New Windsor WWTP
New Windsor, MD · Carroll County · Publicly Owned Treatment Works
- Average flow
- 0.09 MGD
- Design flow
- 0.09 MGD
- NPDES permit
- MD0022586
- Expired
- Permit expires
- November 2025
- Population served
- 1,599
- CWNS 2022
New Windsor WWTP is a publicly owned wastewater treatment works in New Windsor, Carroll County, Maryland treating an average of 0.09 million gallons per day against a permitted design capacity of 0.09 MGD, serving about 1,599 residents. It discharges under NPDES permit MD0022586 (expired), which expires in November 2025, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
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.
Key contacts
Decision-makers at New Windsor WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Maryland
Westminster · 4 mi away
3.41 MGD
Union Bridge · 4 mi away
0.12 MGD
Westminster · 6 mi away
0.002 MGD
Taneytown · 9 mi away
0.51 MGD
Mount Airy · 12 mi away
0.69 MGD
Mount Airy · 13 mi away
0.03 MGD
Mount Airy · 13 mi away
0.06 MGD
Manchester · 15 mi away
0.43 MGD
New Windsor 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 September 11, 2026; facility record last updated November 28, 2025.