Public Works

The Sewer Branch is part of the West Linn Public Works Department and works in conjunction with the Stormwater Branch to comprise the Environmental Service Division (ESD).

Objectives of the Sewer branch include:

To operate, maintain, repair and expand the City's sewage collection, pumping and transmission systems within legal and regulatory constraints. This includes 7.5 square miles of city property encompassing 115 miles of Sewer lines with pipe diameters ranging from 6 inches to 24 inches, 7 City Pump Stations and 3 Tri-City Pump Stations.

All of the storm water in the City of West Linn that is collected by curb inlets and catch basins, drains to local streams.

The average annual rainfall in West Linn is 47.060 inches. Approximately 75% of the total precipitation occurs during the 6 months between October and March.

There are approximately 107 miles of storm lines, 2500 catch basins, 105 Pollution Control Manholes, 40 Ponds and 54 underground detention tanks that are maintained by the City's storm water crew each year.

The Stormwater Branch is part of the West Linn Public Works department, and works in conjuction with the Sewer Branch to comprise the Environmental Service Division (ESD).

Objectives of the Stormwater Branch include:

The Storm Drainage Master Plan guides the City's efforts to manage storm water runoff, reduce storm water pollution, and protect/enhance natural habitat areas affected by the drainage system. The most current version was completed in 2019. It replaces the 2006 master plan. Many of the capital improvement projects undertaken by the City are derived from inadequacies pointed out by the surface water management plan.

The City of West Linn is pleased to provide you with this year’s Annual Drinking Water Quality Report. We want to keep you informed about the water and services provided to our customers during the current year. Reports from prior years are also available for review.

It is our goal to provide you with a safe and dependable supply of drinking water. The City of West Linn encourages public interest and participation in our community’s decisions affecting drinking water.

The Environmental Services Division is comprised of the Stormwater and Sanitary Sewer branches, and is part of the West Linn Public Works department.

The goals of the Environmental Services Division are:

To operate, maintain, repair, and expand the City's environmental infrastructure in an economical, efficient, and effective manner to ensure a functional system capable of meeting the needs of the present and future populations.

Remain within NPDES permit requirements, and meet the objectives of the City's master plans.