BULLHEAD CITY, AZ · Mohave County

THUMB BUTTE WATER ASSOCI Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of April 1, 1996. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Mohave County, AZ.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): AZ0408060
System type: Community Water System
Population served: 2,500
Service connections: 470
Ownership: privately owned
Water source: groundwater (wells)

THUMB BUTTE WATER ASSOCI is one of 272 community water systems in Arizona in the 501 to 3,300 people size category, formerly serving 2,500 people from groundwater.

EPA's federal records list this system as inactive in 1996; the record below is historical.

As of August 1, 2026, its federal record holds 12 entries between 1979 and 1987, all of which EPA lists as closed. Nothing has been added since 1987.

Of the 12, 10 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, inorganic chemicals, and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Styrene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Toluene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
December 31, 1984 – December 31, 1988
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
February 2, 1983 – April 1, 1983
Archived
Monitoring, Check/Repeat/Confirmation
—
Fluoride
June 24, 1980 – July 23, 1980
Archived
Monitoring, Regular
—
Fluoride
June 24, 1980 – July 23, 1980
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
May 19, 1980 – June 18, 1980
Archived
Monitoring, Check/Repeat/Confirmation
—
Fluoride
June 24, 1979 – July 23, 1979
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 1987 – January 1, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Styrene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Toluene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	o-Dichlorobenzene	—	Archived
December 31, 1984 – December 31, 1988	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
February 2, 1983 – April 1, 1983	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
June 24, 1980 – July 23, 1980	Monitoring, Check/Repeat/Confirmation	Fluoride	—	Archived
June 24, 1980 – July 23, 1980	Monitoring, Regular	Fluoride	—	Archived
May 19, 1980 – June 18, 1980	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
June 24, 1979 – July 23, 1979	Monitoring, Check/Repeat/Confirmation	Fluoride	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

Not on record

Phone not on record

BULLHEAD CITY, AZ 86442