56002
Mankato, MN
MANKATO

Is tap water in Mankato (ZIP 56002) safe to drink?

Higher concern
Last tested: February 2024
Source: EPA UCMR5 utility monitoring plus EPA Water Quality Portal well sampling (mapped to nearest ZIP). Last tested February 2024.

The short answer for Mankato (ZIP 56002)

Mankato tap water has 3 contaminants above EPA guidelines, including lithium at 3.1× the limit (tested July 2023). See the full compound-by-compound breakdown and filter recommendations.

The health risk for Mankato

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 2023
0 µg/L 10 µg/L 50 µg/L
30.900 µg/L
Detected
µg/L
10 µg/L
EPA limit
guideline
209% above limit
Comparison
vs. guideline
EPA limit: 10 µg/L | Your water: 30.900 µg/L
Certified Filters for Mankato Tap Water

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

Water filter recommendation for Mankato 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.
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Most elevated compounds
Compound Measurement EPA Limit Comparison
lithium
Tested: July 2023 · Well #11 Entry Point		 30.900 µg/L 10 µg/L 209% above limit
lithium
Tested: October 2023 · TREATMENT PLANT #1		 30.500 µg/L 10 µg/L 205% above limit
Lithium
Tested: October 2023 · 686897		 12.700 µg/L 10 µg/L 27% above limit
View all tested compounds

686897 · Tested: Multiple dates

Compound Measurement EPA Limit Comparison
Lithium 12.700 µg/L 10 µg/L 27% above limit
Arsenic 1.100 µg/L 10 µg/L 11% of limit
Lead 0.131 µg/L 15 µg/L 0.9% of limit
Nitrate + Nitrite 0.020 mg/L 1E+04 mg/L 0.0% of limit
Alkalinity, total 285.000 mg/L — —
Aluminum 6.630 µg/L — —
Barium 12.400 µg/L — —
Boron 96.000 µg/L — —
Bromide 0.110 mg/L — —
Calcium 5.720 mg/L — —
Chloride 34.800 mg/L — —
Fluoride 0.170 mg/L — —
Iron 3.450 mg/L — —
Magnesium 46.000 mg/L — —
Manganese 83.600 µg/L — —
Oxidation reduction potenti... -24.000 mV — —
Phosphorus 0.441 mg/L — —
Potassium 16.600 mg/L — —
Rubidium 1.500 µg/L — —
Sodium 44.100 mg/L — —
Strontium 7.820 µg/L — —
Sulfate 140.000 mg/L — —
Zinc 18.400 µg/L — —

TREATMENT PLANT #1 · Tested: Multiple dates

Compound Measurement EPA Limit Comparison
lithium 30.500 µg/L 10 µg/L 205% 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 #11 Entry Point · Tested: July 2023

Compound Measurement EPA Limit Comparison
lithium 30.900 µg/L 10 µg/L 209% 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 56002

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 56002 Tap Water

What contaminants are above EPA limits in ZIP 56002?

ZIP 56002 has 3 contaminants above EPA health guidelines in the latest available data, including lithium at 3.1x the EPA guideline. The full table on this page lists every tested compound and its measured level.

Will boiling ZIP 56002 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 56002?

Public records identify MANKATO as a primary water system associated with ZIP 56002. Service boundaries can vary by address, so confirm exact service with the utility.

When was ZIP 56002 tap water last tested?

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

Where can I find the official water quality report for ZIP 56002?

Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact MANKATO or visit their website for the latest official report covering ZIP 56002. 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 February 2024
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 Mankato → see certified filters