Dissolved arsenic, copper, and lead concentrations in surface water within the Klamath Basin (ver. 2.0, May 2022)

Arsenic (As) toxicity is a global environmental and health problem. There are both natural (eg volcanic activity) and anthropogenic sources of As (eg lead arsenate and copper arsenate were commonly used pesticides in the 1900’s). Aqueous levels of arsenic in the Klamath Basin (CA, OR), which has a volcanic origin, can exceed at some locations both the Oregon Department of Environmental Quality human health water quality criteria (2.1 ug/L) (Sturdevant, 2011) and the US EPA drinking water limit (10 ug/L) (US EPA., 2001). In this study, dissolved concentrations of As, copper (Cu) and lead (Pb) were measured in more than 30 sites within the Klamath Basin between May and October. Results for 2018, 2019, 2020, and 2021 are reported in this data release. References: Sturdevant, Debra., 2011. Water Quality Standards Review and Recommendations: Arsenic (Draft Report). State of Oregon Department of Environmental Quality. https://www.oregon.gov/deq/FilterDocs/AppEArsenicIssuePaper.pdf US EPA., 2001. Drinking Water Standard for Arsenic (Report No. EPA 815-F-00-015). United States Environmental Protection Agency. https://www.epa.gov/dwreginfo/chemical-contaminant-rules

Data e Risorse

Campo Valore
accessLevel public
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identifier USGS:60e883edd34e2a7685d87a76
metadata_type geospatial
modified 20220523
old-spatial -122.1005, 41.9249, -120.9679, 42.9648
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 834e5240a839c37a52d024726f6063f525e7159a
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spatial {"type": "Polygon", "coordinates": [[[-122.1005, 41.9249], [-122.1005, 42.9648], [ -120.9679, 42.9648], [ -120.9679, 41.9249], [-122.1005, 41.9249]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • arsenic
  • ckan
  • copper
  • dissolved-metals
  • environment
  • geo
  • geochemistry
  • geoss
  • health
  • hydrology
  • klamath
  • klamath-county
  • lead
  • mass-spectroscopy
  • national
  • north-america
  • salinity
  • surface-water-non-marine
  • surface-water-quality
  • united-states
  • upper-klamath-lake
  • usgs-60e883edd34e2a7685d87a76
  • water-chemistry
  • water-ph
  • water-sampling
  • water-temperature
isopen False
license_id notspecified
license_title License not specified
maintainer Marie-Noele Croteau
maintainer_email mcroteau@usgs.gov
metadata_created 2025-11-22T14:48:48.205391
metadata_modified 2025-11-22T14:48:48.205395
notes Arsenic (As) toxicity is a global environmental and health problem. There are both natural (eg volcanic activity) and anthropogenic sources of As (eg lead arsenate and copper arsenate were commonly used pesticides in the 1900’s). Aqueous levels of arsenic in the Klamath Basin (CA, OR), which has a volcanic origin, can exceed at some locations both the Oregon Department of Environmental Quality human health water quality criteria (2.1 ug/L) (Sturdevant, 2011) and the US EPA drinking water limit (10 ug/L) (US EPA., 2001). In this study, dissolved concentrations of As, copper (Cu) and lead (Pb) were measured in more than 30 sites within the Klamath Basin between May and October. Results for 2018, 2019, 2020, and 2021 are reported in this data release. References: Sturdevant, Debra., 2011. Water Quality Standards Review and Recommendations: Arsenic (Draft Report). State of Oregon Department of Environmental Quality. https://www.oregon.gov/deq/FilterDocs/AppEArsenicIssuePaper.pdf US EPA., 2001. Drinking Water Standard for Arsenic (Report No. EPA 815-F-00-015). United States Environmental Protection Agency. https://www.epa.gov/dwreginfo/chemical-contaminant-rules
num_resources 2
num_tags 28
title Dissolved arsenic, copper, and lead concentrations in surface water within the Klamath Basin (ver. 2.0, May 2022)