Delta WWTP
1398 Highway 50, Delta, CO 81416 · Delta County · Publicly Owned Treatment Works
- Average flow
- 1.2 MGD
- Design flow
- —
- NPDES permit
- COR900345
- Effective
- Permit expires
- June 2029
- Population served
- 10,180
- CWNS 2022
Delta WWTP is a publicly owned wastewater treatment works in Delta, Delta County, Colorado treating an average of 1.2 million gallons per day, serving about 10,180 residents. It discharges under NPDES permit COR900345 (effective), which expires in June 2029, with 1 recorded violation in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in January 2004.
Treatment technology
Treatment structures and unit processes at Delta WWTP.
Treatment structure data not yet analyzed for this facility.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Delta WWTP in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Penalties assessed
- $10,000
- all cases
- Compliance actions
- $700
- required by EPA orders
- EPA inspections
- 6
- latest Dec 2005
Latest case · Jan 2004
City of Delta
Administrative order · CWA, Sewage Sludge Disposal · Final Order No Penalty · Compliance actions $700
EPA's description of the case:
“EPA issued a general permit, effective 8/16/2002, for facilities in Colorado and Indian country that generate, treat, and/or use or dispose of sewage sludge by land application, landfill, and surface…”
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Source: EPA ECHO, civil enforcement case 08-2003-0087.
Full case history with a free Klarifi account
Every action against Delta WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Delta WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Colorado
Olathe · 11 mi away
0.18 MGD
Montrose · 20 mi away
0.3 MGD
Hotchkiss · 20 mi away
0.16 MGD
Mesa · 22 mi away
0.03 MGD
Paonia · 27 mi away
0.13 MGD
Palisade · 27 mi away
0.02 MGD
Crawford · 27 mi away
0.05 MGD
Clifton · 28 mi away
1.3 MGD
Delta 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 October 26, 2026; facility record last updated December 15, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms