They warn that the proposal to harvest groundwater resources is a short-term solution which brings long-term consequences.
Any mining or land-clearing activities in the area could trigger release of heavy metals, says Water, Land and Natural Resources Minister Dr Xavier Jayakumar.
Water, land and natural resources minister declares war against poachers to save the Malayan tiger from extinction.
He denies allegation by Najib Razak that Selangor will pay RM2.7 billion to take over Splash.
Dr Xavier Jayakumar says this is pursuant to a ruling issued by the National Land Council in March 2014.
Xavier Jayakumar says only a few points have yet to be finalised.