Grease Trap/Interceptor Permit in San Antonio, Texas (2026)
Your restaurant cannot legally discharge wastewater into San Antonio's sewer system without a Grease Trap/Interceptor Permit from the San Antonio Water System (SAWS), also called a Food Service Establishment Grease Control Permit. This is a mandatory operational permit that ensures your commercial kitchen complies with local sewer ordinances. Key facts:
- 23 fields — ApronPrep auto-fills 19
- $0–$0 government filing fees (per current SAWS fee schedule)
- Varies processing timeline (typically within 180 days from ordinance effective date for new installations)
Analyzed from Grease Trap/Interceptor Permit
83% from one compliance interview
Manual entry or document upload required
Why You Need a Grease Trap/Interceptor Permit
The Grease Trap/Interceptor Permit is a mandatory requirement for any food service establishment in San Antonio to legally discharge wastewater into the municipal sewer system. It is governed by the San Antonio Municipal Code, Chapter 34 – Utilities, specifically sections related to pretreatment standards and sewer use. Under this ordinance, administered by the San Antonio Water System (SAWS), any business generating fats, oils, and grease (FOG) must install, maintain, and permit an interceptor to prevent FOG from entering public sewers, which can cause blockages, overflows, and damage to the city's wastewater infrastructure. The core legal mandate is to comply with SAWS Grease Control Program Regulations, designed to meet federal Clean Water Act and state environmental quality standards.
Operating without a valid permit or with a non-compliant grease interceptor carries significant, enforceable consequences. SAWS conducts regular inspections and monitors discharge reports. Common penalties include:
- Fines: Violations can result in escalating monetary penalties, which often start at several hundred dollars per occurrence and can increase for repeat offenses or significant non-compliance. Administrative penalties are assessed per the San Antonio Municipal Code.
- Service Disruption: SAWS can issue a Cease and Desist order and, in severe cases, physically disconnect the property's water service until the violation is corrected, halting all business operations.
- Required Remediation: The business owner becomes liable for all costs associated with cleaning a sewer line blockage attributable to the establishment, as well as the cost to repair or replace a failed interceptor.
- Lease and Insurance Risk: A service disconnection or enforcement action can constitute a breach of a commercial lease requiring continuous operation. It may also violate the conditions of property or business liability insurance policies, potentially voiding coverage for related incidents.
Legal code: San Antonio Municipal Code, Chapter 34 – Utilities; SAWS Grease Control Program Regulations
Recent update: In 2025, SAWS introduced enhanced digital reporting requirements for high-volume food service establishments, requiring quarterly electronic submission of waste hauler manifests and interceptor maintenance logs.
Who Needs a Grease Trap/Interceptor Permit?
| Type | Required | Notes |
|---|---|---|
| Restaurant (Full-Service) | Required | Required under City of San Antonio Ordinance § 34-616 and SAWS rules for facilities with food preparation, dishwashing, and floor drains. |
| Bar / Nightclub | Required | Required if food is prepared on-site or if kitchen facilities are present and generate fats, oils, or grease (FOG) wastewater. |
| Food Truck | Required | Required; must obtain a Mobile Food Unit Grease Interceptor permit per SAWS regulations if the unit has a sink or any grease-producing equipment. |
| Coffee Shop / Café | Required | Required if the shop has a kitchen, food prep sink, dishwasher, or any equipment that discharges FOG into the sanitary sewer. |
See which restaurant types need this requirement — and which don't.
See Full Requirements →Field-by-Field Guide (23 Fields)
19 of 23 auto-filledBusiness Legal Name
textEnter your business's exact legal name as registered with the Texas Secretary of State or your DBA filing.
COMMON MISTAKE: Using a nickname, marketing slogan, or abbreviating 'LLC' incorrectly, which delays verification.
Business Classification
textEnter the legal structure of your business, such as LLC, Corporation, Sole Proprietorship, or Partnership.
COMMON MISTAKE: Leaving blank or writing 'restaurant'; the city requires the formal legal entity type.
