HomeMy WebLinkAbout2022-141 CCNA2018 WORK ORDER 42
AMENDMENT NO. 1
Centrate Tank Conversion
This Amendment No. 1 to Work Order Number 42 is entered into as of this 12 day of July ,
2022, pursuant to that certain Continuing Consulting Engineering Services Agreement for Professional
Services entered into as of the 17th day of April, 2018, as renewed and amended as of the 18th day of
May, 2021 (the "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
Exhibit A (Scope of Work), 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 Exhibit B
(Fee Schedule), 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 Exhibit C
(Time Schedule), 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 %omMiss�.,,.
By: W'�' By: L , r - *(
I:n A. ood, P.E. Peter D. O'Bryan, Chan
✓'-•(ER COON
Print Name: /g6 ail 60(01
Title: Senior Vice President BCC Approved Date: July 12, 2022
Attest: Jeffrey R. Smith, Clerk of Court and Comptroller
By: /itd 041Ad4t4)
De uty Clerk
Approved:
Jason . Br wn, Cou ministrator
Approved as to form and legal sufficiency: ��
Dy) n� T. Reingold, County Attorney
AMENDMENT NO. 1
to
Work Order Number 42
CENTRATE TANK CONVERSION
EXHIBIT A
SCOPE OF WORK
PROJECT UNDERSTANDING
Indian River County (County) Solid Waste Disposal District (SWDD) previously
authorized Kimley-Horn (Consultant) to perform engineering services related to the
modification of an existing 0.5-million-gallon ground storage tank(GST) at the County's
landfill such that it is suitable for storing leachate generated by the Class I municipal solid
waste landfill. The project is directly related to the ongoing leachate evaporation system
project(by others), which is expected to be under construction in summer 2022. The tank
is necessary to serve as a surge tank for the evaporation system during normal operations.
In the process of designing the tank modifications, several challenges were encountered.
The following amended Scope of Services details those challenges and the additional
services necessary to deliver the final design package for the tank modifications and
installation of the mixer system.
The Consultant will provide the following amended Scope of Services, as detailed below.
SCOPE OF SERVICES
Task 1: Mixing Evaluation (Lump Sum)
Once the Consultant had completed the mixer modeling and selected a jet pump mixer,
quotes were obtained for use by the County in procuring the equipment. The original
pricing from the vendors far exceeded the County's intended budget. Additional
modifications were made to revise materials and configuration to reduce costs. In addition,
several vendors were contacted to provide quotes,and all indicated that supply chain issues
would result in excessive delivery times. The Consultant worked closely with multiple
other vendors and contractors to identify a solution that would work in this application and
meet the required schedule of the project.
Amendment No. 1 provides for the additional coordination time on the mixer procurement
Task 2: Tank Modifications (Lump Sum)
The GST was originally designed to serve the biosolids dewatering facility and store a
combination of centrate from that process and leachate from the landfill. The tank has not
been used in several years. The proposed tank modifications include minor crack repairs,
recoating of the interior with a coating suitable for leachate storage and the installation of
Page 1 of 6
mixer to prevent stagnation and solids settling. During the process of designing the
modifications,the Florida Department of Environmental Protection made a determination
that the original tank design would not meet the requirements for secondary containment
for leachate storage.
Chapter 62-701.400 of the Florida Administrative Code requires above ground storage
tanks to include secondary containment in one of several approved forms. The existing
GST does not meet those requirements, and therefore requires an Alternate Procedure
Approval from FDEP. The Alternate Procedure process is detailed below under Task 4:
Permitting;however,the additional services related to the evaluation of the options to meet
the rule are as follows:
1. Contacted various tank vendors to determine feasibility of and budget level cost
estimates for the construction of a tank within a tank or new,secondary containment
wall outside of existing GST.
2. Contacted vendor regarding the pricing for a new, double-walled metal tank.
3. Contacted various vendors regarding the options for installation of a liner within
the existing GST (determined not to be compatible with the pre-stressed concrete
tank or the mixer system that had been selected).
4. Coordination with existing tank manufacturer for structural options and
construction methods that may partially meet the FDEP Rule.
