85621
Nogales, AZ
Santa Cruz County · Nogales, AZ metro area
NOGALES CITY OF
Is Nogales tap water safe to drink?
Source: EPA UCMR5 utility monitoring plus EPA Water Quality Portal well sampling (mapped to nearest ZIP). Last tested June 2025.
Township:
- Nogales CCD, AZ
Neighborhood:
- Nogales
The short answer for Nogales
Nogales tap water has 6 contaminants above EPA guidelines, including Benzene at 380.0× the limit (tested June 2023). See the full compound-by-compound breakdown and filter recommendations.
The health risk for Nogales
Benzene has been detected above EPA limits in this water system's recent tests. A certified filter designed for this contaminant type is strongly recommended.
- lithium above limit.
Benzene concentration (µg/L)
June 2023
0 µg/L
5 µg/L
2000 µg/L
1900.000 µg/L
Detected
µg/L
5 µg/L
EPA limit
guideline
37900% above limit
Comparison
vs. guideline
EPA limit: 5 µg/L | Your water: 1900.000 µg/L
Certified Filters for Nogales Tap Water
Benzene was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
NSF/ANSI 42, 53, 401 & P473Removes 99.99% PFASMade in USABPA-free
PFAS detected in 85621 · What you can do
Here's what actually removes PFAS from your water
The right filter eliminates PFAS at the tap. But not all filters do - and the type you choose matters for your home.
Common pitchers like Brita do not remove PFAS. You need a filter independently certified to NSF P473 (for pitcher filters) or NSF/ANSI 58 (for reverse osmosis systems). All three options below carry the relevant certification.
Certified PFAS filter types - how they differ
Certified Pitcher
Removes PFAS (99%+)
No installation, works today
Lowest upfront cost (~$70)
Must refill manually
Filters only what you pour in - not cooking water
Reverse Osmosis More complete
Removes PFAS + lead, arsenic, nitrates & more
Always-on - no refilling ever
Noticeably better tasting water
Filters drinking & cooking water automatically
Higher upfront cost ($200-$400)
Choose your option
Most elevated compounds
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Benzene Tested: June 2023 · 82356 |
1900.000 µg/L | 5 µg/L | 37900% above limit |
| lithium Tested: June 2024 · Meado Hills Well #3 |
56.300 µg/L | 10 µg/L | 463% above limit |
| lithium Tested: June 2024 · Meadow Hills Well #1 |
54.900 µg/L | 10 µg/L | 449% above limit |
| lithium Tested: June 2025 · Coronado Well |
39.700 µg/L | 10 µg/L | 297% above limit |
| lithium Tested: June 2024 · Kino Springs Water Plant #1 |
12.200 µg/L | 10 µg/L | 22% above limit |
View all tested compounds
82356 · Tested: Multiple dates
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Benzene | 1900.000 µg/L | 5 µg/L | 37900% above limit |
| Vinyl chloride | 1.700 µg/L | 2 µg/L | 85% of limit |
| 1,1-Dichloroethane | 1.700 µg/L | 7 µg/L | 24% of limit |
| Toluene | 220.000 µg/L | 1000 µg/L | 22% of limit |
| 1,2-Dichloroethane | 0.600 µg/L | 5 µg/L | 12% of limit |
| Chromium | 6.600 µg/L | 100 µg/L | 7% of limit |
| Chloroform | 0.120 µg/L | 80 µg/L | 0.1% of limit |
| 1,1,2,2-Tetrachloroethane | 0.740 µg/L | — | — |
| 1,1,2-Trichloroethane | 110.000 µg/L | — | — |
| 1,1-Dichloroethylene | 320.000 µg/L | — | — |
| 1,2,3-Trimethylbenzene | 22.000 µg/L | — | — |
| 1,2,4-Trimethylbenzene | 380.000 µg/L | — | — |
| 1,2-Dibromo-3-chloropropane | 5.600 µg/L | — | — |
| 1,3,5-Trimethylbenzene | 25.000 µg/L | — | — |
| 2-Hexanone | 47.000 µg/L | — | — |
| Acetone | 45.000 µg/L | — | — |
| Cadmium | 2.900 µg/L | — | — |
| Carbon disulfide | 3.100 µg/L | — | — |
| Chloroethane | 0.720 µg/L | — | — |
| Chloromethane | 1.000 µg/L | — | — |
| cis-1,2-Dichloroethylene | 1.500 µg/L | — | — |
| Cumene | 28.000 µg/L | — | — |
| Cyclohexane | 4.750 µg/L | — | — |
| Dichlorobromomethane | 0.170 µg/L | — | — |
| Ethanol | 73.500 µg/L | — | — |
