08-20 2
USGS 420126122381000 UN TRIB TO EF COTTONWOOD CR AT BEAR GULCH ABV RR 2020-05-21 2020-05-21 1
USGS 420127122362300 HWY CLVRT RUNOFF TO CHOCOLATE FALLS 100 FT BLW I5 2020-05-21 2020-08-20 2
USGS 420127122381700 EF COTTONWOOD CR AT COLESTIN RD AT BEAR GULCH 2019-09-26 2020-05-21 2
USGS 420212122352501 41.00S/02.00E-04ABC-S 2018-08-01 2020-08-20 3
USGS 420216122360601 41.00S/02.00E-05AAD-S 2020-05-22 2020-08-20 2
USGS 420220122360300 UN TRIB TO EF COTTONWD CR BEAR GULCH BLW I5 2020-05-22 2020-08-20 2
USGS 420220122360600 UN TRIB TO EF COTTONWD CR BEAR GULCH 800 FT BLW I5 2020-05-22 2020-05-22 1
USGS 420223122355700 UN TRIB TO EF COTTONWD CR BEAR GULCH AT I5 2020-05-22 2020-08-20 2
USGS 420225122365701 40.00S/02.00E-32CDC-S 2018-08-01 2018-08-01 1
USGS 420230122360300 UN TRB1 UN TRB TO EF COTTONWD CR BEAR GULCH AT I5 2020-05-22 2020-05-22 1
USGS 420230122360500 UN TRB1 UN TRB TO EF COTTONWD CR BEAR GULCH BLW I5 2020-05-22 2020-05-22 1
USGS 420232122360800 UN TRB2 UN TRB EF CTNWD CR BEAR GLCH CLVRT BLW I5 2020-05-22 2020-05-22 1
USGS 420232122361000 UN TRB2 UN TRB TO EF COTTONWD CR BEAR GULCH BLW I5 2020-05-22 2020-05-22 1
USGS 420232122361001 UN TRB2 UN TRB EF CTNWD CR BEAR GLCH 300 FT BLW I5 2020-05-22 2020-08-20 2
USGS 420234122361000 UN TRB2 UN TRB EF CTNWD CR BEAR GLCH 150 FT BLW I5 2020-05-22 2020-05-22 1
USGS 420239122361500 UN TRB2 UN TRB TO EF COTTONWD CR BEAR GULCH AT I5 2020-05-22 2020-08-20 2
USGS 420248122364100 UNNAMED S TRIB TO EF COTTONWOOD CR 1700 FT BLW I5 2019-09-25 2020-08-17 3
USGS 420252122363800 UNNAMED S TRIB TO EF COTTONWOOD CR 1200 FT BLW I5 2019-09-25 2020-08-17 3
USGS 420253122363700 UNNAMED S TRIB TO EF COTTONWOOD CR 1150 FT BLW I5 2020-05-18 2020-05-18 1
USGS 420254122363600 UNNAMED S TRIB TO EF COTTONWOOD CR 1000 FT BLW I5 2020-05-18 2020-05-18 1
USGS 420256122363400 UNNAMED S TRIB TO EF COTTONWOOD CR 700 FT BLW I5 2020-05-18 2020-05-18 1
USGS 420256122363401 40.00S/02.00E-32ACC-S 2018-08-01 2020-11-10 7
USGS 420306122361800 40.00S/02.00E-32AAC-S 2020-05-22 2020-05-22 1
USGS 420312122390901 40S/01E-36BAB-S 1980-04-17 1980-04-17 1
USGS 420315122364501 40.00S/02.00E-32BAA-S 2018-08-01 2020-11-10 7
USGS 420315122364600 UNNAMED N TRIB TO EF COTTONWOOD CR 620 FT BLW I5 2020-05-18 2020-08-17 2
USGS 420315122364601 UNNAMED N TRIB TO EF COTTONWOOD CR 630 FT BLW I5 2020-05-18 2020-08-17 2
USGS 420315122365100 UNNAMED N TRIB TO EF COTTONWOOD CR 1000 FT BLW I5 2019-09-25 2019-09-25 1
USGS 420315122365300 UNNAMED N TRIB TO EF COTTONWOOD CR 1200 FT BLW I5 2019-09-25 2019-09-25 1
USGS 420316122364700 UNNAMED N TRIB TO EF COTTONWOOD CR 750 FT BLW I5 2020-05-18 2020-05-18 1
USGS 420316122364701 UNNAMED N TRIB TO EF COTTONWOOD CR 680 FT BLW I5 2020-05-18 2020-05-18 1
USGS 420316122364900 UNNAMED N TRIB TO EF COTTONWOOD CR 830 FT BLW I5 2020-05-18 2020-08-17 2
USGS 420704122262901 40S/03E-02CBC-S 1958-03-25 1958-03-25 1
USGS 420708122215901 40S/04E-04CBB1 1969-05-27 1969-05-27 1
  group icon Klamath County, Oregon
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11509500 KLAMATH RIVER AT KENO, OR 1961-12-12 2024-03-06 244
USGS 11510000 SPENCER CREEK NEAR KENO,OREG. 2022-09-15 2022-09-15 1
USGS 11510700 KLAMATH RIVER BLW JOHN C.BOYLE PWRPLNT, NR KENO,OR 1961-09-12 2024-03-06 193
USGS 420805122015600 JOHN C BOYLE RES ABV SPENCER BRIDGE NR KENO, OR 2000-05-09 2000-11-14 13