Autotrol Blue-Green Copper Stains Filter

Buy Now

View full details

Starting With Your Water Test Report: What Copper Levels Mean

A laboratory report for copper in water typically provides the concentration measured, often expressed in milligrams per liter (mg/L) or micrograms per liter (µg/L). For Dane County's aquifer system 100SDGV, U.S. Geological Survey sampling found copper present in most tested wells, ranging from 10.0 to 100.0 mg/kg in sediment samples, with a median concentration of 16.0 mg/kg. Detecting copper means instruments measured it, but none of these readings exceeded any federal health thresholds. This means while copper is present, these levels are not health violations.

First Checks and Testing Steps Before Treatment

Before deciding how to address copper staining, consider these steps in order:

• Check household plumbing materials and age to evaluate potential copper release inside your home.
• Look for visible signs of staining on fixtures or laundry to confirm if copper is causing aesthetic concerns.
• Obtain a comprehensive water test from a certified laboratory that specifically measures copper concentration in your tap water to know your household’s exact condition.

These steps help prioritize whether the copper is mainly from your water source or the internal plumbing.

How Copper Enters Groundwater and Distribution in Dane County

In Dane County’s aquifer 100SDGV, copper originates naturally from geological materials. The groundwater interacts with sediments containing copper compounds, as evidenced by the range found in USGS sediment sampling. Additionally, once water enters household plumbing, copper may leach from pipes and fixtures depending on material and condition, contributing further to water copper levels and potential staining.

Long-Term Effects of Untreated Copper Staining

If copper staining is not addressed, affected surfaces such as sinks, tubs, and laundry can develop persistent blue-green discoloration. These stains can be difficult to remove and may require frequent cleaning, which can increase maintenance time and costs. While the staining itself is not a health risk, it can impact the visual appeal and perceived water quality in your home.

How to Interpret Median and Range Data From Area Samples

The median copper concentration of 16.0 mg/kg from Dane County sediment samples means half the measurements fell below this value and half above, reflecting typical regional levels in the aquifer material. The range from 10.0 to 100.0 mg/kg shows variability among different wells. These figures provide a baseline for the natural copper content in local groundwater but do not directly indicate the concentration in any individual home's water supply without specific testing.

First Fixtures and Appliances Where Copper Stains Appear

Copper staining tends to show initially on surfaces that hold water for longer periods or have direct contact with water:

• Bathroom and kitchen sinks where water pools or splashes dry.
• Bathtubs and showers where copper may deposit on porcelain or fiberglass.
• Laundry appliances where copper deposits stain fabrics during washing cycles.

These areas are useful to monitor as early indicators of copper presence causing aesthetic issues.

Plumbing Material and Age’s Role in Copper Staining

The type and condition of your home's plumbing significantly influence copper staining independent of source water copper. Older copper pipes may corrode or leach more copper, especially if water chemistry promotes corrosion. Conversely, newer or non-copper plumbing reduces this contribution. Understanding your plumbing composition helps distinguish between copper from the aquifer versus in-home sources.

Managing Copper Stains With Targeted Water Treatment

Once household water testing confirms copper concentrations causing staining, an Autotrol Blue-Green Copper Stains Filter offers a proven technical approach. This system ships ready to configure for residential use and is designed to reduce copper in water efficiently based on your measured demand. It addresses copper removal to help restore fixture appearance and minimize staining over time.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2022-05-24. 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 Copper in the 100SDGV aquifer (Dane County): 20 results from 7 wells, median 16.0 mg/kg, range 10.0-100.0 mg/kg; none above any federal threshold