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S WRCB,January 2002 Page_of_ <br /> 4. TANK ANNULAR TESTING <br /> Test Method Developed By: x Tank Manufacturer U Industry Standard U Professional Engineer <br /> U Other(Specify) <br /> Test Method Used: U Pressure x Vacuum ❑Hydrostatic <br /> U Other(Spec) <br /> Test Equipment Used:Dwyer Manometer Equipment Resolution: 1-/-2% <br /> Tank# 1 Tank#2 Tank# 3 Tank# <br /> Is Tank Exempt From Testing?' U Yes x No U Yes x No U Yes x No U Yes []No <br /> Tank Capacity: 10,000 20,000 10,000 <br /> Tank Material: Fiberglass Fiberglass Fiberglass <br /> Tank Manufacturer: Xerxes Xerxes Xerxes <br /> Product Stored: Premium 91 Regular 87 Mid-Grad 89 <br /> Wait time between applying <br /> pressure/vacuum/water and 30 min 30 min 30 min 30 min <br /> starting test: <br /> Test Start Time: 11:05 12:25 1:50 <br /> Initial Reading(Ri): 7.40 7.38 8.00 <br /> Test End Time: 12:05 1:25 2:50 <br /> Final Reading(Rv): 7.06 7.31 7.42 <br /> Test Duration: 1 hour 1 hour I hour I hour <br /> Change in Reading(Rt-R): .34 .07 .58 <br /> Pass/Fail Threshold or Criteria: No less than 1" No less than 1" No less than 1" No less than I" <br /> Test Result: z Pass ❑Fall x Pass D Fail x Pass D Fail ❑ Pass ❑Fail <br /> Was sensor removed for testing? x Yes U No U NA x Yes U No U NA x Yes U No U NA x Yes U No ❑NA <br /> Was sensor properly replaced and x Yes U No U NA x Yes U No DNA x Yes U No ❑NA x Yes U No U NA <br /> verified functional after testing? <br /> Comments—(include information on repairs made prior to testing, and recommended follow-up for failed 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(ax6)) <br />