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ANNUAL PRODUCTION <br />so,ooo <br />so,ooo <br />70,000 <br />so,ooo <br />z 50,000 <br />~ 40,000 <br />30,000 <br />20,000 <br />10,000 <br />1996 1997 1998 1999 2000 <br />YEAR <br />One method of determining the life of an operation is to evaluate the past demand for gravel <br />resources. By using the last five years of production, which averages 61,000 tons per year <br />at the FetcherNale Gravel Pit, in conjunction with the remaining resource, it is forecasted <br />that the gravel within the expanded area will be depleted in about 10 years. It should be <br />pointed out that forecasts are based on current and past information. Inherent with any <br />forecast is a degree of uncertainty. A 10 year life span is a relatively short period of time for <br />a sand and gravel operation such as exists at the Fetcher/Vale Gravel Pit. <br />LAND USE SUMMARY <br />USE AREA <br />IN AC. <br />OETOTAL <br />Existin Permit 14.8 58.5 <br />Pro osed Addition 10.5 41.5 <br />TOTAL 25.3 <br />Gravel Extraction 18.0 71.2 <br />Sta in Area 1.8 7.1 <br />Road Ri ht-of-Wa 1.2 4.7 <br />Buffer 4.3 17.0 <br />SEDIMENT CONTROL -The site will utilize a main sediment sump to trap all runoff from <br />the 100 year 24 hour event. By utilizing a gravel embankment, this water will be detained in <br />the sump but will seep through the embankment within 72 hours therefore, no discharge <br />permit is needed, no well permit is needed to detain the water and proper sediment control <br />is achieved. The calculations for the pond are shown below: <br />