Autotrol 1,2,3-TCP Filter

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What a Laboratory Test Report Actually Shows

Federal occurrence surveys list measurements, not violations

The EPA's Unregulated Contaminant Monitoring Rule (UCMR3) includes data on 1,2,3-trichloropropane (1,2,3-TCP) collected for public water systems. A report lists concentrations as micrograms per liter (µg/L), sometimes called parts per billion (ppb). For Roanoke City's main public system managed by Western Virginia Water Authority, 41 samples tested from April 2014 to December 2015 showed no detections of 1,2,3-TCP above the minimum reporting level of 0.03 µg/L.

Why 1,2,3-Trichloropropane Resists Air Stripping and What That Means for Treatment Choice

1,2,3-TCP's chemical properties limit removal by air stripping

Being a dense chlorinated solvent, 1,2,3-TCP does not readily volatilize, making air stripping ineffective. Treatment methods aiming to address chlorinated solvents must consider this characteristic. Mechanical filtration technologies designed to capture or degrade TCP molecules are more appropriate. Understanding this helps a household select water equipment tailored to their needs.

The Agricultural Land-Use History of Roanoke City and How It Maps Onto Detections

Historical use of chlorinated solvents in agriculture relates to regional TCP traces

Regions with prior agricultural activities involving soil fumigants commonly report trace levels of TCP in water sources. Roanoke City's water supply area includes surface water that may receive run-off from neighboring lands with such history. However, presence or absence of TCP in water depends on multiple factors, and detections in a public system's samples are indicators at the system level, not at the individual household level.

How Public-System Records Differ From Private-Well Testing in What They Establish

Records reflect average system conditions, not individual homes

The EPA data for Western Virginia Water Authority covers thousands of connections and over 180,000 people. It represents system-wide sampling, not individual wells or household taps. A household's specific water quality can only be known through tailored laboratory analysis of their water source.

System records show no detections above reporting levels for TCP

This means that during federal monitoring, 1,2,3-trichloropropane was not measurable above the threshold of 0.03 µg/L in system samples. It is not a violation or a declaration of safety but a specification of what was detected at a system scale.

How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means

Data comes from 41 samples over a span of more than a year

The number of samples reflects a federal survey designed to understand occurrence broadly rather than continuous monitoring. Fewer samples mean less frequent snapshots. Individual water conditions can vary over time and location, so spot data must be viewed as part of a larger picture.

What Changes for a Large Household, a Second Home, or a Seasonal Property

Larger or seasonal residences may require tailored water-treatment capacity

Properties with higher water use or infrequent occupancy might face different operational demands on filtration equipment. Treatment devices such as the Autotrol 1,2,3-TCP Filter ship ready to configure, allowing adaptation to household size and usage patterns. Choosing appropriate capacity and maintenance routines is essential.

What the Measured Range Means Against the Relevant Federal Standard, and What It Does Not Mean

No federal maximum contaminant level (MCL) exists for 1,2,3-TCP

Though detected concentrations remain below reporting levels, there is no federally enforceable limit for 1,2,3-trichloropropane in drinking water. Therefore, absence of reported exceedances does not equate to compliance with a legal limit, nor does it confirm a health risk or safety. It is a preliminary, system-wide occurrence measure to inform further research and potential regulation.

Detection above reporting levels is not the same as a violation

All measurements must be understood in context. A did-not-detect result means levels were below the instrument's threshold, not that the constituent is entirely absent. Similarly, detection indicates measurement but not necessarily a problem.

What You Should Not Conclude From Area Data

Area-level results do not define your home's water quality

Government monitoring in Roanoke City public water systems provides valuable information about the general occurrence of 1,2,3-TCP. However, it does not reveal the chemical makeup of any individual home's tap water. To confirm the presence or absence of the chlorinated solvent in your household water, personal laboratory analysis is necessary.

Data does not indicate any law violation or health-based failure by the public water system

The Western Virginia Water Authority has recorded no EPA health-based violations specifically for 1,2,3-trichloropropane during the reported period. This means the system meets federal requirements but does not preclude ongoing monitoring or future action.

Addressing Your Household’s Potential 1,2,3-TCP Concerns

For homes seeking additional assurance about the removal of 1,2,3-trichloropropane, the Autotrol 1,2,3-TCP Filter employs advanced filtration technology designed to reduce TCP at the point of water use. This equipment ships ready to configure according to household size and water usage, offering a concrete option for water treatment focused on this constituent.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-12-17. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Western Virginia Water Authority (VA2770900), VA: 41 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level