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ditch loss at those times. Per the decree, lagged accretions to the South Platte River from <br />diversions to recharge are accounted via the Stream Depletion Factor (SDF) method. None of the <br />wells were historically metered or have calibrated electric coefficients; therefore, no actual pump <br />records are available. Out-of-priority lagged well depletions are administered in the river below <br />the Fort Morgan Canal headgate with a common priority date. <br />Recommendations <br />Recommendations for representing the Fort Morgan R&I Co. augmentation plan in the initial <br />development of the SPDSS StateMod Water Resources Planning Model input files are presented <br />below based on review of the W-2692 decree and interviews with canal company personnel and <br />Division 1 personnel. <br />Augmentation Plan Demands <br />To represent pumping for the entire SPDSS study period (1950 to present), well pumping to <br />supply irrigated lands should be estimated by the consumptive use algorithm in StateCU and <br />StateMod, to meet the irrigation water requirement less simulated surface water deliveries (if <br />applicable). Lagged well depletions affect river flows based on timing and location factors <br />defined in StateMod input files. Lagged depletions and the supplies used to meet those <br />obligations should be accounted in one Fort Morgan Canal Well Depletions Plan structure (ID <br />0102528) below the ditch corresponding with administration of the augmentation plan. <br />Augmentation Plan Supplies <br />Various sources are typically available to supply water to replace lagged well depletions. The <br />sources and the structures related to the Fort Morgan augmentation plan recommended for <br />inclusion in the SPDSS model are summarized in Table 2. Augmentation supplies are as <br />follows: <br />• Recharge rights from the river for the Fort Morgan Canal augmentation plan are <br />summarized in Table 3. <br />• Recharge well rights and augmentation well rights are summarized in Table 4. <br />Model operations to supply well depletions (stored under plan ID 0102528) are discussed in the <br />augmentation plan operations section. <br />A-55 ofA-106 <br />