Wpsc Marinette Mgp
1603 Ely St., Marinette, WI 54143 · Marinette County · Publicly Owned Treatment Works
- Average flow
- 1.89 MGD
- Design flow
- 4.25 MGD
- NPDES permit
- WI0026182
- Expired
- Permit expires
- September 2022
- Population served
- 10,968
- CWNS 2022
Wpsc Marinette Mgp is a publicly owned wastewater treatment plant in Marinette, Marinette County, Wisconsin treating an average of 1.89 million gallons per day against a permitted design capacity of 4.25 MGD, serving about 10,968 residents. It discharges under NPDES permit WI0026182 (expired), which expires in September 2022, with 34 recorded violations in the last three years. EPA has recorded 5 formal enforcement actions naming the plant, the latest in September 2020.
Treatment technology
3 treatment structures and unit processes identified at Wpsc Marinette Mgp.
Available with a free Klarifi account
See the full treatment train at Wpsc Marinette Mgp: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 34
- Effluent violations
- 3
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 Wpsc Marinette Mgp in EPA's ICIS system.
- Formal actions
- 5
- 0 since FY2020
- Compliance actions
- $18M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Sep 2020
WPSC MARINETTE - CONSENT DECREE (CERCLA)
Judicial case · CERCLA, Cost Recovery · Final Order Entered · Compliance actions $7.6M
EPA's description of the case:
“referral for remedial action”
Source: EPA ECHO, civil enforcement case 05-2019-1016.
Full case history with a free Klarifi account
Every action against Wpsc Marinette Mgp with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Wpsc Marinette Mgp, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Wpsc Marinette Mgp, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Wisconsin
Peshtigo · 7 mi away
—
Oconto · 19 mi away
0.51 MGD
Fish Creek · 20 mi away
0.1 MGD
Coleman · 20 mi away
0.16 MGD
Crivitz · 22 mi away
0.11 MGD
Sturgeon Bay · 23 mi away
1.7 MGD
Lena · 23 mi away
0.09 MGD
Ephraim · 23 mi away
0.07 MGD
Wpsc Marinette Mgp: 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 March 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms