USGS Water-Year Summary 2017
02235000 WEKIVA RIVER NEAR SANFORD, FL
LOCATION - Lat 28°48'54", long 81°25'10" referenced to North American Datum of 1927, in SE 1/4 sec.21, T.19 S., R.29 E., Seminole County, FL, Hydrologic Unit 03080101, near center of bridge at downstream side of bridge on State Highway 46, 4.5 mi downstream from Little Wekiva River, 6.7 mi upstream from mouth, and 8.9 mi west of Sanford.
DRAINAGE AREA - 189 mi².
PERIOD OF RECORD - October 1931 to September 1935 (discharge measurements only), October 1935 to current year.
GAGE - Water-stage recorder and data-collection platform. Datum of gage is 4.96 ft above NGVD of 1929 and 3.99 ft above NAVD of 1988. Prior to Jan. 19, 1960, nonrecording gage at same site and datum.
COOPERATION - This gage is monitored in cooperation with the St. Johns River Water Management District.