How landfill leachate, degreasing sites and consumer products each contribute to the record
The cyclic ether known as 1,4-dioxane commonly enters surface water sources through several pathways. Landfill leachate can carry residues from disposed consumer products containing dioxane. Industrial degreasing sites add to contamination due to the solvent stabiliser's use in various cleaning solvents and detergents. Additionally, everyday consumer products like shampoos and cosmetics may contribute small amounts that eventually reach water bodies. In Laramie's public water system, which draws from surface water, these sources cumulatively influence federal sampling results.
Why a low-level detection is reported to three decimal places and what precision means here
Federal monitoring for 1,4-dioxane in the City of Laramie's water system under the EPA's Unregulated Contaminant Monitoring Rule 3 (UCMR3) reports measurements down to hundredths of micrograms per liter. This level of precision, such as 0.07 µg/L, reflects analytical detection limits for the cyclic ether solvent stabiliser rather than a health-based standard. The reporting to three decimal places helps track even trace presence levels, providing detailed information but not indicating safety or regulatory compliance. For residents, it means the data show no detected 1,4-dioxane above reporting thresholds during 2013-2015 monitoring.
How to judge treatment capacity against the household's or facility's daily demand
When considering options to address 1,4-dioxane on the residential scale, it is important to match any treatment technology’s throughput with your household's daily water use. Daily demand includes all water for drinking, cooking, bathing, and laundry. Treatment devices must be capable of processing sufficient volume without losing effectiveness. Without knowledge of your household's flow requirements, sizing cannot be accurately assessed. Measuring your average daily and peak water consumption allows evaluation of whether a given technology can provide continuous treatment under typical use patterns.
What the reader should write down before asking anyone for treatment advice
Before exploring treatment choices, gather your household water usage data and recent water quality test results specifically testing for 1,4-dioxane or the cyclic ether. Note whether tests were conducted on well water or tap water, including sampling dates and methodologies. Document the metrics reported—detected concentration, reporting limits, and measurement units in micrograms per liter or parts per billion. This information ensures focused and efficient guidance when discussing treatment possibilities tailored to your home's water profile.
What 'detected', 'median' and 'range' mean in the sampling record on this page
The monitoring record for Albany County's public water system reports nondetects for 1,4-dioxane—in ten samples taken in the 2013-15 period, none exceeded the detection threshold of 0.07 µg/L (micrograms per liter). 'Detected' means the measurement instrument registered a quantity at or above this threshold; 'median' refers to the middle value of all measurements, which here is effectively zero; 'range' indicates the span from minimum to maximum results found, all below detection level. These terms describe measured presence without implying health risks or legal violations.
Federal data shows no health-based violations recorded for the City of Laramie's surface water supply that serves Albany County residents. The Environmental Protection Agency designates a cancer risk reference concentration of 0.35 µg/L for 1,4-dioxane but does not set a maximum contaminant level (MCL). Thus, the absence of detected levels above reporting limits suggests typical water quality is within federal expectations.
For residential households seeking to address potential 1,4-dioxane concerns, the C-Series 1,4-Dioxane Filter is a documented solution shipped ready to configure for typical daily demands. It uses technology designed to handle low-level cyclic ether concentrations effectively, enabling homeowners to tailor treatment capacity to their water consumption patterns based on measured daily usage.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2013-11-19. 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 Laramie (WY5600029), WY: 10 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level

