01-08-2018 BPU RPT 16 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: JANUARY 8, 2018 GENERAL MANAGER’S REPORT ITEM NO:16 Riverside Public Utilities Drought and Conservation Efforts / Groundwater Level Update As of November2017 Conservation Efforts For the month of November2017, Riversideresident’s water conservationwent down by 2% whichis similar to last month conservation drop. Weather conditioncomparisons between November 2013 and November 2017shows that November2017 was about 4degrees warmer but had 1.2 inches additional rainfall compared to November 2013. Cumulatively RPUis at 13%reduction from June 2016 throughNovember2017 (Figure 1). This translates to 14,555 Acre-feet (4,743million gallons)of potable water being conserved. On a Regional scale, Riverside resident’s water consumption; measured in gallons per capita per day (Residential-GPCD) is comparable to the aggregate consumption within the surrounding ten water agencies (Figure 2). RPU’s Residential-GPCD moved a little higher than the regional Residential-GPCDin the months of Maythrough October 2017, but it is at the same level regionally since January 2017with an average of 110. Figure 2 also reveals that Residential- GPCDtrend has moved up regionally and State wide. Basin Groundwater Levels Groundwater levels in the Bunker Hill, Rialto-Colton, and Riverside North basins are continuing to show a long-term, declining trend while groundwater levels in the Riverside South Basin remain stable (Figure 3). Groundwater levels in Bunker Hill, Rialto-Colton, and Riverside North are beginning to rebound from summer pumping. However, the Bunker Hill Basin is about 15 feet lower compared to last year while the Rialto-Colton and Riverside North Basins are 4.5 feet and 1 foot lower compared to last year, respectively. Page 300