June 14, 2026
Gilbert, AZ Water Quality Report 2026
Unlock the full breakdown — detected levels vs. legal limits, plus what removes each one.
Full contaminant breakdown
EPA Six-Year Review compliance monitoring, 2012–2019 — the most recent national compliance dataset EPA has published. See the sections above for more recent violation and PFAS records.
| Contaminant | Avg. detected | Highest sample | Federal limit | Avg. vs. limit |
|---|---|---|---|---|
| ArsenicEPA health goal: zero | 6.24 ppb | 12 ppb | 10 ppb | 62% |
| Total trihalomethanes (TTHMs) | 44.9 ppb | 110 ppb | 80 ppb | 56% |
| BromateEPA health goal: zero | 4.58 ppb | 29 ppb | 10 ppb | 46% |
| Ethylene dibromide (EDB)EPA health goal: zero | 0.021 ppb | 0.022 ppb | 0.05 ppb | 42% |
| Nitrate | 3880 ppb | 8000 ppb | 10000 ppb | 39% |
| Nitrate + nitrite | 3600 ppb | 8000 ppb | 10000 ppb | 36% |
| Radium (combined)EPA health goal: zero | 1.07 pCi/L | 1.8 pCi/L | 5 pCi/L | 21% |
| Haloacetic acids (HAA5) | 11.5 ppb | 48 ppb | 60 ppb | 19% |
| Fluoride | 655 ppb | 1000 ppb | 4000 ppb | 16% |
| DEHP (phthalate)EPA health goal: zero | 0.83 ppb | 0.83 ppb | 6 ppb | 14% |
| Tetrachloroethylene (PCE)EPA health goal: zero | 0.63 ppb | 0.74 ppb | 5 ppb | 13% |
| DBCPEPA health goal: zero | 0.022 ppb | 0.022 ppb | 0.2 ppb | 11% |
| UraniumEPA health goal: zero | 3.17 ppb | 7.6 ppb | 30 ppb | 11% |
| Chromium (total) | 9.79 ppb | 19 ppb | 100 ppb | 10% |
| Gross alpha radioactivityEPA health goal: zero | 1.12 pCi/L | 3.9 pCi/L | 15 pCi/L | 7% |
| LeadEPA health goal: zero | 0.964 ppb | 10 ppb | 15 ppb (action level) | 6% |
| Selenium | 2.54 ppb | 3.1 ppb | 50 ppb | 5% |
| Copper | 56.3 ppb | 336 ppb | 1300 ppb (action level) | 4% |
| Barium | 49.5 ppb | 140 ppb | 2000 ppb | 2% |
| Diquat | 0.41 ppb | 0.41 ppb | 20 ppb | 2% |
| Dalapon | 1.2 ppb | 1.3 ppb | 200 ppb | 1% |
| 2,4-D | 0.303 ppb | 0.65 ppb | 70 ppb | <1% |
| Xylenes (total) | 3.1 ppb | 3.1 ppb | 10000 ppb | <1% |
Also tested, no detections: 1,1,1-Trichloroethane, 1,1,2-Trichloroethane, 1,1-Dichloroethylene, 1,2,4-Trichlorobenzene, 1,2-Dichloroethane, 1,2-Dichloropropane, 2,4,5-TP (Silvex), Alachlor, Antimony, Asbestos, Atrazine, Benzene, Benzo(a)pyrene, Beryllium, Cadmium, Carbofuran, Carbon tetrachloride, Chlordane, Chlorobenzene, Cyanide, DEHA (adipate), Dichloromethane, Dinoseb, Dioxin (2,3,7,8-TCDD), Endothall, Endrin, Ethylbenzene, Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene, Hexachlorocyclopentadiene, Lindane, Mercury (inorganic), Methoxychlor, Nitrite, Oxamyl, PCBs, Pentachlorophenol, Picloram, Simazine, Styrene, Thallium, Toluene, Toxaphene, Trichloroethylene (TCE), Vinyl chloride, cis-1,2-Dichloroethylene, o-Dichlorobenzene, p-Dichlorobenzene, trans-1,2-Dichloroethylene.
