The City of Grand Forks in Grand Forks County, North Dakota, draws its public water supply from surface water sources, serving over 57,000 people. According to EPA records from a 2013-2015 federal occurrence survey, 1,2,3-trichloropropane (1,2,3-TCP) was not detected above the reporting level in this system's water. While this indicates low levels of this chlorinated solvent in the system, individual household water may differ, especially if existing equipment struggles to maintain quality.
Why is the Reporting Level for 1,2,3-Trichloropropane So Much Lower Than That for Common Metals?
1,2,3-Trichloropropane is a synthetic chlorinated solvent historically used in soil fumigation and industrial applications. Regulatory monitoring uses very low reporting levels—0.03 micrograms per liter (0.03 parts per billion)—which are thousands of times lower than typical action levels for many metals. This low threshold reflects the compound's potential persistence and the precautionary approach in detecting it, rather than an indication that low concentrations pose immediate health risks. The federal system for Grand Forks showed no detections above this level, confirming that the chlorinated solvent is not measured in significant amounts in the public water supply.
How Does the Fleck Technology Address 1,2,3-Trichloropropane in Home Water?
When a household's current treatment equipment struggles with 1,2,3-TCP, the Fleck 1,2,3-TCP Filter offers a documented method to reduce this chlorinated solvent. This technology utilizes a specialized filter media designed to adsorb 1,2,3-trichloropropane from water, helping to maintain water quality at the point of use. It ships ready to configure for residential setups, complementing existing treatment measures and addressing the compound efficiently.
Why Does Granular Activated Carbon Bed Depth Matter More for TCP Than for Taste?
Granular Activated Carbon (GAC) filtration is common in treating contaminants, including chlorinated solvents. For 1,2,3-trichloropropane, the contact time within the carbon bed—the duration water remains in contact with the media—is critical. TCP molecules require more extended exposure to the carbon to achieve meaningful adsorption compared to substances affecting taste or odor, which often respond to shorter contact times. Therefore, the depth of the GAC bed must be sufficient to provide this contact time; shallow beds may allow TCP to pass through untreated, which can be a factor in homes where existing equipment cannot keep up.
How Will Water Quality at the Tap Change After Using the Fleck 1,2,3-TCP Filter?
Once this filter is in place and operating effectively, homeowners can expect water at the tap to have reduced concentrations of 1,2,3-trichloropropane. This improvement helps sustain the quality of treated water, offering peace of mind for those concerned about chlorinated solvents. The water should exhibit fewer signs of TCP presence while retaining overall taste and safety characteristics, assuming all other water factors remain consistent.
Why Does 1,2,3-Trichloropropane Resist Air Stripping and What Does This Mean for Treatment Choice?
Air stripping is a method that removes volatile compounds by transferring them from water to air. However, 1,2,3-trichloropropane resists air stripping because of its chemical properties, including low volatility and strong persistence. This resistance means that air stripping is generally ineffective for treating TCP. Consequently, treatment technologies that rely on adsorption, such as specialized activated carbon filters like the Fleck 1,2,3-TCP Filter, are preferred for managing this constituent.
What Test Should Homeowners Order to Confirm Their Own Water Quality?
Because the EPA's monitoring results apply to the City of Grand Forks water system as a whole and not to any individual household, the only way to know a home's specific 1,2,3-trichloropropane levels is through a certified laboratory test targeted at this compound. Ordering a detailed water analysis that measures TCP concentration in micrograms per liter (µg/L) will provide a clear picture. Results below the reporting level indicate no measurable presence, while measurable detections can inform decisions about additional treatment options such as the Fleck 1,2,3-TCP Filter.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-10-29. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for City of Grand Forks (ND1800410), ND: 4 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level