2010-11-16_PERMIT FILE - C1996083A ‎(28)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 11/16/2010
• Section_Exhibit Name: Volume IIIA Exhibit 15 Subsidence Prediction
• Media Type: D
• Archive: Yes

• During 1984 the Somerset Mine developed entries beneath Hubbard Creek
and limited extraction to development only. The development resulted in an extraction ratio
of approximately 40%. Visual and survey monitoring did not detect any significant
subsidence caused by the mining beneath Hubbard Creek (ref. Permit C-81-022 - TR-03
with a decision date of December 30, 1986).
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