Approximately 40,000,000 Americans receive their drinking water from Individually owed and operated sources, such as household wells. As “private” sources, well owners are soley responsible for the quality of water provided.
The EPA recommends well owners to test water for bacteria and nitrates at least once a year. If any changes are noticed in the water’s taste, odor, or color, conduct testing on a quarterly basis.
The EPA recommends testing for the presence of lead in your primary kitchen tap, at least once.
One of the most important and basic concepts to understand about the Earth’s water is that it is not pure. The more shallow the well, the greater the potential for contamination. Bacteria-namely coliforms are the most common contaminants found in private wells. Microbiological organisms are naturally occurring and can be found in the source water as well as in the plumbing systems. Although the potential for serious diseases remains a concern, the most common illnesses due to the microbiological contamination of drinking water are short-term gastrointestinal disorders.
Nitrates represent the second most common type of contaminant found in private wells. The presence of this naturally occurring chemical suggest that animal and/or human wastes, or agricultural applications like fertilizers are entering the well. Nitrates are a special concern to children and women of child bearing age.
The contamination of private wells by other chemical contaminants, whether naturally occurring or man-made, remains a potential problem, but generally less frequently than the types described above. The degree to which any well is vulnerable to contamination depends on a variety of factors, including local geology, depth to water table, characteristics of soil, water, and climate, local land use activities, and characteristics of home plumbing materials.
The following is a Quick Reference List of Noticeable Problems in private water supply, as reported by the EPA:
Scale or scum from calcium or magnesium salts
Unclear/turbid water from dirt, clay salts, silt or rust
Green stains on sinks or faucets caused by high acidity
Brown/red stains on sinks, dishwasher or clothes in wash points to dissolved iron
Cloudy water that clears upon standing may have bubbles from poorly working pump or problem with filters
Salty or brackish taste from high sodium content
Alkali/soapy tate from dissolved alkaline minerals
Metallic taste from acidity or high iron content
Chemical taste from industrial chemicals or pesticides
A rotten egg odor can be from dissolved hydrogen sulfide gas or certain bacteria. If the smell only comes with hot water, it is likely from a part in the water heater
A detergent odor and water that foams when drawn could be seepage from septic tanks into your ground water well
A gasoline or oil smell indicates fuel oil or gasoline likely seeping from a tank into the water supply
Methane gas or musty/earthy smell from decaying organic matter in water
Chlorine smell from excessive chlorination
To learn more about Private Well Systems
Water Filtration Systems