Hyderabad’s average groundwater level has fallen sharply to 11.10 metres below ground level from 4.80 metres last year, amid widespread rainfall deficits. All 16 mandals recorded deficient rainfall, raising concerns over dry borewells and water shortages before summer. Hyderabad: Hyderabad’s groundwater table has plummeted to an alarming average depth of 11.10 metres Below Ground Level (m bgl) this monsoon, down sharply from last year’s baseline of 4.80 m bgl.