In the event a replacement permit is sought for an existing well completed in two or more aquifers, then, unless the rules for a specific aquifer or aquifers provide otherwise, the State Engineer shall issue replacement permits requiring that each of the wells be completed in only one aquifer. Upon proper application, a replacement permit shall be issued for a well in each of the aquifers from which the existing well produced water. The allowed average annual amount of withdrawal for the existing well shall be divided equally among the replacement wells unless data are available which support a claim that the existing well produced water from the aquifers in a different ratio.
2 CCR 402-7-13