NW Biofuel

Oregon requires grease traps to be cleaned at minimum Every 90 days. However, high-volume restaurants in Portland may need more frequent service. The industry standard 25% rule applies: schedule a cleaning before fats, oils, and grease (FOG) reach 25% of your trap's capacity. Regular maintenance prevents costly backups, foul odors, and health code violations.

In Oregon, grease trap maintenance is regulated by Oregon DEQ / Local sewer utility. Commercial kitchens must clean traps at least Every 90 days. A licensed hauler must transport the waste and provide a signed manifest. Businesses must retain cleaning records for at least 3 years. Non-compliance can result in fines up to $10,000 per violation per day, plus potential business closure.

Grease trap cleaning in Portland typically costs $125 to $475 for small to medium traps (under 500 gallons), and $400 to $1,200 for large interceptors (500+ gallons). Pricing depends on trap size, accessibility, condition, and how frequently you schedule service. Most Portland companies offer free estimates, so get multiple quotes to compare.