Hot Sulphur Spr. WWTP
Hot Sulphur Springs, CO · Grand County · Publicly Owned Treatment Works
- Average flow
- 0.06 MGD
- Design flow
- 0.14 MGD
- NPDES permit
- COG590084
- Administratively continued
- Permit expires
- March 2026
- Population served
- 683
- CWNS 2022
Hot Sulphur Spr. WWTP is a publicly owned wastewater treatment works in Hot Sulphur Springs, Grand County, Colorado treating an average of 0.06 million gallons per day against a permitted design capacity of 0.14 MGD, serving about 683 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit COG590084 (administratively continued), which expires in March 2026, with 1 recorded violation 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
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hot Sulphur Spr. WWTP.
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Nearby wastewater treatment plants in Colorado
Granby · 8 mi away
0.42 MGD
Tabernash · 15 mi away
0.04 MGD
Grand Lake · 18 mi away
0.59 MGD
Winter Park · 22 mi away
0.2 MGD
Nederland · 29 mi away
0.03 MGD
Idaho Springs · 31 mi away
0.11 MGD
Georgetown · 32 mi away
0.26 MGD
Vail · 34 mi away
1 MGD
Hot Sulphur Spr. 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 July 20, 2026.