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Health-Based Screening Levels and their Application to Water-Quality Data

Fact Sheet 2005-3059

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Abstract

To supplement existing Federal drinking-water standards and guidelines, thereby providing a basis for a more comprehensive evaluation of contaminant-occurrence data in a human-health context, USGS began a collaborative project in 1998 with USEPA, the New Jersey Department of Environmental Protection, and the Oregon Health & Science University to calculate non-enforceable health-based screening levels. Screening levels were calculated for contaminants that do not have Maximum Contaminant Level values using a consensus approach that entailed (1) standard USEPA Office of Water methodologies (equations) for establishing Lifetime Health Advisory (LHA) and Risk-Specific Dose (RSD) values for the protection of human health, and (2) existing USEPA human-health toxicity information.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Health-Based Screening Levels and their Application to Water-Quality Data
Series title:
Fact Sheet
Series number:
2005-3059
Edition:
-
Year Published:
2005
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
National Water Quality Assessment Program
Description:
2 p.