Kiamesha Lake Sd STP
Monticello, NY · Sullivan County · Publicly Owned Treatment Works
- Average flow
- 0.23 MGD
- Design flow
- 2 MGD
- NPDES permit
- NY0030724
- Effective
- Permit expires
- February 2028
- Population served
- 1,789
- CWNS 2022
Kiamesha Lake Sd STP is a publicly owned wastewater treatment works in Monticello, Sullivan County, New York treating an average of 0.23 million gallons per day against a permitted design capacity of 2 MGD, serving about 1,789 residents. Treatment on site includes clarifiers, aerated lagoons, carrousels / oxidation ditches. It discharges under NPDES permit NY0030724 (effective), which expires in February 2028, with 29 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
- 29
- Effluent violations
- 20
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Kiamesha Lake Sd STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Kiamesha Lake Sd STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in New York
Monticello · 1 mi away
0.71 MGD
Monticello · 3 mi away
0.0015 MGD
Woodridge · 4 mi away
0.28 MGD
South Fallsburg · 4 mi away
1.08 MGD
Monticello · 5 mi away
0.01 MGD
Thompson · 5 mi away
0.15 MGD
Monticello · 6 mi away
0.07 MGD
Loch Sheldrake · 7 mi away
0.21 MGD
Kiamesha Lake Sd 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 September 11, 2026; facility record last updated March 9, 2025.