Laserfiche WebLink
• C-4 shows the calculations for the final ditch, and shows that the ditch is more than adequate to <br />carry the additional capacity added by the dewatering of the Anderson Pit. When the flow <br />• <br />I• <br />exceeds 1000 gpm, 4' boulders will be placed at the dischazge point of the 36" culvert (or ditch) <br />in order to prevent any erosion from happening. Will Hutchins, who is the property owner of the <br />land where the two ditches are located as well as the dischazge point, has provided a letter stating <br />that these improvements are beneficial to his ditches and farming faz after mining has ceased. <br />This letter can be found in Appendix A. An NPDES permit has been obtained for the discharge. <br />Initial dischazge amounts aze expected to be around 1.0 million gallons per day and then aze <br />expected to level off to 0.4 million gallons per day after a couple of weeks of pumping and <br />drawing down the local water table. <br />Table D-2 <br />Permit Area Descri tion Acrea e <br />1. To soil Berm alon 1675 Road on western ed a 0.95 <br />2. To soil Berm alon 1800 Road on eastern ed e 0.47 <br />3. 100' Buffer to Hutchins Pro 2.90 <br />4. 50' Buffer azound remainin Pro Perimeter 14.70 <br />5. Gravel Access Road 1.11 <br />6. Concrete/As halt Batch Plant Area 13.46 <br />7. Minin Phase 1 17.64 <br />8. Minin Phase 2 20.60 <br />9. Minin Phase 3 13.82 <br />10. Minin Phase 4 26.16 <br />11. Minin Phase 5 22.26 <br />12. Minin Phase 6 11.80 <br />13. Minin Phase 7 17.96 <br />14. Minin Phase 8 16.30 <br />15. Minin Phase 9 18.47 <br />16. Minin Phase 10 20.54 <br />17. Minin Phase 11 25.48 <br />Total Permit Area 244.62 <br />Anderson Pit, Apri! 07 D-4 <br />