Sells, 09

Chui Chu Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.

System facts

System ID (PWSID): 090400003
System type: Community Water System
Population served: 420
Service connections: 103
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025
Unaddressed
Monitoring, Regular
—
Nitrate
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2003 – December 31, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2002 – October 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2000 – December 31, 2000
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2000 – November 30, 2000
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
April 1, 2015 – June 30, 2015	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2002 – October 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 2000 – December 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2000 – November 30, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

August 21, 2015Federal Compliance achieved1 linked violation
April 19, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 11, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
March 25, 2008Federal Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
August 24, 2005Federal Compliance achieved1 linked violation
August 2, 2005Federal Compliance achieved1 linked violation
August 2, 2005Federal Compliance achieved1 linked violation
August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 2, 2005Federal Compliance achieved1 linked violation
May 9, 2005Federal Compliance achieved1 linked violation

Contact

TOUA - Water, Wastewater, Propane Dept.

5203835830

Sells, AZ 85634