Parkway Wastewater Treatment Plant
Laurel, MD · Prince George'S County · Publicly Owned Treatment Works
- Average flow
- 6.35 MGD
- Design flow
- —
- NPDES permit
- MDL021725
- Effective
- Permit expires
- December 2030
- Population served
- 56,093
- CWNS 2022
Parkway Wastewater Treatment Plant is a publicly owned wastewater treatment works in Laurel, Prince George'S County, Maryland treating an average of 6.35 million gallons per day, serving about 56,093 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit MDL021725 (effective), which expires in December 2030, with 2 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Parkway Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Parkway Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Maryland
Laurel · 1 mi away
1.53 MGD
Savage · 4 mi away
16.68 MGD
Odenton · 6 mi away
0.52 MGD
Bowie · 8 mi away
1.4 MGD
Baltimore · 18 mi away
49.01 MGD
Annapolis · 20 mi away
8.48 MGD
Sykesville · 22 mi away
1.97 MGD
Annapolis · 23 mi away
3.68 MGD
Parkway Wastewater Treatment Plant: 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 February 16, 2025.