STOMPer Darren was at a bridge near Toa Payoh North facing the housing estate when he saw this pool of foam floating in the canal.
The foam had a distinct smell unlike the usual soap.
He tells STOMP:
"I was at the bridge outside the SPH HQ in Toa Payoh, facing the housing estates when I saw this pool of foam floating on the canal.
"There is a distinct smell coming from the canal, and it's certainly not soap.
"While I don't sense or see any danger from the smell, the sheer amount of foam floating there is disturbing, especially if the chemical content is unknown."
Foam in drain: Result of industrial waste?
Related posts: Foam river in Toa Payoh North Canal (4th March 2009)
Foam in drain: Result of industrial waste (3rd March 2009)
Why so many dead fish in Rochor River? (10th February 2009)
Water in Clementi canal turns bright blue (7th February 2009)
Dead fish clog this waterway near Toa Payoh flyover (29th January 2009)
If I'm not wrong, the large canal in the Toa Payoh North area drains into the Kallang Basin. I don't know if the foam is due to natural processes or human activity, but it definitely is a cause for concern. Given the frequency of such incidents, somehow I have a feeling that the ability of the Marina Reservoir to serve as an urban water catchment will be less than optimal.