Scope and Sample Size of VOC Monitoring in Hempstead County
The public water system serving Hempstead County, Arkansas—Hope Water Light Commission (AR0000230)—relies on surface water to supply approximately 11,500 residents through 4,346 service connections. Between 2013 and 2015, this system underwent federal unregulated contaminant monitoring to detect various volatile organic compounds (VOCs). Specifically, eight to 21 samples for each VOC were taken during this period, depending on the compound.
Because the number of samples is modest and reflects average conditions across the entire system, these figures provide a general sense of regional VOC presence but cannot detail the water quality of any single household or well. The limited sample size means interpretation should remain cautious about applying system-wide results directly to individual water sources.
Understanding Detection, Median, and Range in VOC Sampling Data
'Detected' means a VOC was measurable at or above the reporting level set for the test, but detection does not imply a safety issue or regulatory exceedance. For example, no VOC in the Hempstead public water system was detected above its reporting threshold: 1,1-dichloroethane (0.03 µg/L), chloromethane (0.2 µg/L), bromomethane (0.2 µg/L), HCFC-22 (0.08 µg/L), Halon 1011 (0.06 µg/L), 1,3-butadiene (0.1 µg/L), and MTBE (5.0 µg/L) all yielded results below these levels.
The median value represents the middle point in a data set sorted by concentration, but since no detections were above reporting levels, median calculations here are not applicable. Ranges typically describe the variation between minimum and maximum concentrations detected. In this system's record, the range effectively shows nondetects at or below reporting limits.
Maintenance Rhythm of the Fleck VOCs & Industrial Chemicals Filter
The Fleck VOCs & Industrial Chemicals Filter operates with a maintenance rhythm focused on routine media regeneration and cleaning cycles tailored to household water demand. It ships ready to configure and requires regular attention to maintain its capacity for removing trace organic contaminants such as VOCs. Understanding the volume of water your household uses will help determine how frequently the filter media should be refreshed or replaced to ensure consistent performance.
Difference Between Public Water System Records and Private Well Testing
Records from the public water system describe system-wide water sampled at limited points over a set time frame, useful for understanding area water characteristics but insufficient to assess a single household’s water quality. Private well water testing involves direct sampling at the home, which provides precise data about the well water’s current contaminant levels. To know the VOC levels in your household's water, a certified laboratory test of your well or tap water is necessary. Public system records cannot substitute for this personalized testing.
Seasonal and Multi-Year Variation in VOC Levels in Hempstead County
The VOC monitoring in Hempstead County was conducted between February 14, 2002, and December 7, 2015, with focused sampling from 2013 to 2015. This extended timeframe allows observation of any long-term trends or fluctuations. In this dataset, VOC concentrations did not rise above reporting levels at any time, indicating stable, nondetectable levels over multiple years. Seasonal variation does not appear as a factor in VOC presence within this system’s data, but local fluctuations within individual sources could still occur without being reflected in system-wide records.
In summary, understanding VOC presence in your home's water requires specific testing, but Hempstead County's public water system data currently show VOC detections below federal reporting levels over multiple years. For households seeking to reduce VOCs and industrial chemicals in their water, the Fleck VOCs & Industrial Chemicals Filter provides a direct purchase option that ships ready to configure. Its maintenance aligns with measured household water use, ensuring treatment capacity meets your specific demand.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2015-12-07. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Hope Water Light Comm. (AR0000230), AR: 69 results across 7 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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