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E <br />ARCO Products Company <br />Division <br />USED OIL TANK GAUGING 1-0ra <br />Facility .549" <br />City Zip <br />Tank Size (Gallons) Month <br />Initial:;' � <br />Arco. <br />Weekly Allowable Measurement Error: Monthly Allowable Measurement Error: <br />Inches Stick <br />Of Measurement <br />Date Time Water to 1/8 inch Gallons Variation <br />WFFK 1 <br />a <br />c <br />b <br />b <br />a..0=V <br />a <br />c <br />b <br />M -1:0W.' <br />• <br />Beginning measurement.. inuts shall occur within: previous <br />Subtract(b) Ending measurement. Taken at least 36 hours later than beginning measurement. <br />.: (b). Inficate If over (+) or short (-). <br />r • c divide by 4 to get monthly average variation. <br />If (c) or (d) is greater than the corresponding allowable measurement error, IMMEDIATELY call <br />ARCO Maintenance. <br />