Public Water Supply Information

Private Well Information

Identifying reasons to test your water

The chart below lists common conditions or nearby activities that well owners should be aware of and the substance(s) that you should consider testing for to ensure your well is safe. Not all of the substances listed pose an immediate or long term health problem, some impact quality of life only such as appearance, taste, and odor.
Conditions or Nearby Activities:Test for:
Recurring gastro-intestinal illnessColiform bacteria
Household plumbing or service lines that contain leadpH, lead, copper
Radon in indoor air or region is radon richRadon
Corrosion of pipes, plumbingCorrosion, pH, lead
Nearby areas of intensive agricultureNitrate, nitrite, pesticides, coliform bacteria
Coal or other mining operations nearbyMetals, pH, corrosion
Gas drilling operations nearbyChloride, sodium, barium, strontium
Dump, junkyard, landfill, factory, gas station or dry-cleaning operation nearbyVolatile organic compounds, total dissolved solids, pH, sulfate, chloride, metals
Odor of gasoline or fuel oil, and near gas station or buried fuel tanksVolatile organic compounds
Objectionable taste or smellHydrogen sulfide, corrosion, metals
Stained plumbing fixtures, laundryIron, copper, manganese
Salty taste and seawater, or a heavily salted roadway nearbyChloride, total dissolved solids, sodium
Scaly residues, soaps don’t latherHardness
Rapid wear of water treatment equipmentpH, corrosion
Water softener needed to treat hardnessManganese, iron
Water appears cloudy, frothy or coloredColor, detergents