10 FLORIDA GEOLOGICAL SURVEY TABLE 1. (Continued) Grid co- Station ordinate No. on No. on fir- 5 fig. 2 40 821-207 41 822-211 824-209 826-209 826-201 827-203 821-202 S 828-208 828-209 42 828-210 829-154 829-158 829-200 Location (in downstream order) Withlacoochee R'ver near Dade City Pasco Packing Co. canal at Dade City Hamilton Lake Outlet near Dade City Withlacoochee River near Lacoochee Gator Hole Slough near Bay Lake Gator Hole Slough near Clay Sink Swamp near Cumpressco Weaver Hole Slough at Lacoochee Withlacoochee River at Lacoochee Withlacoochee River at Trilby Bay Lake near Bay Lake Bayroot Slough near Bay Lake Little Withlacoochee River near Clay Sink 43 834-209 Little Withlacoochee River at Rerdell 44 835-213 Withlacoochee River at Croom Drainage area sq. mi. 390 Type and frequency of record Dd.Dp (29) A(12) Dp(48) A(5) D (2), A(1) D(2), A(4) A(1) A(1) A(1) A(1) A(1) Dr A(9) A(1) A(1) A(2) Dr A(9) Dr A(8) Period of record 1930-33; 1958-62 1958-61 1957-62 1959-61 1961 1959-61 1959 1959 1959 1959 1959 1928-29; February 1930 to June 1962 1959-61 1959 1959 1959 July 1958 to June 1962 1959-61 October 1939 to June 1962 1959-61 well-numbering system shown in figure and stage at 24 sites and of stage of 20 near the area of investigation. 3. Records of streamflow lakes were collected in or Information on the quality of surface water was obtained during high, intermediate, and low flows to determine the general chemical characteristics and the extremes in quality characteristics during the period of study. These data were supplemented with a series of reconnaissances over the entire area generally within a period of