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The City of Portland, Oregon

Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Ave, Suite 613, Portland, OR 97204

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Advisory: Sewage release from city manhole on SE 134th Drive

Sanitary Sewage Release Advisory (this is not a Combined Sewer Overflow [CSO] Advisory)

(August 24) – Sewage overflowed from a city manhole located in the backyard of a property on the 8400 block of SE 134th Drive on August 23. Sewage overflowed to a neighboring property and behind the property onto SE Deardorf Road. The cause of the release is being investigated. 

The sewage release entered the City storm drainage system but does not appear to have impacted surface waters. 

The volume of the release is estimated at approximately 3,000 gallons. The release began around 9 a.m. on August 23. Crews stopped the release at about 8 p.m. and began cleanup. 

The City placed caution signs along Deardorf Road and at the impacted property on SE 134th

The public should obey the warning signs in the area.

This sewage overflow is not related to the City of Portland's combined sewer overflow control system, which prevents overflows of stormwater and sewage to the Willamette River and Columbia Slough during rainy periods.

The Bureau of Environmental Services provides city residents with programs to protect water quality and public health, including wastewater collection and treatment, sewer construction and maintenance, stormwater management, and stream and watershed restoration. and @BESPortland.

Media Contact: Taffy Spencer (503) 823-8601,