Laserfiche WebLink
Piping System Underground to Divert certain waters to the Virginius Workings <br />As of the 1St quarter of 2015, Fortune Revenue is planning on the pumping of water from the <br />Yellow Rose Drift and the Atlas /Cumberland Drift back to the #1 shaft. <br />The plan is to install two small sumps in the Yellow Rose Drift where the water from the drift <br />will be allowed to accumulate and filter out solids. One sump will be for dirty water which will <br />feed a second sump for clean water which will pump the water into a 6" HDPE pipe. The <br />Yellow Rose sumps are expected to be approximately 2000 gallons each in size. The HDPE pipe <br />will be hung in the main Revenue drift and the water will be pumped uphill at the 1% grade until <br />the Atlas /Cumberland intersection is reached. The portion of the pipe from Yellow Rose up to <br />the Atlas Cumberland intersection is designed for 300 gallons per minute although the existing <br />flows are much lower. At this location, an existing coffer dam/sump will also collect water from <br />these two drifts and a sump pump will add this water to the HDPE line through a tee and a <br />backflow preventer. This coffer dam/sump holds a capacity of approximately 500 gallons. The <br />flow rate from the Atlas /Cumberland is based on 200 gallons per minute. The pipe after this <br />intersection will continue uphill at I% grade and remain in a 6" diameter HDPE pipe. This pipe <br />is planned to end at the #1 shaft in the Virginius workings area, where the water will be allowed <br />to discharge directly into the shaft and seep into the ground. From past experience, this shaft has <br />been known to continually maintain a certain equilibrium level in the shaft. None of this water <br />makes its way to the surface given the distance to the portal (over 8000 feet) and the fact that the <br />area is under 1800+ feet of rock to the surface and is at the same level as the 550 level in the <br />mine. This water is very isolated from any surface water and the water will not result in a <br />discharge anywhere in the entire region. <br />Upon reclamation, this pumping system will be abandoned and left in the mine, therefore, no <br />bonding cost is needed. Once the mine shuts down, the water will flow back to the Revenue <br />portal by gravity, as it has done for over 100 years. The water will leave the portal and be <br />delivered to the Mine Water Pond, where it will discharge under the CDPHE discharge permit. <br />In order for Fortune Revenue to be released from this permit, the mine water leaving the mine <br />must meet the requirements of this permit after the mine is shut down. Fortune believes that this <br />will be the case since no new activity of breaking new ore will occur and the system will return <br />