USGS Water-Year Summary 2024
15407500 HARRISON CREEK NEAR CENTRAL, AK
LOCATION - Lat 65°22'45", long 144°49'58" referenced to North American Datum of 1927, in NE 1/4 sec.03, T.6 N., R.14 E., Yukon-Koyukuk Division, AK, Hydrologic Unit 19080401, (Circle B-2 quad) 14.9 mi southeast of Mastodon Dome, and 13.3 mi south of Central.
DRAINAGE AREA - 71.6 mi². Tributary to: Birch Creek.
SURFACE-WATER RECORDS
PERIOD OF RECORD - 2002-05 (annual maximum only). June 2023 to September 2024 (seasonal record only).
GAGE - Water-stage recorder. Datum of gage is 1370.23 ft NAVD88.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1320 cfs, gage height, 47.1 ft, July 27, 2003
WATER-QUALITY RECORDS
PERIOD OF RECORD - 2003 to 2005 (discrete samples collected). June 2023 to September 2024 (seasonal records only).
INSTRUMENTATION - Q.W. - A multi-parameter sonde measuring Water Temperature, Specific Conductance, pH, and Turbidity. Sonde readings are checked against a calibrated field Sonde 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.
EXTREMES FOR PERIOD OF RECORD -
WATER TEMPERATURE: Maximum, 19.7°C , Jul. 25, 2024; Minimum, 0.0°C , Sept. 29 and 30, 2023.
SPECIFIC CONDUCTANCE: Maximum, 256 µS/cm, Aug. 11, 2023; Minimum, 116 µS/cm, July 15, 2024.
TURBIDITY: Maximum, 182 FNU, Sept. 18, 2023; Minimum, 0.1 FNU, Jul. 24, 2023.
pH: Maximum, 8.0 July 25 & 26, 2024; Minimum, 7.4 June 15, 2024.