Fleck 1,4-Dioxane Filter

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If you notice unusual concerns at your faucet about 1,4-dioxane after your existing water treatment equipment stopped functioning, understanding the context from Canyon County data can guide your next steps.

1. Why a Low-Level Detection Is Reported to Three Decimal Places and What Precision Means Here

Reported Levels Are Precise, Not Indicative of Risk

The City of Caldwell public water system, which serves much of Canyon County, reports 1,4-dioxane concentrations below the reporting threshold of 0.07 micrograms per liter (µg/L), also known as parts per billion (ppb). The measurement precision to three decimal places simply reflects the sensitivity of EPA's monitoring instruments rather than a health hazard or regulatory breach.

2. How Landfill Leachate, Degreasing Sites, and Consumer Products Each Contribute to the Record

Multiple Sources Lead to Trace Levels in Groundwater

• Landfill leachate can introduce trace cyclic ethers like 1,4-dioxane into groundwater over time.
• Industrial degreasing operations are known to use solvents that stabilize the presence of 1,4-dioxane.
• Household and consumer products also contribute small amounts, reflecting widespread but low-level environmental occurrence.

3. Why Carbon and Boiling Do Little for This Ether, and Which Technologies Are Actually Documented

Common Methods Are Ineffective; Targeted Treatment Is Needed

• Standard activated carbon filters have limited effect on cyclic ethers like 1,4-dioxane.
• Boiling water does not remove this solvent stabilizer due to its chemical properties.
• The Fleck 1,4-Dioxane Filter is documented to address this constituent effectively and ships ready to configure for household use.

4. The Role of Plumbing Material and Age, Separate from the Source Water

Household Plumbing Does Not Affect 1,4-Dioxane Levels

1,4-Dioxane is not generated by plumbing materials or affected by the age of pipes. Its presence reflects source water quality rather than household infrastructure.

5. What a Certified Laboratory Test for This Constituent Reports and How to Read It

Laboratory Testing Determines Your Specific Water Condition

• The only way to know your household water's 1,4-dioxane concentration is through testing by a certified laboratory.
• Lab reports provide concentrations in micrograms per liter (µg/L), which can be compared to federal reference concentrations.
• A detection below the reporting limit means the constituent is present but at very low levels, not a safety violation.

6. How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means

Data Reflects 26 Samples from Public Water Sources

The EPA's Unregulated Contaminant Monitoring Rule included 26 groundwater samples from the Caldwell system during 2013-2015. None detected 1,4-dioxane above 0.07 µg/L. This sample size provides insight into system-wide water quality but does not specify individual household water.

In summary, Canyon County’s municipal water system shows no 1,4-dioxane levels above detection limits set for federal monitoring, and no health-based violations are recorded. To understand your household’s water quality accurately, certified laboratory testing is essential. When addressing 1,4-dioxane found in water, using a specialized device such as the Fleck 1,4-Dioxane Filter can help households manage this cyclic ether more effectively than common filtration or boiling methods.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-05-28. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for City of Caldwell (ID3140013), ID: 26 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level