As one of the largest environmental laboratory networks in the world, ALS has the resources and expertise to meet the analytical needs of all your projects. ALS provides a full range of environmental testing services, specializing in the analysis of air, sediment, water, and much more. Experienced experts at ALS are ready to provide the reliable data that helps clients make informed decisions about projects. Local Actions, Global impact: Concerned with the safety of your drinking water or interested in testing your local drinking water quality? ALS has the right water testing kit for you. Contact us to test for contaminants, such as lead, in your drinking water.