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The St. Croix Valley Wastewater Treatment Plant in Oak Park Heights, above, serves as a good example of a community seeking to improve its wastewater infrastucture. It was named the best “medium advanced facility” in the Great Lakes region by the U.S. Environmental Protection Agency in 2001, according to the  Metropolitan Council.
The St. Croix Valley Wastewater Treatment Plant in Oak Park Heights, above, serves as a good example of a community seeking to improve its wastewater infrastucture. It was named the best “medium advanced facility” in the Great Lakes region by the U.S. Environmental Protection Agency in 2001, according to the Metropolitan Council.