Understanding the quality of your household water in Statesville, Iredell County, requires careful consideration. While local public water system data can inform you on community water characteristics, it cannot specify your home's own water condition. One particular concern is 1,2,3-trichloropropane (known as 1,2,3-TCP or TCP), a chlorinated solvent historically used in some industrial and agricultural applications.
How the Agricultural History in Iredell County Reflects on 1,2,3-TCP Findings
Iredell Water Corporation supplies public water to over 27,000 people in the area using surface water sources. According to monitoring conducted from 2013 to 2015 under the EPA's Unregulated Contaminant Monitoring Rule (UCMR3), none of the 64 samples taken showed 1,2,3-TCP levels above the reporting threshold of 0.03 micrograms per liter (parts per billion). This aligns with the area's land-use history where chlorinated solvents had limited to no widespread recent application. Thus, while the region's agricultural past involved some fumigants, current water system data finds no measurable TCP presence above detection limits.
Why the Reporting Level for 1,2,3-Trichloropropane is Set So Low Compared to Common Metals
The reporting level for 1,2,3-TCP in these federal surveys is set at 0.03 micrograms per liter, which can seem extremely low relative to thresholds for metals like lead or copper. This is due to the compound’s classification as a synthetic chlorinated solvent with potential long-term health considerations even at very low concentrations. The measurement sensitivity is deliberately high to capture even trace amounts, though detection at or below this level does not imply any health-based violation or standard exceedance. This contrasts with metals, where regulatory limits and health-based maximum contaminant levels (MCLs) are established differently.
What Water Treatment Considerations Change for Large Households, Second Homes, or Seasonal Properties
Larger households or properties used intermittently may have different priorities when choosing water treatment approaches for constituents like 1,2,3-TCP. For a primary residence, continuous treatment capability and maintenance ease can influence equipment choice. At a second or seasonal home, treatment that can remain ready without constant oversight may be preferred. Because 1,2,3-TCP is a chlorinated solvent that persists through some simpler treatment methods, selecting a technology effective for this specific chemical is essential regardless of property type.
What the Measured Range of 1,2,3-TCP Means Against Federal Standards and What It Does Not Mean
The absence of any detected 1,2,3-TCP above the reporting level in the Iredell Water Corporation system means the community water supply has not shown measurable presence of this chlorinated solvent during monitoring. Importantly, there is no federal Maximum Contaminant Level (MCL) set for 1,2,3-TCP; thus, no legal limit applies federally. Detection would not equal a violation or unsafe condition. Water testing specific to your household is necessary to confirm your own water situation, as local data reflects the entire distribution, not individual taps.
Why 1,2,3-Trichloropropane Does Not Respond to Air Stripping and What That Implies for Treatment Choices
1,2,3-TCP is chemically resistant to removal by air stripping because it has a low volatility compared to other common volatile organic compounds. This means that treatment options relying solely on air stripping will not effectively reduce TCP levels if present in your water. Instead, technologies such as activated carbon filtration designed to adsorb chlorinated solvents provide a documented approach for addressing 1,2,3-TCP. Among these, the Fleck 1,2,3-TCP Filter offers a ready-to-configure solution that targets TCP specifically, ensuring water treatment aligns with the chemical’s unique properties.
What You Should Not Conclude From Area-Wide Data
While the federal monitoring records for the Iredell Water Corporation in Statesville show no detected 1,2,3-TCP above the reporting level, this does not guarantee your household water is free from it. Area data cannot substitute for direct testing of your own well or tap water. Likewise, the absence of federal MCLs means no established legal limit applies, so detections—even if they occurred—would not automatically equate to unsafe conditions under federal law. To make an informed choice between treatment methods, consider testing your own water for 1,2,3-trichloropropane and select a technology equipped to handle TCP’s chemical nature.
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: 64 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level