Document 2J95VmX63kK1MkeqE289VDEVp
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1. Detailed below is a complete tabulation of the data from the subject program. Although the survey ended April 28, 1972,
all the data was not reported until May 15, 1972.
2. It is significant to note that only 1 of 520 samples (or
0.19 of the total) exceeded the temporary tolerance of 2.5 ppm (fat basis) established for PCB's.
3. Total Samples Requested Total Samples Received % Total Samples Received Milk Samples Containing PCB's1' % Mllie Samples Containing PCB's
515 520 , 101.0 27
5.2
A breakdown of the sample results by bottling or manufacturing milk is as follows:
Bottling Milk Samples Requested
Bottling Milk Samples Received
% Bottling Milk Samples Received
Bottling Milk Samples Containing PCB's
% Bottling'Milk Samples Containing PCB's
Range of PCB Findings - Trace to 2.8 ppm
Sample Results (fat basis)
PCB
No. Samples
Levels
3T
1 T(0.49
ppm)
1 0.2 ppm
3 0.4 ppm 2 0.5 ppm
1 0.6 ppm
1 0.7 PPm
1 0.8 ppm
369 360
97.6 21
5.8
Aroclor 1254"
1254 1254 1254 1242, 1254 1254 1254 1254
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* No. Samples - ~2
1
2 1 1 1
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PCB Levels 1.0 ppm 1.4 ppm 1.49 ppm 1.6 ppm
1.9 ppm 2.8 ppm
Aroclor ""I554-
1254
1254 1254
1254 1254
Manufacturing Milk Samples Requested
Manufacturing Milk Samples Received Manufacturing Milk Samples Received Manufacturing Milk Samples Containing PCB's % Manufacturing Milk Samples Containing PCB's Range of PCB Findings - Trace to 1.8
Sample Results (fat basis)
146
160 109.6
6 3.8
No. Samples
PCB Levels
Aroclor
1
T(0.49 ppm)
1254
1
0.5 ppm
1254
1
0.7 ppm
1254
1
0.9 ppm
1254
1
1.3 ppm
1254
1
1.8 ppm
1254
The distribution of PCB's follows:
milk by FDA District is as
District No. Samples Containing PCB
BUP 1 BOS 1 DET 2 PHI 2 SKA 16
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"IBo
3.7 3.7 7.4 7.4
59-3 iuu.0
, 41
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4. C. F. Jelinek, Ph.D., Program Manager, Industrial Chemicals and Heavy Metals, reports that there is a question of the validity of the reported findings down to the levels given. Since the directive for the survey specifies methodology in which "the limit of detection for PCB residues in milk fat is approximately 1.5 PP (as Aroelor 1254) when using a 3 mg. sample injection and EC-QLC operated at the above conditions." He states that if some of the analysts used a large sample size, the lower values reported would have more validity, but this could only be determined by a more detailed examination of all the data. He also Indicates that the findings of Seattle District merit further investigation. Seattle reported PCB's in 16 (or 7S%) of 21 samples examined. On the other hand, the other Districts reported PCB's in only 11 (or 2.2j<) of the 499 samples examined. Either Seattle has a very wide spread problem of PCB contamination of milk which should be
looked into, or their reported findings need some other explanation.
5. A copy of the Compliance Program, Survey: Polychlorinated Biphenyls in Milk is enclosed for your review.
6. If we can be of any further assistance, please let us know.
Enalosure
cc: CC-4 (Vessel) BP-420 (Jellnek) BP-300 RF BP-320 RF BF-323 (FT,DDT)
DDTolen: vem 5/16/72
Virgil 0. Wodlcka
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