“Routine inspection of a water well system can help ensure it is operating properly, prolong its useful life, and protect you investment. Most importantly, inspections can protect your health by discovering issues that could result in water quality problems presenting a health risk.”
How often should a water well be serviced?
Annually
Wells should be checked and tested Annually for mechanical problems, cleanliness, and the presence of certain contaminants, such as coliform bacteria, nitrates/nitrites, and any other contaminants of local concern, (for example, arsenic and radon)
Per the CDC