CHINO VALLEY, AZ · Yavapai County

MAYER DWID 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): AZ0413039
System type: Community Water System
Population served: 1,400
Service connections: 636
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Arsenic
July 1, 2024 – September 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2018 – November 30, 2018
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2015 – September 30, 2015
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2014 – December 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2004 – June 30, 2004
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Gross Alpha, Excl. Radon and U
May 11, 1989 – May 10, 1993
Archived
Monitoring, Regular
—
Nitrate
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Selenium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Barium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Cadmium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Chromium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Fluoride
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Mercury
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Arsenic
June 17, 1986 – June 15, 1989
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2024 – September 30, 2024	Monitoring, Regular	Arsenic	—	Resolved
October 1, 2018 – November 30, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2015 – September 30, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2014 – December 31, 2014	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2008 – December 31, 2008	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate	—	Resolved
June 1, 2004 – June 30, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 11, 1989 – May 10, 1993	Maximum Contaminant Level Violation, Single Sample	Gross Alpha, Excl. Radon and U	Health-based	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Nitrate	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Selenium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Barium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Cadmium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Chromium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Fluoride	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Mercury	—	Archived
June 17, 1986 – June 15, 1989	Monitoring, Regular	Arsenic	—	Archived

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

Enforcement actions

October 28, 2025State Compliance achieved5 linked violations
September 10, 2025State Compliance achieved8 linked violations
May 14, 2019State Violation/Reminder Notice3 linked violations
May 14, 2019State Public Notification requested3 linked violations
May 20, 2016State Violation/Reminder Notice3 linked violations
April 14, 2016State Compliance achieved25 linked violations
February 9, 2016State Violation/Reminder Notice5 linked violations
December 4, 2015State Violation/Reminder Notice34 linked violations
March 13, 2015State Violation/Reminder Notice6 linked violations
June 28, 2012State Compliance achieved6 linked violations
September 15, 2008State Compliance achieved8 linked violations
July 22, 2008State Violation/Reminder Notice7 linked violations
July 22, 2008State Violation/Reminder Notice8 linked violations
December 17, 2007State Compliance achieved42 linked violations
September 25, 2007State Compliance achieved57 linked violations
December 6, 2006State Compliance achieved3 linked violations
December 6, 2006State Compliance achieved3 linked violations
December 6, 2006State Compliance achieved3 linked violations
December 6, 2006State Compliance achieved2 linked violations
December 6, 2006State Compliance achieved2 linked violations
December 6, 2006State Compliance achieved3 linked violations
December 6, 2006State Compliance achieved3 linked violations
December 6, 2006State Compliance achieved3 linked violations
July 1, 2005State Compliance achieved7 linked violations

Contact

POSTEMA, JERALD A

602-614-6912

CHINO VALLEY, AZ 86323