In 2009, Iran's natural gas production stood at 116 billion cubic metres.
In 2010, this number rose to 138.5 billion cubic metres which shows a 19% increase.
When full, the lake holds about 500 million cubic metres of water.
The reservoir can hold 13 million cubic metres of water.
The size of the green box is 9 cubic metres.
Flows average in range from 50 to 140 cubic metres per second.
The business has reduced its water use by more than 1,200 cubic metres per year.
The area includes a natural spring of 3 cubic metres.
In 2001 water use has been estimated at between 1,350 and 1,700 million cubic metres per year.
In the last five years, he's paid on average £75 a year for about 58 cubic metres.