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<br />Off-site Problems <br /> <br />'.1. <br /> <br />Annual irrigation induced sediment deposition on irrigated areas 57,500T <br />Sediment deposited annually into channels of Arkansas River 20,000T <br />Average Selenium Level in Arkansas River at La Junta Recorded at 17 micro <br /> grams/liter <br />Average Nitrate Level of groundwater Exceeds State/EP A <br /> standards in 1/3 of <br /> wells tested <br />Selenium level in groundwater increasing <br />Salt load to Arkansas River from watershed 77,000T <br />Aquatic and wildlife habitat quality imoaireddeeraasing <br />Trace elements and heavy metals and nitrate levels in Arkansas high <br />River <br />Water quality in drains and creeks in watershed low <br /> <br />There are significant opportunities to improve the environment within the watershed. <br /> <br /> <br />Analysis of the watershed identified the problems discussed in this section. The <br /> <br /> <br />problems are similar over the entire watershed irrigated acreage and the drains that <br /> <br /> <br />convevGOOlr~bute the pollutants to the Arkansas River. Management and enduring <br /> <br /> <br />irrigation practices provide the opportunities to reduce the nutrient, trace elements, <br /> <br /> <br />heavy metals, sediment, and pesticide problems in the watershed downstream in the <br /> <br /> <br />Arkansas River. <br /> <br />:Ill~ <br />