Operation Type and Scale
textDescribe your food service operation and its scale (e.g., 'Full-service restaurant seating 80, with daily lunch and dinner service').
COMMON MISTAKE: Too vague (e.g., 'cooks food'); insufficient detail leads to capacity miscalculations for interceptor sizing.
Facility Address
textEnter the complete street address of the restaurant facility where the grease interceptor is or will be installed.
COMMON MISTAKE: Entering a P.O. Box, mailing address, or corporate office address instead of the physical kitchen location.
Within SA City Limits or ETJ
textConfirm if your facility address is within San Antonio city limits or its Extra-Territorial Jurisdiction (ETJ).
COMMON MISTAKE: Incorrectly selecting 'Yes' for an address outside the jurisdiction, which voids the application.
Grease Interceptor Currently Installed
textState 'Yes' or 'No' to indicate if a grease interceptor is already installed at the facility.
COMMON MISTAKE: Leaving blank or entering 'In progress'; the city requires a definitive answer to determine permit type.
Interceptor Type
textIf an interceptor exists, specify its type (e.g., 'Grease Trap', 'Grease Interceptor', 'Automatic Grease Recovery Unit').
COMMON MISTAKE: Using generic terms like 'grease thing'; the city requires specific terminology from its plumbing code.
Interceptor Capacity (gallons)
textEnter the total liquid capacity of the installed or planned grease interceptor in gallons.
COMMON MISTAKE: Guessing or using manufacturer model numbers instead of the verified gallon capacity, leading to non-compliance.
Installation Date
textIf an interceptor is installed, provide the date of installation in MM/DD/YYYY format.
COMMON MISTAKE: Entering a future date, an incomplete date, or leaving blank when 'Yes' was selected for existing interceptor.
Current Wetted Height (%)
textIf applicable, report the current fill level of the interceptor as a percentage (e.g., '25%').
COMMON MISTAKE: Exceeding 25% without indicating a pump-out is scheduled, which is a violation of city maintenance rules.
ApronPrep auto-fills 19 of 23 fields from a single compliance interview — no re-typing, no guessing what the government expects.
Top 5 Grease Trap/Interceptor Permit Mistakes
1. Incorrect Grease Trap Size or Flow Rate Calculation
Entering the trap size without performing the required flow rate calculation per San Antonio Ordinance § 34-603 leads to immediate rejection. The required size is based on fixture unit counts and drain flow, not a guess. For example, listing a 20-gpm trap for a kitchen with three-compartment sinks, a dishwasher, and a floor drain typically requires a 50-gpm unit. An undersized application adds 2–3 weeks for resubmission and a possible violation notice.
2. Missing or Invalid Contractor/Plumber License Information
Omitting the State of Texas Plumbing License number for the installing contractor or providing an expired number is a top rejection reason. The San Antonio Development Services Department (DSD) verifies this against state records before issuing the installation permit. For example, entering 'TBD' or a handyman's name instead of a valid 'TACLB' number halts the process. This mistake typically adds 5–7 business days to your timeline while you secure the correct documentation.
3. Submitting an Unapproved Manufacturer's Cut Sheet
Attaching a generic product brochure instead of the specific, manufacturer-approved cut sheet for the exact model being installed causes delays. The DSD requires cut sheets that explicitly list the flow rate (GPM), dimensions, and compliance with ASME A112.14.3 or PDI G101 standards. Submitting a sheet for a 'similar' 50-gpm model when applying for a different brand's 50-gpm unit often results in a correction notice, adding 1–2 weeks for re-submission.
Skip the Paperwork on Your Grease Trap/Interceptor Permit
ApronPrep auto-fills 19 of 23 fields from one compliance interview.
