What 'Not Detected' Means for VOCs in Local Water

Laboratory Detection Limits Define 'Not Detected'

For the Naval Station Washington - Washington Navy Yard water system serving District Of Columbia County, federal monitoring found that several VOCs such as 1,1-dichloroethane and chloromethane were not detected above their method detection limits. This means concentrations, if present, are below the smallest levels these tests can reliably measure, not that the compounds are definitively absent.

Seasonal Water-Table Changes Affect VOC Movement

Solvent Plumes Shift with Seasons

Changes in groundwater levels throughout the year can move solvent plumes vertically and horizontally relative to well intake depths. This seasonal variation influences VOC concentration in sourced surface water, which is important to consider for those comparing treatment approaches for their home water.

Distinguishing VOCs from Similar Water Concerns

VOCs Versus Other Water Quality Issues

Volatile organic compounds like halon 1011 differ from common secondary aesthetic concerns such as taste or odor compounds. VOCs are industrial chemicals or solvents, whereas taste and odor issues often stem from different causes and have different treatment requirements.

Influence of Sampling Depth and Water Source

Surface Water Source and Sample Depth Matter

The public water system here draws from surface water, which can have varying VOC levels compared to groundwater. Sample depth and whether a source is a well or surface intake affect expected compound concentrations and guide testing needs for individual homes.

Interpreting Measured VOC Ranges with Federal Standards

Detection Does Not Equal Exceeding Federal Limits

Federal monitoring found one detection of halon 1011 at 0.08 micrograms per liter (0.08 parts per billion). There are no federal maximum contaminant levels set for these compounds under the Unregulated Contaminant Monitoring Rule (UCMR3). Therefore, detections are measurements, not violations or indications of unsafe water.

How the C-Series VOCs & Industrial Chemicals Filter Addresses VOCs

Targeted Removal of Solvent Compounds

The C-Series system uses specialized filtration technology designed to reduce volatile organic compounds effectively in household water. It ships ready to configure for residential use and focuses on removing VOCs like halon 1011 and other solvents documented in regional water quality data.

Final Step: Testing Your Household Water for VOCs

Order a Comprehensive VOC Test to Confirm Your Home’s Water Quality

Because public system data describe general conditions, testing your home's water sample is the only way to know actual VOC concentrations. A laboratory VOC analysis covering volatile organics will provide definitive information to guide your treatment choice.

With confirmed test results, the C-Series VOCs & Industrial Chemicals Filter can be selected confidently as an appropriate solution aligned with your household's specific water quality needs.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-09-09. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Naval Station Washington - Washington Navy Yard (DC0000003), DC: 24 results across 6 listed contaminants, 1 detections above the reporting level; no federal MCL for these UCMR-listed VOCs