Autotrol VOCs & Industrial Chemicals Filter

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What Area Monitoring Reveals Versus What It Cannot

The presence of volatile organic compounds (VOCs) in water is a complex subject that varies widely from one household to another. Government monitoring of the Iredell Water Corporation, which supplies surface water to over 27,000 people in Statesville, has identified traces of some VOCs including 1,1-dichloroethane. These data represent the overall system's water quality over multiple years, not an individual home’s water supply. While this information indicates that some solvent compounds exist in the system, it does not specify the concentration at your tap. Confirming your household water's actual VOC levels requires direct water testing at your property.

Why Volatility Matters: Routes of Exposure Beyond Drinking

Volatile organic compounds such as 1,1-dichloroethane are solvents that can evaporate into the air during water use activities. This volatility means exposure can happen not only through drinking but also through inhalation when showering or washing dishes. VOCs released from water during these activities can contribute to indoor air concentrations. Understanding these exposure routes highlights the importance of managing VOCs not just in water intake but also their evaporation during daily household use.

Seasonal Water-Table Variations and Solvent Plume Movement

The levels of volatile organics entering a well can fluctuate seasonally because groundwater tables rise and fall, altering the position of any solvent plume relative to the water intake screen. In Statesville’s surface water system, this dynamic can affect measurements over time. Monitoring data from 2013 to 2015 confirms that while some detections occurred, the levels remained within the range typical of this area’s water supply. However, individual wells drawing from variable sources would need periodic testing to track any seasonal changes in volatile organic compounds.

Plumbing Material and Age: An Additional Layer to Consider

Volatile organic compounds detected in household water can sometimes originate from plumbing materials themselves. Older pipes or certain plastic components may contribute trace amounts of VOCs independent of the source water quality monitored by the water system. This means your home’s plumbing age and materials might influence your water’s VOC profile separately from what government data indicates about the public supply. Identifying this requires specific testing of water after it leaves your plumbing.

Sample Size and Data Interpretation: What Small Numbers Mean

The EPA’s Unregulated Contaminant Monitoring Rule (UCMR3) data from Iredell Water Corporation is based on 64 sampling events over several years. Of these, only three detections of 1,1-dichloroethane rose above the reporting level of 0.03 micrograms per liter (µg/L), with the highest measured value at 0.11 µg/L. No regulated maximum contaminant levels (MCLs) apply to these specific VOCs under federal rules, so these detections are measurements, not violations. Limited samples provide a snapshot rather than a definitive profile of household exposure, making private water testing essential for precise knowledge.

How Commercial and Industrial Water Use Questions Differ

Unlike households, commercial and industrial operators face additional complexity due to potentially higher water volumes and regulatory requirements. Their concern often includes treatment capacity to handle elevated VOC loads and compliance with stricter standards. Households generally focus on exposure routes and removal effectiveness tailored to typical daily consumption. This distinction means residential users can prioritize solutions that address volatile organics at a scale matched to their water usage.

Documented Treatment for Household VOCs

For residential water systems facing VOC concerns in Statesville, the Autotrol VOCs & Industrial Chemicals Filter offers a targeted solution. Designed to reduce volatile organic compounds and solvent contaminants, this equipment ships ready to configure for home use. Pairing your water test results with this treatment can effectively address VOC presence aligned with your household’s demand.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-10-29. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Iredell Water Corporation (NC0149025), NC: 436 results across 7 listed contaminants, 3 detections above the reporting level; no federal MCL for these UCMR-listed VOCs