Questioning the impact and sustainability of percolation tanks as aquifer recharge structures in semi-arid crystalline context

Natural Water Treatment Systems for Safe and Sustainable Water Supply in the Indian Context: Saph Pani

“…The results of the water balance show a high variability in the tank infiltrated water from 11,730 m 3 during the 2012 monsoon to 229,155 m 3 during the 2013 monsoon. The results are in agreement with the predictive water balance performed in Boisson et al (2014a) through a different approach for the 2012 monsoon. As well, the estimated infiltration rates and ratio percolation over inputs are in the same range as that observed in in a similar context.…”

“…The water balance presented here is based on observation and cannot be used for prediction. Simple predictive modelling based on water budget as the one developed from the same site presented in Boisson et al (2014a) are efficient, easy to perform and require limited monitoring. However, as observed by Boisson et al (2014b), the contribution of surface water to the real effective recharge of the aquifer tends to be overestimated due to possible storage in the unsaturated zone, especially in cases of a weak monsoon.…”

Natural Water Treatment Systems for Safe and Sustainable Water Supply in the Indian Context: Saph Pani

“…In the Musi River Watershed wetlands could make a contribution to improve water resources quality for irrigation water. Boisson et al (2014aBoisson et al ( , 2014b; ; ; ; ; Wyns et al (2004); Perrin et al (2011) Parimalarenganayaki and Elango (2014), Elango ( …”

“…The objectives are to assess the potential of percolation tanks as managed aquifer recharge structures by: 1) quantifying the volume of water recharged to the aquifer by a percolation tank 2) developing a simple methodology for prediction of yearly benefits to the aquifer from percolation tanks 3) defining the hydrodynamic and hydrochemical specificities of percolation tanks in crystalline aquifers 4) assessing the impact of percolation tanks on the ground water quality An overview of major results is presented in this chapter. More detailed information on methodologies and detailed results can be found in related publications (Boisson et al 2014a;Boisson et al 2014b;Alazard et al 2015).…”

An exact analytical solution for steady seepage from a perched Aquifer to a low‐permeable sublayer: Kirkham‐Brock's legacy revisited

“…In arid Gulf countries, including Oman, managed aquifer recharge (MAR) from ponds, basins, ditches, and other surface impoundments (hereafter called channels) often occurs through a top highly permeable alluvium of conductivity k 1 [ Maliva et al ., ; Missimer et al ., ], with a subjacent ancient alluvium of a much lower hydraulic conductivity k 2 .The dammed rain‐born surface runoff or excess tertiary treated water from sewage treatment plants (STP) is seasonally (from several weeks to several months) available for MAR [ Al‐Ismaily et al ., ] (see also the photo gallery in the supporting information file). The rest of the year many MAR infiltration ponds are dry, similarly to naturally recharged desert soils and vadose zone, which are replenished through occasionally flowing wadis [see, e.g., Batlle‐Aguilar and Cook , ; Boisson et al ., ; Shanafield and Cook , ]. For example, the Haya STP in Oman operates several infiltration ponds (called lagoons), one of which is empty during summer and full in winter.…”