48723

Caro, MI

Tuscola County

CARO, CITY OF

Is Caro tap water safe to drink?

Source: Official EPA UCMR5 federal monitoring data. Last tested November 2025.

Townships:

Almer, MI
Indianfields, MI
Wells, MI
Ellington, MI
Juniata, MI

Neighborhood:

Caro

The short answer for Caro

Caro tap water has 2 contaminants above EPA guidelines, including lithium at 1.9× the limit (tested November 2025). See the full compound-by-compound breakdown and filter recommendations.

The health risk for Caro

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) November 2025

0 µg/L 10 µg/L 20 µg/L

19.000 µg/L

Detected

µg/L

10 µg/L

EPA limit

guideline

90% above limit

Comparison

vs. guideline

EPA limit: 10 µg/L | Your water: 19.000 µg/L

Certified Filters for Caro Tap Water

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

Water filter recommendation for Caro tap water: Epic Pure XP Water Filter Pitcher

Pitcher filter

Epic Pure XP Water Filter Pitcher

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NSF/ANSI 42, 53, 401 & P473Removes 99.99% PFASMade in USABPA-free

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Most elevated compounds

Compound	Measurement	EPA Limit	Comparison
lithium Tested: November 2025 · Wellhouse 2 Treatment Plant	19.000 µg/L	10 µg/L	90% above limit
lithium Tested: November 2025 · Wellhouse 1 Treatment Plant	13.000 µg/L	10 µg/L	30% above limit
lithium Tested: May 2025 · Wellhouse 5A Treatment Plant	10.000 µg/L	10 µg/L	100% of limit
lithium Tested: May 2025 · Arsenic Treatment Plant (Well 7)	10.000 µg/L	10 µg/L	100% of limit

View all tested compounds

Wellhouse 1 Treatment Plant · Tested: November 2025

Compound	Measurement	EPA Limit	Comparison
lithium	13.000 µg/L	10 µg/L	30% 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

Wellhouse 2 Treatment Plant · Tested: November 2025

Compound	Measurement	EPA Limit	Comparison
lithium	19.000 µg/L	10 µg/L	90% 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

Arsenic Treatment Plant (Well 7) · Tested: Multiple dates

Compound	Measurement	EPA Limit	Comparison
lithium	10.000 µg/L	10 µg/L	100% of 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

Wellhouse 5A Treatment Plant · Tested: May 2025

Compound	Measurement	EPA Limit	Comparison
lithium	10.000 µg/L	10 µg/L	100% of 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 48723

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

CARO, CITY OFAction advised

Modeled boundaries are shown with a dashed outline. Outlines appear when service-area boundary data is available for this ZIP.

Frequently Asked Questions about ZIP 48723 Tap Water

What contaminants are above EPA limits in ZIP 48723?

ZIP 48723 has 2 contaminants above EPA health guidelines in the latest available data, including lithium at 1.9x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Will boiling ZIP 48723 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 48723?

Public records identify CARO, CITY OF as a primary water system associated with ZIP 48723. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 48723 tap water last tested?

The most recent test date used in this report is November 2025. EnviroClarity last refreshed this page on 2026-05-05.

Where can I find the official water quality report for ZIP 48723?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact CARO, CITY OF or visit their website for the latest official report covering ZIP 48723. 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 November 2025

Last page update 2026-05-05

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 Caro → see certified filters