What Area Data Can and Cannot Reveal About 1,2,3-TCP in Your Water
Sampling conducted by the EPA under the Unregulated Contaminant Monitoring Rule (UCMR3) shows that the public water supply serving Fayetteville, Lincoln County, TN, operated by the Lincoln County Board of Public Utilities #1, has had no detections of 1,2,3-trichloropropane (commonly called 1,2,3-TCP or TCP) above the reporting level of 0.03 micrograms per liter (µg/L) from 2013 to 2015. This data covers surface water sources supplying roughly 23,846 residents across 9,733 connections.
It is important to understand that these results reflect overall system monitoring and do not reveal the concentration in any specific household's water. The only way to know your home's water quality is through a direct laboratory test of your tap water. Area data sets serve as a reference but cannot define individual well or tap water conditions.
Why the Reporting Level for 1,2,3-TCP Is Thousands of Times Lower Than for Common Metals
Unlike metals such as lead or iron, which are typically monitored at parts per million or higher, 1,2,3-TCP is screened at concentrations measured in parts per billion (ppb) or even lower—in this case, 0.03 µg/L (equal to 0.03 ppb). This extremely low reporting threshold reflects the compound’s chemical nature and the sensitivity required to detect trace amounts, not an implication of typical risk at those levels.
The low threshold exists to monitor emerging contaminants precisely because they may pose risks at much lower concentrations than metals or other common substances. This helps inform regulatory and consumer choices, even though no enforceable federal maximum contaminant level currently exists for 1,2,3-trichloropropane.
Why 1,2,3-Trichloropropane Resists Air Stripping and What That Means for Treatment Choice
1,2,3-TCP is a chlorinated solvent with relatively low volatility, meaning it does not easily transfer from water to air. This chemical resistance to air stripping limits the effectiveness of treatment methods that rely on aeration to remove volatile compounds. As a result, households considering treatment options for 1,2,3-TCP need to focus on alternative technologies proven to target this specific constituent.
What Happens When This Problem Is Left Untreated for Years, Stated Without Exaggeration
Because 1,2,3-TCP is a synthetic chlorinated solvent historically used primarily in soil fumigants and some industrial applications, long-term exposure at significant concentrations might raise concerns for some users. However, the Fayetteville water system records show no detections above reporting thresholds, indicating it is not a currently quantifiable issue in the public supply.
If household water were tested and found to contain measurable 1,2,3-TCP, chronic presence without mitigation could affect water aesthetics or require focused attention due to its chemical persistence. Addressing it promptly with appropriate filtration technology aligns with precaution and water quality best practices.
How to Compare This Area’s Record With a Neighboring County’s Without Overreading It
It may be tempting to compare Lincoln County’s 1,2,3-TCP data with neighboring counties; however, differences in land use, water sources, and sample sizes can affect results. For example, a nearby county may show sporadic detections, but that does not automatically imply greater risk or contaminant levels in your water supply.
Interpreting these records requires focus on system-wide monitoring rather than extrapolating individual household risk. Differences in reporting dates, detection limits, and water source types (groundwater vs. surface water) also influence these datasets.
The Agricultural Land-Use History of the Region and How It Maps Onto Detections
Lincoln County’s agricultural history includes use of soil fumigants and other chemicals in mid-20th century farming practices, which could contribute to legacy impurities such as 1,2,3-TCP in some groundwater. The current public water system’s zero detections at low reporting levels reflect either absence or effective dilution in surface water sources serving the community.
This historical context explains why regulators and consumers stay vigilant, but data for this utility shows no measurable 1,2,3-TCP contamination to date. Still, private wells or older infrastructure in the area might warrant individual testing if land use varies locally.
How the Treated Water Differs at the Tap Once the Documented Technology Is in Place
When 1,2,3-TCP is present in household water at detectable concentrations, treatment technology such as the Autotrol 1,2,3-TCP Filter, shipped ready to configure, offers a solution specifically designed to address this chlorinated solvent. The filtration process targets and reduces chlorinated solvents to levels typically below detection limits, providing reassurance of water clarity and taste improvement.
After treatment, water at the tap experiences a reduction in this constituent’s concentration, aligning with homeowner goals for water quality, although exact results depend on individual water chemistry and concentration starting points. This technology is an option for households weighing equipment classes for potential 1,2,3-TCP presence.
Next Steps: What Test Should You Order to Settle the Question for Your Household?
The definitive way to determine if 1,2,3-trichloropropane is a concern for your household water is a specialized laboratory analysis of your tap water for this specific constituent at or below the reporting level of 0.03 micrograms per liter. Such testing is separate from general water quality tests and ensures an accurate baseline for your decision-making.
If any measurable 1,2,3-TCP is found, considering the Autotrol 1,2,3-TCP Filter is a logical step to address this chlorinated solvent. Without that information, equipment choices should focus on confirmed water chemistry and constituents found in your home’s supply.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-07-07. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Lincoln County Board of Public Utilities #1 (TN0000764), TN: 16 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level