How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means
The iron data for Broward County's aquifer 112BSCNN comes from 62 samples taken from 42 separate wells over a decade, from 2010 to 2020. These wells ranged in depth from 10 to 152 feet. This set offers a solid regional overview rather than specifics for any single household or well. Since the samples cover multiple wells and years, the findings reflect broad conditions in the aquifer but cannot be used to determine the exact iron content in your water until you test your own supply.
The Role of Plumbing Material and Age, Separate from the Source Water
Rust-colored water is often assumed to come solely from iron in the source water. However, household plumbing can contribute significantly to iron and rust presence. Older pipes, especially those made of iron or steel, may corrode internally, releasing rust particles that discolor water and cause stains. Even if the aquifer’s iron levels are moderate, plumbing materials and their condition can affect water appearance independently. Understanding this helps separate source issues from household factors.
How Seasonal or Multi-Year Variation Shows in the Record (Dates and Ranges Given)
The iron measurements from Broward County span more than ten years with sampling dates from March 2010 through November 2020. Iron concentrations detected ranged widely, from as low as 3.5 micrograms per liter to as high as 4600 micrograms per liter, with a median of 502 micrograms per liter. This variability indicates that iron levels in the aquifer fluctuate over time and location. Seasonal or hydrologic changes may influence iron availability, so occasional testing of your own water is important to understand current conditions.
The Household or Facility Symptoms That Do and Do Not Point to This Problem
- Symptoms that may indicate iron and rust impact include: reddish or brownish staining on sinks, bathtubs, and plumbing fixtures; rusty water discoloration especially following inactivity or disturbance in piping; and metallic taste in water.
- Symptoms not directly caused by iron include: cloudy or milky water, unpleasant odors unrelated to rust (like sulfur or chlorine smells), or visible particles that resemble sediment but are not iron particles.
Recognizing these signs will help clarify whether iron and rust are likely contributors or if other water issues may be present.
Why Aesthetic Secondary Standards Differ From Health-Based Limits, Applied to This Constituent
The U.S. Geological Survey data show no iron concentrations above any federal health-based thresholds in Broward County’s aquifer. Iron is regulated under aesthetic secondary standards that address water taste, stain potential, and color rather than safety. Exceeding these guidelines does not mean the water is unsafe, only that it may cause staining or taste concerns common in residential settings. This distinction is important when deciding on treatment options because the goal is typically to improve water appearance and reduce staining rather than to address health risks.
What You Should NOT Conclude From Area Data
The government sampling provides a useful regional snapshot of iron levels in aquifer 112BSCNN but cannot specify the iron content of your own household water. Variations in well depth, local geology, plumbing materials, and household water use mean your experience may differ significantly. Only water testing of your own supply can confirm iron concentration and the need for particular treatment.
For residential water affected by iron and rust, the C-Series Orange Iron & Rust Stains Filter ships ready to configure as a treatment option. It is designed to reduce iron-related staining and discoloration when applied based on tested water conditions. Using area data as background and combining it with your test results will help you select the most suitable class of treatment to address the problem effectively.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2020-11-19. 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 112BSCNN aquifer (Broward County): 62 results from 42 wells, median 502.0 ug/L, range 3.5-4600.0 ug/L; none above any federal threshold