Document 0JZgzZgkGzx20vXRNnqyOw05V

Vista Chemical Company July 29, 1985 15990 N. Barker's Landing Rd. Post Office Box 19029 Houston,Texas 77224 Phone (713) 531-3200 res-, jet: XF:____ Sir Mr. Howard Runion Penn Run Corporation Gulf Lab Road P.0. Box 300 Cheswick, PA 15024 Dear Howard: I have reviewed our outside analytical needs with our manufacturing sites. We do very little analytical outside of the plants. Environmental needs include low level PCB analysis and GCMS analysis on wastewater streams. These are done on an as needed basis only and are by no means routine enough to quantify needs. Due to the nature of contaminants sampled in most of our industrial hygiene programs, our analytical is almost totally in-house. For example, methyl chloride, ethylene oxide, and vinyl chloride samples do not "travel" well and are done in-house to assure accuracy. Please keep me informed as your laboratory services develop and we would consider your lab for the analytical services we do need. Sincerely, ^ Thomas G. Grumbles, CXH Environmental Quality Manager ajo/007 VVV 000016771