Sunday, November 29, 2020

I have hand delivered copies of this map to TAG members last spring. The front of the map is in colour and is approximately 8 1/2 inches by 17 inches in size. The front of the document (map) has all the ground surface elevation lines (i.e. topographical contour lines) clearly marked in metres above sea level (masl). The back of the document (map) has on the left side a Conestoga Rovers & Assoc. map from their "DNAPL Investigation Work Plan" report dated Nov. 2006. This map is but one of many recognized sources such as MOE, GRCA, CRA, Reg. of Waterloo showing topographical contour lines. The right side is an Index explaining what the red and yellow arrows represent as well as explaining a few other items on the map. The yellow/orange arrows represent surface flow direction of water, wastewater, solvents and toxic liquid wastes from the east side pits (RPE 1-5). The red arrows (especially the larger red arrows) show low lying ground (like a large bowl) where hydrophobic compounds such as Dioxins/Furans, DDT likely settled out and bonded with soil particles.

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