Big Dry Creek WWTP
Westminster, CO · Adams County · Publicly Owned Treatment Works
- Average flow
- 6.9 MGD
- Design flow
- —
- NPDES permit
- COR901608
- Effective
- Permit expires
- June 2029
- Population served
- 122,100
- CWNS 2022
Big Dry Creek WWTP is a publicly owned wastewater treatment works in Westminster, Adams County, Colorado treating an average of 6.9 million gallons per day, serving about 122,100 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit COR901608 (effective), which expires in June 2029, with 388 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
- 388
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Westminster
Westminster's capital improvement plan lists 50 water, sewer and wastewater line items worth $197M starting 2025–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Westminster →
| Project | Budget | Years |
|---|---|---|
| Sheridan Blvd Watermain Repairs & Replacement -120th Ave to 92nd Ave | $18,000,000 | 2027–2029 |
| Westminster Boulevard Drinking Water Treatment Facility | $16,777,000 | 2027–2028 |
| 92nd Ave Watermain Repairs & Replacement, Hwy 36 to Old Wadsworth Blvd | $13,500,000 | 2027–2029 |
| Big Dry Creek 54-inch Interceptor Sewer Repair & Replacement | $12,000,000 | 2025–2026 |
| Semper Rehabilitation | $8,433,000 | 2029–2029 |
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
20 verified contacts for Big Dry Creek WWTP, with validated emails and direct phone numbers.
Unlock 20 verified contacts (17 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Big Dry Creek WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Colorado
Brighton · 5 mi away
3.65 MGD
Lafayette · 6 mi away
3.03 MGD
Louisville · 7 mi away
2.68 MGD
Fort Lupton · 14 mi away
3.86 MGD
Aurora · 14 mi away
—
Jefferson County · 14 mi away
1.73 MGD
Eldorado Springs · 15 mi away
0.02 MGD
City Of Longmont · 16 mi away
3.55 MGD
Big Dry Creek 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 March 1, 2025.