Lake Montezuma, AZ

ARIZONA WATER CO - RIMROCK

Is tap water in Lake Montezuma (ZIP 86342) safe to drink?

Q: What contaminants are above EPA limits in ZIP 86342?

ZIP 86342 has 5 contaminants above EPA health guidelines in the latest available data, including lithium at 21.6x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Q: Will boiling ZIP 86342 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.

Q: 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.

Q: Who provides tap water in ZIP 86342?

Public records identify ARIZONA WATER CO - RIMROCK as a primary water system associated with ZIP 86342. Service boundaries can vary by address, so confirm exact service with the utility.

Q: When was ZIP 86342 tap water last tested?

The most recent test date used in this report is October 2023. EnviroClarity last refreshed this page on 2026-05-04.

Q: Where can I find the official water quality report for ZIP 86342?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact ARIZONA WATER CO - RIMROCK or visit their website for the latest official report covering ZIP 86342. The EPA also maintains a national CCR locator.

Source: Official EPA UCMR5 federal monitoring data. Last tested October 2023.

The short answer for Lake Montezuma (ZIP 86342)

Lake Montezuma tap water has 5 contaminants above EPA guidelines, including lithium at 21.6× the limit (tested August 2023). See the full compound-by-compound breakdown and filter recommendations.

The health risk for Lake Montezuma

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) August 2023

0 µg/L 10 µg/L 500 µg/L

216.000 µg/L

Detected

µg/L

10 µg/L

EPA limit

guideline

2060% above limit

Comparison

vs. guideline

EPA limit: 10 µg/L | Your water: 216.000 µg/L

Certified Filters for Lake Montezuma Tap Water

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

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Most elevated compounds

Compound	Measurement	EPA Limit	Comparison
lithium Tested: August 2023 · EPDS 003	216.000 µg/L	10 µg/L	2060% above limit
lithium Tested: August 2023 · EPDS 002	150.000 µg/L	10 µg/L	1400% above limit
lithium Tested: August 2023 · EPDS 005	149.000 µg/L	10 µg/L	1390% above limit
lithium Tested: August 2023 · EPDS 006	111.000 µg/L	10 µg/L	1010% above limit
lithium Tested: August 2023 · EPDS 001	99.100 µg/L	10 µg/L	891% above limit

View all tested compounds

EPDS 001 · Tested: August 2023

Compound	Measurement	EPA Limit	Comparison
lithium	99.100 µg/L	10 µg/L	891% 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

EPDS 002 · Tested: Multiple dates

Compound	Measurement	EPA Limit	Comparison
lithium	150.000 µg/L	10 µg/L	1400% 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

EPDS 003 · Tested: August 2023

Compound	Measurement	EPA Limit	Comparison
lithium	216.000 µg/L	10 µg/L	2060% 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

EPDS 005 · Tested: August 2023

Compound	Measurement	EPA Limit	Comparison
lithium	149.000 µg/L	10 µg/L	1390% 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

EPDS 006 · Tested: August 2023

Compound	Measurement	EPA Limit	Comparison
lithium	111.000 µg/L	10 µg/L	1010% 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 86342

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

ARIZONA WATER CO - RIMROCKAction advised

Modeled boundaries are shown with a dashed outline.

Frequently Asked Questions about ZIP 86342 Tap Water

What contaminants are above EPA limits in ZIP 86342?

ZIP 86342 has 5 contaminants above EPA health guidelines in the latest available data, including lithium at 21.6x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Will boiling ZIP 86342 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 86342?

Public records identify ARIZONA WATER CO - RIMROCK as a primary water system associated with ZIP 86342. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 86342 tap water last tested?

The most recent test date used in this report is October 2023. EnviroClarity last refreshed this page on 2026-05-04.

Where can I find the official water quality report for ZIP 86342?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact ARIZONA WATER CO - RIMROCK or visit their website for the latest official report covering ZIP 86342. The EPA also maintains a national CCR locator.

Primary source EPA UCMR5 (2023-2025)

Guideline source EPA drinking water standard (lithium: 10 µg/L)

Last tested October 2023

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 Lake Montezuma → see certified filters