HomeMy WebLinkAboutDocumentation_Regular_Tab 9E_5/21/1992 At
leirtVILLAGE OF TEQUESTA
�� t WATER DEPARTMENT �, Kr��a��
3:0,,: ;(' Post Office Box 3474 • 357 Tequesta Drive C4 494Y� �. �'41
`Cif'Co' Tequesta, Florida 33469-0474 • (407) 575-6230 `, .1 s�99ahn 9
MEMORANDUM: N 2 �6‘`
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TO: Thomas G. Bradford, Village Manager
FROM: Thomas C . Hall , Water System Manager
DATE: May 15, 1992
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• SUBJECT: Authorization to Rehabilitate Wells 18 , 19 & 20
In this year ' s operating budget , the Water department has
allocated $15, 000 ' for routine redevelopment of Wells 18 , 19 and 20
located in Tequesta Park. Historical data and records indicate a
need for thorough redevelopment approximately every two years .
Earlier this year, we obtained quotes for this work on Well 18
and Layne-Atlantic of Orlando had lowest quote. They were
authorized to proceed. Subsequent removal of pump and column pipe
revealed a severe Iron Bacteria problem which had totally clogged
this Well . The pump condition itself was such that repairs were
impossible and replacement was needed. Due to the conditions found,
our engineers recommended prior to placing a new pump in this Well,
the Well be examined to determine the condition of casing and
screen. Layne-Atlantic was then authorized to video this Well so
our consultants could make a recommendation based upon video and
testing pumping results .
In the meantime, Well 19 has ceased to produce water
compounding the problem. Well 20 while producing water, is only
pumping at half capacity.
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Having redeveloped Well 18 , test pumped and determined it will
now yield its original capacity, we need to purchase a new pump
along with column pipe, complete the installation of these and move
on to Wells 19 and 20 .
I have requested our consulting engineers to review our problems
with this infestation of Iron Bacteria and make a recommendation
relative to a cost-effective and periodic maintenance program which
will enhance the life span of the new pumps .
We have concluded, but will not know for certain until pumps are
pulled, that Wells 19 and 20 are probably in the same condition.
Therefore, while Layne-Atlantic is mobilized on Well 18 and in lieu
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Recycled Paper
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Memo : Thomas G . Bradford , Village Manager •
RE : Rehabilitate Wells 18 , 19 and 20
May 15 , 1992
Page 2 -
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of formal Bid Procedures , we would like to move right on to the next
two Wells and rehabilitate those also .
Should we encounter the same harsh conditions on the remaining
two Wells in this wellfield, we anticipate spending approximately
$11 , 500 per well based upon known costs for Well #18 . We ,
therefore , are requesting Village 'Council approval for an
• expenditure up to $35 , 000 (3 x $11 , 500 = $34 , 500 ) to rehabilitate
those Wells in Tequesta Park .
I would like to further add that perhaps this is the proper time
if our consulting engineers concur , to begin planning for a stand by
only, back up well on the northside of Cypress Ridge in FY-93 .
Mr . Bill Reese who has been our consultant on this project will
be in attendance at the Council Meeting on the 21st .
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TCH/mk
c : William D. Reese , P .E . , Reese , Macon & Associates