USGS Water-Year Summary 2018
02232500 ST. JOHNS RIVER NEAR CHRISTMAS, FL
LOCATION - Lat 28°32'34", long 80°56'37" referenced to North American Datum of 1927, in SW 1/4 sec.29, T.22 S., R.34 E., Orange County, FL, Hydrologic Unit 03080101, on downstream side of bridge on State Highway 50, 0.3 mi upstream from Tootoosahatchee Creek, 2 mi upstream from Lake Cone, 4.5 mi east of Christmas, and 209 mi upstream from mouth.
DRAINAGE AREA - 1,539 mi². includes that of Tootoosahatchee Creek.
PERIOD OF RECORD - October 1933 to current year. Prior to January 1934, monthly discharge only, published in WSP 1304.
GAGE - Water-stage recorder, acoustic velocity meter, and data-collection platform. Datum of gage is 1.62 ft above NGVD of 1929 and 0.39 ft above NAVD of 1988. Prior to July 23, 1934, nonrecording gage at same site and datum.
COOPERATION - This gage is monitored in cooperation with the St. Johns River Water Management District.