Maryland FOG & Grease Trap Rules

Baltimore City

• Maintain a valid wastewater-discharge permit and a properly sized, installed, and functioning grease-control device.
• Keep grease below the 25% rule, maintain an onsite log, and retain manifests and records for three years. Use covered, leakproof receptacles and licensed haulers.
• Baltimore Department of Public Works conducts inspections and uses notices of violation and other enforcement actions.

Sources

• MD1 — Baltimore DPW annual O&M report
• MD2 — Baltimore plumbing code

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