Drinking Water Compliance OS

Fountain Hills, 09

Fort McDowell Community 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)
090400088
System type
Community Water System
Population served
7,260
Service connections
367
Ownership
Native American tribal
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    Arsenic

    July 1, 2025 – September 30, 2025

    Resolved
  • Monitoring, Regular

    Nitrate

    July 1, 2025 – September 30, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2025 – March 31, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 1, 2024 – January 28, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2024 – December 31, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 1, 2022 – February 21, 2023

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2022 – September 30, 2022

    Resolved
  • Report Sample Result/Fail Monitor (RTCR)

    Revised Total Coliform Rule

    January 1, 2022 – February 23, 2022

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2019 – September 30, 2019

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Diquat

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Endothall

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2017 – December 31, 2019

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2013 – October 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    January 1, 2013 – January 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2012 – September 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2012 – June 30, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    January 1, 2012 – March 31, 2012

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    October 1, 2011 – December 31, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    July 1, 2011 – September 30, 2011

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Arsenic

    April 1, 2011 – June 30, 2011

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    September 1, 2010 – April 27, 2011

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    July 1, 2009 – July 31, 2009

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 2001 – March 31, 2001

    Resolved
  • Monitoring, Regular

    Glyphosate

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 1997 – November 30, 1997

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 1996 – December 31, 1996

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 1994 – May 31, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 1994 – April 30, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 1993 – August 31, 1993

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 1993 – December 31, 1995

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    February 1, 1992 – February 29, 1992

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Contact

Fort McDowell Yavapai Nation

4807897000

Fountain Hills, AZ 85269-7779