Report on the 1989 discharges from municipal STPs in Ontario.
Contributors: Ontario. Ministry of the Environment.
Publisher: Ontario Environment
Published: 1991
Place of publication: [Toronto]
Language: eng
Subjects: Sewage disposal plants -- Ontario -- Statistics.; Effluent quality -- Ontario -- Statistics.; Sewage disposal -- Ontario -- Statistics.
Other titles: Report on the 1989 discharges from municipal sewage treatment plants in Ontario.