Healthy Watersheds Car Wash Kit

The goal of this program is to reduce the water pollution risks associated with car wash fundraising events. As part of the program, the City has made available a free sump pump kit that prevents soap and used wash water from entering the storm sewer system. 

How to reserve a free Watershed-Friendly Car Wash Kit:

Groups interested in hosting a car wash should first make arrangements with the host business to schedule a date and time for the event. They should then contact the City’s Public Works Department (503-635-0270) at least five days prior to the event to reserve the car wash kit. Arrangements will then be made with the Operations Division to provide the catch basin maintenance service to provide a sump of adequate volume to contain the soap and used wash water. The kit can be signed out at the Maintenance and Construction Building at 17601 Pilkington Rd, Lake Oswego Oregon (see map below).

 Why did the City create this free program?

City code prohibits anything but rain water from entering the storm drain system. Most drains and catch basins drain directly to our local streams without treatment and the City is required by federal and state law to prevent pollutants from entering the storm drain system to the maximum extent practicable.

Preventing pollution at the source is the preferred and most effective Best Management Practice when addressing water pollution. The City encourages all fundraising groups to explore alternatives to car wash events, such as selling discounted car wash coupons from local businesses. The Chinook Book is an example of a coupon-based fundraising tool that offers discounts at many local businesses, including commercial car washes. Many local car wash business offer fundraising discounts on pre purchased washes as well.

If a group does decide to host a car wash fundraiser, the free car wash kit provided by the City of Lake Oswego (or similar system) should be used. Voluntary participation in this program helps prevent harmful pollutants from reaching fish and other aquatic organisms, while still allowing groups to host fundraising events.


City of Lake Oswego - Public Works & Operations
17601 Pilkington Rd
Lake Oswego, OR 97035
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