Self-cleaning by the owner and/or operator of an establishment is not allowed unless approved by the sanitary sewer system owner.
Only hydromechanical grease interceptors (HGIs) with a liquid volume of 25 GPM (50 pounds) or less may be considered for self-cleaning unless otherwise approved by the sanitary sewer system owner.
When approved, the owner and/or operator of an establishment shall comply with the following requirements for maintenance as required by the sanitary sewer system owner:
• Remove cover(s)
• Remove all fats, oils, and grease (FOG), solids, food debris, and wastewater
• Clean all internal surfaces from the build-up of FOG or other residual materials (chemicals and/or degreasers are prohibited)
• Place all removed materials in garbage bag or other sealable container (not glass) along with an absorbent material, i.e. like kitty litter or auto oil absorbent, and dispose of solidified contents in trash receptacle
• Inspect all internal components, replace anything missing or broken and ensure flow control device is installed
• Refill with fresh water
• Replace cover(s) • Enter the required information on the maintenance log
At least once per quarter or as required by the sanitary sewer system owner, the HGI shall be cleaned by a professional grease hauler, certified through the HR FOG Program administered by the Hampton Roads Planning District Commission, documented by a manifest, reported in the maintenance log, and all records maintained for the previous three (3) years.