Grand Island Wastewater Treatment Plant
Grand Island, NY · Erie County · Publicly Owned Treatment Works
- Average flow
- 1.6 MGD
- Design flow
- 3.5 MGD
- NPDES permit
- NY0027693
- Administratively continued
- Permit expires
- July 2016
- Population served
- 10,051
- CWNS 2022
Grand Island Wastewater Treatment Plant is a publicly owned wastewater treatment works in Grand Island, Erie County, New York treating an average of 1.6 million gallons per day against a permitted design capacity of 3.5 MGD, serving about 10,051 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit NY0027693 (administratively continued), which expires in July 2016, with 75 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 75
- Effluent violations
- 55
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Grand Island Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Grand Island Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
North Tonawanda · 4 mi away
3.77 MGD
Niagara Falls · 5 mi away
19.6 MGD
Tonawanda · 5 mi away
11.7 MGD
Buffalo · 10 mi away
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Lewiston · 11 mi away
—
Lockport · 16 mi away
6.55 MGD
Wilson · 19 mi away
0.1 MGD
Buffalo · 20 mi away
9.5 MGD
Grand Island Wastewater Treatment Plant: 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 August 17, 2026.