What are the grease trap requirements in San Marcos, TX?

Food service establishments in San Marcos must install and maintain grease traps or interceptors per local FOG ordinances. The city follows the Uniform Plumbing Code (UPC).

What size grease trap do I need for my restaurant in San Marcos?

Grease trap sizing depends on your establishment's flow rate, number of fixtures, and local code requirements. Sizes referenced in local code: 50 gallons. Use our free sizing calculator for a recommendation.

Grease Trap Requirements
San Marcos, TX

FOG compliance regulations for food service establishments in San Marcos, Texas.

Every 90 days (quarterly)

Pumping Freq.

Check locally

Permit

Check locally

25% Rule

UPC

Code Base

Pumping Requirements

Frequency Every 90 days (quarterly)

25% Rule Check locally

Permits & Enforcement

Permit Required Contact authority

Complete FOG Regulations

Minimum Trap Size	Sizes referenced in local code: 50 gallons
Pumping Frequency	Every 90 days (quarterly)
25% Rule	Check with local authority
Permit Required	Contact authority
Inspections	inspected at least once every
Record Keeping	Required — maintain pumping logs and manifests on-site
Plumbing Code	Uniform Plumbing Code (UPC)
Ordinance Ref.	section 502; Sec. 86.134; Sec. 86.133; section 502

Additional Notes

Automatic Grease Removal Units (AGRU) mentioned as option. Inspections: inspected at least once every

Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.