UNDERGROUND STORAGE TANK INSPECTION CHECKLIST Facility Name: Inspector will mail copy of this inspection report to the tank owner at: General Requirements A. Site Administration 1. Submit/revise Facility and Tank UST forms 2. Submit/revise Cert. of Compliance Form for Install 3. Submit/revise Financial Responsibility paperwork 4. Submit written contract between owner and operator 5. Obtain valid UST operating permit 6. Submit/revise facility plot plan showing UST systems 7. Submit/revise routine Monitoring Procedure 8. Submit/revise Release Response Plan 9. Document alarms, releases, and maintenance records 10. Document tightness tests comply with state regs 11. Provide annual calibration/testing records for leak detection equipment in required format 12. Provide monitoring system annual certification tag 13. Provide certificate of training for monitoring system tester 14. W/in 1,000 ft. of well: Y N Date Notified: Provide enhanced leak detection B. System Maintenance and Operation 1. Remove product from sumps, dispenser pans 2. Find and repair leak(s) 3. Provide required cathodic protection system inspection/documentation 4. Provide required inspections for lined tanks 5. Secure monitoring wells 6. Repair monitoring system 7. Cease placing panel in silence mode 8. Provide dispenser pans. 9. Provide/repair dispenser pan monitoring 10. Repair tank system 11. Replace turbine sump gasket(s) 12. Provide required secondary containment testing Viol. Comments CM.5..3.1 UST Checklists UST Checklist page 1 Page of
Liv./Pl,eas. Monitoring of Double Walled Tanks and Piping C. Double Walled Tank and Pipe Monitors (gravity, suction and pressure piping) 1. Provide continuous monitor with audible and visual alarms (annular space, sumps, dispenser pans) 2. Relocate sump sensor to proper level Viol. Comments Check if applicable ------ Double-walled pressure piping ------ In additional to secondary containment monitoring, one of the following three options must be provided Viol. Comments D. Option 1 Check if applicable 1. Provide line leak detector at 3.0 gph at 10 psi 2. Provide documentation of annual service of line leak detector 3. Provide at least annual tightness test at 0.1 gph at 150% working pressure (electronic LLD or precision test) E. Option 2 Check if applicable 1. Have secondary containment monitor shut off turbine on detection of leak (in addition to alarms) 2. Provide at least annual tightness test at 0.1 gph at 150% working pressure. (electronic LLD or precision test) 3. Provide documentation of annual service for line leak detector, if line leak detector used to provide 0.1 gph test F. Option 3 Check if applicable 1. Have secondary containment monitor shut off turbine on detection of leak and if the monitoring system fails or is disconnected (in addition to alarms) Note: the turbine shut off feature is not required on emergency generators if the monitoring system is checked daily. (Can test this feature by shutting of breaker). 2. Label breaker serving monitoring system (if breaker used to test failsafe feature). Note: see CCR Title 23 Section 2636 for a discussion when vent, riser, vapor recovery, and suction piping are exempt from secondary containment (and thus monitoring of secondary containment). For this piping see the monitoring requirements for single walled pipe. CM.5..3.1 UST Checklists UST Checklist page 2 Page of
Monitoring of Single Walled Pipes G. Single Walled Pressure Pipe Check if applicable 1. Provide line leak detector - 3.0 gph at 10 psi 2. Provide annual service for line leak detector 3. Modify line leak detector to restrict flow or shut off turbine when release detected, detector fails, or detector disconnected 4. Provide Monthly pressure test at 0.2 gph at normal operating pressure OR Annual pressure test at 0.1 gph at 150% of operating pressure H. Single Wall Suction Piping Check if applicable 1. Provide 3 yr. pressure test at 0.1 gph for piping at 40 psi (volumetric ok if piping cannot be isolated) 2. Provide documented visual monitoring of dispensers and turbine per App. II of UST regs (Monthly ok for emergency generators) I. Single Wall Gravity Piping Check if applicable 3. Provide 2 year pressure test at 0.1 gph at 40 psi (volumetric OK if cannot be isolated) CM.5..3.1 UST Checklists UST Checklist page 3 Page of
Monitoring of Single Walled Tanks Automatic Tank Gauge Systems J. Automatic Tank Gauge Checklist 1. System Manufacturer: 2. System Name and Model Number: 3. Gauge system installed after 1994 - provide LG-113 listed system 4. Correct the following conditions which did not comply with System spec in LG 113 5. Waiting times between delivery and testing 6. No dispensing between delivery and testing 7. Test period 8. Tank Size 9. Investigate alarms 10. Provide operation/maintenance manual on-site 11. Repair/maintain the system 12. Identify and repair indicated leak (calc. leak rate exceeds threshold, repeated water in tank) 13. Provide hard copy report including the following: Tank identification Time and date of test Product depth Product volume Water Depth Product Temperature Duration of the test Calculated leak rate (required for system installed after 1/1/95) Leak threshold required for system installed after 1/1/95) Test result ( PASS or FAIL) 14. Correct past lack of maintenance of records for three years 15. Correct test frequency - Test each tank at least once each month 16. Correct product level during test within 10% of highest operating level and per manufacturer s specifications 17. Provide documentation of annual maintenance and service CM.5..3.1 UST Checklists UST Checklist page 4 Page of
