USGS Water-Year Summary 2019
452359122454500 DURHAM WASTEWATER TREATMENT PLANT AT DURHAM, OR
LOCATION - Lat unavailable, long unavailable, Washington County, OR, Hydrologic Unit 17090010,
PERIOD OF RECORD - PRECIPITATION: May 2001 to October 2014.
INCIDENT LIGHT: May 1991 to current year.
INSTRUMENTATION - PRECIPITATION: Unshielded, standard 8-in diameter, tipping bucket precipitation gage, mounted atop WWTP approximately 4 feet from the roof.
INCEDENT LIGHT: A LI-190SA quantum sensor measuring photosynthetically active radiation (PAR) on a flat surface in the 400 to 700 nanometer (nm) waveband.