What is the address of Hopkins Wwsl?

The address on the plant’s EPA facility record is 10 Wamhoff St, Hopkins, MI 49328, in Allegan County. Its coordinates are 42.6184, -85.7673. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Hopkins Wwsl treat?

Hopkins Wwsl treats an average of 1 MGD.

What treatment technology does Hopkins Wwsl use?

Klarifi has identified one treatment structure or unit process at the Hopkins facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Hopkins Wwsl?

The facility discharges under NPDES permit MIG580301, currently administratively continued, expiring April 2024.

Is Hopkins Wwsl in compliance?

Discharge monitoring reports show 62 violations at Hopkins Wwsl in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Hopkins Wwsl and how do I contact them?

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

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Hopkins Wwsl

10 Wamhoff St, Hopkins, MI 49328 · Allegan County · Publicly Owned Treatment Works

Average flow: 1 MGD

Design flow: —

NPDES permit: MIG580301; Administratively continued

Permit expires: April 2024

Population served: 577; CWNS 2022

Hopkins Wwsl is a publicly owned wastewater treatment plant in Hopkins, Allegan County, Michigan treating an average of 1 million gallons per day, serving about 577 residents. It discharges under NPDES permit MIG580301 (administratively continued), which expires in April 2024, with 62 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Hopkins Wwsl.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 62

Effluent violations: 2

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

Key contacts

2 verified contacts for Hopkins Wwsl, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Michigan

Allegan WWTP

Allegan · 7 mi away

0.77 MGD

Gun Lake WWTP

Shelbyville · 12 mi away

0.5 MGD

Green Lake Wwsl

Caledonia · 12 mi away

0.04 MGD

Plainwell WWTP

Plainwell · 13 mi away

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Hamilton Com Schools

Hamilton · 14 mi away

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Thornapple Twp-Duncan Lk Wwsl

Middleville · 16 mi away

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Zeeland WWTP

Zeeland · 18 mi away

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Bloomingdale Village WWTP

Bloomingdale · 19 mi away

0.21 MGD

Hopkins Wwsl: 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 August 6, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms

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