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MAR -30-99 TUE 06:29 PM ItRO COMPANIES INC FAX NO, 610461 3098 P. 04/07 <br />ATTACHMENT 2 <br />PROJECT DETAILS & <br />NA CE (RP0285-95) CATHODIC PROTECTION CRITERIA <br />DESCRIPTION: Cathodic Protection System Commissioning Survey <br />Two Steel Underground Storage Tanks <br />E.F, Kludt and Sons, 1126 East Pine Street, Lodi, CA 95241 <br />FROM CT DATES: <br />Surveyed: March, 1999 <br />Report: March, 1999 <br />PERSONNEL: <br />Field: Mr. Ron Hodgman, P_E, <br />Office: Mr. Ian Oakley, NACE Senior Corrosion Technologist <br />PURPOSE: <br />The purpose of the work performed was: <br />* To conduct a survey of the new cathodic protection system. <br />* To check the integrity of the components of the new cathodic protection system. <br />* To issue a report based on the results of the field survey, complete with <br />recommendations on future operation of the cathodic protection system as <br />required. <br />is+iTFRIA <br />Cathodic protection is the method of mitigating the natural electrochemical corrosion <br />process which takes place on buried metallic structures in an electrolyte such as soil, The <br />direct cut -rent applied to the structure from either sacrificial anodes or powered anodes <br />counteracts the natural corrosion current flow. The amount of current required is <br />dependent primarily on the amount of structure surface area of metal exposed to the <br />electrolyte and the composition of the electrolyte and structure environment. <br />1 <br />