Robillard said the majority of homeowners using a municipal water supply receive water that already has been treated and disinfected. Most homeowners not served by municipal systems use wells, natural springs or roof cistern systems to supply their water needs. Robillard estimates there are about 900,000 wells in Pennsylvania and that 80 percent of individual water-system owners use wells. If a home has a well or another type of water system, the homeowners should have it tested as soon as they move in. Robillard emphasizes that homeowners should have their water tested by a certified analytical lab.
Yearly testing is recommended.
Total Dissolved Solids. This test is an overall indicator of water quality, representing the extent to which minerals and salts are dissolved. This test can provide information about potential water problems such as corrosivity or aggressive water. This site was developed by Annemarie Mountz .