The water supply for residents in Monmouth and Ocean Counties, including communities such as Aberdeen Township, Asbury Park City, Brick Township, Long Branch, and Toms River, is sourced primarily from surface water. This water is treated and distributed by the NJ American Water Co. - Coastal North system, serving over 377,000 people through nearly 140,000 connections. Understanding what is known about the presence of 1,4-dioxane, also known as the cyclic ether and a solvent stabilizer, can guide households in selecting appropriate water treatment equipment.
If you consider typical carbon filtration or boiling methods
Standard carbon filters that many households rely on are generally ineffective at substantially reducing 1,4-dioxane. This cyclic ether is a small, water-soluble molecule, which makes it resistant to removal by common activated carbon setups. Boiling water also does not reduce 1,4-dioxane concentrations because it does not readily volatilize at typical boiling temperatures. Instead, documented technologies designed for this compound use other mechanisms, such as advanced oxidation or specialized filtration media formulated to target this ether. One such option is the Pentair 1,4-Dioxane Filter, which ships ready to configure for residential use.
If you want to understand the basis of the available data
The monitoring data for this constituent in the NJ American Water Co. - Coastal North system reflects a federal occurrence survey conducted between 2013 and 2015. Thirty-six samples were taken during this period, with 10 showing detections above the reporting level of 0.07 micrograms per liter (µg/L), which is equivalent to 0.07 parts per billion (ppb). The highest measured concentration was 0.5 µg/L, and the median of detected values was 0.19 µg/L. Note that these figures describe the public water system as a whole and do not indicate the concentration in any specific household's tap water.
If you wonder what 'detected', 'median', and 'range' signify
- Detected means the measurement instrument found 1,4-dioxane at or above the reporting level; it is not a violation or necessarily an unsafe level.
- Median of the detections provides the middle value of those samples where 1,4-dioxane was found, giving a sense of typical concentration in detected samples.
- Range indicates the span from the lowest detected concentration to the highest, showing variability within the data collected.
This language is important for interpreting the available data without assuming risk levels or legal thresholds that do not apply in this context. There is no federal maximum contaminant level (MCL) for 1,4-dioxane, though the EPA has a cancer risk reference concentration of 0.35 µg/L, which helps in understanding potential health guidance but does not constitute a legal limit.
If you manage a large household, a second home, or a seasonal property
Water usage and flow rates may vary greatly depending on household size and occupancy patterns. Larger households or properties used seasonally may have different water demand profiles that influence the choice of water treatment equipment. Systems designed to address 1,4-dioxane should be evaluated for their capacity to handle peak flows and intermittent use. The Pentair 1,4-Dioxane Filter is designed to accommodate typical residential patterns and is ready to configure for such conditions.
If you plan to seek professional treatment advice
Before discussing treatment options, it's important to document several key points: your location within the service area (to confirm it aligns with the NJ American Water Co. - Coastal North system), any prior water testing results you may have, and your household water usage needs. Armed with this information, you can better assess which equipment class meets your situation, including consideration of documented technologies like the Pentair 1,4-Dioxane Filter.
If you interpret certified lab testing reports for 1,4-dioxane
A certified laboratory test for 1,4-dioxane reports concentrations in micrograms per liter or parts per billion. When reviewing these reports, note the detection limit or reporting level, and compare detected values to EPA guidance concentrations such as the cancer risk reference concentration. While the lab results offer clarity on your home's water, remember that the public system data reflect averages and ranges that do not predict individual household levels precisely.
In conclusion, the most definitive step to determine if 1,4-dioxane is present at levels of concern in your household water is to order a certified laboratory test specifically for this cyclic ether. If the result exceeds your personal threshold for action or precaution, selecting a documented treatment method such as the Pentair 1,4-Dioxane Filter, which ships ready to configure for home use, is a practical next step to address your water treatment needs.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-09-08. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for NJ American Water Co. - Coastal North (NJ1345001), NJ: 36 results across 1 listed contaminants, 10 detections above the reporting level; no federal MCL; EPA cancer risk reference concentration 0.35 ug/L
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