No credit card required
Grease Trap/Interceptor Permit by City in Texas
| City | Fee Range | Timeline |
|---|---|---|
| Dallas | ||
| Houston | Contact Houston Health Department for current fee schedule | Contact Houston Health Department for processing timelines |
| San Antonio | Contact San Antonio Water System for current fee schedule | 180 days from effective date of ordinance for new interceptor installation; Annual inspection cycle thereafter |
Government Filing Fees
Contact San Antonio Water System for current fee schedule
Timeline: Varies (Approximately 7-9+ Months for New Installation)
Determine if business qualifies as Food Service Establishment (FSE) or Food Processing Establishment (FPE)
Review your business's Standard Industrial Classification (SIC) code and the San Antonio Unified Development Code (UDC), Article VI, Division 3, to confirm classification. SAWS considers any establishment that prepares or serves food, including bakeries, meat markets, and cafeterias, as regulated. Having your menu and a brief equipment list ready helps clarify your status with SAWS.
Verify current grease interceptor installation and compliance status
Locate your facility's as-built plumbing plans or hire a licensed plumber to inspect your current interceptor's size, location, and connection. Check SAWS records by calling (210) 233-3344 to see if a permit is already on file. The most common compliance failure is an undersized interceptor that cannot handle the calculated grease waste load per UDC requirements.
Install compliant grease interceptor if not already equipped (deadline: 180 days from ordinance effective date for existing facilities)
Hire a SAWS-approved plumbing contractor to install an interceptor sized according to SAWS's Grease Control Program Manual. You must submit plumbing plans to SAWS Development Services for a plumbing permit (separate government filing fees apply) before installation begins. Missing the 180-day deadline for existing facilities can trigger enforcement actions and daily penalties.
Where to Apply
Applications are handled by your local department of public works (dpw) in each city. Select your city below for authority details, fees, and processing timeline.
Other Requirements You'll Need
This is one of 13 requirements for opening a restaurant in Texas.
ADA Compliance Self-Certification
federal
Alarm System Permit/Registration
local
Alcoholic Beverage License Posting/Display Requirement
state
Application for Employer Identification Number
federal
See all co-required forms and how they connect to your compliance dossier.
See All RequirementsProcessing times vary significantly and are not published as a standard timeline by the City of San Antonio's Development Services Department. The timeline depends on project complexity, plan review cycles, and inspection scheduling. Contact the Water Resources Department to confirm the current estimated wait after submitting a complete application with all required site and plumbing plans.
The government filing fee for the permit itself is $0, per the City of San Antonio fee schedule. However, you will incur costs for the required plan review, installation, and associated inspections, which are billed separately. These costs vary based on the size and complexity of your interceptor system; verify current review and inspection rates directly with the Water Resources Department. Not legal advice.
No, grease trap permits are not transferable between locations or business owners. The permit is specific to the approved plumbing installation at a given address. A new owner must apply for a new permit, which requires submitting updated plans and may trigger a new inspection. This process is similar to applying for a new Building Permit for tenant improvements.
The installation permit itself does not expire, but ongoing compliance is enforced through a mandatory maintenance program. Establishments are typically required to have grease traps pumped and cleaned at a frequency determined by their size and grease output, with documentation submitted to the city. Failure to maintain records can result in violations, similar to lapses in Backflow Prevention Device Certification.
A city inspector will verify that the installed interceptor matches the approved plans, is the correct size and type for your facility's flow rate, and is properly connected to the sanitary sewer line. They will check for proper venting, accessible cleanouts, and correct labeling. The inspection must pass before the final plumbing can be covered, which is a critical step before you can apply for a Certificate of Occupancy.
About This Data
This guide is generated from ApronPrep's compliance dossier system, which uses 53 parallel AI authority experts to discover requirements, then downloads actual forms and generates field-level intelligence for each one.
For Texas specifically, we have analyzed compliance dossiers for 3 cities (Dallas, Houston, San Antonio), generating Rich FILs (Form Intelligence Layers) with 23 form fields analyzed for this requirement. Fee data is sourced from actual county department fee schedules, not estimates.
Our data is verified against official government sources and updated when regulatory changes are detected. If you find an error, please report it — accuracy is our core commitment.
Sources
- Local sewer use regulations, water connection requirements, road/sidewalk ordinances, grease discharge limits
- Dallas — Department of Public Works (DPW)
- Houston — Department of Public Works (DPW)
- San Antonio — Department of Public Works (DPW)
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