Monitoring of Single Walled Tanks Statistical Inventory Reconciliation K. Statistical Inventory Reconciliation Checklist 1. System Manufacturer: 2. System Name and Model Number: 3. Provide tank integrity test every two years as required 4. Identify and repair indicated leak (per SIR and/or tank test results) 5. Provide tank integrity test within 15 calendar days of receipt of two successive reports which are inconclusive or which indicate a possible unauthorized release. 6. Submit required annual written statement indicating the results of the reports for the last 12 months 7. Keep SIR records on-site for at least 3 years as required 8. Repair/calibrate dispenser meters (they must comply with Title 4, Division9 Division of Measurement Standards, Department of Agriculture meters shall be inspected and recalibrated by the County Department of Weights and Measures or a device repair person as defined in Division 5, Chapter 5.5 of the Business and Professions Code.) 9. Reconcile inventory records once per month 10.Utilize industry standard techniques not currently used a. Use gauge with flat ends b. Use product finding paste c. Use Water finding paste d. Use a dipstick that reaches the tank bottom e. Use a dipstick with legible markings to the nearest 1/8th inch f. Fill tube shall extend to within 6 of tank bottom h. Ensure consistent readings 11. Maintain on-site the following required documentation not currently kept: 1.Tank inventory before and after each delivery 2. Daily water level readings 3. Daily tank level readings 4. Deliveries and sales correlated with fuel level readings CM.5..3.1 UST Checklists UST Checklist page 5 Page of
CM.5.3.2. UST Checklist Back Page Rev. Date:2/10/2004 Monitoring Requirements for Underground Storage Tank (UST) Piping NOTE: Due to some confusion regarding the wording of the statute and the regulations, some single-walled piping systems installed between 1/1/84 and 7/1/98 have been allowed to remain single-walled. In addition, Article 3 of Title 23, California Code of Regulations, Division 3, Chapter 16 (UST Regulations) which deals with design, construction, and monitoring standards for new UST systems, does not specifically address the monitoring of single-walled suction piping systems which are exempted from the secondary containment requirement. Therefore, Article 4 (Existing UST Monitoring Requirements) of the UST Regulations will be used to establish monitoring requirements for all legally existing single-walled piping. All citations below refer to sections of the UST Regulations. TYPE SINGLE-WALLED PIPING DOUBLE-WALLED PIPING Pressure 2643(c) Option 1 Hourly monitoring at any pressure to detect, within one hour of occurrence, a release rate of 3.0 gph defined at 10 psi. Detection shall result in the restriction or shut off of the flow through the piping or the activation of an audible or visual alarm; AND Monthly testing at any pressure to detect a release rate of 0.2 gph defined at normal operating pressure; OR Option 2 Hourly monitoring at any pressure to detect, within one hour of occurrence, a release rate of 3.0 gph defined at 10 psi. Detection shall result in the restriction or shut off of the flow through the piping or the activation of an audible or visual alarm; AND Annual testing at a pressure designated by the test equipment manufacturer to detect a release rate of 0.1 gph defined at 150% of the normal operating pressure. 2636 (f) Option 1 Continuous monitoring system for secondary containment which meets the requirements of 2643(f) and is connected to an audible and visual alarm; AND Automatic line leak detector (ALLD) to detect within one hour a leak rate of 3.0 gph defined at 10 psi with a 95% or better probability of detection and 5% or less probability of false alarm as certified per 2643(f); AND Annual tightness test at a pressure designated by the test equipment manufacturer to detect a release rate of 0.1 gph defined at 150% of the normal operating pressure with a 95% or better probability of detection and 5% or less probability of false alarm. OR Option 2 Continuous monitoring system for secondary containment which meets the requirements of 2643(f) and shuts down the pump and activates an audible and visual alarm when a release is detected; AND Annual tightness test at a pressure designated by the equipment manufacturer to detect a release rate of 0.1 gph defined at 150% of the normal operating pressure with a 95% or better probability of detection and 5% or less probability of false alarm. OR Option 3 Continuous monitoring system for secondary containment which shuts down the pump and activates an audible and visual alarm when a release is detected and automatically shuts down the pump when the monitoring system fails or is disconnected. (For emergency generators, the shuts down the pump feature may be waived if the monitoring system is checked at least daily.) Suction 2643(d) Testing every three years at a pressure designated by the test equipment manufacturer to detect a release rate of 0.1 gph defined at 40 psi, minimum. If piping cannot be isolated, an approved volumetric tank integrity test is acceptable. Maintain written records of daily visual as described in Appendix II of the UST Regulations. (Monthly visual monitoring is acceptable for emergency generators.) 2636(f) Continuous monitoring system for secondary containment which meets the requirements of 2643(f) and is connected to an audible and visual alarm Gravity 2643(e) Testing at least every two years at a pressure designated by the test equipment manufacturer, to detect a release rate of 0.1 gph defined at 40 psi. If piping cannot be isolated, an approved volumetric tank integrity test is acceptable. 2636(f) Continuous monitoring system for secondary containment which meets the requirements of 2643(f) and is connected to an audible and visual alarm