Nevada Copper Corp NEVDQ

RE:RE:RE:RE:What doe this sentence mean?

[RockDoc1]

Good to see you on the board TTC.  I see your good comments on the Yahoo bb.  There are a few mean girls here that get intimidated when somebody has an interesting observation, rather than pumping the same old garbage.  Mom needs to send the kids outside more often.

The dyke/water issue concerns me a bit.  If this were a regular heading, it would be no big deal and would not warrant a comment in the production update.  Dyke/water usually means excessively poor ground rather than significant water flow.  I am speculating that they may have driven into the dyke in a key heading, like a ramp or a key raise.  It can be really hard to grout this off, and if they can grout it off, that doesn't fix the ugly ground.  They may have to live with the problem or back off and re-develop around the dyke.  This is not the first hint of ground problems in operations updates.  The Aug 2020, Oct 2020 and Nov 2020 updates mention weaker than expected ground with the need to "review of the costs associated with initially smaller stopes during the ramp-up period" (Nov 2020 update).  The decision to redesign smaller stopes before the first stope is cut is telling and concerning.  This should not happen.  It says that some key engineering data and work appear to be missing here.  Skarn deposits are known for variable ground conditions, including weak ulta-mafic dykes.  The good news is that they acknowledge that this is an issue only in the early stopes, with not hint that it is a life of mine issue.

From my experience, the vent problem is not an issue.  The vent network used for developing a mine is completely different than the vent network for a producing mine.  The producing mine needs a few times more cubic metres per second of air to deal with the stope blasting fumes and the additional prime movers (scoops and trucks).  To me, it looks like during development, the auxilliary shaft was the main fresh air source and was limited in airflow.  When the shaft work was completed in Dec 2020, they could start to use the main shaft as the intake, but the fans still had to be installed.  It takes several months to make the vent transition from development to production. 

I agree, I am pretty sure that the 5000 tpd production ramp up is directly tied to getting the production vent network (surface fans for the shaft) installed and operational.

RockDoc