What is the address of Hymera Municipal STP?

The address on the plant’s EPA facility record is 7100 N Cr 725 E, Hymera, IN 47855, in Sullivan County. Its coordinates are 39.1878, -87.2729. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Hymera Municipal STP treat?

Hymera Municipal STP treats an average of 0.1 MGD and is permitted for a design flow of 0.25 MGD.

What treatment technology does Hymera Municipal STP use?

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

What is the NPDES permit for Hymera Municipal STP?

The facility discharges under NPDES permit IN0040134, currently effective, expiring January 2029.

Is Hymera Municipal STP in compliance?

Discharge monitoring reports show 11 violations at Hymera Municipal STP in the last three years, 11 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Hymera Municipal STP and how do I contact them?

Hymera Municipal STP is a publicly owned treatment works in Hymera, Indiana. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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Hymera Municipal STP

7100 N Cr 725 E, Hymera, IN 47855 · Sullivan County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.25 MGD

NPDES permit: IN0040134; Effective

Permit expires: January 2029

Population served: 653; CWNS 2022

Hymera Municipal STP is a publicly owned wastewater treatment works in Hymera, Sullivan County, Indiana treating an average of 0.1 million gallons per day against a permitted design capacity of 0.25 MGD, serving about 653 residents. It discharges under NPDES permit IN0040134 (effective), which expires in January 2029, with 11 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Hymera Municipal STP.

Available with a free Klarifi account

See the full treatment train at Hymera Municipal STP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 11

Effluent violations: 11

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

Key contacts

2 verified contacts for Hymera Municipal STP, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Indiana

Jasonville Municipal WWTP

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0.5 MGD

Indiana American Water - Farmersburg

Farmersburg · 6 mi away

0.23 MGD

Shelburn Municipal WWTP

Shelburn · 7 mi away

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Dugger Wwtp, Town Of

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Clay City Wwtp, Town Of

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Sullivan WWTP

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Linton WWTP

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Riley WWTP

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Hymera Municipal STP: 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 May 18, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms

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