| Ethylbenzene | 1200.000 µg/L | — | — |
| Hexane | 76.000 µg/L | — | — |
| m-Dichlorobenzene | 0.250 µg/L | — | — |
| Methyl bromide | 4.000 µg/L | — | — |
| Methyl ethyl ketone | 98.000 µg/L | — | — |
| Methyl iodide | 1.400 µg/L | — | — |
| Methyl isobutyl ketone | 17.000 µg/L | — | — |
| Methyl tert-butyl ether | 51.000 µg/L | — | — |
| Methylcyclohexane | 0.727 µg/L | — | — |
| Methylene chloride | 0.730 µg/L | — | — |
| n-Butylbenzene | 0.940 µg/L | — | — |
| n-Propylbenzene | 240.000 µg/L | — | — |
| Naphthalene | 740.000 µg/L | — | — |
| Nickel | 99.000 µg/L | — | — |
| p-Cymene | 7.600 µg/L | — | — |
| p-Dichlorobenzene | 0.240 µg/L | — | — |
| p-Ethyltoluene | 127.000 µg/L | — | — |
| Propylene | 4.170 µg/L | — | — |
| sec-Butylbenzene | 13.000 µg/L | — | — |
| Tetrachloroethylene | 2.200 µg/L | — | — |
| Tribromomethane | 0.660 µg/L | — | — |
| Trichloroethylene | 5.700 µg/L | — | — |
| Trichlorotrifluoroethane | 0.772 µg/L | — | — |
| Xylene | 15000.000 µg/L | — | — |
Coronado Well · Tested: June 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | 39.700 µg/L | 10 µg/L | 297% above limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Kino Springs Water Plant #1 · Tested: June 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | 12.200 µg/L | 10 µg/L | 22% above limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Meado Hills Well #3 · Tested: June 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | 56.300 µg/L | 10 µg/L | 463% above limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Meadow Hills Well #1 · Tested: June 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | 54.900 µg/L | 10 µg/L | 449% above limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Santa Cruz Water Plant Site · Tested: June 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | 11.300 µg/L | 10 µg/L | 13% above limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Water utilities serving ZIP 85621
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- NOGALES CITY OFAction advised
Modeled boundaries are shown with a dashed outline.
Frequently Asked Questions about ZIP 85621 Tap Water
What contaminants are above EPA limits in ZIP 85621?
ZIP 85621 has 6 contaminants above EPA health guidelines in the latest available data, including Benzene at 380.0x the EPA guideline. The full table on this page lists every tested compound and its measured level.
Will boiling ZIP 85621 tap water remove Benzene?
Boiling tap water can kill many pathogens, but it does not remove most chemical contaminants tracked in EPA monitoring. Several dissolved contaminants can even concentrate as water evaporates. For the chemical contaminants reported in ZIP 85621, a certified filter is more reliable.
Do basic pitcher filters remove Benzene?
Basic pitcher filters are typically rated for chlorine, taste, and odor (NSF/ANSI 42), not for the broader list of contaminants tracked in EPA monitoring. Match the certification (NSF/ANSI 42, 53, 58, or P473) to the specific compounds listed in this report before assuming a filter helps.
Who provides tap water in ZIP 85621?
Public records identify NOGALES CITY OF as a primary water system associated with ZIP 85621. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 85621 tap water last tested?
The most recent test date used in this report is June 2025. EnviroClarity last refreshed this page on 2026-05-04.
Where can I find the official water quality report for ZIP 85621?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact NOGALES CITY OF or visit their website for the latest official report covering ZIP 85621. The EPA also maintains a national CCR locator.
Check another ZIP code
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Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.