Columbia River Dams Data

Notes on searching for water levels and flow rate through the dams on the Columbia River:

Several different sources of data selected from map interface:
http://waterwatch.usgs.gov/new/?m=real&r=or
http://wdr.water.usgs.gov/nwisgmap/
http://www.nwd-wc.usace.army.mil/report/colmap.htm
http://www.cbr.washington.edu/dart/sport_rec/river.html

Grapher for various sites from USGS:
http://or.water.usgs.gov/cgi-bin/grapher/graph_setup.pl?basin_id=tdg&sit...

Nice data visualization, outflow compared to 10 year average:
http://www.cbr.washington.edu/crt/get?Segment=John_Day_Dam&Config=river&...

Table format of discharge rate:
http://or.water.usgs.gov/cgi-bin/grapher/tabler.pl?basin_id=tdg&site_id=...

Quick way to check current discharge from John Day Dam:
http://www.nwd-wc.usace.army.mil/ftppub/project_data/hourly/jda_0daysbac...

Water heights (relative to sensor depth).
Vancouver: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14144700&...
Washougal: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=453439122...
Below Bonneville: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14128870&...
Stevenson: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14128600&...
Below The Dalles: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14105700&...
Above The Dalles: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14105700&...
Below John Day: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=454249120...
Above John Day?: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=454314120...
Below McNary: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14019240&...
Above McNary: http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=14019220&...

Could not find definitions of these terms, my best guess:
spill = water that is spilled over/through the dam that doesn't pass the turbines
outflow = water that goes out of the turbines
discharge = outflow + spill (all water that goes past a dam)
inflow = water that goes into the turbines (not sure why this doesn't match outflow)