Pentair Black Manganese Stains Filter

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The role of plumbing material and age, separate from the source water

Manganese can interact with household plumbing materials and the age of those materials to affect water quality apart from what comes from the groundwater itself. Older plumbing systems with certain metal components or deposits may cause manganese to accumulate or release in varying amounts, influencing staining or discoloration. This means that even if the supply water entering the home has consistent manganese levels, the plumbing can modify what is noticeable or measurable at the tap. Differentiating how much manganese impact comes from plumbing versus source water is vital before choosing a treatment path.

How the constituent enters groundwater or the distribution system in this region

In New Hanover County, manganese in water originates naturally in the aquifer 124CSLH as it interacts with soil and rock formations. The U.S. Geological Survey's sampling identified manganese presence in all tested wells reaching depths between 40 and 176 feet. This indicates that manganese leaches from geological materials into the groundwater, becoming part of the supply well water. Municipal systems drawing from this aquifer also contain manganese at similar levels, although treatment and source blending may alter concentrations delivered to homes.

A worked example: reading the record's median and range as a homeowner would

The government’s data for aquifer 124CSLH show a manganese median concentration of 29.35 micrograms per liter (µg/L) with an observed range from 0.35 to 147.0 µg/L over 20 samples from 16 wells. As a resident, understanding this means recognizing that manganese is consistently present at low to moderate levels in the area’s groundwater. The median provides a typical expected value, while the range shows variability due to well location and depth differences. This information does not specify your home’s water manganese level but gives context for what the area’s water generally contains.

The order in which to rule things out, from cheapest check to laboratory test

• Visual inspection: Look for common signs such as staining or deposits on fixtures that can indicate manganese presence influenced by plumbing.
• Water clarity and taste: Though manganese has no odor or strong taste at these levels, changes may prompt further check.
• Test plumbing materials: Assess your pipes and fixtures for corrosion or buildup that could release manganese independently of source water.
• Laboratory testing of your water: Obtain a precise manganese concentration through certified lab analysis to understand your actual water condition.

What 'detected', 'median' and 'range' mean in the sampling record on this page

In the U.S. Geological Survey’s sampling data for New Hanover County’s aquifer 124CSLH, "detected" means instruments measured manganese in every sample; it does not imply any violation or unsafe condition. The "median" is the middle value in measured concentrations, representing the typical level found across sampled wells. The "range" shows the lowest and highest measurements encountered, reflecting natural variation in groundwater manganese concentrations. All values recorded were below any federal safety thresholds, indicating no regulatory health concerns from these samples.

Considering these definitions helps correctly interpret the data and avoid misconceptions about water safety based only on detection.

In closing, the manganese measurements described here come from area-specific groundwater sampling of 16 wells in New Hanover County’s aquifer 124CSLH taken between August 2013 and June 2024. The full dataset and additional details are publicly available via the U.S. Geological Survey’s groundwater data portal.

For households seeking treatment options, the Pentair Black Manganese Stains Filter ships ready to configure and is designed to reduce manganese-related staining and discoloration commonly found in this region’s water. Considering both plumbing system factors and source water levels will help make an informed choice between available approaches.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2024-06-18. 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 Manganese in the 124CSLH aquifer (New Hanover County): 20 results from 16 wells, median 29.35 ug/L, range 0.35-147.0 ug/L; none above any federal threshold