Impacts of Precipitation and Pumping Rates on Chloride Concentrations in the Finegayan Basin, Guam
<p id="p1">The unincorporated island territory of the United States, Guam, utilizes the Northern Guam Lens Aquifer to supply 90% of the drinking water consumed by its residents and visitors. As an increase in population is due, it is imperative to monitor and maintain the health of this aquifer. Thr...
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| Autores principales: | , |
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2024
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/89328 |
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| Sumario: | <p id="p1">The unincorporated island territory of the United States, Guam, utilizes the Northern Guam Lens Aquifer to supply 90% of the drinking water consumed by its residents and visitors. As an increase in population is due, it is imperative to monitor and maintain the health of this aquifer. Through geospatial, temporal, and statistical analysis of chloride concentrations over time, and the analysis of the effects of average production rates and precipitation on chloride concentration in the wells of the Finegayan Basin, we aim to determine any patterns and relationships that are representative of the health of the aquifer. At the 95% confidence interval, analysis of chloride concentration over time for 62.5% of the wells demonstrate a significant increasing trend, 25% demonstrate a non-significant increasing trend, 6.25% demonstrate a non-significant decreasing trend, and 6.25% demonstrate a significant decreasing trend. While analysis of the relationships between chloride concentration and average production rates demonstrates that 43.75% of the wells demonstrate a significantly increasing relationship, not all wells in this basin are being pumped to their full capacity. Analysis of the relationship between precipitation and chloride concentration demonstrates that 68.8% show a non-significant decreasing trend and 31.2% show a non-significant increasing trend. As chloride concentrations are increasing overall, it can be suggested that water conservation be enforced more stringently during the dry season. Production rates should be increased for wells located in the para-basal groundwater zone. New production wells should also be drilled in the parabasal zone because this groundwater zone is less susceptible to saltwater intrusion.</p> |
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| ISBN: | 978-0-85014-345-4 |
| DOI: | 10.5772/intechopen.114816 |