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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.
- 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.
USGS Water-Year Summary 2025
11405100 Philbrook Reservoir near Butte Meadows, CA
LOCATION - Lat 40°01'47", long 121°28'30" referenced to North American Datum of 1927, Butte County, CA, Hydrologic Unit 18020121, Lassen National Forest, in center of left earthfill dam on Philbrook Creek 5.4 mi southeast of Butte Meadows. Staff gage is sloping 6x6 timber near center of left earthfill dam.
DRAINAGE AREA - 5.05 mi².
SURFACE-WATER RECORDS
GAGE - Water-stage recorder. Contents based on capacity table dated 1926, provided by Pacific Gas & Electric Co.
COOPERATION - Records were collected by Pacific Gas and Electric Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 803.
REMARKS - Records not computed for winter months. Contents based on Capacity Table 2, dated 1926.
