Understanding Seasonal and Multi-Year Variation in Iron Levels

Sampling spans from November 2012 to September 2025

Data from 13 wells sampled repeatedly over nearly 13 years shows iron presence varies with time and location in San Juan County’s N300COPLTS aquifer.

Iron concentrations range broadly from 20 to 39,000 micrograms per liter

The wide range reflects changing groundwater conditions, but does not automatically indicate a problem in any individual household well.

Most samples detect iron; a minority fall below reporting thresholds

54 out of 65 results confirm iron presence, while 11 were below measurable limits, underscoring iron’s common but variable occurrence.

Changes in Water Quality After Using the C-Series Orange Iron & Rust Stains Filter

The filter reduces iron-related stains and rust discoloration

Once water passes through the C-Series system, households typically see less orange or reddish staining on fixtures and apparel caused by iron oxidation.

Improved clarity and reduced metal taste at the tap

The technology targets iron particles that influence water’s taste and appearance, enhancing everyday water use for a family’s healthful enjoyment.

Differentiating Aesthetic Secondary Standards from Health-Based Limits

Iron’s secondary standards address taste, staining, and corrosion concerns

These guidelines guide acceptable iron levels for appearance and plumbing longevity, not for health safety.

No federal health standard violations were found in the region’s samples

Though iron was detected, none of the 65 samples exceeded federal health thresholds, indicating no regulatory health concern from iron in this aquifer.

Interpreting Iron Ranges Against Federal Standards and What It Does Not Reveal

Detected presence is not equivalent to a violation or health risk

Iron detection means the element was measured, not that it surpasses any health limit or poses danger.

Results reflect area aquifer conditions, not individual wells

Variability in iron levels among wells means testing your own water is necessary to determine your home’s specific situation and needs.

What Changes for Larger or Seasonal Households Regarding Iron and Rust Treatment

Increased water demand may affect filter sizing or replacement frequency

More occupants or seasonal usage warrant consideration of system capacity to maintain iron removal performance continuously.

Vacant periods require attention to water quality maintenance

Homes used seasonally should plan for water treatment readiness to prevent rust buildup and staining upon return.

Conclusion: For households measuring their water demand in San Juan County’s N300COPLTS aquifer, the C-Series Orange Iron & Rust Stains Filter ships ready to configure, designed to address the variable iron conditions documented by government sampling while improving water clarity and reducing stains related to rust and iron oxidation.

Where this information comes from

Source: USGS groundwater sampling. Sampled 2025-09-18. 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 Iron in the N300COPLTS aquifer (San Juan County): 65 results from 13 wells, median 325.0 ug/L, range 20.0-39000.0 ug/L; none above any federal threshold