Drinking Water Compliance OS

Sells, 09

Cowlic Water System

Current status

No open violations on record as of July 4, 2026.

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)
090400029
System type
Community Water System
Population served
120
Service connections
44
Ownership
Native American tribal
Water source
groundwater (wells)

Violation history

  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2023 – December 31, 2025

    Archived
  • 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)

    March 1, 2000 – March 31, 2000

    Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Contact

TOUA - Water, Wastewater, Propane Dept.

5203835830

Sells, AZ 85634