Below of references dealing with ground current.
Havas, M. 2007. “Stray Voltage” Ground Current Problems, Prepared for Ontario Energy Board Panel on Stray Voltage, November 22, 2007.
Anon. 2006. Ground Current Pollution Act, 2006. Mpp2006.080.e5-CW, Private Member’s Bill, First Reading October 3, 2006. Helped draft Private Member’s Bill on Ground Current Pollution. Click here for pdf.