Residents get supply on alternate days; forced to buy water from private tankersRawalpindi water crisis. The annual water supply bill for a five-marla residential property has been raised from Rs8,400 to Rs14,400, while residents say the quantity of water supplied has continued to decline. As a result, the combined daily water shortfall in the two cantonment jurisdictions has reached 41.64 MGD, with many tube wells no longer producing sufficient water. The situation is equally alarming in the CCB, where the water supply system in all 10 wards has come under severe strain. Against a daily demand of 10.12 MGD, only 5.92 MGD is available, resulting in a daily shortfall of 4.2 MGD.