Estimated water use in Arkansas, 2010

Abstract

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Hydrogeology and hydrologic conditions of the Ozark Plateaus aquifer system

“…(table 8). At the eastern border of the Ozark system, agriculture in eastern Arkansas and southeastern Missouri is dominated by row-crop agriculture, including production of cotton, rice, and soybeans (Missouri Department of Natural Resources, 2003;Pugh and Holland, 2015); however, as previously noted, counties at the eastern border of the Ozark system withdraw a majority of the groundwater from shallow alluvial aquifers (Pugh and Holland, 2015) and were therefore excluded from the analysis of water use in the Ozark system ( fig. 8).…”

“…The largest division of groundwater use is public supply (including water withdrawn by public and private water suppliers that furnish water to at least 25 people or have a minimum of 15 service connections (Pugh and Holland, 2015), which has accounted for 34 to 44 percent of total groundwater use since 1985. Additionally, an estimated 63 Mgal/d of water was withdrawn for domestic self-supply in 2010, with nearly all withdrawals assumed to be from groundwater (Maupin and others, 2014;Pugh and Holland, 2015). Groundwater used for public supply and domestic self-supply totaled 212 Mgal/d in 2010, or approximately 56 percent of total groundwater use, highlighting the importance of groundwater as a drinking-water source in the Ozark system.…”

Water-level trends and potentiometric surfaces in the Nacatoch Aquifer in northeastern and southwestern Arkansas and in the Tokio Aquifer in southwestern Arkansas, 2014–15

“…4;Holland, 1993Holland, , 1999Holland, , 2004Holland, , 2007Schrader and Rodgers, 2013;Pugh and Holland, 2015). Withdrawals from the southwestern study area reached a peak of 4.75 Mgal/d in 1980 (fig.…”

“…Water-use data from Halberg and Stephens, 1966;Holland and Ludwig, 1981;and Holland, 1987and Holland, , 1993and Holland, , 1999and Holland, , 2004and Holland, , 2007Pugh and Holland, 2015 Withdrawals, in million gallons per day Figure 5. Estimated withdrawals by county from the Nacatoch aquifer for the southwestern study area.…”

Challenges for creating a site-specific groundwater-use record for the Ozark Plateaus aquifer system (central USA) from 1900 to 2010

“…Public supply use was concentrated around urban areas, whereas domestic use was more widely distributed throughout rural areas (Video S1 of the ESM). Water used for domestic self-supply is nearly 100% from groundwater resources (Missouri Department of Natural Resources 2003; Maupin et al 2014;Pugh and Holland 2015), and parts of the Ozark Plateaus remain rural and without public-supply infrastructure, further highlighting the importance of groundwater as a drinkingwater source in the Ozark system.…”