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Antonia Vorster -3- 8 December 1989 <br /> states that SMS will close the evaporation ponds and use their old wooden tanks for <br /> wastewater evaporation. If the tanks were elevated, and provided with adequate <br /> secondary containment immediately underneath, their plan might work, although the <br /> evaporation capacity of the tanks must be substantiated. Also, it does not appear that <br /> SMS has considered potential odor problems and how they might correct them. I believe <br /> the chance is high for operator error in such a complicated waste distribution system <br /> as they propose, and am not convinced that proper waste disposal will occur. <br /> SUMMARY <br /> SMS has been undertaking some steps to evaluate the impact their operation has caused <br /> to surface and ground waters. Also, they have committed to complete additional site <br /> improvements which should help reduce their water quality threat. SMS should submit <br /> a technical report which provides the following information on their progress in <br /> addressing our concerns: <br /> 1. A time schedule and plan detailing how the extent of ground water contamination <br /> will be determined. Well logs for the three new wells should be included. <br /> 2. A sampling/analysis plan for future water quality monitoring. <br /> 3. A time schedule and plan for completing additional site improvements such as <br /> upgrading the AC pads for secondary containment, plumbing the tank rows, and <br /> complete conversion to bulk salt loading. <br /> 4. All sampling results for surface and ground water analyses, as they become <br /> available. <br /> PHL:pl <br />