Bathymetry and capacity of Chambers Lake, Chester County, Pennsylvania

Abstract

Shaded relief-Shows depth to bottom of lake at time of bathymetric survey, in feet below water surface. Mean water surface during period was 579.2 feet above North American Vertical Datum 1988 (NAVD 88), normal pool elevation Water surface (shoreline)-Shows approximate elevation of water surface, September 8-12, 2014. Mean water-surface elevation during period was 579.2 feet above NAVD 88, from PAMAP lidar (PAMAP, 2008) Bathymetric index contour-Shows elevation of the lake bottom. Contour interval 10 feet. Elevations referenced to NAVD 88 Intermediate bathymetric contour-Shows elevation of the lake bottom. Contour interval 2 feet. Elevations referenced to NAVD 88. Contours tested 2.02 feet vertical accuracy at 95-percent confidence level Riser-Shows approximate location of concrete riser near dam. Elevation 583.6 feet above NAVD 88 U.S. Geological Survey reference mark and identifier U.S. Geological Survey gaging station and identifier 570 572