LOCATION.-- Lat 42°10'33", long 88°23'36" (NAD of 1927), in SW1/4NW1/4 sec. 26, T.43 S., R.07 E., McHenry County, Hydrologic Unit 07090006, on north side of Algonquin Road, 1.75 miles east of the intersection of Route 47 and Algonquin Road. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: April 1999 to September 2000 (discontinued). | |
STAGE: April 1999 to September 2000. | |
GAGE.-- Water-stage recorder and acoustical velocity meter. Datum of gage is 855.00 ft. above NGVD of 1929. | |
REMARKS.-- Flow regulated by control valve approximately 30 ft upstream from gage. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 12.3 ft3/s, June 17, 1999, gage height, 1.52 ft; maximum gage height, 4.06 ft, June 17, 1999; no flow for many days. | |