Reverse osmosis (drinking water)
The treatment category most often matched to dissolved contaminants like lead, arsenic, nitrate, fluoride, and radiological contaminants detected in this system.
Shop reverse osmosis →Whole-house carbon filtration
The treatment category most often matched to disinfection byproducts (TTHMs, haloacetic acids), chlorine taste and odor, and organic compounds detected in this system.
Shop whole-house systems →Source: U.S. EPA Six-Year Review 4 compliance monitoring data (2012–2019), the most recent nationwide compliance dataset EPA has released, reported at the water-system level. A detection is not a violation. “Avg. vs. limit” compares the average of laboratory detections to the federal MCL or action level; individual faucets can differ — household plumbing affects lead and copper, and a state-certified laboratory test of your own tap is the only way to confirm levels in your home. Treatment categories are general matches, not a certification claim for a specific product and contaminant.
Water Utility: Town of Gilbert
Population Served: 247,600 residents
Data Sources: EPA SDWIS + EPA UCMR5
Report Year: 2026
Gilbert, Arizona drinking water is supplied by Town of Gilbert. All US public water systems must test drinking water and report results to the EPA under the Safe Drinking Water Act. This report summarizes health-based violations and PFAS detections recorded in federal databases to help you make informed decisions about home water filtration.
EPA Health-Based Violation History
The following contaminants exceeded EPA maximum contaminant levels (MCLs) at this utility since 2010:
| Contaminant | Violation Years | Filter Solution |
|---|---|---|
| Long Term 2 Enhanced Surface Water Treatment Rule | 2017 | Water Filters |
| Tthm | 2017 | Water Filters |
Source: EPA SDWIS, updated quarterly. Health-based violations only.
PFAS "Forever Chemical" Detections
PFAS compounds were detected in this water system during EPA's Fifth Unregulated Contaminant Monitoring Rule (UCMR5) testing program (2023-2025). EPA has set maximum contaminant levels of 4 parts per trillion (ppt) for PFOA and PFOS individually.
| PFAS Compound | Level Detected | Solution |
|---|---|---|
| PFBS | 0.0111 ug/L | PFAS Filters |
| PFBA | 0.0058 ug/L | PFAS Filters |
| PFPeA | 0.0034 ug/L | PFAS Filters |
| PFOS | 0.0056 ug/L | PFAS Filters |
| PFOA | 0.0065 ug/L | PFAS Filters |
| PFHxA | 0.0044 ug/L | PFAS Filters |
Source: EPA UCMR5 occurrence data. Levels in micrograms per liter (ug/L = parts per billion). 1 ug/L = 1,000 ppt.
Should You Filter Your Gilbert Water?
Even utilities with no EPA violations may have contaminants present below legal limits but above health guidelines. Many independent health organizations recommend filtration for households with children, pregnant women, or immunocompromised individuals.
Protect Your Gilbert Home Water
PureWaterGuys.com carries filtration systems certified to reduce PFAS compounds like PFOA and PFOS. We ship to all Arizona addresses with free expert guidance on the right system.
Shop PFAS Water Filters →Take the Water QuizFilters for Gilbert, AZ Water Issues
Based on contaminants detected in this report, these systems are worth considering:
NSF-certified filters proven to remove PFAS, PFOA, PFOS, and 200+ contaminants.
Shop PFAS / Forever Chemicals Filters →
Reverse osmosis systems that reduce nitrates to safe levels.
Shop Nitrates / Nitrites Filters →
Whole-house carbon filters that eliminate chlorine taste, odor, and DBPs.
Shop Chlorine / Disinfection Byproducts Filters →
Frequently Asked Questions
Is Gilbert tap water safe to drink?
Town of Gilbert meets EPA federal standards. However, trace levels of PFAS and disinfection byproducts are common in US municipal water.
Does Gilbert water have PFAS?
PFAS compounds were detected in this utility's water during EPA UCMR5 monitoring. A certified PFAS filter can significantly reduce these compounds at your tap.
What water filter works best for Gilbert?
A reverse osmosis system provides the highest reduction for PFAS, arsenic, and nitrates. Take our free 2-minute quiz to find the right system.
Data sourced from EPA SDWIS and UCMR5. PureWaterGuys.com is not affiliated with any municipal water utility.