Cal. Code Regs. Tit. 23, div. 3, ch. 16, app III

Current through Register 2024 Notice Reg. No. 49, December 6, 2024

Appendix III - Examples of Quantitative Release Detection Methods for Existing Tanks

Detection Method	Performance Standards
Automatic Tank Gauging (At least once every 30 days)	Section 2643(b)(1)
Statistical Inventory Reconciliation (At least once every 30 days) and Tank Integrity Testing (At least once every 24 months)	Section 2643(b)(2)
Continuous In-tank Leak Detection (At least once every 30 days)	Section 2643(b)(3)

Examples of Quantitative Release Detection Methods for Single-Walled Pressurized Piping

Detection Method	Performance Standards
Automatic Mechanical Line Leak Detector (Hourly) and 0.2 Gallons Per Hour Monitoring (At least once every 30 days)	Section 2643(c)(1) & Section 2643(c)(2)
Automatic Mechanical Line Leak Detector (Hourly) and Line Tightness Test (At least once every 12 months)	Section 2643(c)(1) & Section 2643(c)(3)
Automatic Electronic Line Leak Detector (Hourly) and (At least once every 30 days or 12 months) (meets both section 2643(c)(1) and (2) or (3))	Section 2643(c)(1) & Section 2643(c)(2) or Section 2643(c)(3)

Examples of Qualitative Release Detection Methods for Single-Walled Suction Piping

Detection Method	Performance Standards
Line Tightness Test (At least once every 36 months) and Daily Monitoring	Section 2643(d) & Appendix II

Example of Qualitative Release Detection Methods for Single-Walled Gravity Flow Piping

Detection Method	Performance Standards
Line Tightness Test (At least once every 24 months)	Section 2643(e)

Examples of Qualitative Release Detection Methods for Existing Tanks and Piping

Detection Method	Performance Standards
Vapor Monitoring (Continuous)	Sections 2644(a), (b), & 2647
Ground Water Monitoring (At least once every 30 days)	Sections 2644(a), (c), & 2648

Cal. Code Regs. Tit. 23, div. 3, ch. 16, app III

1. New Appendix IV filed 8-9-91 as an emergency; operative 8-9-91. Text remains in effect uninterrupted pursuant to Health and Safety Code section 25299.7 (Register 92, No. 14).
2. Editorial correction of printing errors in HISTORY 1 (Register 92, No. 43).
3. Repealer and renumbering and amendment of former Appendix IV to Appendix III filed 4-5-94; operative 5-5-94 (Register 94, No. 14). For prior history, see Register 92, No. 43.
4. Repealer and new Appendix III filed 8-27-2018; operative 10-1-2018 (Register 2018, No. 35).

1. New Appendix IV filed 8-9-91 as an emergency; operative 8-9-91. Text remains in effect uninterrupted pursuant to Health and Safety Code section 25299.7 (Register 92, No. 14).
2. Editorial correction of printing errors in History 1 (Register 92, No. 43).
3. Repealer and renumbering and amendment of former Appendix IV to Appendix III filed 4-5-94; operative 5-5-94 (Register 94, No. 14). For prior history, see Register 92, No. 43.
4. Repealer and new Appendix III filed 8-27-2018; operative 10/1/2018 (Register 2018, No. 35).