This week, you face a key decision: how to approach perchlorate in your household water when local measurements show its presence but not its level in your own supply.
Recognizing Household Symptoms Related to Perchlorate
Perchlorate itself has no distinct taste, odor, or color, so its presence usually doesn't produce noticeable effects in water quality or household plumbing. If you observe unusual tastes or smells, or staining, these likely result from other water factors, not perchlorate. Because perchlorate does not cause immediate sensory changes, symptoms common to water issues like hardness or iron do not point to perchlorate contamination.
Understanding Certified Laboratory Testing for Perchlorate
The only way to know perchlorate levels in your home’s water is through a certified laboratory test specific to your water source. Such tests report perchlorate concentration in micrograms per liter (µg/L). For Westerly’s public water system, government sampling from 2003 showed all 20 tests recorded perchlorate below the federal reporting level of 4.0 µg/L. However, these results reflect system-wide groundwater sourcing, not individual household plumbing or private wells. Testing your own water is the definitive step to determine perchlorate levels specific to your residence.
Health-Based Standards vs. Aesthetic Secondary Standards Regarding Perchlorate
At the federal level, there is no Maximum Contaminant Level (MCL) established specifically for perchlorate. Government data for the Westerly Water Department shows zero health-based violations among monitored contaminants, including perchlorate. This means the local system complies with all enforceable health-based water quality requirements. Aesthetic secondary standards typically relate to taste, staining, or corrosion factors and do not apply to perchlorate since it is tasteless and colorless. Recognizing this distinction is essential to correctly interpret water test results and local water department records.
Changes at the Tap When Using the Pentair Perchlorate Filter
When configured, the Pentair Perchlorate Filter targets perchlorate molecules, reducing their concentration in household water to support peace of mind. Treated water maintains normal taste and clarity while lowering perchlorate presence. The filter system is designed for direct purchase and ships ready to configure for your specific water demand without requiring additional help. This approach allows households to address potential perchlorate concerns at the point of use.
Considerations for Large Households, Second Homes, or Seasonal Properties
Larger homes or those with higher water usage should select filtration capacity accordingly because higher water demand increases the need for effective perchlorate reduction. Seasonal properties may require filter maintenance aligned with periods of occupancy to maintain performance, especially after extended inactivity. The Pentair system adapts to various household sizes and usage patterns without modification to water piping or plumbing.
To address perchlorate concerns based on your household’s measured water demand, the Pentair Perchlorate Filter offers a documented method to reduce perchlorate presence at the tap tailored to Westerly’s local water system profile.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2003-07-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR1 monitoring (2001-2005) for WESTERLY WATER DEPARTMENT (RI1559512), RI: 20 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level
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