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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Room 1000, Portland, OR 97204

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Proposed Rule Changes for CIPP Lining in the Public Right of Way

CIPP liner is prepared The City of Portland's Bureau of Environmental Services (BES) is proposing permanent administrative rules governing the use of cured-in-place pipe (CIPP) lining technology to repair privately owned and/or privately maintained sewer lines and laterals within the public right of way in the City of Portland. CIPP lining technology is a pipe rehabilitation method that involves inserting a flexible liner into the existing failing pipe and curing the liner with either water or steam. The result is a rigid, smooth surface that seals cracks and restores the old pipe to near-new condition. The chief advantage of using CIPP lining technology is its “trench-less” nature. CIPP lining allows installers to reduce and sometimes avoid the need to excavate and replace sidewalks, curbs, trees, utilities, and other features, making CIPP less disruptive to the community and more sustainable than traditional open-trench methods.

The proposed permanent rules will replace temporary rules currently in effect. Those temporary rules, adopted in late 2014 and currently found in ENB-4.33, authorized a pilot program that allowed CIPP technology to be used by qualified contractors working for private property owners to repair privately owned or maintained sewer lines and laterals in the public right of way. Through the present rulemaking, BES primarily aims to provide the public with greater clarity on program implementation and requirements. BES proposes no significant substantive changes to the requirements for using CIPP lining in the public right of way, but BES does propose provisions not included in the temporary rules that will help ensure compliance with the substantive requirements of the rules.

The proposed rules and a fact sheet with more details are available for download and review at the links below. Public comments will be accepted from 8:00 a.m. on May 2 through 5:00 p.m. on June 1, 2017. Please submit written comments by email to Rachele Altman at

No request for a hearing was made by the publicized deadline to request a hearing, so the City has cancelled the proposed hearing that had been tentatively scheduled for Tuesday, May 23, 2017.

Please send comments, concerns, or questions to Rachele Altman at or call 503-823-7767.

Comments must be received by 5:00 p.m. June 1, 2017.