HILL. 131

was unplatable, And bottled water had come into quite genera use for
dridking'pu poses.

 REPORT ON NEW SUPPLY.
 iln 1923 the average daily pumpage from wells was 7.5 mn on gal.
per ay. The su sequent increase to 12 million gal. per day in :125 has
for the to ploy every expedient to avert a famine until s uh time
as anew anadeq ate supply could be developed and placed in operation.
 Nez Sti es investigated. The city officials were early alive to the
ne t of evel ping a new source from which an adequate vime of
water of oved quality could be obtained. As early as 1922, nkre than
a year b fo the i tual transfer of the property, the author waa stained
to invesigi te am report upon all available new sources. ExTustive
e o extending over a period of 18 months, were m e. All
p bible s within a reasonable disene of Tampa were stud The
stu ies ed survey of ground water conditions, daily flow measure-
me t gs and surface supplies, surveys to determine the ovationn
of r profiles for transmission lines, as well as the regular cemical
and bac gical analysis of all waters.
 isou Ilede. As a result of these investigations the HilllArough
River ws Lally selected for development. The recommendaon was
b upon e large supply aviilable.and the low first cost and qierating
c as o rewith the other sources considered. The site clsen for
the umin ttin and treatment plant is 6 miles from the center of town
and .5 mile ptra from a dam and power plant owned by the Tampa
Ele rc o anysee Fig. 1).
 Se drainage area above the point of intake is Z35 sq.
 mil, m f wch consists of swamps and entirely undevelo i* land.
 Th ve is by number of springs, the largest of which, CrystaAfprings,
 flo fro to 4) million gal. per day. The dry weather flow at the in-
 tak oriin wa i estimated at. 50 million gal. per day. Studio of the
 re en f eriv r are still being carried on, and it now appears iat the
 i a fth4 minimum flow may be increased considerably.; : during
the an se a ow of 600 to 700 million gal. per day is usual.:
 e pla is located near the shore of the lake formed by the
Tic C mpany's dam. The lake, which is 12 miles in length,
im unc 65 billi n gal. below the top of the flashboards. By. securing
the eight toidraw pon this storage, which has slight value for poaer pur-
 Sthe s fe yie d of the river at the new water works intake may be
inc asked c der bly above its minimum flow.
 uaity f We er. The sanitary quality of the untreated rivlr water
is g d. ougl softer than all of the other supplies considered, this one
als req 'soft ing at some seasons of the year. During te rainy
se n e amp overflow and.a highly colored soft water result, while