Amendment - Jacobs Engineering

City of Chandler — Regular Meeting (2024-06-13)

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Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades – Programming - Amendment No. 1 
Page 1 
Project No.: WA2103.452 
Rev. 3/12/2024 
 
 
 
AMENDMENT NO. 1 TO  
CONSULTANT SERVICES AGREEMENT 
 
PECOS SURFACE WATER TREATMENT PLANT SCADA UPGRADES - PROGRAMMING 
Project No. WA2103.452 
 
Council Date: June 13, 2024              
 
 
THIS AMENDMENT NO. 1 (“Amendment No. 1”) to the professional services agreement dated 
August 22, 3023, (the “Agreement”) is made by and between the City of Chandler, an Arizona 
municipal corporation, (“City”) and Jacobs Engineering Group Inc., a Delaware corporation, 
(“Consultant”), on this ______ day of ___________________, 2024, (“Effective Date” by Clerk).  (City and 
Consultant may individually be referred to as “Party” and collectively referred to as “Parties”). 
 
RECITALS 
 
A. 
The Parties entered into the Agreement for: Consultant Services (“Services”) for the 
Pecos Surface Water Treatment Plant SCADA Upgrades - Programming project. 
 
B. 
The Parties have determined that it is necessary and desirable for the Consultant to 
perform services for the City under the terms and conditions set forth in this Amendment No. 1 
and the Agreement. 
 
AGREEMENT 
 
NOW, THEREFORE, in consideration of the premises and mutual promises contained in the 
Agreement and this Amendment No. 1, the Parties agree to amend and modify the Agreement 
as follows. 
 
SECTION I – CONSULTANT’S SERVICES 
 
The Consultant’s Services are modified as described in the Exhibit "A" attached to and made 
part of this amendment by reference.  
 
 
 
August 22, 2023,

Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades – Programming - Amendment No. 1 
Page 2 
Project No.: WA2103.452 
Rev. 3/12/2024 
 
SECTION II – PERIOD OF SERVICE 
 
The Period of Service is increased by 685 calendar days for a revised total of 1,050 calendar days. 
 
SECTION III – PAYMENT OF COMPENSATION AND FEES 
 
The Fees are increased by $1,398,805 and will be payable in accordance with Exhibit "B" attached 
to and made part of this amendment by reference, for a revised total not to exceed $4,118,905. 
 
SECTION IV – NOTICES 
 
Parties to whom notice is to be given as set forth in the Agreement are revised as follows:  
 
To City: 
City of Chandler - Public Works & Utilities Department 
Attn:  CIP City Engineer: Daniel Haskins, P.E. 
P.O. Box 4008, Mail Stop 407 
Chandler, AZ 85244-4008 
Phone:  480-782-3335         Email:  daniel.haskins@chandleraz.gov 
With a copy to: 
City of Chandler - Public Works & Utilities Department 
Attn: Russ Slotnick, Project Manager 
P.O. Box 4008, Mail Stop 407, Chandler, AZ 85244-4008 
Phone: 480-782-3411          Email: russ.slotnick@chandleraz.gov 
To Consultant: 
LEGAL COMPANY NAME: Jacobs Engineering Group Inc. 
Mailing Address:  
1501 W. Fountainhead Pkwy., Ste. 401, Tempe, AZ 85282 
Physical Address:   1501 W. Fountainhead Pkwy., Ste. 401, Tempe, AZ 85282 
Statutory Agent Name: CT Corporation System 
Statutory Agent Mailing Address: 
3800 N. Central Ave., Ste. 460 
Phoenix, AZ 85012 
Statutory Agent Physical Address: 
3800 N. Central Ave., Ste. 460 
Phoenix, AZ 85012 
CONSULTANT’S AUTHORIZED PROJECT REPRESENTATIVE  
Name: 
Fair Yeager, P.E. 
Title: 
AZ Water Market Client Account Manager 
Phone:  Office: 480-377-6249; Mobile: 480-225-4102 
Email: 
fair.yeager@jacobs.com 
The Period of Service is increased by 726 calendar days for a revised total of 1,091 calendar days.

Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades – Programming - Amendment No. 1 
Page 3 
Project No.: WA2103.452 
Rev. 3/12/2024 
 
CONSULTANT’S PROJECT MANAGER 
 
Name: 
Teresa Smith-DeHesus, P.E., DBIA 
 
Title: 
Project Manager 
 
Phone:  Office: 480-377-6233; Mobile: 480-331-0005 
 
Email: 
teresa.smithdehesus@jacobs.com 
 
 
SECTION V – CONFLICT AMONG DOCUMENTS 
 
The Agreement, this amendment, and any previous amendments constitute the complete 
agreement between the Parties concerning the subject matter of the Agreement and replace 
any prior oral or written communications between the Parties.  If a conflict or ambiguity arises 
between the Agreement and this amendment, the instrument in the following order prevails 
and controls: (1) this amendment; (2) any previous Amendments from most recent to oldest; 
and (3) the Agreement. 
 
 
 
 
 
SIGNATURE PAGE TO FOLLOW

Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades – Programming - Amendment No. 1 
Page 4 
Project No.: WA2103.452
Rev. 3/12/2024 
IN WITNESS WHEREOF, the Parties hereto have caused this Amendment No. 1 to be duly 
executed.  Each Party warrants and represents that its respective signatories whose signatures 
appear below have been and are on the date of signature duly authorized to execute this 
Amendment No. 1. 
“CITY” CITY OF CHANDLER 
MAYOR 
RECOMMENDED BY: 
Daniel Haskins, P.E. 
CIP City Engineer   
APPROVED AS TO FORM: 
City Attorney 
ATTEST: 
City Clerk 
 Seal 
“CONSULTANT” 
JACOBS ENGINEERING GROUP INC. 
Signature  
    Date 
Print Name 
Title 
Signer Email Address 
15 May 2024
Fair Yeager
Client Account Manager
fair.yeager@jacobs.com

Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades – Programming - Amendment No. 1 
Page 5 
Project No.: WA2103.452 
Rev. 3/12/2024 
 
Amendment No. 1 (cont.) 
Project No. WA2103.452 
 
 
These changes result in the following adjustments of Agreement amount and/or time: 
 
Amendment authorized by Owner name: Danny Sargent  
 
Date: 4/11/24 
Consultant email:  fair.yeager@jacobs.com 
Original Agreement amount: 
$2,720,100 
Previous Amendment(s) total: 
n/a 
Last Agreement amount approved by Council: 
$2,720,100 
This Amendment: 
$1,398,805 
This Amendment + previous Amendment(s) not approved by 
Council total: 
$1,398,805 
Revised Agreement total: 
$4,118,905 
Council Approval Required (yes indicates approval required) 
Yes 
No 
Amendment(s) total over $100,000: 
☒ 
☐ 
Amendment(s) total causes Agreement to exceed $100,000:  
☐ 
☒ 
Agreement Time 
Agreement time prior to this Amendment (including previous 
amendments): 
365 
Calendar Days 
Net change resulting from this Amendment: 
685 
Calendar Days 
Revised Agreement time (including this Amendment): 
1,050 
Calendar Days 
Council Approval (if applicable) 
Council Approval Date: June 13, 2024 
Item No. Pending 
 
cc:  Project Manager, Consultant, Owner, File 
 
 
 
726
1,091

Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades - Programming - Amendment No. 1 
Page A-1 
Project No.: WA2103.452 
Rev 3/12/2024 
 
EXHIBIT A 
SCOPE OF WORK

1 
Chandler Pecos SCADA Jacobs Programming Services Amendment 1 - Scope (Exhibit A) 2024-05-03 
EXHIBIT “A” 
CITY OF CHANDLER  
PROFESSIONAL SERVICES AGREEMENT 
PECOS SURFACE WATER TREATMENT PLANT SCADA UPGRADES 
Project No. WA2103.452 
AMENDMENT 1 - Programming Services 
SCOPE OF WORK 
May 3, 2024 
 
PROJECT UNDERSTANDING AND BACKGROUND 
 
The City of Chandler Pecos Surface Water Treatment Plant (PSWTP), located at 1475 East Pecos 
Road, was put into service in 1989 and  PSWTP produces drinking water for the City’s residental and 
commercial customers.  Additionally, the control of the City’s potable water distribution network is 
also housed at PSWTP. In order to protect the health and safety of the water customers, City staff 
relies heavily on automation to reliably communicate with water facilities. This automation is in the 
form of the Supervisory Control and Data Acquisition (SCADA) system. SCADA controls and monitors 
PSWTP equipment and 55 remote potable production facilities. The SCADA system also includes 
remote monitoring capabilities for 21 remote wastewater sites. Beyond system control, SCADA also 
captures numerous data points for system analysis and regulatory reporting. The City’s 2019 SCADA 
Master Plan identified a project to replace the existing Foxboro system. 
 
