Atlantic Packaging Ltd. Paper Fibre Biosolids and Sound-Sorb Berm, Oshawa Skeet and Gun Club: Results of Chemical and Microbiological Testing (June 2002),
ADDENDUM

4277e_addendum

Erroneous units of measurement were inadvertently provided with the analytical testing report for acrylamide. The units of measurement for acrylamide monomer in Table 3 should read µg/g. In the body of the report, the second sentence of the last paragraph, p. 33, should read:

“Only one sample of fresh Atlantic Packaging PFB was tested for acrylamide monomer and it was found at a concentration of 9 µg/g (9000 ng/g) dry weight. All berm samples were tested and it was detected in only one of the samples at a level of 0.36 µg/g (360 ng/g) dry weight.”

The corrected data still indicate non-detectable amounts (< 0.1 µg/g) of acrylamide monomer in all but one of the Sound-Sorb berm samples.

The corrected acrylamide monomer concentrations are still considered low and do not change the conclusions drawn or recommendations made in the report. Given that soil contaminated site guidelines have not been developed for acrylamide, acrylamide monomer will be included in the suite of parameters measured on samples from test wells recently installed at the Oshawa Skeet and Gun Club. Moreover, the human and ecological health risk assessment, originally recommended to address the high levels of total petroleum hydrocarbons, will also include an assessment of risk associated with acrylamide levels in fresh paper fibre biosolids and the Sound-Sorb berm.

Recently, acrylamide monomer was measured in samples from the Sound-Sorb berm at the East Elgin Sportsman’s Association near Aylmer, Ontario, and from a load of paper fibre biosolids delivered to the Aylmer site from Atlantic Packaging Ltd. Acrylamide concentrations were less than or equal to the method detection limit of 0.1 µg/g in all samples.

January 2003