Antrim Twp Mun Auth STP
13431 Worleytown Rd, Greencastle, PA 17225 · Franklin County · Publicly Owned Treatment Works
- Average flow
- 0.63 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- PA0080519
- Effective
- Permit expires
- June 2029
- Population served
- 6,654
- CWNS 2022
Antrim Twp Mun Auth STP is a publicly owned wastewater treatment works in Greencastle, Franklin County, Pennsylvania treating an average of 0.63 million gallons per day against a permitted design capacity of 1.2 MGD, serving about 6,654 residents. It discharges under NPDES permit PA0080519 (effective), which expires in June 2029, with 0 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in July 2017.
Treatment technology
Treatment structures and unit processes at Antrim Twp Mun Auth STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
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 Antrim Twp Mun Auth STP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $20,000
- all cases
- EPA inspections
- 0
- none on record
Latest case · Jul 2017
ANTRIM TOWNSHIP (ANTRIM TWP PRETREATMENT PROGRAM)
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $20,000
EPA's description of the case:
“PERMITTEE FAILED TO MEET ALL PERMIT REQUIREMENTS. On May 5, 2017, EPA Region III filed a CAFO with Antrim Township, Pennsylvania (Antrim) resolving alleged Clean Water Act (CWA) violations of the…”
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Source: EPA ECHO, civil enforcement case 03-2017-0101.
Full case history with a free Klarifi account
Every action against Antrim Twp Mun Auth STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Antrim Twp Mun Auth STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Antrim Twp Mun Auth STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Greencastle · 4 mi away
0.3 MGD
Greencastle · 5 mi away
0.01 MGD
Mercersburg · 9 mi away
0.12 MGD
Mercersburg · 9 mi away
0.04 MGD
Chambersburg · 11 mi away
0.2 MGD
Waynesboro · 11 mi away
0.16 MGD
Mercersburg · 12 mi away
0.04 MGD
Mont Alto · 13 mi away
0.08 MGD
Antrim Twp Mun Auth STP: 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 12, 2026; facility record last updated August 13, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms