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PEI/RP1200-17 <br /> APPENDIX A-1 <br /> CSO ONTAIN0ENS. HYDROSTATIC STAND PIPE TANKTEST CHECKLIST <br /> Job Name. <br /> Address: City: State: <br /> / Record date/time when tank was last filled(wait 24 hours from last delivery) <br /> 1 Record today's date/time <br /> Record tank U.L.number(if known) <br /> Product stored <br /> Tank nominal capacity(gallons)* <br /> Preparation: <br /> 1.Measure and record groundwater table level. <br /> 2.Fill reservoir riser pipe approximately 12"over reservoir top.The level <br /> in the riser pipe must be at least 12"higher than the groundwater table. <br /> 3.Diameter of reservoir riser pipe. <br /> 4.Inspect all exposed monitoring fitting plugs for leaks. <br /> Begin test: <br /> 5.Record time(wait 3 hours after step#2), <br /> 6.Measure and record liquid level In reservoir riser pipe. <br /> 7A.Measure and record groundwater table level. <br /> 7B.Record dispenser meter readings. <br /> 8.Record time(after steps#6 and#7,wait 4 hrs for 4,6 8'tanks or 6 hrs for 10'dia.tanks). <br /> 9.Measure and record liquid level in reservoir riser pipe. <br /> 1OA.Measure and record groundwater table level. <br /> 1OB.Record dispenser meter reading. <br /> End test: <br /> Calculate changes: <br /> 11 A.Reservoir riser pipe level(step#6 minus step#9). <br /> 11 B.Groundwater level(step#7 minus step#10A). <br /> 11C.Dispensed product(step#7 minus step#1 OB). <br /> Results Interpretation-The calculated changes(lines 11 A,11 B,and 11 C)must meet all ofthe criteria In column"B'below to pass the <br /> tightness test of.05 gallons per hour with a 95%probability of detection and a 5%probability of false alarm: <br /> (A) (B) (C) <br /> Criteria Tank passes test if... Tank test is Inconclusive ff... <br /> Line#11 A Less than 1" More than I— <br /> Line#118 and less than 10" or more than 10" <br /> Line#11 C and less than 600 gallons or more than 600 gallons <br /> You can use a tape measure and water/brine finding paste to determine accurate liquid <br /> levels in site wells and the reservoir. <br /> *Max tank diameter 10:Max capacity 30,000 gallons Date <br /> Repeat test steps 6-11 <br /> -To Improve test accuracy,discontinue dispensing,then repeat test steps 6-11 <br /> Note:A99.996 PD and 1.2%PFA tightness test without dispensing Is available by Technician's Name <br /> contacting CSI Field Service <br /> 333 North Rivershire Dr.,Suite 190-Conroe,TX 77304•(936)756.7731•www.containmentsoluuons.com <br /> Copyright®2017 Containment Solutions,Inc.•All Rights Reserved•January 2017•Pub.No.FS 140128 <br /> pei.org <br />