Hanover Boro STP
300 O'Brien Lane, Mcsherrystown, PA 17344 · Adams County · Publicly Owned Treatment Works
- Average flow
- 4 MGD
- Design flow
- 17.6 MGD
- NPDES permit
- PA0026875
- Effective
- Permit expires
- December 2027
- Population served
- —
- CWNS 2022
Hanover Boro STP is a publicly owned wastewater treatment works in Mcsherrystown, Adams County, Pennsylvania treating an average of 4 million gallons per day against a permitted design capacity of 17.6 MGD. It discharges under NPDES permit PA0026875 (effective), which expires in December 2027, with 2 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Hanover Boro STP.
Available with a free Klarifi account
See the full treatment train at Hanover Boro STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
4 verified contacts for Hanover Boro STP, with validated emails and direct phone numbers.
Unlock 4 verified contacts (1 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Hanover Boro STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Hanover · 3 mi away
2.08 MGD
New Oxford · 5 mi away
1.16 MGD
New Oxford · 5 mi away
0.05 MGD
Littlestown · 5 mi away
—
Gettysburg · 6 mi away
0.23 MGD
Abbottstown · 7 mi away
0.15 MGD
New Oxford · 9 mi away
0.13 MGD
Gettysburg · 9 mi away
0.16 MGD
Hanover Boro 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 May 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms