10.80 At Sha Tin, the existing rapid gravity filters were uprated from 95 million gallons per day to 120 million gallons per day by provision of anthracite/sand filter media. The manufacture of poly-electrolyte and activated carbon dosing plants was completed and the plant installed. Two 30 million gallons per day pumpsets were installed and commissioned in the associated pumping station and a third similar unit was in position awaiting commissioning, bringing the total installed capacity to 157 million gallons per day. Civil engineering work on the extensions, which will raise the capacity of the plant to 175 million gallons per day, proceeded on programme. The three 30 million gallons per day clarifiers were substantially completed and work commenced on the erection of the associated mechanical equipment. Work is expected to be completed in mid-1973.
10.81 At Tai Po Tau Pumping Station, civil engineering work proceeded on the new pump hall. Construction of the sub-structures for the band-screen house was completed and work started on the super-structure. During the year, one additional pump of 30 million gallons per day capacity was installed in the existing pumping station, bringing the total capacity to 187 million gallons a day, and orders were placed for three 25 million gallons per day pumps for the new pumping hall. The manufacture of the bandscreen was in hand.
River Training Works at Tai Po
10.82 Consulting engineers were engaged on a feasibility report and outline proposals for training works along the lower reaches of the Lam Tsuen River at Tai Po.
North Western Water Scheme-Pollution Study
10.83 The consultants commenced field work in connection with their brief to investigate and report on stream pollution in the North Western New Territories.
CONTRACTS AND CLAIMS UNIT
Senior Engineer:
M. T. NEWTON, B.Sc.(Eng.), C.Eng., M.I.C.E., M.I.W.E.
10.84 The Unit advised on the preparation of contract documents to prevent foreseeable claims arising from contractors and examined all claims arising on projects managed by Waterworks Office and its consulting engineers.
150
10.80 At Sha Tin, the existing rapid gravity filters were uprated from 95 million gallons per day to 120 million gallons per day by provision of anthracite/sand filter media. The manufacture of poly- electrolyte and activated carbon dosing plants was completed and the plant installed. Two 30 million gallons per day pumpsets were installed and commissioned in the associated pumping station and a third similar unit was in position awaiting commissioning, bringing the total installed capacity to 157 million gallons per day. Civil engineering work on the extensions, which will raise the capacity of the plant to 175 million gallons per day, proceeded on programme. The three 30 million gallons per day clarifiers were substantially completed and work com- menced on the erection of the associated mechanical equipment. Work is expected to be completed in mid 1973.
10.81 At Tai Po Tau Pumping Station, civil engineering work pro- ceeded on the new pump hall. Construction of the sub-structures for the band-screen house was completed and work started on the super- structure. During the year, one additional pump of 30 million gallons per day capacity was installed in the existing pumping station, bringing the total capacity to 187 million gallons a day, and orders were placed for three 25 million gallons per day pumps for the new pumping hall. The manufacture of the bandscreen was in hand.
River Training Works at Tai Po
10.82 Consulting engineers were engaged on a feasibility report and outline proposals for training works along the lower reaches of the Lam Tsuen River at Tai Po.
North Western Water Scheme-Pollution Study
10.83 The consultants commenced field work in connection with their brief to investigate and report on stream pollution in the North Western New Territories.
CONTRACTS AND CLAIMS UNIT
Senior Engineer:
M. T. NEWTON, B.Sc. (Eng.), C.Eng., M.I.C.E., M.I.W.E.
10.84 The Unit advised on the preparation of contract documents to prevent foreseeable claims arising from contractors and examined all claims arising on projects managed by Waterworks Office and its consulting engineers.
150
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