Household Water Challenges with 1,2,3-TCP in Plymouth County Massachusetts
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Whole House 1,2,3-TCP Reduction Water Filter System - Trichloropropane Removal
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Whole House 1,2,3-TCP Reduction Water Filter System - Trichloropropane Removal
Understanding 1,2,3-Trichloropropane’s Persistence in Water Treatment
Resistance to air stripping limits removal options
1,2,3-trichloropropane, also called TCP, is a chlorinated solvent notable for its chemical stability. It does not readily evaporate from water, making air stripping—a treatment that relies on volatilization—ineffective. This means treatment approaches typically require adsorption or filtration technologies rather than aeration methods.
Interpreting the Federal Monitoring Data for Marshfield's Water
Zero detections above reporting levels from 2013 to 2015
Environmental Protection Agency data from the Marshfield Water Department, which serves approximately 34,000 residents through 11,000 connections, show no detection of 1,2,3-TCP above the reporting level of 0.03 micrograms per liter (also understood as 0.03 parts per billion). The EPA has not established a maximum contaminant level (MCL) for 1,2,3-trichloropropane, so the absence of detections above this threshold indicates the chlorinated solvent was either absent or below the level that the federal survey monitors, rather than confirming the complete absence of TCP in all water.
Variation in 1,2,3-TCP Levels Over Time
Consistent results during monitoring period from early 2015 to mid-2015
The federal occurrence survey sampled water from January 12 to July 23, 2015. During this period, no sample exceeded the detection limit in the public water system serving Marshfield. This suggests that within this six-month span, the water remained stable with respect to 1,2,3-TCP concentrations at or below 0.03 micrograms per liter. Longer trends beyond this window are not recorded in this data set.
Sources of 1,2,3-Trichloropropane in Marshfield's Groundwater
Historical use and environmental persistence
1,2,3-TCP historically has been linked to industrial solvents and soil fumigants, which can infiltrate groundwater supplies through past usage and contamination sites. Since Marshfield’s water supply relies on groundwater, trace levels of this chlorinated solvent can originate from residual contamination in the aquifer or from nearby land uses. The data do not specify how TCP might enter the local distribution system, but groundwater sourcing implies any TCP would originate before treatment and delivery.
Additional Considerations for Non-Residential Water Users
Commercial and industrial monitoring requirements differ
Operators of commercial or industrial facilities in Marshfield face distinct regulatory and operational questions concerning TCP and similar substances, including more frequent water quality testing, exposure risk assessments, and potential treatment upgrades aligned with regulatory limits for business operations. Households primarily focus on practical management of water quality for daily use, though knowing system-wide data helps inform those choices.
Summary and Next Steps
The water system record for Marshfield, Plymouth County, Massachusetts, documents no detectable 1,2,3-trichloropropane above 0.03 micrograms per liter in the 2013-2015 EPA UCMR3 monitoring period, with no federal MCL established for this chlorinated solvent. This record reflects the system-wide groundwater source serving 34,000 people through about 11,000 connections, not any individual household's water quality. For homeowners whose existing treatment equipment struggles to keep pace with water quality demands related to chlorinated solvents, a specialized C-Series 1,2,3-TCP Filter, shipping ready to configure, offers a documented approach to manage this issue. Detailed testing of private water at the tap is required to determine an individual home's specific TCP levels. Official source data can be viewed via EPA public water system records.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-07-23. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Marshfield Water Department (MA4171000), MA: 24 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level