Water serving households in Columbia County, Arkansas, primarily comes from surface water sources managed by Magnolia Waterworks, a community water system serving over 11,600 residents. This surface water undergoes treatment at the system level before reaching residential taps through more than 5,000 connections.
How does Columbia County’s agricultural past relate to 1,2,3-trichloropropane in water?
The history of agricultural land use in Columbia County is relevant because 1,2,3-trichloropropane, or TCP, originated as a contaminant in soil fumigants and industrial solvents used in farming activities during the mid-20th century. Contaminants like TCP can persist and migrate through soils and groundwater over decades, potentially reaching water supplies. Though Magnolia Waterworks obtains water from surface sources, past land management can still influence water quality through runoff and sediment transport. Understanding these historic applications helps contextualize why TCP was monitored in this water system.
What do government measurements reveal about 1,2,3-TCP levels here, and what does this imply?
Between late 2013 and 2014, EPA’s Unregulated Contaminant Monitoring Rule (UCMR3) collected data from the Magnolia Waterworks system about 1,2,3-TCP presence. In eight samples taken during that period, none showed TCP levels above the laboratory reporting threshold of 0.03 micrograms per liter (µg/L), which also equals 0.03 parts per billion (ppb). Importantly, there is no federal maximum contaminant level (MCL) set for 1,2,3-trichloropropane. Thus, the lack of detectable levels above the reporting limit suggests very low TCP presence in this system during that time but does not confirm safety or risk for any individual tap. Homeowners concerned about their specific water should consider separate testing for 1,2,3-TCP concentration in their household water.
How does water change at the tap when treated using the Pentair 1,2,3-TCP Filter?
When a household applies the Pentair 1,2,3-TCP Filter, the treated water delivered to the tap undergoes targeted reduction of chlorinated solvents including 1,2,3-trichloropropane. This treatment modifies the water quality by capturing or transforming the constituent, potentially improving aesthetic qualities and reducing the presence of TCP that might originate from environmental factors. While the community water system’s current record shows no detection above reporting levels, some homeowners may opt for such treatment as a precaution or for peace of mind regarding chlorinated solvent residues.
What method does the Pentair technology use to address 1,2,3-TCP?
The Pentair approach to managing 1,2,3-trichloropropane in water employs a filtration process designed specifically to target and reduce this chlorinated solvent from water streams at the point of consumption. This technology functions by adsorbing or chemically neutralizing the TCP molecules, operating through mechanisms proven effective against similar organic contaminants. It ships ready to configure for home use, enabling residential control over TCP levels without reliance on community treatment adjustments.
What do terms like 'detected', 'median', and 'range' signify in the EPA monitoring data?
In EPA’s UCMR3 data, 'detected' means that testing instruments measured a constituent above a certain laboratory reporting level, not that it was present above any legal or health-based threshold. A 'median' value would represent the middle number within a data set, but in this record, no TCP was detected above 0.03 µg/L, so median reporting is not applicable. The 'range' shows the span between the lowest to highest detected concentrations; here, the range for TCP was zero detections at or above the reporting limit. These data terms help clarify what monitoring found about water quality but do not alone define safety or risk for any specific household water.
The Magnolia Waterworks public water system in Columbia County was monitored under EPA’s UCMR3 rule from December 2013 through September 2014, with eight samples analyzed for 1,2,3-trichloropropane showing no detections above 0.03 micrograms per liter. This federal record covers the community water supply broadly and can be reviewed in detail at EPA’s public database for drinking water contaminants.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-09-10. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Magnolia Waterworks (AR0000109), AR: 8 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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