Government groundwater sampling from 29 wells in Harris County’s 121EVGL aquifer recorded total dissolved solids (TDS) concentrations with a median of 278.5 mg/L from 2010 to 2015, ranging between 0.31 and 560.0 mg/L; these figures represent area-wide measurements, not individual well results.
How does the documented treatment technology remove or neutralize total dissolved solids?
The Fleck Complete Well System uses a specialized process to reduce total dissolved solids from well water by employing ion exchange and filtration methods. This technology exchanges dissolved minerals that contribute to TDS with less problematic ions, effectively lowering the concentration of dissolved solids that affect water aesthetics and household use. The system has a grain capacity of 32,000, enabling it to treat substantial volumes before regeneration is required, ensuring consistent performance for residential use.
How does the treated water differ at the tap once the documented technology is in place?
After treatment with this system, water from the tap typically has fewer minerals responsible for taste alterations and staining. While total dissolved solids contribute to these aesthetic factors, their reduction leads to improved water clarity, less residue on plumbing fixtures, and better-tasting water. These improvements enhance daily water use without altering constituents regulated for health.
What distinguishes this problem from the two problems most often confused with it?
Total dissolved solids can be mistaken for water hardness or microbial contamination, but they are distinct issues. Hardness involves calcium and magnesium ions specifically and is measured differently, while microbial contamination relates to pathogens, which are unrelated to dissolved solid content. TDS primarily impacts water’s taste, odor, staining, and corrosivity, not safety or biological quality.
How to compare this area's record with a neighboring county's without overreading it?
Comparing TDS levels between counties should consider the natural geologic variation and sampling differences. For example, a neighboring county might show a different TDS median due to soil composition or depth of wells sampled. Such data reflect regional trends, not individual conditions, so caution is needed not to assume identical water quality for any single well based only on adjacent area data.
What does the measured range mean against the relevant federal standard, and what does it not mean?
The federal secondary standard for total dissolved solids is 500 mg/L, which serves as a guideline for aesthetic concerns like taste and staining, not for health. In Harris County’s 121EVGL aquifer, four samples exceeded this threshold, but this is not a violation or a safety issue. The majority of samples were below this level, indicating typical groundwater with manageable dissolved solid content.
What is the order to rule things out, from cheapest check to laboratory test?
- Begin by visually inspecting for staining or taste issues linked to TDS.
- Check for hardness if mineral scaling or soap performance concerns exist, as hardness is distinct.
- Use affordable home test kits for basic TDS and hardness to get initial figures.
- If uncertainty remains, commission a certified water laboratory test for detailed analysis of total dissolved solids and other constituents.
In summary, the Harris County record for aquifer 121EVGL consists of 174 sampling results from 29 wells between 2010 and 2015, showing a wide but generally moderate range of total dissolved solids. This information is publicly available at the U.S. Geological Survey online water-data portal and assists households in assessing groundwater quality contextually while selecting appropriate treatment technology like the Fleck Complete Well System.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2015-07-20. 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 Total dissolved solids in the 121EVGL aquifer (Harris County): 174 results from 29 wells, median 278.5 mg/L, range 0.31-560.0 mg/L; 4 above an AESTHETIC secondary standard only (secondary standard 500.0 mg/L (aesthetic)) - not a health finding
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