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_ FROM P'E J WE`3T N-��V 10-1953 1018 TO 12095833282 P.23 System Operating Imt Mations E+ MCTM EnvironrrtettW MAIL19cment COW10le IML LN.;TI IL SAP+tAA uri a ruv a ��sV IMPORTANTY LrAK DETECT jMIyOE SMALL CAN CAUSE Sgt '(= �4 l,.L IG . Your leak deteAMOR program must be planted to comply with local, sta'ft and Ped ld be ed as Peart of ag un derFwad Storaage All W and leak test records Provided by the EMC system with Gilbareds 0.2 OPH Capacitance probes, are Claastiied as sal Automatic Ta* Gauge 3Syystem,,ar d The EMC, when e�ttipped showed drat these system have been tltiz�d-patty' tested by Midwest Research Institut& The results of that testing of a 020 gallon per hour leak exceeding a 95ci6 probability of detection IP(D)1 and a 596 probability of false starnl hour at Therefore this sys Wmeetsa the ped pedormancce e Federal pedormance standarddards eof stablished in water in the bottom 0.20 of a tatons s � nem � it�ti.'� (P(FA)I �? The EMC, whetn 600pedwith Gubareo's 0.1 GpH Capacitance and/or (;gbareo's 0.1 GPH Magaetosttictive probes, meets $be standard for a Vona ble Tank lightness Testing Method and has barest thlrOarty tested by Midwest RwAuvh In titobability results; of this slowed that the system was capable of detecting a 0.10 glllonon er hour ��leak the o � of detection (P(u)) and at 1% probability of false alarm JP(PA)J. Therefore, standar by the U.S. E.P„A. (0.10 gallon`s per hour at (P(D)1 of 95% and (P(FA)1 of 596). Ih"RTANT: Information provided by EMC System should be used as part of a conscientious inventory control and teguletory compliance program, If routine inventory recondliation reveals a loss of product, vie the Leak Detect all iteral strata provide a mare All vdicati�entoreconciliationf product loss. records leakk tests must be conducted in weardance with tee reports should, as required, be saved .as and saved regulati documentation of eatnptiattoe with local, state and Federal UST regulations., Do not ezeavate tanks or take other ftmedial action batted solely on EMC Inventory or beak Test Iteportat THE EMC WILL FUNCTION ACCURATELY WITH VNIA CERTAIN APPROVED FLUIDS. L Inventory Control Good Inventory control practices are the Ust line of defense against the problems that can be caused by leaking underground tanks. The EMC system can, through their inventory reports, provide the required Information for stored products to help an operator accurately prepare inventory control records. The American Petroleum Institute publication, "Recommended Practice for Bulk Liquid Stock Control at Itetail Outlets; ' provides guidance to operators of underground tanks on the requirements for maintaining conUd of muss aeries. 2. Recommended Minimum In -Tank Leak Test Times To ensure accurate leak test results, the following test length guidelines should be adhered to. 1 SYSTEM ?EST f PROBE TYPE I M I K I TUMMC EMC 0.2 GPN 02 capadtattca 5 hours itsnice EMC 0 2 GPN 0.1 Mk netosttictive 2 hours f1V1C 0.1 GPIt 1 0.1 cap dhnoe I 3 hours I 0.1 Wgnetosftfive 3. Pre -Teat Conditions Following the inventory report. the system will print out, tank by tank, the tank number, product label and any pre- test conditlons in the tank that may affect test results. These conditions arra: ® Debvey mice errors Temperature out of range • Recent delivery • Tank level low ;, post Test Conditions During the leak detect test, the EMC again looks fot tank and equipment conditions that could invalidate or cause a false FAILURE reading. lbese conditions are: • Test mix error s Temperature change error • Segment out of range • Temperature out of range • Delivery mix error • Recent delivery • First hour error • Tank level low • Last hour error At the end of the test, which may be concluded by either depressing the leak detect button twice or by an automatic stop time, the system will produce a report which will indicate one of four conditions for each tank: pASSED — Volume change (if any) was less than 0.2 gallons per hour. FAILED — Volume change was greater than e/-0.2 gallons per hour and all test conditions were acceptable. INVALID — One or more test conditions was outside acceptable parameters and the volume change was greater than e/-0.2 gallons per hour. The tank number, product label and unacceptable condition(s) will be printed after the leak rate report. SHORT — Test duration was too short to yield valid teat results. The report will then show, by tank, any conditions that occured during the test which may have affected the test