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SUGGESTIONS for RULES CHANGES <br />Casing, Annulus, and Grout: <br />10.4.2 - All wells must be constructed with new steel <br />surface casing <br />10.4.4.1 -Borehole diameter shall not be less than <br />2.3125 inches larger than the outside diameter of the <br />casing if the annular space is grouted by a method of <br />positive displacement through the casing <br />10.4.4.1 - Require 2" annular space for entire grout <br />interval <br />10.4.4.2 - If grout is poured from the surface, the <br />annular s ace, as defined and calculated in Rule 5.2.1 <br />shall not a less the 2 inches <br />10.4.4.3 - Minimum annular space for placing grout <br />with a tremie pipe - 1.4375 <br />A. <br />