UPDATE: MAY 24, 2014: The Portland Water Bureau has canceled the boil water order. More details: http://www.portlandoregon.gov/water/index.cfm?c=39678.
A boil water order has been issued for the entire city of Portland.
In three separate repeat water samples from May 20 to May 23, the presence of total coliform and E. coli was confirmed in routine drinking water.
Until further notice, all Portland Water Bureau customers and those in the affected areas should boil all tap water used for drinking, food prep, tooth brushing and ice for at least one minute.
PDF: Map of affected area
Any ice or beverages prepared with unboiled tap water on or after May 20 should be thrown out.