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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 Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 -- 9 sites found


Hydrologic unit = 18010109
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 Mendocino County, California
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11467553 NF GUALALA R AB SF GUALALA R NR GUALALA CA 2001-03-14 2001-08-30 24
USGS 11467555 NF GUALALA R A MOUTH NR GUALALA CA 1977-08-15 1977-08-15 1
  group icon Sonoma County, California
Agency Site Number Site Name Period of Record
Begin Date End Date Samples
USGS 11460920 SALMON C A BODEGA CA 1970-11-12 1972-05-02 29
USGS 11467230 FORT ROSS C A FORT ROSS CA 1977-08-15 1977-08-15 1
USGS 11467295 SF GUALALA R AB WHEATFIELD FK NR ANNAPOLIS CA 2001-06-27 2001-06-27 3
USGS 11467485 WHEATFIELD FORK GUALALA R AB SF NR ANNAPOLIS CA 2001-03-14 2001-06-27 22
USGS 11467500 SF GUALALA R NR ANNAPOLIS CA 1960-10-10 1966-09-09 64
USGS 382043122581101 006N010W21Q002M 2004-09-22 2004-09-22 3
USGS 382337122570401 006N010W03KS01M 2012-07-16 2022-05-19 4