Cloverhill STP
363 Route 206, Flanders, NJ 07836 · Morris County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- NJ0021954
- Effective
- Permit expires
- December 2029
- Population served
- 28,815
- CWNS 2022
Cloverhill STP is a publicly owned wastewater treatment works in Flanders, Morris County, New Jersey, serving about 28,815 residents. It discharges under NPDES permit NJ0021954 (effective), which expires in December 2029, with 135 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Cloverhill STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 135
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Cloverhill STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in New Jersey
Long Valley · 3 mi away
0.34 MGD
Long Valley · 4 mi away
0.13 MGD
Succasunna · 4 mi away
1.35 MGD
Budd Lake · 7 mi away
2.3 MGD
Bernardsville · 10 mi away
0.48 MGD
Great Meadows · 10 mi away
—
Greystone Park · 11 mi away
0.23 MGD
Jefferson · 12 mi away
0.001 MGD
Cloverhill STP: 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 September 14, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms