Document NNaDw8vbDyenX4gzZrKRDKM78

PPG INDUSTRIES,INC. June 9, 1988 CHEMICALS P 0. BOX 1000 LAKE CHARLES, LA. 70602 Mr. Gus Von Bodungen Department of Environmental Quality Air Quality Division Office of Environmental Affairs P. O. Box 44096 Baton Rouge, LA 70804-4096 Dear Mr. Von Bodungen: Re: LESHAP VCM Quarterly Report In accordance with LESHAP requirements contained in 33:111 2561 of the Louisiana Administrative Code, PPG Industries' Lake Charles Complex submits the attached Quarterly Report for the period March 1, 1988, through May 31, 1988. This quarter the Complex did not experience any sudden discharges of vinyl chloride. Emissions in excess of 10 ppm (averaged on an hourly basis) in the stacks exiting the incinerators are listed in Exhibit I. Attached as Exhibit II is a record of emissions in excess of lo ppm which resulted from a temporary by-pass of incineration. An estimated 11.3 pounds of VCM were released as a result of this incident. Respectfully, Mark W. Wood Associate Research Chemist SL 026462 EXHIBIT I Continuous Stack Emission Results >10 ppm VCM Date Stack Mo. 5-26 88 #3 Incinerator * Hour Ending 1100 1200 1300 Hourly Average (ppm) 13.4 26.8 28.4 Comment All operating parameters were monitored and were within acceptable limits. No explanation could be found. SL 026463 Dat Time 3/21/88 0743-0813 * EXHIBIT II Non-Incineration of VCM Vents Sources Not Incinerated Estimated Quantity VCM Vented (lbs) Comment VCII 11.3 VC-II vents were being burned in the No. 4 Incinerator when the PLC (Programmable Logic Controller) for this part of the plant failed. As well as tripping out the incinerator, the vent header Control System failed "safe" to the scrubber. Manual valving and rerouting was accomplished after thirty (30) minutes. A new PLC was installed and normal operations resumed. Ul f 026464