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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
01654107 LONG BRANCH AT OLLEY LANE NR FAIRFAX, VA
LOCATION - Lat 38°49'28.56", long 77°16'00.12" referenced to North American Datum of 1983, Fairfax County, VA, Hydrologic Unit 02070010,
DRAINAGE AREA -
SURFACE-WATER RECORDS
PERIOD OF RECORD - September 2021 to current year.
GAGE - Water-stage recorder. Datum of gage is 293.6 ft +/- 0.12 ft, NAVD88
EXTREMES FOR PERIOD OF RECORD -
Maximum gage height, 5.46 ft, June 22, 2022; minimum gage height, 2.10 ft, September 2, 2022
Water Quality:
Water Temperature: Maximum: 27.09 °C on 08/08/2022, Minimum: 0.29 °C on 01/30/2022
Specific Conductance: Maximum: 3959 uS/cm on 01/08/2022, Minimum 10 uS/cm on 5/07/2022
Dissolved Oxygen: Maximum 14.2 mg/l on 2/15/2022, Minimum 5.4 mg/l on 8/10/2022
pH: Maximum: 7.6 pH units on 12/17/2021, Minimum 6.2 pH units on 5/7/2022
Turbidity: Maximum 1137 FNU on 6/22/2022, Minimum 0.19 FNU on 01/09/2022
