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will be used again in the near future if trampers and trespassers 
can be kept off the watershed and be eliminated as a pollution 
danger. 
Need for Pure Water 
The Honolulu Water Commission, in its report of 1917 to the 
Mayor of Honolulu, stated as follows: 
''The Commission is of opinion that all water from all sources 
on this island will at no distant date be needed for agricultural, 
irrigation and municipal use, and that the preparation of plans 
looking toward that end, and covering the island as a whole, 
should be undertaken without delay, in order that those sources 
which will furnish the most water at least cost may be first 
developed." 
This Commission recommended plans towards this end which 
would utilize the waters in the five small streams and their tribu- 
taries at the head of Manoa Valley from the Waiakeakua, which 
starts just below Olympus, to the Waihii Nui in the northwest 
corner of Manoa Valley, just below Konahuanui. The present 
trail from Olympus to the Manoa-Nuuanu ridge crosses the be- 
ginning of most of these quick-spilling streams and thus ex- 
poses the water in them to ready contamination. By a mere 
glance at this region from the lowlands, it may be seen that it 
is obscured practically all the time by rain clouds. The ground 
in this region is saturated with moisture. If this water is to 
be used in the near future in the city mains for potable pur- 
poses, as it is today by residents in upper Manoa Valley, the 
danger of infection is far from infinitesimal, to say the least. 
There is not one tramper out of ten who does not pollute the 
country through which he traverses, for nature's calls are not 
to be put aside. 
Modern sanitarians place themselves on record emphatically 
as favoring any and all reasonable attempts to head off at the 
source dangerous pollution of surface waters, and assert that 
minimization of initial pollution is splendid water supply sani- 
tation. 
To delete the heavy cost of pumping artesian water for city 
use the present plans of the City Water Works Dept. contem- 
plate more extensive use of surface waters from the city water- 
shed. The burden of making these surface waters pure and 
keeping them so is now upon us. 
The dice of God are always loaded, and it is just as well to 
be prepared for the worst. It is far better to close the barn 
door before the horse is out rather than to await the teachings 
of a striking lesson from a severe city epidemic, which will be 
the cause of a generous human expedition hurried toward eter- 
nity, and receiving its tickets from a polluted water supply. 
