Government groundwater sampling in Maricopa County's aquifer shows total dissolved solids (TDS) have been detected in all tested wells, with 51 samples from 9 separate wells ranging widely from 0.33 to 12,300 mg/L. The median concentration in these samples is 1,650 mg/L. This data reflects water quality in the aquifer broadly but does not specify the condition of any individual well.
How Public-System Records Differ From Private-Well Testing in What They Establish
Records from government sampling provide a regional overview rather than individual well quality. Public system data summarize what has been found across many wells, often of varying depths and ages. A private well’s actual water quality can differ substantially, so direct testing of your household's water is necessary to understand your specific situation before choosing treatment methods.
Why Aesthetic Secondary Standards Differ From Health-Based Limits, Applied to This Constituent
For total dissolved solids, the U.S. Environmental Protection Agency defines a secondary standard of 500 mg/L based on aesthetic factors such as taste, staining, or potential corrosiveness. Thirty of the samples exceeded this secondary standard. However, these limits are not health-based and do not indicate unsafe conditions. High TDS levels may affect water appearance and taste rather than health risk.
The Order in Which to Rule Things Out, From Cheapest Check to Laboratory Test
Begin with simple sensory checks for cloudiness, unusual taste, or staining in your water. These may indicate elevated TDS levels. Following this, a certified laboratory analysis can quantify specific dissolved solids. This step is essential since government data cannot reveal your well's exact quality and provide the basis for well-targeted treatment decisions.
What 'Detected', 'Median' and 'Range' Mean in the Sampling Record on This Page
'Detected' means the testing instruments found measurable TDS in every sample from the region's wells; it does not imply a violation or unsafe condition. The 'median' value of 1,650 mg/L represents the middle concentration among all samples, while the 'range' shows the lowest to highest extremes. These figures indicate variability in aquifer water quality due to location and well depth differences.
How to Judge Treatment Capacity Against the Household's or Facility's Daily Demand
Choosing the appropriate water treatment system depends on expected water usage and the extent of dissolved solids reduction required. The Fleck Complete Well System offers a 32,000-grain capacity designed to handle typical residential demand levels comprehensively. Estimating your daily water consumption helps ensure the system capacity matches your household needs without under- or over-sizing.
How Sample Depth, Well Depth or Source Type Changes What a Reader Should Expect
Samples came from wells between 30 and 1,200 feet deep. Generally, deeper wells may access different water strata, potentially altering mineral content and TDS concentrations. Understanding your well’s depth and source characteristics will help anticipate water quality and tailor treatment accordingly.
In summary, regional data show a broad range of total dissolved solids in Maricopa County aquifer wells, often above an aesthetic threshold but not indicating health risks. To resolve how this affects your household, you should conduct a comprehensive analysis of your own well water. Testing will confirm TDS levels and inform whether a system like the Fleck Complete Well System with its proven 32,000-grain treatment capacity suits your needs for complete well water treatment.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2024-12-17. 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 aquifer (Maricopa County): 51 results from 9 wells, median 1650.0 mg/L, range 0.33-12300.0 mg/L; 30 above an AESTHETIC secondary standard only (secondary standard 500.0 mg/L (aesthetic)) - not a health finding