Is tap water in Duluth (55803) safe to drink?
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The short answer for Duluth (55803)
Recent public test data for Rice Lake is limited. Check local utility reports and monitor updated EPA records for the latest water quality information.
The health risk for Rice Lake
No specific notes available.
Certified filtration options for common tap-water contaminants.
No compounds above or close to EPA limits in available data.
View all tested compounds
685292 · Tested: Multiple dates
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Lithium | 3.700 µg/L | 10 µg/L | 37% of limit |
| Arsenic | 2.570 µg/L | 10 µg/L | 26% of limit |
| Lead | 0.253 µg/L | 15 µg/L | 2% of limit |
| Nitrate + Nitrite | 0.010 mg/L | 1E+04 mg/L | 0.0% of limit |
| Alkalinity, total | 213.000 mg/L | — | — |
| Aluminum | 89.700 µg/L | — | — |
| Barium | 42.700 µg/L | — | — |
| Boron | 19.600 µg/L | — | — |
| Bromide | 0.020 mg/L | — | — |
| Calcium | 49.100 mg/L | — | — |
| Chloride | 2.340 mg/L | — | — |
| Deuterium, delta | -75.760 0/00 | — | — |
| Fluoride | 0.200 mg/L | — | — |
| Iron | 0.351 mg/L | — | — |
| Magnesium | 18.200 mg/L | — | — |
| Manganese | 115.000 µg/L | — | — |
| Oxidation reduction potenti... | -184.000 mV | — | — |
| Oxygen Delta 18 | -11.190 0/00 | — | — |
| Phosphorus | 0.019 mg/L | — | — |
| Potassium | 1.420 mg/L | — | — |
| Rubidium | 0.453 µg/L | — | — |
| Sodium | 5.620 mg/L | — | — |
| Strontium | 111.000 µg/L | — | — |
| Sulfate | 12.200 mg/L | — | — |
| Tritium | 2.400 T.U. | — | — |
| Zinc | 5.680 µg/L | — | — |
707169 · Tested: Multiple dates
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Lithium | 2.130 µg/L | 10 µg/L | 21% of limit |
| Arsenic | 0.330 µg/L | 10 µg/L | 3% of limit |
| Chromium | 1.060 µg/L | 100 µg/L | 1% of limit |
| Nitrate + Nitrite | 0.110 mg/L | 1E+04 mg/L | 0.0% of limit |
| Alkalinity, total | 28.000 mg/L | — | — |
| Aluminum | 32.700 µg/L | — | — |
| Barium | 7.350 µg/L | — | — |
| Boron | 12.200 µg/L | — | — |
| Bromide | 0.016 mg/L | — | — |
| Calcium | 7.690 mg/L | — | — |
| Chloride | 0.820 mg/L | — | — |
| Deuterium, delta | -80.750 0/00 | — | — |
| Fluoride | 0.100 mg/L | — | — |
| Iron | 26.400 µg/L | — | — |
| Magnesium | 2.410 mg/L | — | — |
| Manganese | 12.600 µg/L | — | — |
| Nickel | 1.120 µg/L | — | — |
| Organic carbon | 3.300 mg/L | — | — |
| Oxidation reduction potenti... | 19.000 mV | — | — |
| Oxygen Delta 18 | -11.760 0/00 | — | — |
| Phosphorus | 0.005 mg/L | — | — |
| Potassium | 0.620 mg/L | — | — |
| Rubidium | 0.487 µg/L | — | — |
| Sodium | 1.760 mg/L | — | — |
| Strontium | 26.100 µg/L | — | — |
| Sulfate | 2.860 mg/L | — | — |
| Tritium | 3.300 T.U. | — | — |
| Zinc | 19.100 µg/L | — | — |
Water utilities serving ZIP 55803
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- 685292 (WQP)No recent federal sampling
- 707169 (WQP)No recent federal sampling
Frequently Asked Questions about ZIP 55803 Tap Water
What's in ZIP 55803 tap water?
Recent public test data for ZIP 55803 is limited. Check your local utility's Consumer Confidence Report for the most current information.
Who provides tap water in ZIP 55803?
Public records identify 685292 (WQP) as a primary water system associated with ZIP 55803. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 55803 tap water last tested?
The most recent test date used in this report is Unknown. EnviroClarity last refreshed this page on 2026-05-05.
Where can I find the official water quality report for ZIP 55803?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact 685292 (WQP) or visit their website for the latest official report covering ZIP 55803. The EPA also maintains a national CCR locator.
Do I still need a water filter in ZIP 55803?
Even when EPA-tracked compounds are within limits, some households use a certified filter for taste, odor, or to add a margin against trace contaminants below the reporting limit. Match any filter's certifications (NSF/ANSI 42, 53, 58, or P473) to the specific compounds you care about.
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Nearby ZIP reports
Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.