USGS Water-Year Summary 2022
04118564 GRAND RIVER AT N PARK ST NE AT GRAND RAPIDS, MI
LOCATION - Lat 43°01'22", long 85°39'39" referenced to North American Datum of 1983, in SE 1/4 NW 1/4 sec.06, T.7 N., R.11 W., Kent County, MI, Hydrologic Unit 04050006, at left bank 20 ft upstream from N. Park St. NE bridge at Grand Rapids.
DRAINAGE AREA - 4,877.36 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 24, 2020 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 601.93 ft above NAVD88.
EXTREMES FOR PERIOD OF RECORD - Maximum gage-height, 9.36 ft, Feb. 24, 2022; minimum gage-height, 3.31 ft, June 17, 18, 2021.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water Years 2020 to current year.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: July 2020 to current year. WATER TEMPERATURE: July 2020 to current year. DISSOLVED OXYGEN: July 2020 to current year. TURBIDITY: July 2020 to current year.
INSTRUMENTATION - Water-quality monitor telemeter, set for 15-minute measurement interval.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 851 microsiemens, Feb. 16, 2022; minimum recorded, 399 microsiemens, June 28, 2021. WATER TEMPERATURE: Maximum recorded, 28.8 °C, June 11, 2021; minimum recorded, -0.2 °C on several days during 2022 winter period. DISSOLVED OXYGEN: Maximum recorded, 16.3 mg/L, Aug. 2, 2022; minimum recorded, 3.0 mg/L, June 8, 2021. TURBIDITY: Maximum recorded, 779 FNU, Feb. 23, 2022; minimum recorded, 0.1 FNU, Sept. 10, 2022.