Industrial Pretreatment

Most of the pollutants found in domestic and industrial wastewater can be removed by the Everett Water Pollution Control Facility. However, some businesses produce wastes that cannot be completely removed by the city’s treatment process. These businesses are required to “pre-treat” their wastewater to remove these contaminants before they send the water on to the Water Pollution Control Facility.

The Program Begins
In 1987, the Everett Industrial Pretreatment (IPT) Program was started to help companies find ways to remove pollutants from their own wastewater. The IPT program monitors industries to help keep pollutants such as acids, solvents, and heavy metals from entering the city’s sanitary sewer lines.
Fats, Oils & Grease (FOG)
IPT also inspects restaurants and other food services to help them reduce fats, oils, and grease (FOG) from kitchen drains. FOG allowed down drains is the most common cause of sanitary and combined sewer overflows. Buildups increase maintenance costs for both businesses and the city. The best way to control FOG is by removing fats, oils, and grease before washing dishes. View the complete brochure and review the FOG best management practices (PDF) in English, Spanish, and Korean. To receive the brochure in other languages, contact IPT at 425-257-8240.

Clogged Drains
Also read the brochure What's Clogging My Drain (PDF).
Fight FOG