Is tap water in Canosia (55811) safe to drink?
- Canosia, MN
The short answer for Canosia (55811)
Hermantown tap water has 4 detected contaminants, currently below EPA limits (tested October 2023). Lithium measured closest to the threshold. See the full compound-by-compound report.
The health risk for Hermantown
- PFAS or other chemicals detected; no confirmed exceedances in multiple samples.
Lithium was detected below EPA limits. A certified filter can still add an extra layer of protection.
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.
No compounds above or close to EPA limits in available data.
View all tested compounds
633703 · Tested: October 2023
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Lithium | 1.980 µg/L | 10 µg/L | 20% of limit |
| Arsenic | 1.470 µg/L | 10 µg/L | 15% of limit |
| Lead | 0.400 µg/L | 15 µg/L | 3% of limit |
| Nitrate + Nitrite | 0.010 mg/L | 1E+04 mg/L | 0.0% of limit |
| Alkalinity, total | 150.000 mg/L | — | — |
| Aluminum | 7.160 µg/L | — | — |
| Barium | 34.500 µg/L | — | — |
| Boron | 47.200 µg/L | — | — |
| Bromide | 0.009 mg/L | — | — |
| Calcium | 27.800 mg/L | — | — |
| Chloride | 22.300 mg/L | — | — |
| Deuterium, delta | -74.050 0/00 | — | — |
| Fluoride | 0.440 mg/L | — | — |
| Iron | 1.340 mg/L | — | — |
| Magnesium | 18.900 mg/L | — | — |
| Manganese | 40.800 µg/L | — | — |
| Oxidation reduction potenti... | -191.000 mV | — | — |
| Oxygen Delta 18 | -10.800 0/00 | — | — |
| Phosphorus | 0.044 mg/L | — | — |
| Potassium | 1.100 mg/L | — | — |
| Rubidium | 0.399 µg/L | — | — |
| Sodium | 8.250 mg/L | — | — |
| Strontium | 125.000 µg/L | — | — |
| Sulfate | 3.960 mg/L | — | — |
| Tritium | 9.200 T.U. | — | — |
| Zinc | 19.600 µg/L | — | — |
Interconnect - Duluth · Tested: November 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | <9.000 µg/L | 10 µg/L | Below 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 55811
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- HERMANTOWNSome concern
Frequently Asked Questions about ZIP 55811 Tap Water
What's in ZIP 55811 tap water?
ZIP 55811 has 4 detected contaminants below EPA limits in this dataset. Lithium measured closest to its guideline.
Will boiling ZIP 55811 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 55811?
Public records identify HERMANTOWN as a primary water system associated with ZIP 55811. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 55811 tap water last tested?
The most recent test date used in this report is November 2024. EnviroClarity last refreshed this page on 2026-05-05.
Where can I find the official water quality report for ZIP 55811?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact HERMANTOWN or visit their website for the latest official report covering ZIP 55811. The EPA also maintains a national CCR locator.
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.