R07-057
II
1 I I RESOLUTION NO. R07- 057
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3 A RESOLUTION OF THE CITY OF BOYNTON BEACH,
4 FLORIDA, APPROVING AND AUTHORIZING
5 EXECUTION OF TASK ORDER NO. U07-1-1 WITH
6 ARCADIS U.S., INC., TO PROVIDE ENGINEERING
7 SERVICES RELATED TO THE EAST WATER
8 TREATMENT PLANT CHLORINE CONVERSION
9 PROJECT IN THE AMOUNT OF $67,634.00; AND
10 PROVIDING AN EFFECTIVE DATE.
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13 WHEREAS, on July 17, 2006, Task Order U06-1-1 approved Arcadis to prepare an
14 Infrastructure Rehabilitation Evaluation of the East Water Treatment Plant; and
15 WHEREAS, City staff recommends the City move forward with Task Order U07-1-1
16 to provide engineering services for Phase II - Design and Permitting to replace the existing
17 gaseous chlorine system with bulk sodium hypochlorite; and
18 WHEREAS, the City Commission of the City of Boynton Beach upon
19 recommendation of staff, deems it to be in the best interest of the citizens of the City of
20 Boynton Beach to approve and authorize the execution of Task Order No. U07-1-1 with the
21 Arcadis U.S., Inc., to provide engineering services related to the East Water Treatment Plant
22 Chlorine Conversion Project in the amount of$67,634.00.
23 NOW, THEREFORE, BE IT RESOLVED BY THE CITY COMMISSION OF
24 THE CITY OF BOYNTON BEACH, FLORIDA, THAT:
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Section 1.
The foregoing "Whereas" clauses are hereby ratified and confirmed as
26 being true and correct and are hereby made a specific part of this Resolution upon adoption
27 hereof.
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Section 2.
The City Commission of the City of Boynton Beach, Florida does
29 hereby approve and authorize the execution of Task Order No. U07-1-1 with the Arcadis U.S.,
S:ICAIRESOlAgreementslTask - Change OrderslArcadls - U07-1-1.doc
II
1 Inc., to provide engmeenng services related to the East Water Treatment Plant Chlorine
2 Conversion Project in the amount of $67,634.00, a copy of which is attached hereto as Exhibit
3 "A".
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Section 3.
This Resolution shall become effective immediately upon passage.
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PASSED AND ADOPTED this L day of July, 2007.
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24 ATTEST:
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30 (Corporate Seal)
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S:\CAIRESOlAgreementsITask - Change OrderslArcadis - U07-1-1.doc
R07-057
TASK ORDER NO. U07-1-1 - East Water Treatment
Plant Chlorine System Conversion.
A. Background
ARCADIS is pleased to submit this proposal for engineering services in connection
with the conversion of the existing disinfection system at the City of Boynton Beach,
East Water Treatment Plant (WTP) from gaseous chlorine to liquid sodium
hypochlorite. New provisions to the Environmental Protection Agency (EPA)
regulations for facilities using gaseous chlorine have become more stringent. Risk
management planning and concerns of large-scale leaks have resulted in a push
towards the use of sodium hypochlorite at these types of facilities. Sodium
hypochlorite is safer and easier to manage then gaseous chlorine while maintaining
similar disinfection properties.
ARCADIS herein referred to as Engineer, shall perform the services as outlined below
for the City of Boynton Beach, hereinafter referred to as the City.
B. Scope of Services
The Engineer understands that the project will include demolition details for the
existing gaseous chlorine disinfection system at the facility and the design of a new
sodium hypochlorite based disinfection system to replace the existing system at the
City's East WTP. The systems to be designed include bulk storage tank facilities,
secondary containment provisions, chemical feed metering systems and piping
manifold and delivery systems.
The following specific tasks shall be performed by the Engineer:
Task 1 - Design
Prepare plans and technical specifications for the proposed sodium hypochlorite bulk
storage and chemical feed systems to be installed at the City's East WTP. In general
the design shall include the following:
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a. Conduct a kickoff meeting at the City's office to establish
project objectives and confirm design criteria. Attendees of
the kickoff meeting shall include representatives of the engineer
and appropriate staff from the City.
b. Preparation of demolition plans and detail drawings for the
decommissioning of the existing gaseous chlorine systems
including the removal of all chlorination equipment and gas
cylinder scales. Demolition plans and details for the
decommissioning of the existing air scrubber system which
currently services the gas cylinder storage building will also be
completed under this item.
c. Preparation of civil and mechanical drawings for the installation
of a sodium hypochlorite bulk storage system at the East WTP.
