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5. All recharge ponds must have a staff gauge installed such that the gauge <br />registers the lowest water level in the pond. The staff gauge must be readable <br />from a readily accessible location adjacent to the pond. <br />6. All recharge areas must be maintained in such a way as to minimize <br />consumptive use of the water by vegetation. No recharge area may be used <br />for the planting of crops during the same irrigation year that it is used as a <br />recharge site without prior approval from the water commissioner or <br />division engineer. <br />7. The amount of water recharged to the alluvial aquifer is determined by measuring <br />the amount of water delivered to the recharge structure and subtracting: <br />a. the amount of water discharged from the recharge structure, <br />b. the amount of water lost to evaporation (see item 8, below), <br />c. the amount of water lost to consumptive use due to vegetation located <br />within the recharge structure, and _ <br />d. the amount of water retained in the recharge structure that has not yet <br />percolated into the ground. <br />8. Net evaporative losses from the recharge structure must be subtracted from the <br />volume of water delivered to the pond. Evaporative losses must be taken every <br />day the pond has a visible water level. If the pond does not have a stage - surface <br />area curve approved by the water commissioner, the maximum surface area of <br />the pond must be used to determine the evaporative losses. Monthly loss factors <br />prorated for the number of days the pond had a visible water level may be used <br />as may real time evaporation data from NOAA or a local weather station. If the <br />pond is not inspected on a routine basis through the month, no prorating of <br />monthly factors will be allowed. <br />9. The amount of accretions from the recharge structure will be credited only in <br />accordance with a decreed plan of augmentation or substitute water supply plan <br />approved by the State Engineer. <br />10. All water delivered for recharge must be fully consumable: <br />a. changed reservoir rights or the CU portion of changed senior ditch rights; <br />b. transbasin water that has been imported into the South Platte River basin; <br />c. nontributary water; <br />d. excess (unused) accretions from the previous recharge of fully <br />consumable water; <br />e. water diverted in priority after "notice" of intent to fully consume the water; <br />f. water diverted under free river. <br />11. Water may be delivered to recharge only if the net impact of the associated plan <br />for augmentation is not negative. Water must first be delivered or exchanged to <br />offset negative impacts of the plan for augmentation before it may be diverted for <br />recharge. <br />12. Accounting must be performed on a daily basis with reports submitted at least <br />monthly and within 30 days of the end of the month for which the accounting is <br />being made. The volume of water diverted into recharge must be provided to the <br />water commissioner weekly when requested by the water commissioner. <br />Administration Protocol - Recharge <br />Revised February 1, 2008 <br />