How does the pH of Ottawa County’s aquifer 367RBDX vary over time?
The U.S. Geological Survey conducted groundwater sampling in Ottawa County’s aquifer 367RBDX between June 2016 and March 2019. The recorded pH values from four samples collected in three separate wells ranged from 7.6 to 8.1 standard units, with a median pH of 7.9. This means the water tended to be slightly alkaline rather than acidic during the sampling period. No sample showed pH values below 6.5, which is the EPA’s secondary standard lower bound for pH in drinking water, related to taste and corrosivity but not health risks.
What does the number of samples and wells tell us about water pH in this area?
These pH results come from only three wells spaced over the aquifer and at depths between 1150 and 1320 feet. Four samples were collected over almost three years. While this indicates stable conditions for the pH in this part of the aquifer, the small number of wells and samples means it is not comprehensive of all locations or time periods. Seasonal variation or localized changes in pH could occur outside this dataset. Homeowners should consider testing their own water to understand their specific conditions.
What can happen if acidic water issues are ignored over many years?
Water that is acidified below the EPA secondary pH range of 6.5 to 8.5 can contribute to increased corrosivity in household plumbing. This can lead to the gradual release of metals from pipes and fixtures, potential staining, and damage to appliances reliant on water. While the aquifer data does not indicate acidic conditions, untreated low-pH water elsewhere may cause these effects over time, influencing water taste, clarity, and plumbing integrity.
What information should homeowners note before seeking treatment options?
Before exploring treatment systems, it is essential to have a current water test from your own well or supply location that includes pH measurement. Knowing the precise pH allows assessment of whether acidic water treatment is needed. Record the test date, testing method, and any other water quality parameters reported. This documentation enables informed decisions about which water treatment technology fits your water quality needs.
How can an Ottawa County homeowner interpret the recorded median and range?
The median pH of 7.9 with a range between 7.6 and 8.1 units suggests that the aquifer water is generally neutral to slightly alkaline. These values are comfortably within the EPA’s recommended secondary standard, indicating that acidic water is not typical in the sampled part of aquifer 367RBDX. For a homeowner, this means that acidic water is unlikely to be a widespread concern based on area data alone, but local variations can exist.
What should not be concluded from this area pH data?
It is important not to assume your household water precisely matches these aquifer-wide figures. The samples represent only a small subset of wells and dates, and water chemistry can differ due to factors such as depth, well construction, and local geology. While no acidic pH values were detected in this dataset, that does not guarantee your water cannot have low pH. Testing your own water source is the only way to determine your specific water condition. If acidic or low-pH water is confirmed, a C-Series Acidic / Low-pH Water Filter ships ready to configure and is designed specifically to address water with lower pH values by adjusting pH to reduce corrosion and improve water quality.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-03-18. 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 367RBDX aquifer (Ottawa County): 4 results from 3 wells, median 7.9 standard units, range 7.6-8.1 standard units; EPA secondary standard for pH is 6.5-8.5 (aesthetic/corrosivity, not health-based); 0 of 4 sampled results fell below 6.5