Is St. John tap water safe to drink?
- North Rolette UT, ND
- Saint John, ND
The short answer for St. John
St. John tap water has lithium above EPA guidelines at 7.3× the limit (tested October 2024). See the full report with all tested compounds and filter options.
The health risk for St. John
- lithium above limit.
lithium was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.
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.
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium Tested: October 2024 · Belcourt-Turtle Mountain TP |
72.600 µg/L | 10 µg/L | 626% above limit |
View all tested compounds
Belcourt-Turtle Mountain TP · Tested: October 2024
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | 72.600 µg/L | 10 µg/L | 626% 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 58369
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- BELCOURT-TURTLE MTN RURAL WATER SYSTEMAction advised
Frequently Asked Questions about ZIP 58369 Tap Water
What contaminants are above EPA limits in ZIP 58369?
ZIP 58369 has lithium above EPA health guidelines in the latest available data at 7.3x the EPA guideline. The full table on this page lists every tested compound and its measured level.
Will boiling ZIP 58369 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 58369?
Public records identify BELCOURT-TURTLE MTN RURAL WATER SYSTEM as a primary water system associated with ZIP 58369. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 58369 tap water last tested?
The most recent test date used in this report is October 2024. EnviroClarity last refreshed this page on 2026-05-05.
Where can I find the official water quality report for ZIP 58369?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact BELCOURT-TURTLE MTN RURAL WATER SYSTEM or visit their website for the latest official report covering ZIP 58369. 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.