Sierra Vista Water Quality
Arizona
According to EPA SDWIS, Sierra Vista, Arizona is served by 12 community water systems covering about 56,567 people. The same extract lists 18 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Sierra Vista, Arizona is delivered through 12 EPA-regulated community water systems serving an estimated 56,567 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 18 violation records across the 12 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule, Groundwater Rule.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Arizona drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| BELLA VISTA CITY WATER SYSTEM | 20,045 | 0 | Clean |
| LIBERTY WATER RIO RICO | 17,960 | 0 | Clean |
| PUEBLO DEL SOL WATER COMPANY | 12,804 | 9 | Health |
| BELLA VISTA WATER SOUTH | 2,178 | 0 | Clean |
| SOUTHERN SUNRISE WC COCHISE HORSESHOE | 1,588 | 0 | Clean |
| SOUTHERN SUNRISE WC MIRACLE VALLEY | 620 | 0 | Clean |
| NORTHERN SUNRISE WC CORONADO | 553 | 0 | Clean |
| SIERRA VISTA MH VILLAGE | 328 | 2 | Health |
| NORTHERN SUNRISE WC MUSTANG CRYSTAL | 315 | 0 | Clean |
| NACO ESTATES | 75 | 6 | Health |
| SULGER WATER COMPANY 2 | 67 | 0 | Clean |
| DESERT WINDS MOBILE PARK | 34 | 1 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| DESERT WINDS MOBILE PARK | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| NACO ESTATES | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SIERRA VISTA MH VILLAGE | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SIERRA VISTA MH VILLAGE | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| PUEBLO DEL SOL WATER COMPANY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| PUEBLO DEL SOL WATER COMPANY | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| NACO ESTATES | Revised Total Coliform Rule | 2024-09-30 |
| NACO ESTATES | Revised Total Coliform Rule | 2024-09-30 |
| NACO ESTATES | Revised Total Coliform Rule | 2024-09-30 |
| NACO ESTATES | Revised Total Coliform Rule | 2022-09-11 |
| NACO ESTATES | Revised Total Coliform Rule | 2022-09-11 |
| PUEBLO DEL SOL WATER COMPANY | Groundwater Rule | 2022-04-24 |
| PUEBLO DEL SOL WATER COMPANY | Groundwater Rule | 2022-04-09 |
| PUEBLO DEL SOL WATER COMPANY | Revised Total Coliform Rule | 2020-09-29 |
| PUEBLO DEL SOL WATER COMPANY | Revised Total Coliform Rule | 2020-08-29 |
| PUEBLO DEL SOL WATER COMPANY | Revised Total Coliform Rule | 2020-06-30 |
| PUEBLO DEL SOL WATER COMPANY | Revised Total Coliform Rule | 2019-10-30 |
| PUEBLO DEL SOL WATER COMPANY | Revised Total Coliform Rule | 2019-01-01 |
What are Sierra Vista's health-based records for?
Sierra Vista's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Revised Total Coliform Rule | 10 | 2 |
| Lead and Copper Rule Revisions | 6 | 4 |
| Groundwater Rule | 2 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Sierra Vista, Arizona? ▼
How many water violations does Sierra Vista have in this EPA extract? ▼
What contaminants were found in Sierra Vista water? ▼
How many water systems serve Sierra Vista? ▼
Where does Sierra Vista get its drinking water? ▼
How does Sierra Vista compare in Arizona?
Of the 191 Arizona places with at least one community water system on file, Sierra Vista ranks #15 by number of systems (12).
Either side of it: Sedona (15), Camp Verde (12), Fort Defiance (11), Bullhead City (10)
About This Data
Figures here are the current EPA SDWIS extract joined to the 12 community water systems whose service area lists Sierra Vista, ranked against the 191 Arizona places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.