Generally, a standard 2000 LPH packaged drinking water plant needs:

• Total space: 5000 Sq. Ft built up area with 3000 Sq. Ft of covered area
• Power: 65 HP
• Raw water: Approximately 3000 LPH of raw water of which 70 % will be used and 30 % will be rejected. This is, however, an indicative quantity as it will depend on the TDS (Total Dissolved Solids) of the raw water.
• Project cost : Rs. 75 lakh approximately which includes the cost of machinery, utilities, furniture etc (Note – the cost was approximated in 2013).
• it is mandatory now for bottled water to be sold only in prescribed standards. These are 100 ml / 150 ml / 200 ml / 250 ml / 300 ml / 330ml [ only in cans ], 500ml / 750 ml / 1 liter / 1.5 liter / 2, 3, 4, 5 liters and thereafter in multiples of 5 liters.
• This is an approximate idea you can search out Google or call a mineral water plant dealers.
• Hope this will help you.