USGS Measurements of Water Quality in San Francisco Bay (CA), 1969-2015

The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. We plan a USGS Data Release to archive and make available all measurements made from 1969 through 2015. Water-quality constituents include salinity, temperature, light attenuation coefficient, and concentrations of chlorophyll-a, dissolved oxygen, suspended particulate matter, nitrate, nitrite, ammonium, silicate and phosphate. Water samples are collected at 37 fixed sampling locations along a 145-km transect from lower South San Francisco Bayo the lower Sacramento River. A map of sampling locations is available on the project website at: https://sfbay.wr.usgs.gov/access/wqdata/overview/wherewhen/stnmap.html

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:5841f97ee4b04fc80e518d9f
metadata_type geospatial
modified 20210824
old-spatial 122.47167, 37.47167, 121.68833, 38.15167
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 1001ca371414b41ac603e0a154e7ce779cc5049a
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[122.47167, 37.47167], [122.47167, 38.15167], [ 121.68833, 38.15167], [ 121.68833, 37.47167], [122.47167, 37.47167]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • chlorophyll-a
  • ckan
  • dissolved-oxygen
  • geo
  • geoss
  • national
  • north-america
  • nutrients
  • salinity
  • temperature
  • turbidity
  • united-states
  • usgs-5841f97ee4b04fc80e518d9f
  • water-quality
isopen False
license_id notspecified
license_title License not specified
maintainer Tara Schraga
maintainer_email tschraga@usgs.gov
metadata_created 2025-11-20T07:40:39.929437
metadata_modified 2025-11-20T07:40:39.929441
notes The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. We plan a USGS Data Release to archive and make available all measurements made from 1969 through 2015. Water-quality constituents include salinity, temperature, light attenuation coefficient, and concentrations of chlorophyll-a, dissolved oxygen, suspended particulate matter, nitrate, nitrite, ammonium, silicate and phosphate. Water samples are collected at 37 fixed sampling locations along a 145-km transect from lower South San Francisco Bayo the lower Sacramento River. A map of sampling locations is available on the project website at: https://sfbay.wr.usgs.gov/access/wqdata/overview/wherewhen/stnmap.html
num_resources 2
num_tags 16
title USGS Measurements of Water Quality in San Francisco Bay (CA), 1969-2015