Norwich (c) STP
Route 12 South, Norwich, NY 13815 · Chenango County · Publicly Owned Treatment Works
- Average flow
- 1.17 MGD
- Design flow
- 2.5 MGD
- NPDES permit
- NY0021423
- Effective
- Permit expires
- February 2029
- Population served
- 7,892
- CWNS 2022
Norwich (c) STP is a publicly owned wastewater treatment works in Norwich, Chenango County, New York treating an average of 1.17 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 7,892 residents. It discharges under NPDES permit NY0021423 (effective), which expires in February 2029, with 43 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in March 2017.
Treatment technology
3 treatment structures and unit processes identified at Norwich (c) STP.
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See the full treatment train at Norwich (c) STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 43
- Effluent violations
- 43
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 Norwich (c) STP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $1,500
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Mar 2017
City of Norwich
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $1,500
EPA's description of the case:
“On September 20, 2016, EPA conducted an inspection of the City of Norwich. The City is required, pursuant to its SPDES permit to have written O & M procedures for its sanitary sewer system. The City…”
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Source: EPA ECHO, civil enforcement case 02-2017-3025.
Full case history with a free Klarifi account
Every action against Norwich (c) STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
2 verified contacts for Norwich (c) STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Norwich (c) STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Oxford · 7 mi away
0.07 MGD
Sherburne · 12 mi away
0.36 MGD
Sidney · 15 mi away
0.59 MGD
Greene · 18 mi away
0.29 MGD
Hamilton · 21 mi away
0.49 MGD
Oneonta · 22 mi away
1.99 MGD
Whitney Point · 26 mi away
0.09 MGD
Port Crane · 26 mi away
0.0014 MGD
Norwich (c) 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 May 21, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms