USGS Water-Year Summary 2020
14186110 GREEN PETER DAM TAILWATER NEAR FOSTER, OR
LOCATION - Lat 44°26'57.46", long 122°32'58.80" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.10, T.13 S., R.2 E., Linn County, OR, Hydrologic Unit 17090006, at powerhouse near center of Green Peter Dam on Middle Santiam River, 7.0 mi north of Foster, and at mile 5.35.
DRAINAGE AREA - 273 mi².
PERIOD OF RECORD - October 2013 to current year (gage heights only).
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by U.S. Army Corps of Engineers).
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 710.88 ft Apr. 11, 2019; minimum, 691.58 ft Jan. 2, 2014.