The City of Clinton owns and operates the Larkins Water Pollution Control Facility, which is frequently recognized as one of the most advanced tertiary biological wastewater treatment facilities in the State. The facility is permitted for an average daily flow of 5.0 million gallons and subject to the NC Department of Water Quality's (DWQ) most stringent effluent discharge limits. Records will provide that we are currently at half of the facility's design flow capacity. To describe the facility's size, a gallon of wastewater will remain under immediate supervised treatment for approximately 72 hours before being discharged into Williams Old Mill Branch. You can view our Annual Performance Report here (PDF: 98k)

Our NPDES Permit requires that the facility be staffed 24 hours a day and 7 days a week by a State Certified Operator. During the course of an average day, our certified lab and staff conducts approximately 95 analytical tests to monitor the ongoing biological process, upstream and downstream sampling, and the DWQ influent and effluent limit parameters.

The overall operation has many constituents which include the operation of a State Certified Lab, the Land Application of Biosolids, our Industrial Pretreatment Program, domestic sampling and headworks analysis, and up and down stream monitoring.

On November 30th, 2001, the staff of the Larkins Facility achieved the threshold of operating 12 consecutive months without a NPDES violation.

Wastewater Treatment Collection Plant Report

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