What testing do I need to have done?
- The UST monitoring system and spill buckets must be tested annually
- For UST systems that are not programmed for positive shutdown and fail-safe, an annual pipeline integrity test is required
- For tanks installed prior to July 1, 2003, secondary containment testing (SB 989) is required every 36 months
- Underground tanks with single-walled components or unique circumstances may require additional testing. Please contact your inspector for guidance
Underground Storage Tank System Testing Intervals
| UST System Testing |
Required Testing Interval |
| Annually |
Every 3 Years |
Following Modifications to Component |
If Applicable |
| Monitor System Certification |
X |
|
X |
|
| Leak Detector |
X |
|
X |
|
| Spill Bucket |
X |
|
X |
|
| Secondary Containment1 |
|
X |
X |
|
| Tank Integrity |
|
|
|
X2 |
| Pipeline Integrity |
X3 |
|
|
|
1Not required on VPH systems.
2Only required for single-walled tanks. Interval depends on monitoring plan.
3For single-walled piping or systems not programmed for positive shutdown and fail safe.
|
