The EPA’s monitoring of the Savannah-Main public water system in Chatham County, Georgia, shows no perchlorate detected above the reporting level of 4.0 micrograms per liter (µg/L) in 16 samples collected during 2001–2002. This system serves over 168,000 people using groundwater sources.
Which Household Fixtures and Processes Are Notably Affected First
Perchlorate, when present in water, may primarily impact water used for drinking, cooking, and food preparation. Fixtures like kitchen taps and appliances that consume potable water would be the first to interact with perchlorate. Processes such as ice making and beverage dispensing that rely on treated water also relate closely to perchlorate considerations.
How Sample Depth and Source Type Influence Expected Perchlorate Levels
Because Savannah’s system draws from groundwater, perchlorate levels reflect how substances penetrate underground water bodies. Deeper wells typically show different constituent profiles compared to shallow ones due to geologic and environmental factors. Groundwater is generally less influenced by surface contamination but can accumulate certain contaminants if present in the recharge area.
Understanding 'Detected', 'Median', and 'Range' in the Sample Data
In this record, no perchlorate was detected above the 4.0 µg/L reporting threshold. 'Detected' means the contaminant was measured above the instrument’s sensitivity level, while 'median' reflects the middle value in a data set, and 'range' shows the spread between lowest and highest observed values. Since all results were below reporting levels, the data indicate perchlorate was not measurable by EPA methods at those times.
Number of Samples, Wells, and the Implications of a Limited Sample Size
Sixteen samples were collected over approximately seven months from the public system. While this provides a snapshot, it represents a relatively small dataset for ongoing fluctuations or localized spikes. A small sample size means occasional events or individual well variances might not be fully captured in the public record.
Differences Between Public System Records and Private Well Testing
The EPA findings reflect a system-wide overview from multiple sources combined to serve the community. Private wells may have different perchlorate concentrations due to specific local geology, land use, or contamination sources. Homeowners interested in their own water should consider laboratory testing to determine precise perchlorate levels specific to their property.
It’s important not to conclude from these area data that any individual home’s water contains no perchlorate or that perchlorate absence in this record guarantees no future presence. The Savannah-Main public water system’s record shows no measurable perchlorate during the monitoring period, with no EPA health-based violations reported. For targeted perchlorate treatment at the household level, equipment like the C-Series Perchlorate Filter ships ready to configure for use, providing an option for water treatment tailored to perchlorate concerns when confirmed by home testing.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2002-05-15. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA UCMR1 monitoring (2001-2005) for SAVANNAH-MAIN (GA0510003), GA: 16 results across 1 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level