Is Colstrip tap water safe to drink?
- Rosebud CCD, MT
- Colstrip
The short answer for Colstrip
Recent public test data for Colstrip is limited. Check local utility reports and monitor updated EPA records for the latest water quality information.
The health risk for Colstrip
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
Units 1-4 Plant Area · Tested: Multiple dates
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Radium-228 | 0.400 pCi/L | 5 pCi/L | 8% of limit |
| Lithium | 0.760 mg/L | 10 mg/L | 8% of limit |
| Radium-226 | 0.300 pCi/L | 5 pCi/L | 6% of limit |
| Arsenic | 0.005 mg/L | 10 mg/L | 0.1% of limit |
| Nitrate + Nitrite | 2.160 mg/L | 1E+04 mg/L | 0.0% of limit |
| Lead | 0.001 mg/L | 15 mg/L | 0.0% of limit |
| Nitrate | 0.470 mg/L | 1E+04 mg/L | 0.0% of limit |
| Nitrite | 0.010 mg/L | 1000 mg/L | 0.0% of limit |
| Alkalinity, total | 683.000 mg/L | — | — |
| Barium | 0.050 mg/L | — | — |
| Bicarbonate | 364.000 mg/L | — | — |
| Boron | 0.300 mg/L | — | — |
| Bromide | 3.300 mg/L | — | — |
| Cadmium | 0.002 mg/L | — | — |
| Calcium | 429.000 mg/L | — | — |
| Carbonate | 7.000 mg/L | — | — |
| Chloride | 120.000 mg/L | — | — |
| Cobalt | 0.010 mg/L | — | — |
| Escherichia coli | 3420.000 umho/cm | — | — |
| Fluoride | 0.100 mg/L | — | — |
| Hardness, Ca, Mg | 8220.000 mg/L | — | — |
| Iron | 0.020 mg/L | — | — |
| Magnesium | 502.000 mg/L | — | — |
| Manganese | 0.040 mg/L | — | — |
| Molybdenum | 0.002 mg/L | — | — |
| Oxidation reduction potenti... | -107.400 mV | — | — |
| Oxygen | 0.870 mg/L | — | — |
| Phosphorus | 0.017 mg/L | — | — |
| Potassium | 35.000 mg/L | — | — |
| Radium | 0.700 pCi/L | — | — |
| Selenium | 0.039 mg/L | — | — |
| Sodium | 340.000 mg/L | — | — |
| Sulfate | 3200.000 mg/L | — | — |
| Thallium | 0.001 mg/L | — | — |
| Total dissolved solids | 12300.000 mg/L | — | — |
| Total Kjeldahl nitrogen (Or... | 0.500 mg/L | — | — |
| Water level in well, depth ... | 67.680 ft | — | — |
Water utilities serving ZIP 59323
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- Units 1-4 Plant Area (WQP)No recent federal sampling
Frequently Asked Questions about ZIP 59323 Tap Water
What's in ZIP 59323 tap water?
Recent public test data for ZIP 59323 is limited. Check your local utility's Consumer Confidence Report for the most current information.
Who provides tap water in ZIP 59323?
Public records identify Units 1-4 Plant Area (WQP) as a primary water system associated with ZIP 59323. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 59323 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 59323?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact Units 1-4 Plant Area (WQP) or visit their website for the latest official report covering ZIP 59323. The EPA also maintains a national CCR locator.
Do I still need a water filter in ZIP 59323?
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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Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.