Amendment No. 1 provides for additional services related to evaluating the secondary
containment options for continued use of the GST.
Task 3: Piping Modifications (Lump Sum)
The piping system into the tank was originally anticipated to be designed to deliver both
the typical leachate and concentrated leachate to the tank in a single pipeline.As the design
progressed, SWDD staff requested several iterations of the design to allow for various
operating scenarios.
An additional modification/redesign was required when SWDD requested that the
alignment of the piping be revised to avoid the ongoing FPL project to underground the
overhead electric lines in the center of the site.
Amendment No. 1 provides for three additional pipeline design iterations and additional
valve and flow meter details related to splitting of the flows for operational flexibility.
Task 4: Permitting(Lump Sum)
As noted above, FDEP determined that the use of the GST for leachate storage would
require a variance, modifications to the design to provide for secondary containment, or a
request for approval of an Alternate Procedure. The Consultant evaluated these options,
as follows:
1. Variance—SWDD determined that a Rule variance was not the preferred long-
term option, as the intent of the Rule is to protect the environment from the
Page 2 of 6
spilling of leachate into areas that may impact surface or groundwaters. Rather,
SWDD determined that the Alternate Procedure with additional monitoring and
spill prevention provisions would better serve the intent.
2. The Consultant evaluated the required footprint of secondary containment to meet
the rule (110% of the storage capacity of the tank, or 550,000 gallons). The
proximity of the existing GST to the lift station,pump manifold and electrical
panels, coupled with the configuration of the proposed evaporation system and
existing utilities made it prohibitive to construct the required containment.
Furthermore,the Consultant reviewed original geotechnical reports and GST
design documents to determine if the required vertical containment(liner or
compaction below the tank)was suitable for meeting the intent of the Rule.
Ultimately,the available information was not sufficient to make this
determination.
3. An Alternate Procedure allows the applicant to request approval of an alternate
method of meeting the intent of a given Rule. In this case, the Consultant prepared
a request that identified additional monitoring,testing and tank modifications that
could serve to prevent or quickly mitigate a spill or leak in lieu of constructing a
physical containment structure. The Consultant will participate in several phone
calls with FDEP staff,prepare supporting documents, coordinate with project
teams(regarding minimum storage requirements) and SCADA consultants
(regarding instrumentation and controls available to monitor for leaks)to prepare
the package to be submitted to FDEP. Several follow-up meetings and a
resubmittal of additional information will also be conducted.
The original Scope of Services did not anticipate a requirement for modification of the
FDEP Solid Waste Operations permit; however,the requirement for the Alternate
Procedure triggered the requirement. The Consultant will prepare the request for an
Alternate Procedure from FDEP including supporting documentation and will assist
SWDD's permitting consultant to incorporate this change into the ongoing Operations
Permit Modification(by others).
Amendment No. 1 provides for these additional services associated with evaluating the
secondary containment options and pursuing the Alternate Procedure request.
Task 5: Construction Phase Services (Not-to-Exceed)
No changes.
Page 3 of 6
EXHIBIT B
AMENDED FEE SCHEDULE
The Consultant will provide these services in accordance with our Continuing Consulting
Engineering Services Agreement for Professional Services dated May 18, 2021, by and
between INDIAN RIVER COUNTY, a political subdivision of the State of Florida
("COUNTY") and Kimley-Horn and Associates, Inc., ("Consultant").
Kimley-Horn will perform Tasks 1 through 4 for the amended total lump sum fee below.
Individual task amounts are informational purposes only. All permitting, application, and
similar project fees will be paid directly by the County. Task 5 will be completed on a
labor fee plus expense basis with the maximum amended labor fee shown below.
Task Task Original Amendment Revised
No. Task Fee Fee Total Fee
Task 1 Mixing Evaluation $ 14,522 $ 9,937 $ 24,459
Task 2 Tank Modifications $ 7,293 $ 6,019 $ 13,312
Task 3 Piping Modifications $ 6,668 $ 12,873 $ 19,541
Task 4 Permitting $ 1,491 $ 20,618 $ 22,109
Lump Sum Subtotal $ 29,974 $ 49,447 $79,421
Task 5 Construction Phase Services $ 20,969 $ 0 $ 20,969
Not-to-Exceed Subtotal $ 20,969 $ 0 $ 20,969
TOTAL FEE $ 50,943 $ 49,447 $ 100,389
Lump sum fees will be invoiced monthly based upon the overall percentage of services
performed. Labor fee will be billed monthly on an hourly basis according to our then-
current rates. Payment will be due per the contract terms.
