GRAND CANYON, AZ · Coconino County

GRAND CANYON NATIONAL PARK 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 Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID): AZ0403702
System type: Community Water System
Population served: 16,590
Service connections: 630
Ownership: federal government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2025 – June 30, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 2, 2024 – August 26, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2022 – October 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2014 – December 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2012 – March 31, 2012
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2011 – September 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2011 – June 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2009 – December 31, 2017
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2008 – September 14, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – October 30, 2008
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2006 – June 30, 2006
Resolved
Monitoring, Regular
—
Nickel
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2001 – December 31, 2001
Resolved
Monitoring, Regular
—
Endrin
January 1, 2000 – June 14, 2000
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 2, 2024 – August 26, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2022 – October 31, 2022	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2010 – January 31, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2009 – December 31, 2017	Monitoring, Regular	Radium-228	—	Resolved
October 1, 2008 – September 14, 2011	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2008 – October 30, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2006 – June 30, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Nickel	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2001 – December 31, 2001	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2000 – June 14, 2000	Monitoring, Regular	Endrin	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

November 18, 2024State Violation/Reminder Notice81 linked violations
March 13, 2024State Compliance achieved81 linked violations
July 13, 2022State Public Notification received35 linked violations
January 2, 2020State Compliance achieved22 linked violations
March 28, 2019State Violation/Reminder Notice36 linked violations
February 20, 2018State Violation/Reminder Notice86 linked violations
February 20, 2018State Intentional no-action55 linked violations
December 6, 2006State Compliance achieved30 linked violations
December 6, 2006State Compliance achieved9 linked violations
December 6, 2006State Compliance achieved8 linked violations
December 6, 2006State Compliance achieved13 linked violations
March 5, 2003State Compliance achieved52 linked violations
June 14, 2000State Compliance achieved58 linked violations
December 31, 1996Federal Compliance achieved1 linked violation
September 30, 1980State Othergeneral compliance action — not tied to a specific violation on record

Contact

STONE, TREACY

Phone not on record

GRAND CANYON, AZ 86023