120 Thrall Road, Manchester, CT 06045 · Hartford County · Publicly Owned Treatment Works
Hockanum River Water Pollution Control Facility is a publicly owned wastewater treatment works in Manchester, Hartford County, Connecticut treating an average of 5.55 million gallons per day against a permitted design capacity of 8.2 MGD, serving about 64,245 residents. It discharges under NPDES permit CT0100293 (effective), which expires in November 2028, with 11 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in June 2002.
One treatment structure or unit process identified at Hockanum River Water Pollution Control Facility.
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See the full treatment train at Hockanum River 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 Hockanum River Water Pollution Control Facility in EPA's ICIS system.
Latest case · Jun 2002
MANCHESTER CITY OF (HOCKANUM RIVER WPCF)
Administrative order · CWA, SPCC and/or Federal Response Plan Violations · Final Order With Penalty · Penalty $3,000 · Compliance actions $3,500
Source: EPA ECHO, civil enforcement case 01-2002-0045.
Full case history with a free Klarifi account
Every action against Hockanum River Water Pollution Control Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
2 verified contacts for Hockanum River Water Pollution Control Facility, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Hockanum River Water Pollution Control Facility, plus the full compliance history and discharge data.
South Windsor · 5 mi away
2.51 MGD
Glastonbury · 6 mi away
2.5 MGD
Hartford · 6 mi away
56.89 MGD
Enfield · 13 mi away
3.97 MGD
Simsbury · 14 mi away
1.66 MGD
Somers · 14 mi away
0.05 MGD
East Hampton · 15 mi away
1.4 MGD
Portland · 15 mi away
0.36 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 February 27, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms