Perchlorate in VI Households: Understanding Local Water Data and Its Limits
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Understanding Perchlorate Data for Your Home Water
Public Water System Results Represent Broad Area Sampling, Not Individual Homes
The EPA's data for THE REEF CONDO public water system in VI shows no perchlorate detected above 4.0 micrograms per liter across four tests conducted in 2002. These results reflect the system’s overall water quality, collected to monitor trends rather than to measure any single household’s water. Your home's perchlorate level can only be known by having your well or tap water specifically tested.
The Median and Range Are Reported as No Detects in This Record
All tested samples for perchlorate showed measurements below the reporting level, meaning no perchlorate was detected above 4.0 µg/L in those samples. This absence of detection is encouraging but does not guarantee perchlorate is absent in every tap or well served by the system.
Household Fixtures and Processes Most Sensitive to Perchlorate Presence
Perchlorate Effects Are Typically Related to Drinking and Cooking Water Uses
While perchlorate itself does not affect appliances or plumbing materials, it is a concern mainly where water is ingested. Processes like drinking, cooking, and making baby formula use water that should be scrutinized for perchlorate if testing indicates its presence.
Filtration Devices Addressing Perchlorate Target These Uses
Water filtration units designed to reduce perchlorate focus on point-of-use applications such as kitchen faucets. They treat water at the tap to minimize potential exposure where ingestion occurs.
Additional Questions for Commercial or Industrial Water Users
Businesses May Need Higher Volume or Continuous Treatment Capacity
Commercial operations often require understanding perchlorate impacts on larger water volumes and over longer usage periods. Their water demands and regulatory requirements could prompt more frequent or rigorous testing.
Process Water Concerns Can Differ from Household Drinking Water Considerations
Industrial processes may be affected if perchlorate interferes with chemical reactions or product safety. Such concerns do not apply to typical residential water use.
Adjustments for Large or Seasonal Households
Greater Water Use May Influence Treatment Choice and Frequency
Larger households or properties used only part of the year might consider system sizing or filter replacement intervals differently compared to smaller, permanent residences.
Water Quality Consistency Can Vary in Seasonal Systems
Seasonal homes may face different water quality patterns due to system inactivity or changes in source water chemistry during absence periods.
Why Secondary Aesthetic Standards Differ From Health-Based Limits for Perchlorate
Perchlorate Has No EPA Secondary Maximum Contaminant Level
Unlike substances that cause taste, odor, or staining issues, perchlorate does not have an EPA secondary standard. Aesthetic effects do not guide perchlorate management as they do for other water quality factors.
Health-Based Standards Are the Reference for Perchlorate Monitoring
EPA does not currently have a federally enforceable maximum contaminant level for perchlorate but does monitor as part of unregulated contaminant monitoring. Health-based risk evaluations drive treatment decisions.
Summary of Water System Perchlorate Data and Next Steps
The EPA records for THE REEF CONDO system show perchlorate was not detected above the reporting level in multiple samples taken from 2002. This information reflects the overall water system and cannot confirm the condition of individual homes’ water. For certainty about perchlorate in your household water, specific testing is necessary.
When perchlorate presence is confirmed or suspected, water treatment options such as the C-Series Perchlorate Filter, shipping ready to configure for point-of-use treatment, can reduce perchlorate exposure where it matters most.
For detailed data and methodology, consult the EPA’s UCMR public water system record for THE REEF CONDO.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2002-10-01. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR1 monitoring (2001-2005) for THE REEF CONDO (VI0000074), VI: 4 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level