What is the address of Holland WWTP?

The address on the plant’s EPA facility record is 8825 Cr 750 W, Holland, IN 47541, in Dubois County. Its coordinates are 38.2495, -87.0517. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Holland WWTP treat?

Holland WWTP treats an average of 0.12 MGD and is permitted for a design flow of 0.1 MGD.

What treatment technology does Holland WWTP use?

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

What is the NPDES permit for Holland WWTP?

The facility discharges under NPDES permit IN0023108, currently effective, expiring September 2028.

Is Holland WWTP in compliance?

Discharge monitoring reports show 37 violations at Holland WWTP in the last three years, 30 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Holland WWTP and how do I contact them?

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

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Holland WWTP

8825 Cr 750 W, Holland, IN 47541 · Dubois County · Publicly Owned Treatment Works

Average flow: 0.12 MGD

Design flow: 0.1 MGD

NPDES permit: IN0023108; Effective

Permit expires: September 2028

Population served: 619; CWNS 2022

Holland WWTP is a publicly owned wastewater treatment works in Holland, Dubois County, Indiana treating an average of 0.12 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 619 residents. It discharges under NPDES permit IN0023108 (effective), which expires in September 2028, with 37 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Holland WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 37

Effluent violations: 30

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

Key contacts

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

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

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Huntingburg Municipal WWTP

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Dale Municipal WWTP

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Ferdinand Wastewater Treatment Plant

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Gentryville WWTP

Gentryville · 10 mi away

—

Tennyson Water Utility

Tennyson · 12 mi away

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Santa Claus Wastewater Treatment Plant

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Lynnville WWTP

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Holland 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 8, 2025.

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

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