Water quality in the middle Great Lakes : results of the 1985 USEPA survey of Lakes Erie, Huron, and Michigan /

Mode of access: Internet.

Data base system for State water quality management information system /

Mode of access: Internet.

Sampling strategies for water quality in the Great Lakes /

Mode of access: Internet.

Forest chemicals and water quality.

Mode of access: Internet.

Ground-water quality and geochemistry of Las Vegas Valley, Clark County, Nevada, 1981-83 : implementation of a monitoring network /

Mode of access: Internet.

Trends in selected water-quality characteristics, Powder River and tributaries, Montana and Wyoming, water years 1968-88 and 1975-88 /

Mode of access: Internet.

Detailed study of water quality, bottom sediment, and biota associated with irrigation drainage in the Klamath basin, California and Oregon, 1990-92 /

Mode of access: Internet.

Water quality management program, supplemental guidance for FY 81

Cover title

Air quality criteria for hydrocarbons.

Includes bibliographies.

Air quality criteria for photochemical oxidants.

Includes bibliographies.

Air quality criteria for carbon monoxide.

Includes bibliographies.

Level III: Receiving water quality modeling for urban stormwater management /

Mode of access: Internet.

Regulatory water quality monitoring networks : statistical and economic considerations /

Mode of access: Internet.

Workshop on verification of water quality models /

"Contract no. 68-01-3872."

Water quality and biological effects of urban runoff on Coyote Creek : phase I, preliminary survey /

Mode of access: Internet.