USGS Water-Year Summary 2019
07147070 WHITEWATER RIVER AT TOWANDA, KS
LOCATION - Lat 37°47'46", long 97°00'51" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 SE 1/4 sec.08, T.26 S., R.4 E., Butler County, KS, Hydrologic Unit 11030017, on right bank at downstream side of bridge on Kansas Highway 254, 0.5 mi west of Towanda, 2.4 mi downstream from West Branch, and at mile 17.5.
DRAINAGE AREA - 426 mi².
PERIOD OF RECORD - Annual maximum, water years 1960-61. October 1961 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,231.47 ft above NGVD of 1929 (levels by Kansas State Highway Commission). Prior to Oct. 1, 1961, crest-stage gage at same site at datum 5.22 ft higher.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of April 1944 reached a stage of 28.6 ft from floodmark.