Annapolis WRF
Annapolis, MD · Anne Arundel County · Publicly Owned Treatment Works
- Average flow
- 8.48 MGD
- Design flow
- 13 MGD
- NPDES permit
- MD0021814
- Effective
- Permit expires
- January 2030
- Population served
- 47,859
- CWNS 2022
Annapolis WRF is a publicly owned wastewater treatment works in Annapolis, Anne Arundel County, Maryland treating an average of 8.48 million gallons per day against a permitted design capacity of 13 MGD, serving about 47,859 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit MD0021814 (effective), which expires in January 2030, with 6 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
- 6
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Annapolis
Annapolis's capital improvement plan lists 4 water, sewer and wastewater line items worth $45M starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Annapolis →
| Project | Budget | Years |
|---|---|---|
| Water Distribution Rehabilitation | $29,400,000 | 2025–2030 |
| Sewer Rehabilitation | $13,500,000 | 2025–2030 |
| Water Tank Rehabilitation | $1,425,000 | 2025–2026 |
| Well House Improvements | $315,000 | 2025–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
4 verified contacts for Annapolis WRF, 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 Annapolis WRF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Maryland
Annapolis · 6 mi away
3.68 MGD
Bowie · 13 mi away
1.4 MGD
Tracys Landing · 14 mi away
0.00083 MGD
Odenton · 15 mi away
0.52 MGD
Tilghman · 18 mi away
0.11 MGD
Rock Hall · 19 mi away
0.22 MGD
Saint Michaels · 19 mi away
0.29 MGD
Baltimore · 19 mi away
49.01 MGD
Annapolis WRF: 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 August 11, 2026.