environment ,L < < r . // L c ,v- <+ V \ si ,v f PVC WORKERS use respirators with airhose attachments to keep exposure to VCM below 1 ppm.

"1 INTERNAL CORRESPONDENCE CHEMICALS AND PLASTICS COMPANY SVR Chief Operators/Operators SVR Shift Prod.

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INTERNAL CORRESPONDENCE UC 149- 2 CHEMICALS AND PLASTICS to (name) Mr.

INTERNAL CORRESPONDENCE /e ^/J> CHEMICALS AND PLASTICS * to (Name) Division Location Copy to See Attached Distribution P.

UNTON CARBIDE CORPORATION From: A.

ITS*I ON CARBIDE CORPORATION Chemicals & Plastics 270 Park Avenue, New York, New York 10017 To: (See Attached Distribution List) Date: July 29, 1974 From: Dr.

Telephone Conversation Abe Ferdas (EPA Region III Philadelphia) to J.

DOW CHEMICAL U.S.A.

COMPOUND: ' Polyethylene (Dust or pellets) EXPOSURE GUIDELINE: 10 mg/M5 - To avoid irritation to NOSE AND THROAT IN DUSTY ATMOSPHERES.

UNION CARBIDE CORPORATION DISPERSION PVC RESIN PROCESS DESCRIPTION OF PROCESS Union Carbide's Dispersion PVC process consists of four major sections - polymerization, unreacted monomer recovery, resin drying, and monomer storage.

Environmental Protection Department_______________________________ _____________________ South Charleston Plant " ^0 tt'1-'"'34 October 18, 1978 cc: R.

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REGISTERED MAIL SOUTH CHARLESTON PLANT UNION CARBIDE CORPORATION CHEMICALS AND PLASTICS P.O.