Document MBbBVk8587kzwVr80RKLVwXM

r/ionsciito tN ^ ' | Ni Hf 6 LOtAHON | E t S * Tucker - R&D Laboratories - South Second Street IWlilCT MCI , December 3, 1969 . AROCLOR - WILDLIFE , NCR WATER SAMPLES ee. M , W. Farrar - S . 2nd R. E . Keller - S. 2nd W. R. R1chard - GO E. P. Wheele r - GO TO C. Paton J. T. Garrett CONFIDENTIAL Sample No. ppm Aroclor 1242 Found 1 1063 2 485 3 96.4 4 27.7 5 9.5 6 20.0 7 6.1 8 1 .8 9 6.6 10 1.7 11 2.6 12 2.6 The electron capture fingerprints of the extracts from each sample do not show any Indication of biodegradation. The decrease In concentration observed Is probably the result of dilution and adsorp tl on of the Arocl or In the or 1 g.1 nal waste water as 11 moves from the NCR pi ant to the treatment facilities. However, It Is possible fiat the h 1 gh level of "fresh" Aroelor present has completely masked any degradation that might have occurred to Aroclor previously discharged. db Enclosure E. S. Tucker * HIV. 11*09 TRAN 022090 WATER PCB-SD0000009054