Government sampling performed by the U.S. Geological Survey shows copper was detected consistently in Delaware County’s aquifer 112PLSC, with a median concentration of 1.11 micrograms per liter and values ranging from 0.84 to 2.9 micrograms per liter in four samples taken from two wells between 2014 and 2025. All wells sampled were between 25 and 28 feet deep. None of these recorded levels exceed federal safety thresholds.
Sample Size and Scope: What Four Samples from Two Wells Tell Us
The copper data for this area is based on four results from two wells, a relatively small dataset. This limited sample size means the measurements provide an indication of copper presence at these specific points rather than a comprehensive characterization of all groundwater in Delaware County. Variability in local geology, depth, and well construction can lead to variations in copper levels elsewhere.
Maintenance Rhythm of the C-Series Blue-Green Copper Stains Filter
The C-Series Blue-Green Copper Stains Filter is designed to address staining caused by copper in water supplies. Its operation involves routine upkeep focused on replacing filtration media or components based on usage and water quality changes. Typically, the system’s maintenance is periodic and planned, allowing it to continually reduce copper levels that contribute to staining issues without requiring complex servicing.
Separating Copper Stains from Similar Staining Problems
Copper stains usually have a distinctive blue-green color commonly seen on sinks, bathtubs, or plumbing fixtures. They differ noticeably from iron stains, which are reddish or rusty in hue, and from mold or mildew stains, which are dark and often fuzzy. Properly identifying copper stains helps focus testing and treatment efforts on the right source.
Comparing Delaware County’s Copper Data with Neighboring Counties
Adjacent counties may show different copper concentration ranges due to geological and hydrological differences. When comparing these records, it’s important to avoid assuming uniformity across boundaries. Each county’s aquifer system and well characteristics affect copper presence, so a direct comparison should consider these contextual factors without overgeneralizing.
Understanding 'Detected,' 'Median,' and 'Range' in Monitoring Records
- Detected: Copper was measurable in all samples, confirming its presence but not implying any violation or unsafe condition.
- Median: The middle value of 1.11 micrograms per liter indicates the central tendency in these samples.
- Range: Values from 0.84 to 2.9 micrograms per liter represent the spread between lowest and highest measurements, indicating some variation over time and well location.
These terms describe the dataset without making assumptions about any single water source. Homeowners should have their individual water tested to know their specific copper levels.
For households working to address copper staining in water, the C-Series Blue-Green Copper Stains Filter ships ready to configure and provides reliable reduction of copper concentrations that cause this problem. Testing your water’s copper concentration can help determine if this system meets your needs.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2025-08-13. 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 Copper in the 112PLSC aquifer (Delaware County): 4 results from 2 wells, median 1.11 ug/L, range 0.84-2.9 ug/L; none above any federal threshold