MAMMOTH, AZ · Pinal County

RIVER RANCH VILLAS MHP Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 1, 2000. 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 Pinal 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): AZ0411384
System type: Community Water System
Population served: 38
Service connections: 30
Ownership: public/private mix
Water source: groundwater (wells)

RIVER RANCH VILLAS MHP is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, formerly serving 38 people from groundwater.

EPA's federal records list this system as inactive in 2000; the record below is historical.

As of August 1, 2026, its federal record holds 9 entries between 1980 and 1989, all of which EPA lists as closed. Nothing has been added since 1989.

Of the 9, 7 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 inorganic chemicals and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 31, 1988 – October 30, 1992
Archived
Monitoring, Regular
—
Arsenic
November 1, 1987 – October 30, 1990
Archived
Monitoring, Regular
—
Mercury
November 1, 1987 – October 30, 1990
Archived
Monitoring, Regular
—
Cadmium
November 1, 1987 – October 30, 1990
Archived
Monitoring, Regular
—
Fluoride
November 1, 1987 – October 30, 1990
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
October 1, 1987 – December 31, 1987
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
May 18, 1982 – July 17, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 1989 – June 30, 1989	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 31, 1988 – October 30, 1992	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
November 1, 1987 – October 30, 1990	Monitoring, Regular	Arsenic	—	Archived
November 1, 1987 – October 30, 1990	Monitoring, Regular	Mercury	—	Archived
November 1, 1987 – October 30, 1990	Monitoring, Regular	Cadmium	—	Archived
November 1, 1987 – October 30, 1990	Monitoring, Regular	Fluoride	—	Archived
October 1, 1987 – December 31, 1987	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
May 18, 1982 – July 17, 1982	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
July 1, 1980 – June 30, 1984	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

September 30, 1980State Othergeneral compliance action — not tied to a specific violation on record
September 24, 1980State Othergeneral compliance action — not tied to a specific violation on record
March 25, 1980State Other1 linked violation

Last known contact on file (system is inactive)

Not on record

Phone not on record

MAMMOTH, AZ 85618