High Ridge WWTP
US 50 And High Ridge Rd, Dillsboro, IN 47018 · Dearborn County · Publicly Owned Treatment Works
- Average flow
- 0.01 MGD
- Design flow
- 0.02 MGD
- NPDES permit
- IN0063525
- Effective
- Permit expires
- November 2029
- Population served
- 200
- CWNS 2022
High Ridge WWTP is a publicly owned wastewater treatment works in Dillsboro, Dearborn County, Indiana treating an average of 0.01 million gallons per day against a permitted design capacity of 0.02 MGD, serving about 200 residents. It discharges under NPDES permit IN0063525 (effective), which expires in November 2029, with 140 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at High Ridge WWTP.
Available with a free Klarifi account
See the full treatment train at High Ridge WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 140
- Effluent violations
- 136
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for High Ridge WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at High Ridge WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Indiana
Dillsboro · 2 mi away
0.15 MGD
Moores Hill · 5 mi away
0.06 MGD
Milan · 7 mi away
0.31 MGD
Friendship · 8 mi away
0.02 MGD
Lawrenceburg · 10 mi away
3.67 MGD
Bennington · 10 mi away
0.03 MGD
Lawrenceburg · 11 mi away
—
Rising Sun · 12 mi away
0.16 MGD
High Ridge 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 16, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms