Design of the National Water-Quality Assessment Program; occurrence and distribution of water-quality conditions

Circular 1112
By: , and 

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Abstract

The National Water-Quality Assessment Program assesses the status of and trends in the quality of the Nation's ground- and surface-water resources. The occurrence and distribution assessment component characterizes broad-scale water-quality conditions in relation to major contaminant sources and background conditions in each study area. The surface-water design focuses on streams. The ground-water design focuses on major aquifers, with emphasis on recently recharged ground water associated with human activities.

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Design of the National Water-Quality Assessment Program; occurrence and distribution of water-quality conditions
Series title Circular
Series number 1112
DOI 10.3133/cir1112
Edition -
Year Published 1995
Language ENGLISH
Publisher U.S. Geological Survey ; U.S.G.S. Information Services [distributor],
Description vi, 33 p. :ill. (chiefly col.), col. maps ;28 cm.