Vol. 16—1962 - NorthEastern Weed Science Society

402
prior disturbance ot the lake bed. The offending well was, in ea~h oil"" "
the well located imDIld1ately adjaent t.o the o'ferftoW'dam ot South Lake
(South well). The well located:,atrthe tar end of \au"same lake did n~'
exhibit8l)y:taste problema (ifut·.wellh ,':"J',I;,
In addition. the conoenvaticm ot iodine::wa. cCMiderably
greater at the lake bottom as callpared to the concentration found in '.:
the lIe11 water.
These considerations re.ulted in the the'Clll'Ythat the iodine:lf.'
present at the bottom of the lake ,and, tollavr:Lng cSistlU'bance of the bottom,
significant alllOWltsof iodine found its way into t'be South well supply.;':'
The reason tor the contamination ot the South well suppl;r and I':
not the West well l!IUpplycan be attributed to the :tact that the tlow
pattern in South Lake is away from the Viestwell and toward the South - ,­
Well. Further,;:it appeared poSldJ:lle that the1odtJJe· was concentrated
in the illD.ediate Jr88 of the 'OWU'fiolf dam (bd SClIIi;h.:. _U).
The 8Q1rce of the iodilrJe. of course, ~ a IIG'stery. It'
did not appear feasible that the disturbance of 1:bt'14ke bed alone was
significapt in it.elf ,.ince o~;QisturbaDces ba4 outainly been encountered
prior to this past ;,ear 1f1tboUttbe prQchlCltion of disagreeable '
tastes. Neither oculd the herb.101deitself b.etezwed,'the cl1rect respoas:1ble
agent since ,its chemical ~updcel'Jnot include _torm of iodine. r,
The onlY remaining SQlrc •• then, appeand to be the undes1rab3let
plant Il'mbathatwere ett,ouw~ destro;,ed: by the herbicide. PossibJiF
these .f'resh-Water plant lVowthlS, upon beingdestrapd, resulted in the
release ot iodine Which eventu.U7 settled to' the ,/lab bottom.
Seaweed (or kelp) is known to be a significant source ot iod~;)
althougn these are of salt-wat,r,origin.