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0 63 <br />and within the tailings pond, a review of different water <br />treatment methods, and economic estimates of how much each <br />treatment method costs for different sized operation. He <br />also suggests that the tailings pond is a good place to <br />conduct practical experiments to determine just which set <br />of procedures will work best for wastewater treatment. The <br />number of parameters that he suggests to vary is extensive. <br />Among the more interesting are ways of promoting or retarding <br />evaporation from the pond, ways of constructing leakage <br />control. points rather than relying on impervious liners, <br />and suggestions for turbulence baffles to promote settling <br />efficiency. <br />CONCLUSIONS <br />• These suggestions for water maintenance are not innova- <br />tive but neither are they costly. Hopefully, the procedures <br />follow an obvious problem-solving sequence: <br />1. Secure a complete chemical analysis of the water for <br />a number of times over the course of a year. Include <br />some samples collected during spring runoff. <br />2. At more frequent intervals (about once a week) <br />determine the pH, conductivity, and total suspended <br />solids in the water. <br />3. Assess whether ground waters are of the diffuse or <br />conduit aquifer type in underground operations. <br />4. Block off conduit aquifers on the surface if possible. <br />5. Separate and divert the different water types. <br />E