1933-07-22 — Page 3

HONG KONG DAILY PRESS SATURDAY JULY 1933.

MACAO WEEKLY SUPPLEMENT

of Macao's Water Supply

The Problem

Problem of Macao's

HOW IT IS

✔ GOING TO BE

SOLVED

CAREFUL RESEARCH MAKÈS WEST

RIVER WATER AVAILABLE

By ** OBSERVER**

"They are doing big things at Macao these days. But that was not always so and there was a time when criticism of Macao was severe, but the reasons for those criticisms are disappearing, and Macao is forging ahead. Not least amongst signs of awakening are the efforts that the Portu "guese have made to furnish the colony with a sufficient supply of good water. To understand this a short review of the position will not be out of place.

HOW THE PROBLEM HAS ARISEN

Revoming old mains to lay new ma'ns in the City..

5.

TEEN VISITS WIMBLEDON

WELCOME FROM BIG CROWD.

(Special Alz-Mal Service)

WIMBLEDON, July 4, The Queen was prefent at the fifth day of this record-breaking Wimbledon, and watched some very interesting games.

Her Majesty, who sat in the committee-bag between her bro- ther, the Earl of Athlone," and King Alfonso of Spain, spent four. hours" yesterday watching a keen international programme. She re- ceived an enthusiastic greeting from the enormous erowd, ol spectators which had assembled. ¿

Wearing dark glasses and anima- tedly discussing the play with King Alfonso „the Queen watched with close attention.

الر

Borotra's How.

da Jean Borotra camo on with Bragaon to oppose the British Em pire pair. P. D. B. Spence and O. R. D. Tuckey, in the doubles he msde a stately how to her Majesty.

Among the games the Queen iaw was that in which Mlle." Påyot, champion of Switzerland, just beat Mrs. Whittingstall, who recovered from 6-3 in the final set.

Macao consists of the peninsula factory supply soon became inade. ing artesian supplies of water with-Portuguese engineers had left of who beat him in four sets; and

of that name linked to the main quate and unsuitable in the light land by a narrow isthmus; whilst of modern engineering and modern the island of Taipa and the island conceptions of hygiene. of Colowan form the insular de In the meantime, the danger pendencies of the colony. The from fires had already arisen add peninsula itself is barely after considerable thought and miles in area, the island of Taipa study the Portuguese installed. is little more than 11 sq. miles and early in the 20th century, a system Colowan is probably a little over of mains with hydrante in the 3 sq. miles in extent. The hills in principal streets fed from a reser all these places are low. Guit voir which was built on the top of Hill in Macao is barely 300 feet Guis Hill. This reservoir in turn high bat Colowan offers hills about was fed by a supply of water 500 feet in height.

pumped up from the sea in the outer harbour. As the need for ex- tensions in the system became felt the mains have been extended and

In the colony's early days Chin esa did not reside in the city, so that even up to the end of the 18th

One of the Water Company's Coagulation Tanks.

century the population of Macas at the present time represent a to- was barely 3,000 souls. Since then, i tal length of 17 kilometres of mains however, things have changed for laid for the purpose of fire fight when Chinese were permitted to ing and street cleaning. own property in Macao the popu lation of the Colony increased rapidly.

Water Supply Outstipped.

Proposed Reservoir at Colowan The studies of the Portuguese engineers having caused them to realize that it was necessary for About 50 to 60 years ago the po. them to augment the quantity of pulation had increased to such an water for use in Macao, they found extend that the springs on the few that it might be possible to secure hills no longer sufficed for the supplies from a vast catchment water supply of the people, and area in the island of Colowan, a recourse had to be had to the dig miles away. to supplement the ging of wells and the securing of meagre fow from the streami on water from Lappa, Island, from a the hills in the peninsula, but the famous stream called by the Por- reason, why no advantage tuguese "Ribeira Grande," and taken of this locality for the con- was Silver Stream" in Chinese. The struction of a reservoir was that population increasing from year the Portuguese proposed to trans to year, however, the Portuguese port the water that might be so authorities have tried to secure a cured from Colowan, to the penin- solution to the dificulty; for what sula by water boats, and owing to was at one time considered a satis the distance to be traversed and the

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difficulties caused by the shallow the subject, and as this was not reaches and mud banks any pro-granted the Siemens China Com posal to develop the water re-pany were invited to help to solve sources of Colowan was left in the-problem. abeyance.

Messrs. H. Woltemade and G. A, At least nas Portuguese engineer Figueiredo of the Siemens Company thought of the possibility of secur then took up the problem where the

in the peninsula. Colonel Trigo, and after careful study recommend who devoted many years of studyed that for potable water it would to the problem was so convinced be advisable to impound rain fall that it would be possible to secure ing on Colowan Island at a place a supply, not necessarily of artesian called disc-Pai-Wan The storage water but of ground water, that he area in that island would guarantee constructed extensive works in the Vicinity of Guia Hill. These works comprise a barrage, for the collec- tion of water and the processes of filtration. He also built a gallery of deep welty along the foot of the ridge of the same hill. Re thus succeeded, after painstaking ef forts, in securing a supply of water which would assure a regular daily supply of 50,000 to 100,000 gallane a day for the most urgent needs of the city. This water he has served to the public through a system of maina and street fountains, the mains running to a total of 7 kilo- metres in length. Though limited ia quantity the works established have been maintained since their in

Clean Water Storage Raservoirs

process of construction.

