85602
Benson, AZ
Cochise County · Sierra Vista-Douglas, AZ metro area
BENSON, CITY OF WATER SYSTEM

Is Benson tap water safe to drink?

Higher concern
Last tested: August 2024
Source: EPA UCMR5 utility monitoring plus EPA Water Quality Portal well sampling (mapped to nearest ZIP). Last tested August 2024.
CDPs:
Townships:
  • Benson CCD, AZ
  • Tucson CCD, AZ
Neighborhood:
  • Benson

The short answer for Benson

Benson tap water has 4 contaminants above EPA guidelines, including lithium at 2.2× the limit (tested July 2024). See the full compound-by-compound breakdown and filter recommendations.

The health risk for Benson

lithium 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.
lithium concentration (µg/L) July 2024
0 µg/L 10 µg/L 50 µg/L
22.000 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
120% above limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 22.000 µg/L
Certified Filters for Benson Tap Water

lithium was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.

Water filter recommendation for Benson tap water: Epic Pure XP Water Filter Pitcher
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
Best for renters or quick setup. No installation needed.
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Most elevated compounds
Compound Measurement EPA Limit Comparison
lithium
Tested: July 2024 · Well 55-533251-302		 22.000 µg/L 10 µg/L 120% above limit
lithium
Tested: July 2024 · Well 55-536791-291		 22.000 µg/L 10 µg/L 120% above limit
lithium
Tested: July 2024 · Well 55-216308		 20.000 µg/L 10 µg/L 100% above limit
lithium
Tested: July 2024 · Well 55-537823		 14.000 µg/L 10 µg/L 40% above limit
Arsenic
Tested: February 2024 · BENSON WATER CO.		 8.300 µg/L 10 µg/L 83% of limit
View all tested compounds

Well 55-216308 · Tested: July 2024

Compound Measurement EPA Limit Comparison
lithium 20.000 µg/L 10 µg/L 100% 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

Well 55-533251-302 · Tested: July 2024

Compound Measurement EPA Limit Comparison
lithium 22.000 µg/L 10 µg/L 120% 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

Well 55-536791-291 · Tested: Multiple dates

Compound Measurement EPA Limit Comparison
lithium 22.000 µg/L 10 µg/L 120% 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

Well 55-537823 · Tested: July 2024

Compound Measurement EPA Limit Comparison
lithium 14.000 µg/L 10 µg/L 40% 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

BENSON WATER CO. · Tested: February 2024

Compound Measurement EPA Limit Comparison
Arsenic 8.300 µg/L 10 µg/L 83% of limit
Uranium 2.700 µg/L 30 µg/L 9% of limit
Lead 0.690 µg/L 15 µg/L 5% of limit
Copper 9.500 µg/L 1300 µg/L 0.7% of limit
Nitrate 0.530 mg/L 1E+04 mg/L 0.0% of limit
Alkalinity, bicarbonate 180.000 mg/L — —
Alkalinity, total 180.000 mg/L — —
Barium 620.000 µg/L — —
Calcium 34.000 mg/L — —
Chloride 4.600 mg/L — —
Hardness, carbonate 140.000 mg/L — —
Langelier Saturation Index 0.150 None — —
Magnesium 14.000 mg/L — —
Sodium 27.000 mg/L — —
Sulfate 9.900 mg/L — —
Total dissolved solids 220.000 mg/L — —

Water utilities serving ZIP 85602

Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 85602 Tap Water

What contaminants are above EPA limits in ZIP 85602?

ZIP 85602 has 4 contaminants above EPA health guidelines in the latest available data, including lithium at 2.2x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Will boiling ZIP 85602 tap water remove lithium?

No. Boiling tap water does not remove lithium. Lithium is a dissolved mineral, so heat does not break it down and evaporation can actually concentrate it. Reverse osmosis (NSF/ANSI 58) is the most reliable at-home option for reducing lithium.

Do basic pitcher filters remove lithium?

Standard pitcher filters are not certified to reduce lithium. Reverse osmosis (NSF/ANSI 58) is the most widely available home option for reducing lithium in drinking water.

Who provides tap water in ZIP 85602?

Public records identify BENSON, CITY OF WATER SYSTEM as a primary water system associated with ZIP 85602. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 85602 tap water last tested?

The most recent test date used in this report is August 2024. EnviroClarity last refreshed this page on 2026-05-04.

Where can I find the official water quality report for ZIP 85602?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact BENSON, CITY OF WATER SYSTEM or visit their website for the latest official report covering ZIP 85602. The EPA also maintains a national CCR locator.

Primary source EPA UCMR5 (2023-2025) + EPA WQP (well monitoring near ZIP)
Guideline source EPA drinking water standard (lithium: 10 µg/L)
Last tested August 2024
Last page update 2026-05-04

Check another ZIP code

    Nearby ZIP reports

    Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.

    Protect your water in Benson → see certified filters