The Fire Services Department (FSD) could be the source of foam found in a stream near its Fire and Ambulance Services Academy (FASA) in Tseung Kwan O.
Roy Tam, chief executive of environmental group Green Sense said the foam, which he described as “highly sticky”, could have come from industrial detergents, the Hong Kong Economic Journal reports.
Tam said the chemical waste could have contaminated the stream and urged the Environmental Protection Department (EPD) to take action.
The FSD said it conducted inspections with the EPD and the Drainage Services Department (DSD) on Saturday and Sunday to investigate if the foam was related to the daily operations of the academy.
It said firefighting foam is often used for drills that involve putting out oil fires but the waste is processed through a special system before being discharged.
On Monday, Apple Daily reported that the foam could be seen throughout the 800-meter river in Siu Chik Sha, all the way from upstream, where the FASA sewage facility is located.
It was first reported by residents of The Beaumount, with the foam reaching a thickness of 50 centimeters above the water surface at one point.
The DSD said it is conducting a separate investigation after receiving the report on Friday.
It said it is awaiting test results on water samples collected from the site.
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