LAMMA residents were assured yesterday that the disposal of sewage around the island would not have a major impact.
The assurance was given as legislators on the environmental affairs panel were informed of recommendations by the three independent experts on the Government's Sewage Strategic Disposal Scheme.
One recommendation was to adopt chemically enhanced primary treatment to help disinfect the sewage before it was discharged into the harbour.
But the chemicals used could stagnate the water, damaging marine ecology and increasing bacteria.
The enhanced treatment would allow the sewage to be dumped in Hong Kong waters instead of adjacent Chinese waters as originally planned.
China had vehemently attacked the original plan as immoral and unscientific.