Big Sky clearwater
Contributors: American Water Works Association. Montana Section
Publisher: s.n.
Published: 1971
Place of publication: [Montana
Language: eng
Subjects: Water; Periodicals; Sewage; Purification
Notes: Some issues are the official bulletin of the MSAWWA-MWPCA Conference.

For water and wastewater-treatment operators across Montana.

Description based on: Vol. 5, no. 3 (Oct., 1975); title from cover.

Some issues lack vol. numbering.

Summer issue 79-    published by the Water Quality Bureau, Dept. of Health and Environmental Services (in cooperation with the Montana Section, American Water Works Association, and the Montana Water Pollution Control Association, summer issue 1981-   )