Government sampling conducted by the U.S. Geological Survey found that groundwater from aquifer 112SRFD in Merrimack County, NH, contains measurable hardness levels, assessed across six samples from three separate wells sampled between 2011 and 2019.
Maintenance Rhythm of the Fleck System
The Fleck Acidic Water + Hard Water (Well) System with a 32,000 grain capacity ships ready to configure for residential use. Once operating, regular service intervals depend on household water usage, but routine checks typically occur every few months to maintain effective water conditioning. This includes monitoring system performance and replenishing the conditioning media as necessary to ensure ongoing neutralization of acidity and reduction of hardness minerals.
Sample Size and Well Distribution Behind the Data
The figures come from six hardness measurements collected from three wells within the aquifer. These wells range in depth from 28 to 49 feet. While three wells provide insight into the area's groundwater hardness, this limited dataset means the measurements give a general regional indication but cannot specify the hardness in any individual household well.
Interpreting Median and Range for Home Use
The sampling data showed a median hardness level of 38.85 mg/L, with recorded values spanning from 14.6 to 43.4 mg/L. For a homeowner, this range indicates variability in hardness across the aquifer but all within a moderate level. These levels were consistently detected across samples and are below any federal hardness thresholds. Understanding such variability helps homeowners anticipate changes in water quality that might influence household plumbing and appliance performance.
Which Fixtures and Appliances Are First Affected
Acidic and hard water can cause early effects in fixtures and appliances that involve water heating or frequent water contact. For example, water heaters, dishwashers, and washing machines may experience scaling from mineral buildup, reducing efficiency over time. Faucets and showerheads can also show mineral deposits, while acidic water may slightly affect metal fixtures. Recognizing these early signs helps prioritize water treatment decisions.
Comparing Merrimack County's Record with Neighbouring Counties
When comparing Merrimack County's aquifer data with nearby counties, it is important to note that differences in hardness levels may reflect geological variations. However, caution is needed to avoid assuming that water quality in adjacent areas directly applies to this county or to individual households. Each area’s groundwater chemistry is unique, and small sample sizes limit broad generalizations.
How Treated Water Differs at the Tap
With a Fleck Acidic Water + Hard Water (Well) System in place, homeowners can expect reduction in hardness minerals and neutralization of acidity. This results in water that is gentler on plumbing and appliances, potentially extending their lifespan and improving water feel. The system adjusts water chemistry at the point of use, making quality improvements evident immediately at faucets and other water outlets.
In summary, the U.S. Geological Survey's groundwater sampling for Merrimack County's aquifer 112SRFD provides a regional perspective on hardness levels across multiple wells over several years. While informative, this data does not replace testing of individual household water. Further details of this public record are available through the U.S. Geological Survey's water data portal.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2019-10-08. 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 Hardness, Ca, Mg in the 112SRFD aquifer (Merrimack County): 6 results from 3 wells, median 38.85 mg/L, range 14.6-43.4 mg/L; none above any federal threshold