If you notice an unusual taste or worry about solvent stabilisers in your water from Lawrence, Douglas County, this checklist addresses common observations about 1,4-dioxane, a cyclic ether sometimes measured in local water supplies.
Movement of 1,4-Dioxane Relative to the Solvent Plume
1. The cyclic ether travels faster than the contaminant plume it once stabilised
This means dioxane can reach household taps before other solvent-related compounds, influencing detection timing.
2. The presence of dioxane does not always indicate solvent plume persistence
Its independent movement can complicate understanding of contaminant sources downgradient from original industrial sites.
Precision of Reported Low-Level Detections
1. Measurements are reported to three decimal places to capture very low microgram per liter levels
For the City of Lawrence, 1,4-dioxane was not detected above 0.07 µg/L (micrograms per liter), a reporting threshold equivalent to parts per billion.
2. Such precise reporting helps trace small occurrences but does not imply health safety concerns
These low-level detections are part of federal monitoring and are not violations or proof of water quality problems.
Entry of 1,4-Dioxane into Local Water Sources
1. The City of Lawrence's water system uses surface water sources
Surface water can carry trace amounts of cyclic ethers depending on upstream activities but is treated and monitored closely.
2. Dioxane, as a solvent stabiliser, originates from industrial processes but local detection is subject to many variables
This highlights the importance of understanding the system-wide data rather than individual pipe concerns.
Sampling Scope and Limitations
1. EPA collected eight samples between May 2013 and February 2014 for this constituent
No detection above the reporting level was found in these samples from the City of Lawrence water system serving over 95,000 people.
2. A small number of samples means broad conclusions about individual household water require specific testing
Only a test of your home's water can confirm your specific levels of the cyclic ether.
Household Variations Affecting 1,4-Dioxane Concerns
1. Large households may see different patterns in water usage that affect contaminant distribution timing
Volume and flow rates at fixtures can influence when and if dioxane traces appear during usage.
2. Seasonal or second homes may experience stagnation impacting chemical presence differently
Periods of disuse can alter the water profile, warranting testing when reoccupied.
In summary, federal data for Lawrence, Douglas County, show no detections of 1,4-dioxane above the reporting limit in the public water system. These findings guide decisions, but only direct household water testing reveals individual conditions. For households seeking targeted management of the cyclic ether in tap water, the Autotrol 1,4-Dioxane Filter ships ready to configure to address such needs.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-02-12. 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 Lawrence (KS2004503), KS: 8 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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