What is the address of Palmyra WWTP?

The address on the plant’s EPA facility record is US 150 & Sr 135 1 Mi W, Palmyra, IN 47164, in Harrison County. Its coordinates are 38.4158, -86.1214. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Palmyra WWTP treat?

Palmyra WWTP treats an average of 0.1 MGD and is permitted for a design flow of 0.14 MGD.

What treatment technology does Palmyra WWTP use?

Klarifi has identified 3 treatment structures and unit processes at the Palmyra facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Palmyra WWTP?

The facility discharges under NPDES permit IN0039403, currently effective, expiring March 2028.

Is Palmyra WWTP in compliance?

Discharge monitoring reports show 64 violations at Palmyra WWTP in the last three years, 63 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Palmyra WWTP and how do I contact them?

Palmyra WWTP is a publicly owned treatment works in Palmyra, Indiana. Klarifi lists 4 verified decision-maker contacts for this facility, available with a free trial.

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Palmyra WWTP

US 150 & Sr 135 1 Mi W, Palmyra, IN 47164 · Harrison County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.14 MGD

NPDES permit: IN0039403; Effective

Permit expires: March 2028

Population served: 898; CWNS 2022

Palmyra WWTP is a publicly owned wastewater treatment works in Palmyra, Harrison County, Indiana treating an average of 0.1 million gallons per day against a permitted design capacity of 0.14 MGD, serving about 898 residents. It discharges under NPDES permit IN0039403 (effective), which expires in March 2028, with 64 recorded violations in the last three years.

Treatment technology

3 treatment structures and unit processes identified at Palmyra WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 64

Effluent violations: 63

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

Key contacts

4 verified contacts for Palmyra WWTP, with validated emails and direct phone numbers.

Unlock 4 verified contacts (1 more than shown)

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

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Nearby wastewater treatment plants in Indiana

New Pekin Wastewater Treatment Plant

Pekin · 8 mi away

0.15 MGD

Milltown WWTP

Depauw · 10 mi away

0.03 MGD

Borden Wwtp, Town Of

Borden · 11 mi away

0.25 MGD

Georgetown Water Reclamation Facility

Georgetown · 11 mi away

0.33 MGD

Galena WWTP

Galena · 11 mi away

0.07 MGD

Marengo Municipal WWTP

Marengo · 12 mi away

0.28 MGD

Salem WWTP

Salem · 12 mi away

1.46 MGD

Lanesville WWTP

Lanesville · 14 mi away

0.04 MGD

Palmyra 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 26, 2026; facility record last updated November 6, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms

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