Hydrographic and Impairment Statistics for NPS Wild and Scenic Rivers

Willi K, Back J, Ling J, Tucker D. Hydrographic and Impairment Statistics for NPS Wild and Scenic Rivers. 2019. National Park Service

An inventory that spatially quantifies the surface water hydrography of wild and scenic rivers that the National Park Service manages to determine and track which rivers are or are not meeting water quality standards as outlined by Section 303(d) of the Clean Water Act. Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the Government Performance and Results Act of 1993 (GPRA). One water resources management goal established by the Department of the Interior under GRPA requires NPS to track the percent of its managed surface waters that are meeting Clean Water Act (CWA) water quality standards. This goal requires an accurate inventory that spatially quantifies the surface water hydrography that each bureau manages and a procedure to determine and track which waterbodies are or are not meeting water quality standards as outlined by Section 303(d) of the CWA. This project helps meet this DOI GRPA goal by inventorying and monitoring in a geographic information system for the NPS: (1) CWA 303(d) quality impaired waters and causes; (2) hydrographic statistics based on the United States Geological Survey (USGS) National Hydrography Dataset (NHD); and (3) special designations recognizing waters of exceptional quality as defined in State water quality standards. Hydrographic and 303(d) impairment statistics were evaluated based on a combination of 1:24,000 (NHD) and finer scale data (frequently provided by state GIS layers). Information on State-designated uses and waters of exceptional quality are only available for a limited number of wild and scenic rivers at this time.

Type
Project
Authors
Willi, Kathryn; Back, Jennifer; Ling, Jia; Tucker, Dean
Publisher
National Park Service
Units
AQSY , WBI
Keywords
303(d), 303d, Boundaries, Boundary, Canal, Clean Water Act, CWA, Designated Uses, Ditch, Geoscientificinformation, HIS, Hydrographic and Impairment Statistics, Hydrographic Statistics, Hydrography, Impaired Waters, Impairment, Impairment Statistics, Inland Waters, Inlandwaters, LAKE, Marsh, National Hydrography Dataset, NHD, Ocean, Oceans, Pond, Regulatory, Reservoir, Resource Management, River, Scenice, Sea, Seep, Shoreline, Spring, Statistics, Stream, Swamp, TMDL, Total Maximum Daily Load, VAMA, Vanderbilt Mansion National Historic Site, Water, Waterfall, Wetlands, Wild, Wild and Scenic River, WSR

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