June 14, 2026
Prescott, 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 | 6.64 ppb | 58.9 ppb | 10 ppb | 66% |
| Thallium | 1.13 ppb | 1.73 ppb | 2 ppb | 57% |
| Trichloroethylene (TCE)EPA health goal: zero | 2.75 ppb | 3.5 ppb | 5 ppb | 55% |
| Antimony | 2.54 ppb | 2.54 ppb | 6 ppb | 42% |
| LeadEPA health goal: zero | 5.85 ppb | 22.6 ppb | 15 ppb (action level) | 39% |
| UraniumEPA health goal: zero | 6.59 ppb | 19.7 ppb | 30 ppb | 22% |
| Fluoride | 815 ppb | 1100 ppb | 4000 ppb | 20% |
| Radium (combined)EPA health goal: zero | 0.838 pCi/L | 1.2 pCi/L | 5 pCi/L | 17% |
| Tetrachloroethylene (PCE)EPA health goal: zero | 0.84 ppb | 0.92 ppb | 5 ppb | 17% |
| Nitrate | 1400 ppb | 2780 ppb | 10000 ppb | 14% |
| Nitrate + nitrite | 1340 ppb | 1700 ppb | 10000 ppb | 13% |
| Gross alpha radioactivityEPA health goal: zero | 1.42 pCi/L | 3.9 pCi/L | 15 pCi/L | 9% |
| Selenium | 3.98 ppb | 4.98 ppb | 50 ppb | 8% |
| Chromium (total) | 6.97 ppb | 13 ppb | 100 ppb | 7% |
| Total trihalomethanes (TTHMs) | 4.6 ppb | 15 ppb | 80 ppb | 6% |
| Copper | 45.1 ppb | 114 ppb | 1300 ppb (action level) | 3% |
| Haloacetic acids (HAA5) | 1.53 ppb | 2 ppb | 60 ppb | 3% |
| Barium | 15.4 ppb | 37.2 ppb | 2000 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), 2,4-D, Alachlor, Asbestos, Atrazine, Benzene, Benzo(a)pyrene, Beryllium, Cadmium, Carbofuran, Carbon tetrachloride, Chlordane, Chlorobenzene, Cyanide, DBCP, DEHA (adipate), DEHP (phthalate), Dalapon, Dichloromethane, Dinoseb, Dioxin (2,3,7,8-TCDD), Diquat, Endothall, Endrin, Ethylbenzene, Ethylene dibromide (EDB), Glyphosate, Heptachlor, Heptachlor epoxide, Hexachlorobenzene, Hexachlorocyclopentadiene, Lindane, Mercury (inorganic), Methoxychlor, Nitrite, Oxamyl, PCBs, Pentachlorophenol, Picloram, Simazine, Styrene, Toluene, Toxaphene, Vinyl chloride, Xylenes (total), 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: City of Prescott
Population Served: 42,217 residents
Data Sources: EPA SDWIS + EPA UCMR5
Report Year: 2026
Prescott, Arizona drinking water is supplied by City of Prescott. This report summarizes health-based violations and PFAS detections from federal EPA databases.
EPA Health-Based Violation History
The following contaminants exceeded EPA MCLs at this utility since 2010:
| Contaminant | Violation Years | Filter Solution |
|---|---|---|
| Groundwater Rule | 2025 | Water Filters |
Source: EPA SDWIS, updated quarterly. Health-based violations only.
PFAS "Forever Chemical" Detections
Multiple PFAS compounds were detected during EPA UCMR5 testing (2023-2025).
| PFAS Compound | Level Detected | Solution |
|---|---|---|
| PFOA | 0.0100 ug/L | PFAS Filters |
| PFOS | 0.0080 ug/L | PFAS Filters |
| PFBS | 0.0070 ug/L | PFAS Filters |
| PFHxS | 0.0050 ug/L | PFAS Filters |
| PFPeA | 0.0038 ug/L | PFAS Filters |
| PFHxA | 0.0035 ug/L | PFAS Filters |
| PFHpA | 0.0030 ug/L | PFAS Filters |
Source: EPA UCMR5. Levels in ug/L. 1 ug/L = 1,000 ppt.
Should You Filter Your Prescott Water?
Prescott has a 2025 groundwater violation and 7 PFAS compounds detected. Filtration is strongly recommended.
Protect Your Prescott Home Water
PureWaterGuys.com carries PFAS-certified filtration systems. We ship to all Arizona addresses.
Shop PFAS Filters →Take the Water QuizFAQ
Is Prescott tap water safe to drink?
City of Prescott had a groundwater rule violation in 2025 and 7 PFAS compounds detected in recent testing.
Does Prescott water have PFAS?
Yes -- PFOA, PFOS, PFBS, and 4 more compounds were detected. A reverse osmosis system is recommended.
What filter works best for Prescott?
Reverse osmosis provides the highest reduction for PFAS. Take our quiz for a personalized recommendation.
Data sourced from EPA SDWIS and UCMR5. PureWaterGuys.com is not affiliated with any municipal water utility.
Filters for Prescott, AZ Water Issues
Based on contaminants detected in this report, these systems are worth considering:
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