ADDITIONAL SERVICES
The following services are not included in the Scope of Services for this project but may
be required depending on circumstances that may arise during the execution of this
project. Additional services may include,but not be limited to the following:
• Preparation of bid documents for competitive bid
• Design or execution of structural repairs to the GST
• Horizontal directional drill details
Page 4 of 6
AMENDED ESTIMATE FOR ENGINEERING SERVICES
PROJECT:Centrate GST Conversion
CLIENT:Indian River County
ESTIMATOR:JTG _
DESCRIPTION: DIRECT LABOR(MAN-HOURS) AMENDMENT 1 ORIGINAL
_ - Dir
SEN REG SEN Labor Dir Exp LINE Labor Exp LINE
Centrate GST Conversion PRINC PROF PROF DES/P2 CLK Total (5%) TOTAL Total (5%) TOTAL
NO. TASK
1 Mixing Evaluation(Lump Sum)
Water Quality Assessment 0 0 0 0 0 $ - $ - $ - $ 1,900 $ 94 $ 1,994
Mixing Evaluation 0 0 0 0 0 $ - $ - $ - $ 6,026 $ 301 $ 6,327
Mixer Recommendation 16 4 24 0 4 $8,044 402.20 $8,446.20 $ 1,966 $ 98 $ 2,064
Cost Estimate 2 2 4 0 0 $1,420 $ 71.00 $ 1,491.00 $ 950 $ 950
Summary Memorandum 0 0 0 0 0 $ - $ - $ - $ 2,016 $ 2,016
Review Meeting 0 0 0 0 0 $ - $ - $ - $ 1,170 $ 1,170
2 Tank Modifications(Lump Sum)
Details 4 8 4 2 2 $3,642 $182.10 $ 3,824.10 $3,626 $ 181 $ 3,807
Site visits(1)and Clarifications(4) 4 4 2 $2,090 $104.50 $ 2,194.50 $ 3,320 $ 166 $ 3,486
3 Piping Modifications(Lump Sum) $ -
Design details-Leachate FM and
Reclaimed FM 12 16 40 8 0 $12,260 $613.00 $12,873.00 $ 4,930 $247 $ 5,177
Coordination with On-Call Contractor 0 0 0 0 0 $ - $ - $ - $ 1,420 $ 71 $ 1,491
4 Permitting(Lump Sum)
Permit Application 48 12 8 8 4 $16,204 $810.20 $17,014.20 $ 720 $ 36 $ 756
RAI(1) 8 4 2 2 2 $ 3,432 $171.60 $ 3,603.60 $ 700 $ 35 $ 735
5 Construction Services(NTE)
Structural Inspection $ - $ - $ - $ 2,270 $ 114 $ 2,384
Site Visits(Well Construction Only) $ - $ - $ - $13,040 $ 652 $ 13,692
Walk Throughs and Punch List $ - $ - $ - $ 2,820 $ 141 $ 2,961
Pay Applications $ - $ - $ - $ 1,840 $ 92 $ 1,932
TOTAL HOURS 94 50 84 20 12 _ $47,092 $ 2,355 $ 49,447 $48,714 $2,229 $ 50,943
LABOR($/HOUR) $ 235 $ 225 $ 125 $ 105 $ 96 _ - - - - - -
SUBTOTAL $22,090 $11,250 $ 10,500 $ 2,100 $1,152 $100,389
Page 5 of 6
EXHIBIT C
AMENDED TIME SCHEDULE
Task 1 Deliverables: No Change
Task 2 Deliverables: Additional 4 Weeks
Task 3 Deliverables: Additional 4 Weeks
Task 4 Deliverables: Dependent on FDEP Review Times
Task 5 Duration: Additional 6 Weeks
Page 6 of 6