Preliminary discussions with the City indicate that the preferred
location of the proposed bulk storage system is within the
existing gas cylinder storage building.
d. Preparation of mechanical drawings for the installation of self-
contained chemical metering pumps systems. The metering
pump systems shall be a skid mounted system delivered to the
site with a pre-piped manifold complete with pressure relief
valves for blow-off of sodium hypochlorite off-gas. Preliminary
discussions with the City indicate that the preferred location of
the proposed chemical metering systems is within the existing
gas chlorinator room. Furthermore, it is also assumed that the
metering system will be designed for "plug-and-play" in a
standard 120 V AC receptacle.
e. Preparation of civil and mechanical drawings for the installation
of sodium hypochlorite feed piping to the designated application
points at both the "pre" and "post" chlorine dosing points shall
be included. Additional chlorine dosing points may be added as
requested by the City.
f. Preparation of a detailed construction sequence/plan for the
conversion of the existing disinfection system from gaseous
chlorine to liquid sodium hypochlorite. Plan shall outline the
proposed means and methods required to ensure uninterrupted
service/operation of the water treatment plant processes for the
duration of the conversion activities. It is anticipated that the
proposed construction sequence will entail the specification of
temporary sodium hypochlorite bulk storage and chemical feed
systems, which will allow the Contractor to demolish and
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Sheet
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construct the existing and proposed systems in a safe, timely
manner.
g. The Engineer shall coordinate with the City's designated
instrumentation and control (I&C) contractor, to facilitate the
integration of the proposed I&C systems into the existing
supervisory control and data acquisition (SCADA) system at the
site. As part of the design, the Engineer will develop a detailed
process flow diagram of the proposed disinfection system I&C
components. The process flow diagram shall also specify the
operational control sequence of all specified components. The
use of the City's I&C contractor will reduce any ambiguity and
allow the City to maintain a single point of contact with regards
to the modification of the existing SCADA system at the site.
Furthermore, it will afford the City some price protection by
allowing the City to complete this portion of the work under
previously negotiated rates.
h. Submit a set of plans and specifications to the City at the 60%
and 90% completion levels for review and comment. Upon
receipt of any comments from the City, the Engineer will meet
with the City, as necessary, to address any comments prior to
revising the plans and specifications. Engineer shall provide an
estimate of probable cost with each progressive milestone.
PRELIMINARY LIST OF DRAWINGS
Sheet Title
Cover Sheet
Existing Site Plan
Proposed Sodium Hypochlorite Disinfection Systems Flow Diagram
Existing Gaseous Chlorine Building Demolition Plan
Existing Gaseous Chlorine Storage Building Caustic Scrubber System Demolition Plan
Proposed Sodium Hypochlorite Feed Piping Plan
Proposed Sodium Hypochlorite Bulk Storage Facilities Mechanical Plan
Proposed Sodium Hypochlorite Bulk Storage Facilities Mechanical Section
Proposed Sodium Hypochlorite Chemical Metering System Room Mechanical Plan
Proposed Sodium Hypochlorite Chemical Metering System Room Mechanical Section
Proposed Sodium Hypochlorite Process and Instrumentation Diagram
Mechanical Details
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PRELIMINARY DESIGN CRITERIA
Average Daily Flow (ADF):
Assumed Peaking Factor from MaR's
Maximum Daily Flow (MDF):
Average Sodium Hypochlorite Dose:
Average Sodium Hypochlorite Usage:
Maximum Sodium Hypochlorite Usage:
Maximum Sodium Hypochlorite Usage:
Number of Chlorine Dosing Points:
Preliminary Bulk Storage Volume:
Bulk Storage Tank Material:
Preliminary Chemical Metering Pumps:
Type of Chemical Metering Pumps:
10 MGD
1.5
16 MGD
12-16 mglL
100-135 gal./MG finished water
21 mglL
175 gal./MG finished water
2 ("Pre" and "Post")
(2) - 7,500 gallon tanks
Dual-walled polyethylene
6 (Four duty/two standby)
Continuous Duty- Diaphragm
Task 2 - Permitting
The proposed modifications will require the preparation and submittal of a minor
modification to the existing Florida Department of Environmental Protection (FDEP)
operating permit at the East WTP. At the 90% completion level, ARCADIS will
prepare for City review and approval all the necessary FDEP permit application
documentation for the Palm Beach County Health Department (PBCHD). Once the
City has accepted the 90% design and permit application packages, the Engineer will
submit the permit modification to the PBCHD. The engineer will act as the Client's
liaison during the permitting process.
Once the FDEPIPBCHD permit has been received, the Engineer shall proceed with the
100% design documents including all drawings and technical specifications required
for bidding and subsequent construction.
