What the Measured Iron Range Means Under Federal Standards
Iron Concentrations in LaPorte County Aquifer 110QRNR
The U.S. Geological Survey sampled groundwater from five wells in LaPorte County's aquifer 110QRNR between May 2022 and May 2026. Iron was detected in 28 of 54 results, with concentrations ranging from 5.5 to 14,200 micrograms per liter (ug/L) and a median of 3,885 ug/L. The other 26 results were below the reporting limit.
No Federal Threshold Exceeded
None of the measured iron concentrations in these samples exceeded any federal regulatory threshold. This means that, according to this record, iron levels in the area wells do not present a violation or legal safety concern.
What This Does Not Establish
These values reflect the sampled wells only, not an individual household's water supply. A specific well’s iron content can only be known through its own test. Detection does not imply a problem, nor does exceeding common aesthetic thresholds indicate health risks.
Household Fixtures and Appliances Affected First by Iron Bacteria
Iron Bacteria and Residues
Iron bacteria can cause slime, staining, and discoloration inside water pipes and fixtures. The first signs often appear on fixtures with slower flow or where water sits, such as shower heads, faucets, and toilet tanks.
Impacts on Appliances
Water-using appliances, like dishwashers and washing machines, may also experience build-up or staining where iron bacteria provide iron and bacterial slime combined.
How the C-Series Iron Bacteria & Slime Filter Works
Removing Iron Bacteria and Slime
The C-Series System is designed to reduce iron bacteria and associated slime in residential water supplies. It uses filtration technology documented to capture and neutralize iron bacteria particles and prevent slime formation.
Ready to Configure at Home
This equipment ships ready to configure for point-of-entry treatment, providing an option for households experiencing iron bacteria issues based on their own water test results.
Influence of Sample Depth and Source Type on Iron Levels
Shallow Wells Sampled in LaPorte County
The wells sampled were from 10 to 30 feet deep. Shallow well sources often show more variation in iron levels and bacterial presence compared to deeper aquifers.
Expect Variation Based on Local Conditions
Iron concentrations and bacteria can differ depending on well depth, construction, and aquifer parameters. Testing the specific household well is necessary to determine local status.
Steps to Narrow Down the Cause of Iron Bacteria Symptoms
Start with Simple Observations
- Look for slime, staining, or discoloration on fixtures and appliances.
- Check if symptoms appear consistently or seasonally.
- Note whether water has changed appearance or taste.
Proceed to Laboratory Testing
Obtain a certified laboratory water test focusing on iron and iron bacteria presence to confirm your water’s specific condition before considering treatment.
How Iron Bacteria Enters Groundwater in LaPorte County
Natural Geology and Iron Occurrence
Iron is naturally present in the aquifer 110QRNR and can combine with bacteria that thrive in low-oxygen, iron-rich groundwater.
Groundwater Movement and Bacterial Growth
Iron bacteria can grow when well conditions allow oxygen exposure, such as through well casing or surface water intrusion, leading to slime formation in household water systems.
This summary relies on the U.S. Geological Survey groundwater iron sampling record collected from wells in LaPorte County’s aquifer 110QRNR. For source details, visit waterdata.usgs.gov/monitoring-location/412354086421005/.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2026-05-13. 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 110QRNR aquifer (LaPorte County): 54 results from 5 wells, median 3885.0 ug/L, range 5.5-14200.0 ug/L; none above any federal threshold

