How much wastewater does Maynardville STP treat?

Maynardville STP treats an average of 0.23 MGD and is permitted for a design flow of 0.6 MGD.

What treatment technology does Maynardville STP use?

Klarifi has identified clarifiers, disinfection, chlorine/ chloramine at the Maynardville facility, with disinfection, uv on record as planned.

What is the NPDES permit for Maynardville STP?

The facility discharges under NPDES permit TN0022870, currently effective, expiring March 2028.

Is Maynardville STP in compliance?

Discharge monitoring reports show 28 violations at Maynardville STP in the last three years, 28 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Maynardville STP and how do I contact them?

Maynardville STP is a publicly owned treatment works in Maynardville, Tennessee. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Maynardville STP

Maynardville, TN · Union County · Publicly Owned Treatment Works

Average flow: 0.23 MGD

Design flow: 0.6 MGD

NPDES permit: TN0022870; Effective

Permit expires: March 2028

Population served: 2,567; CWNS 2022

Maynardville STP is a publicly owned wastewater treatment works in Maynardville, Union County, Tennessee treating an average of 0.23 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 2,567 residents. Treatment on site includes clarifiers, disinfection, chlorine/ chloramine. It discharges under NPDES permit TN0022870 (effective), which expires in March 2028, with 28 recorded violations in the last three years. Planned upgrades on record: disinfection, uv.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Clarifiers

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Disinfection, chlorine/ chloramine

unit process

Disinfection, UV

planned upgrade

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Compliance snapshot (last 3 years)

Total violations: 28

Effluent violations: 28

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

1 verified contact for Maynardville STP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Maynardville STP, plus the full compliance history and discharge data.

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Maynardville STP: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed September 11, 2026; facility record last updated November 26, 2025.

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