What Is Well Water?

Well water is groundwater obtained by drilling a hole into an aquifer – a permeable rock underneath that contains water.

Tests that Should Be Done on Well Water

Because it comes from the ground, well water, unlike tap water, is not from a large treatment facility, and thus it is possibly contaminated with:

• Microbes
• Naturally occurring contaminants such as arsenic or radon
• Fertilizers and pesticides on the ground
• Septic contaminants as a result of proximity to septic systems



With this kind of possible contamination of your well water, it is important to check your water with a professional and certified water testing company.

Water Tests for Well Water

Testing private well water depends on your circumstances as the owner, but it is highly recommended that you test your well water if you want to use it for drinking purposes. Water in general, including well water, is tested based on the quality indicators used to determine if the water is suitable for consumption. Some signs can indicate whether your water requires testing. 

Common well water tests include:

Total Coliform. This is a test whereby the coliform count is determined. Coliforms are microbes found in warm-blooded animals and contain bacteria. A high coliform count shows the increased possibility of bacteria and other harmful germs in the water.

Fecal Coliform. When a water sample is tested for fecal coliform, a positive result shows the presence of harmful germs which can cause dysentery, diarrhea, or even meningitis

pH. This is a water test meant to measure the pH level of water. PH is an indication of the acidity and basicity of the water. Low pH could cause sickness as it erodes pipes which may result in metal traces in your water.

Nitrate. Nitrate could emanate from septic systems, animal waste, or even flooded sewers. A high nitrate level indicates contamination and shows your well water needs treatment.

Volatile Organic Compounds(VOCs). This tests for industrial-related chemicals based on the location of your well. High VOCs are indicative of harmful chemicals. The substances may be benzene, toluene, or carbon tetrachloride.

Additional well water tests look for sodium, chloride, sulfate, hydrogen sulfide, and completely dissolved solutes

At Mosman Well Works, we offer professional water testing services to ensure that you and your family can safely drink water from your well. Give us a call to schedule your testing.