Fleck 1,2,3-TCP Filter

Buy Now

View full details

How did a soil fumigant impurity from the 1950s-1980s reach deep groundwater decades later?

1,2,3-trichloropropane (1,2,3-TCP) is a chlorinated solvent historically used as an impurity in soil fumigants and industrial chemicals between the 1950s and 1980s. Though its application ceased decades ago, this compound is persistent in the environment and slowly leaches from treated soils into groundwater over long timeframes. In Vienna, Wood County, the local water supply system draws from groundwater sources that can still carry traces of TCP due to this delayed migration. This means that historical land uses influence water quality today and require ongoing attention despite improvements in chemical usage.

Why does 1,2,3-trichloropropane resist air stripping and what does that imply for treatment choice?

1,2,3-TCP’s chemical properties make it resistant to removal by air stripping, a method that relies on transferring volatile compounds from water to air. Unlike some volatile organics, TCP's low volatility and strong bonding properties reduce the effectiveness of this approach. For households in Vienna whose existing water equipment struggles to keep up, alternative treatment technologies are needed. These technologies are designed specifically to address the persistence and chemical stability of TCP, providing more reliable reduction of this chlorinated solvent.

How does 1,2,3-trichloropropane enter groundwater or the distribution system in this region?

The chlorinated solvent enters groundwater through historical contamination of soils from industrial and agricultural uses in the Wood County region. Over time, TCP infiltrates deeper soil layers and eventually reaches the aquifers that supply the Vienna public water system. The public water system serving Vienna—a community of roughly 12,500 people with 5,530 connections—reports no detections of 1,2,3-TCP above the EPA’s reporting level of 0.03 micrograms per liter (µg/L) in federal monitoring from 2013 to 2015. However, the presence of any measurement above the detection limit in general does not imply a violation or unsafe condition because federal maximum contaminant levels (MCLs) do not exist for this compound.

What happens when this problem is left untreated for years, stated without exaggeration?

Leaving 1,2,3-TCP untreated can result in chronic presence of this chlorinated solvent in household water supply. While there are no established federal MCLs, ongoing exposure to TCP at elevated concentrations is a concern primarily due to its classification as a potential human carcinogen by some agencies. Untreated 1,2,3-TCP can persist and accumulate because of its chemical stability. Households relying on equipment that only partially addresses contaminants may find that their systems no longer maintain desired water quality standards over time. As a result, evaluating treatment options tailored for TCP is recommended to ensure long-term water quality.

What is the role of plumbing material and age, separate from the source water?

Plumbing systems within homes can influence water quality independently from source water issues. Older pipes or specific materials may contribute to aesthetic changes or interact with certain contaminants affecting taste, color, or corrosion. However, these factors do not affect 1,2,3-trichloropropane concentrations, which are determined by the source water. Therefore, even well-maintained plumbing cannot reduce TCP concentrations. Households experiencing persistent 1,2,3-TCP concerns should focus on treatment solutions designed for source water contaminants rather than plumbing upgrades alone.

What test should the reader order to settle the question?

The single most informative step for a Vienna household concerned about 1,2,3-TCP is to obtain a comprehensive laboratory analysis of their own tap water. This test should specifically quantify 1,2,3-trichloropropane at levels around or below 0.03 micrograms per liter (0.03 parts per billion) to determine presence relative to the EPA reporting level. While regional system data provides context, only direct testing of your water source reveals your actual exposure level. A result showing no detection or very low levels may confirm existing equipment’s adequacy. If measurable amounts are present, a water treatment option such as the Fleck 1,2,3-TCP Filter, which ships ready to configure for household use, can help address persistent chlorinated solvent challenges effectively.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-12-03. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Vienna (WV3305411), WV: 6 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level