D.M. Anderson Inc. is an established leader for service and representing innovative environmental water monitoring equipment for the water and wastewater industry. We offer a wide range of products and services. Our knowledgeable and friendly staff will be happy to assist you with choosing the proper equipment for your next project. We offer a full line of open channel flow meters, samplers, fiberglass shelters, flumes, and metering manholes as well as many other quality products to fulfill all your water monitoring needs.