Measured 1,2,3-TCP Concentrations Versus Federal Standards in Fresno
Government monitoring of the City of Fresno's public water system recorded 1,2,3-trichloropropane (TCP) detections between August 2013 and December 2015. Among 386 samples, eight showed levels above the reporting threshold of 0.03 micrograms per liter, with the highest measured concentration at 0.15 micrograms per liter and a median of detected values at 0.054 micrograms per liter. Notably, there is no federally established Maximum Contaminant Level (MCL) for 1,2,3-TCP, so these detections do not represent a regulatory violation or a measure of safety or risk. Instead, these figures indicate measurable presence of the compound in the system's surface water supply but do not imply that water at any individual connection exceeds a health-based limit.
Public Water System Records Compared to Private Well Testing
Data gathered for the public water system represents aggregated measurements from the system serving over 545,000 people across Fresno through 144,185 connections. This reflects water quality in the surface water source and distribution network overall but cannot establish the precise condition of water at any particular household faucet. Conversely, private well testing provides site-specific data reflecting the unique geology and conditions affecting an individual property’s water supply. To determine actual 1,2,3-TCP levels at a home, conducting a certified laboratory analysis of water samples from that residence is necessary. Relying solely on public system records can guide understanding of general regional presence but should not replace personal water testing when treatment decisions are at stake.
How the Pentair 1,2,3-TCP Filter Removes This Constituent
The Pentair 1,2,3-TCP Filter uses a specialized filtration technology designed to reduce the concentration of 1,2,3-trichloropropane in household water. By passing water through media optimized for adsorbing this compound, the system captures and significantly lowers 1,2,3-TCP before it reaches taps. Because 1,2,3-TCP can be persistent in water, this targeted approach addresses the contaminant effectively, enhancing water quality for residential use. The system ships ready to configure for household plumbing setups, allowing users to choose treatment appropriate to their water quality data.
Fixtures and Appliances Most Impacted by 1,2,3-TCP Presence
When 1,2,3-TCP occurs in drinking water, the first points of contact within a home include faucets, ice makers, and any appliances using water for consumption. Water heaters and washing machines use water not intended for direct ingestion, but elevated concentrations could contribute to odor or taste issues that households may notice. Filtration addressing 1,2,3-TCP at the main water entry or point of use ensures protection of drinking water fixtures and appliances that influence water quality and experience directly.
Reading Certified Laboratory Reports for 1,2,3-TCP
Laboratory tests for 1,2,3-TCP quantify the compound’s concentration in micrograms per liter (µg/L or parts per billion). Test reports typically show the reporting level, detected values if above that level, and any relevant limits or reference information. Since no federal MCL exists for 1,2,3-TCP, test results must be interpreted with context—detecting TCP is not a violation or confirmatory of a health risk by itself. Instead, test findings guide whether treatment like the Pentair 1,2,3-TCP Filter is advisable based on the presence and level measured in an individual home’s water.
Comparing Fresno’s 1,2,3-TCP Record with Neighboring Areas
While Fresno’s public water system recorded intermittent 1,2,3-TCP detections with a maximum near 0.15 µg/L, neighboring counties may show different occurrence frequencies or concentrations due to variations in water sources and local environmental factors. Comparing these regional data sets can provide a broader perspective on 1,2,3-TCP presence but should not be used to infer specifics for any given home. Each area’s results represent conditions for their distinct public water systems, emphasizing the importance of local testing when evaluating treatment needs.
Summary: This overview distinguished what government-supplied 1,2,3-TCP data for Fresno's public water system reveals and does not reveal about household water quality. It outlined the difference between broad system data and individual home testing, and described how the Pentair 1,2,3-TCP Filter addresses this contaminant, assisting residents in informed treatment decisions.
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 City of Fresno (CA1010007), CA: 386 results across 1 listed contaminants, 8 detections above the reporting level; no federal MCL
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