Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins

Water-Year Summary for Site 11162619

Click to hide Water-Year Summary instructions and information
  • 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.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

Print this page
USGS Water-Year Summary 2023
11162619 Pilarcitos Creek above Stone Dam near Hillsborough, CA
LOCATION - Lat 37°31'41.3", long 122°24'00.3" referenced to North American Datum of 1983, San Mateo County, CA, Hydrologic Unit 18050006, on left bank, 0.15 mi upstream of Stone Dam Reservoir, and 3.4 mi southwest of Hillsborough.
DRAINAGE AREA - 6.30 mi².  
PERIOD OF RECORD - March 2022 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 524 ft above NAVD of 1988.
REMARKS - Flow regulated by storage in Pilarcitos Lake, 2.0 mi upstream, capacity, 2,900 acre-ft.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 357 ft³/s, Dec. 31, 2022, gage height, 4.99 ft.  Minimum daily discharge, 1.93 ft³/s, Nov. 14, 2022.  No peaks occurred outside period of published record during the 2022 Water Year.