This week, your household faces a key choice between two technical approaches to address fluoride concerns in your water supply.
Myth: Fluoride Levels in Cumberland County Are Directly Comparable to Neighboring Areas and Immediately Indicate Treatment Need
The U.S. Geological Survey sampled groundwater from aquifer 112OTSH in Cumberland County, ME, analyzing fluoride concentrations from six results spanning two wells collected between 2014 and 2017. The median fluoride concentration was 0.035 mg/L, with values ranging from 0.02 to 0.05 mg/L. Two results were below detection limits, while four showed measurable fluoride. These results are consistent within this aquifer but should not be assumed reflective of your household’s water or nearby counties’ supplies. Adjacent areas may have different geologic formations affecting fluoride levels, and only testing your own water can establish your specific concentration.
Myth: Maintenance of Fluoride Filtration Systems Is Complex and Frequent
The documented C-Series Fluoride Filter ships ready to configure and is designed to integrate smoothly with home water systems. Its maintenance rhythm is straightforward: filters require periodic replacement to maintain efficacy, with timing dependent on water consumption and fluoride levels detected by household water testing. This predictable care cycle contrasts with more demanding treatment methods and allows homeowners to plan ahead without needing specialized professional intervention.
Myth: Fluoride is Removed by Simple Filtration Methods
The C-Series System uses targeted adsorption media specifically designed to reduce fluoride concentrations. Unlike general filtration that may remove particulates or sediments, this technology chemically binds fluoride ions, effectively lowering their presence in treated water. This approach addresses fluoride at the molecular level and helps achieve water quality consistent with homeowner expectations based on individual water tests.
Myth: The Median and Range Values from USGS Sampling Define Your Home’s Fluoride Levels
Consider the median fluoride concentration of 0.035 mg/L and the range from 0.02 to 0.05 mg/L as a regional benchmark rather than your household’s specific reading. These figures come from wells drilled 22 to 38 feet deep and sampled over several years. Your well’s depth, construction, and local hydrogeology could lead to different fluoride levels. Use these statistics to understand probable background fluoride in the aquifer but confirm your water’s actual condition with a certified laboratory test.
Myth: Well Depth and Source Type Have No Impact on Fluoride Levels
Sampling from wells between 22 and 38 feet deep indicates fluoride presence within this depth range of aquifer 112OTSH. Deeper wells or surface water sources may show different fluoride profiles due to varying geochemical conditions. Thus, treatment choices should factor in your water source and well depth, which influence how fluoride behaves in your water supply and how treatment technologies perform.
What Not to Conclude From This Regional Data
The measured fluoride concentrations in Cumberland County’s aquifer 112OTSH do not exceed any federal thresholds for safety or health risk. Detection does not imply that your well water has elevated fluoride, nor that municipal water in the area is unsafe. Only direct testing of your water will confirm fluoride levels requiring specific treatment. The C-Series Fluoride Filter offers a documented solution for households deciding between treatment approaches after understanding their own water profile in relation to regional data.
Where this information comes from
Source: USGS groundwater sampling. Sampled 2017-10-05. 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 Fluoride in the 112OTSH aquifer (Cumberland County): 6 results from 2 wells, median 0.035 mg/L, range 0.02-0.05 mg/L; none above any federal threshold

