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Regulatory Requirements
Overview

Laboratory Technicians Perform Specialized
Test Procedures on Wastewater Samples
Under its Montana Pollutant Discharge Elimination System (MPDES) permit, the City is required to provide secondary treatment to all collected wastewater prior to discharging into the Yellowstone River, as well as meet the MPDES permit requirements for e-coli bacteria, pH, grease, total chlorine residual and effluent toxicity.

On-Site Library
The wastewater treatment plant has an on-site laboratory that is capable of performing nearly all permit required testing as well as process control samples.

Permits

The plant also holds permits issued by the Montana Department of Environmental Quality for stormwater discharges, biosolids disposal, and air emissions generated from the methane burning generator.