Canandaigua - C STP
183 Saltonstall Street, Canandaigua, NY 14424 · Ontario County · Publicly Owned Treatment Works
- Average flow
- 2.89 MGD
- Design flow
- 6.5 MGD
- NPDES permit
- NY0025968
- Effective
- Permit expires
- November 2028
- Population served
- 20,323
- CWNS 2022
Canandaigua - C STP is a publicly owned wastewater treatment works in Canandaigua, Ontario County, New York treating an average of 2.89 million gallons per day against a permitted design capacity of 6.5 MGD, serving about 20,323 residents. It discharges under NPDES permit NY0025968 (effective), which expires in November 2028, with 50 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in December 2019.
Treatment technology
2 treatment structures and unit processes identified at Canandaigua - C STP.
Available with a free Klarifi account
See the full treatment train at Canandaigua - C STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 50
- Effluent violations
- 23
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 Canandaigua - C STP in EPA's ICIS system.
- Formal actions
- 2
- 1 since FY2020
- Compliance actions
- $1,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Dec 2019
City of Canandaigua
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $1,000
EPA's description of the case:
“This AO has not been developed based on the need to eliminate existing discharges to receiving water bodies but rather to enforce SPDES permit requirements regarding proper O&M of the sanitary sewer…”
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Source: EPA ECHO, civil enforcement case 02-2020-3017.
Full case history with a free Klarifi account
Every action against Canandaigua - C STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
5 verified contacts for Canandaigua - C STP, with validated emails and direct phone numbers.
Unlock 5 verified contacts (2 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Canandaigua - C STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Manchester · 7 mi away
0.41 MGD
Rushville · 8 mi away
0.07 MGD
Gorham · 9 mi away
0.04 MGD
Victor · 9 mi away
2 MGD
Clifton Springs · 9 mi away
0.3 MGD
Victor · 9 mi away
0.36 MGD
Phelps · 12 mi away
0.19 MGD
Palmyra, Town Of · 13 mi away
1.4 MGD
Canandaigua - 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 April 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms