Overview of Duval County Groundwater pH from Government Sampling
The U.S. Geological Survey collected 128 pH measurements from 13 different wells in Duval County aquifer 120FLRD between April 2010 and August 2014. These wells, ranging in depth from 510 to 1304 feet, showed a pH range of 7.1 to 8.2 with a median of 7.75 standard units. None of the samples had a pH below the EPA secondary standard minimum of 6.5, a guideline focused on aesthetics and pipe corrosivity rather than health effects.
1. Comparing Duval County's pH Range With Neighboring Regions Without Overreading the Data
Neighboring counties may report slightly different pH ranges in their groundwater; however, these regional differences do not directly indicate your household water’s corrosivity. Variability can result from local geology, aquifer depth, or sampling methods. The Duval County data reflects a stable pH range within secondary standards, suggesting corrosive conditions due to low pH are unlikely in the source water, but this does not rule out other corrosive factors that could affect your home’s plumbing.
2. How Plumbing Material and Age Influence Corrosion Independently of Source Water pH
Even with source water pH in a moderate range, corrosive damage in household pipes often depends more on the materials used and their age. Older metal pipes or fittings susceptible to corrosion can degrade if exposed to water with any slight acidity, mineral content, or fluctuating chemistry. Plastic or coated pipes may resist corrosion better. Evaluating your plumbing components is essential because corrosivity involves both water chemistry and pipe characteristics.
3. Seasonal and Multi-Year Variation Evident in the Sampling Record
The pH data collected over more than four years shows the range and median values did not fall below the secondary standard threshold. This temporal stability indicates no seasonal or multi-year trends toward increased acidity or corrosiveness in the aquifer. It is important to note that water chemistry can vary locally and over shorter timescales, so your household water may exhibit differences not captured in this broad dataset.
4. Applying the Median and Range Data: Interpreting What It Means for Your Household
The median pH value of 7.75 in Duval County water suggests a generally neutral to slightly alkaline environment, which tends not to promote corrosivity. The lowest measured pH of 7.1 is still within the acceptable aesthetic range, indicating source water alone is unlikely to cause corrosive damage. Homeowners should remember this is an area-wide measure; individual wells or supply lines require testing to precisely determine corrosive potential.
5. Consequences of Untreated Corrosive Water on Household Plumbing Over Time
If corrosive water conditions exist and go unaddressed, pipes and fixtures can suffer from gradual thinning, leaks, reduced lifespan, and metal leaching. These issues may result in increased maintenance or replacement costs and water quality changes such as metallic taste or discoloration. Being proactive by assessing water chemistry and pipe condition can help prevent such long-term damage.
Summary: This walkthrough used regional pH data for Duval County to frame corrosive water considerations without overstating the area data’s implications for individual wells. Evaluating plumbing materials and understanding water chemistry stability assist in decision making. For households facing potential pipe damage due to corrosive water, the C-Series Corrosive Water Damaging Pipes Filter ships ready to configure as a treatment option that addresses this issue effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2014-08-07. 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 120FLRD aquifer (Duval County): 128 results from 13 wells, median 7.75 standard units, range 7.1-8.2 standard units; EPA secondary standard for pH is 6.5-8.5 (aesthetic/corrosivity, not health-based); 0 of 128 sampled results fell below 6.5