The latest pictures appear to show that workers have used booms to set up a perimeter in the waters of the Mantua Creek to contain any chemical spill.
More top news
The four-time Olympic champion said on Twitter: "I am not afraid to tell my story anymore."
Social deprivation and suffering from prolonged health problems were the main factors inflating emergency department attendance.
The hills are likely to see the most snow, with blizzard conditions at times too.