Laserfiche WebLink
<br />o <br />1\,) <br />.UJ <br />~ <br /> <br />Table 4-4 <br />USDA Salinity Control Progress Summary <br /> <br /> Salt Planned Expenditure Projected Cost <br /> Controlled Salt thru Total Effectiveness' <br />Unit thru FY 01 Control FYOl Cost' thru FY 01 <br /> (tono per year) (tons per year) ($1000'0) ($1000's) ($ per ton) <br />McElmo Creek 17,662 46,000 10,253 26,704 48 <br />Lower Gunnison 58,870 166,000 31,235 88,076 44 <br />Uinta Basin 106,040 106,800 52,748 53,126 41 <br />Grand Valley 85,505 132,000 39,322 60,704 . 38 <br />Big Sandy River 36,994 52,900 11,913 17,035 27 <br />Price- San RafaeI3 13,278 120,220 2,569 23,260 16 <br />Totals 318,349 623,920 148,040 268,905 39 <br /> <br />I Total costs estimated as a ratio of existing costs and tons controlled to planned tons controlled. <br />, Cost-effectiveness computed using 6.625% planning interest rate over 25-year life. <br />'Integrated Reclamation and USDA irrigation improvements program. <br /> <br />Bureau of Land Management <br /> <br />The Bureau of Land Management (BLM), it is felt, should have acommitmentto help <br />meet state and federal water quality standards within the Colorado River Basin. Included in this <br />commitment would be the goal of reducing the contribution of salts to the Colorado River from <br />BLM-administered public lands. Although salt reduction is achieved by controlling both point and <br />nonpoint sources of salt contributions, the majority of salt derived from public lands is of nonpoint- <br />source origin. The greatest reductions in salt may be achieved through management practices that <br />minimize soil disturbances, repair disturbed surface environments, and protect water quality. It is <br />recognized that due to the nature and behavior of nonpoint soUrces of salinity, the imprecise <br />boundaries encompassed by many management decisions, the large areas involved, and the <br />uncertainties concerning salt transport in arid environments, it is difficult to quantifY actual impacts <br />on total dissolved solids in the Colorado River with any reasonable degree of precision or accuracy. <br />In contrast, the calculation of salt reduction from point-source control activities is relatively easy and <br />precise. The BLM has used, in the past, a three-pronged approach to salinity control: <br /> <br />. Control of point sources, such as saline springs and seeps and abandoned flowing wells that <br />yield saline water (larger projects are referred to the Bureau of Reclamation) <br /> <br />4-11 <br /> <br />~, ~ <br />