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Truchekg Hydrostatic Monitoring System <br /> Tank-tightness testing How Truchek works <br /> Truchek provides two simple test options based on The interstice is factory-f illed with a brine solution: <br /> industry-accepted test criteria: This creates a small hydrostatic pressure on <br /> both tank walls <br /> Verif ied by U L as meeting EPA and NFPA 329 The brine solution level is monitored within a <br /> criteria reservoir on top of the tank <br /> Verified by the National Work Group on Any change in level—either up or down—is <br /> Leak Detection Evaluations(NWGLDE)as monitored and alarmed <br /> compliant with acceptable test protocols <br /> 10-hour test procedure <br /> (with tank not in use) Calibrated <br /> Truchek meets the strict NFPA 329 criteria and is Dipstick or Ruler <br /> capable of detecting liquid loss in the tank: For detailed Truchek <br /> testing instructions, <br /> At a rate of 0.05 U.S.gallons per hour refer to Truchek" <br /> Testing Instructions <br /> With a 99%probability of detection(PD) and Data Log. <br /> With a 1%probability of false alarm(PFA) <br /> 4-hour test procedure Monitoring Fluid <br /> (with product dispensing) in Standpipe <br /> (during test only) <br /> Truchek exceeds EPA's tank-tightness test criteria --- <br /> and is capable of detecting liquid loss in the tank: <br /> At a rate of 0.05 U.S.gallons per hour <br /> With a 95%probability of detection(PD) <br /> With a 5%probability of false alarm(PFA) jk <br /> Rvwmr 6MR&W Rvww�r <br /> tqvw Do� LowN Do" L&�w Up <br /> Um*in <br /> 57 <br /> PRMAJAI-TANA LFAA f&r0N0"1-T&NkC M" 51&C OWIDILAY-TANX LEAK <br /> IN WET HOLE OR DRY HOLE ON DIRY HOLE IN WFT Mom <br /> For over 45 years,Xerxes has designed and manufactured fiberglass underground storage tanks for fuel, <br /> water and wastewater.Xerxes'most recent expansion is its HydroChain-stormwater product line—highly <br /> engineered products with site-specific designs for stormwater management solutions.Xerxes is a key brand <br /> of Mattr,a global materials technology company serving critical infrastructure markets. <br /> FTRU0425 I xerxes.com I fuelsales@mattr.com <br /> 02025 Mattr Corp.All rights reserved. :�XERXES' <br />