Sewer Connection Rules in Portland, Oregon

Environmental Protection Oregon 3 Minutes Read ยท published February 07, 2026 Flag of Oregon

In Portland, Oregon, connecting a private sewer line to the public sewer system requires following city codes and Bureau procedures. Property owners and licensed contractors must confirm the correct public main, obtain any required permits, and meet inspection standards set by the Bureau of Environmental Services (BES) and the Bureau of Development Services (BDS). This guide explains where to connect, who enforces the rules, how to apply for permits, and practical steps to avoid violations and delays.

Where to Connect

Connections are typically made to the public sewer main or a lawful lateral that serves the property; location depends on the existing public main, easements, and property plumbing layout. Check city sewer maps and BES guidance before planning work [1].

Always confirm the public main location before digging.

Required Permits and Approvals

Most sewer connections to the public system require a plumbing or sewer permit issued by BDS and approvals from BES for taps to the public main. Licensed plumbers usually submit permit applications and schedule inspections on behalf of property owners [3].

  • Apply for a plumbing or sewer permit through BDS; a separate BES approval may be required.
  • Confirm public main location using BES sewer maps and utility records [1].
  • Use a licensed plumbing contractor for the physical connection and to pass required inspections.

Standards and Technical Requirements

Connections must meet Portland code standards and BES technical specifications for materials, invert elevations, cleanouts, and backflow prevention. Detailed technical criteria and construction standards are published by BES and enforced at permit inspection [2].

Improper connections can cause property damage and public health risks.

Penalties & Enforcement

Enforcement for unauthorized or noncompliant sewer connections is handled by the Bureau of Environmental Services and the Bureau of Development Services. Remedies include administrative orders, permit revocation, repair orders, and referral to city code enforcement or the courts.

  • Fine amounts: not specified on the cited page [2].
  • Escalation: first, repeat, and continuing offence procedures and specific ranges are not specified on the cited page [2].
  • Non-monetary sanctions: corrective orders, suspension of work, requirement to remove or replace illegal connections, and court action may be used.
  • Enforcer and inspections: BES enforces sewer system protections and coordinates inspections with BDS; report issues through BES contact or report pages [1].
  • Appeals and review: appeal routes are governed by city code and BDS appeal procedures; specific appeal time limits are not specified on the cited pages [2].

Applications & Forms

BDS accepts plumbing and sewer permit applications; BES provides requirements and permit coordination. Specific form names and fee figures are not specified on the cited pages and applicants should consult BDS and BES permitting pages for current forms and fee schedules [3].

Use only licensed professionals for permitted sewer work.

How to Plan a Connection

Follow a clear sequence: confirm sewer main location, obtain approvals, hire licensed installers, and schedule inspections. Coordinate with BES early if your work requires a tap to a public main or affects public infrastructure [1].

FAQ

Do I need a permit to connect my property to the sewer?
Yes. Most connections require a plumbing or sewer permit from BDS and approvals from BES where the work affects the public main.
Where do I tie my private lateral into the public system?
Connections are made to the public sewer main or an existing lawful lateral serving the property; confirm exact location via BES sewer maps and records [1].
Who inspects the work and how do I schedule an inspection?
BDS inspects plumbing work; BES inspects or approves connections affecting the public main. Licensed contractors typically schedule inspections through BDS and coordinate with BES as needed [3].

How-To

  1. Identify the public sewer main or lateral for your property using BES maps and utility records.
  2. Apply for required plumbing and sewer permits with BDS and request any BES approvals for public main taps.
  3. Hire a licensed plumbing contractor to prepare plans and perform the connection to code.
  4. Schedule inspections with BDS and coordinate any required BES field inspections.
  5. Complete corrective work if inspectors identify deficiencies and obtain final sign-off before covering the connection.

Key Takeaways

  • Always confirm the public main location with BES before planning work.
  • Permits from BDS and approvals from BES are commonly required for sewer taps.

Help and Support / Resources

  1. [1] City of Portland Bureau of Environmental Services - Sewer connections and public main guidance.
  2. [2] City of Portland Code, Title 17 (Sewers and related provisions).
  3. [3] City of Portland Bureau of Development Services - Plumbing and sewer permit information.

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