Document YDGBk2nEMLvggVxe67x1QqGGy

June 1, 1959 K' Hr. Mil Hancock Ethyl Corporation 901 Russ Building 235 Montgomery Street San Francisco 4, California Bear* Mils. . . . Attached is a listing of the results for the raillipore filters which I premised, during ray last visit, to send to you. We have now completed all of the analyses of the environmental samples collected during Phase I and are engaged In summarising the data In preparation, for writing- a report. thanks for the print of the Yellow Cab facility and for the notes. If you have any other notes referring to operations of Phase I, I tiould appreciate having them since they would be useful in preparing our report. .. ' ''. " . . I have no suggestions other than those which we discussed during ray visit, but I want to impress upon you the importance of marking the tape of the A.I.S.I. each day. If you can't be at the Y.C. garage, perhaps you can have one of the Y.C. people mark a spot on the days that you miss. I hope that the additional help has relieved some of the pressures and that you will be able to cover areas in the garage other than the island. My visit to San Francisco is now definite. 1 expect to arrive during the early evening of June 17 (7*55 p.ra.} from Denver on UAL #531. Although, I am staying in San Francisco two days, one day must be spent on other business and therefore, I would suggest that the meeting with SOCAL be arranged for Thursday, June IS. I am traveling with an associate who has taken care of our hotel reserafcions so that John Eoehnle need not guarantee the reservation. Best regards, JCspn ccs Mr, J. F. Koehnle J. Cholak MlXiloore Filter Results Sample Number Phase I 28D 44o 52D 5%D 6m Mlcrograms Lead/ Cubic Foot of Air 0.05 0,45 0* 20 0 .1 2 0.23 Phase II TOD 75D 79 83D . . 9 1 . 92D . . 1000 . 10D .HOD ; ' 113B O.pO ` 0 .0 0 0.30 0 .7 0 No Sample 0 .1 5 . 0 .0 0 0 .4 0 0 .2 0 1 .3 0 O .60 !</" 0004074