Ngapara

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1	Information Sheet Number 15 March 2007 Add to Reading List Source URL: www.holcim.co.nz Language: English - Date: 2011-09-13 07:25:46 Energy Ngapara Coal mining Acid mine drainage Sewage treatment Coal Mining Ngapara and Tokarahi Branches Environment Waitaki District Pollution
2	PDF Document Add to Reading List Source URL: www.holcim.co.nz Language: English - Date: 2011-09-13 07:26:01 Architecture Visual arts Coal mining Portland cement Windsor Ontario Mining Sand Cement Ngapara and Tokarahi Branches Concrete Building materials Construction