BUTTERWORTH: A factory in the Prai area here has been slapped with four compound notices for allegedly discharging effluents and failing to maintain its pollution control equipment. The premises was ordered to close by the Penang Department of Environment (DoE) and will only be allowed to resume operations after satisfactory repairs have been made. State DoE director Sharifah Zakiah Syed Sahab said it acted on public complaints about a "coloured discharge" from the factory. “The factory had obtained approval from the International Trade and Industry Ministry to operate. “The enforcement team seized equipment under Section 38 (1) (a) of the Quality Environmental Act 1974 for further investigation.