A & L Laboratory is a State of Maine accredited drinking water laboratory. We specialize in microbiology, radon, arsenic, heavy metals, inorganics and organics of well water. Safe drinking water is essential to maintaining good human health. Most public water systems are required to test their water periodically to ensure that it is safe for all of those consuming it. So, how do you know if your well water is safe to drink? It all starts with a simple water analysis that can provide you with the information you need to ensure the safety of your family's health and notify you of any needed maintenance on your home. Regular testing of your water will alert you to any quality changes, and provide you with the information you need to ensure that your family's water is safe to drink.