PCB analysis response letter, STL Edison, Mar 2002

NYC 9/11 Public Portal Document 1^002/005 . , 04 fAA 732 54t) 3679 STL EDISON

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STI Edison March 6, 2002 777 Nm Dtrham Road Ellison, MJ 08817 Mr. John Donohoe Tel; 732-549-3900 Moretrench American Corporation Fee 732-549-3679 100 Stickle Avenue wWw.sUTnt;.CQm Rockaway, NJ 07866

Dear Mr. Donohoe:

In response to yow fax of March 1, 2002, requesting additional analyses, STL Edison offers the following infonnatioii.

PCS analysis was requested by EPA Method 608 with a method detection limit (MDL) of 0.065 parts per billion (ppb). We analyze PCBs by that method with MDl.S of 0.2 to 0.5 ppb. (See enclosed list.) An MDL of 0.065 parts per billion for Arcelor 1242 only is included in 40 CFR, Part 136, Appendix A, Method 608. This method was originally publidied in The Federal Register, Volume 49, Number 209, on Friday, October 26, 1984. MDLS for other Aroclorra are undetermined in that publication. However, an MDL of Q.065 parts per billion for Aroclor 1242 was achieved on de-ionized water under ideal analytical conditions and should not be extrapolated to real world analysis.

Analysis for Chlorofluoromethane was also requested. This is not a compound we have previously analyzed for in eavwonmental samples. We do not have a standard for it nor can we locate a supplier for one. We would not be able to quantify this compound unless supplied with a standard. The samples we have received to date contain ChloTodifluoroinethane, which is also a Chlorofluorocarbon with similar industrial uses. We do have a standard for that compound and we would be happy to add that to the list of Vol^le Organics we are presently reporting. Sincej^y,

Urban Laboratory Mauagea*

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