Granby Sanitation District WWTF
Granby, CO · Grand County · Publicly Owned Treatment Works
- Average flow
- 0.42 MGD
- Design flow
- 2 MGD
- NPDES permit
- CO0020699
- Administratively continued
- Permit expires
- December 2025
- Population served
- 4,240
- CWNS 2022
Granby Sanitation District WWTF is a publicly owned wastewater treatment works in Granby, Grand County, Colorado treating an average of 0.42 million gallons per day against a permitted design capacity of 2 MGD, serving about 4,240 residents. It discharges under NPDES permit CO0020699 (administratively continued), which expires in December 2025, with 40 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 40
- Effluent violations
- 40
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Granby
Granby's capital improvement plan lists 1 water, sewer and wastewater line items worth $3M starting 2025–2025. The largest budgeted items are shown here.
| Project | Budget | Years |
|---|---|---|
| NSA Water Treatment Plant | $2,500,000 | 2025–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
Decision-makers at Granby Sanitation District WWTF.
No verified contacts on file yet
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Nearby wastewater treatment plants in Colorado
Hot Sulphur Springs · 8 mi away
0.06 MGD
Tabernash · 8 mi away
0.04 MGD
Grand Lake · 13 mi away
0.59 MGD
Winter Park · 16 mi away
0.2 MGD
Nederland · 22 mi away
0.03 MGD
Idaho Springs · 25 mi away
0.11 MGD
Georgetown · 28 mi away
0.26 MGD
Blackhawk · 29 mi away
0.001 MGD
Granby Sanitation District WWTF: 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 1, 2025.