She watched also the double- handed Italian champion, G. de Stefani, oppose J. Batoh of Japan;

between H. G. N. Lee and I then stayed through the great-duet Stoefen, of California, won by the American in âve seti.

served with a regular supply for the first time in its history. The mend bers of this Council were Mere H. Nolamo, da Silva (Chairman),

A. A. de Mello, J. J. Gracias,

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da Silva, Captain Conceição, too, as Chief of the Fire Service, was able to furnish valuable informa; tion based in his experience extend- ing over many years. The present. Governor, Lt. Col. A. J. Bernardes de Mirands, has given great, e¤--; in couragement and help to the Com

pany, and so has Dr. Pedro Hochs Santos, who is acting as Governor during Lt. Col. Miranda's absence in Portugal.

stallation and the service thus ren-supply of at least 600.000 gallons

Water Company's Filters being installed.

dered to the Colony by Colonel Tri- go is worthy of the highest praise. He intended going more deeply into the study of the problem but he returned to Portugal without being able to complete his investigations.

Further Expertinents.

a day, in any year of average rain- fall, with possibilities for exten- sion. These engineers proposed that the water should be delivered to Macao by submarine pipe line from Colowan Island...

West River Supply.

For the non-potable requirements of the colony the engineers recom- mended that the water from the West River flowing past Macao, and which is the cause of the continuous silting of the harbour, be collected and allowed to settle and after puri fication be delivered into the city. This was the proposal as it was first made.

|

The studies of the engineers were completed in March 1932, and it was some time before the necessary alterations could be made to render the scheme workable under the Con- cession Agreement, but at last all obstacles were removed and the, Company began work in earnest," The operations were commenced in. November last year and the first supply of water will be available within a very short time, in probab- ly less than a month,

will be read with great interest by A short description of the workų those who follow events at Macao, who are interested in the problem as well as by engineers and others

of water supply, for the system st Subsequently, the engineers, after Maces is probably the first of its. careful analyses of the water dai-kind to be built in the Far East, ty, recommended that it might be possible to avoid, the double system of mains, and this the company haa been endeavouring to do

Co-operators in Schame.

Batisfactory Source.

The river water that deposits ite A few years after the death of

daily quota of silt around Macao. this enterprising director of the sent stage to state definitely that ply of scores at cities that draw It would be premature at the prong worse than the sources of sup Public Works, & Portuguese resi- the company has succeeded in over their water trom rivers, and the dent of Honolulu, Mr. Francisco coming the dificulty presented by Macsa Waterworks Company will Santos by name, having achieved a this problem but reports woulr tend gather this water, in the full as certain amount of success with sup to show that it should not be diffi- earance that modern methods of plies of artesian water in the Macao made a proposal to the very great saving to consumers who pumps, the capacity of which will Hawaiian Islands, on a visit to mains, for this would represent a for use, delivering it by powerful cult to avoid the double system of purification will render it suitable

taking to furnish abundant water two separate systems of piping in Jarge Settling Reservoir. From this Municipal Council of Macao under would not be called upon to install be. 250,000 gallons per hour, into a for the requirements of the city their houses from artesian wells. A concessio

reservoir special high-speed pumps. was granted to this gentleman who

will draw the water into, congula- then secured the support of some

tion tanks, Here the coagulants friends in Honolulu, whose repre-

are introduced, the quantity of sentative Mr. Wong Goon Let is work being carried out by the Comically, and after treatment, all im Honour for the success of the chemicals being regulated automa still associated with the reorganiz pany does not go to the Company parities being drawn off, the water ed Company. After three well had alone for were it not for the earnest is conducted to the Rapid Filters. been drilled it became clear that artesian supplies of water did not co-operation of those of the local From the filters the water is splash exist within the peninsula, and the authorities who have intervened ined into Clear Water, Tanks, where company was on the point of giving unsolved. Dr. J. Magalhaes as the water is emptied into the the matter the problem would still constant aeration is kept up, and up its efforts when a few Macno horse acting Governor, authoriz Pump Wells, the High Lift Pampa gentlemen, led by Mr. J. M. Brage, ed the necessary alterations in the draw of the water for delivery into Dr. Low Yeuk Lin, and Mr. J. Concession: Contract to enable the the city mains, chlorine gas being Gellion, with the help of Mr. Wong new studies to be made, deserves introduced at the same time. Goon Let, offered, to co-operate, in finding some other solution. At the the thanks of the Colony and the

A special feature of the works is request of these gentlemts the focal to the solution of the difficulty unit employed, while Diesel engines greatest credit for his contribution"

the use of duplicate sets of every Authorities asked the Hong Kong Colonel A. J. Guimaraes Lobato, are able to substitute for the elec Government to grant permission for Administrator of the Insular De-tric motors in case of need. All the one of the water engineers in Hong Kong to give his expert opinion on pendencies of Macso, who placed all machinery is installed in a special his resources at the disposal en Engine Room, the equipment all gineers in the preparation of their being supplied by the Biemens Com studies, also rendered very great pany The Water Company abo service. Mr. P. J. Lobo, Inspector operates a laboratory which will be of the Economic Research Depart fully equipped, and where hourly ment, gave valuable assistance, by

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his help, for his reports on the Com-tests of the water delivered by the pany's proposals made the Company Company will be made, the chemist modify its requirements in such a doctor of science.

in charge being a fully qualified manner as to be acceptable to the local authorities. Though the Company is commenc

ing its supply for the residents of The Municipal Council that studi the. Colony by providing water from ed the problem as it way presented the river first, the scheme to use by the Company was subjected to water pumped from Colowan Island considerable eriticism on the part to Macao by submarine pipe line, of certain interests, "but the Coun;| was the original basle for the stu-1 cil realized the value accruing to dies carried out by the Siemens

tory to

the colony from the solution of the engineers, and detailed studies pre- Enroblém und was prepared, to make the necessary, alterat in the con tract to ena

inauguration of lowan re already in

which more will be. heard as the project develops.

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