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SWRCB, January 2002 Page _2_ of —8- 4. TANK ANNULAR TESTING Test Method Developed By: ❑ Tank Manufacturer N Industry Standard ❑ Professional Engineer ❑ Other (Specify) Test Method Used: ❑ Pressure N Vacuum ❑ Hydrostatic ❑ Other (Spec) Test Equipment Used: 0 — 30" VACUUM GAUGES Equipment Resolution: + / - 0.002" Tank # 87 MAIN Tank # 87 SYPHON Tank # 91 Tank # Is Tank Exempt From Testing?' ❑ Yes N No ❑ Yes N No ❑ Yes N No ❑ Yes ❑ No Tank Capacity: 12,000 12,000 12,000 Tank Material: FIBERGLASS FIBERGLASS FIBERGLASS Tank Manufacturer: UNKNOWN UNKNOWN UNKNOWN Product Stored: 87 87 91 Wait time between applying pressure/vacuum/water and starting test: 15 MIN 15 MIN 15 MIN Test Start Time: 12:00 PM 12:20 PM 12:40 PM Initial Reading (Rj): 10" 10" 10" Test End Time: 1:00 PM 1:20 PM 1:40 PM Final Reading (RF): 10" 10" 10" Test Duration: 1 HR 1 HR 1 HR Change in Reading (RF -R,): 0 0 0 Pass/Fail Threshold or Criteria: NO LOSS NO LOSS NO LOSS NO LOSS Test Results N Pass ❑ Fair 0 Pass ❑ Fail ® Pass ❑ Fail ❑ Pass ❑ Fail Was sensor removed for testing? ❑ Yes N No ❑ NA ❑ Yes N No [--INA ❑Yes N No [:INA ❑Yes ❑ No [:INA Was sensor properly replaced and verified functional after testing? ❑Yes [:]No ®NA ❑Yes ❑ No ®NA ❑Yes ❑ No ®NA ❑Yes ❑ No ❑NA Comments — (include information on repairs made prior to testing, and recommended follow-up for failed tests) SENSOR FUNCTIONALITY WAS NOT CONFIRMED. THIS PROCEDURE IS NOT A PART OF SB989 TESTING. ' Secondary containment systems where the continuous monitoring automatically monitors both the primary and secondary containment, such as systems that are hydrostatically monitored or under constant vacuum, are exempt from periodic containment testing. {California Code of Regulations, Title 23, Section 2637(a)(6))