Public Water System Sampling Record for 1,4-Dioxane in Adams County
EPA Data on South Adams County WSD
Federal monitoring from 2013 to 2015 detected 1,4-dioxane, a cyclic ether solvent stabilizer, in surface water supplies serving 75,559 people through 24,754 connections. Out of 28 samples, 20 showed measurable concentrations, with the highest recorded at 3.2 micrograms per liter (µg/L or parts per billion, ppb). No health-based violations were noted in this public water system record.
Distinguishing UCMR3 Detection from Colorado Notification Levels for 1,4-Dioxane
UCMR3 Detection vs. State Reporting Thresholds
Federal Unregulated Contaminant Monitoring Rule 3 (UCMR3) reports detected 1,4-dioxane but does not set a maximum contaminant level (MCL). These detections indicate presence above the analytical reporting level of 0.07 µg/L but do not itself imply a violation or unsafe condition. State notification levels, if applicable, serve different regulatory purposes and may vary from these federal monitoring results.
Reverse Osmosis Rejection Rates and Their Practical Implications
Understanding Percentage-Based Rejection
Reverse osmosis (RO) equipment often quotes rejection rates for cyclic ethers like dioxane as percentages. However, these percentages do not guarantee fixed output concentrations because effectiveness depends on feed water characteristics, system configuration, and maintenance. Percentage figures are best considered indicative rather than absolute measures of solvent stabilizer passage.
Long-Term Presence of 1,4-Dioxane Without Treatment
Potential Household Water Considerations Over Years
When 1,4-dioxane, also known as the solvent stabilizer, remains in water over many years, it may persist due to its chemical stability and solubility. While federal records show no health-based violations in your public system, untreated cyclic ether in private water sources can accumulate if present. Regular testing is advisable to evaluate exposure over time.
Differences Between Public System Records and Private Well Testing
Scope of Government Monitoring vs. Individual Home Conditions
The government sampling data reflect broad measurements across the South Adams County water system rather than specific household plumbing or private wells. Private well owners must perform their own testing to determine 1,4-dioxane levels locally, as system-wide data do not establish conditions at individual taps.
Sources Contributing to 1,4-Dioxane Presence in Adams County Water
Landfill Leachate
Leachate from landfills can carry cyclic ether compounds into surface or groundwater, influencing system-wide detections.
Degreasing Sites
Industrial uses of 1,4-dioxane in degreasing operations can contribute to solvent stabilizer presence in nearby water supplies.
Consumer Products
Household and commercial products containing dioxane as a stabilizer may also leach this compound into wastewater streams affecting surface water sources.
Fixtures, Appliances, and Household Processes Most Affected by 1,4-Dioxane
Drinking Water Points
Water consumed directly or used in cooking may deliver cyclic ether exposures without additional treatment.
Water Heaters and Boilers
Hot water appliances can concentrate or facilitate interaction with dioxane, potentially influencing taste or odor depending on concentrations.
Washing Machines and Dishwashers
While less directly affected, these appliances may use water containing the solvent stabilizer, influencing cleaning performance or fabric exposure.
Conclusion: Matching Treatment to Your Measured Demand
To address 1,4-dioxane levels as indicated by the South Adams County water system data, households weighing technical approaches may consider the Fleck 1,4-Dioxane Filter. This Fleck System ships ready to configure and is designed specifically to reduce the cyclic ether solvent stabilizer according to your home’s measured concentration, providing an option matched to your household’s water quality needs.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-02-10. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for South Adams County WSD (CO0101140), CO: 28 results across 1 listed contaminants, 20 detections above the reporting level; no federal MCL; EPA cancer risk reference concentration 0.35 ug/L
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.