What is the address of St. James WWTP?

The address on the plant’s EPA facility record is PO Box 426, St. James, MO 65559, in Phelps County. Its coordinates are 38.0339, -91.5912. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does St. James WWTP treat?

St. James WWTP treats an average of 0.86 MGD.

What treatment technology does St. James WWTP use?

Klarifi has identified 5 treatment structures and unit processes at the St. James facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for St. James WWTP?

The facility discharges under NPDES permit MO0093564, currently effective, expiring August 2031.

Is St. James WWTP in compliance?

Discharge monitoring reports show 38 violations at St. James WWTP in the last three years, 6 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates St. James WWTP and how do I contact them?

St. James WWTP is a publicly owned treatment works in St. James, Missouri. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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St. James WWTP

PO Box 426, St. James, MO 65559 · Phelps County · Publicly Owned Treatment Works

Average flow: 0.86 MGD

Design flow: —

NPDES permit: MO0093564; Effective

Permit expires: August 2031

Population served: 7,757; CWNS 2022

St. James WWTP is a publicly owned wastewater treatment works in St. James, Phelps County, Missouri treating an average of 0.86 million gallons per day, serving about 7,757 residents. It discharges under NPDES permit MO0093564 (effective), which expires in August 2031, with 38 recorded violations in the last three years.

Treatment technology

5 treatment structures and unit processes identified at St. James WWTP.

Available with a free Klarifi account

See the full treatment train at St. James WWTP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 38

Effluent violations: 6

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

Key contacts

2 verified contacts for St. James WWTP, with validated emails and direct phone numbers.

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

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St. James WWTP: 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 12, 2026; facility record last updated August 19, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms

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