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I I I I I I I I I I I I I I I I I I I presumed depletion of 50 percent of the amount pumped was assigned, per Rule 4.2. The Division Engineer has agreed that a presumptive depletion of 30 percent can be used for diversions of groundwater used as a supplemental source of supply for flood and furrow irrigation. Some wells included in this preliminary plan are pumped for uses for which presumptive depletions are not defined in the Rules. As shown in Appendix B, these uses include domestic or household ("D" or "H" which are assumed to be equivalent and which may include indoor and outdoor uses as well as stock watering), municipal ("M" for entities such as Boone and Avondale Water and Sanitation District), commercial ("C"), and other ("0"). In RMC's experience, municipal uses typically have an average annual consumption of35-40 percent of the amount of raw water diverted. Since most of the categories just mentioned involve municipal types of use, depletions in the range of 35-40 percent are reasonable, The depletion used in this plan for these uses is based on 60 percent indoor use (5 percent per month) at 10 percent consumption, and 40 percent outdoor use (March through November) at 82 percent consumption (as required by the State Engineer's Office). This distribution of use and consumption results in a depletion factor of38.75 percent. A few exceptions to the depletions presented above include farms for which a portion of the acreage is flood irrigated and a portion is sprinkler irrigated. In this case, the sprinkler depletion factor is used except when the acreages under each type of irrigation are separately quantified, in which case the depletion factor is weighted based on those acreages. Two further exceptions to the municipal type depletion described above are the Burrell and Walter wells (!D's 1705041, 1705042 and 1705777) which are used for seed washing. A depletion of 10 percent has been estimated for these wells. One other exception to the municipal type depletion estimate is the Eldon well (!D 1405637). The water from this well is pumped into a fish pond, and for purposes of this plan, it has been assumed that 50 percent is depleted due to evaporation and 50 percent is lost due to seepage. The type of use and presumptive depletion for each AGUA member well or groups of wells is listed in Appendix C and is summarized for the various types of use in Table 5. G.\3I77 ~ 003\REPORTSIAGUA97 ~ l_RPT 10 PrinledFebruary27,1997