Solid hazardous wastes

(1) The Chief Environmental Officer shall not approve the disposal of solid hazardous wastes, not otherwise prohibited from disposal in a landfill, unless the landfill is provided with at least– (a) two liners of which at least one is a synthetic liner; (b) a leachate collection and removal system; (c) a groundwater monitoring system; and (d) a leak detection system between the two liners. (2) The Chief Environmental Officer shall not approve the disposal of liquid hazardous wastes by means of deep well injection unless the following are met– (a) the fluids will be injected deep into the earth into brine saturated formation or non-fresh water zones of more than 10,000 mg/l TDS; (b) the depth of the well shall be no less than two thousand (2,000) feet; 304 Environmental Protection (c) assurances are provided to show that fluids injected into the deep sub-surface are likely to remain confined for a very long time; (d) the operator of the well can demonstrate that there are no transmissive fractures or faults in the confining rock layers through which injected fluids could travel towards drinking water sources; (e) the well casings prevent the bore hole from caving in, and are constructed of a corrosion resistant material such as steel or fiberglass- reinforced plastics; (f) in the instance of petroleum water, these must first receive pre-treatment so that the discharge of oil in water does not exceed 30 mg/1 or ppm; (g) a comprehensive monitoring and documentation programme is developed which has been approved by the Department; (h) proper monitoring and documentation of injection pressure and flow rate to ensure peak efficiency of the facility is conducted; (i) continuous monitoring of the pressurized annulus fluid around casings is conducted to detect possible leaks.