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Peter Moleux, P. E. & Associates'' <br /> Environmental and Safety Consultants &Engin e-rsrN ( 0 <br /> 44 Wheeler Road <br /> Newton Centre, MA 02159-2656 U.S.A. <br /> Tel. #1 (617) 965 4920 Fax. #1 (617) 964 5072 <br /> February 4, 1994 <br /> OBSERVABLE TANK INSPECTION <br /> 1,Peter Moleux,have visually inspected the above ground high density crosslinked polyethylene(HDPE) <br /> and lined steel wastewater holding and treatment tanks located at Lika Corporation of 1443 Navy Drive <br /> iso Stockton,California. These tanks are all located on a 7,000 square foot containment area,with a roof, <br /> located.behind their printed circuit fabrication facility. Except for four tanks,all of the tanks were <br /> installed in 1985. In 1991,the three(3)HDPE above ground and cone bottom batch treatment tanks for <br /> ;xoless copper(tank labeled"C"),spent photoresist strip(tank labeled`B"),miscellaneous acid(tank <br /> labeled"A")and spent resist strip storage tank were added. My inspection took place on Friday,February <br /> 1994. <br /> I inspected the following above ground tanks: <br /> Tank Label Function Construction Volume <br /> Materials <br /> Waste Water Collection Cross Linked Polyethylene 8,500 Gal. <br /> :z� iron Filter 1 Activated Carbon Bed Epoxy Lined Steel Vessel 2,590 Gal. <br /> �3 iaon Filter 2 Activated Carbon Bed Epoxy Lined Steel Vessel 2,590 Gal. <br /> Waste Water Collection Cross Linked Polyethylene 1,500 Gal. <br /> :anon Bed 1 Deionization PVC Lined Steel Vessel 655 Gal. <br /> Anion Bed 1 Deionization PVC Lined Steel Vessel 1,130 Gal. <br /> Cation Bed 2 Deionization PVC Lined Steel Vessel 655 Gal. <br /> .Anion Bed 2 Deionization PVC Lined Steel Vessel 1,130 Gal. <br /> pH Adjustment tank Cross Linked Polyethylene 3,100 Gal. <br /> r6 Flocculation tank Cross Linked Polyethylene 1,050 Gal. <br /> LSA Clarifier Solids Separation PVC Lined Steel, approx. 2,800 Gal. <br /> 77 Final pH Adjustment Cross Linked Polyethylene 1,100 Gal. <br /> 8 Sludge Settling tank Cross Linked Polyethylene 4,000 Gal. <br /> f 11 Waste Water Collection Cross Linked Polyethylene 1,500 Gal. <br /> T14 DI Regenerate Collection Cross Linked Polyethylene 4,000 Gal. <br /> T15 DI Regenerate Collection Cross Linked Polyethylene 4,000 Gal. <br /> �;nd Tank(Trench) 1 Waste Water Collection Cross Linked Polyethylene 800 Gal.Each <br /> , d Tank(Trench)2 Waste Water Collection Cross Linked Polyethylene 800 Gal.Each <br /> Batch Tank A Misc.Acid Treatment Cross Linked Polyethylene 700 Gal. <br /> Batch Tank B Spent Photoresist Stripper Cross Linked Polyethylene 1,100 Gal. <br /> Batch Tank C Electroless Copper Bailout Cross Linked Polyethylene 1,100 Gal. <br /> Spent Resist Strip Tank Waste Storage Cross Linked Polyethylene 4,200 Gal. <br /> Spent Etch Collection Waste Collection Cross Linked Polyethylene 500 Gal. <br /> Spent Etch Storage Waste Storage Cross Linked Polyethylene 6,500 Gal. <br /> Fresh Etch Storage Chemical Storage Cross Linked polyethylene 6,500 Gal. <br /> 660Be Sulfuric Acid Raw Materials Storage Cross Linked Polyethylene 1,500 Gal. <br /> 20%Sulfuric Acid Raw Materials Storage Cross Linked Polyethylene 1,650 Gal. <br />