Washington Twp MUA Long Valley
46 East Mill Road, Long Valley, NJ 07853 · Morris County · Publicly Owned Treatment Works
- Average flow
- 0.13 MGD
- Design flow
- 0.24 MGD
- NPDES permit
- NJ0109061
- Effective
- Permit expires
- December 2030
- Population served
- 7,414
- CWNS 2022
Washington Twp MUA Long Valley is a publicly owned wastewater treatment plant in Long Valley, Morris County, New Jersey treating an average of 0.13 million gallons per day against a permitted design capacity of 0.24 MGD, serving about 7,414 residents. It discharges under NPDES permit NJ0109061 (effective), which expires in December 2030, with 212 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Washington Twp MUA Long Valley.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 212
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Washington Twp MUA Long Valley.
No verified contacts on file yet
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Nearby wastewater treatment plants in New Jersey
Long Valley · 2 mi away
0.34 MGD
Flanders · 4 mi away
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Succasunna · 8 mi away
1.35 MGD
Budd Lake · 9 mi away
2.3 MGD
Lebanon · 9 mi away
0.0015 MGD
Great Meadows · 10 mi away
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Glen Gardner · 10 mi away
0.01 MGD
Annandale · 11 mi away
0.03 MGD
Washington Twp MUA Long Valley: 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 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms