b'298,000 acre-feet/year by the year 2065, whichinto the aquifer (see Figure 5). According to the IWRB, represents an increase in DCMI demand of betweenthe aquifer had been over-drafted by about 200,000 109,000 and 188,000 acre-feet/year. To combatacre-feet of water per year and aquifer levels have these increases, conservation eorts could helpbeen declining since the 1950s. The agency hopes to reduce water demand by 10 to 30 percent; possiblesurpass their recharge goals in wet years to stay on strategies include the use of water-ecient xturestrack with their long-term goals.14and plumbing, drought-tolerant landscaping, responses to possible future water-cost increases,However, recharge eorts are not free of negative etc. Additional sources of supply will still be neededdrawbacks. By diverting Snake River surface water to water the projected populations. Options forinto unlined canals or adjacent spill basins to seep supplying the net DCMI demand could include (1)into the aquifer, less water becomes available for diversions from the Boise River (through increasedhydro-power generation in the winter months. surface-water storage, use of ood ows for aquiferIdaho Power ocials have noted signicantly less storage and recovery strategy, or direct diversionswater may be passing through the companys power from the Boise River below Star, Idaho), (2) additionalturbines when the winter recharge program is fully development of Treasure Valley groundwater, (3)operational. As of December 1, 2019, the IWRB new diversions from the Snake River, or (4) reuse ofestablished a temporary minimum ow of 200 cubic treated municipal euent.13 feet per second (cfs) below Milner Dam, located near Burley. However, this is just a temporary solution Lastly, there are ongoing attempts to rechargeuntil ocials can reach an agreement. Idaho Power Idahos aquifers. For the fourth year in a row, the IWRBmaintains that 200 cfs is not sucient, while others exceeded its goal of recharging an average 250,000argue that stabilizing the aquifer is the top priority acre-feet of water into the Eastern Snake Plain Aquiferand cannot be compromised.15 Decision makers will during the winter of 2019-2020. In fact, the IWRBultimately need to decide how best to apportion recharged approximately 447,950 acre-feet of waterlimited water resources for mounting needs.IWRB ESPA Recharge500,000) IWRB Recharge Volume (af 450,000400,000350,000300,000250,000200,000150,000100,00050,00002014-2015 2015-2016 2016-2017 2017-2018 2018-2019 2019-2020FIGURE 5. IWRB Eastern Snake Plain Aquifer recharge amounts 16134 I D A H O I N F R A S T R U C T U R E G U I D E B O O K'