Seletar Reservoir is a reservoir located north of Yishun New Town. The 3.6 km2 reservoir holds 9.5 million m3. The reservoir’s depth ranges from 2 to 5.5 m. It’s 14.3 km long.
It was built by the Sungei Seletar/Bedok Water Scheme in 1986. Bedok Reservoir and Bedok Waterworks were built in a former sand quarry. It had nine stormwater collection stations to capture urban runoff. All of these areas have ponds.