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i <br />• ~ i <br />is maintained as the pit is developed in an easterly direction <br />depth to be mined will be about 50 to 70 feet below the existi <br />ridge will essentially be removed). Care will be taken to pre <br />sightly down-slope spoiling of material along the edges of the <br />working the aggregate back away from the crest of the deposit. <br />Based on the current demand for aggreagate, it is estimat <br />life of the operation will be about 10 years. <br />The maximum <br />floor (the <br />nt the un- <br />errace by <br />that the <br />