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PEURP1200 - 17 <br /> APPENDIX A4 <br /> CONTAINMENT T1 N So So 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 /> / 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 120over 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 1 ( ' dia, tanks). <br /> 9. Measure and record liquid level in reservoir riser pipe. <br /> 1 DA. 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 # 10B). <br /> Results Interpretation - The calculated changes (lines 11 A, i l B, and 11 C) must meet all of the 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 if. . . <br /> Line 911A Less than 1 ' More than 1 ' *** <br /> Line # 11 B and less than 10" or more than 10" ** <br /> Line #11 C and less than 600 gallons or more than 600 gallons *** <br /> Youcan 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 to; Max capacity 30,000 gallons Date <br /> ** Repeat test steps 611 <br /> ***To Improve test accuracy, discontinue dispensing, then repeat test steps 6-11 <br /> Note: A 99.9% 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 1 Conroe, TX 77304 • (936) 756.7731 • w,wrcontainmentsolullons.com <br /> Copyright ® 2017 Containment Solutions, Ino. * All Rights Reserved • January 2017 • Pub. No. FS 14012B <br /> pei .org <br />