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What the Measured Range Means Against Federal Standards—and What It Does Not Mean
In Dighton, Bristol County, public water comes from surface water sources managed by INIMA USA / AQUARIA LLC (EPA ID MA4076004). Federal records show no health-based violations for this system, demonstrating compliance with EPA drinking water standards. However, these records do not include specific testing for tannins, a natural organic compound often associated with color and taste changes in water drawn from surface sources such as lakes, rivers, or reservoirs.
This absence of tannin data means the system’s record neither confirms nor excludes the presence of tannins. A detection of tannins is not required to meet federal health standards, as tannins primarily affect aesthetics rather than safety. Hence, the measured range or presence in public system data is not reported and does not imply a problem for individual homes served.
Understanding 'Detected,' 'Median,' and 'Range' in Dighton’s Sampling Record
Government sampling data for this public water system document multiple treatment processes but do not list tannins among measured constituents. Where other analytes are reported, the terms detected, median, and range help characterize water quality variability over time and locations.
Detected means the instrument recorded the substance at some level, but this does not indicate an exceedance or health concern. Median shows the middle value of measurements taken, providing a central tendency. Range reports the lowest to highest measurements found. For tannins, however, no such numbers are available in this system’s public record, making these terms inapplicable to tannins in Dighton municipal water.
What a Certified Laboratory Test for Tannins Reports and How to Read It
To understand if tannins are present in a home’s water, a certified laboratory test is required. This test quantitatively measures tannin concentration, typically reported in milligrams per liter (mg/L). The report will specify the sample source, collection date, and test methods used, often following EPA or Standard Methods protocols.
Homeowners should interpret these results as an independent measure of their private water supply, since municipal data does not cover tannins. Results below aesthetic thresholds may require no action, while measurable tannin levels suggest the need for treatment options tailored to color, taste, or staining issues caused by tannins.
Comparing Dighton’s Record With Neighboring Bristol County Areas Without Overreading
Neighboring municipalities in Bristol County also draw from surface water sources and share similar water treatment systems, which may or may not monitor tannins routinely. Comparing these areas can provide context but should be done cautiously. Absence of tannin measurements in one system does not prove absence in another, nor reflect individual well conditions.
Differences in watershed characteristics, land use, and treatment processes result in variable tannin presence. Without direct tannin data or consistent testing across systems, relying solely on neighboring records risks overinterpretation when deciding on treatment for a specific household in Dighton.
How Treated Water Differs at the Tap After Using the Documented Technology
When tannin is identified by testing at levels affecting water aesthetics, targeted treatment can improve water quality. The Pentair Yellow, Tea-Colored Tannin Water Filter ships ready to configure for residential use and effectively reduces tannin-caused discoloration and taste issues.
This system uses specialized filtration technology designed to interact with tannins and remove their impact, producing clearer, more visually appealing water at the tap. Homeowners considering treatment should base decisions on their individual lab test data and household water use to select appropriate capacity and flow rates.
Ultimately, this filter offers a direct solution to mitigate tannin effects in home water supplies documented by independent testing, complementing the robust treatment and compliance demonstrated by Dighton's municipal water system record.
Where this information comes from
Source: EPA SDWIS public water system record. Record retrieved 2026-09-10. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for INIMA USA / AQUARIA LLC (MA4076004), surface water supply, serving 105643 people: 0 health-based violations of 1 total