Document 10nZ88O3KNa6Y1R9eQapbBw0d

INTER-OFFICE CORRESPONDENCE Et h y l Ga s o l in e Co r p o r a t io n Se a t t l e Div is io n | 1411 Fo u r t h a v e n u e 1 i Se a t t l e , Wa s h in g t o n March 19, 1942, Memorandum to Dr. VJillard Mac hie - Dear Bill: I am attaching hereto copy of letter which I have written Marry regarding a condition existing at 3.0.Indiana - Gasper, I do not know whether or not this condition has been previously studied, or whether the results found by the local chemist indicate a definite hazard, I realize that a petroleum chemist has not had the exnerience in lead determination that your lab has and the results found may be far from accurate although believe that it does indicate a hazard may exist in the material which is found between the laps in the sheets, '.Yhile the tank is erect the cleaning can be practically perfect but nothing can be done to the lap until the tank is dismantled. In the dismantling the worker is on a scaffold and the rivets are "busted" from the inside with an air driven "rivet buster". Under these conditions the workers face is not more than 18" to 24" from the work. As this work is done by an outside contractor at a specified price, time is the main factor. Therefor I am afraid we will have quite a job on our hands to have these workers follow out recommended praotices for an unclean tank. I would appreciate your comments on this matter and if you- desire to visit the job I can arrange to hold up the dismantling until you arrive. Kindest personal regards. Very truly yours. -oh 1$, 10 ' o i Hr. Harry Kuhe Doar Harry: Standard Oil Co. of Indiana at Casper again started tte clowning of Tanks I'os. 37 and 33, which are of 05,000 barrels capacity, preparatory to dismantling same. The last two tanks which v/nro cleaned for dismantling at this refinery -rare iu the spring and wo were very fortunate in having muddy river water which carried a high percentage of solids, and, in fact was equivalent to a wot sandblast, Tith this method all sheets .rare clean to the point of absolutely no deposit remaining. The work on the two present tanks was scartod in Jan, of this year out had to La uiscoacinued because of freezing conditions. :le than decided to wait until spring when we would again Lave a muddy river. As the contractor is about ready for these tanks the management dccidod t'.ov could not wait until spring so have started tils week. (i'ho following data was obtained from the management confidentially since their recent instructions are to release no data without consent of their Chicago Office. I therefor would appreciate it if in did not pet buck to 3.C.Indiana at Chicago that we have obtained thi3 data.) The Chemist at unis refinery obtained sense rust from the sido sheets and analyzed sarao for lead, hi findings were negative although samples taken from the lap in the side sheets showed between .tot and .Abl lead. These figures are total load and*attempt was made to differentiate between organic and inorganic, for the benefit of our nodical Copt. I mi~ht mention that two door shoots wars removed iron each tank prior to entering for cleaning and it'was from those sheets that the sample was obtained from under the lap of the 3] I have reviewed Cr. Haohls's report and con find no mention of this condition and -would therefor apnreciato his comments on sane. As these doc sheets havs aeon off and weathered for about two nontr.a, I co not boliovo samples from sem would be representative at present. If our b.edicBl >pt. so desires I ct have another sheet removed and obtain a sample from sun for further analysis. Theso tanks are of riveted construction and the lapping of shoots arc caulked from the outside which will permit soopago between sheets from the inside. I ara forwarding a copy of this letter direct to 3r, 7ho sinoe they expect to dismantle ono of these tanks somotirao next week. K" 0022689 N22641.01 Very tr