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Limitations on the Results <br /> The performance estimates above are only valid when: <br /> • The liquid in the reservoir must be at least 12 inches above the water table, <br /> if present so that groundwater cannot enter the interstitial space. <br /> • The method has not been substantially changed. <br /> • The vendor's instructions for using the method are followed. <br /> • The maximum line length for this system is 300 feet with a primary pipe <br /> size of 2 inches in diameter. <br /> • The sensor spacing must be at least 11.6 inches. <br /> If this method is affected by other sources of interference, list these interferences <br /> below and give the ranges of conditions under which the evaluation was done. (Check <br /> None if not applicable.) <br /> ( ) None <br /> Interferences Range of Test Conditions <br /> High water table Brine level in the reservoir must be at <br /> at least 12 inches above the water table <br /> Maintenance requirements specified by the vendor or determined during testing: <br /> Check sensors annually to verify proper operation <br /> Check to verify interstice is open by flushing a small amount of brine <br /> through the interstice. <br /> > Safety disclaimer: This test procedure only addresses the issue of the <br /> method's ability to detect leaks. It does not test the equipment for safety <br /> hazards. <br /> Certification of Results <br /> I certify that the liquid filled interstitial test testing method was installed and operated <br /> according to the vendor's instructions. I also certify that the evaluation was performed <br /> according to the alternative EPA test procedure for Liquid Filled Interstitial Methods for <br /> Pipeline Leak Detection, and that the results presented above are those obtained <br /> during the evaluation. <br /> H. Kendall Wilcox Ken Wilcox Associates, Inc. <br /> (printed name) (organization performing evaluation) <br /> Grain Valley, MO 64029 <br /> (signature) (city, state. zip) <br /> April 9, 2003 (816) 443-2494 <br /> (date) (phone number) <br /> Liquid Filled Interstitial Monitoring— Results Forms Page 4 of 4 <br />