UST Program – Available Local Guidance (LG) Letters
The phone numbers identified in the following LG Letters may be old.
See current phone numbers of SWRCB staff.
LGs that are not on this list are obsolete or outdated.
See obsolete/outdated LGs.
[1 - 110 ] [111 - 119 ] [120 - 129 ] [130 - 139 ] [140 - 149 ] [150 - 159 ] [160 - 171 ]
| Letters 160-171 | Description |
|---|---|
| Permanent Closure of Underground Storage Tanks that do not meet Health and Safety Code, Chapter 6.7, Section 25291, Subdivisions (a)(1)-(6) | |
| Collection of Tank Owner BOE Account Number | |
| Clarification of Requirements for Vapor Condensate Traps | |
| Qualifications & Scope of Work for UST Installers and Service Technicians | |
| LG 166 | UNDER REVISION Guidelines for Testing Spill Buckets »» Enclosure - Spill Bucket Test Report Form |
LG-165-2 |
UNDER REVISION Storage Tanks in Containment Structures Located Beneath the Surface of the Ground Health and Safety Code Section 25283.5 Exemption |
| Reporting of Technical Compliance Rate (For use on or after July 1, 2020) | |
| LG 163-1 | UNDER REVISION General
Recommendations for Testing Leak Detection
Sensors. »» Enclosure 1 - General Recommendations for Testing Leak Detection Sensors. »» Enclosure 2 - Vacuum/Pressure Sensor Certification Form |
| LG 162-5 | Installation and Monitoring Requirements for Underground Storage Tanks Installed on or after July 1, 2003 (12/12/19) |
| Enhanced Leak Detection (3/25/08) | |
| Underground Storage Tank (UST) Secondary Containment Testing |
| Letters 150-159 | Description |
|---|---|
LG 159 |
UNDER REVISION Annual Underground Storage Tank Compliance Inspection »» Enclosure - Annual Underground Storage Tank Compliance Inspection Handbook |
| New Landowner Notification and Participation Requirements | |
| UNDER REVISION Aboveground Piping Associated With an Underground Storage Tank System | |
| Bulk Field-constructed Underground Storage Tanks Monitoring and Compliance | |
| Underground
Storage Tank Overfill Prevention Systems (previous title: Ball Float Vent Valve vs. Fill Tube Positive Shutoff Valve |
| Letters 140-149 | Description |
|---|---|
| Clarification of Corrosion Specialist and Cathodic Protection Tester | |
| Regulatory Status of Hydrant Fueling Systems at California Airports | |
| Permanent Hydraulic Fuel Tank Exemption |
| Letters 130-139 | Description | Reporting
Statistical Inventory Reconciliation (SIR) Results
(Supersedes LG 139-1) »» Attachment 1 | Attachment 2 |
|---|---|
| Rescission - Regulation of Dispenser Piping and Related Equipment | |
| UNDER REVISION Interior Lining and Cathodic Protection of USTs |
| Letters 120-129 | Description |
|---|---|
| LG 125-1 | Product Level Requirement for Tank Testing Methods |
| Applicability of the Closure Regulations To Tank Decommissioned Before January 1, 1984 |
| Letters 110-119 | Description |
|---|---|
| Certification of Underground Storage Tank Installations | |
| Underground Storage Tank Tank Test Result Reporting | |
| Regulation of Compartmental Underground Storage Tanks (UST) | |
| List of Leak Detection Equipment and Methods for Underground Storage Tanks |
| Letters 1-110 | Description |
|---|---|
| Regulatory Status of Farm Tanks and Heating Oil Tanks | |
| Liquefied Petroleum Gas (LPG) Underground Storage Tanks | |
| Licensed Tank Testers and Tank Testing Companies | |
| Third Party Responsibility for Unauthorized Release Reporting | |
| Proposition 65 Disclosure | |
| UNDER REVISION Contractors' Licensing and Certification Requirements for Installation, Removal, and Upgrade of Underground Storage Tanks |
