Origin of Corrosive Conditions in New Hanover County's Groundwater

Natural groundwater pH ranges from acidic to neutral here

The U.S. Geological Survey sampled 46 wells in New Hanover County tapping aquifer 211PEED. Results from 66 samples showed pH values from 4.3 to 7.8, with a median of 7.1. This range reflects natural variability in the aquifer and does not indicate any single water source condition.

Water moves through underground layers before reaching household taps

Water drawn from 42 to 220 feet deep moves through geologic formations that affect pH by dissolving minerals or organic matter, influencing corrosivity potential before distribution.

Plumbing Materials and Age Affect Corrosivity Independently

Older pipes can worsen corrosive effects despite source water pH

Corrosion often depends more on pipe materials and their condition than on water pH alone. Metals like unlined iron, copper, or galvanized steel may corrode faster if exposed to acidic water.

Household plumbing conditions need consideration separately from groundwater

Factors like water stagnation, temperature, mineral deposits, and protective coatings alter how water interacts with household plumbing and fixtures.

Sampling Depth and Water Source Affect Expected Corrosivity

Deep wells often show different pH ranges than shallow ones

Samples spanned depths from 42 to 220 feet. Generally, well depth influences pH because deeper water contacts different minerals and has different redox conditions.

Surface water or municipal supplies may have distinct water treatment affecting corrosivity

Municipal water is monitored and adjusted to meet federal standards, often maintaining pH between 6.5 and 8.5 to minimize corrosion risks.

Information to Collect Before Seeking Corrosive Water Treatment

Record household water usage and plumbing age

Estimate daily water consumption and note the age and material of pipes, fixtures, and water heaters to evaluate corrosion potential comprehensively.

Obtain specific water quality tests from a certified laboratory

Testing your own water's pH and other relevant parameters, such as alkalinity and dissolved solids, is necessary to determine corrosivity and proper treatment needs.

Interpreting pH Results Against Federal Secondary Standards

EPA secondary standard for pH is 6.5 to 8.5 for aesthetic and corrosivity reasons

Three sampled wells out of 66 fell below 6.5, indicating acidic conditions that might increase pipe corrosion. This is not a health-based violation but a parameter affecting water taste, staining, and pipe longevity.

Detected pH outside the range does not imply unsafe water or mandatory treatment

Variations in pH across wells reflect natural conditions. If water is within or near the secondary standard, corrosion may be minimal or manageable by plumbing maintenance.

Recommended Order for Corrosive Water Assessment

Start with visual inspection and monitoring for staining or leaks

Look for blue-green stains on fixtures or frequent leaks, which indicate corrosion effects without cost.

Measure your water’s pH using reliable test kits

Home testing gives early indication of acidity but should be followed by certified lab analysis for accuracy.

Request comprehensive water quality analysis to confirm corrosivity risks

Laboratory testing provides data on pH, alkalinity, and minerals necessary for treatment decisions.

Applying the Documented Solution: C-Series Corrosive Water Damaging Pipes Filter

Once water corrosivity and household demand are known, the C-Series System ships ready to configure for filtering corrosive water components that damage pipes. It is designed specifically to reduce corrosion effects documented in regions like New Hanover County’s aquifer 211PEED.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2017-05-25. 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 211PEED aquifer (New Hanover County): 66 results from 46 wells, median 7.1 standard units, range 4.3-7.8 standard units; EPA secondary standard for pH is 6.5-8.5 (aesthetic/corrosivity, not health-based); 3 of 66 sampled results fell below 6.5