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• Cavity #1A provided the majority of the production while cavities #3A and 4A were utilized part <br />of the year when needed. Injection well 3A~V and recovery wells 3A-5V and 4A~V were <br />utilized to mine cavity #3A. Well 4A~V was prepared for eventual injection status by <br />cementing the annular backside. Cavity #1A was the only cavity utilized after June 23, when <br />cavily #3A recovery well 3A-5V plugged off at the screen. A workover rig was utilized to clean <br />and unplug 3A-5V in July, however the attempt was unsuccessful. Well 4A-6V was <br />converted to a recovery well and cavities #4 and 3A were used for injection. Well 3A-5V was <br />reworked in August and a new screen was installed. The bottom of 2B-3C was cleaned out <br />and laterals drilled toward cavities #3A and 1A. The pipeline and instrumentation to 26-3C <br />were installed and completed in September. Well 3A-5V was shut down on October 23, 2001 <br />due to low flow and dirty product. Anew recovery well 1-3A was drilled vertically, cemented <br />• to surface, pressure tested, however short radius drilling to cavities #1A and 3A was <br />unsuccessful. <br />A repulping or dissolving system was installed in October to control the fines being produced <br />to bulk storage. Anew tri-calcium phosphate feeder was installed to improve the efficiency of <br />packaging TFF and to improve food safety. A second cooling tower was installed to maintain <br />lower temperature in crystallizer #4. Water conservation measures continued to be installed <br />or improved. Double RO seals were installed as needed. A pump was installed in the <br />drainage sump to return excess water to the barren tank, reducing makeup water and <br />discharge to the process pond. Steady improvements have been made in dropping the levels <br />of both the waste and process ponds. <br />5 <br />