Water from aquifer 111VLFL in Grand County reaches homes through private or shared wells tapping groundwater 16 to 28 feet deep. The U.S. Geological Survey collected samples from five wells in this aquifer between 2010 and 2022. Understanding this data helps clarify arsenic’s presence in the area’s water and informs treatment choices for your household.
What happens when arsenic in household water is not addressed over years?
Arsenic naturally occurs in groundwater in various concentrations depending on local geology. Although no sampled well in Grand County’s aquifer 111VLFL exceeded federal arsenic thresholds, arsenic can accumulate in the body over time if consumed at elevated levels. Long-term exposure to arsenic above health-based limits may increase health risks. Households relying on untreated water should consider testing and treatment to manage any arsenic present.
How does arsenic concentration in Grand County’s aquifer 111VLFL change over time?
The seven samples taken from 2010 through mid-2022 showed arsenic detected in six instances, with levels ranging from 0.15 to 5.0 micrograms per liter (µg/L) and a median of 1.355 µg/L. One sample was below the reporting limit. This range and detection pattern reflect natural variability over multiple years and wells but remain below federal thresholds. Seasonal or annual shifts can occur due to changes in groundwater flow or chemical conditions, so regular testing of your specific well water is recommended.
How does the Fleck Arsenic Filter remove or neutralize arsenic from household water?
The Fleck Arsenic Filter uses a specialized filtration system designed to target and reduce arsenic concentrations effectively. It employs a treatment process certified to remove arsenic from water before it reaches taps, offering households control over arsenic levels regardless of natural fluctuations. This system ships ready to configure for connection with your existing water supply setup.
Why do aesthetic secondary standards differ from health-based arsenic limits in Grand County water?
Secondary standards address water qualities like taste, color, or odor that affect user experience but are not health limits. For arsenic, federal health-based standards set maximum contaminant levels protecting human health, which govern treatment decisions. The Grand County samples did not exceed these health-based thresholds. Understanding the difference is key: detecting arsenic does not imply aesthetic issues or health violations by itself.
What household signs may or may not indicate arsenic presence in water?
Arsenic in water is colorless, tasteless, and odorless, so there are typically no direct sensory signs in the home to indicate its presence. Stains, taste changes, or odors more often relate to other water constituents. The absence of noticeable symptoms does not rule out arsenic. Testing is the only reliable way to confirm arsenic levels in household water.
What does a certified laboratory test report for arsenic, and how should I interpret it?
A certified lab test reports arsenic concentration in micrograms per liter (µg/L or ppb). To understand your water’s status, compare the test result to the federal maximum contaminant level for arsenic, which is 10 µg/L. The Grand County aquifer 111VLFL sampling results were all below this limit. Regular testing ensures you know your water’s condition accurately, since local area data does not guarantee your individual well’s composition.
These findings summarize arsenic measurements from multiple wells in Grand County’s aquifer 111VLFL, sampled over more than a decade. For details, see the U.S. Geological Survey's water-quality database for site 395623105481000.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2022-07-19. 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 Arsenic in the 111VLFL aquifer (Grand County): 7 results from 5 wells, median 1.355 ug/L, range 0.15-5.0 ug/L; none above any federal threshold
- ✓ 90-Day Money-BackNo restocking fees — return within 90 days.
- ✓ Manufacturer WarrantyGenuine Fleck · Pentair · VIQUA equipment.
- ✓ Free Expert SizingTalk to a specialist and buy the right system the first time.