National Aquatic Resource Surveys

Quick Finder
National Coastal Assessment National Coastal Condition Report	National Lakes Assessment National Rivers and Streams Assessment	National Wetland Condition Assessment Wadeable Streams Assesssment

The U.S. Environmental Protection Agency, states, and tribes are conducting a series of national aquatic resource surveys. Often referred to as probability-based surveys, these studies report on core indicators of water condition using standardized field and lab methods. The surveys include a national quality assurance program and are designed to yield unbiased, statistically-representative estimates of the condition of the whole water resource (such as rivers and streams, lakes, ponds, and reservoirs, wetlands, etc).