Six Mile Lagoon Wastewater Treatment Facility
Coolidge Dam Road, Peridot, AZ 85542 · Nan County · Publicly Owned Treatment Works
- Average flow
- 0.12 MGD
- Design flow
- —
- NPDES permit
- AZ0024640
- Effective
- Permit expires
- June 2030
- Population served
- —
- CWNS 2022
Six Mile Lagoon Wastewater Treatment Facility is a publicly owned wastewater treatment works in Peridot, Nan County, Arizona treating an average of 0.12 million gallons per day. It discharges under NPDES permit AZ0024640 (effective), which expires in June 2030, with 848 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in August 2024.
Treatment technology
One treatment structure or unit process identified at Six Mile Lagoon Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Six Mile Lagoon Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 848
- Effluent violations
- 41
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 Six Mile Lagoon Wastewater Treatment Facility in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $430,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Aug 2024
San Carlos Apache WWTF AOC
Administrative order · CWA, NPDES Discharge without a Permit · Final Order No Penalty · Compliance actions $430,000
EPA's description of the case:
“Administrative order on consent regarding unpermitted discharges of an estimated one million gallons of raw sewage.”
Source: EPA ECHO, civil enforcement case 09-2024-1524.
Full case history with a free Klarifi account
Every action against Six Mile Lagoon Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Six Mile Lagoon Wastewater Treatment Facility.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Arizona
Globe · 21 mi away
0.53 MGD
Winkelman · 27 mi away
0.01 MGD
Kearny · 30 mi away
0.09 MGD
Superior · 38 mi away
0.13 MGD
Whiteriver · 49 mi away
0.58 MGD
Safford · 52 mi away
0.72 MGD
Florence · 56 mi away
—
Florence · 57 mi away
—
Six Mile Lagoon Wastewater Treatment Facility: 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 12, 2026; facility record last updated July 28, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms