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| Created: | Feb 03, 2025 at 9:18 p.m. (UTC) | |
| Last updated: | Jan 16, 2026 at 9 a.m. (UTC) | |
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Abstract
Water resources in the Houston Metropolitan Area, otherwise known as Greater Houston, have been under enormous stress for decades due to an increased population and uncertainty in climate conditions. Rapid urbanization has also led to excess stormwater. Low Impact Development strategies can be used to augment stormwater infiltration effectively implementing managed aquifer recharge in the region to help replenish groundwater resources. However, research on the effects of LID practices on groundwater quantity and quality in the Greater Houston metropolitan area is limited. The main objective of this study was to evaluate the impact of two engineered systems on groundwater recharge and chemistry shortly after a storm event and under temporarily ponded stormwater while comparing their performance with that of the native soil. Three test cells representing native soil, soil amendment, and trench aggregates were constructed in a detention basin in a Houston suburb and their performance was examined over two years. We found that trench aggregates recorded the highest mean cumulative infiltration over the monitoring period, 1.5 times that of the soil amendment and 1.6 times that of the native soil. When the test cells were fully inundated, native soil registered a drainage of 773 mm which was 14 times that of trenches and 20 times that of soil amendment. The results from the infiltration data were supported by the groundwater elevation data. Besides, the groundwater quality was not highly affected during this study except for its salinity content. The findings suggest that retrofitting detention basins with engineered systems helped enhance recharge immediately after a storm event. Native soil also facilitated significant infiltration when the detention basin was fully inundated for a prolonged period by modifying its outfall structure. The results from this study can help engineers better design existing stormwater detention basins to augment groundwater resources.
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This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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