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1 <br />SUMMARY <br />' Increae:ed water use in the dredging area will deplete <br />the flow of the South Platte River by 64.95 acre-feet annually. <br />' The dredging will not affect wells or ditches near the dredging <br />area. The dredging will have no impact on the quality of <br />' water in the South Platte River. <br />INTRODUCTION <br />t The Sterling Ready-Mix Concrete Company, Inc., proposes <br /> to dredge gravel from the Riverside gravel dredging az~ea <br /> located in 'the floodplain of the South Platte River irr <br /> Section 28, T.BN., R.52W, The area is located in Logern <br />' County approximately 1 mile east of the City of Sterling. <br /> Figure 1 shows the location and boundaries of the dredging <br /> area. The Sterling Ready-Mix Concrete Co., presently <br />' leases the area. Following reclamation, management oi` the <br /> area will be the responsibility of the Northeast Colorado <br />' Game and Fish Club and be used for recreational purpo;~es. <br /> This report describes the water resources on the <br /> dredging area and the impacts of the dredging operations on <br /> the surface and ground water systems. <br />' WATER RESOURCE DESCRIPTION <br /> <br /> Surface Water <br /> The South Platte River lies 200 feet west of the dredging <br /> are and is the principal source of water to the area. The <br /> area is transected by the Lowline Ditch which headgates on <br />' the river erpproximately 2,000 feet south of the dredging area. <br />i <br />F <br />t <br />i <br />li <br />th <br /> ron <br />ver <br />e <br />n <br />e <br />The headwaters of the South Platte R <br /> Range of the Rocky rdountains near the Continental Divide <br /> approximately 120 miles west of the dredging area. The river <br /> is a live :stream year round at Sterling and has a drainage <br />' area of about 20,000 square miles above the dredging area. <br /> <br />' ~ Eeonard Rice Consulting Water Engineers. Inc. <br />14 <br />