How much wastewater does Tarkio WWTF treat?

Tarkio WWTF treats an average of 0.16 MGD.

What treatment technology does Tarkio WWTF use?

Klarifi has identified lagoon, facultative at the Tarkio facility, with attached growth, aerobic, disinfection, uv, lagoon, aerobic on record as planned.

What is the NPDES permit for Tarkio WWTF?

The facility discharges under NPDES permit MO0051608, currently effective, expiring April 2028.

Is Tarkio WWTF in compliance?

Discharge monitoring reports show 19 violations at Tarkio WWTF in the last three years, 19 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Tarkio WWTF and how do I contact them?

Tarkio WWTF is a publicly owned treatment works in Tarkio, Missouri. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Tarkio WWTF

Tarkio, MO · Atchison County · Publicly Owned Treatment Works

Average flow: 0.16 MGD

Design flow: —

NPDES permit: MO0051608; Effective

Permit expires: April 2028

Population served: 1,481; CWNS 2022

Tarkio WWTF is a publicly owned wastewater treatment works in Tarkio, Atchison County, Missouri treating an average of 0.16 million gallons per day, serving about 1,481 residents. Treatment on site includes lagoon, facultative. It discharges under NPDES permit MO0051608 (effective), which expires in April 2028, with 19 recorded violations in the last three years. Planned upgrades on record: attached growth, aerobic, disinfection, uv, lagoon, aerobic.

Treatment technology

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

Lagoon, Facultative

unit process

Attached Growth, Aerobic

planned upgrade

Disinfection, UV

planned upgrade

Lagoon, Aerobic

planned upgrade

Unlock exact unit counts →

Compliance snapshot (last 3 years)

Total violations: 19

Effluent violations: 19

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

Key contacts

Decision-makers at Tarkio WWTF.

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Nearby wastewater treatment plants in Missouri

Westboro WWTF

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—

Fairfax Pws

Fairfax · 8 mi away

0.14 MGD

Craig WWTF

Craig · 14 mi away

0.03 MGD

Clearmont Lagoon

Clearmont · 19 mi away

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Skidmore Wtf

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Maitland WWTF

Maitland · 23 mi away

0.06 MGD

Mound City WWTF

Mound City · 23 mi away

0.05 MGD

Pickering WWTF

Pickering · 29 mi away

0.0031 MGD

Tarkio WWTF: 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 August 14, 2024.

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