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This dataset includes shallow surface sediment (top 0–2 cm interval) constituent concentration data (primarily) and microbial methylmercury production potential rate data (limited) collected from the Cache Creek Settling Basin (CCSB), Yolo County, California, between April 2010 and July 2017. The dataset includes up to 706 observations (including field replicates) per sediment parameter, reflecting 93 unique sampling locations, with each location having been sampled from 1 to 28 times (excluding field replicates) over this 8-year period. There were four spatially intensive field campaigns conducted (February–March 2013, May 2013, October–November 2014, and January–March 2015), during which at least 90 sites were...
Categories: Data;
Tags: Cache Creek Settling Basin,
Sacramento River Watershed,
Sacramento–San Joaquin River Delta,
Total Maximum Daily Load (TMDL),
Woodland, CA, All tags...
Yolo Bypass,
Yolo County,
aquatic ecosystems,
basins,
biogeochemistry,
floodplains,
mercury,
methylmercury,
watershed management,
wetlands, Fewer tags
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This data-release component documents chemical analyses of soil samples collected by the U.S. Geological Survey (USGS) in Lakeport (Lake County, California) on July 12, 2022. Environmental samples were collected at selected sites in Lakeport to assess the effects of lead-based paint on soil chemistry. This sampling was made as part of a broader study to attribute sources of lead in soils in cooperation with the California Department of Toxic Substances Control (DTSC) for their Lead-Acid Battery Recycling Facility Investigation and Cleanup (LABRIC) program. A total of five soil samples plus one replicate across four properties were collected proximal to selected structures suspected to have legacy coatings of lead-based...
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This dataset includes shallow surface sediment (top 0–2 cm interval) constituent concentration data (primarily) and microbial methylmercury production potential rate data (limited) collected from the Cache Creek Settling Basin (CCSB), Yolo County, California, between April 2010 and November 2019. The dataset includes up to 723 observations (including field replicates) per sediment parameter, reflecting 93 unique sampling locations, with each location having been sampled from 1 to 29 times (excluding field replicates) over this 10-year period. There were four spatially intensive field campaigns conducted (February–March 2013, May 2013, October–November 2014, and January–March 2015), during which at least 90 sites...
Categories: Data;
Tags: Cache Creek Settling Basin,
Sacramento River Watershed,
Sacramento–San Joaquin River Delta,
Total Maximum Daily Load (TMDL),
Woodland, CA, All tags...
Yolo Bypass,
Yolo County,
aquatic ecosystems,
basins,
biogeochemistry,
floodplains,
mercury,
methylmercury,
watershed management,
wetlands, Fewer tags
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This data -release component documents field portable X-ray fluorescence (pXRF) measurements of lead and associated quality-control data for 19 samples of paint chips collected from structures suspected to have legacy coatings of lead-based paint in Lakeport (Lake County, California) during July 11-12, 2022. Environmental samples were collected at selected sites to assess the effects of lead-based paint on soil chemistry. This sampling was made as part of a broader study to attribute sources of lead in soils in cooperation with the California Department of Toxic Substances Control (DTSC) for their Lead-Acid Battery Recycling Facility Investigation and Cleanup (LABRIC) program. Lead concentrations for paint chips...
Tags: California,
Lake County,
Lakeport,
Paint,
environment, All tags...
geoscientificInformation,
health,
lead,
soil chemistry,
x-ray fluorescence, Fewer tags
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