Investigation of Groundwater Flow Variations near a Recharge Pond with Repeat Deliberate Tracer Experiments
| Autor: | Jordan F. Clark, Sheila K. Morrissey, Jason Dadakis, Adam S. Hutchinson, Roy Herndon |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Hydrology
geography lcsh:TD201-500 geography.geographical_feature_category lcsh:Hydraulic engineering Groundwater flow Geography Planning and Development managed aquifer recharge (MAR) Aquifer Orange County Water District (CA USA) Groundwater recharge Aquatic Science Structural basin groundwater flow and management geochemical tracers Biochemistry lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Depression-focused recharge Water quality Surface water Geology Groundwater Water Science and Technology |
| Zdroj: | Water; Volume 6; Issue 6; Pages: 1826-1839 Water, Vol 6, Iss 6, Pp 1826-1839 (2014) Clark, JF; Morrissey, S; Dadakis, J; Hutchinson, A; & Herndon, R. (2014). Investigation of groundwater flow variations near a recharge pond with repeat deliberate tracer experiments. Water (Switzerland), 6(6), 1826-1839. doi: 10.3390/w6061826. UC Santa Barbara: Retrieved from: http://www.escholarship.org/uc/item/6dc9k5ms |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w6061826 |
| Popis: | Determining hydraulic connections and travel times between recharge facilities and production wells has become increasingly important for permitting and operating managed aquifer recharge (MAR) sites, a water supply strategy that transfers surface water into aquifers for storage and later extraction. This knowledge is critical for examining water quality changes and assessing the potential for future contamination. Deliberate tracer experiments are the best method for determining travel times and identifying preferential flow paths between recharge sites over the time scales of weeks to a few years. This paper compares the results of two deliberate tracer experiments at Kraemer Basin, Orange County, CA, USA. Results from the first experiment, which was conducted in October 1998, showed that a region of highly transmissive sedimentary material extends down gradient from the basin for more than 3 km [1]. Mean groundwater velocities were determined to be approximately 2 km/year in this region based on the arrival time of the tracer center of mass. A second experiment was initiated in January 2008 to determine if travel times from this basin to monitoring and production wells changed during the past decade in response to new recharge conditions. Results indicate that flow near Kraemer Basin was stable, and travel times to most wells determined during both experiments agree within the experimental uncertainty. © 2014 by the authors. |
| Databáze: | OpenAIRE |
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