Allegan WWTP
350 North Street, Allegan, MI 49010 · Allegan County · Publicly Owned Treatment Works
- Average flow
- 0.77 MGD
- Design flow
- —
- NPDES permit
- MI0020532
- Effective
- Permit expires
- October 2030
- Population served
- 5,188
- CWNS 2022
Allegan WWTP is a publicly owned wastewater treatment works in Allegan, Allegan County, Michigan treating an average of 0.77 million gallons per day, serving about 5,188 residents. It discharges under NPDES permit MI0020532 (effective), which expires in October 2030, with 13 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Allegan WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 13
- Effluent violations
- 13
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Industrial users and pretreatment
Industries that discharge process wastewater to Allegan WWTP, from the plant's pretreatment programme records.
- Industrial users
- 2
- on record
On record: Key Gas Components (Allegan); Perrigo Company (Allegan). Most users are in chemicals, plastics and petroleum and water, sewer and power utilities.
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of Allegan WWTP. Free with a Klarifi account.
Capital improvement projects in Allegan
Allegan's capital improvement plan lists 12 water, sewer and wastewater line items worth $11M starting 2024–2033. The largest budgeted items are shown here.
All water and sewer capital projects in Allegan →
| Project | Budget | Years |
|---|---|---|
| AMP-Plant | $3,479,272 | 2024–2034 |
| AMP/NonPipeAsset Repairs-Dist/Coll | $2,326,345 | 2024–2034 |
| Dist/Coll Improvements | $1,155,000 | 2024–2027 |
| Lead Service Replacement | $1,050,000 | 2027–2034 |
| Plant Improvements | $702,000 | 2024–2030 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
4 verified contacts for Allegan 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 Allegan WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Hopkins · 7 mi away
1 MGD
Bloomingdale · 12 mi away
0.21 MGD
Plainwell · 12 mi away
0.34 MGD
Hamilton · 13 mi away
0.22 MGD
Shelbyville · 17 mi away
0.5 MGD
Saugatuck · 19 mi away
1.49 MGD
Caledonia · 19 mi away
0.04 MGD
Zeeland · 20 mi away
2.29 MGD
Allegan 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 February 26, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms