Pentair 1,2,3-TCP Filter

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What a Lab Report Shows for 1,2,3-Trichloropropane in Portage Water

When a laboratory tests water in Portage for 1,2,3-TCP, the report provides concentrations measured in micrograms per liter (µg/L), equivalently parts per billion (ppb). Testing often uses a reporting level of 0.03 µg/L, a threshold set to detect very low traces of this chlorinated solvent. Reports list either a value at or above this level or note that 1,2,3-TCP was not detected if below that limit. Understanding this threshold helps interpret what it means to find or not find 1,2,3-trichloropropane in your water sample.

Why Reporting Levels for 1,2,3-TCP Are Much Lower Than for Metals

The reporting level for 1,2,3-TCP is thousands of times lower than typical reporting levels for common metals tracked in water. This is because 1,2,3-TCP, a chlorinated solvent, is found at much lower concentrations and requires highly sensitive analytical methods. It’s not a measure of regulatory safety limits but a detection capability reflecting modern laboratory precision. The low reporting level helps ensure early identification, even of minute traces of TCP in groundwater sources supplying Portage.

Regional Agricultural History and 1,2,3-TCP Presence

Portage and surrounding Kalamazoo County have an agricultural land-use history dating back decades. Soil fumigants containing TCP-related compounds used primarily from the 1950s through the 1980s can slowly leach into groundwater over many years. This historical use explains why federal monitoring programs have tested groundwater-based public systems like Portage’s for 1,2,3-TCP, looking for its potential traces derived from past agricultural practices.

What EPA Public Water System Records Reveal Versus Private Well Tests

The EPA's unregulated contaminant monitoring survey for Portage covers the public water system serving over 46,000 people and nearly 9,350 connections. The system’s records from 2013 to 2015 show 22 samples tested for 1,2,3-TCP with none exceeding the 0.03 µg/L reporting level—meaning none were detected above that threshold. This data reflects water quality at the system source and within distribution, not individual household plumbing or private wells, which may have different conditions. Homeowners should consider private testing if they source water from a private well to assess their specific water quality.

Legacy of a Soil Fumigant Impurity Now in Groundwater

1,2,3-trichloropropane is a legacy chemical impurity historically found in soil fumigants used decades ago. The compound’s chemical stability allows it to persist and migrate slowly downward through soil layers, eventually reaching groundwater aquifers. This long travel time explains why measurements occur long after fumigant use declined. Its presence at low levels in groundwater does not itself indicate current use but reflects decades-old agricultural inputs slowly moving through the environment.

Maintenance and Operation of the Pentair 1,2,3-TCP Filter Technology

To address 1,2,3-TCP in residential water, the Pentair 1,2,3-TCP Filter technology offers a solution tailored for household use. This system ships ready to configure with your home plumbing setup and relies on specialized filtration media designed to target chlorinated solvents effectively. Maintenance involves periodic media replacement based on usage and water quality, ensuring continued performance. Clear guidance from the manufacturer helps homeowners plan the rhythm of upkeep without needing professional service visits.

What Not to Conclude from Area 1,2,3-TCP Data

Homeowners in Portage should not assume their own water contains detectable 1,2,3-TCP or that public system data substitutes for private well testing. The EPA data reflects system-wide sampling with none of the tested samples measuring above the low reporting level. This does not guarantee individual water conditions but provides a baseline context. Decisions on water treatment should be based on actual test results of the water drawn at the home before selecting technology. The Pentair 1,2,3-TCP Filter can be considered if testing reveals the presence of this constituent at or above concern levels for a household.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2013-10-10. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Portage (MI0005520), MI: 22 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level