New Britain herald., 1918-04-23

| draft on the water system at present
! in q dry year would be 1884, $40 gal
| Ions Par day. If an allowance of only
i - per cent. Of the total draft is made
| for water una ccounted for and add
| ing an extra 10 gallons per day per
! pita for manufacturing concerns
; which would temporarily draw Il parr
| of their supply from the city during
dry year. the per capita consump-
ton would be approximately 100 gal
| Ions.
| Yield Of Present System in Dry Years
There are three rainfall gaging sta
! tons in the vicinity Of New Britain,
! one Of these is maintained by the City
of New Britain at Shuttle NJ eadoW
! and the other two by the United
| States Weather Bureau at Southine-
/ ton and Canton, respectively. in
, Comparing the rainfall as recorded by
! the cages at the above stations with
| the rainfall OH the Sudbury Water
| shed of the Metropolitan Water Dis
! trict Of MaSsa chusetts, where rec
! ord of the rainfall and runoH has
| been kept since 1875, il shows that
the average rainfall fIom 1900 to
| 1915 as determined by the locaF
| guages is 44.11 inches and on the
| Sudbury Watershed for the same per
! iOd 42.97 inches, that is the raln1aIl
| locally is 3 per cent. greater than on
| the Sudbury. The years 1905 TO 1917
were comparatively dry years and the
rainfall at the three local gag1nS sta
tons averaged for that period 40.I !
| inches while that on the Sudbury
| was 1888 inches, so that the local
rainfall in dry years is apparently
about 6 per cent. greater than the
| rainfsu on the sudbury Watershed.
In comparing the measured run
| offs per square mile obtained from
! Wcirs constructed on the Burl'nStoh
and Whigville Brook, with the run
| off on the Sudbury Watershed, 1t is
| found that the run-off Of the Std
! Lurv is greater than either the Bur
lington or Whigville Brook, but duf-
| ing the period in which measure
| ments were taken on the above lh&
| weir on each brook was submerged
ter a part of the time during Whlch
| portion of the run-oft was nov
| measured.
Taking into consideration the re-
Iative rainfall on the water sheds and
tho relative run-off Of the brooks
probably no material error Will oc-
| GU, in assuming that the run-otf OF
| water sheds in the vicinity of New
| britain is the same per square mile
as the run-off on the Sudbury Water
shed
The land surfaces tributary to the
distribution system of New Br'aIh
| are as follows:
So. miles
Shuttle Meadow reservoir $500 GOV
| Woicott Intake ...........''' o''V
! WolCott Reservoir ........... wv
| Whigville Reservoir ......... 4.oo
Total square miles o.Ho
According to the Sudbury records
| one Of the driest periods IN recent
wears was between 1872 ana 1904
IF the run off figures of the sudbury
Watershed are used for the drainage
area of the City reservoirs, the avail
ablo Weld of the present collection
system Of this city in dry years Is
| aunroximatelv 5000, 900 gallons per
day.
If the percentage of water which
| does not pass through meters is as
large as 40 per cent of the total
| amount passing into the Distribution
| system, the available yield Of the col
lection system OF this city at the pres
ont time will not furnish a suf1Clen'
| ouantitv Of water in a series or dry
wears and even if the water not pass
Ing through meters is only 20 per
cent Of the total passing into the dis
tiihution system. the city is already
,racticalIv up to the available yield
NJ the distribution system in series
Of dry years; consequently, an addi-
tionaI supply Of water should be Sc
cured without delay.
Caparity OF Watershed il Developed
to Maximum.
The average yield of land surfaces
Of the Sudbury Watershed has been
about $780, 900 gallons per day per
square mile. Taking this as the
probable yield Of the New Britain
| watersheds which cover approximate
! ly S1a square miles will give a daily
| run-off Of 9,265,000 gallons; deduct
ing | 0 per cent. for waste and leak
age would leave S.33S 800 gallons as
/ the yield OF the present watershed if
| developed to the fullest capacity prac-