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428 datasets

Surface Water - Toxicity Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, April 14, 2026
File types: PDF, CSV, ZIP

Surface water toxicity data from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN). CEDEN is the Californ...

Water Quality - Effluent - Electronic Self-Monitoring Report (eSMR) Data

Published by: California State Water Resources Control Board
Last updated: Thursday, April 2, 2026
File types: PDF, ZIP, CSV

Wastewater discharges are regulated by the Water Board. Those regulated are generally required to submit Self-Monitoring Reports to the State or Regio...

Salmonid Population Monitoring Areas - California - CMP [ds3001] Extended Table

Published by: California Department of Fish and Wildlife
Last updated: Sunday, April 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California Monitoring Plan (CMP) salmonid monitoring areas and associated population data are part of an ongoing effort to summarize existing and ...

Salmonid Population Monitoring Areas - California - CMP [ds3001] Extended Table

Published by: California Department of Fish and Wildlife
Last updated: Sunday, April 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, GEOJSON

The California Monitoring Plan (CMP) salmonid monitoring areas and associated population data are part of an ongoing effort to summarize existing and ...

Ocean Acidification, Hypoxia (West Coast) and Biological (California) Monitoring Locations

Published by: California Ocean Protection Council
Last updated: Friday, April 17, 2026
File types: CSV, GEOJSON

Ocean Acidification and Hypoxia (OAH) and ecosystem monitoring project locations compiled by Ocean Protection Council staff....

California Least Tern Monitoring Sites by Region - CDFW [ds3147]

Published by: California Department of Fish and Wildlife
Last updated: Sunday, April 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, ZIP, CSV, GEOJSON, KML

California least tern colonies are monitored during nesting season along the California Coast and data is reported to California Department of Fish an...

Meadowfoam Monitoring Plan - North Table Mountain Ecological Reserve, Butte County

Published by: California Department of Fish and Wildlife
Last updated: Sunday, April 19, 2026
File types: XLSX, ZIP

Butte County meadowfoam (Limnanthes floccosa ssp. californica) is an annual plant that is designated as endangered under the California Endangered Spe...

Beach Advisories (Postings and Closures) and Beach Water Quality Monitoring

Published by: California State Water Resources Control Board
Last updated: Tuesday, March 17, 2026
File types: PDF, CSV, ZIP

One of California's biggest industries is tourism, and beaches are a significant tourist attraction as well as being an integral part of California’s ...

California Least Tern Monitoring Sites by Region CDFW ds3147

Published by: California Department of Fish and Wildlife
Last updated: Sunday, April 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

California least tern colonies are monitored during nesting season along the California Coast and data is reported to California Department of Fish an...

California Least Tern Monitoring Sites by Region - CDFW [ds3147]

Published by: California Department of Fish and Wildlife
Last updated: Sunday, April 19, 2026
File types: HTML, ARCGIS GEOSERVICES REST API

California least tern colonies are monitored during nesting season along the California Coast and data is reported to California Department of Fish an...