ADDITIONAL WATER SUPPLY 
Continued from first page. 
proximity to a possibly increasing popu- 
lation. It would probably cost compara- 
atively little and would enable the town 
to tide over for many years the question 
of an additional supply involving large 
expenditures, and advance the question 
of change to a period when the burden 
could be more easily borne.’’ 
But before proceeding further he 
touches upon the. matter of population 
and shows that if the present increase 
keeps on it is reasonable to suppose that 
within ten years more the present total 
population of 3400 will be increased to 
5000 people, including the summer col- 
ony. And if the population increases as 
above the consumption will increase ac- 
cordingly. 
With this in mind he says: ‘‘ Look- 
ing at the matter broadly it seems evi- 
dent that in consider‘ng an additional 
supply of water, we should demand a 
source capable of yielding at least 500,- 
000 gallons daily throughout the year, 
and that if possible we should incline to- 
wards that which shows promise of a 
capacity for increase in the future to 
1,006,000 gallons daily. With an aver- 
age daily consumption of 500,000 gal- 
lons the supply should be also capable of 
yielding for short periods at least 1,500,- 
000 gallons daily.”’ 
Then having thus arrived at a con- 
clusion as to the amount of water which 
Manchester needs, he passes on to an 
examination of those sources which are 
available and discusses their several 
merits. 
The cost of developing the Saw Mill 
Brook source he believes is ‘‘ prohib- 
itory.’’ He says further, “‘I am led to 
the conclusion that the development of 
this system should only be resorted to in 
the case of there being no better pros- 
pect in view, and even then it would be 
wise to provide some additional storage 
above ground. ‘Ihe town should, if 
possible, secure some source of supply 
where the question of quantity can be 
placed beyond a_ reasonable doubt.’’ 
He still further disposes of this source by 
saying that the water contains iron in ob- 
jectionable quantity, necessitating some 
form of purification, probably aeration 
and filtration, which would be a source 
of continuous trouble and expense, even 
when carried out and maintained under 
the best possible scientific supervision. 
On the other hand—‘‘ The quality of 
the water at Gravel Pond is beyond 
question for a surface supply. It is 
colorless, clear, soft and free from ob- 
jectionable taste. The reason for the 
exceptional quality of Gravel Pond water 
is that there is no swampy water draining 
into it, and that the watershed is so small 
that the water is improved by being held 
along time in storage exposed to the 
NORTH SHORE BREEZE 
sun’s rays.’” 
Mr. Fitzgerald places the measure of 
efficiency of Gravel Pond at 135,000 
gallons daily, and says this is inadequate 
as a source of supply, but adds that ‘‘ The 
pond, however, has so many excellent 
characteristics, and is so favorably situ- 
ated, that it would be of great value if it 
could be reinforced from some outside 
source.’” Asan “‘outside source’’ he 
suggests Round Pond. While this latter 
water is not as good as that of Gravel 
Pond, it may be used in such a way as 
not to harm the latter water. 
“Taking everything into consider- 
ation,’’ he says, ‘“I believe Gravel Pond 
to be by far the best source of supply for 
Manchester to adopt. With the two 
supplies of water, one of ground water 
at Saw Mill Brook, and the additional 
‘supply at Gravel Pond, the town of 
Manchester will be in a peculiarly favor- 
able position to supply its inhabitants with 
water of excellent quality. If in the 
future, for any reason, it becomes wise 
to abandon the Saw Mill Brook supply, 
the whole supply of the town may be 
taken from Gravel Pond.”’ 
In concluding his report Mr. Fitz- 
gerald says that ‘‘from a general expe- 
rience in water works construction, I am 
satishied that the Gravel Pond supply 
will prove the cheapest in the end and 
that the development of this supply will 
de within a reasonable expenditure for 
the town at this time.”’ 
The committee in talking up the pre- 
paration of plans for the development of 
the supply on the lines suggested by the 
engineer, went to work along the fol- 
lowing lines, the installation of a high 
service being assumed: (1.) A force 
main from Gravel pond to the present 
force main at Vine and School streets, 
and a connection witha new standpipe 
on Moses hill; (2) a pumping station 
with necessary pumps, boilers and en- 
gines at Gravel pond and dams at Gravel 
and Round ponds; (3) a standpipe on 
Moses hill; and (4) a new equipment 
of engines at the present pumping sta- 
tion, designed to pump to the new 
standpipe. 
They estimate the cost of the pipe 
line as follows: 
Gravel Pond to Pleasant Street $39, 000 
Pleasant Street to Vine Street 14,000 
Force main to Standpipe 3,000 
Total, . $56,000 
Then there is the plant at Gravel 
ponds, dams, etc., and the pumps at the 
pumping station would have to be re- 
placed, and then there is the new stand- 
pipe. The estimate for all this (exclu- 
sive of land damage) is given as follows: 
Pipe lines $56,000 
Dams 3,000 
Gravel Pond plant 45,000 
New plant, Manchester 14,000 
Standpipe 27,500 
Total, $145,500 
aaa « 
““ This amount, it will be noted, is for 
the construction of a plant capable of 
handling, with the greatest economy, 
not only the additional supply needed at 
the present moment, but the almost cer- 
tain growth in the near future. | 
‘* Assuming that the new plant cost | 
$160,000 and that bonds bearing 4 per | 
cent. per annum were issued, payable, 
as are the present ones, $6000 per year, 
the addition to the fixed charges would 
be as follows: — 
Gravel Pond maintenance $1,800 
Retiring bonds 6,000 | 
Interest, on bonds 6,400 
Total, $14,200 
Less saving in coal by new pumps 500 
$13,700 
As a-result of the investigations made 
under their direction the committee pre-. 
sent their findings as follows: 
1. That there is a real and increasing 
need for an additional supply of water in 
the town of Manchester. 
2. That in the judgment of their en- 
gineer and the State Board of Health, 
after thorough and careful investigation, 
the best and most practicable source of 
additional supply, of the quantity and 
quality necessary, is found in the use «of 
the waters of Gravel Pond, reinforced in 
the future by the waters of Round Pond, 
treated by filtration. 
3. That any development of | this 
source should be made in‘anticipation of 
the installation of high service, and that 
the town should secure the land for the 
new standpipe. 
4. That the cost of a complete addi- | 
tional plant, with high service standpipe 
and new pumps at Manchester, should 
not exceed $160,000, including land 
damage; and that the additional yearly 
fixed charge, resulting from the opera- 
tion of the new pumping plant four — 
-months in the year, and the retiring of 
$6000 in bonds per would be 
$13,700. 
5. That if high service is omitted 
and the present pumps continued for a 
time in the Manchester station, the cost 
of construction of pipe line and works 
year, 
_at Gravel Pond,’ as described, should not 
exceed $115,500, including land damage; 
and the yearly fixed charge under the 
same conditions, as in the last case, 
would be $11,920. 
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