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Show Madison- Effects of Causeway on Chemistry of Great Salt Lake Table 3. Effect of load loss or gain on the concentration of dissolved solids in the south part of Great Salt Lake Lake stage ( feet) Approximate change in average concentration of dissolved solids, in grams per liter, for the indicated load loss or gain in the south part Load loss or gain, in millions of tons 10 50 100 200 4,192 ± 1.3 ± 6.5 ± 13 ± 26 4,194 1.1 5.7 11 23 4,196 1.0 5.0 10 20 4,198 .9 4.4 8.8 18 4,200 .8 3.8 7.7 15 4. Continuous or closely spaced periodic measurement of quality of discharge, both north and south, through the culverts. 5. Measurement of quality of flow, both north and south, through the causeway fill. 6. Determination of the areal extent and volume of salt crust on the lakebed north and south of the causeway. 7. Measurement of changes in thickness of the salt crust. 8. Periodic measurement of chemical quality of the brine at representative points in both parts of the lake. 9. Determination of quantity of brine withdrawn for industrial use. The analysis of the data will be extremely complex because it will involve the manipulation of many interdependent variables. Meaningful predictions will best be obtained by the construction of a model which incorporates all available data. After the model is verified, it can then be used to predict changes in the chemistry of the lake under stipulated future conditions. 30 |
