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Hydrogeologic characteristics of four public drinking-water supply springs in northern Arkansas
U.S. Government
Paperback. Books LLC, Reference Series 2011-10-02.
ISBN 9781234264321
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Publisher description
Original publisher: Little Rock, Ark. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, Colo. : U.S. Geological Survey, Branch of Information Services [distributor], 2004. OCLC Number: (OCoLC)54531747 Subject: Hydrogeology -- Arkansas. Excerpt: ... The passive dye detectors consisted of activated liequivalents per liter on trilinear diagrams to deter-charcoal contained in a nylon mesh screen. The detec-mine water composition type and to examine tors were placed in the center of flow at springs or sus-similarities between samples ( Hem, 1989 ). Samples pended in wells using a nylon line or wire. The dye was collected for this report were compared to other sam-extracted from the passive detectors by elutriation in a ples collected from previous studies in northern Arkan-5 percent ammonium hydroxide and 70 percent pro-sas and southern Missouri. Water-quality data for wells panol solution as described in Mull and others ( 1988 ). and springs identified as being contributed by water Positive or negative determination of tracer recovery from the Springfield Plateau aquifer or Ozark aquifer was made using a scanning spectrofluorophotometer as were obtained from the USGS National Water Informa-described by Duley ( 1986 ). tion System ( NWIS ) database. The ratio of calcium to magnesium, as molar equivalents per liter, was calcu-Two tracer tests were conducted in the Hughes lated to determine the mineralogy of the rocks that Spring study area that included a total of seven separate influence the ground-water chemistry. For waters in injections at different locations. One test also was con-contact with dolomite, the molar ratio of calcium to ducted in the Stark Spring study area that included four magnesium is approximately 1. For water in contact injections and one test in the Evening Shade Spring with limestone, ratios have been observed to vary from study area that included three injections. Tracer tests 3 to greater than 10 ( White, 1988 ). were not con
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Hydrogeologic characteristics of four public drinking-water supply springs in northern Arkansas
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