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 Underground Storage Tanks questions or submissions, email us at ust@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.
For Underground Storage Tanks questions or submissions, email us at ust@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.
Underground Storage Tank (UST) Unified Facility Permit
All new sites must obtain a permit through the PW Environmental Programs Division before installing underground storage tanks (USTs). All sites with USTs must have a current Unified Program
Facility Permit. If a site has an un-permitted underground storage tank, it must be permitted before it is removed.
New Installation Application Forms
Plans
At least 4 sets of plans need to be submitted. Submitted plans should include the following:
When construction is completed
The CERTIFICATION OF INSTALLATION / MODIFICATION form must be submitted electronically to the CERS Business Portal before the UST system is put into service.
Tank tightness testing, line test results, results of enhanced leak detection or other approved method to satisfy requirements of the HSC/CCR, secondary containment testing results, monitoring system certification and line leak detector certification, must be submitted directly to DPW EPD before the UST system is put into service.
- Completed UST Unified Facility Permit Form (PDF, 26 KB) application form;
- Completed New Construction Plan Clearance/Addendum (PDF, 24 KB) application form;
- Submit all fees payable to the Los Angeles County Public Works (for HMUSP, pro-rated Annual Permit Maintenance Fee, and new construction plan clearance fees);
- Complete and submit the BUSINESS OWNER/OPERATOR IDENTIFICATION, BUSINESS ACTIVITIES, FACILITY INFORMATION, TANK INFORMATION and MONITORING PLAN to the California Environmental Reporting System (CERS) Business Portal;
- Comply with all Certified Unified Program Agency (CUPA) permitting requirements with County Fire Department Health Hazardous Materials Division
- For petroleum UST's, submit Certification of Financial Responsibility info to CERS;
- Submit work plan to perform enhanced leak detection or other approved method;
- Submit Response Plan;
- Permits/clearance for installations must also be obtained from the Los Angeles County Fire Department Fire Prevention or local city fire department, the DPW Building and Safety Division or local city building and safety equivalent, either the South Coast or Antelope Valley Air Quality Management Districts (AQMD), and other contractor health and safety permits;
- Completed Designated Operator form.
- Contractors installing underground storage tanks (USTs), which includes piping, sumps, and under dispenser containment, must be licensed by the California Contractors State License Board and possess the Hazardous Substance Removal Certification (HAZ). When installing underground storage tanks, piping, sumps, under dispenser containment, contractors and/or their employees performing the work (if the contractor is not present on-site) must possess certification in California by the International Code Council (ICC) for UST Installation/Retrofitting and possess a current certification by the manufacturer of the equipment to be installed. When installing, modifying, or testing ancillary UST related equipment, such as monitoring equipment, sensors, spill buckets, drop tubes, spill or overfill prevention devices, contractors and/or their employees performing the work (if the contractor is not present on-site) must possess certification by ICC as a California UST Service Technician and possess current certification by the manufacturer of equipment to be installed, modified or tested.
Plans
At least 4 sets of plans need to be submitted. Submitted plans should include the following:
- Site plan to scale depicting the tank(s) and fill and piping sumps, type of hazardous substance to be stored, piping layout (product/waste, vapor recovery (gasoline), tank vent, remote fill) and dispensers (if any), location of monitoring system panel, audible/visual alarms (if any), emergency fuel shutdown switch, building structures, streets (and cross street), utilities, and north arrow;
- A detailed parts list which includes the manufacturer name, model number, and third party approval of equipment to be installed. The parts list should include (but not be limited to):
- Double-walled tank, size and product to be stored;
- Spill buckets; drop tube; overfill protection device(s) - Phase I Enhanced Vapor Recovery equipment (see Air Resources Board Executive Orders)
- Sumps (fill and piping);
- Double-walled piping (product, vent, vapor recovery, remote fill, flex) and sizes;ยท Penetration/bulkhead fittings/test boots;
- Turbine (for pressurized systems);
- Automatic Line Leak Detector (for pressurized systems);
- Under dispenser containment (UDC);
- Monitoring panel and alarm;
- Monitoring sensors for tank interstitial, automatic tank gage and/or high level alarm (if any), fill and piping sump sensors, UDC sensors and vacuum sensors.
- Detail drawing of each: All primary and secondary containment equipment which is designed to hold hazardous substances (tanks, sumps, penetration fittings, piping, UDC) must be labeled as being product tight.
- Tank details should show the parts listed above at a minimum.
When construction is completed
The CERTIFICATION OF INSTALLATION / MODIFICATION form must be submitted electronically to the CERS Business Portal before the UST system is put into service.
Tank tightness testing, line test results, results of enhanced leak detection or other approved method to satisfy requirements of the HSC/CCR, secondary containment testing results, monitoring system certification and line leak detector certification, must be submitted directly to DPW EPD before the UST system is put into service.
