USGS Water-Year Summary 2023
420425122361700 HIGHWAY RUNOFF SITE NR I5 AND OLD HWY 99
LOCATION - Lat 42°04'24.9", long 122°36'16.8" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 sec.20, T.40 S., R.2 E., Jackson County, OR, Hydrologic Unit 17100308, on the right bank, 230 ft north of Old Hwy 99, 240 ft east of Interstate 5, and 0.1 miles west of Siskiyou.
DRAINAGE AREA - 0.30 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 2017 to March 2019 (discontinued).
GAGE - Water-stage recorder, crest-stage gage, and concrete control. Elevation of gage is 3964 ft above NAVD of 1988, determined from digital elevation model.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1.96 ft³/s June 20, 2018, gage height 3.56 ft; minimum discharge, no flow at times.
WATER-QUALITY RECORDS
PERIOD OF RECORD - SPECIFIC CONDUCTANCE: November 2017 to April 2019 (discontinued).
EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum, 34,800 microsiemens Feb. 28, 2018; minimum, 59 microsiemens June 20, 2018.