How a Gasoline Release Differs from a Dry-Cleaning Release in What It Leaves in Groundwater
La Crosse’s groundwater, which supplies the public water system serving over 53,000 people, may contain traces of volatile organic compounds (VOCs) from various sources. Gasoline-related releases often leave behind certain VOCs, such as 1,1-dichloroethane, whereas releases related to dry-cleaning solvents tend to contribute different sets of VOCs. The monitoring of La Crosse’s water system detected 1,1-dichloroethane at low levels, with a highest recorded measurement of 0.048 micrograms per liter (µg/L), equivalent to 0.048 parts per billion (ppb). This and similar compounds reflect the types of residual solvents that can enter groundwater from industrial or urban sources. Neither gasoline nor dry-cleaning solvent compounds were found above federal maximum contaminant levels, which means these detections indicate presence at very low concentrations rather than health-based violations.
Why Volatility Matters: Showering, Dishwashing and Inhalation Routes Versus Drinking
Volatile organic compounds differ from many water contaminants due to their tendency to evaporate or off-gas. This volatility means that exposure to VOCs can occur not only through drinking water but also through inhalation of vapors during activities like showering, washing dishes, or doing laundry. In La Crosse’s water system, compounds like HCFC-22 were detected in a few samples, with the highest recorded at 0.23 µg/L (0.23 ppb). While the health implications depend on concentration and exposure duration, these VOCs’ volatility makes it important to consider multiple exposure pathways when assessing water quality concerns. Drinking water treatment removes dissolved VOCs, but household air quality during water use can also affect overall exposure.
How the Treated Water Differs at the Tap Once the Documented Technology Is in Place
When a household chooses to reduce VOCs in their tap water, technologies designed specifically for volatile organic compounds and industrial chemicals can be effective. The C-Series VOCs & Industrial Chemicals Filter uses targeted filtration media to reduce a range of solvent compounds present in groundwater supplies like La Crosse’s. After water passes through this system, VOC concentrations at the tap can be substantially lowered, improving water quality from the perspective of solvent compound content. This difference manifests in reduced off-gassing potential and lowered chemical taste or odor associated with VOCs, though any treatment outcome depends on the initial water quality at the home and proper configuration of the system shipped to the customer.
The Role of Plumbing Material and Age, Separate from the Source Water
Plumbing materials and system age influence water quality within the household independently of the water source. VOCs detected in La Crosse’s groundwater come from environmental sources outside the plumbing, but the way water interacts with pipes, fittings, and fixtures can affect compound levels and water characteristics. Older plumbing or materials that adsorb or leach chemicals might increase or decrease VOC concentrations at the tap. Therefore, understanding water quality fully requires considering the distribution system and household plumbing in addition to source water measurements.
What the Reader Should Write Down Before Asking Anyone for Treatment Advice
Before seeking treatment recommendations, homeowners should note key details: their water source (public groundwater system or well), any local water quality reports such as those from La Crosse Waterworks, and specific contaminants of concern like 1,1-dichloroethane or HCFC-22 detected in the area. Recording the history of any water testing conducted on their own tap water is essential, including detection levels of VOCs if available. This information allows a tailored approach to decide if a VOCs-specific filter system fits the household's needs and which class of treatment may be required.
Closing: The most definitive step is to order a detailed water test from a certified laboratory that specifically includes volatile organic compounds analysis. If this test confirms the presence of VOCs at levels consistent with regional detections, a targeted filtration system like the C-Series VOCs & Industrial Chemicals Filter can effectively reduce solvent compounds and improve household water quality.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-06-16. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for La Crosse Waterworks (WI6320309), WI: 178 results across 7 listed contaminants, 3 detections above the reporting level; no federal MCL for these UCMR-listed VOCs