“Testing” can start with your senses: Assessing your water’s appearance, taste, and smell can all be good first steps. The best way to know for sure what’s going on with your water is to use a well water testing kit, which can tell you about the specific levels of bacteria, dissolved solids, and hardness of your water with precision. Have a pro test your well water at least once per year.

No, a standard home inspection includes the basics and does not offer lead paint testing. Professional lead paint inspectors need specific licenses to perform these inspections, which not all home inspectors have. If you suspect lead paint in the home you are about to purchase, you will need to pay separately to have that done. If the findings come back positive, you may be able to negotiate with the buyer to cover the cost of the removal.

Avoid disturbing suspected lead-containing materials and follow professional guidance on sample collection.

Several different measurements may be used to determine the amount of lead in water. The most common unit of measurement is micrograms per liter (µg/L), which is the same as parts per billion. Another measurement is milligrams per liter (mg/L), which is the same as parts per million.