JD Supra

Water-Quality Benchmarks/Health-Based Screening Levels: U.S. Geological Survey May Update

The United States Geological Survey (“USGS”) updated in May its health-based screening levels (“HBSLs”). USGS describes HBSLs as non-enforceable water-quality benchmarks. USGS states that these ...
Circle of Blue

USGS_NatMap-HH-benchmarks

The U.S. Geological Survey compiled more than 230 aquifer studies for a snapshot of groundwater quality in 62 principal aquifers the United States. The map above shows the percentage of wells in each ...
Acsh.org

On PFAS, US Geological Services Shades the Data

Earlier this month, the headline “New Study Finds PFAS 'Forever Chemicals' in Drinking Water from 45% of Faucets Across US” led many news reports. That's after 32 individual PFAS were tested and found ...
JD Supra

Multidecadal Change in Pesticide Concentrations Relative to Human Health Benchmarks in the Nation's Groundwater: U.S. Geological Survey Report

The United States Geological Survey (“USGS”) issued a report titled: … Multidecadal Change in Pesticide Concentrations Relative to Human Health Benchmarks in the Nation’s Groundwater (“Report”). See ...
EurekAlert!

Contaminants in groundwater used for public supply

More than 20 percent of untreated water samples from 932 public wells across the nation contained at least one contaminant at levels of potential health concern, according to a new study by the U.S.