City Of Hillsboro WWTP
600 Parham St, Hillsboro, TX 76645 · Hill County · Publicly Owned Treatment Works
- Average flow
- 1.3 MGD
- Design flow
- 1.81 MGD
- NPDES permit
- TX0023108
- Effective
- Permit expires
- February 2031
- Population served
- 9,492
- CWNS 2022
City Of Hillsboro WWTP is a publicly owned wastewater treatment works in Hillsboro, Hill County, Texas treating an average of 1.3 million gallons per day against a permitted design capacity of 1.81 MGD, serving about 9,492 residents. It discharges under NPDES permit TX0023108 (effective), which expires in February 2031, with 277 recorded violations in the last three years. EPA has recorded 4 formal enforcement actions naming the plant, the latest in September 2023.
Treatment technology
2 treatment structures and unit processes identified at City Of Hillsboro WWTP.
Available with a free Klarifi account
See the full treatment train at City Of Hillsboro WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 277
- Effluent violations
- 44
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 Hillsboro WWTP in EPA's ICIS system.
- Formal actions
- 4
- 1 since FY2020
- Compliance actions
- $16,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Sep 2023
City of Hillsboro
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $10,000
EPA's description of the case:
“The City of Hillsboro was issued an Administrative Order due to effluent exceedances, on September 18, 2023. The city will have 30 days to respond back, about how they will come back into compliance.”
Source: EPA ECHO, civil enforcement case 06-2023-1781.
Full case history with a free Klarifi account
Every action against City Of Hillsboro WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for City Of Hillsboro WWTP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at City Of Hillsboro WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Texas
Bynum · 9 mi away
0.0095 MGD
Itasca · 11 mi away
0.09 MGD
Whitney · 12 mi away
0.17 MGD
Malone · 14 mi away
0.03 MGD
Covington · 14 mi away
0.0023 MGD
West · 14 mi away
0.39 MGD
Milford · 15 mi away
0.0075 MGD
Mertens · 15 mi away
0.03 MGD
City Of Hillsboro 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 · Equalization tank · Centrate · all terms