Joint Venture WWTF
Lat 34.143, Lon -114.308, Parker, AZ 85344 · La Paz County · Publicly Owned Treatment Works
- Average flow
- 0.48 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- AZ0021415
- Effective
- Permit expires
- November 2026
- Population served
- 5,602
- CWNS 2022
Joint Venture WWTF is a publicly owned wastewater treatment works in Parker, La Paz County, Arizona treating an average of 0.48 million gallons per day against a permitted design capacity of 1.2 MGD, serving about 5,602 residents. It discharges under NPDES permit AZ0021415 (effective), which expires in November 2026, with 165 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in March 2015.
Treatment technology
One treatment structure or unit process identified at Joint Venture WWTF.
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See the full treatment train at Joint Venture WWTF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 165
- Effluent violations
- 61
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 Joint Venture WWTF in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $100,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Mar 2015
Colorado River Sewage System Joint Venture AOC
Administrative order · CWA, NPDES Discharge without a Permit · Final Order Issued · Compliance actions $100,000
EPA's description of the case:
“This is an Administrative Order on Consent (AOC) between US EPA and Colorado River Sewage System Joint Venture (Respondent) for alleged violation of the Clean Water Act National Pollutant Discharge…”
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Source: EPA ECHO, civil enforcement case 09-2015-1508.
Full case history with a free Klarifi account
Every action against Joint Venture WWTF with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
3 verified contacts for Joint Venture WWTF, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Joint Venture WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Arizona
Quartzsite · 31 mi away
0.2 MGD
Bullhead City · 65 mi away
—
Kingman · 73 mi away
0.21 MGD
Yuma · 100 mi away
0.09 MGD
Yuma · 100 mi away
7.28 MGD
Somerton · 110 mi away
0.74 MGD
Prescott Valley · 111 mi away
2.69 MGD
Buckeye · 112 mi away
0.22 MGD
Joint Venture 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 October 26, 2026; facility record last updated March 26, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms