Opening: The Local Aquifer and Water Delivery
Queens County draws groundwater from the aquifer identified as 112GLCLU, which feeds many wells in the area. Water travels up from depths ranging roughly between 23 and 265 feet underground before reaching household taps. This natural filtration through earth layers affects water composition, but it is just one part of the story in what you find in your home’s water.
1. Understanding Plumbing Material and Age
The metal content in your water can be influenced by the pipes and fixtures inside your home independently of what the aquifer water contains. Older plumbing can sometimes introduce metals into the water even if the source is free from concerning levels. Knowing the type and age of your household plumbing helps separate what originates from water source versus what might come from household pipes.
2. Effects of Household Size or Usage Pattern
Water quality may vary in larger households, second homes, or seasonal properties due to differences in water demand and stagnation times in plumbing. Longer periods without water flow, as in seasonal homes, can increase the chance of metals dissolving out of pipes. Understanding how and when water is used helps evaluate your potential exposure to heavy metals.
3. Potential Outcomes of Untreated Heavy Metals Over Time
Leaving elevated metals untreated can result in gradual build-up of deposits that cause staining or corrosion issues in plumbing and fixtures. While detected metal levels in the area have not exceeded federal thresholds, ongoing presence may affect aesthetics or require maintenance attention. Long-term effects depend on actual concentrations and exposure durations, which personal testing can clarify.
4. Interpreting 'Detected,' 'Median,' and 'Range' in Area Sampling
Government sampling of 47 wells in Queens County aquifer 112GLCLU found selenium in 96 of 105 samples. The median concentration was 1.025 micrograms per liter, with a range from 0.053 to 22.9 micrograms per liter. 'Detected' means the instrument measured selenium present; it does not indicate a violation. Median reflects the middle value among samples, and range shows the lowest and highest detected levels in the area samples collected from 2010 to 2013.
5. Differences Between Public System Records and Private Well Testing
Area public groundwater sampling provides a helpful overview but does not reveal the exact conditions of any individual well. Public water systems undergo different regulatory monitoring than private wells, which require specific testing to know personal water quality. To understand your home's heavy metals levels precisely, you would need to conduct private well testing or tap water analysis.
6. Information to Gather Before Seeking Treatment Advice
Before choosing any treatment, note the following: your water source (private well or public supply), plumbing material and age, household size or usage pattern, and recent water test results including heavy metals. This information is essential to identify if treatment is warranted and to select an appropriate solution tailored to your household’s water quality challenges.
Closing: What Not to Assume from Regional Data
Detecting selenium or other metals in regional aquifer samples does not mean your household water contains the same levels or that it is unsafe. The absence of federal threshold exceedances in the Queens County sampling affirms regulatory compliance in the area. Individual water quality varies, so rely on specific testing rather than regional data alone. When treatment is considered, the Pentair Heavy Metals Filter ships ready to configure as a documented option to reduce metals commonly found in household water.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2013-07-29. 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 Selenium in the 112GLCLU aquifer (Queens County): 105 results from 47 wells, median 1.025 ug/L, range 0.053-22.9 ug/L; none above any federal threshold
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