USGS Water-Year Summary 2020
15041200 TAKU RIVER NEAR JUNEAU, AK
LOCATION - Lat 58°32'19", long 133°42'00" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.33, T.38 S., R.71 E., City & Borough of Juneau, AK, Hydrologic Unit 19010304, (Taku River C-6 quad), in Tongass National Forest, on left bank, 1.5 mi upstream from Wright River, and 31 mi northeast of Juneau.
DRAINAGE AREA - 6,500 mi².
- WDR AK-98-1, 1987-1997; WDR AK-00-1 1989-90 (M), 1992-95 (M).
PERIOD OF RECORD - July 1987 to current year.
GAGE - Water-stage recorder. Elevation of gage is 50 ft above sea level, from topographic map.
PERIOD OF RECORD - Specific Conductance, Water Temperature (YSI), pH, Dissolved Oxygen, fDOM, and Turdidity Water Quality record period begins 05/06/2019
INSTRUMENTATION - Q.W. - A YSI EXO2 Sonde multi-parameter monitor measuring Water Temperature, Specific Conductance, Dissolved Oxygen pH and Turbidity. The Sonde readings are checked against a calibrated field Sonde and compared to stream cross-section values at each site visit. After readings are compared, the monitoring sonde is either cleaned, calibrated, and replaced in the stream, or swapped with a newly calibrated Sonde.