Standard specification no. 7, issue no. 3 for circular clarifiers
By: Ontario Ministry of the Environment.
Publisher: Ministry of the Environment, Approvals Branch
Published: 1990
Place of publication: Toronto, ON
Language: eng
Subjects: Sewage clarifiers -- Specifications -- Ontario.; Sewage clarifiers -- Design and construction -- Ontario.
Other titles: Standard specification for circular clarifiers; Circular clarifiers
Notes: "November 1989, reprint. Oct. 1990."

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