Document LJpRMg8aN9jJxpJZRbYx7gwYz

An emission of 7000 + lbs. of vinyl chloride occurred on October 1, 1974, at about 2:15 a.m. This is the largest emission of which we have knowledge of during the 1967 - 1975 period. Ten samples were taken to determine the effect and persistency of vinyl chloride in the community as a result of this release. Time Sample Station Type Sample VCM Cone. ppmv 7:36 a.m. 7:36 a.m. 11:55 a.m. No. Chas. Fire Station No. Chas. Fire Station Grab Carbon tube <0.05 <0.05 7:50 a.m. No. 8* Grab 0.2 7:50 a.m. 11:55 a.m. No. 8* Carbon Tube <0.05 8:11 a.m. No. 9* Grab 0.1 8:11 a.m. 12 Noon No. 9* Carbon Tube <0.05 8:25 a.m. No. 10* Grab <0.05 8:25 a.m. 12:15 p.m. No. 10* Carbon Tube NA 8:45 a.m. No. 3* Grab <0.05 8:45 a.m. 12:15 p.m. No. 3* Carbon Tube <0.05 Weather conditions at the time of the incident: Temperature Humidity Wind - Calm Other 40 F? 85% Out of the SW Pog Condition The emission occurred at a facility on Blaine Island, where all vinyl chloride consuming units are located. Virtually all abnormal vinyl chloride emissions have occurred at facilities located on Blaine Island. Consult the attached map. yCC 104045 "(c) Any meteorological data that your plant has that was taken by your personnel during the same time at your facility m South Charleston. It would be particularly helpful if this particular information had already been reduced to wind roses." The following section is a summary of the requested data. UCC 104046 Data Base: April 21, 1965 through March 31, 1966 Data from an aerovane located on our office building in South Charleston (inoperable since 1973) are used in the Figure B-12 wind roses. Calm winds have been distributed among, the 1-3 mile per hour groups of the 8 point wind record. UCC 104047