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<br />MAY 1982 <br /> <br />The plan of implementation was reviewed in 1981 and modified to reflect <br /> <br />changes that have occurred since 1978. The principal components of the plan <br /> <br />are: <br /> <br />1. Prompt construction by the Department of the Interior of two salinity <br />control units authorized by Section 202, Title II, of Public Law 93-320, <br />namely the Paradox Valley and Grand Valley Units. <br /> <br />2. Expeditious authorization and construction by the Department of the <br />Interior of the Meeker Dome Unit and 10 of the units listed in Section <br />203(a)(I), Title II of Public Law 93-320, or their equivalents after <br />receipt of favorable planning reports. <br /> <br />3. Expenditious implementation by the Department of Agriculture of onfarm <br />and related measures for salinity control. <br /> <br />4. Implementation of salinity control measures by the Bureau of Land <br />Management to reduce salt contribution from public domain lands. <br /> <br />5. The placing of effluent limitations, principally under the National <br />Pollutant Discharge Elimination System (NPDES) permit program, provided <br />for in Section 402 of the Clean Water Act of 1977 on industrial and <br />municipal discharges based on the Forum's 1977 policy on salinity <br />control through the NPDES permits. <br /> <br />6. Implementation of the 1980 Forum policy for the use of brackish and/or <br />saline waters for industrial purposes. <br /> <br />7. Inclusion of the 208 Water Quality Hanagement Plans. Individually, the <br />Basin states have developed water quality management plans to conform to <br />the requirements of Section 208 of the Clean Water Act. The water <br />quality management planning process is continuing. As the plans are <br />refined or new elements added and after such changes have been adopted <br />by the states and approved by EPA, those portions of the plans dealing <br />with salinity control will become part of the implementation plan. <br /> <br />SALINITY PIWBLEMS IN THE McELNO CREEK UNIT <br /> <br />Salt Sources - Analysis of water quality data by the U.S. Geological <br /> <br />Survey inidicates that McElmo Creek contributes about 115,000 tons of salt <br /> <br />annually to the Colorado River. Most of these salts are leached from the <br /> <br />soil and underlying Mancos shale and carried into the river by deep <br /> <br />percolation from irrigation and seepage from water delivery and tailwater <br /> <br />return flow systems. <br /> <br />("\01868 <br />v <br /> <br />IV-3 <br />