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09/02/2005 FRI 8:39 FAX 9095946169 MJK CONSTRUCTION [002/003 <br />Secondaru Containment Test Procedures Sun West Engineering Constructors. Inc. <br />. . e 1 .; <br />a. Delineate area for testing and secure with safety barricades. <br />b. Open lid to interstitial space. <br />c. Remove interstitial space sensor, (disconnecting cable should not be <br />necessary) and protect from damage. <br />d. Install test adapter and connect to vacuum pump. <br />e. Connect the vacuum pump to the test gauge assembly and slowly <br />apply 10" hg. After establishing a stable vacuum of 10" hg. vacuum <br />with no decrease for one hour, maintain this vacuum for one <br />additional hour (two additional hours for tanks 20,000 -gallons or <br />greater). At the end of the test period if the vacuum reading does not <br />decrease below the established vacuum of 10" hg. the test is <br />complete. <br />f. Log all results on State Water Resources Control Board Secondary <br />Containment Testing Report Form. <br />g, If results indicate a failure: slowly release any remaining vacuum, <br />repair'- and retest. If after a second test, the tank does not hold a <br />vacuum, the test will be considered not liquid tight. <br />h. If results indicate a pass: slowly release vacuum and return system to <br />its original configuration. <br />2. PNEUMA'T'IC SECONDARY PIPING TEST <br />a. Delineate area for testing and secure with safety barricades. <br />b. Push test donut into compression seal at cuff or into bulkhead fitting. <br />c. Seal test donut to compression seal at cuff or to bulkhead fitting with <br />stainless steel clamp provided. Torque clamp 1 to 2 foot-pounds. <br />d. Pressurize secondary pipe with nitrogen to 5 psi, allow pressure to <br />stabilize for 1.0 minutes, and maintain pressure for 60 minutes. If <br />pressure is ina ntainea, hires are <br />e. Log all results on State Water Resources Control Board Secondary <br />Containment Testing Report Form. <br />f. If results indicate a failure: slowly release any remaining pressure, <br />repai' and retest. If after a second test, the piping does not hold <br />pressure, the test will be considered not liquid tight. <br />g. If results indicate a pass: slowly release pressure and loosen clamps <br />holding test donuts. Back off donuts. Note: Do not cut test donuts off <br />as they may be needed for future air pressure tests. <br />