Mandatory certification program for wastewater treatment plant operators in the State of Washington.

Description

Related Names

Washington (State). Department of Ecology.

Language(s)

English

Published

[Olympia?] : State of Washington, Dept. of Ecology, [1977].

Subjects

Sewage disposal plants > Sewage disposal plants / Washington (State) > Sewage disposal plants / Washington (State) / Directories.
Sewage disposal plants > Sewage disposal plants / Washington (State) > Sewage disposal plants / Washington (State) / Standards.

Physical Description

iii, 79 p. ; 28 cm.

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