3500 North Route 94, Hamburg, NJ 07419 · Sussex County · Publicly Owned Treatment Works
Sussex Cnty MUA Upper Wallkill Valley Water Pollution Control Facility is a publicly owned wastewater treatment works in Hamburg, Sussex County, New Jersey treating an average of 1.38 million gallons per day against a permitted design capacity of 3 MGD, serving about 44,856 residents. It discharges under NPDES permit NJ0053350 (administratively continued), which expires in September 2023, with 75 recorded violations in the last three years.
One treatment structure or unit process identified at Sussex Cnty MUA Upper Wallkill Valley Water Pollution Control Facility.
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See the full treatment train at Sussex Cnty MUA Upper Wallkill Valley Water Pollution Control Facility: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Sussex Cnty MUA Upper Wallkill Valley Water Pollution Control Facility in EPA's ICIS system.
No formal federal enforcement case is on record for this plant.
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Every action against Sussex Cnty MUA Upper Wallkill Valley Water Pollution Control Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Sussex Cnty MUA Upper Wallkill Valley Water Pollution Control Facility.
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Wantage Twp · 5 mi away
0.0028 MGD
Vernon Twp · 7 mi away
0.0085 MGD
Frankford · 9 mi away
0.0037 MGD
Jefferson Twp · 9 mi away
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Newton · 9 mi away
0.02 MGD
Jefferson Twp · 9 mi away
0.0039 MGD
Newton · 9 mi away
0.0047 MGD
Sparta · 10 mi away
0.0044 MGD
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 May 21, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms