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L TEIXEIRA-SOUZA PROPERTY Page 5 WKA No. 5475.03 June 2, 2003 The Bee reported that the study"tips the scale"in that debate toward the conclusion that powerline EMFs"are not a major, and probably not even a minor, component to the cause of cancer," according to the head of NCI's outside advisory committee. Mr. Norton indicated PG&E's position is that"prudent avoidance" should be implemented when one believes that EMFs are a threat to human health, and is contemplating construction or activities within a close proximity to high- voltage electrical transmission lines. ._ Regarding EMFs on the subject property, we have also included below the Conclusions section out of the Executive Summary from the May 1999 National Institutes of Health(NIH),National �- Institute of Environmental Health Sciences(NIEHS) "Report on Health Effects from Exposure to Powerline Frequency EMFs,"NIH Publication No. 99-4493. We did not review the entire report nor was the body of the report readily available for us to review. The NIH report is excerpted as follows: "The scientific evidence suggesting that EMF exposures pose any health risk is weak. The strongest evidence for health effects comes from associations observed in human 6' populations with two forms of cancer: childhood leukemia and chronic lymphocytic leukemia in occupationally exposed adults. While the support from individual studies is �. weak,the epidemiological studies demonstrate for some methods of measuring exposure, a fairly consistent pattern of a small, increased risk with increasing exposure that is ` somewhat weaker for chronic lymphocytic leukemia than for childhood leukemia. In contrast, the mechanistic studies and the animal toxicology literature fail to demonstrate Lany consistent pattern across studies although sporadic findings of biological effects (including increased cancers in animals)have been reported. No indication of increased leukemias in experimental animals has been observed. "The lack of connection between the human data and experimental data(animal and mechanistic) severely complicates the interpretation of these results. The human data are in the `right' species, are tied to `real-life' exposures and show some consistency that is i difficult to ignore. i WALLACE•KUHL &ASSOCIATES INC.