Taikoo Shing Water Quality Safe After Black Particles Confirmed as Inert Bitumen, WSD Assures Residents

Test results and WSD's follow-up work regarding water supply incident affecting some Taikoo Shing residents

Regarding the appearance of black particles in the drinking water of some buildings in Taikoo Shing, the Water Supplies Department (WSD) had earlier collected water samples from some households, sump and roof drinking water tanks for testing. A spokesman for the WSD stated tonight (November 16) that the analysis has just been completed, showing that all water samples have met Hong Kong Drinking Water Standards. The small amount of black particles found in the samples were confirmed to be bitumen. It is believed that water pressure changes caused by WSD's temporary redirecting of water supply near Taikoo Shing last night stirred up bitumen sediments inside the pipes. These sediments are inert substances and pose no harm to human health.

The black particles in the drinking water of some buildings in Taikoo Shing, Photo source: Facebook

The spokesman said that the WSD had already issued a press release earlier today explaining the cause of the incident (https://www.info.gov.hk/gia/general/202511/16/P2025111600466.htm), adding that the damaged filter at the estate's public water inlet was repaired last night, and pipe flushing has been strengthened. To minimise inconvenience to residents, the WSD, together with the estate's property management company, arranged for cleansing of the sump drinking water tanks of affected buildings starting tonight at off-peak water usage hours (around 12:30am), expected to finish by dawn. Cleansing of roof drinking water tanks will follow tomorrow morning during off-peak water usage hours, with completion expected within the day. After these follow-up actions, the situation of black particles in drinking water is expected to improve significantly.

Further investigation showed that the affected buildings are mainly in phases four and five, totalling 14 blocks, about 20 per cent of the estate. WSD staff have been dispatched to work with the property management office to assist residents in flushing water meters and water heater inlets. As of 9pm today, about 100 water meters have been flushed, and more than 20 technicians have been arranged to flush electric water heater inlets. These actions will continue tomorrow.

To reassure residents, the WSD will continue to place water trucks and tanks in the estate to provide temporary water supply services, and set up a service counter and work together with the property management office to answer residents' enquiries immediately. If residents notice abnormalities in their drinking water, they should notify the management office at once or call the WSD customer service hotline at 2824 5000, and arrangements will be made promptly for follow-up.

The spokesman added that to prevent occurrence of similar incidents in the future, the WSD will not only conduct routine regular inspections of the estate's inlet filters, but also check the filters before and after pipe maintenance works to ensure they remain in good condition and can effectively block sediments stirred up during such works.

The Water Supplies Department, Photo source: news.gov.hk

Employers, contractors and employees should be aware of electrical safety at work during rainstorms

As the rainstorm warning has been issued by the Hong Kong Observatory, the Labour Department (LD) reminds employers and contractors that they should adopt necessary work arrangements and take suitable safety measures to protect the safety of their employees when they are carrying out electrical work or handling electrical plant.

A spokesman for the LD said today (March 3) that employers and contractors should avoid assigning employees to carry out electrical work (such as electric arc welding work) or handle electrical plant at places affected by rainstorms, and should refer to the "Code of Practice in Times of Adverse Weather and 'Extreme Conditions'" and the "Guide on Safety at Work in times of Inclement Weather" issued by the LD.

Even if electrical work is carried out or electrical plant is handled at places not affected by a rainstorm, suitable safety measures must still be adopted to prevent an electric shock as the air would be more humid. Such measures include:

(i) Ensure that all live parts of an electrical installation are isolated from the power supply source and rendered dead, and the isolation from the power supply source must be maintained as long as electrical work is being carried out;

(ii) Before carrying out any electrical work or handling any electrical plant, cut off and lock out the power supply source, then test the circuit concerned to confirm that it is dead and display suitable warning notices, and issue a work permit thereafter;

(iii) Ensure that protective devices (such as suitable and adequate fuses and circuit breakers) for the electrical installations or electrical plant have been installed and maintained in good working order, and portable electric tools must be double-insulated or properly earthed;

(iv) Provide suitable personal protective equipment such as insulating gloves and insulating mats for employees; and

(v) If live electrical work is unavoidable, a comprehensive risk assessment should be conducted by a competent person and the appropriate safety precautions should be taken to remove or properly control the electrical hazards involved before such work can proceed.

In addition, employees should co-operate with the employer or contractor to follow the safety instructions and use the safety equipment provided.

The LD has published guidebooks and leaflets on electrical work safety. These safety publications are available free from divisional offices of the department or can be downloaded from its website (www.labour.gov.hk/eng/public/content2_8.htm).

Should there be any questions about occupational safety and health matters, please contact the Occupational Safety Officer of the LD at 2559 2297.

Source: AI-found images