COMPLIANCE INFO_1987-1998 - Laserfiche WebLink

Home Browse Search

CCR, Tart; 23, DmsION 3, CHArm 16, UNDERGROUND STORAGE TANK REGULATIONS CCR, Tr LE 23, DmsioN 3, CHAP= 16, UNDERGROUND STORAGE TANx REGULATIONS any underground storage tank tests, other than those required by this article, (b) performed on the underground storage tank or piping to detect an unauthorized release shall be reported by the owner or operator to the local agency within 30 calendar days of completion of the test. The report shall be LQ presented in written and/or tabular format, as appropriate, and shall be ata level of detail appropriate for the release detection method used (d) Authority: Health and Safety Code 25299.3, 25299.7 14 -'D Reference: Health and Safety Code 25292; 40 CFR 280.40 - 280.45 (e) 2643.1. Tank Integrity Testing Requirements Tank integrity testing shall meet the requirements of section 26430 and shall be conducted using one of the two methods in subsections (a) or (b) below. Tank integrity test methods shall account for the effects of thermal expansion or contraction of the p vapor pockets, tank deformation, evapo ,ry . n or condensation, and the presence of water in the backfill: (a) A volumetric rank integrity test shall be cajabLe of detecting a release of 0.1 gallon per hour from any portion of the tank when the tank is at least 65% full of product or at any product level if the product filled portion of the tank is tested under pressure equivalent to that of a full tank. If any volumetric tank integrity test ts conducted at a product level lower than the overfill protection devIce ret point, a rest tweeting the requirements of subsection (b) must ` used to test the u IlW portion of the tank. (b) A nonvolumetric tank integrity test shalt b capable of detecting a relem of 0.1 gallon per hour from any poiction of the tank at my product levet- IsReference: Health Authority: Health and Safety Code 25299.3, 25299.7 and Safety Code 25292, 40 CFR 240 - 280.45 (a) An owner or operator who is required, pursuant to 'section 2641 to establish a non-visuat monitoring program, shall comply with tlie requirements of this section if a qualitative release detection method is Each qualitative release detection method, including interstitial mon4ors, shall have an independent ' evaluation to certify accuracg,. and response time of the detection method in accordance with procedures in Appendix IVP: Examples of qualitative detection methods that may be used are in Appendix III. TtW<. .4-9 - If vadose zone monitoring is used as a release detection method, it shall be cdttducted in accordance with section 2647. water monitoring is used as a release detection method, it shall be I in accordance with section 2648. t release detection method which includes the installation of wells or drilling other borings shall comply with installation, u, and sampling and analysis procedures in section 2649. Underground pressurized piping that is monitored at least monthly by a non - visual qualitative release detection method satisfies the annual tightness test requirement of section 25292(e) of the Health and Safety Code. Authority: Health and Safety Code 25299.3, 25299.7 Reference: Health and Safety Code 25292; 40 CFA 280.43 2645. Manual Tank Gauging and Tcsftg for Small Tanks (a) Manual tank gauging may be used as part of a non -visual monitoring program for existing underground storage tanks which have a total system capacity of 2,000 gallons or less and which can be taken out of service for at least 48 or 72 continuous hours each week as indicated in Table 4.1. (b) Manual tank gauging shalt be conducted weekly in accordance with subsection (d). Piping testing shalLbe conducted in accordance with section 2643(c), (d), or, (e). Tanks with a capacity o€1,001 w and including 2,000 gallons shall also receive a: tank integrity rem each year. Tanks with a capacity of 551 to and Including I,000" gallons shall also have an annual tank integrity test unless the gauging period is 60 hours or, encs of section 2643(b) do not apply tcv taints which art monitored in accordance with this section. (e) Manual tank gauging shall not be used on tanks with secondary containment and. shall not be used at a leak detection method after December 22, 1998, for underground storage tanks with a capacity greater than 1,000 gallons. (d) Owners or operators of existing underground storage tanks who use manual tank gauging as part ofs non visual monitoring program shall conduct weekly gauging according to dia following specifications. (1) Tank liquid level measurements shall be taken at the beginning and end of a gauglag, shall be at least 36 or 60 continuous hours as set f >. its T 41 during which no liquid is added to or >he The underground storage tank shall be secured tap or wale during. the gauging period. 7 4 10 1„