Black Hawk/central City Sd WWTF
Black Hawk, CO · Gilpin County · Publicly Owned Treatment Works
- Average flow
- 0.49 MGD
- Design flow
- 2 MGD
- NPDES permit
- CO0046761
- Administratively continued
- Permit expires
- June 2017
- Population served
- 1,679
- CWNS 2022
Black Hawk/central City Sd WWTF is a publicly owned wastewater treatment works in Black Hawk, Gilpin County, Colorado treating an average of 0.49 million gallons per day against a permitted design capacity of 2 MGD, serving about 1,679 residents. Treatment on site includes biogas balloons. It discharges under NPDES permit CO0046761 (administratively continued), which expires in June 2017, with 5 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Black Hawk/central City Sd WWTF.
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Nearby wastewater treatment plants in Colorado
Idaho Springs · 3 mi away
0.23 MGD
Evergreen · 3 mi away
0.0064 MGD
Blackhawk · 7 mi away
0.001 MGD
Evergreen · 10 mi away
0.59 MGD
Idaho Springs · 12 mi away
0.11 MGD
Jefferson County · 14 mi away
1.73 MGD
Eldorado Springs · 14 mi away
0.02 MGD
Georgetown · 14 mi away
0.26 MGD
Black Hawk/central City Sd 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 5, 2025.