Document RJrzZM4OqZL9oBraQNX4wEZEE

see i t, a. Bun<am a. ju qisoh July 8, 1970 Hr, 1, d* Jenkins Vice president* Xatari.! Sprague Heotrio Company Horth Ad4a> HaasachuaettS 012*7 Sear hr* Jenidnat - ' X was fortunately able to rlait your Brown St* Plant on Juno 17 with P-andall Crshaa* 2 personally found the discussion informative and latareaftiag and 2 wu aoat favorably laprcaeed with the concern, end intorest expressed by your anageaent parscnnel* Ve discussed briefly *coe of the points raised in your letter dated June 11* Z will try m this letter to be sore apeeino. Soderredability - Biodegradation studies conducted our "research latoratoriee In St* Louis, Missouri and la Ituabcn, Velea using aedla consisting or local river waters or activated sludges aeclloated to biphenyl five ditto* evidence that the lower chlorinated biphenyl* are atTeoted. 'Caere in aoao evidence that chlorine petition on the biphenyl configuration dooa influence the decree of distraction by the eicroergsttlaa** I hare eaeloaed a tabulation frea our Xsabcn laboratory thloh attempt* to ahem this difference* Vo do not bare formal inforastlan regarding the effect of sunlight or Other natural lnflueneee on Areolar** Brperiance sained oyer eanr yearn indicate* Areolors mr* highly stable under all known conditions present la the environment. Toxicity - ttere la a^le evidence fpun easy laboratories taat certain sped** of birds Mich are at the top of the Barium food chain cannot reproduce properly bhen JC3*t art present in their diets* Hie 9 8* fisheries laboratory at Gulfbreese. Florida conduoted a study which indicated that Juvenile brute* shying did not currive in water containing 5 parts per billion of PCS. Attached are copies of reports on th*e studies. PLAINTIFF'S EXHIBIT Ml5 S TA CC*' 14 STLCOPCB4023565 -2- Monsanto sponsored boss studies oo laboratory rats and docs* A auacsary of the results to data " la attached* flapoaal - The preferred raethod for disposal la Ei^HtB^xirature Incineration* 2 suspect there are several coeaarcial burners on the waricet *nldx irtti perfort veil* 1 personally witnessed burning taste at the John Hale Cocpany** unit lawfulaa, Qklafcoea* fasguamturea oust exceed iSCCrf to assure that eooplste destruction is achieved* Love? teeper* aturts would only vaporise the Arafilers and create atmospheric pollution or, worse yet, would fere, by partial oxidation, eaterlain which could be highly teed* (e.g. faran* and dioxins)* VIth Incineration SCI Is foraad WUch soiat be scrubbed frta the atacic css end neutralised before disposal. We art planning for an initial Installation In one of our plants later this year* As a service to our quo toners who eay not have access to other Incinerator*, we have offered to accept scrap Arcelor for 1 mediate storage and eventual incineration* Tentatively, Soosaafco *111 charge 2# per pound of returned eaterLal. fills charge doas not include freight or container coats and sill be reviewed 'tiica final incineration costs ere established* Material which Is returned for disposal chould be addressed to Monsanto eoapasy, V, o* Crcmrlch 71snt, inaget, UliacU, Attentlcnt Supervisor Departaent 2b6* . 9 Solids contaslaafeed with Aroclors present a bigger challenge* As yet, ve here net tested an incinerator with these waterlal*. tihtll we get core InforBatioa the bast we can edvme Is safe burial In an authorised, properly operated land fill located away froa any We have laboratory mvk underway oo other force of deetraotion* ju yet no ecocoolcally feasible approach has beso M* Arolrtloal Methodology -* X have attached copies of nenssoso*# analytical procedures far the detenainatioo of PCS9* la water, soil, air end biological aaaples* Vo are interested In coopering our aetheds with those devised by other Laboratories. Any consents your laboratory Bay have would be welcome and appreciated* sm GG4C. STLCOPCB4023566 X bop* that th AboY information la ta jou. If l oan d of rurtbar sorvioa, plaa* let aa know. SlnatrtXy, V. 9. Ftp<aoT* Ittaagtqr ftiflxonawafl Control mi Hr* R. JOtsi* apnfctt* Oat*4 JL Ormba* ' - 7^ *% ** L , tSTLCOPCB4023567