1. What Additional Questions Do Commercial or Industrial Operators Ask?
While households focus on water taste, staining, and appliance impact, commercial or industrial operators consider process water requirements and regulatory compliance. They might inquire about water hardness levels in grains per gallon or milligrams per liter, detailed iron speciation (ferrous vs. ferric), and potential effects on equipment lifespan and product quality. They also assess flow rates and peak demand, critical for sizing treatment equipment, and may request more frequent or ongoing monitoring data.
2. How Many Samples and Wells Support the Reported Figures, and What Does a Small Sample Imply?
The iron data for Rockingham County’s aquifer 112ICCC comes from 53 samples collected from a single well over five years, from March 2014 to August 2019. Each sample reflects conditions at the well depth of approximately 83 feet. While this dataset provides a focused view of one point within the aquifer, it does not capture variability across multiple wells or localized changes. A single-well sample set means that while the median and range offer useful indicators, individual household water tests remain essential for specific concerns.
3. Distinguishing Iron From Other Common Water Issues
Hard water and iron are often confused with sediment or manganese problems. Iron typically causes reddish-brown staining on fixtures and laundry and may impart a metallic taste. It is detected in the Rockingham County aquifer samples with concentrations ranging from 0.016 to 327 micrograms per liter (ug/L), with a median near 235 ug/L. These values are well below any federal safety thresholds, indicating no health-based violation. Unlike sediment, iron is dissolved or finely suspended, requiring treatment methods that target filtration and oxidation rather than simple sediment removal.
4. How Do Sample Depth, Well Depth, and Water Source Type Influence What to Expect?
The samples representing aquifer 112ICCC were taken at depths around 83 feet. Water quality at this depth reflects relatively stable groundwater conditions with limited influence from surface contamination. Shallow wells or surface water sources might show more variability or different constituent levels. Hardness and iron concentrations can vary with depth due to geological formations. Households drawing from similar depths in this aquifer can generally expect iron within the documented range but should test their own water to confirm.
5. Seasonal and Multi-Year Variation Apparent in the Data Record
Sampling between 2014 and 2019 shows detected iron throughout all tests with no samples below reporting limits, indicating consistent presence. The range from about 0.016 to 327 ug/L indicates some variation over time, possibly due to natural fluctuations such as groundwater flow changes, precipitation, or well usage patterns. This consistency suggests that iron is a persistent constituent within this aquifer. Understanding this helps households anticipate ongoing management needs rather than one-time treatment.
In summary, the iron data for Rockingham County's aquifer 112ICCC arises from 53 samples collected from one well at approximately 83 feet depth over a five-year period, all below federal safety thresholds but showing time variation and consistent presence. For individual household decisions, testing your own water is necessary. The Autotrol City Hard Water + Iron System, with a 32,000 grain capacity, ships ready to configure and addresses hardness and iron issues effectively based on the area's documented conditions. More details can be found in the official U.S. Geological Survey groundwater data for this location.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-08-22. 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 112ICCC aquifer (Rockingham County): 53 results from 1 wells, median 235.0 ug/L, range 0.016-327.0 ug/L; none above any federal threshold
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