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5. May be possible to improve yield through maintenance and repair. '::) 6. Decreed capacity is 10 cfs. '::l tg John Martin Reservoir Permanent Pool Evaporation: QO (See Table 2, Table 3 and Figure 4) r~ t~ 1. The evapm~ti?n from the permanent pool has average~~r year since 1980. 2. The evaporation could approach 4,932 AF per year if 10,000 AF is only water in reservoir, which is most unlikely if the 1980 operations agreement continues. 3. The present content of the permanent pool is approximately 2,800 AF so additional water is needed to restore permanent pool to 10,000 AF. 4. DOW has authority to maintain 10,000 AF in permanent pool without spill which will provide a surface area of 1,752 acres. 5. DOW can maintain an additional 5,000 AF in reservoir, but it would be subject to spill. 6. Surface area at 15,000 AF capacity is 2,111 acres. 7. For the 1980-91 period, 2200 AF of water would have been needed to maintain the permanent pool at 10,000 AF. Keesee Ditch: (See Table 1, Figures 5 and 6) 1. A Senior water right which is approximately 5 miles downstream of John Martin Reservoir. 5. AYerage consumptive use is 2,577 AF per year (1940-85). ~"'le.., ~~~~+<y ~ ~ . V"~" ;j- @ '* '."'0 I~f' . a-P," -~~;.. ><.cL,.~ (JY(7~~ J............7J..:--..-- . 1"!ot-'- ;., ?^"'I0-' ~ 2. Entire ditch owned by single owner. 3. Acres irrigated have averaged 1,845 acres. 4. Average diversion is 4,610 AF per year (1940-85). 6. Ditch is located along Arkansas River in bottom lands which could be good upland game habitat. 7. Institutional constraints to use for John Martin Reservoir evaporation. a. Change in use to storage must be obtained from water court. l'15~ ~a~ b. Storage in John Martin Reservoir must be approved by ARCA. c. Maintenance of historic return flows will be required and may require the use of a return flow storage account in John Martin Reservoir. d. Kansas will demand that wells under Keesee Ditch be abandoned since they are postcompact. c~ k WJ1 kn{,,'Gl'- 2