Editing Corvallis, Oregon (section)

===Utilities===
====Water====
The city's water system has two water treatment plants, nine processed water reservoirs, one raw water reservoir, and some {{convert|210|mi|km}} of pipe. The system can process up to about {{convert|19|e6USgal|m3}} of water per day.<ref name="wateroverview">{{cite web|url= http://www.ci.corvallis.or.us/index.php?option=com_content&task=view&id=398&Itemid=353| title = Water Utility| publisher = City of Corvallis Public Works| access-date = 2009-01-26| archive-url= https://web.archive.org/web/20070808150446/http://www.ci.corvallis.or.us/index.php?option=com_content&task=view&id=398&Itemid=353| archive-date = 2007-08-08| url-status = dead}}</ref>

The Rock Creek treatment plant processes water from sources in the {{convert|10000|acre|km2|adj=on}} Rock Creek Municipal Watershed near Marys Peak. The three sources are surface streams, which are all tributaries of the Marys River. Rock Creek has a processing capacity of {{convert|7|e6USgal|m3}} of water per day (gpd), though operational characteristics of the {{convert|9|mi|km|adj=on}}, {{convert|20|in|cm|adj=on}} pipeline to the city limits capacity to half that.<ref name="waterdetail">{{cite web| url = http://www.ci.corvallis.or.us/index.php?option=content&task=view&id=431&Itemid=364| title = Water Treatment Facilities| publisher = City of Corvallis Public Works| access-date = 2009-01-26| archive-date = August 12, 2007| archive-url = https://web.archive.org/web/20070812230254/http://www.ci.corvallis.or.us/index.php?option=content&task=view&id=431&Itemid=364| url-status = live}}</ref>  The Rock Creek Plant output remains steady year round at about {{convert|3|e6USgal|m3}}.<ref name="wateroverview"/>

The H.D. Taylor treatment plant obtains water from the Willamette River, and has been expanded at least four times since it was first constructed in 1949. Its output varies seasonally according to demand, producing from {{convert|2|to|16|e6USgal|m3}} per day,<ref name="wateroverview"/> though it has a capacity of {{convert|21|e6USgal|m3}} per day.<ref name="waterdetail"/>

The total reservoir capacity is {{convert|21|e6USgal|m3}},<ref>{{cite web| url = http://www.ci.corvallis.or.us/index.php?option=content&task=view&id=400&Itemid=355| title = Water Distribution| publisher = City of Corvallis Public Works| access-date = 2009-01-26| archive-date = August 8, 2007| archive-url = https://web.archive.org/web/20070808204921/http://www.ci.corvallis.or.us/index.php?option=content&task=view&id=400&Itemid=355| url-status = live}}</ref> though measures to voluntarily reduce water usage begin when reservoir levels fall below 90% of capacity, and become mandatory at 80% or below.<ref>{{cite web|url= http://www.ci.corvallis.or.us/index.php?option=com_content&task=view&id=842&Itemid=2942| title = Water Supply Emergency Curtailment Plan| publisher = City of Corvallis Public Works| access-date = 2009-01-26| archive-url= https://web.archive.org/web/20070812211809/http://www.ci.corvallis.or.us/index.php?option=com_content&task=view&id=842&Itemid=2942| archive-date = 2007-08-12| url-status = dead}}</ref>  As part of its ongoing water-conservation program, the water department jointly publishes a guide to water-efficient garden plants.<ref>{{cite web|url = http://www.ci.corvallis.or.us/downloads/pw/PGPlantGuide.pdf| title = Water Efficient Plants for the Willamette Valley| date = c. 2004| publisher = City of Corvallis Public Works| access-date = 2009-01-26| archive-url = https://web.archive.org/web/20090320140549/http://www.ci.corvallis.or.us/downloads/pw/PGPlantGuide.pdf| archive-date = 2009-03-20| url-status = dead}}</ref>
<!-- can't find a cite for this:
* Average Use
{{convert|66|USgal|L}}/day is average use per person
Population: 53,900
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====Green power====
According to the federal Environmental Protection Agency report on its "green power communities", Corvallis is among the top cities in the nation in terms of buying electricity produced from renewable resources. Corvallis purchases more than 126 million kilowatt-hours of green power annually, which amounts to 21% of the city's total purchased electricity.<ref name="Corvallis Gazette Times">{{cite news|url=http://www.gazettetimes.com/articles/2009/01/31/news/community/5aaa02_green.txt|title=Corvallis Tops Green Cities List|last=Neznanski|first=Matt|date=2009-01-31|access-date=2009-02-03}}</ref><ref>{{cite web|url=http://www.epa.gov/greenpower/communities/gpcrankings.htm|title=Green Power Community Challenge Rankings|author=Green Power Partnership|publisher=[[United States Environmental Protection Agency]]|date=2012-03-26|access-date=2012-05-04|archive-date=November 11, 2010|archive-url=https://web.archive.org/web/20101111151951/http://www.epa.gov/greenpower/communities/gpcrankings.htm|url-status=live}}</ref>