Washington Boro WWTP
313 W Washington Ave, Washington, NJ 07882 · Warren County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 1.5 MGD
- NPDES permit
- NJ0021113
- Effective
- Permit expires
- June 2029
- Population served
- 54,645
- CWNS 2022
Washington Boro WWTP is a publicly owned wastewater treatment works in Washington, Warren County, New Jersey, serving about 54,645 residents. It discharges under NPDES permit NJ0021113 (effective), which expires in June 2029, with 95 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2026.
Treatment technology
2 treatment structures and unit processes identified at Washington Boro WWTP.
Available with a free Klarifi account
See the full treatment train at Washington Boro WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 95
- Effluent violations
- 19
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Washington Boro WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $5,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Feb 2026
Borough of Washington - Sanitary Sewer System
Administrative order · CWA, NPDES Discharge without a Permit · Final Order No Penalty · Compliance actions $5,000
EPA's description of the case:
“AO to develop a written O&M Manual for the sewer collection system.”
Source: EPA ECHO, civil enforcement case 02-2025-3007.
Full case history with a free Klarifi account
Every action against Washington Boro WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Washington Boro WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in New Jersey
Washington · 2 mi away
0.0017 MGD
Oxford · 5 mi away
0.24 MGD
Glen Gardner · 6 mi away
0.01 MGD
Belvidere · 7 mi away
0.31 MGD
Hampton · 9 mi away
0.00099 MGD
Annandale · 10 mi away
0.03 MGD
Lebanon · 11 mi away
0.0015 MGD
Long Valley · 12 mi away
0.13 MGD
Washington Boro 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 October 26, 2026; facility record last updated November 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms