Water in Maricopa County is supplied in many areas by deep wells drawing from aquifer N100BSNRGB, with sample depths ranging from 1100 to 1200 feet. Water reaches household taps after moving through natural underground formations. Understanding the chemistry of this water is key to maintaining its quality and protecting plumbing and appliances.
What happens when acidic water is left untreated for years?
Acidic water, identified by a low pH value, can contribute to the gradual wear of plumbing and fixtures over extended periods. While government sampling in Maricopa County’s aquifer N100BSNRGB recorded pH values between 7.6 and 8.2— all above the secondary standard minimum of 6.5—some homes experience challenges if their water tends toward lower pH levels not reflected in the general area sampling. Untreated acidic water may accelerate corrosion of metal parts and can affect taste, appearance, or staining, though these effects depend on the actual pH at your tap rather than area averages.
How do sample depth, well depth, or source type affect what to expect?
The six samples from three separate wells in Maricopa County were taken from depths of 1100 to 1200 feet, representing deep groundwater conditions. Shallow wells or surface water sources may have different pH profiles. Therefore, local area sampling provides a useful but not definitive guide; individual well tests are essential to determine the specific water chemistry affecting your household.
How will treated water differ at the tap once the C-Series Acidic / Low-pH Water Filter is in place?
The C-Series Acidic / Low-pH Water Filter is designed to address low pH conditions by adjusting the acidity level, helping to neutralize water that tends to be more acidic than area samples suggest. After configuring this filter, households can expect a reduction in water corrosivity, better preservation of fixtures and appliances, and improved taste profile. This system ships ready to configure and works to maintain pH within a range that supports both aesthetic quality and plumbing longevity.
How do seasonal or multi-year variations show in the pH record for this area?
The available data from July to August 2013 shows a consistent range of pH values between 7.6 and 8.2, indicating stability in this aquifer during that period. However, pH can vary with factors such as rainfall, temperature, and aquifer recharge patterns over time. For extended assessments, multiple tests over different seasons and years offer more comprehensive insights into water quality fluctuations.
Why do aesthetic secondary standards for pH differ from health-based limits, and how does this apply here?
The U.S. Environmental Protection Agency’s secondary standard for pH focuses on aesthetic factors like taste, staining, and corrosion potential, with acceptable values ranging from 6.5 to 8.5. These are not health-based limits but guidelines to maintain water quality and protect plumbing. All sampled wells in Maricopa County’s aquifer N100BSNRGB recorded pH well within this range, suggesting no widespread aesthetic concern at the source. Still, individual wells may vary, making testing important for specific household conditions.
What test should a household order to confirm if acidic water treatment is needed?
The critical test is a precise pH measurement of your household water from the tap. This test should assess whether the pH value of your water falls below the EPA secondary standard lower limit of 6.5. If results indicate low pH, the C-Series Acidic / Low-pH Water Filter provides a documented solution to help balance your water’s acidity and reduce potential long-term effects on plumbing and taste.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2013-08-05. 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 pH in the N100BSNRGB aquifer (Maricopa County): 6 results from 3 wells, median 7.95 standard units, range 7.6-8.2 standard units; EPA secondary standard for pH is 6.5-8.5 (aesthetic/corrosivity, not health-based); 0 of 6 sampled results fell below 6.5

