1. How Seasonal and Multi-Year Variation Shows in the Sulfur Records
The data for sulfide levels in James City County's aquifer 217PTMC comes from 11 samples taken between July 22, 2010, and May 24, 2018. These samples, collected from two separate wells at depths between 565 and 929 feet, indicate that sulfide was consistently detected throughout the period. The recorded concentrations ranged from 0.0 to 0.24 mg/L, with a median value of 0.134 mg/L. These figures suggest that sulfide presence in this groundwater system shows some fluctuation over time but remains within a defined range noted over nearly eight years.
2. How Public-System Records Differ from Private-Well Testing
The government samples represent regional groundwater conditions in James City County’s aquifer but do not specify the quality of any individual private well. While these samples establish a general profile for sulfide presence in the aquifer, private homeowners should conduct certified laboratory testing on their own water to determine exact sulfide concentrations. Without testing your well specifically, it is impossible to know your water’s sulfide level based solely on this regional data.
3. What the Measured Range Means Against Federal Standards—and What It Does Not Mean
All sulfide results in this set are below federal thresholds set for health-related water quality standards. It is important to emphasize that detection of sulfide—even at recorded amounts up to 0.24 mg/L—does not constitute a violation or unsafe condition by federal criteria. Instead, these values primarily relate to aesthetic concerns such as odor. The sulfide concentration numbers cannot confirm safety or danger for your household water without your own sample analysis.
4. Household Symptoms That May and May Not Indicate Sulfur Smell Issues
The primary sign of sulfide in your water is a noticeable rotten-egg odor. This smell often affects water quality perceptions and may influence usage for drinking, cooking, and bathing. However, symptoms like discoloration or staining are not caused by sulfide but rather by other minerals. If the odor is intermittent or absent, sulfide may not be the culprit, and other causes should be explored. Confirming sulfide as the source requires testing your water specifically.
5. Maintenance Rhythm of the C-Series Rotten-Egg Sulfur Smell Filter
When household tests confirm sulfide presence causing odor, the documented remedy is the C-Series Rotten-Egg Sulfur Smell Filter. This system ships ready to configure with household plumbing setups. It works by filtering and neutralizing sulfide to reduce the rotten-egg smell effectively. Maintenance typically involves periodic replacement of filter components, the timing of which depends on usage and water quality. Routine checks and timely filter renewal help maintain consistent odor control without complicated upkeep requirements.
These regional sampling results reflect sulfide concentrations found in the James City County aquifer 217PTMC from public wells sampled between 2010 and 2018. For full details, refer to the U.S. Geological Survey groundwater monitoring site at https://waterdata.usgs.gov/monitoring-location/372506076511701/.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2018-05-24. These figures describe groundwater sampled in this area. They are not a test of any individual private well - only a test of that well can establish its own water.
On record: U.S. Geological Survey sampling of Sulfide in the 217PTMC aquifer (James City County): 11 results from 2 wells, median 0.134 mg/L, range 0.0-0.24 mg/L; none above any federal threshold