USGS Water-Year Summary 2019
02031000 MECHUMS RIVER NEAR WHITE HALL, VA
LOCATION - Lat 38°06'09", long 78°35'35" referenced to North American Datum of 1927, Albemarle County, VA, Hydrologic Unit 02080204, on right bank 20 ft downstream from bridge on State Highway 614, 1.5 mi downstream from Rocky Run, 4.0 mi southeast of White Hall, and 4.9 mi upstream from confluence with Moormans River.
DRAINAGE AREA - 95.3 mi².
- OFR 2006-1308: Drainage area.
PERIOD OF RECORD - October 1942 to September 1951, October 1979 to current year. Prior to September 1951, published as Mechum River near Ivy.
GAGE - Water-stage recorder. Datum of gage is 429.75 ft NGVD of 1929. Oct. 1, 1942 to Sept. 30, 1951, on right bank 20 ft downstream from former highway bridge, at different datum.
COOPERATION - Records were provided by the Virginia Department of Environmental Quality - Water Division.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Sept. 6, 1979, reached a stage of 24.5 ft, from floodmarks, discharge, about 13,500 ft³/s, from rating curve extended above 8,300 ft³/s.