Task 3 - Bid Phase Services
The Engineer will follow the City guidelines for the bidding phase services. This shall
include the following:
a. The Engineer shall distribute plan sets to the prospective
bidders. The cost for production of the contract documents will
be borne by the prospective bidders through purchase of the
construction documents from the Engineer. The Engineer shall
maintain records of the plan holders list and provide a copy of
the list to the City on a weekly basis.
b. The Engineer shall provide document mailing and pre-bid
services, such as maintaining plan holder's list, answering
questions from potential bidders, and providing technical
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support to the City for Contract Documents addenda;
addenda will be issued by Procurement Services for the
City.
c. The Engineer will provide response to technical questions from
prospective bidders and suppliers and provide technical
information to the City for addenda that will be issued by
Procurement Services as appropriate. Technical information for
up to three addenda is assumed in the budget for Bid Phase
Services.
d. The Engineer shall review bid packages received, prepare bid
tabulation sheet and due diligence form and recommend award.
e. The Engineer shall assist the City in conforming and preparing
the Contract Documents for execution by the City selected
Contractor.
f. The Engineer shall issue integrated conformed sets of Contract
Documents including, the Schedule of Bid Items, the Contract,
and the General Conditions for Construction, Technical
Specifications and project construction drawings. Supply two
(2) sets of Conformed Contract Documents and electronic
drawings for the City and awarded contractor.
Task 4 - Construction Phase Services
The Engineer shall provide engineering services during all phases of construction for
the conversion of the existing disinfection system from gaseous chlorine to sodium
hypochlorite. The Engineer shall provide technical assistance to the Contractor
selected by the City to ensure the proper installation of all proposed systems in
accordance with the Contract Documents. Upon completion of the construction
activities the Engineer will prepare Record Drawings accurately depicting the
construction details of the proposed systems. The Engineer shall submit these
drawings to the PBCHD, to verify/certify completion of the proposed modifications to
the existing operating permit in accordance with the previously submitted plans.
Task 5 - Building Department Permit Assistance
The Engineer shall provide assistance to the City to secure the necessary building
permits required by the City of Boynton Beach to complete the proposed remodeling
tasks within the east filter bay at the City's East WTP site.
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C. Assumptions
The above scope is predicated on the assumption that the City shall furnish, at no cost
to the Engineer, all available pertinent information including previous reports, plans,
specifications, permits and other data relevant to the performance of the above services
for the project. In addition, the City shall designate, in writing, a person to act as the
representative for services performed under this agreement. The Engineer also
assumes the following:
1. The City will be responsible for making provisions for construction.
2. The 90% preliminary plans shall be prepared to be able to secure an FDEP
permit and may not include the necessary detail needed for construction.
D. Contract Reference
This Task Order shall be performed under the terms and conditions described within
the Agreement for General Engineering Consulting Services dated November 18,2005
between the City of Boynton Beach and ARCADIS U.S., Inc.
E. Additional Services
If services are required in the performance of the above scope of services, beyond
those normally provided by the Engineer, which must be sublet, the Engineer shall
order the work after obtaining written authorization from the City. If the Engineer is
requested to subcontract any work directly than a 10% markup will be applied to the
subcontractor invoice for coordination services provided by the Engineer.
F. Obligations of the City
The following specific information and/or items shall be furnished at no cost to the
Engineer:
1. Data prepared by or services by others including, but not limited to, all
pertinent Record Drawings of the existing gaseous chlorine disinfection system
which were completed as part of any previous expansion.
2. All permit application and government inspection fees.
3. The City shall be responsible for designating an I&C contractor for the
integration of the instrumentation and control systems provided in the final
design into the SCADA system at the East WTP.
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G. FEES
Th fI fI h'
k 'll b
k fill
e ees or t IS wor WI e per tas as 0 ows:
En2ineerin2 Services Lump Sum T&M
Task 1 -Design $39,338 0
Task 2 - Permitting 0 $3,804
Task 3 - Bid Phase Services $4,148 0
Task 4 - Construction Phase Services 0 $17,512
Task 5 - Building Permit Submittal Assistance 0 $2,832
TOTALS $43,486.00 $24,148.00
H. Schedule
Th
I' d
fI h'
k 'll b
fill
(
'tt NTP)
e completIOn ates or t IS wor WI e as 0 ows startmg at wn en
En2ineerin2 Services Time per Phase Cumulative Time
Task I -Design 2 month 2 month
Task 2 - Permitting 2 months 3 months
Task 3 - Bid Phase Services & City Award 2 month Smonths
Task 4 - Construction Phase Services 4 month 9 months
Task 5 - Building Permit Submittal Assistance NA NA
APPROVED BY:
CITY OF BOYNTON BEACH
By:
Kurt Bressner, City Manager
Dated this
day of
,2007
SUBMITTED BY:
ARCADIS U.S., INC.
~ "
By: /j~c^-= L I~~
Thomas L. Tessier, P.G., Vice President
Dated this 30 day of A P; I l
By: ~~ 71 ~;;
Wi~ Lync , P~E., Vie President
Dated this S D day of + Ii /
,2007
,2007
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