W. Va. Code R. § 64-47-10 - [Effective 7/1/2025] Grease Traps

10.1. There shall be grease traps for all restaurants and similar establishments where a large quantity of grease and fats in liquid wastes will occur.

10.2. The location of the external grease trap shall be within 30 feet from the fixtures served. If meeting this distance requirement is not possible and thus, external grease traps are not possible due to existing conditions or physical limitations, the Commissioner may allow internal grease traps.

10.3. Only those plumbing fixtures into which the grease and fats are discharging shall connect to the grease trap.

10.4. The external grease trap shall be a minimum 150 gallons capacity. Larger grease traps may be a requirement depending upon the loading.

10.5. The external grease trap shall be in an easily accessible place outside the building served.

10.6. Grease traps with manhole covers shall be designed to withstand expected loads and prevent access by children.

10.7. The manhole cover shall be secured by a bolt or locking mechanism and be constructed of round cast iron or similar construction with sufficient weight to prevent unauthorized access.

10.8. The Commissioner may specify either method of limiting access to the manhole, if the method conforms to subsection 10.7 of this section and prevents unauthorized access.

10.9. A hotel or restaurant shall ensure that a grease trap manhole is closed and secured or locked, if applicable, at all times, except when accessed for pumping or maintenance.

Notes

W. Va. Code R. § 64-47-10