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SWRCB,January 2002 Page of l <br /> 4. TANK ANNULAR TESTING <br /> Test Method Developed By: ❑Tank Manufacturer X Industry Standard ❑Professional Engineer <br /> ❑Other(Spec) <br /> Test Method Used: ❑Pressure X Vacuum ❑Hydrostatic <br /> ❑Other(Spec) <br /> Test Equipment Used:Tank annular vacuum test unit Equipment Resolution: 0 <br /> ONE= Tank# 1/2-87/91 Tank#3 DSL West Tank#4 DSL East Tank# <br /> Is Tank Exempt From Testing?' ❑Yes X No ❑Yes X No ❑Yes X No ❑Yes X No <br /> Tank Capacity: 20,000 20,000 20,000 <br /> Tank Material: Fiberglass Fiberglass Fiberglass <br /> Tank Manufacturer: N/A N/A N/A <br /> Product Stored: 87/91 Diesel Diesel <br /> Wait time between applying MAR, 0 9 2015 <br /> pressure/vacuum/water and 5 Minutes 5 Minutes 5 Minutes <br /> starting test: <br /> Test Start Time: 10:40 AM 1:45 PM 2:55 PM <br /> Initial Reading(RI): -10 InHg -10 InHg -10 InHg <br /> Test End Time: 11:40 AM 2:45 PM 3:55 PM <br /> Final Reading(RF): -10 InHg -10 InHg -10 InHg <br /> Test Duration: 1 Hour 1 Hour 1 Hour <br /> Change in Reading(RF-Ri): 0 0 0 <br /> Pass/Fail Threshold or Criteria: 0 0 0 <br /> ^ <br /> Was sensor removed for testing? X Yes ❑No ❑NA X Yes ❑No ❑NA X Yes ❑No ❑NA ❑Yes ❑No ❑NA <br /> Was sensor properly replaced and <br /> tional after testiX Yes 11 No ❑NA X Yes ❑No ❑NA X Yes ❑No ❑NA ❑Yes ❑No ❑NA <br /> verified funcn ? <br /> Comments—(include information on repairs made prior to testing, and recommended follow-up for ailed tests) <br /> ' Secondary containment systems where the continuous monitoring automatically monitors both the primary and secondary <br /> containment,such as systems that are hydrostatically monitored or under constant vacuum,are exempt from periodic containment <br /> testing. {California Code of Regulations,Title 23, Section 2637(a)(6)) <br />