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VP A I IS I ISI i R f, <br />RIVERSIDE PUBLIC UTILITIES <br />a Board Memorandum <br />PLJiBl_TC: LJ TI LT TI PS <br />BOARD OF PUBLIC UTILITIES DATE: MAY 14, 2018 <br />GENERAL MANAGER'S REPORT <br />ITEM NO: 18 <br />Summary of Riverside Public Utilities <br />Urban Water Production and Conservation Efforts / Groundwater Level <br />Update As of March 2018 <br />Conservation Efforts <br />RPU's urban water production in March 2018 was 3,657 AF. This is a decrease from last March <br />by 471 Acre-feet or about 11% in conservation. Weather conditions showed an increase in <br />rainfall from 0.15 inches in March 2017 to 1.65 inches in March 2018. In addition, March 2017 <br />was 7 degrees warmer compared to March 2018. RPU is still within the historical production <br />range from 2013 to 2017 as shown in Figure 1. Figure 1 also shows that RPU's projected <br />annual urban water production in 2018 is 65,800 AF which is below the compliance target <br />specified in SB X7-7 (i.e. 20% reduction by 2020). The projections for the 2018 urban water <br />production is based on current trends of increased consumption and can be affected by the <br />upcoming permanent water prohibitions, the return of the drought, and the proposed rate <br />increase. The projected annual urban water production is also below RPU's current potable <br />rights, which potentially can maximize RPU's passive assets by 6,200 AF through wholesale to <br />Western Municipal Water District. <br />Basin Groundwater Levels <br />Groundwater levels in the Bunker Hill, Rialto -Colton, and Riverside North basins are continuing <br />to show a long-term declining trend, while groundwater levels in the Riverside South Basin <br />remain relatively stable as shown in Figure 2. Groundwater levels in the Bunker Hill Basin are <br />continuing to rebound from summer pumping; however, water levels remain approximately 3 <br />feet lower as compared to March of last year. Water levels in the Rialto -Colton and Riverside <br />North basins are 4 and 24 feet lower as compared to March of last year, respectively. One of <br />the likely reasons for the large March difference in the Riverside North basin is due to the lack of <br />rainfall and replenishing storm flows. By this time last year, the Riverside area had received <br />approximately 12.2 inches of rain, while this water year; the Riverside area has only received <br />about 3.6 inches of rain. The Riverside South basin is approximately 3 feet lower as compared <br />to March of last year. <br />Page 838 <br />