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CALIFORNIA TANK LINES, INC. <br />WASHRACK MAINTENANCE LOG <br />MONTH OF <br />DAILY <br />1 <br />2 <br />3 <br />-- <br />4 <br />-T- <br />5 <br />6 <br />7 <br />8 <br />T9 <br />10 <br />11] <br />121131114T151161 <br />117 <br />18 <br />19 <br />20121, <br />-�2 <br />22 <br />23124T25 <br />6 <br />27 <br />28 <br />29T <br />30 <br />3-�j <br />T <br />Check pumps for groper operation <br />Check caustic and acid tanks <br />Z <br />Check grease separator and flaw <br />-,2!2 <br />- <br />rate <br />i< <br />Y' <br />Check storage tanks and all piping <br />for leaks <br />2( <br />Ciean PH probes <br />Y <br />L111 <br />Check Safety Gear <br />" <br />Clean & Check all Eye Wash and <br />Safety Showers <br />Cleaned Containment Area <br />K-� <br />WEEKLY <br />I Clean grease separator <br />Calibrate Oxygen Monitor <br />Clean solids from PH adjusting <br />lank <br />�probes <br />Clear, & Calibrate PH - <br />Tuesday Thursday& Saturday <br />REPAIRS <br />COMMENTS <br />4% <br />METHOD OF CALIBRATING <br />STEP I Begin%,ith PH7 solution, <br />let probe remain in SOILItiOn for approximately 15 <br />minutes, or until <br />a stable reading is <br />Obtained. <br />STEP It Same as above with <br />P?14 solution. <br />STEP III Same as above with <br />PH 10 solution. <br />