This week, you face the important decision of how to manage volatile organic compounds (VOCs) in your home's water after your existing water treatment equipment has ceased functioning.
Why volatility matters: showering, dishwashing and inhalation routes versus drinking
Volatile organic compounds, sometimes called volatile organics or solvent compounds, include chemicals like 1,1-dichloroethane, chloromethane, bromomethane, HCFC-22, Halon 1011, 1,3-butadiene, and MTBE. These compounds can evaporate easily from water into air, which means that exposure can occur not only by drinking water but also through inhalation during activities such as showering or dishwashing, where water vapor carries these compounds into the indoor environment. Understanding that inhalation and skin contact are significant exposure routes explains why addressing VOCs extends beyond just what is ingested.
How seasonal water-table changes move a solvent plume relative to a well screen
Groundwater levels fluctuate seasonally due to weather patterns and water usage, which can shift the position of solvent plumes underground. These plumes contain VOCs and may move vertically or horizontally, potentially altering the concentration of VOCs near a well screen over time. This natural variability means that VOC levels at any particular well can change, reinforcing the importance of periodic testing if VOC presence is a concern for your household.
How many samples and wells stand behind the figures, and what a small sample means
The Hernando County Utilities - West public water system monitors groundwater quality through regular sampling of multiple wells. Between 2013 and 2015, 30 samples were taken for each of several VOCs, such as 1,1-dichloroethane and chloromethane. None of these samples showed detectable levels above reporting thresholds, indicating low or undetectable VOC presence in system-supplied water during that period. However, since this monitoring covers numerous wells and serves over 65,000 connections, the data reflect the system's overall groundwater quality rather than conditions at any single home or well.
Which fixtures, appliances or processes are affected first and why
In a household experiencing VOC presence, appliances and fixtures involving aeration—such as showers, faucets, humidifiers, and dishwashers—may release VOC vapor into indoor air, potentially affecting air quality. This effect occurs because VOCs readily volatilize when water contacts air, especially during heating or agitation. Appliances that heat water or create fine sprays can accelerate VOC release compared to uses like toilet flushing or irrigation, where water is not aerosolized or inhaled.
Why aesthetic secondary standards differ from health-based limits, applied to this constituent
The Environmental Protection Agency (EPA) sets both health-based limits and aesthetic secondary standards for various substances in drinking water. For the volatile organic compounds monitored in Hernando County's public water supply, there are no federal maximum contaminant levels (MCLs) established because these compounds were part of an unregulated contaminant monitoring rule (UCMR3) survey rather than compliance testing. Consequently, occasional detections below reporting levels do not indicate a health violation or unsafe water. Secondary standards generally address taste, odor, or staining concerns, which may not apply to VOCs. Households concerned about VOC taste or vapor effects should consider treatment options accordingly.
Given your household’s situation with failed prior equipment and the regional VOC profile documented by Hernando County Utilities - West, a suitable response is to deploy a water treatment system designed to remove volatile organic compounds effectively. The Autotrol VOCs & Industrial Chemicals Filter ships ready to configure and offers documented capability to address common solvent compounds found in groundwater, matching capacity to household demand you have measured.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-04-23. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Hernando County Utilities - West (FL6277059), FL: 182 results across 7 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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