The Bennington Water Department in Bennington County, Vermont, sources its public water from surface waters serving over 13,000 people across nearly 7,000 connections. This water travels from natural and managed reservoirs through treatment and distribution before reaching residential taps. Recent federal data from the EPA's Unregulated Contaminant Monitoring Rule (UCMR3) sheds light on the presence of chromium-6, also called hexavalent chromium or chromium(VI), in this system's water.
Myth: Hexavalent Chromium in Bennington Comes Mainly From Industrial Plating Sources
While hexavalent chromium can originate from industrial activities such as plating, the EPA's data for Bennington's public water system points to surface water sources where geogenic chromium-6—in other words, hexavalent chromium naturally occurring in the environment—could be a factor. The highest detected chromium-6 concentration was 0.094 micrograms per liter (µg/L), or parts per billion (ppb), well below any federal health-based maximum contaminant level (MCL). This suggests the chromium-6 detected arises from the natural background or environmental presence rather than a specific industrial discharge in the system's source area.
Myth: The Twelve Samples Represent the Entire Water Supply's Chromium-6 Level
The EPA sampling for chromium-6 in Bennington included 12 measurements, all detecting chromium-6 above the reporting level of 0.03 µg/L, with a median of 0.068 µg/L. However, these 12 samples represent a limited snapshot and do not capture every variation within the entire public water system. The small number of samples means results provide an indication of presence but cannot establish an exact, comprehensive profile for each household’s water. Individual home testing is required to determine specific water quality at the tap.
Myth: Sampling Depth and Water Source Type Do Not Affect Chromium-6 Expectations
Sampling for Bennington’s system involved surface water sources, which generally differ from groundwater wells in how chromium-6 is present and behaves. Surface waters are influenced by runoff and watershed characteristics, often diluting and varying hexavalent chromium concentrations more than groundwater which may accumulate geogenic metals differently. The depth and type of well or source at any individual property will influence chromium-6 presence, so information from the public system provides context but not a direct measurement for private wells.
Myth: Chromium-6 Levels Remain Constant Over Time in Bennington Water
EPA monitoring occurred between February and November 2013 and reflects a range rather than a single consistent level. The highest chromium-6 reading was 0.094 µg/L while the median among detections was 0.068 µg/L, demonstrating some seasonal or temporal variation in chromium-6 within the public water system. Without continuous or more recent monitoring data, it’s reasonable to expect small fluctuations over time depending on weather, water source changes, and treatment adjustments.
Myth: All Household Fixtures and Appliances Are Equally Affected by Chromium-6
Chromium-6 at the detected levels primarily impacts water quality aspects that concern taste and aesthetics rather than immediate health. Appliances and fixtures that directly contact water, such as showers and drinking taps, are where concerns about chromium-6 presence arise. Understanding how chromium interacts with plumbing materials and treatment options can help households address any detectable chromium-6 before use in drinking or cooking.
Myth: Household Size or Seasonal Use Does Not Influence Chromium-6 Treatment Needs
Larger households or properties used seasonally may require different water treatment capacity or frequency to address chromium-6 presence effectively. Variations in water usage, flow, and storage impact how any treatment system performs. For households considering treatment options for chromium-6, these factors matter in selecting a solution sized and configured for their specific water use pattern.
Testing to Determine Household Treatment Needs
To know the chromium-6 level in your individual water supply, the single definitive step is to order a certified water test specific for hexavalent chromium from your tap water. Such a test report will provide the concentration in micrograms per liter or parts per billion in your actual household water.
For homes in the Bennington public water system detected with chromium-6 at the levels documented by EPA, a documented treatment option is the C-Series Chromium-6 Filter. This system ships ready to configure and addresses chromium(VI) in residential tap water, helping homeowners manage chromium-6 presence based on their specific test results and household requirements.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2013-11-12. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR3 monitoring (2013-2015) for Bennington Water Department (VT0005016), VT: 24 results across 2 listed contaminants, 13 detections above the reporting level; no federal MCL for hexavalent chromium; total chromium MCL 100 ug/L