Mesa Water Quality
Arizona
According to EPA SDWIS, Mesa, Arizona is served by 2 community water systems covering about 466,100 people. The same extract lists 7 health-based violation records, most recently coded 1005 in 2017. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Mesa, Arizona is delivered through 2 EPA-regulated community water systems serving an estimated 466,100 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 7 violation records across the 2 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 1 distinct EPA contaminant code: Arsenic. 26 TRI-reporting industrial facilities are also located within the city limits.
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 |
|---|---|---|---|
| MESA CITY OF | 466,000 | 0 | Clean |
| PEEKABOO WATER COOP | 100 | 7 | 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 |
|---|---|---|
| PEEKABOO WATER COOP | Arsenic | 2017-07-01 |
| PEEKABOO WATER COOP | Arsenic | 2017-04-01 |
| PEEKABOO WATER COOP | Arsenic | 2015-04-01 |
| PEEKABOO WATER COOP | Arsenic | 2015-01-01 |
| PEEKABOO WATER COOP | Arsenic | 2014-10-01 |
| PEEKABOO WATER COOP | Arsenic | 2013-01-01 |
| PEEKABOO WATER COOP | Arsenic | 2012-10-01 |
What are Mesa's health-based records for?
Every health-based violation record in Mesa carries one EPA contaminant or rule code. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Arsenic | 7 | 1 |
TRI Facilities in Mesa
| Facility | Total Releases |
|---|---|
| Cmc Rebar Arizona | 905.8K lbs |
| Fujifilm Electronic Materials USA Inc | 278.9K lbs |
| Mesa Fully Formed LLC | 66.8K lbs |
| Zf Passive Safety Systems Inc - Mesa Operations | 30.6K lbs |
| Infineon Technologies Epi Services Inc. | 25.9K lbs |
| Mgc Pure Chemicals America Inc | 18.3K lbs |
| Boeing Co | 4.4K lbs |
| Nammo Defense Systems Inc | 3.9K lbs |
| Southwest Distributing Co. | 2.6K lbs |
| Higley Concrete Batch Plant | 350 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Mesa, Arizona? ▼
How many water violations does Mesa have in this EPA extract? ▼
What contaminants were found in Mesa water? ▼
How many water systems serve Mesa? ▼
Where does Mesa get its drinking water? ▼
Are there pollution sources near Mesa? ▼
How does Mesa compare in Arizona?
Of the 191 Arizona places with at least one community water system on file, Mesa ranks #93 by number of systems (2).
Either side of it: Lake Havasu City (2), Mcneal (2), New River (2), Page (2)
About This Data
Figures here are the current EPA SDWIS extract joined to the 2 community water systems whose service area lists Mesa, 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.