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.

Yosemite : summary of the draft general management plan.

Mode of access: Internet.

Great Basin National Park, Nevada : draft, general management plan, development concept plans, environmental impact statement.

"D-32"--P. [3] of cover.

Designated uses : water quality standards, criteria digest : a compilation of State/Federal criteria.

"July 1980" -- Cover.

Guidance for state water monitoring and wasteload allocation programs.

Mode of access: Internet.

Ambient water quality criteria for acrylonitrile /

Mode of access: Internet.

Ambient water quality criteria for antimony /

Mode of access: Internet.

Ambient water quality criteria for acenaphthene /

Mode of access: Internet.

Ambient water quality criteria for acrolein /

Mode of access: Internet.

Descriptive water quality for the Atchafalaya Basin, Louisiana /

"February 1980."

Ambient water quality criteria for chloroalkyl ethers /

Mode of access: Internet.

Ambient water quality criteria for lead /

Mode of access: Internet.

Ambient water quality criteria for chlorinated benzenes /

Mode of access: Internet.

Ambient water quality criteria for chromium /

Mode of access: Internet.