| http://www.w3.org/ns/prov#value | - Many commentators suggested amendments to ?????78.85(b) (relating to cement standards) that would require a 72-hour compressive strength standard of at least 1,200 psi across critical zones of cement at the bottom of the casing seat where the highest pressures and stresses are likely to be encountered and in places where the well bore passes through aquifers and drinking water.
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