Gary Sanitary District
3600 W 3rd Ave, Gary, IN 46406 · Lake County · Publicly Owned Treatment Works
- Average flow
- 42.04 MGD
- Design flow
- 60 MGD
- NPDES permit
- IN0022977
- Effective
- Permit expires
- June 2027
- Population served
- 195,005
- CWNS 2022
Gary Sanitary District is a publicly owned wastewater treatment plant in Gary, Lake County, Indiana treating an average of 42.04 million gallons per day against a permitted design capacity of 60 MGD, serving about 195,005 residents. It discharges under NPDES permit IN0022977 (effective), which expires in June 2027, with 23 recorded violations in the last three years. EPA has recorded 6 formal enforcement actions naming the plant, the latest in March 2018.
Treatment technology
3 treatment structures and unit processes identified at Gary Sanitary District.
Available with a free Klarifi account
See the full treatment train at Gary Sanitary District: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 23
- Effluent violations
- 17
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 Gary Sanitary District in EPA's ICIS system.
- Formal actions
- 6
- 0 since FY2020
- Penalties assessed
- $1.9M
- all cases
- Compliance actions
- $48M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Mar 2018
CITY OF GARY
Judicial case · CWA, TSCA, PCBS · Final Order With Penalty · Penalty $75,000 · Compliance actions $37M
EPA's description of the case:
“CD to bring POTW into compliance with CSO regs”
Source: EPA ECHO, civil enforcement case 05-2005-0328.
Full case history with a free Klarifi account
Every action against Gary Sanitary District with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
21 verified contacts for Gary Sanitary District, with validated emails and direct phone numbers.
Unlock 21 verified contacts (18 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Gary Sanitary District, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
East Chicago · 5 mi away
9.42 MGD
Hammond · 6 mi away
34.49 MGD
Schererville · 8 mi away
6.55 MGD
Portage · 10 mi away
4.21 MGD
Dyer · 10 mi away
1.9 MGD
Crown Point · 12 mi away
3.93 MGD
Burns Harbor · 13 mi away
0.68 MGD
Crown Point · 15 mi away
0.46 MGD
Gary Sanitary District: 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 4, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms