HomeMy WebLinkAbout2005-199 r �l - d5
WORK ORDER NUMBER 9 r
This Work Order Number 9 is entered into as of this 7th day of June
2005 pursuant to that certain Continuing Contract Agreement for Professional Services
entered into as of April 6 , 2004 ("Agreement") , by and between Indian River County , a
political subdivision of the State of Florida ("COUNTY" ) and
Kimley- Horn and Associates Inc . ( "CONSULTANT") .
The COUNTY has selected the Consultant to perform the professional services set
forth on Attachment 1 , attached to this Work Order and made part hereof by this reference .
The professional services will be performed by the Consultant for the fee schedule set
forth in Attachment 1 , attached to this Work Order and made a part hereof by this
reference . The Consultant will perform the professional services within the timeframe
more particularly set forth in Attachment 1 , attached to this Work Order and made a part
hereof by this reference all in accordance with the terms and provisions set forth in the
Agreement . Pursuant to paragraph 1 . 4 of the Agreement , nothing contained in any Work
Order shall conflict with the terms of the Agreement and the terms of the Agreement shall
be deemed to be incorporated in each individual Work Order as if fully set forth herein .
IN WITNESS WHEREOF , the parties hereto have executed this Work Order as of
the date first written above .
CONSULTANT BOARD OF COUNTY COMMISSIONERS
Kimley- Horn and Associates Inc . OF INDIAN RIVER COUNTY
B G�Gj• By S . �✓- C -i
Thomas S . Lowther ,, ghairman
Title : V/ c louj5 '
Attest : J . K . Bar#bn , Clerk of Court
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B
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Deputy Clerk '
Approved :
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/Jar(k6n
ph A . Baird , County Ad inistrator
r ed o form and legal sufficiency :
E . Fell , Assis nt Attorney
HAGeneral\Miller\Indian River County\WORK ORDER NO 9 .doc
1 '
ATTACHMENT 1
Scale Inhibitor System Review
South RO Plant
Project Description and Understanding
The following provides an approach to consider eliminating scale inhibitor addition to the
raw water at the South RO plant . The use of scale inhibitor at membrane treatment facilities
is sometimes unwarranted where raw water quality does no exhibit sparingly soluble salts
which tend to scale at high membrane system recoveries . Since acid is used both to prevent
scaling of the membranes and enhance removal of hydrogen sulfide at the post-treatment
system through lowering of the pH , it should be determined if acid provides adequate scale
inhibition without the use of scale inhibitor.
SCOPE
Task 1 — investigate Elimination of Scale Inhibitor
Define water quality from wells :
Specific water quality parameters which cause scaling will be identified and a list prepared
for a lab to test each well . Laboratory and coordination costs to be provided by Indian River
County.
Review raw water data
These results will be tabulated and used to prepare membrane projections for worst case
scaling potential . Blending of certain wells may also result in worst case water quality and
will be evaluated . A matrix of water quality parameters will be prepared and reviewed .
Run and review projections with membrane manufacturer
We will run numerous projections and identify the worst case scaling potential without scale
inhibitor. We will review these projection with Hydranautics and acquire consensus that
specific operating conditions can be implemented without any long term scaling potential .
Provide recommendations
Based on the results and evaluation of projections , we will provide a recommendation which
may justify elimination of scale inhibitor.
Task 1 Alternate — Coordinate Bulk Tank Scale Inhibitor installation — (if neeessar
If the use of scale inhibitor continues, the installation of 2 — 3000 gallon black HDPE tanks
is required . We believe that the best option for installation of the two tanks is through the
existing North outside wall . The existing tie-beam carries the roof loads , of which the
existing windows and CMU block below it adjacent to the columns can be removed safely to
allow for installation of the two new tanks . Installing the tanks from the south double doors
does not appear to be a better alternative since this wall may be load bearing, carrying the
capacity of the upper floor hollow core roof slabs .
F. \Utilities\UTILITY - EMPLOYEE FOLDERS\Teny Southard\Agenda Item - Kimely Hom Scale Work Order 9 May 2005 doc
Provide layout plan/details
We will prepare a layout plan with details and/or photos for a contractor to install new tanks
with interconnecting piping and access for bulk deliveries . A brief phasing plan for removal
and replacement of the wall will be provided.
Coordinate w/ GC to install
We will attend one meeting with one general contractor selected by Indian River County,
assuming that an on- call contractor or change order to a current contract will be let .
SC'. HEDITLE
We will provide these services on a mutually agreed upon schedule .
FFF,S
Consultant will provide these Services as described herein on a lump sum basis for a fee of $4, 500 .
SERVICES NOT PROVIDED
1 . Bidding phase services, construction phase services, review of submittals , on- site
inspections of work , and coordination of startup of new storage systems is not provided .
2 . Permitting is not provided, including FDEP permits and building department permits .
Contractor is assumed to pull building permits .
3 . Electrical is not provide .
Consultant will provide these services in accordance with our Continuing Services Contract
Agreement for Professional Services dated April 6 , 2004 with Indian River County.
F:\Utilities\UTILITY - EMPLOYEE FOLDERS\Terry Southard\P.genda Item - Kimely Horn Scale Work Order 9 May 2005.doc