GENERAL INFORMATION: 503-823-7404
1120 SW Fifth Ave, Suite 600, Portland, OR 97204
Drinking water regulations require systems to provide source water treatment to specifically address Cryptosporidium (a waterborne pathogen). The Portland Water Bureau does not currently treat for Cryptosporidium; the State of Oregon issued Portland a variance for these treatment requirements of LT2 in accordance with federal and state law.
On May 19, 2017, the Oregon Health Authority (OHA) informed the Portland Water Bureau that the treatment variance granted in 2012—which exempted the Water Bureau from having to treat its water for Cryptosporidium—was being revoked. The order revoking the variance also required that the Portland Water Bureau submit to OHA the following:
On August 2, 2017, the Portland City Council unanimously approved water filtration as the Cryptosporidium treatment technology to be used.
On October 9, 2017, the Portland Water Bureau submitted to OHA a proposed schedule for design and construction of a water filtration plant. This proposal also includes interim measures to reduce Cryptosporidium related risk that are at least as protective as the conditions of the Cryptosporidium treatment variance. Among the proposed actions are:
Sent Oct. 9, 2017 to the Oregon Health Authority