Review of Interventions ____________ CanZinco Ltd.

5 Year Monitoring Issue raised Government of Nunavut (DoE), Environment Canada and INAC. Proponent in agreement but would request that NWB provide flexibility in the License for discretionary amendments to SNP

“Full suite” water quality parameters Issue raised by EC and INAC. New elements not previously monitored Including trace elements measured during operation that were at low or non- detectable concentrations Both EEM and Effluent Characterization sampling under MMER – identified parameters of no concern

“Full suite” water quality parameters CanZinco selected site specific parameters based on historic database which are considered to be ideal indicator elements with respect to potential toxicity and geochemical stability: Total cadmium, lead and zinc Major cations (calcium, magnesium, sodium, potassium, ammonia, and the derived parameter hardness) Major anions (chloride, sulphate, bicarbonate, carbonate, nitrate+nitrite, and the derived parameter alkalinity) TSS Specific conductivity (a surrogate for total dissolved solids) pH

Total Petroleum Hydrocarbon Analyses Issue raised by INAC and EC. INAC request for TPH at based on incorrect data in CanZinco submission Landfill: Water monitoring since 2003 shows TPH at lowest detectable levels CanZinco recommends continuing current Licence requirement to visibly inspect for “sheen” and sample for TPH when sheen is present

Retain station Issue raised by INAC: “it is applicable for assessing reclamation activity in the West Pit mining area”. Proponent: Retaining Station is downstream of the West Open Pit mining area (and the natural sulphide outcropping) and will continue to be monitored.

“Final Discharge” at and Issue raised by GN DOE. Proponent has significant issues with the designation of a sampling station as a final discharge point: A final discharge point defined as the final point of institutional control exercised over effluent water quality. This criterion applied to Station 159-4, the final outfall from the WTDA, during operation. At Stations and control has never been established. Natural effects may significantly impact water quality. Recommend they be monitored and reported but not classified as final discharge.

Contingency Plans Issue raised by GN DoE, EC and INAC. Comprehensive contingency plans have been identified for each of the major components of the Nanisivik Final Closure and Reclamation Plan (FCRP). Submitted to the NWB as Appendices to the FCRP, they were approved and are on file at the NWB registry. References appear below:

Contingency Plans Appendix A: Engineering Design of Reclamation Surface Covers Appendix B: Assessment of Surface Cell and Test Cell Taliks Appendix C: Quarry Development and Reclamation Plan Appendix E: Nanisivik Mine Rock Piles and Open Pits Closure Plan Appendix J: West Twin Disposal Area Closure Plan Appendix L: Nanisivik Mine Landfill Closure Plan

Reclamation of Tankfarm Issue raised by DFO, INAC, DoE CanZinco has made a final appeal to Minister’s level. Commitment to submit detailed reclamation plan and schedule for approval by September 30, 2009.