Is Thief River Falls tap water safe to drink?
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- Thief River Falls
The short answer for Thief River Falls
Thief River Falls tap water has 2 detected contaminants, currently below EPA limits (tested October 2023). PFBA measured closest to the threshold. See the full compound-by-compound report.
The health risk for Thief River Falls
- PFAS or other chemicals detected; no confirmed exceedances in multiple samples.
PFBA (a PFAS 'forever chemical') 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
TREATMENT PLANT · Tested: October 2023
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| PFBA | 0.012 µg/L | 6 µg/L | 0.2% of limit |
| 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 |
| 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 |
USGS NW MN Study # 22 · Tested: Multiple dates
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Nitrate + Nitrite | 1.300 mg/L | 1E+04 mg/L | 0.0% of limit |
| Aminopyralid | 40.600 ng/L | — | — |
| Bromide | 0.013 mg/L | — | — |
| Chloride | 3.650 mg/L | — | — |
| Clopyralid | 141.000 ng/L | — | — |
| Clothianidin | 8.480 ng/L | — | — |
| Imidacloprid | 5.970 ng/L | — | — |
| Metolachlor ESA | 722.000 ng/L | — | — |
Water utilities serving ZIP 56701
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- THIEF RIVER FALLSSome concern
Frequently Asked Questions about ZIP 56701 Tap Water
What's in ZIP 56701 tap water?
ZIP 56701 has 2 detected contaminants below EPA limits in this dataset. PFBA measured closest to its guideline.
Will boiling ZIP 56701 tap water remove PFBA?
No. Boiling does not remove PFAS, and the compounds can actually become more concentrated as water evaporates. To reduce PFAS at home, use a filter independently certified to NSF/ANSI P473 (activated-carbon pitcher or under-sink) or NSF/ANSI 58 (reverse osmosis).
Do basic pitcher filters remove PFBA?
Most basic pitcher filters are only certified to NSF/ANSI 42 or 53, which do not cover PFAS. Look for a filter independently certified to NSF/ANSI P473 (activated-carbon pitcher or under-sink) or NSF/ANSI 58 (reverse osmosis) on the spec sheet.
Who provides tap water in ZIP 56701?
Public records identify THIEF RIVER FALLS as a primary water system associated with ZIP 56701. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 56701 tap water last tested?
The most recent test date used in this report is October 2023. EnviroClarity last refreshed this page on 2026-05-05.
Where can I find the official water quality report for ZIP 56701?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact THIEF RIVER FALLS or visit their website for the latest official report covering ZIP 56701. 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.