TUCSON, AZ · Cochise County
MONTE VISTA WATER COMPANY Water System
Consumer Confidence Report status
MONTE VISTA WATER COMPANY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for MONTE VISTA WATER COMPANY.
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)
- AZ0402043
- System type
- Community Water System
- Population served
- 150
- Service connections
- 50
- Ownership
- privately owned
- Water source
- groundwater (wells)
MONTE VISTA WATER COMPANY is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, serving 150 people from groundwater.
As of August 1, 2026, its federal record holds 24 entries between 1979 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
Of the 24, 22 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, volatile organic chemicals, and the Consumer Confidence Rule.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedArsenic
October 1, 2023 – December 31, 2023
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2010 – July 23, 2010
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
July 1, 2008 – July 31, 2008
ResolvedMonitoring, Regular
—Arsenic
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Barium
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Cadmium
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Fluoride
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Mercury
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Selenium
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Chromium
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Nitrate
February 28, 1990 – February 27, 1993
ArchivedMonitoring, Regular
—Styrene
January 1, 1987 – January 1, 1992
ArchivedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1987 – January 1, 1992
ArchivedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1987 – January 1, 1992
ArchivedMonitoring, Regular
—1,2-Dichloropropane
January 1, 1987 – January 1, 1992
ArchivedMonitoring, Regular
—CHLOROBENZENE
January 1, 1987 – January 1, 1992
ArchivedMonitoring, Regular
—Ethylbenzene
January 1, 1987 – January 1, 1992
ArchivedMonitoring, Regular
—Selenium
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Barium
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Cadmium
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Chromium
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Fluoride
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Mercury
June 24, 1979 – June 23, 1982
ArchivedMonitoring, Regular
—Nitrate
June 24, 1979 – June 23, 1982
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 |
|---|---|---|---|---|
| October 1, 2023 – December 31, 2023 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| July 1, 2010 – July 23, 2010 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2008 – July 31, 2008 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Resolved |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Arsenic | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Barium | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Cadmium | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Fluoride | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Mercury | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Selenium | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Chromium | — | Archived |
| February 28, 1990 – February 27, 1993 | Monitoring, Regular | Nitrate | — | Archived |
| January 1, 1987 – January 1, 1992 | Monitoring, Regular | Styrene | — | Archived |
| January 1, 1987 – January 1, 1992 | Monitoring, Regular | o-Dichlorobenzene | — | Archived |
| January 1, 1987 – January 1, 1992 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Archived |
| January 1, 1987 – January 1, 1992 | Monitoring, Regular | 1,2-Dichloropropane | — | Archived |
| January 1, 1987 – January 1, 1992 | Monitoring, Regular | CHLOROBENZENE | — | Archived |
| January 1, 1987 – January 1, 1992 | Monitoring, Regular | Ethylbenzene | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Selenium | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Barium | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Cadmium | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Chromium | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Fluoride | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Mercury | — | Archived |
| June 24, 1979 – June 23, 1982 | Monitoring, Regular | Nitrate | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- June 10, 2016Federal Compliance achieved15 linked violations
- September 28, 2011Federal Final Administrative Order issued15 linked violations
Common questions
Is MONTE VISTA WATER COMPANY required to publish a Consumer Confidence Report?
- Yes. MONTE VISTA WATER COMPANY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MONTE VISTA WATER COMPANY’s next Consumer Confidence Report due?
- MONTE VISTA WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MONTE VISTA WATER COMPANY have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MONTE VISTA WATER COMPANY.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
JUHL, PAUL
520-304-8277
TUCSON, AZ 85756