Q 115
Works carried out and chargeable to Loan Funds.
(c) Filtering Plant and Erection. This plant was brought into operation on June 10th, being run for 8 hours per day in order to supply Piper's Hill Service Reservoir with approx. 1.0 million gallons per day. The results of Bacteriological and chemical tests have been satisfactory. A Paterson type Fluxograph to record the quantity of water passing through the plant was installed in February.
Total Estimates, $199,694.35
Expenditure up to 31.12.29, $200,048.14
(d) Service Reservoir, Shek Lai Pui. Steady progress was made with the excavation of the Eastern half of the reservoir resulting in a commencement of the concrete invert by the middle of June. Early in August concrete work in the main walls and piers was commenced and continued steadily to the end of the year.
Towards the end of November the timbering & placing of reinforcement for the roof was commenced.
During the year the following concrete work was completed:
Invert 195 bays 15′0″ x 12′0″
Piers 165 No.
Main Walls 553 lineal feet.
Division Wall 116 ""
As the excavations were proceeding it was found economical to enlarge the size of the service reservoir to give a capacity of 11.5 million gallons.
Total Estimates, $400,000.00
Expenditure up to 31.12.29, $127,155.27
(e) Pipe Line. The laying of the 24″ steel main in Nathan Road was continued and by the end of May it had been laid to Prince Edward Road. The section above Cheung Sha Wan was completed in May by the laying of 560 lineal feet of 24″ main to the site of Shek Lai Pui Service Reservoir. From this point a temporary 12″ C. I. main 360 lineal feet in length was laid to the Shing Mun Rapid Gravity Filters.
A 24″ x 11″ Self Closing valve with recording apparatus was installed at a point approx. 560 lineal feet below the Shek Lai Pui Service Reservoir and a valve house built.
The pipe line was brought into operation on June 10th, to feed the Piper's Hill Service Reservoir from the Shing Mun Rapid Gravity Filters.