The U.S. Geological Survey groundwater sampling in Harney County’s N100BSNRGB aquifer detected iron in three sample results from two wells, with concentrations ranging from 58.0 to 73.0 micrograms per liter, and a median value of 67.0 micrograms per liter. None of these results exceeded any federal threshold for iron.
Maintenance Rhythm of the Fleck Iron Bacteria & Slime Filter System
Regular media backwash is essential for keeping biological films in check
Salt or chemical regeneration is not required for bacterial iron control
Periodic filter tank cleaning prevents slime accumulation and maintains flow
System’s cycle depends on household water demand and iron load
Sampling Scope and Limitations of the USGS Data
Data represent three samples collected across two wells between March and October 2018
Wells ranged in depth from 75 to 300 feet within the Harney County N100BSNRGB aquifer
Limited number of samples means local variations in iron levels may exist
Results should not be interpreted as definitive for any individual household well
Understanding Certified Laboratory Testing for Iron in Water
Tests quantify soluble and particulate iron concentrations in micrograms per liter
Lab reports indicate detected levels but do not imply unsafe conditions when below federal thresholds
Iron presence alone does not assess bacterial activity without microbiological assays
Replicate testing over time helps establish reliable water quality trends
Interpreting Terms in the Sampling Record
Detected means iron was measured at levels above the instrument’s reporting limit
Median indicates the middle value of the three samples in this data set
Range shows the lowest and highest iron measurements recorded among the samples
No sample exceeded any federal iron concentration threshold, indicating compliance
Key Information to Gather Before Selecting Treatment
Obtain a current water analysis from a certified laboratory specific to your household well
Note well depth, water usage patterns, and any visible water quality issues
Record any previous treatment history or related maintenance events
Describe symptoms like staining, slime buildup, or taste changes to guide approach
This review is based solely on the U.S. Geological Survey groundwater sampling record for Harney County’s N100BSNRGB aquifer, which includes three iron results from two wells during 2018. For detailed data, please consult the USGS monitoring location 433425118561801.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2018-10-29. 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 N100BSNRGB aquifer (Harney County): 3 results from 2 wells, median 67.0 ug/L, range 58.0-73.0 ug/L; none above any federal threshold
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