Document xzbnRKNVkDNB67jmOgR4emaxm

4+ > Monsanto ............... . ***' TO ` c.c. Writhe - Annieton, AUbim folWA:A; December 29, 1970 P.C.B. Levels In Ambient Air at Annl* too Plant v. 9. fapageorge " 1. T. Sail J. 1. Corner C. L. Jeeaee J. C, lendwehr P. S. Hodges - G.O. 'r`cJ?1 Hated below la cha data which ha a been collected to data on P.C.B. loaaea to cha atmosphere at Ann laton. These temples ware collactad primarily In cha ambient air ae each designated location. Dice Samollnc Location P.C.S. Concentration mc/m3 Comment* 11/5 Aroclor Still lee* .376 X 10*3 1 atlll on Arocloi 1242 11/6 Tank Car Loading Platfora .273 X 10*3 Loading Aroclor 1234 ear 11/6 Aroclor Still tsoe .0*3 X 10-* Raiding Aroclor 1242 In t3 Blend Tank 11/9 Tank Car Loading Plat form .244 X W3 Leading Aroclor 1242 Car 11/17 Tank Car Loading Plat- Xaaulta not available fora . loading Aroclor 1234 Car 11/17 Warehouse tcwalag Araa .373 X 10*3 Drumming Oue Aroelor 1242 I 11/23 Aroclor Still Room 1.061 X 10*3 Distilling Aroelor 1242 11/24 Koaear Hood * 9.430 X 10'3 9 r Drawing Aroclor 1242 Boc tool This data lndieataa that tha ablent air In tha Ann l a con Plane manufacturing l scat lone la canaldarahly lower than cha levela reportad by Monsanto at Hevport la September, 1970. Thla la probably because there ha* bean eery little manufacture of Liquid Aroclora at Anaiatoa durlnt eh la period. @7l EXHIBIT Ip ( Deponer)t_ WWW.DEPOBOOK.COJ 03W 014061 WATER PCB-SD0000046794 So** problems hsvs betn encountered In sampling end analysis et Anniston which eccoune to tome degree lor the lav velues. The prime tempting problem 1* the Inefficiency of the scrubbers et very high tempting volume*, (l.a. The ecrubber is not 1001 efficient et high elr flew rates}. A eolutlen to thle problem le being tested by going to e very lov flow rete end sampling for a longer tleie. Analysis hevc been delayed because of Che high priority which has bean eeslgned to the wsete water clean-up research. Plane are to continue stapling during January la en et tempt to gaeher mart reliable decs on P.C.B. loeeee to Che eteusphere. Thle date will be eeaenunlctced to you as soon as It can b obtained. Your comments regarding this will bo tpprsclsted. Eugene C. Wright Jv * 0S* 014062 WATER PCB-SD0000046795