Assessment of water and energy footprint for eight bottled water industries was carried out. The investigation showed that one litre of bottled water has a water footprint of 17.41 litres and energy footprint of 7.08 MJ. Water consumption by the industry comprises 61% during material production, 17% in processes, 16% in energy and only 6% in the actual product. Hence, maximum consumption of water is in material production, while the processes required a smaller fraction of the total water and energy consumed. Therefore, water footprint can be reduced through optimization of water consumption in material production.
 S. Madival, R. Auras, S. P. Singh and R. Narayan, “Assessment of the Environmental Profile of PLA, PET and PS Clamshell Containers Using LCA Methodology,” Journal of Cleaner Production, Vol. 17, No. 13, 2009, pp. 1183-1194.
 U. Arena, M. L. Mastellone and F. Perugini, “Life Cycle Assessment of a Plastic Packaging Recycling System,” The International Journal of Life Cycle Assessment, Vol. 8, No. 2, 2003, pp. 92-98.
 Y. A. Ghaleb and E. A. Bassim, “Environmental Assessment for Paper and Cardboard Industry in Jordan—A Cleaner Production Concept,” Journal of Cleaner Production, Vol. 12, No. 4, 2004, pp. 321-326.