Government sampling records from the Fort Defiance/Window Rock/St. Michaels - NTUA water system serving NN County report no detected 1,4-Dioxane above the reporting level of 0.07 micrograms per liter (µg/L) in 10 samples collected between September 2014 and March 2015. No federal maximum contaminant level (MCL) exists for 1,4-Dioxane, and no health-based violations have been recorded for this system.
How the Documented Treatment Technology Removes or Neutralizes 1,4-Dioxane
The C-Series 1,4-Dioxane Filter employs specialized filtration technology designed to reduce trace organic contaminants like 1,4-Dioxane in residential water supplies. It works by adsorbing or breaking down this compound at the molecular level, helping to decrease concentrations where 1,4-Dioxane may be present. This equipment ships ready to configure for home use and can be part of a water treatment solution tailored to address 1,4-Dioxane if testing indicates its presence.
How Seasonal or Multi-Year Variation Shows in the Record
The federal occurrence monitoring comprised 10 samples collected over approximately six months from late 2014 to early 2015. Throughout this period, none showed 1,4-Dioxane levels above the reporting threshold of 0.07 µg/L. This span provides a snapshot rather than a continuous record, so seasonal or longer-term fluctuations could exist but were not observed at detectable levels during this monitoring.
The Role of Plumbing Material and Age, Separate from the Source Water
While source water quality data reflect the public water system’s supply, individual household plumbing materials and their age can influence water composition by contributing substances or affecting chemical interactions. 1,4-Dioxane is primarily a source water contaminant, so plumbing factors generally do not generate this compound but might impact other water quality parameters.
How Sample Depth, Well Depth or Source Type Changes What a Reader Should Expect
The NTUA system encompasses multiple sources and public distribution connections, but the monitoring data cover treated water as supplied to customers, not individual wells or tap water. Variability in source types (surface water, groundwater) or sampling depths can affect contaminant profiles elsewhere, but this public system record provides data relevant to community-wide supply rather than localized testing.
What a Certified Laboratory Test for This Constituent Reports and How to Read It
To determine 1,4-Dioxane presence or concentration in a specific household supply, a certified laboratory test is required. Such analyses report measured concentrations, detection limits, and whether results exceed reporting thresholds. Reading the report involves noting the detected concentration relative to the laboratory’s reporting level; a nondetect means the compound was below that level, not necessarily absent. This personal water quality data helps decide if treatment like the C-Series 1,4-Dioxane Filter is warranted.
It is important not to assume the public water system’s sampling record represents every home's water quality precisely. Testing your own water is the only way to know your household’s 1,4-Dioxane levels and whether targeted treatment is needed. The NTUA system’s data indicate no detection above low reporting levels during the monitored period but do not guarantee individual results. Using certified testing and appropriate treatment can provide confidence in water safety and quality tailored to your home.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-03-10. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Fort Defiance/Window Rock/St. Michaels - NTUA (NN0403000), NN: 10 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level