Philip Q Maiorana WWTP
6301 West Erie Avenue, Lorain, OH 44053 · Lorain County · Publicly Owned Treatment Works
- Average flow
- 2.36 MGD
- Design flow
- 5.4 MGD
- NPDES permit
- OH0089672
- Effective
- Permit expires
- December 2030
- Population served
- 16,500
- CWNS 2022
Philip Q Maiorana WWTP is a publicly owned wastewater treatment works in Lorain, Lorain County, Ohio treating an average of 2.36 million gallons per day against a permitted design capacity of 5.4 MGD, serving about 16,500 residents. It discharges under NPDES permit OH0089672 (effective), which expires in December 2030, with 7 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in November 2019.
Treatment technology
2 treatment structures and unit processes identified at Philip Q Maiorana WWTP.
Available with a free Klarifi account
See the full treatment train at Philip Q Maiorana WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 7
- Effluent violations
- 7
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 Philip Q Maiorana WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $3.2M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Nov 2019
City of Lorain AOC
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $3.2M · The case also names 1 other plant, and its amounts cover all of them
EPA's description of the case:
“Final AOC to address alleged CWA NPDEs permit violations.”
Source: EPA ECHO, civil enforcement case 05-2020-0302.
Full case history with a free Klarifi account
Every action against Philip Q Maiorana WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Philip Q Maiorana WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Philip Q Maiorana WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Ohio
Amherst · 2 mi away
1.91 MGD
Lorain · 5 mi away
12.3 MGD
Vermilion · 6 mi away
1.37 MGD
Elyria · 6 mi away
0.06 MGD
Elyria · 8 mi away
7.97 MGD
North Ridgeville · 9 mi away
6.82 MGD
Oberlin · 10 mi away
1.39 MGD
Vermilion · 10 mi away
0.0002 MGD
Philip Q Maiorana 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 March 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms