Source Controls

Some sites could generate pollutants that stormwater quality measures would not address. They have characteristics and uses involving oil and grease, toxic hydrocarbons, heavy metals, toxic compounds, solvents, abnormal pH levels, nutrients, organics, bacteria, chemicals or suspended solids. This chapter presents source controls for managing such pollutants at their source.

Industrial facilities may be subject to additional requirements through State of Oregon NPDES permits or as outlined in Oregon Administrative Rules (OAR) 340 Division 041. The Municipal Code has lists of prohibited discharges to the City’s storm sewer system.

The requirements and implementation of this chapter is in addition to applicable water-quality and flow-control requirements.

Applicants may propose alternatives to the source controls identified in this chapter, with an additional review process.

Site Uses and Characteristics That Trigger Source Controls

Projects with the following site uses and characteristics are subject to the design methodologies of this chapter:

  • Fuel dispensing facilities and surrounding traffic areas
  • Above-ground storage of liquid materials
  • Solid-waste storage areas, containers and trash compactors
  • Outdoor storage of bulk materials
  • Equipment and/or vehicle washing facilities
  • Stormwater and groundwater management for development on land with suspected or known contamination

Applicants are required to address all the site characteristics and uses listed in this chapter. For example, if a development includes both a fuel dispensing area and a vehicle washing facility, the source controls in both sections will apply.

Refer to Chapter 6 for further requirements