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The grouting plan calls for the use of two kinds of grout: one is a portland <br />cement / flyash mixture, and the other is a superfine (typically 3 micron) particle <br />size grout which is intended to permeate into very small fractures and joints in <br />the rockmass. Additional data about this product is under Tab 13. <br />The general grouting plan appears under Tab 11, and the grouting specification <br />at Tab 12. <br />2.9 Additional Monitoring pipes <br />On December 7~h, MES was requested by Cotter to modify the Steve bulkhead to <br />incorporate two additional stainless steel pipes, to be designed and provided and <br />installed by Frontier Environmental Services, Inc. ("FESI") for the purpose of <br />providing a method of obtaining water level measurements and samples from the <br />mine shaft remotely. <br />MES personnel delayed closure of the Steve Adit forms for 3 days, in order to <br />accommodate the new piping and the associated HDPE lines. MES personnel <br />assisted Frontier in the installation of the pipes, and then worked over the <br />weekend in an attempt to recover schedule. A sketch, provided by FESI, <br />illustrates the placement of these pipes, and is included at Tab 6. <br />• <br />Figure 5: HDPE monitoring pipe installation <br />• <br />