Richlyn Manor WWTP
Perry Hall, MD · Baltimore County · Publicly Owned Treatment Works
- Average flow
- 0.05 MGD
- Design flow
- 0.09 MGD
- NPDES permit
- MD0022713
- Expired
- Permit expires
- August 2025
- Population served
- 787
- CWNS 2022
Richlyn Manor WWTP is a publicly owned wastewater treatment works in Perry Hall, Baltimore County, Maryland treating an average of 0.05 million gallons per day against a permitted design capacity of 0.09 MGD, serving about 787 residents. It discharges under NPDES permit MD0022713 (expired), which expires in August 2025, with 1 recorded violation 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
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Richlyn Manor WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Maryland
Glen Arm · 4 mi away
—
Baltimore · 9 mi away
114.1 MGD
Perryman · 12 mi away
10.81 MGD
Jarrettsville · 15 mi away
0.006 MGD
Baltimore · 15 mi away
49.01 MGD
Chestertown · 18 mi away
0.06 MGD
Betterton · 21 mi away
0.02 MGD
Port Deposit · 21 mi away
0.08 MGD
Richlyn Manor 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 September 6, 2024.