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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 -- 87 sites found


Hydrologic unit = 18060006
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 Monterey County, California
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11143000 BIG SUR R NR BIG SUR CA 1977-08-10 1977-08-10 1
USGS 11143020 LITTLE SUR R NR PT SUR CA 1977-08-10 2015-08-31 2
USGS 11143045 GARRAPATA C BL JOSHUA C NR NOTLEYS LANDING CA 2015-08-31 2015-08-31 1
USGS 11143046 GARRAPATA C A HWY 1 NR NOTLEYS LANDING CA 1977-08-10 1977-08-10 1
USGS 11143250 CARMEL R NR CARMEL CA 1953-10-16 1997-04-17 226
USGS 363131121493301 016S001E23L002M 2005-08-10 2005-08-10 3
USGS 363200121520001 016S001E17L005M 2005-08-10 2005-08-10 3
USGS 363222121550101 016S001W13L002M 1971-08-13 1971-08-13 1
USGS 363223121522201 016S001E17J002M 1971-09-01 1971-09-01 1
  group icon San Luis Obispo County, California
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11141150 ARROYO GRANDE AB PHOENIX C NR ARROYO GRANDE CA 1967-07-28 1990-06-13 53
USGS 11141160 WITTENBERG C NR ARROYO GRANDE CA 1972-01-27 1972-04-20 2
USGS 11141280 LOPEZ C NR ARROYO GRANDE CA 1967-11-18 2017-05-10 66
USGS 11141600 LOS BERROS C NR NIPOMO CA 1977-08-11 1977-08-11 1
USGS 11142200 SANTA ROSA C NR CAMBRIA CA 1988-03-09 1989-02-24 7
USGS 11142240 PERRY C A CAMBRIA CA 1988-03-09 1989-02-24 10
USGS 11142300 SAN SIMEON C NR CAMBRIA CA 1988-03-08 1989-02-23 4
USGS 345823120383901 010N036W02Q001S 1977-07-20 2020-11-18 55
USGS 345823120383902 010N036W02Q002S 1977-07-20 1979-10-10 13
USGS 345823120383903 010N036W02Q003S 1977-07-20 2018-11-14 53
USGS 345823120383904 010N036W02Q004S 1977-07-20 2020-11-18 54
USGS 345823120383907 010N036W02Q007S 1981-10-16 2020-11-18 41
USGS 345832120383001 010N036W02G001S 1961-04-05 1976-09-22 11
USGS 345832120383002 010N036W02G002S 1964-02-06 1964-02-06 1
USGS 345900120570001 011N035W28P002S 2008-07-16 2008-11-18 4
USGS 345921120381601 011N036W35J002S 1977-07-20 2020-11-19 57
USGS 345921120381602 011N036W35J003S 1977-02-02 2020-11-19 54
USGS 345921120381603 011N036W35J004S 1977-04-26 2020-11-19 54
USGS 345921120381604 011N036W35J005S 1977-07-20 2020-11-19 54
USGS 345929120332301 011N035W34E002S 1975-03-25 1975-09-25 2
USGS 345931120331901 011N035W34E001S 1946-07-01 1946-07-01 1
USGS 345932120341101 011N035W33F001S 1941-10-01 1971-09-21 16
USGS 345932120341102 011N035W33F002S 1927-10-12 1927-10-12 1
USGS 345942120341101 011N035W33C001S 1951-05-17 1951-05-17 1
USGS 345945120341301 OSO FLACO C A HWY 1 NR GUADALUPE CA 2008-08-06 2008-08-06 1
USGS 345949120343601 011N035W29R001S 1952-04-25 1952-04-25 1
USGS 345952120324601 011N035W27Q001S 1957-08-29 1957-08-29 1
USGS 345955120334801 011N035W28Q001S 1942-04-15 1942-04-15 2
USGS 350000120320001 011N035W27J001S 2008-08-04 2008-08-04 3
USGS 350001120331101 011N035W27P002S 1975-03-25 1975-03-25 1
USGS 350009120315901 011N035W26K002S 1975-09-27 1975-09-27 1
USGS 350014120311201 011N035W25M001S 1975-03-25 1975-03-25 1
