Characterization of Urban Surfacing Ground Water in Northwest Henderson, Clark County, Nevada

Smith, Dwight L.; Guitjens, J. C.

doi:10.2113/gseegeosci.iv.4.455

Cited by 8 publications

(4 citation statements)

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“…Water samples taken from the monitoring well (seven total) at Site LVV showed the presence of diclofenac (two times), ibuprofen (three times), meprobamate (two times), sulfamethoxazole (five times), triclosan (seven times), and trimethoprim (one time) above reportable limits. The specific source of this groundwater is most likely a combination of shallow underflow from sources upgradient of the golf course (which itself is likely sourced from percolation of landscape irrigation water [Smith and Guitjens, 1998]) and downward drainage of water through the soil at Site LVV.…”

Section: Resultsmentioning

confidence: 99%

Field-Scale Monitoring of Pharmaceutical Compounds Applied to Active Golf Courses by Recycled Water

et al. 2014

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The scarcity of potable water in arid and semiarid environments has led to the wider use of recycled water for irrigating agricultural fields, parks, golf courses, and other areas. One concern using recycled water as a source of irrigation has been the presence, fate, and transport of pharmaceutical compounds in water that percolates below the root zone of plants; however, very few multiyear field studies have been reported in the peer-reviewed literature. Here, we assessed compound mass flux of 13 pharmaceuticals in the fairways of four golf courses in the southwestern United States during a 2-yr field study. The sites varied by climate and soil type but were similar regarding turfgrass management. The results showed the presence of at least one pharmaceutical compound in nearly all samples collected, although concentrations were substantially lower after transport through the soil. Percent reduction in compound mass fluxes in drainage water was effectively 100% in 22 of 52 cases, 98 to 100% in 27 of 52 cases, and 73 to 94% in 3 of 52 cases (a case is defined as a specific compound measured at a specific site). Mass fluxes migrating below the root zone were calculated as <250 × 10 g ha for all compounds and >100 × 10 g ha in only two cases. For cases where the majority of the analyses were reportable, all fluxes were <8.80 × 10 g ha. Carbamazepine, meprobamate, and sulfamethoxazole were most commonly found in drainage water, representing nearly 80% of all reportable detections. This research demonstrates the potential of turfgrass/soil systems to reduce contaminant loading below the root zone and potentially toward groundwater.

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Section: Resultsmentioning

confidence: 99%

Field-Scale Monitoring of Pharmaceutical Compounds Applied to Active Golf Courses by Recycled Water

et al. 2014

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“…The isotope data suggest much of the water is derived from similar sources and has undergone evaporation. Overlap of some of the data from shallow groundwater samples and data points from deeper aquifer sources suggests a degree of commonality of source for some sites [30]. Both shallow and deep groundwater data sets have trends that diverge from the LMWL and GMWL by a shallower slope suggestive of an evaporative component to the water.…”

Section: Stable Isotope Compositions In Sampledmentioning

confidence: 98%

An Assessment of Aquifer Potential in and around a Proposed Well Field Area near Madunaghat, Chattogram Using Isotopic Techniques

Ahmed¹,

Choudhry²,

Khaliquzzaman³

et al. 2021

JWARP

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The study was undertaken for understanding the potential of deep aquifers as a source of safe drinking water and for assessing the status of groundwater aquifer near Madunaghat area, Chattogram. The specific issues are salinity, interconnectivity of the shallow and deep aquifers, mixing of groundwater with the adjacent Halda river water, recharge condition and groundwater age. The isotopic data suggest that most of the groundwater results from a mixture between recent recharge and an older component recharge under climatic conditions cooler than at present. The interconnectivity between shallow aquifers and river waters are mostly found in the line wells installed particularly in shallow depth (16 m) close to Halda river as evidenced from the similar tritium values of sampled line well water with that of the Halda river water. The groundwater in Madunaghat well field area is not affected by salinity, as it is evidenced by higher values of Na/Cl ratio of the groundwater samples compared to the sea water fresh water mixing line. The geochemistry of intermediate and deep groundwater is dominated by Na-Mg-HCO 3 and Na-HCO 3 type waters. Even the relationship between chloride and oxygen-18

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“…Selenium mobilization into the aqueous phase leads to potential bioaccumulation in the food chain in vegetation and animal tissues and may cause dietary selenium exposure to aquatic organisms and possible biomagni cation in their predators (Devitt et al, 2014;Ehsani et al, 2021;Zhang er al., 2024). Elevated concentrations of selenium in soils and sediments in many areas of the USA, especially the western part of the USA, have been documented (Deveral and Milliard, 1988;Devitt et al, 2014;Naftz et al, 1993;Smith and Guitjens, 1998). Human activities such as landscape irrigation can accelerate the mobilization of selenium from soils and sediments with elevated concentrations (Devitt et al, 2014;Ehsani et al, 2021).…”

Section: Selenium Hazard Pro Le and Occurrence In The Las Vegas Valleymentioning

confidence: 99%

Investigating Geogenic Sources of Selenium in Shallow Groundwaters of Las Vegas Valley, USA

Ehsani,

James,

Hodge

et al. 2024

Preprint

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Selenium concentrations above Environmental Protection Agency safe levels are of potential concern in various parts of the Las Vegas Valley in both water and sediment media. Previous studies suggest that the source of elevated selenium in the Valley is possibly resurfacing groundwater. Shallow groundwater flows into Las Vegas Wash wetlands and therefore has important environmental implications for surface water quality and aquatic life. The objective of this study was to identify the source of selenium in the shallow groundwater of the Las Vegas Valley through a detailed geochemical analysis. A comparison of major anions and cations concentrations and the 4 trace oxyanions (Se, B, As, and Mo) in the Quaternary alluvium (Qa) zone versus Quaternary to Tertiary (QTs) zone wells show that Qa wells consistently exhibit higher concentrations of all the mentioned parameters than QTs wells. The mean Qa concentrations of the major ions and trace oxyanions ranged between 130–728% higher than the mean QTs concentrations. Study results suggest that selenium concentrations in the shallow groundwater in the Qa zone were highly correlated (p < 0.01) with the major ions: Na+ (r = 0.88), K+ (r = 0.87), SO42− (r = 0.86), NO3−-N (r = 0.74), and TDS (r = 0.84), and EC (r = 0.87) indicating a common source genesis. However, in the QTs zone, correlations among Se and the mentioned parameters were not significant. Principal component analysis performed on the major ions, EC, TDS, and Se of Qa and QTs showed that Se was one of the influencing parameters in the first principal component of Qa; however, in QTs, Se did not contribute to the variations of the first principal component. Pearson correlations further corroborated that salinity is associated with Se, B, and As in the Qa zone and only associated with B in the QTs zone. Overall, many more significant associations of Se with water quality parameters were determined in the Qa than in the older QTs formations, indicating that geological processes and formations’ mineralogy have influenced the mentioned associations.

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Characterization of Urban Surfacing Ground Water in Northwest Henderson, Clark County, Nevada

Cited by 8 publications

References 0 publications

Field-Scale Monitoring of Pharmaceutical Compounds Applied to Active Golf Courses by Recycled Water

Field-Scale Monitoring of Pharmaceutical Compounds Applied to Active Golf Courses by Recycled Water

An Assessment of Aquifer Potential in and around a Proposed Well Field Area near Madunaghat, Chattogram Using Isotopic Techniques

Investigating Geogenic Sources of Selenium in Shallow Groundwaters of Las Vegas Valley, USA

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