Herkimer County WWTP
Mohawk, NY · Herkimer County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 6.1 MGD
- NPDES permit
- NY0036528
- Administratively continued
- Permit expires
- May 2022
- Population served
- 27,745
- CWNS 2022
Herkimer County WWTP is a publicly owned wastewater treatment works in Mohawk, Herkimer County, New York, serving about 27,745 residents. Treatment on site includes clarifiers. It discharges under NPDES permit NY0036528 (administratively continued), which expires in May 2022, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
Unlock
Unlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Herkimer County WWTP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in New York
Herkimer · 2 mi away
0.5 MGD
Little Falls · 9 mi away
3.76 MGD
Richfield Springs · 12 mi away
0.1 MGD
Dolgeville · 14 mi away
0.52 MGD
Clinton · 19 mi away
0.8 MGD
Clark Mills · 19 mi away
0.11 MGD
Waterville · 20 mi away
0.1 MGD
Nelliston · 21 mi away
0.25 MGD
Herkimer County WWTP: 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 September 11, 2026; facility record last updated May 21, 2025.