Water Quality

In the Atlanta metropolitan area, a hydrologic data-collection network has been established to collect real-time streamflow, precipitation, continuous and discrete water-quality data. The USGS South Atlantic Water Science Center (SAWSC) Urban Hydrology Unit (UHU), located in Norcross, Georgia, has been working in cooperation with local municipal and county agencies in and around the Atlanta...

In 2002, The Nature Conservancy and the U.S. Army Corps of Engineers launched a collaborative effort to find more sustainable ways to manage river infrastructure to maximize benefits for people and nature. As of 2021, the Sustainable Rivers Program study area includes 40 rivers, 89 reservoirs, and 10,953 downstream river miles. The USGS South Atlantic Water Science Center and USGS Wetland and...

The Albemarle-Pamilco Drainage Study Unit (ALBE) is part of the National Water Quality Program (NWQP, formerly National Water Quality Assessment (NAWQA)). NWQP is an ongoing program of the U.S. Geological Survey to provide an understanding of water-quality conditions; whether conditions are getting better or worse over time; and how natural features and human activities affect those conditions.

There is evidence that bridge deck runoff has a relatively high loading of a variety of constituents such as nutrients, solids, pesticides, metals, and polycyclic aromatic hydrocarbons (PAHs). Information on the quality of bridge deck runoff in North Carolina is, however, lacking. Stormwater permits are designed to reduce nonpoint source loadings of anthropogenically derived constituents to...

In North Carolina, excessive nutrient and sediment loadings have contributed to the degradation of surface-water quality across the state as a result of agricultural activities and population growth increases. To further understand the influences of human activities and natural processes on surface-water quality, the U.S. Geological Survey (USGS) developed the SPARROW (SPAtially Referenced...

The US Geological Survey (USGS) has cooperated with the State of Georgia to monitor water quality throughout the State since 1937. The current Statewide Water-quality Montoring Program is a network of 50 stations across Georgia operated in cooperation with the Environmental Protection Division of the Georgia Department of Natural Resources (GAEPD). Over the years, the temporal and spatial design...

Falls Lake has been included in the North Carolina Division of Water Quality’s 303(d) list of “impaired” waters, due to violations of the State chlorophyll-a standard caused by excessive nutrient inputs (North Carolina Department of Environment and Natural Resources, Division of Water Quality, 2010a). The North Carolina Environmental Management Commission has adopted nutrient management strategies...

Floodplain and wetland areas provide critical ecosystem services to local and downstream communities by retaining sediments, nutrients, and floodwaters. The loss of floodplain functionality due to land use conversion and degradation reduces the provisioning of these services. Assessing, quantifying, and valuing floodplain ecosystem services provide a framework to estimate how floodplain systems...

Background: How safe is it to swim, wade, and boat in the Chattahoochee River today? For a highly urbanized river such as the Chattahoochee, much of the answer depends on bacteria levels in the water. This website provides "real time" turbidity data, the estimated Escherichia coli (E coli) bacteria count, the most recent E. coli bacteria counts (sample collected each Thursday), and National Park...

Organic contaminants with designed molecular bioactivity, such as pesticides and pharmaceuticals, originate from human and agricultural sources, occur frequently in surface waters, and threaten the structure and function of aquatic and terrestrial ecosystems. Congaree National Park in South Carolina (USA) is a vulnerable park unit due to its location downstream of multiple urban and agricultural...

The South Atlantic Water Science Center is a participant in the Southeast Stream Quality Assessment (SESQA) which covers the southeastern region of the Regional Stream Quality Assessment (RSQA). The goal of the study is to determine how stream ecology is affected by chemical and physical stressors in small streams? The U.S. Geological Survey (USGS) is addressing this question through studies of...

A critical aspect of the uniqueness of coastal drought is the effects on the salinity dynamics of creeks, rivers, and estuaries. The location of the freshwater–saltwater interface along the coast is an important factor in the ecological and socioeconomic dynamics of coastal communities. Salinity is a critical response variable that integrates hydrologic and coastal dynamics including sea level...