SHAH ALAM: The Selangor state legislative assembly was today told contamination was the reason the water treatment plants in the state had to be shut down 744 times from 2008 until June this year.

The state’s Environment, Green Technology, Science, Technology and Innovation, and Consumer Affairs Committee chairman Hee Loy Sian said the involved water treatment plants included Sungai Selangor, Sungai Langat, Sungai Semenyih and Sungai Gombak.