Fleck VOCs & Industrial Chemicals Filter

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The Waterworks Board of Prattville’s public water system, serving over 46,000 people in Autauga County, is supplied by surface water.

Federal monitoring from 2013 to 2015 detected no 1,1-dichloroethane, chloromethane, bromomethane, HCFC-22, 1,3-butadiene, or MTBE above reporting levels, with only one detection of halon 1011 at the reporting limit of 0.06 micrograms per liter (0.06 parts per billion). These results cover the entire system, not individual household taps, and no health-based violations have been recorded.

1. How Seasonal Water-Table Changes Move a Solvent Plume Relative to a Well Screen

Volatile solvent compounds can shift position in groundwater depending on seasonal water-table variations that alter flow direction and velocity. Although Prattville’s system uses surface water, private wells in Autauga County may experience changes in solvent presence linked to seasonal groundwater dynamics.

Understanding these shifts is essential when evaluating VOC presence near well screens or intake points because contaminants may concentrate or disperse differently throughout the year.

2. Why a Granular Activated Carbon Bed Is Sized for Contact Time Rather Than Flow Alone

Volatile organics like many VOCs require sufficient contact time with a granular activated carbon (GAC) bed for effective removal. Sizing such a system cannot rely solely on flow rate because rapid flows reduce carbon exposure and treatment efficiency.

Instead, the carbon bed’s volume and configuration are designed to maximize the duration water remains in contact with the adsorptive media, allowing volatile compounds to be captured before water moves onward.

3. The Order in Which to Rule Things Out, From Cheapest Check to Laboratory Test

• Confirm no household plumbing components or storage tanks are sources of solvent odors or VOCs.
• Verify system flushing or recent maintenance that might temporarily influence results.
• Obtain a certified laboratory test specifically measuring volatile organic compounds to establish local water conditions.

Because public water records cover system-wide sampling, only a laboratory test of your household supply can confirm specific VOC concentrations at your tap.

4. How Seasonal or Multi-Year Variation Shows in the Record (Dates and Ranges Given)

The federal UCMR3 occurrence data for the Waterworks Board of Prattville spans monitoring from January 2002 through December 2014, with specific VOC monitoring from 2013 to 2015. Throughout this period, detections remained at or below reporting levels for all listed volatile compounds except for a single detection of halon 1011 at the reporting limit.

This long-term data set shows no substantial fluctuation or upward trend in VOC occurrence, illustrating stable water quality with respect to these industrial chemicals over time.

5. What a Laboratory's Method Detection Limit Means When a Compound Is 'Not Detected'

A 'not detected' result in certified lab testing means the compound’s concentration is below the method detection limit — the smallest concentration the lab can reliably measure. It does not mean the compound is absent, only that it was not measurable above this threshold.

For example, for 1,1-dichloroethane, this limit is 0.03 micrograms per liter (0.03 ppb). Household tests revealing concentrations below detection limits indicate that if present, VOCs occur at very low levels.

Understanding detection limits helps interpret results realistically and guides whether further action, like filtration, is warranted.

Closing: The Single Test to Order and What Result Settles the Question

To clarify the presence and levels of volatile organic compounds in your household water, request a certified laboratory VOC analysis tailored to drinking water. Such a test measures concentrations against method detection limits, defining if VOCs are present and at what levels.

If results show concentrations at or below detection limits, your water's VOC levels align with the Waterworks Board of Prattville’s stable record, and treatment might not be necessary. If VOCs are detected at higher levels, a filtration system designed for VOC removal, such as the Fleck VOCs & Industrial Chemicals Filter, ships ready to configure and can be a documented solution to reduce these compounds effectively.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2014-12-18. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Waterworks Board of Prattville (AL0000017), AL: 170 results across 7 listed contaminants, 1 detections above the reporting level; no federal MCL for these UCMR-listed VOCs