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15 August 2000 AGE -NC Project No. 96-0232 Page 2 of 3 Both CPTT and Tanknology recommended a standard pressure test as the best alternative for evaluating the integrity of the primary product lines and a helium test to evaluate the integrity of the secondary product line. On 03 August 2000, AGE met with Mr. Richard Bokides and Mr. Navtej Dhingsai to discuss the above mentioned CRWQCB-CVR and PHS-EHD directive letters. It was decided that the CRWQCB-CVR and PHS-EHD directives would be satisfied by performing the above mentioned tracer test on the product lines and by collecting soil samples directly beneath the fuel dispensers. On 07 August 2000, AGE contacted Mr. Michael Kith of the PHS-EHD by telephone to see if the PHS-EHD had issued the directive letter for "helium tracer testing" as stated above. Mr. Kith stated he was not aware if the directive letter had been mailed out; he further stated that AGE should write a letter request to the PHS-EHD for the proposed product line testing so that he could confer with his supervisor, Ms. Kasey Foley. On 07 August 2000, AGE recommended by letter to the PHS-EHD (Appendix A) that a standard pressure test be performed on each primary product line to satisfy annual tank testing requirements and a helium tracer test performed only on the secondary product lines to satisfy the PHS-EHD and CRWQCB-CVR directives. In the letter, AGE stated that the "helium tracer test" was scheduled with CPTT for testing to commence on Thursday, 10 August 2000 at 7:00 A.M. On 10 August 2000, CPTT removed the side panels of each fuel dispenser for observation and soil sample collection; CPTT initiated "helium tracer testing" on each product line. During the tracer test, Mr. Kith notified AGE that a "helium tracer test" was not a State of California -certified precision test and would not satisfy the PHS-EHD directive; a State of California -certified "Tracer Tight Precision Test" would be necessary to satisfy the PHS- EHD directive. Furthermore, approximately 4 to 5 feet of pea -gravel backfill material was encountered beneath each fuel dispenser and AGE was unable to collect soil samples through the pea -gravel. Therefore, AGE discontinued the "helium tracer test" and all fuel dispenser soil sampling efforts. On 14 August 2000, AGE was notified by Mr. Doug Wilson by telephone that a State of California -certified "Enhanced Tracer Tight Precision Test " with leak detection capabilities of 0.005 gallons per hour was required to satisfy the PHS-EHD. Furthermore, AGE has been informed that only one precision testing company in the United States was State of California -certified to perform the above mentioned testing (Tracer Research Corporation, Tucson, Arizona). On 14 August 2000, AGE contacted Mr. Ian Harris of the Tracer Research Corporation to schedule an "Enhanced Tracer Tight Precision Test". Mr. Harris indicated he did not have Advanced GeoEnvironmental, Inc.