6.1.6 Hazardous substances include but not limited to:
(1) Solvents
(2) Cement
(3) Glues
(4) Lead-Cadmium
(5) Plaster
(6) Weed killer
(7) Bitumen
(8) Epoxy resins
(9) Fillers
(10) Brick dust
(11) Silica dust
(12) Isocyanates
(13) Toxic substances in the ground, e.g. PCBs. ( Chemicals found in the use of electrical equipment)