Document rpzjxXggJ5mV2mXX8nKJ5qnXv

'r. 1. ; v -'leek - X*0 *i u 0 - -ClILCiV/lIl Airline Hose Aquipncni Load-in-AIr Tests Dei? York Hew Tori* June 21, 2954 Dear Tan; Today* Dob Ddxipton and I ran several lead-in-air tests on the Jour lengths ox* air line hose picked up from Carl Hitchcock. 'diis will:supplement :rr/ previous ropoi't and confirn ny tele phone tall: with you following the tests. 1. kb took a cample oi` air through one length ox* the hose, using Job*s blower and it shoved between 10 and If -derograms. ke then '4 washed the hose with cold water. .1, first the water case out very dirty hut eventually cleaned out until the water appeared quite clean. The hose was then allowed to lie in the sun on the driveway Tor about 43 ruinates and another air sample taken* This tine it shoved a color strength oT nearly 23 rulcrogroats. T'o covered the outlet opening 'with several layors of duct Tiller ~ause but i:e still jet a readiiig between 20 and 25* 2 kre caroled the air passing through one length oT hose showing a bad break through the cuter covering exposing the ;:ictal wire *,x>ven into it. Jills showed about 20 xdcragrans. 3. h'e sampled the air through another Icsygbh oi* hose and it also showed about 20 xdcrograus. The hose tooted under items 2 and 3 were sent to. -Or. litmailer via express, collect. The length.ox* hose not tested and the two lengths tested tinder items 1 and 3 were in good condition and I would not have hesitated to approve them Tor tank cleaning use* The length of sendee of this hose is not definitely known but 1 will try to find cut this week. Two lengths of hose have been retained by rob to wait for instructions Tor their disposition. This will probably depend on wh.at Ur. i'iitsraillor Tinds and advises. ilri addition to the above report and a previous report from George 0*0onnell on a test he nado, we now have one frosi -Don Torsdick. Last Saturday, Don tested the hose in use by another tank deanirxg con tractor at the Gulf Oil Corporation plant in `Tiverton. Uiodo Island. lo reported1a x'oading off the scale of our lead-in-air analyzer. They were .going to wash tho hooo by circulating, soapy water with a yaixp fro;;; - . *1cc . funo ;:i. it ft a tub through the hose and bad: to the tub* It -would then ho thoroughly riushed with fresh wtaior. At this writing, I do not have a report Iron da on Iiis success in cleansing the hose. these throe isolated cases cannot bo coincidence and. contaminated trithiu the last i w or three weeks*- Also, it does not seem to tie that this can be lead v;e are picking up or i;c would have cone sick sen after breathing air tilth the indicated lead concentration for several hours. I hope v;e can determine rather speedily what this is that i;e are picking up and if it is lead, some rather protrrpi steps must be taken zo correct the situation throughout all legions. dory truly pours, h. J.halchaln /< 0010480