1. How Many Samples and Wells Are Behind the Regional Water Data?
In Hennepin County’s aquifer 112GSSG, the U.S. Geological Survey collected 23 chloride measurements from 20 wells sampled between 2011 and 2016. These wells ranged in depth from 9 to 29 feet. The limited number of wells means this data represents a regional snapshot rather than a detailed local profile of any one household’s water. It indicates general conditions in the aquifer but does not predict the exact makeup of your well water.
2. Differences Between Public-System Records and Private Well Testing
Government-sampled wells provide information about the aquifer or water source broadly. However, your private well’s conditions can vary significantly due to depth, location, and other factors. Public records help identify potential water concerns in the area but do not replace a certified test of your own water. To understand corrosiveness and treatment needs for your home, a current, detailed lab report from your private well is essential.
3. What the Measured Chloride Range Means Relative to Federal Guidelines
The chloride results ranged from 2.28 to 328.0 mg/L, with a median of 76.5 mg/L across sampled wells. Two results were above the secondary standard of 250 mg/L, set for aesthetic factors like taste and staining. Exceeding this level is not a health violation or safety concern; it simply may affect plumbing surfaces or water’s flavor. Understanding these limits clarifies what chloride data indicates for corrosion risk and equipment choice.
4. Meaning of Terms ‘Detected,’ ‘Median,’ and ‘Range’ in This Context
‘Detected’ means the measurement instrument found some amount of chloride in all tested wells. This does not imply a problem or exceedance. The ‘median’ value of 76.5 mg/L is the middle point of all results, showing a typical concentration in this area. The ‘range’ from 2.28 to 328.0 mg/L reveals how chloride levels vary among wells, emphasizing the importance of testing your specific water to know your starting point.
5. Understanding Your Certified Lab Report for Corrosive Constituents
A lab report on your water will detail chloride concentration along with other parameters influencing corrosiveness. Learn to read the report’s values in relation to federal secondary standards and interpret what these mean for pipe and fixture longevity. This knowledge assists in selecting the right equipment to manage corrosive water based on your measured conditions, not just area averages.
Final Step: Choosing Equipment for Your Corrosive Water Need
Once you have tested your household water and understand its corrosive characteristics, consider the Fleck Corrosive Water Damaging Pipes Filter. This system ships ready to configure and is designed to address corrosive water concerns identified through your measurements, helping protect your plumbing and improve water quality at home.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2016-09-08. 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 Chloride in the 112GSSG aquifer (Hennepin County): 23 results from 20 wells, median 76.5 mg/L, range 2.28-328.0 mg/L; 2 above an AESTHETIC secondary standard only (secondary standard 250.0 mg/L (aesthetic)) - not a health finding
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