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Colorado Division of Water Resources <br />October 2011 <br />Amended February 2016 <br />Purpose................................................................................................................................ 2 <br />Introduction.......................................................................................................................... <br />3 <br />General Administration Principles......................................................................................... <br />4 <br />OneFill Rule..................................................................................................................... <br />4 <br />Carryover.......................................................................................................................... <br />6 <br />Decreed versus Physical Capacity.................................................................................... <br />8 <br />StorableInflow.................................................................................................................10 <br />RefillRights......................................................................................................................12 <br />Paper Fill, Including Bookover..........................................................................................13 <br />Out of priority Upstream Storage Statute..........................................................................18 <br />Evaporation......................................................................................................................20 <br />Seepage..........................................................................................................................22 <br />Volumetric versus Gage Height Decrees..........................................................................23 <br />Transit (Conveyance) Losses...........................................................................................25 <br />Exchanges.......................................................................................................................25 <br />Temporary Detention (72 -Hour Rule)...............................................................................26 <br />SurchargeStorage...........................................................................................................27 <br />Adequate Measurements.................................................................................................27 <br />AccountingPrinciples..........................................................................................................29 <br />Administrative Accounts (Owe -The -River Account)..........................................................30 <br />EnforcementPrinciples.......................................................................................................31 <br />Installation of Measurement Device or Reporting Orders.................................................31 <br />Storage Release Orders..................................................................................................31 <br />ADDITIONAL INFORMATION.............................................................................................33 <br />Dam Safety Restriction and Breach Orders.........................................................................33 <br />Dead/Active Storage...........................................................................................................33 <br />UndergroundStorage..........................................................................................................34 <br />SubgradeStorage...............................................................................................................34 <br />Typesof Dams....................................................................................................................37 <br />Jurisdictional versus Non-jurisdictional.............................................................................38 <br />LivestockWater Tanks.....................................................................................................39 <br />ErosionControl Dams......................................................................................................40 <br />Other Regulatory Requirements..........................................................................................41 <br />Compensatory Storage Doctrine (Transbasin Storage Agreements)...................................42 <br />RevisionLog.......................................................................................................................44 <br />This document was originally prepared under the direction of Hal Simpson, former State Engineer, and further <br />revised under the direction of Dick Wolfe, State Engineer. Several staff members of the Colorado Division of <br />Water Resources, from both the Denver office and the division offices, were instrumental in its development, <br />which also included legal oversight from the Attorney General's Office. <br />