Autotrol 1,2,3-TCP Filter

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Agricultural Land Use History and 1,2,3-TCP Detections in Hartford County

The Hartford County water supply serving Glastonbury, Manchester, South Windsor, and Vernon relies on surface water sources. Historically, parts of this region's landscape were associated with agricultural practices that included soil fumigants containing 1,2,3-trichloropropane, a chlorinated solvent impurity used primarily from the 1950s through the 1980s. Although agricultural land use has declined, residual traces of 1,2,3-TCP have been measured occasionally in the public water system, as documented by federal monitoring.

How 1,2,3-Trichloropropane from Past Soil Fumigation Has Reached Groundwater Decades Later

1,2,3-Trichloropropane is a legacy chemical impurity found in soil fumigants applied many decades ago. Its chemical stability allows it to persist in the environment and migrate slowly through soil and rock layers. Over time, this results in delayed appearance in aquifers and surface water bodies that feed the region's water supply. This slow migration explains why 1,2,3-TCP is still detectable in water despite no current use in the area.

Migratory Pathways of 1,2,3-TCP into Hartford County’s Public Water Sources

The chlorinated solvent 1,2,3-trichloropropane does not readily degrade, allowing it to travel through subsurface water channels. In this region, surface water sources can contain small concentrations when upstream soil or groundwater carries residual contamination. The Manchester Water Department’s monitoring from 2013 to 2015 recorded a single detection of 1,2,3-TCP at 0.078 micrograms per liter (µg/L), equivalent to parts per billion (ppb), among 16 samples. This isolated presence confirms the constituent’s occasional entry into the water system but does not reflect a consistent or widespread condition.

Reading the Public Water System's 1,2,3-TCP Record as a Homeowner

The federal occurrence survey results for 1,2,3-trichloropropane in Manchester's water system show one detection above the reporting level of 0.03 µg/L, with the median of detections at 0.078 µg/L. Homeowners should understand that these figures describe system-wide measurements from 2013 to 2015 and do not specify individual household water quality. To know the exact concentration in personal water, onsite testing is necessary. The presence of 1,2,3-TCP in this range is below any federal maximum contaminant level because no such limit currently exists, indicating no recorded health-based violations for this chemical from this system.

Assessing Household Treatment Capacity Relative to Daily Water Usage

When existing water treatment equipment struggles to maintain desired water quality levels for constituents like 1,2,3-trichloropropane, understanding daily household demand is essential. Treatment technology designed for 1,2,3-TCP must address the volume of water used daily to ensure adequate contact time for reducing this chlorinated solvent to low concentrations. Considering factors such as household size and water usage patterns helps determine the required capacity, so equipment performs effectively without being overwhelmed.

Comparing 1,2,3-TCP Occurrence in Hartford County with Neighboring Areas

Neighboring counties may show different profiles for 1,2,3-trichloropropane detections due to variations in historical land use, water source types, and hydrologic conditions. It is important to interpret these differences cautiously since public system records represent overall system conditions, not individual wells or homes. Comparing Hartford County's documented detections with those from nearby locations should not lead to assumptions about specific household water quality but can provide context about regional presence of this chlorinated solvent.

Deciding how to address 1,2,3-trichloropropane presence in household water starts with understanding public water system monitoring results and their limitations. Homeowners served by the Manchester Water Department can use these records to gauge regional conditions but should conduct personal water testing to confirm their own water's composition. If treatment beyond existing equipment capacity is needed, the Autotrol 1,2,3-TCP Filter ships ready to configure to meet daily household water demand and reduce contact with this chlorinated solvent effectively.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2014-12-15. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Manchester Water Department (CT0770021), CT: 16 results across 1 listed contaminants, 1 detections above the reporting level; no federal MCL