City Of Grand Rapids Wastewater Treatment Plant
1300 Market Ave SW, Grand Rapids, MI 49503 · Kent County · Publicly Owned Treatment Works
- Average flow
- 42.18 MGD
- Design flow
- —
- NPDES permit
- MI0026069
- Effective
- Permit expires
- October 2029
- Population served
- 344,538
- CWNS 2022
City Of Grand Rapids Wastewater Treatment Plant is a publicly owned wastewater treatment works in Grand Rapids, Kent County, Michigan treating an average of 42.18 million gallons per day, serving about 344,538 residents. It discharges under NPDES permit MI0026069 (effective), which expires in October 2029, with 9 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 1998.
Treatment technology
4 treatment structures and unit processes identified at City Of Grand Rapids Wastewater Treatment Plant.
Available with a free Klarifi account
See the full treatment train at City Of Grand Rapids Wastewater Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for City Of Grand Rapids Wastewater Treatment Plant in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $1,500
- all cases
- EPA inspections
- 0
- none on record
Latest case · Apr 1998
GRAND RAPIDS WWTP, CITY OF
Administrative order · CWA, Sewage Sludge Disposal · Final Order With Penalty · Penalty $1,500
Source: EPA ECHO, civil enforcement case 05-1997-0441.
Full case history with a free Klarifi account
Every action against City Of Grand Rapids Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Industrial users and pretreatment
Industries that discharge process wastewater to City Of Grand Rapids Wastewater Treatment Plant, from the plant's pretreatment programme records.
- Industrial users
- 87
- 9 categorical
- Sampled for PFAS
- 12
- 2023–2024
- Above 12 ng/L PFOS
- 11
- highest 46,000 ng/L
The highest PFOS samples came from Lacks Industries Inc (Kentwood), 46,000 ng/L; Algoma Products (Grand Rapids), 4,450 ng/L; FKI Hardware (Kentwood), 1,890 ng/L. Most users are in metal finishing and plating and food and beverage.
Industrial users of City Of Grand Rapids Wastewater Treatment Plant →PFAS sources at all Michigan plants →
Unlock all 87 industrial users of this plant
Discharge flow, federal category, full PFAS sampling history, source documents and contacts for every industrial user of City Of Grand Rapids Wastewater Treatment Plant. Free with a Klarifi account.
Capital improvement projects in Grand Rapids
Grand Rapids's capital improvement plan lists 64 water, sewer and wastewater line items worth $174M starting 2025–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Grand Rapids →
| Project | Budget | Years |
|---|---|---|
| 5922 - LMFP Residuals Handling Improvements (DWRF) | $30,000,000 | 2029–2029 |
| Cascade - PFAS Phase Watermain Extension | $11,263,050 | 2025–2025 |
| 8352-2025 Rotmill Lead Service Line Replacements | $9,000,000 | 2025–2025 |
| 8354-FY26 Rotomill Projects - Lead Service Line Replacements | $9,000,000 | 2026–2026 |
| 8468 - FY27-Rotomill Project - Lead Service Line Replacement | $9,000,000 | 2027–2027 |
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
10 verified contacts for City Of Grand Rapids Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 10 verified contacts (7 more than shown)
Names, validated emails and direct phone numbers for decision-makers at City Of Grand Rapids Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Grandville · 3 mi away
16.16 MGD
Grand Rapids · 8 mi away
3.74 MGD
Allendale · 9 mi away
—
Coopersville · 13 mi away
1.5 MGD
Sparta · 15 mi away
0.59 MGD
Caledonia · 16 mi away
0.04 MGD
Conklin · 16 mi away
0.29 MGD
Middleville · 17 mi away
0.24 MGD
City Of Grand Rapids Wastewater Treatment Plant: 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 7, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms