EditorialDetective Work

Detective Work

Ultrasonic sensors and level-velocity logger help locate illegal hookups creating excessive flows at an Ontario wastewater treatment plant

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Excessive flows at the Glen Walter (Ont.) Water Pollution Control Plant were preventing developers from expanding the township of South Glengarry.

Six years after its construction in 1989, the 138,700-gpd treatment plant averaged 124,700 gpd with peak flows of 419,000 gpd,...

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