Minimum annual checks for your well include testing for total coliform bacteria, nitrates, total dissolved solids, and pH levels, and an inspection for mechanical issues in the spring. If you suspect other contaminants, test for those as well. However, consider potential problems before testing as tests can be costly. Consult local experts, such as the health department, for information on local contaminants of concern. You should also test your well if:
- There are known issues with well water in your area.
- Problems occur near your well, such as flooding, land disturbance, or waste disposal sites.
- You repair or replace any part of your well system.
- There is a change in water quality, such as taste, color, or odor.
