How much wastewater does Neshoba County treat?

Neshoba County treats an average of 0.09 MGD and is permitted for a design flow of 0.13 MGD.

What treatment technology does Neshoba County use?

Klarifi has identified clarifiers at the Philadelphia facility.

What is the NPDES permit for Neshoba County?

The facility discharges under NPDES permit MS0043478, currently effective, expiring March 2028.

Is Neshoba County in compliance?

Discharge monitoring reports show 58 violations at Neshoba County in the last three years, 58 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Neshoba County and how do I contact them?

Neshoba County is a publicly owned treatment works in Philadelphia, Mississippi. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Neshoba County

Philadelphia, MS · Neshoba County · Publicly Owned Treatment Works

Average flow: 0.09 MGD

Design flow: 0.13 MGD

NPDES permit: MS0043478; Effective

Permit expires: March 2028

Population served: —; CWNS 2022

Neshoba County is a publicly owned wastewater treatment plant in Philadelphia, Neshoba County, Mississippi treating an average of 0.09 million gallons per day against a permitted design capacity of 0.13 MGD. Treatment on site includes clarifiers. It discharges under NPDES permit MS0043478 (effective), which expires in March 2028, with 58 recorded violations in the last three years.

Treatment technology

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

Clarifiers

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Compliance snapshot (last 3 years)

Total violations: 58

Effluent violations: 58

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

Key contacts

Decision-makers at Neshoba County.

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Nearby wastewater treatment plants in Mississippi

Pearl River Wastewater Treatment Plant

Philadelphia · 5 mi away

0.67 MGD

New Harmony WWTP

Philadelphia · 9 mi away

0.12 MGD

Conehatta School WWTF

Conehatta · 18 mi away

0.03 MGD

Standing Pine WWTF

Conehatta · 24 mi away

0.03 MGD

Weir POTW

Weir · 36 mi away

—

Meridian POTW

Meridian · 37 mi away

5.41 MGD

Ackerman POTW

Ackerman · 37 mi away

—

Macon POTW

Macon · 39 mi away

—

Neshoba County: 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 May 20, 2025.

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