Arapahoe County Water And Waste Water Authority
Englewood, CO · Arapahoe County · Publicly Owned Treatment Works
- Average flow
- 2.53 MGD
- Design flow
- 3.6 MGD
- NPDES permit
- COE015000
- Administratively continued
- Permit expires
- August 2020
- Population served
- 41,512
- CWNS 2022
Arapahoe County Water And Waste Water Authority is a publicly owned wastewater treatment works in Englewood, Arapahoe County, Colorado treating an average of 2.53 million gallons per day against a permitted design capacity of 3.6 MGD, serving about 41,512 residents. Treatment on site includes clarifiers, uncovered lagoons. It discharges under NPDES permit COE015000 (administratively continued), which expires in August 2020, with 0 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
- 0
- 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 Englewood
Englewood's capital improvement plan lists 26 water, sewer and wastewater line items worth $125M starting 2025–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Englewood →
| Project | Budget | Years |
|---|---|---|
| SPR CIP Budget (50/50) (WIFIA/Cash) 41 30002-002 | $36,844,000 | 2025–2029 |
| Lead Reduction SRF 40 30023-003 | $27,427,000 | 2025–2026 |
| City Ditch Piping Project (Cash) 40 30001-002 | $10,617,040 | 2025–2026 |
| Pump Station Improvements (Program) (WIFIA) 40 30003-003 | $10,050,480 | 2025–2029 |
| Water Supply Projects (Program) (Cash) 40 30022-002 | $6,036,120 | 2027–2029 |
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
7 verified contacts for Arapahoe County Water And Waste Water Authority, with validated emails and direct phone numbers.
Unlock 7 verified contacts (4 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Arapahoe County Water And Waste Water Authority, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Colorado
Parker · 4 mi away
0.74 MGD
Parker · 5 mi away
5.1 MGD
Parker · 11 mi away
1.04 MGD
Aurora · 11 mi away
—
Englewood · 16 mi away
—
Jefferson County · 21 mi away
1.73 MGD
Larkspur · 24 mi away
0.09 MGD
Conifer · 24 mi away
0.02 MGD
Arapahoe County Water And Waste Water Authority: 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 27, 2025.