USGS 350029120333401 011N035W27E002S 1975-03-25 1975-03-25 1
USGS 350031120333201 011N035W27E001S 1975-03-25 1975-03-25 1
USGS 350032120292801 011N034W30G001S 1975-03-25 1975-03-25 1
USGS 350059120351501 OSO FLACO C A OSO FLACO LK RD NR GUADALUPE CA 2008-08-06 2008-08-06 1
USGS 350100120290001 011N034W18Q001S 2008-07-15 2008-07-15 3
USGS 350100120320001 011N035W15R001S 2008-07-24 2008-07-24 3
USGS 350107120353201 011N035W20E001S 1941-09-10 1951-05-17 4
USGS 350112120363001 011N035W19E002S 1952-04-25 1975-09-16 18
USGS 350121120351301 UNNAMED TRIB TO OSO FLACO C NR GUADALUPE CA 2008-08-06 2008-08-06 1
USGS 350136120371501 011N036W13R001S 1970-04-09 1977-10-20 11
USGS 350147120294601 011N034W18P002S 1971-03-23 1971-09-20 2
USGS 350154120364601 011N035W18M001S 1970-04-09 1973-10-18 4
USGS 350200120320001 011N035W14E001S 2008-07-07 2018-06-25 7
USGS 350200120350001 011N035W17K001S 2008-07-24 2008-07-24 3
USGS 350400120580001 011N035W17C001S 2008-07-14 2008-07-14 3
USGS 350618120363401 032S013E32D011M 2008-05-19 2008-05-19 3
USGS 350800120360001 032S013E17L001M 2008-05-19 2008-05-19 3
USGS 351100120330001 031S013E35E001M 2008-06-26 2018-06-25 7
USGS 351120120290201 LOPEZ RES A DAM CA 1977-08-23 1977-08-23 23
USGS 351200120380001 031S012E24K001M 2008-07-29 2008-07-29 3
USGS 351436120405201 SAN LUIS OBISPO C A LOS OSOS VLY RD NR SAN LUIS OB 2015-05-20 2017-05-09 34
USGS 351500120410001 031S012E04R001M 2008-05-20 2008-05-20 3
USGS 351725120395901 STENNER C A MURRAY AVE A SAN LUIS OBISPO CA 2017-03-15 2017-05-08 23
USGS 351755120492401 LOS OSOS C A HORSE RANCH 1985-08-06 1985-08-06 1
USGS 351800120500001 030S011E18L010M 2008-05-21 2008-05-21 3
USGS 351919120520202 030S010E14B002M 1985-12-04 1985-12-04 1
USGS 352011120514601 030S010E11A001M 1986-03-05 1986-03-05 1
USGS 352011120514602 030S010E11A002M 1986-03-05 1986-03-05 1
USGS 352127120484501 CHORRO C A CHORRO C RD NR MORRO BAY CA 2017-03-15 2017-05-09 26
USGS 353339121053900 SANTA ROSA C A HWY 1 BR A CAMBRIA CA 1988-03-09 1989-02-24 5
USGS 353351121054501 027S008E27C003M 1988-12-13 1989-02-22 2
USGS 353351121054502 027S008E27C001M 1988-12-13 1989-02-22 2
USGS 353406121061100 SANTA ROSA C A WINDSOR BLVD NR CAMBRIA CA 1988-03-08 1989-02-24 5
USGS 353411121033301 027S008E24L001M 1988-12-13 1989-02-24 2
USGS 353425121010501 027S009E20G002M 1988-12-13 1989-02-23 2
USGS 353430121020101 027S009E19H003M 1988-12-12 1989-02-22 2
USGS 353449121011501 027S009E20BS03M 1989-02-23 1989-02-23 1
USGS 353545121072901 027S008E08R005M 1988-12-13 1989-02-21 2
USGS 353545121072902 027S008E08R003M 1988-12-13 1989-02-21 2
USGS 353546121071401 027S008E09N002M 1988-12-14 1989-02-22 2
USGS 353552121072001 027S008E08R002M 1987-11-06 1987-11-06 1
USGS 353609121070601 027S008E09M004M 1988-12-14 1989-02-23 2
USGS 353614121052001 027S008E10HS01M 1989-02-22 1989-02-22 1
USGS 353624121044201 027S008E11C001M 1988-12-14 1989-02-22 2
USGS 353624121052201 027S008E10A003M 1988-12-14 1989-02-22 2
USGS 353635121043101 SAN SIMEON C A PALMER FLATS NR CAMBRIA CA 1988-03-08 1989-02-23 5