What Does a Certified Laboratory Test for Perchlorate Show?
A certified laboratory test for perchlorate measures its concentration in micrograms per liter (µg/L) in your household water sample. This test report specifies whether perchlorate was detected above the reporting level and provides a numerical value if so. Because perchlorate concentrations vary in the environment, only a direct test of your home's water supply can identify the presence and amount of perchlorate specific to your residence in Bear or Hockessin.
What the EPA Sampling in Your Area Indicates and What It Does Not Mean
The Artesian Water Company public water system, which serves Bear and Hockessin in New Castle County, was monitored from 2001 to 2005 under EPA's Unregulated Contaminant Monitoring Rule. Over 48 samples did not detect perchlorate above the 4.0 µg/L reporting threshold in this surface water source. There is no established federal maximum contaminant level (MCL) for perchlorate, so the absence of detection at this level is neither a violation nor a definitive indication of perchlorate absence in every individual home. It signals that perchlorate was not measurable at or above this level in the public water system during the testing period.
Which Household Fixtures and Processes Are First Affected If Perchlorate Is Present?
Perchlorate, when present, primarily affects water used in drinking and cooking, as well as appliances directly connected to potable water—such as ice makers and coffee machines. It does not typically cause physical changes like staining or scaling on fixtures. Since perchlorate is a chemical ion, its presence would not alter taste or appearance noticeably but may be a concern based on health guidelines and individual sensitivity.
How the Autotrol Perchlorate Filter Works to Address This Concern
The Autotrol Perchlorate Filter employs a targeted filtration technology designed to reduce perchlorate ions from residential water supplies. This system ships ready to configure and functions by selectively removing perchlorate molecules through specialized media, ensuring that treated water supports household water use without perchlorate-related concerns. While it does not report specific removal figures here, this technology offers a direct solution for households seeking to manage perchlorate presence identified through testing.
Symptoms in Your Home That May or May Not Indicate Perchlorate Presence
Unlike minerals that cause staining or hardness, perchlorate presence does not produce visible or taste-based symptoms in household water. Lack of visual or sensory changes does not guarantee its absence; likewise, appearance alone cannot confirm perchlorate presence. Reliable determination relies on proper laboratory testing rather than observation of household water characteristics.
Closing: The Definitive Test to Determine Perchlorate in Your Household Water
To understand perchlorate levels specific to your home, order a water test from a certified laboratory capable of quantifying perchlorate concentrations below the 4.0 µg/L detection limit. A result reporting perchlorate below this level or undetected would indicate no measurable perchlorate was found in your tap water. This single test provides the conclusive information needed to decide if the Autotrol Perchlorate Filter or similar technology is a suitable step for your family's water treatment needs.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2002-05-29. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR1 monitoring (2001-2005) for ARTESIAN WATER COMPANY (DE0000552), DE: 48 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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