Table 2 Alkalinity hazard classes of groundwater, the Mougheul area

From: Physicochemical evolution and evaluation of groundwater quality in Mougheul area (Southwest of Algeria)

SAR D1 D2 D3 D4 D5 W6 W the farm
Max (year) 2.88 (2015) 1.99 (2019) 2.56 (2018) 2.24 (2018) 3.35 (2009) 6.42 (2019) 3.45 (2019)
Min (year) 1.00 (2009) 1.50 (2011) 1.42 (2009) 1.15 (2010) 1.26 (2014) 4.83 (2009) 1.00 (2013)
Water class Excellent Excellent Excellent Excellent Excellent Excellent Excellent