The green water that had pooled in a canal in Yishun Close in Singapore was caused by the discharge of wash water contaminated with water-based ink, said the National Environment Agency (NEA) on Aug 27.<br /><br />In response to media queries, NEA said the colour of the water has returned to normal and that it continues to monitor the situation.<br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
