Fleck 1,2,3-TCP Filter

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Laboratory Test Reports and 1,2,3-TCP Measurements

What a Test Report Lists for 1,2,3-TCP

A typical water quality report for 1,2,3-trichloropropane (TCP) shows measured concentrations in micrograms per liter (µg/L), also known as parts per billion (ppb). For Jones County's public water system, EPA monitoring from 2013 to 2015 showed no detections above the reporting level of 0.03 µg/L in 12 samples. This record reflects system-wide data, not individual home tests.

How a Soil Fumigant Impurity from the Mid-20th Century Can Persist in Groundwater

Legacy of Chlorinated Solvent Use

1,2,3-TCP is a chlorinated solvent once used as a soil fumigant from the 1950s to the 1980s. Over time, residues of such compounds can seep into deep groundwater or surface water sources, sometimes decades later. In Jones County, surface water is the source for the public system; thus, any TCP presence would originate from environmental persistence or runoff linked to past usage.

Comparison of California’s 5 ng/L Limit with the Federal Regulatory Landscape

State versus Federal Guidelines

California enforces a state limit of 5 nanograms per liter (ng/L) for 1,2,3-TCP, equivalent to 0.005 µg/L. The absence of a federal maximum contaminant level (MCL) means the EPA does not impose a national enforceable limit at this time. Jones County’s monitoring data does not show detections above 0.03 µg/L, higher than California’s threshold but still indicating no federal violation or safety exceedance.

Understanding Detection, Median, and Range in the EPA Sampling Record

Meaning of Key Terms in Water Quality Data

• Detected: A measurement above the method reporting level, not necessarily a health concern or violation.
• Median: The middle value in a set of measurements, illustrating typical concentration where detections occur.
• Range: The span from lowest to highest detected value within samples taken.

Jones County samples showed zero detected readings above 0.03 µg/L for 1,2,3-TCP; thus, median and range data do not indicate quantifiable TCP presence during monitoring.

Household and Facility Water Issues That May or May Not Indicate TCP Presence

Recognizing Symptoms Related to Chlorinated Solvents

1,2,3-TCP generally is odorless and tasteless at low concentrations. Typical household water symptoms such as staining, discoloration, or odor are unlikely related to TCP. The absence of health-based violations in Jones County’s system means these symptoms stem from other causes if present.

Influence of Sample Depth, Well Depth, or Source Type on Expectations

How Water Source Characteristics Affect TCP Levels

Samples taken from surface water sources, like Jones County's system, often differ from those in deep wells where historic fumigant residues may concentrate. The monitoring results provided relate to the community water supply, which may have different chemical profiles than individual private wells.

Granular Activated Carbon Contact Time: Why Bed Depth Matters More for TCP Than for Taste

Effective Treatment Principles for Chlorinated Solvents

Removal of chlorinated solvents like 1,2,3-TCP requires sufficient contact time in granular activated carbon (GAC) filters. Bed depth in the filter media directly influences this contact time, making deeper beds more effective at addressing TCP than superficial taste or odor issues.

Definitive Testing to Confirm Household 1,2,3-TCP Levels

Because government monitoring data reflect the public system and not individual homes, a private water sample tested specifically for 1,2,3-trichloropropane concentration is essential to determine actual household levels. A test report listing 1,2,3-TCP concentration in micrograms per liter will provide the clarity needed.

For households in Jones County considering options to address potential 1,2,3-TCP presence, the Fleck 1,2,3-TCP Filter ships ready to configure for point-of-entry treatment using granular activated carbon technology. This equipment class is designed to provide the necessary contact time and bed depth to reduce chlorinated solvents effectively.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2014-11-10. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Jones County (GA1690002), GA: 12 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level