Editing Central Valley Project (section)

=== Trinity River ===
[[File:2013, Drainage Ditch, Friant-Kern Canal, Central Valley Project Irrigation System - panoramio.jpg|thumb|Drainage ditch in Central Valley Project<ref>{{Citation|last=English|first=Chris|title=2013, Drainage Ditch, Friant-Kern Canal, Central Valley Project Irrigation System|date=2013-12-09|url=https://commons.wikimedia.org/wiki/File:2013,_Drainage_Ditch,_Friant-Kern_Canal,_Central_Valley_Project_Irrigation_System_-_panoramio.jpg|access-date=2018-04-20}}</ref>]]
Water diversions from northern rivers in the state remain controversial due to environmental damage. Trinity River Division is the second largest CVP department for the northern Sacramento Valley. The primary purpose of the division is to divert water from the [[Trinity River (California)|Trinity River]] into the Sacramento River drainage downstream of Shasta Dam in order to provide more flow in the Sacramento River and generating [[peaking power]] in the process.<ref name="shastatrinity"/> [[Trinity Dam]] forms [[Trinity Lake]],<ref name="TrinityDam">{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Trinity+Dam |title=Trinity Dam |publisher=U.S. Bureau of Reclamation |work=Trinity River Division |date=2009-06-04 |access-date=2010-01-16 |archive-date=November 12, 2011 |archive-url=https://web.archive.org/web/20111112100241/http://www.usbr.gov/projects/Facility.jsp?fac_Name=Trinity+Dam |url-status=dead }}</ref> the second largest CVP water-storage reservoir, with just over half the capacity of Shasta<ref name="shastatrinity"/> and a generating capacity of 140 MW.<ref>{{cite web|url=http://www.usbr.gov/power/data/sites/trinity/trinity.html|title=Trinity Powerplant |publisher=U.S. Bureau of Reclamation|access-date=2009-04-14 |archive-url = https://web.archive.org/web/20080503230035/http://www.usbr.gov/power/data/sites/trinity/trinity.html |archive-date = May 3, 2008|url-status=dead}}</ref> [[Lewiston Dam (California)|Lewiston Dam]], downstream of Trinity Dam, diverts water into the Clear Creek Tunnel,<ref name="Lewiston">{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Lewiston+Dam |title=Lewiston Dam |publisher=U.S. Bureau of Reclamation |work=Trinity River Division |date=2009-06-04 |access-date=2010-01-16 |archive-date=November 12, 2011 |archive-url=https://web.archive.org/web/20111112093657/http://www.usbr.gov/projects/Facility.jsp?fac_Name=Lewiston+Dam |url-status=dead }}</ref> which travels to empty into a third reservoir, [[Whiskeytown Lake]] on [[Clear Creek (Sacramento River)|Clear Creek]], a tributary of the Sacramento River, generating 154 MW of power in the process.<ref name="shastatrinity"/> Whiskeytown Lake (formed by Clair. A Hill Whiskeytown Dam<ref name="Whiskeytown">{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Whiskeytown+Dam |title=Whiskeytown Dam |publisher=U.S. Bureau of Reclamation |work=Trinity River Division |date=2009-06-04 |access-date=2010-01-16}}</ref>) in turn provides water to the Spring Creek Tunnel, which travels into the lowermost extreme of Spring Creek, a stream that flows into Keswick Reservoir, generating another 180 MW of electricity. From there the water from the Trinity River empties into Keswick Reservoir and the Sacramento River. In 1963, the [[Spring Creek Debris Dam]] was constructed just upstream of the outlet of the Spring Creek Tunnel, to prevent [[acid mine drainage]] from the [[Iron Mountain Mine]] from continuing downstream and contaminating the river.<ref name="SpringCreek">{{cite web |url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Spring+Creek+Debris+Dam |title=Spring Creek Debris Dam |publisher=U.S. Bureau of Reclamation |work=Trinity River Division |date=2009-06-04 |access-date=2010-01-16 |archive-date=June 13, 2011 |archive-url=https://web.archive.org/web/20110613135850/http://www.usbr.gov/projects/Facility.jsp?fac_Name=Spring+Creek+Debris+Dam |url-status=dead }}</ref>