Water Source and Local Aquifer Characteristics
Homes in Androscoggin County primarily draw groundwater from the bedrock aquifer located deep underground, often between 262 and 304 feet in depth. Water moves through the natural fractures and pores in the bedrock, gathering minerals like calcium and magnesium along the way. These minerals contribute to water hardness, which is a common consideration for households in the region.
Understanding Certified Laboratory Tests for Hardness
Reports Express Hardness as Milligrams per Liter
Certified laboratory testing measures hardness by quantifying calcium and magnesium ions in milligrams per liter (mg/L). For the Androscoggin County bedrock aquifer, three wells sampled between August and October 2011 showed hardness levels ranging from 54.5 to 89.3 mg/L, with a median of 64.7 mg/L.
Knowing What Measurements Indicate
These figures indicate the concentration of hardness minerals but do not signify any violation or unsafe condition. No federal thresholds were exceeded in this sampling. Each well's reading is specific to its own water, so a homeowner should obtain an individual water test to determine the exact hardness in their household supply.
Effects of Treatment Technology on Tap Water Quality
Using a system such as the C-Series Hard Water — Large Home System can significantly reduce hardness minerals present in water. This results in softer water at the tap, which helps prevent scale buildup on plumbing fixtures and appliances common in homes with larger water usage.
Consistent Water Softness During High Demand
This technology ensures softened water is always available on demand.
Comparing Public-System Records to Private Well Testing
Regional Aquifer Sampling Reflects Area-Wide Conditions
The government sampling data represents median hardness levels across several deep wells within the Androscoggin County bedrock aquifer, providing an overview of regional groundwater characteristics rather than specific household conditions.
Individual Well Tests Are Necessary for Precise Information
Because hardness can vary significantly even within the same aquifer, private well owners should conduct direct testing of their water to understand their unique hardness level and inform treatment decisions.
Example: Interpreting the Median and Range in the Government Record
Median Hardness of 64.7 mg/L
This median value means that half of the sampled wells had hardness below 64.7 mg/L and half had hardness above this level, illustrating typical hardness expected in the area’s bedrock groundwater.
Range Between 54.5 and 89.3 mg/L
The range shows variability among individual wells, underscoring the importance of local testing. The lowest sampled hardness was 54.5 mg/L and the highest was 89.3 mg/L, all within safe regulatory limits.
Clarifying Sampling Terms in the Record
Detected Means Measured, Not Exceeding Standards
All three samples detected hardness at measurable levels; none were below reporting limits. Detection simply means the presence of hardness minerals was confirmed.
Median and Range Outline Regional Variability
The median provides a central value, while the range highlights variation across wells. Together these help homeowners understand regional water hardness patterns but do not define individual well conditions.
Summary and Reference
The hardness data reviewed here covers three separate deep wells sampled in the Androscoggin County bedrock aquifer during late 2011, providing an area-wide perspective on calcium and magnesium levels. For exact household water hardness, testing of the specific water supply is required. More details on the sampling are available from the U.S. Geological Survey groundwater monitoring site.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2011-10-13. 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 Hardness, Ca, Mg in the BEDROCK aquifer (Androscoggin County): 3 results from 3 wells, median 64.7 mg/L, range 54.5-89.3 mg/L; none above any federal threshold