Local Water Source and Treatment Context
The public water supply serving Clinton, Guilford, Madison, Old Saybrook, Westbrook, and much of New Haven County is drawn from surface water sources managed by CT Water Co. - Shoreline R., Guilford S. This system provides water to approximately 33,975 residents across 18,424 connections. As a surface water system, treatment and monitoring practices are designed to ensure water quality meets established health-based standards.
1. Agricultural Land Use and Recorded 1,2,3-Trichloropropane Occurrence
The surrounding region has a historic footprint of agricultural activity where soil fumigants, containing impurities like 1,2,3-trichloropropane (TCP), were applied decades ago. While such chlorinated solvents can persist in the environment due to their chemical stability, EPA monitoring from 2013 to 2015 for this public water system found no detections above the reporting level. This indicates either absence or levels below detection in the treated water provided to customers in the covered towns.
2. Air Stripping Limitations for 1,2,3-Trichloropropane Treatment
1,2,3-TCP is a volatile organochlorine solvent but resists removal by air stripping methods commonly effective for volatile contaminants. This resistance is due to its low Henry's law constant, limiting its transfer from water to air. Thus, air stripping is not the optimal choice for addressing chlorinated solvents like TCP in household water supplies. Instead, adsorption-based technologies are typically recommended for effectively reducing this compound.
3. Understanding the Reporting Level's Stringency Compared to Metals
The reporting level for 1,2,3-TCP in EPA’s Unregulated Contaminant Monitoring Rule (UCMR) is set at 0.03 micrograms per liter (or 0.03 parts per billion), reflecting the analytical sensitivity required to detect this contaminant at trace levels. This is thousands of times lower than detection thresholds established for many common metal contaminants because TCP's potential health effects warrant careful monitoring despite the absence of a federal maximum contaminant level (MCL).
4. Adjusting Treatment Capacity for Household Size and Usage Patterns
For larger households or seasonal properties in these towns, treatment equipment choices should consider the daily water demand to maintain effective chlorinated solvent management. Increased water use impacts how often filtration media requires replacement or regeneration, affecting long-term operational effectiveness. Systems designed for smaller households may not provide optimal contact time or capacity for larger or multiple-use properties.
5. Interpretation of 'Detected', 'Median', and 'Range' in Local Sampling Records
The 2013–2015 EPA sampling for CT Water Co. detected zero instances of 1,2,3-TCP above the 0.03 μg/L reporting level. ‘Detected’ means a measurement above this threshold, while ‘median’ and ‘range’ describe the statistical distribution of detected levels. Since no detections occurred, the median and range are not applicable but indicate consistent non-detection during this monitoring period. This reflects stable low concentrations or absence in the system rather than a health-based violation.
Closing Note
These data and observations pertain only to the public water system serving New Haven County towns listed, based on EPA UCMR3 monitoring records. Individual household water quality may differ and requires specific testing to determine actual 1,2,3-trichloropropane presence. For consumers seeking treatment solutions, devices that ship ready to configure and employ adsorption technology effectively address potential chlorinated solvent presence. The EPA public water system record remains the authoritative government source for regional water quality insights.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2014-11-18. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for CT Water Co. - Shoreline R., Guilford S. (CT0608011), CT: 20 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.