Fleck VOCs & Industrial Chemicals Filter

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If Your Lab Test Reports a Compound as Not Detected

A laboratory analysis for volatile organic compounds (VOCs) in water uses detection limits to indicate what concentrations can be reliably measured. For example, Dover's public water system record shows that 1,1-dichloroethane was not detected above 0.03 micrograms per liter (µg/L) in any tested sample. A 'not detected' result means the compound, if present, is below the laboratory's method detection limit rather than completely absent. This distinction is important because very low levels of volatile organics may still exist but cannot be quantified with certainty by the test.

If You Are Concerned About Exposure Routes Beyond Drinking

Volatility affects how solvent compounds interact with household activities. Showering, dishwashing, and other uses release VOCs into the air where inhalation can occur. This inhalation exposure route is often more significant than drinking water consumption alone for volatile organics. Therefore, addressing VOCs in water involves considering not just ingestion but also evaporation into indoor air during typical water use.

If You See 'Detected', 'Median', or 'Range' in Your Water System’s Sampling Results

Dover's EPA monitoring from 2013 to 2015 recorded detections of HCFC-22 in 2 out of 28 samples with levels reaching up to 0.26 µg/L (0.26 parts per billion). Halon 1011 was detected once at 0.064 µg/L. These detections are measurements above reporting levels, which means the compounds were present at quantifiable amounts during sampling. However, these values do not represent health-based violations. The median of detected HCFC-22 samples, 0.235 µg/L, reflects the midpoint concentration among positive detections but does not indicate an exceedance of any regulatory standard.

If You Seek a Reliable Way to Address Confirmed VOCs in Your Household Water

The Fleck VOCs & Industrial Chemicals Filter ships ready to configure and uses proven technology to reduce a range of volatile organic compounds and industrial solvents from water. This system treats water within the household plumbing, focusing on removing solvent compounds that have been detected by water utilities and in private well tests nationwide. The maintenance rhythm mainly involves periodic replacement of the filter media to maintain effective contaminant reduction.

If You Notice Certain Water Quality Symptoms

Symptoms such as unusual tastes or odors may sometimes be linked to volatile organics but are not definitive indicators. Many household water quality issues do not stem from VOCs. Without laboratory testing, it is not possible to establish if VOCs at concern levels exist. Documented VOC detections in Dover's system are low and sporadic, so typical household water complaints often have other causes.

If You Wonder Why Aesthetic Secondary Standards Differ from Health-Based Limits

Aesthetic guidelines address taste, odor, and staining but are not health-based safety limits. For VOCs like those recorded in Dover, no federal Maximum Contaminant Level (MCL) exists under the Unregulated Contaminant Monitoring Rule (UCMR) sampling. This means detections are informational and for assessing presence, not regulatory compliance or health risk assessment. Understanding this distinction helps avoid unnecessary concern about low-level measurements.

This page has guided you through interpreting VOC laboratory limits, exposure considerations, what detections mean in public water sampling, maintenance of a documented treatment option, typical household symptoms, and the difference between aesthetic and health-based water quality standards. These steps assist in deciding if and how to address VOCs in your Kent County home water.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-03-12. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Dover Water Department (DE0000571), DE: 196 results across 7 listed contaminants, 3 detections above the reporting level; no federal MCL for these UCMR-listed VOCs