A well certification is a professional inspection and written report confirming that a water well is structurally sound, compliant with local regulations, and capable of delivering safe, reliable water.

The EPA recommends testing private wells at least once a year for bacteria, nitrates, and other local contaminants. A certification may also be required during major transactions such as buying, selling, refinancing, or transferring property ownership, or after events like flooding or plumbing changes. Both regular testing and certification help ensure your water remains safe and your well system reliable.

Typical contaminants include bacteria (like coliform), nitrates, arsenic, radon, and heavy metals. Contamination risks vary by region and soil type, which is why certified testing is essential.

Warning signs include low water pressure, cloudy or discolored water, strange tastes or odors, or sudden increases in utility costs. These may indicate pump failure, casing damage, or water contamination.

The process typically involves inspecting the well’s construction, casing, pump, and water flow, as well as testing for water quality, safety, and compliance with local health standards.

Most certifications can be completed in a single visit, usually within 1–2 hours. Water quality testing may take additional time, as lab analysis is often required.