1GNIFICANT INCIDENT REPORT This forts is t be used for first notice reporting f all incidents Involving pr cess upsets, near miss accidents (no Injury) and chemical r leases of a nature deemed t be significant.

VCM PERSONAL MONITORING LOCATION P~Lirio)AJG,TOM nPlQyee ID.-.ftEgiwMj.

o 2-7 NAME: Acetaldhyde 1,1 Dimethyhydrazone FORMULA: -<CH3)2 N-NCHGHj MOLECULAR: 86 30ILING POINT: VAPOR PRESSURE: FREEZING POINT: LIQUID DENSITY: RELATIVE VAPOR DENSITY: FLASH POINT: EXPLOSIVE LIMITS: MAXIMUM ALLOWABLE CONCENTRATION: DETECTABLE ODOR CONC.: KA2ARD0US PROPERTIES: ADH is poisonous.

July 30, 1991 Dow U.S.A The Dow Chemical Company P 0 Box 400 Plaauemine Louisiana 70765-0400 Chip Troxclair CA 2 Bldg. 3601 cc: Art Royals, 3502W Kevin Johnson, 3601 REACTIVE CHEMICALS REVIEW - JULY 25, 1991 Chlor-Alkali 2 Plant - 2 Year Process Review Project Rep: Chip Troxclair Committee members present: Mark Mitchell, John Monroe, Brian Witt, Buck Bailey, Alan Sandow (for Steve Milligan), Gerald Wagener Concerns: 1.

0 3 c*f>''-9 OFNTTAV.

Industrial Hygiene Audit/Tour on 7/29/91 1) Electrical/Capital Planning Warehouse A) Contractor Lunchroom B) Electrician Shop Area 2) Welding Shop A) Carpenter' Area-* fi&f**M*i B) Welding Area 3) Material Warehouse A) SCBA Full Face Masks -fa B) PPE C) Asbestos Gasket Storage D) Respirator Cleaning Station E) Contractor Lunchroom F) Restroom G) EDO Shop H) Solvent Cleaning Area !

~lcsc T. /7tew '.ffLtv-,Q?

HEARING CONSERVATION ---------------------------------------------- o---------------------------------------------- A Guide to Preventing Hearing Loss oo IT'S TO NOISY TO THINK!

JpMt Ordr 060S i 11 1.

R*pat Ordmr COEDS &Cara Type E39*0 Vista Chamical Company VISIA*08/20/89 Total No.

n0<EIMCn^gD.

S7^r/7 7 75: /tot Swy- Tfrt ftu*** 577E7VS Ae/>*#r$ fyiL I/CM (emAu*fMC $c/tt40iS At 7 CtM/AiS t/A s&r~ #0*J #0 U/ $7**0 4* 77Trs 7" ** A&e lk$77htr of CMSnfvcrtau - t) ScivEvr-t (JtS-s'J Ctvr.

I -* M J 01 Acct NO HG-0713-S] Portable 02 Inv Data 4/9/641 THIS AH CONTROL 10i Action Code [ ] Hour/# t 10 1 03 County Harris ] Juriadlctlon [ 070 ] SS: AA[X ] IAt J DAI 04 Co Nob* Tenneeo Polymers, Inc, ]Fad Fac [ ) FA t 05 Fit Nana 1 PSD Fig ( J S02 t 06 Mall 1 Post Office Box 849 1 EFA Cla t 1 voc t 07 Mall 2 ] A1/A2 Ho( 1 t ][ 0B Mail: City Pasadena St Texas zip[ 77501 1 A2 SchYrt J t 1( 09 Location ] Fr Rg Fl[ 1 t 1 ( 10 Near City 11 Group 12 Mgr Naaa 19 C.