Code of Colorado Regulations
400 - Department of Natural Resources
402 - Division of Water Resources
2 CCR 402-6 - RULES AND REGULATIONS APPLYING EXCLUSIVELY TO THE WITHDRAWAL OF GROUND WATER FROM THE DAWSON, DENVER, ARAPAHOE AND LARAMIE-FOX HILLS AQUIFERS IN THE DENVER BASIN
10 - Replacement of Existing Wells Completed Into Two Adjacent Aquifers

If a permit is sought to replace an existing well that withdraws ground water from two adjacent Denver Basin Aquifers, pursuant to a valid water court decree or well permit, the applicant or permittee shall, upon proper application, be granted a permit for a replacement well to withdraw ground water from the same producing interval as the original well. Provided, however, that the replacement well shall be constructed within 200 feet of the original well. This rule shall not apply to the issuance of permits for new wells, additional wells, alternate point of diversion wells, or supplemental wells.