Government groundwater sampling in Harris County, Texas, for aquifer 112CHCT shows arsenic was detected in every one of 67 samples taken from 54 wells between 2010 and 2024. The median arsenic level found was 2.1 micrograms per liter (µg/L), with readings ranging from 0.53 to 8.7 µg/L. All sampled wells were between 305 and 1,556 feet deep. No measurements in this data set exceeded federal arsenic limits for drinking water.
How Water Changes at the Tap After Using a C-Series Arsenic Filter
The C-Series Arsenic Filter is designed to reduce arsenic concentrations in household water below health-based guidelines established by federal agencies. After water passes through this system, arsenic levels at the tap should be significantly lowered compared to untreated well water. This change helps address long-term exposure concerns by providing clearer, safer drinking water that meets recommended arsenic thresholds. The filter ships ready to configure for straightforward integration with home water setups.
Why Aesthetic Secondary Standards Differ from Health-Based Limits for Arsenic
Aesthetic secondary standards focus on water qualities like taste, color, and odor, which arsenic does not typically affect at the levels detected in Harris County. By contrast, health-based limits are established to reduce risks associated with prolonged arsenic ingestion. Since no sample in the area aquifer testing exceeded the federal health-based standard of 10 µg/L, the detected arsenic represents a measured presence, not an aesthetic or safety violation.
Ordering Your Water Quality Assessment: From Basic Checks to Laboratory Testing
To determine the specific arsenic concentration in your residential water, start with a certified laboratory water test for arsenic. This is essential because government area data provides only a general picture, not individual household conditions. Before testing, review any local water quality reports from municipal or water district sources if applicable. This layered approach prioritizes understanding your water without assumptions from regional data alone.
How Well Depth and Source Type Affect Expected Arsenic Levels in Harris County
The depth of sampled wells (305–1,556 feet) in Harris County’s aquifer 112CHCT suggests arsenic concentrations may vary with well depth and local geology. Deeper wells often draw from aquifer zones with different mineral compositions affecting arsenic presence. Surface water sources or shallower wells may show different arsenic patterns, so knowing your well depth helps anticipate water quality before testing or treatment decisions.
Assessing Treatment Capacity Relative to Household Water Use
When selecting an arsenic filter system like the C-Series, consider your household’s daily water demand. Typical residential use varies with family size and fixtures, so sizing the filter system appropriately ensures effective arsenic reduction without compromising flow rates. Maintaining filter performance means matching capacity to consumption to avoid frequent cartridge changes or diminished water pressure.
The arsenic data summarized here comes from 67 groundwater samples taken from 54 separate wells between 2010 and 2024 in Harris County’s aquifer 112CHCT. Visit the U.S. Geological Survey site for full sampling details and updates: https://waterdata.usgs.gov/monitoring-location/295705095320201/
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-08-05. 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 112CHCT aquifer (Harris County): 67 results from 54 wells, median 2.1 ug/L, range 0.53-8.7 ug/L; none above any federal threshold