What is the address of Clarence WWTF?

The address on the plant’s EPA facility record is Shelby County Road 305, Clarence, MO 63437, in Shelby County. Its coordinates are 39.7544, -92.2443. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Clarence WWTF treat?

Clarence WWTF treats an average of 0.27 MGD.

What treatment technology does Clarence WWTF use?

Klarifi has identified 2 treatment structures and unit processes at the Clarence facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Clarence WWTF?

The facility discharges under NPDES permit MO0041076, currently effective, expiring November 2028.

Is Clarence WWTF in compliance?

Discharge monitoring reports show 12 violations at Clarence WWTF in the last three years, 4 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Clarence WWTF and how do I contact them?

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

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Clarence WWTF

Shelby County Road 305, Clarence, MO 63437 · Shelby County · Publicly Owned Treatment Works

Average flow: 0.27 MGD

Design flow: —

NPDES permit: MO0041076; Effective

Permit expires: November 2028

Population served: 1,004; CWNS 2022

Clarence WWTF is a publicly owned wastewater treatment works in Clarence, Shelby County, Missouri treating an average of 0.27 million gallons per day, serving about 1,004 residents. It discharges under NPDES permit MO0041076 (effective), which expires in November 2028, with 12 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified, 1 planned upgrade on record at Clarence WWTF.

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See the full treatment train at Clarence WWTF: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 12

Effluent violations: 4

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

Key contacts

Decision-makers at Clarence WWTF.

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Nearby wastewater treatment plants in Missouri

Macon WWTP

Macon · 10 mi away

1.33 MGD

Shelbyville WWTF

Shelbyville · 11 mi away

0.06 MGD

Shelbina WWTP

Shelbina · 12 mi away

0.33 MGD

Jacksonville WWTF

Jacksonville · 16 mi away

0.09 MGD

Novelty WWTF

Novelty · 18 mi away

0.0015 MGD

Cairo WWTF

Cairo · 19 mi away

0.28 MGD

Madison Pws

Madison · 20 mi away

0.04 MGD

Hunnewell WWTP

Hunnewell · 22 mi away

0.02 MGD

Clarence 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 October 19, 2026; facility record last updated September 15, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms

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