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sufficient to cover the pumping which will take place from the settling pond. The 20" culvert <br />will then discharge into a small ditch, as seen on Map C-2. The design for this small ditch can be <br />seen on Map C-4. The maximum carrying capacity of this ditch is approximately 30.6 cfs, which <br />will far exceed the needs of the water which will be discharge. The existing ditch which will be <br />the discharge point of the new ditch will have to be improved in order to handle the new amount <br />of water which it will carry. The design for this ditch is the same as the newly created ditch, and <br />can be seen on Map C-4. Finally, the existing 30" culvert which exists from this ditch will have <br />to be improved to a 36" culvert in order to have the capacity to handle the flow from the <br />improved ditch. Map C-4 shows the calculations for the final ditch, and shows that the ditch is <br />more than adequate to carry the additional capacity added by the dewatering of the Anderson Pit. <br />In order to dissipate energy as well as disperse flow, 4' boulders will be placed at the discharge <br />point of the 36" culvert in order to prevent any erosion from happening. Will Hutchins, who is <br />the property owner of the land which the two ditches are located as well as the discharge point, <br />has provided a letter stating that these improvements are beneficial to his ditches and farming far <br />after mining has ceased. This letter can be found in Appendix A. An NPDES permit will be <br />needed for the discharge. The permit application has been submitted. Initial discharge amounts <br />are expected to be around 4.0 million gallons per day and then aze expected to level off to 0.7 <br />million gallons per day after a couple of weeks of pumping and drawing down the local water <br />table. <br />Anderson Pit February OS D-3 <br />