Pre-Treatment Program

CLICK HERE:   Reduce Your Annual Fog Fee 

The Lake Stevens Sewer District is now required by the EPA and the Washington State Department of Ecology to institute a Wastewater Pre-Treatment Program.  All commercial and industrial establishments that discharge water into the District’s collection system are required to participate.  This program is intended to save your business and the District the substantial costs of fixing and cleaning up sewage back-ups, as well as protecting our eco-system for many years to come.

Pre-Treatment Regulations

Phase I of this program is dedicated to the management of Fats Oils and Grease (FOG).  FOG is a major source of pipe blockages and sewage backups.  Examples include kitchen cooking grease, vegetable oils, bacon grease, meat fats, food wastes, gravy, sauces, baked goods, cheeses, butter, dressings, etc.  The cost for emergency maintenance for these backups can have large financial impacts on everyone affected, as well as health and business losses.  One of the primary goals of this program is designed to eliminate discharges of FOG into the sewage collection system, as mandated by our sewer use ordinance, the EPA and the Washington State Department of Ecology.

We will work closely with you to help your business comply with the Lake Stevens Sewer District’s Pre-Treatment regulations and standards, and will be able to give your managers and staff guidance in managing the wastewater discharged from your place of business. 

For questions, please contact us by email at

How to clean a restaurant grease trap video, watch here. 

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Pre-Treatment Forms3 documents

  • Grant Application
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  • Grease Removal System Maintenance Log
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  • FOG Education Instructions
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Best Management Practice4 documents

  • Amalgam Waste Best Management Practices
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  • Grease Trap 101
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  • FOG Control Training Instructions
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  • Local Pumping Companies
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