Document wgv3Ed2vZ0mR4Ge6jRBBeQJ4D

INOUOTP^ INTER-OFFICE CORRESPONDENCE October 8, 1974 From: Zeb G. Bell. Jr. Location: 19 East Subject: Vinylidene Chloride It appears from Les Allen's correspondence, dated February 18 and February 20, 1974, that these were recommendations to be considered for VDCM loading operations. Les informed me recently that the loading meter referred to in Item 2 of his February 18 letter has been received and is ready for installation. With reference to your note on cleaning of tank trucks, I discussed notifying the trucking companies of the information we received on the potential carcinogenic properties of VDCM with Joe Knott last week. He was to verbally inform the trucking companies of this new information. Zeb G. Bell, Jr.:, ZGB:mal cc: R. E. Widing L. S. Allen J. A. Clapperton L. B. Grant, M.D. J. F. Knott H. W. Rahn F. J. Trunzo M #C* * \ 9 ' 70 SL 092824 * 1. r, far;n r`rbn.i.1 y 2^ , ! >7 4 i io L . 1 ion 20 ioi h V*CM P~y*nJ to you* cor-tont* of oy k'ebr', e.y ] , i uuo: a rj * L 1. "IpcJ t-.p nc_ of Cho \DCi loading rrca is advisable as 1 -to fehabiUzatioi. of a clay bed covered with ahull hac failed twice due to the high wst-u table. i' 1. The lo-de.'s ate probably expose.' Lo less than i 1 ppi.: VX vaporu vitv'er exirt-rx. ;an.' ear loading conl'tiuns. This is * cloaed low I rtg s'/F'e* errec* our'?*: 'iacnnnect. fine* there is slr..ui t-.aneoi.s exposure to VC X vac v.-pera on the loading rack during actual conditions, in order lo confirm exposure :.ai,e Charier will hove to perform romtorlng during /* vy leading only. The leaders are probably exposed to higher than Id ppm V9C vaporft during per- i: ns of ha trie!, loading procedure. Tho raterlal teinperatvre and w.'uct comlrrlcns, of course, ore factors, t odificalions itirbcrs 2 and 2 -n ny i-'-ybrv ary 1: nemo would reduce exposure to that of bank car loading. *u airline -is.. r.ay be required to replace the loading done lid with the twe: lid. ' mother jyoss'bbj exposure with which ve ahould be concerned is that, reavli vng fror. cleaning of the empty tank by the trucking cor.pany on return frou the customer, iele Charles tray want to consider Jeconu> ina-lng ' the tan-< themselves or instruct the trucking company ae to possible hoxards. Since Hie levels of concern are so low, the -acor`agination by the plant would probably be pi qfnnrhlt-- 3. The entire original funds were not expanded, as I understand, bocause/ the design was adequate at the tire. ios lie S. ilien ii re-. .7. y vflour w/'ttech. ~2J' TV-^ CaJts ^X^e<x_ RECEIVED OCT 71974 MFG. OFot (-c A-- SL 092825 T. F, faryar February IP, l >74 . celio S. Mien 2n north voc This v* in answer to your question of what would be required `o load VDG. tank trucks during all weather conditions. I have discussed this question with Jin larleur, and wc have arrived at the following codif icetioni. to allow loading during precipitation. 1. 3lack 'op the VDC-; loading area. This would involve an area approxirjtaly 50' x 2 . Art tJhalen furnished an estimate of $6,70v including line stabilization of tha subgrada and 6'- of black. top compacted to 4". 2. A leading notar would alio* cloaed does Loading. An order of magnitude estimate would be 51,500. 3. construction of e dean lid would allow equalization of vapors frots the truck to the storage tank. the cost is approximately $300. 4. Installation of a roof section over the truck done would allcar final gauging, sampling, and inspection of the materiel. A rough ostimate for s roof which would serve its purpose during driving rain would be $4,000, Thus tha total 'estimate of facilities to allow loading during wet conditions would be approximately 912,500. because of the flammability of the material, loading during lightning would require a closed, positive pressure loading chad and a flare for venting. These additional facilities are probably outside the realm of justification. It should be noted that approximately $5,000 of the original funds for the construction of the loading reek were net need end wee returned. raetie s. Allen /a SL 092826