Well Water Testing Protects Your Family's Health

By Marissa Velazquez


In many locations, homes require wells to meet their needs. Although the EPA requires that public supplies be tested to ensure the match the standards that have been established, such procedures are not required of private wells located in the USA. Well water testing is beneficial in ensuring that the home has a safe supply to meet occupant needs.

Several tests are used as determiners of the quality of the supply along with the presence of contaminates. Indicator strains of bacteria and chemicals, which do not necessarily cause illness, are checked. Their presence indicates the supply may have been contaminated by germs, including those in raw sewage that can cause illness.

Contamination by the bacteria found in the digestive systems of other warm blooded animals is one way to test for possible contamination of disease causing bacteria. The total coliform count is an indicator of the number of this type of bacteria in a specified amount of sample. If the count is high, the chances of other bacteria that are more harmful being in the tested material are greater.

From the microbiological standpoint, the more specific E. Coli test is often used. Positive E. Coli tests indicate contamination by fecal material. While the indicator E. Coli that grow on the microbiologist plates are generally harmless, there is a greater chance of germs that do cause diseases such as hepatitis, diarrhea or dysentery are present. This indicator strand of E. Coli should not be confused with a more harmful strain often on the news.

The pH of the sample indicates if it is acid or basic. The pH affects the taste as well as the looks of one's supply. The pH of a neutral sample is 7.0. If numbers are much higher or lower than 7.0, the liquid can leach heavy metals from pipes to the tap. Liquids that are not neutral can also damage pipes and over time make the occupants of the home sick.

Nitrates are a part of many foods, but should be in the pipes of the home as continual consumption can make you ill. Sources of these chemicals include flooded sewers, septic tanks, animal waste and polluted storm waters. They can also come from farm runoff, affecting the quality of wells in the area. In addition, natural deposits in the area often increase their levels.

Volatile organic compounds are a problem in some regions. They are generally the result of industrial pollution or fuel spills. The exact VOCs for which the sample should be tested will vary by location. Check with the local heath department or testing lab for further information.

Specific locations may also have specific healthy concerns. Chemicals, including heavy metals may be a problem locally. In other areas, wells should be tested for specific bacteria in order to ensure the home has a safe supply.

It is generally a good idea to submit samples for well water testing on an annual basis. Submit samples if you notice a difference in the quality of the supply or if there have been land disturbances or repairs to the system. Proper testing is essential to ensure your family remains healthy.




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