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Table 1 Predicted trend of well pump head variation for continuous 25 years of pumping (Ebaid et al. 2013)

From: Comparative economic viability and environmental impact of PV, diesel and grid systems for large underground water pumping application (55 wells) in Jordan

Well number Current actual SWL (m) In 5 years (m) In 10 years (m) In 15 years (m) In 20 years (m) In 25 years (m)
W25 101.6 252.0 260.5 266.4 269.8 272.3
W39 128.5 263.4 271.5 277.1 280.3 282.7
W34 147.4 245.0 252.4 257.6 260.5 262.7
W47 161.4 238.2 242.2 245.0 246.6 247.7