Vol. 16—1962 - NorthEastern Weed Science Society

401
FIELD PROCEDURES
Although. the ~~estwell water did not re"..lsignificant concentrations
of iodine, as an extra precautionary maasure both the South I.
and West well chlorine feeds were increased to .3 ppIl. This resulted in
immediately abol1shingthe iodoform tastes from· tbli cfi>tllbinedwaters
from the wells.
The West well chlorine feed was then reduced to its normal .feed
With no il1-eftects in te~ms of:tastes.
The Sooth well ohlorine :teed was maintained at .3 ppm for the
next two months aftArwhi'lh it waa'det:I'eased in sllla'll increments to
ascertain !Whether t:,edisagreeaoleta3te would r.etnrn. It was found that
the ohlor:imefeedwas eV9ntuall,v'returned to normaiwithout resultant ill
effects.
For tbenext eight months, there was no 't'lrthtr eVidenoeof a '
taste problem. HoW'ewl', in Septeirber 1961 it rppJleared, immediately
following Hurricane Esther. The clulorine dosage was 1l'loreased, and the
taste immediately disappeared.
At present, the chlor1neteed has been ~ned to nomal, and
there is no evidenoe of a taste problem.
A recent analyses obtained on November 2, 1961 revealed an
iodine content in the South well to be 0.05 ppm (irlsuftioient to produce
a diSagreeable taste). A bottom sample of South Lake revealed a concentration
of 0.28 ppm iodine. This' 'is considerablrlllss than the concentration
found in this lake on January lit 1961 (0.65 }lIIilm)but indicates that
the effects have' not yet been fullY' dissipated. ,I
CONCLUSIONS
The taste problem that occurred on three aeparate occasions