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Your Miami-Dade GDO Permit: 8 Must-Knows + Extra Rules

A Grease Discharge Operating Permit (GDO) goes beyond just cleaning dates. From the unique permit number to strict rules against chemical additives, skipping crucial details can cost you time, money, and possibly your business’s reputation. Below are the 8 Must-Knows—plus additional rules—that every food establishment should understand.


infographic: how to read your gdo
Example GDO Permit Breakdown: This visual highlights the key sections of a Grease Discharge Operating Permit (GDO)

The 8 GDO Must-Knows in Miami-Dade


  1. GDO Permit: Keep the official document accessible; it’s your primary reference for all requirements.

  2. Permit Validity Date: Check start and end dates. Renew before it expires to avoid lapses in compliance.

  3. System Type: Whether it’s a grease interceptor, trap, or another device—each has unique maintenance needs.

  4. Number of Systems: If you have multiple devices, manage them separately to avoid confusion.

  5. System Capacity: Usually measured in gallons per minute (GPM). This influences your cleaning schedule.

  6. Cleaning Frequency: The GDO specifies intervals (e.g., every 30 days). Missing them can result in fines.

  7. Reporting Deadline: Many permits require monthly or quarterly submission (e.g., the 20th). Late reports may trigger penalties.

  8. Link to Report: Most GDOs include a URL for uploading cleaning logs and receipts. Know the correct link and file format.


Beyond these essentials, your GDO may list further rules that, if overlooked, can trigger penalties or cause operational downtime. Below is a summary of those additional obligations.


Beyond the 8 Must-Knows


  • No Bypassing the FOG Device: Fats, oils, and grease must pass through the control device.

  • Clean Wash-Down Areas: Mats and equipment must not discharge onto the ground or into storm drains.

  • Prevent Stormwater Inflow: Rainwater must not enter grease lines or septic tanks.

  • No Chemicals or Additives: Using chemicals to break down grease is prohibited.

  • FOG Device Discharge Limits: Discharges must meet local standards and not clog sewers.

  • Device Accessibility: Keep it open for inspections; no blockages are around it.

  • Proper Labeling: Each device must be labeled permanently.

  • Notify Damage in 24 Hrs: Report breaches or damage immediately.

  • Sampling Port: Some permits require a port to test grease after treatment.

  • Yellow Grease Storage: Cooking oil bins must not overflow or leak.


Knowing and following these rules means fewer surprises, better compliance, and a more efficient operation overall. If you’re unsure about any requirements, reach out for a quick review. A bit of attention now saves you big headaches later.


Whether you need help understanding your compliance requirements or ensuring your grease trap maintenance is up to date, we’re here to guide you every step of the way. Call us today—let’s keep your operations running smoothly and fully compliant. We are your trusted partner in FOG management and regulatory compliance.

 
 
 
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