Pentair Orange Iron & Rust Stains Filter

Buy Now

View full details

What to Note Before Seeking Treatment Advice for Iron and Rust

Before considering water treatment options, it is important for homeowners to identify key details about their water source. Write down if your water comes from a private well or municipal supply, the depth of your water source if known, and any visible signs of iron or rust such as reddish staining or metallic taste. Additionally, results of any recent water testing you may have performed will help clarify your specific iron levels and conditions.

Sample Size, Wells, and the Meaning of Area Data

The iron data for Arapahoe County’s aquifer 111ALFP comes from 183 water quality results obtained from three separate wells sampled between 2010 and 2025. While this provides a substantial dataset for the area, data from only three wells means conditions can vary at specific homes. The median iron concentration measured was 408 micrograms per liter, with individual samples ranging from 5.8 to 706 micrograms per liter. This variation reminds homeowners that their own water may be higher or lower than the area median and range indicate.

Impact of Well and Sample Depth on Iron Levels

The sampled wells were shallow, ranging from 20 to 25 feet deep. Iron concentrations can vary with well depth since iron tends to dissolve more readily in groundwater interacting with iron-rich soils or minerals near the surface. Therefore, homeowners with deeper or differently constructed wells might see different iron profiles. Knowing the depth of your own water source can help interpret how closely the regional data might apply to your household.

Interpreting the Median and Range for a Residential Setting

For a home drawing water from a similar aquifer, the reported iron concentrations suggest most users in this area encounter detectable iron in their water, albeit below any federal health thresholds. The median value of 408 micrograms per liter indicates a typical iron presence, but the range up to 706 micrograms per liter shows some samples with notably higher iron levels. This level of iron can cause visible rust stains on plumbing fixtures and reduce the lifespan of appliances exposed to water, especially if iron oxidizes upon exposure to air.

Fixtures and Appliances Sensitive to Iron and Rust

Home components most affected include sinks, toilets, showers, and dishwashers where iron deposits leave reddish brown stains. Water heaters and washing machines may also experience scaling or reduced efficiency due to iron build-up. Identifying which fixtures show early signs of staining or corrosion can help target treatment and maintenance efforts before more extensive damage occurs.

Distinguishing Iron from Commonly Confused Water Issues

Iron presence often leads to rust-colored water or stains but should be distinguished from other water quality issues such as manganese staining or sulfur-related odors. Manganese can also cause discoloration but differs chemically and in treatment needs. Sulfur compounds might produce a rotten egg smell but do not cause rust stains. Accurate water testing helps clarify the specific cause and guides appropriate treatment choices.

These data summarize iron concentrations found by government sampling in Arapahoe County's aquifer 111ALFP based on three wells sampled at 20 to 25 feet depth from 2010 through 2025. For the full dataset and details, visit the U.S. Geological Survey groundwater monitoring site for location 394148103513300. Homeowners interested in managing iron and rust can consider the Pentair Orange Iron & Rust Stains Filter, which ships ready to configure and is designed to address iron-related staining and water quality concerns effectively.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2025-12-12. 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 Iron in the 111ALFP aquifer (Arapahoe County): 183 results from 3 wells, median 408.0 ug/L, range 5.8-706.0 ug/L; none above any federal threshold