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City foreman flags potential sewer-meter discrepancy after test-meter readings
Summary
Foreman Spencer Cumley reported a discrepancy between the installed influent/effluent meters and a test meter, noting a difference of roughly 30,000–40,000 gallons per day. The council asked for quotes and possible live testing to verify measurements.
Foreman Spencer Cumley told the council on Oct. 27 that recent testing of the city’s wastewater meters showed a significant discrepancy: a portable test meter used by the vendor measured approximately 30,000–40,000 gallons per day less discharge than the installed meter’s readings. Cumley said the influent mag meter is difficult to validate because it is bolted near an elbow and that site geometry may affect accuracy.
Cumley recommended live testing by the vendor (GPM) when they calibrate meters and said an effluent meter replacement estimate is about $3,600; he will obtain quotes and consider whether the installed meters should be replaced with units that also record velocity. Council members were informed that the system remains state-compliant and that additional data will guide any replacement decisions.
Why it matters: Meter accuracy affects regulatory compliance, billing, and infrastructure planning. Cumley asked the council to authorize follow-up testing and to permit staff to solicit quotes for replacement equipment if warranted.
Next steps: Foreman Cumley will request GPM bring a test meter during calibration for live data comparison, gather quotes for a replacement effluent meter, and report findings to the council.
