Reviewing Boyd County's Agricultural Impact on 1,2,3-Trichloropropane
Agricultural Land-Use Patterns Correlate with 1,2,3-TCP Presence
Boyd County's water system, served by the Big Sandy Water District, draws from surface water influenced by the county's agricultural history. The use of soil fumigants during the mid-20th century has led to detectable levels of chlorinated solvents, including 1,2,3-TCP, in regional water samples. Understanding these patterns helps contextualize the presence or absence of this compound in your source water.
Historical Soil Fumigants and Their Delayed Groundwater Appearance
Legacy Effects from 1950s-1980s Soil Treatments
The chlorinated solvent 1,2,3-trichloropropane was an impurity in soil fumigants commonly applied several decades ago. Over time, this compound has seeped through soil layers, reaching groundwater sources slowly but persistently. While the Big Sandy Water District relies on surface water, these legacy contaminants can still influence the overall water quality in the area served.
Interpreting Water Sampling Data as a Homeowner
Reading the Median and Range of 1,2,3-TCP in Boyd County Water
Between 2013 and 2015, the Big Sandy Water District conducted federal monitoring for unregulated contaminants, including 1,2,3-TCP. In 16 tests during this period, none detected 1,2,3-trichloropropane above the reporting level of 0.03 micrograms per liter (0.03 parts per billion). This means measurements were below the threshold to report presence, not that the compound is absent in every sample. Homeowners should understand these figures as part of regional monitoring rather than individual well results.
Considering Plumbing Materials and System Age Separately from Source Water
Water Quality Can Vary Within Homes Independently of Supply
The Big Sandy Water District's data describes the community water source, not individual household plumbing conditions. Factors such as pipe material, age, and in-home plumbing design can affect water taste, clarity, and other aesthetic factors without changing the regional source's measured 1,2,3-TCP levels. Testing your household water is necessary to assess its specific condition.
What the Sampling Data Means Regarding Federal Standards
No Federal Maximum Contaminant Level Exists for 1,2,3-TCP
The United States Environmental Protection Agency has not established a maximum contaminant level (MCL) for 1,2,3-trichloropropane. The absence of an MCL means there is no legally enforceable limit but does not imply the water contains unsafe levels. The data show no detections above the reporting threshold, indicating compliance with current federal monitoring criteria but do not guarantee individual household conditions.
Clarifying Terms in the Water Quality Record
Understanding 'Detected', 'Median', and 'Range' in Context
In the Big Sandy Water District's public water system record, 'detected' means the equipment measured a concentration at or above the reporting level. 'Median' indicates the middle value of a set of measurements, and 'range' shows the lowest and highest measurement recorded. None of the 1,2,3-TCP results from 2013 to 2015 exceeded the reporting level. Remember that these terms describe regional data, not individual taps.
Deciding how to manage 1,2,3-trichloropropane concerns for your household begins with interpreting this regional water quality dataset. For individual assurance, testing your home's water is necessary. The Pentair 1,2,3-TCP Filter ships ready to configure and is documented for addressing this chlorinated solvent when present in residential water supplies. It offers a direct-purchase solution to help households manage 1,2,3-TCP when testing shows its presence.
This page reflects the scope of the Big Sandy Water District's water system record for Boyd County, KY, sourced from the EPA's Unregulated Contaminant Monitoring Rule data. For more detailed information, consult the EPA SDWIS public water system database.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-05-29. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Big Sandy Water District (KY0100944), KY: 16 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level

