Los Angeles County Public Works - Industrial Waste
Environmental Programs public counter located on the 3rd floor of the Annex building in Alhambra is open to the public. In order to maintain facility capacity we have implemented an online appointment system. Masks are highly recommended at all times for all visitors and staff. Click here to schedule an in person appointment or call (626) 458-3517 for questions or assistance.

For Industrial Waste questions or submissions, email us at iw@pw.lacounty.gov. You can also mail submissions to:

Los Angeles County Public Works
Environmental Programs Division
900 S. Fremont Ave
Alhambra, CA 91803

If you have any questions, contact the Environmental Programs Public Counter at (626) 458-3517, Monday to Thursday, 8 am to 4 pm.

Instructions for Obtaining Clearance

Pretreatment Guidelines for Restaurant (FOG Guidelines)

Fats, oils and grease (FOG) can build up in the sewer lines and causes restriction in flow, resulting in blockages in the sewer lines, which ultimately results in increased in maintenance costs.

Public Works has FOG program in place to prevent sewage overflows into the environment, as well as to reduce the discharge of FOG to the sewer system. please see below for our FOG Guidelines.
Application forms

There are two types of industrial waste permit application forms. Permit applications must be completely filled out and signed by the person responsible for the waste discharge. Since this is an operating permit application, the signature of the consultant is not acceptable.

Plan Submittal Requirements:

The plans shall include the following information:

  • Plans for Domestic Waste Clearance, plans for Public Works Industrial Waste and SUSMP/LID Clearances as well as plans for LACSD Joint Permits need to be in PDF format* and text searchable.
  • Name and address of the facility discharging the wastewater need to be shown on the lower right-hand corner of each plan sheet.
  • Site plan drawn to scale showing acreage, adjacent cross streets, north arrow, and location of pretreatment system(s). Site plan needs to show the location of the pretreatment device and its connection to the street.
  • Site utility plan.
  • Site drainage plan.
  • Architectural floor plan identifying each area in the building by its use (i.e., food preparation, car wash, plating, laboratory, storage, office, restrooms, etc.).
  • Plumbing plan(s) showing all drains including floor drains, floor sinks, trench drains, service sinks, and supply/waste lines and facilities handling industrial wastewater from the point of origin to the connection to the point of disposal (i.e., public sewer, private disposal system, and/or holding facility for offsite disposal). All equipment or facilities generating industrial wastewater must be identified on the plans. The equipment schedule for the kitchen layout must be included as well.
  • Detailed drawings of all pretreatment systems with dimensions and manufacturer's specifications.
  • All aboveground storage tanks/drums with proper spill containment details. Provision for spill containment is required where chemicals and/or waste materials may potentially enter the sewer system, storm drain, or contaminate soil. Spill containment should be designed for the volume of the largest tank or ten percent of the drum total, whichever is greater, plus six inches of rainfall over the containment area if outdoors.
  • All outside wastewater producing and storage areas shall have a permanent cover. If a roof is not feasible, a rainwater diversion system may be proposed.

* Submittals by email are preferred. However, the applicant my submit hard copies at our public counter or by mail (PDF copies are still required).

  • A person owning or operating premises containing industrial waste treatment or disposal facilities operated under a valid permit issued under the provisions of LACC, Title 20, Division 2, must submit a closure application form (PDF, 1015 KB) when the operations that generated wastewater have terminated, and the pretreatment facilities are to be permanently closed.
  • Closure authorizations may require soil samples and a closure report with a review fee depending on the site history and type of operation.
A permit processing fee and a plan check fee will be determined based on the type of industry and the facility location. Please contact this office for further information.

Supporting Information
  • Submit a letter on site business letterhead, describing the overall operation, the operations which generate wastewater, and proposed wastewater pretreatment systems.
  • Pursuant to the LACC, Title 20, Division 2, Section 20.32.440, the allocable peak discharge rate to a public local sewer from a heavy industrial zoned property is calculated at 0.021 cubic feet per second (cfs) per acre, equivalent to 9.4 gallons per minute (gpm) per acre. Administratively, parcels smaller than or equal to 0.8 acres are allowed a peak maximum discharge rate of 7.5 gpm. Additional sewer capacity above the allotted amount will require a sewer capacity clearance from the local jurisdiction.
Managed by the Los Angeles County Public Works, Environmental Programs Division
Toll Free Phone Number: 1(888) CLEAN LA
Clean LA Home| Clean LA FAQ| About Clean LA| Clean LA Site Index| Contact Clean LA