USGS Water-Year Summary 2021
02301990 HILLSBOROUGH RIVER ABOVE CRYSTAL SPRINGS NEAR ZEPHYRHILLS, FL.
LOCATION - Lat 28°11'08", long 82°11'03" referenced to North American Datum of 1983, in NW 1/4 sec.35, T.26 S., R.21 E., Pasco County, FL, Hydrologic Unit 03100205, near center span, on downstream side of bridge on former State Highway 23, 0.2 mi upstream from Crystal Springs, 1.5 mi west of village of Crystal Springs, and 3.0 mi south of Zephyrhills.
DRAINAGE AREA - 82 mi².
- WRD FL-98-3A: 1997 (M and daily).
PERIOD OF RECORD - July 1941 to August 1964 (fragmentary); September 1964 to September 1983 (gage heights only), incomplete; October 1983 to current year. Records of gage heights prior to October 1963 are available in files of the Geological Survey.
GAGE - Water-stage recorder. Datum of gage is National Geodetic Vertical Datum of 1929 and 0.95 ft. below North American Vertical Datum of 1988. Prior to Sept. 12, 1941, nonrecording gage (reference point) at same site at datum 63.30 ft higher; Sept. 12, 1941, to May 14, 1964, nonrecording gage at same site at datum 50.97 ft higher; May 14, 1964, to June 1, 1994, water-stage recorder at same site at present datum.
COOPERATION - This gage is monitored in cooperation with the Southwest Florida Water Management District and Pasco County.
PERIOD OF RECORD - Water years 1960, 1966 to September 2011 (discontinued).