The PSWTP SCADA Upgrade project will modernize and improve the City’s existing system and will 
include upgrades to legacy hardware and software. The project will replace the existing Foxboro I/A 
Distributed Control System (DCS) with Modicon PLCs and Wonderware HMI. This effort will entail 
hardware replacement, upgrades to operational technology (OT) (i.e. the systems that control and 
monitor treatment plant functions), integration with remote facilities, and possible replacement of 
other obsolete equipment, such as power supplies or radio components. The project will include 
procurement and installation of new virtual machine servers, software packages, Win911 
applications with cellular modem and domain servers, and creation of SCADA software screens. No 
treatment process upgrades are contemplated. The project will use a Construction Manager at Risk 
(CMAR) delivery approach and is expected to be completed on a fixed budget and schedule.  
 
This document describes the scope of work for services to be provided by Jacobs Engineering Group 
Inc. (CONSULTANT) for the City of Chandler (City and OWNER) for the Pecos SWTP SCADA Upgrade 
Construction Management Project WA2103.451 for execution of the work covered in Amendment 1 
for Programming. Tasks include:  
• 
Commissioning of the SCADA System (Programming remaining focused on the field 
testing and programming/software cut-over after all hardware upgrades are installed by 
the CMAR) 
• 
SCADA Training for City Operations Staff (To ensure the plant operators are trained on 
the new SCADA system prior to cutover)  
• 
Plant Electronic O&M Manual (Replacement of defunct overall plant operations manual 
using new cloud-based software)

2 
Chandler Pecos SCADA Jacobs Programming Services Amendment 1 - Scope (Exhibit A) 2024-05-03 
PROJECT TASKS 
 
1. 
PROGRAMMING AND COMMISSIONING 
Programming tasks being done under a separate project were removed. Remaining 
programming tasks herein are for work during construction for field testing and 
commissioning which will be completed after hardware upgrades are installed by the CMAR. 
In addition, commissioning tasks are included for coordination with information provided by 
the CMAR on any field changes and performing the software cut-over for the system.  
A. Task 4.1.1 – Configuration Management 
i. Cutover Meetings bi-weekly for 78 weeks 
B. Cutover and Startup Plan 
C. Task 4.1.7 HMI and PLC Commissioning 
Commissioning of the newly installed and modified control cabinets and motor 
starters, networking equipment, and HMI servers will be performed by the 
Consultant. 
i. Combined effort between CMAR and CONSULTANT to confirm that Process 
Control System, including applications software, is ready for operation. 
a. Prerequisite: Completion of hardware testing by CMAR. 
b. Joint test with CONSULTANT. Repeat of CONSULTANT’s Factory Aceptance 
Test (FAT), except using real field sensors and equipment. Plant 
interlocking and communications with PLCs and HMI shall be tested on 
loop-by-loop basis. 
c. Test procedures provided by CONSULTANT based on Loop specifications. 
ii. Performance Acceptance Tests (PAT): 
a. Once a facility area has been started up, perform a witnessed PAT on 
complete Process Control System and software to demonstrate that it is 
operating as required by the Contract Documents and software loop 
descriptions. Demonstrate each required function on a paragraph-by-
paragraph, loop-by-loop basis. 
b. Loop-specific and non-loop-specific tests same as required for FAT except 
that entire installed SCADA system will be tested using actual process 
variables and all functions demonstrated. 
c. Perform local and manual tests for each loop before proceeding to remote 
and automatic modes. 
d. Where possible, verify test results using visual confirmation of process 
equipment and actual process variable. Unless otherwise directed, 
exercise and observe devices supplied by others, as needed to verify 
correct signals to and from such devices and to confirm overall system 
functionality. Test verification by means of disconnecting wires or 
measuring signal levels is acceptable only where direct operation of plant 
equipment is not possible. 
e. Make updated versions of documentation required for PAT available to 
Owner at Site, both before and during tests.

3 
Chandler Pecos SCADA Jacobs Programming Services Amendment 1 - Scope (Exhibit A) 2024-05-03 
2. 
SCADA TRAINING FOR CITY OPERATIONS STAFF 
This work is focused on bringing the City plant operations staff up to speed on the new 
SCADA system. This work is traditionally included as part of construction costs, but is 
included in CM services as it is being performed by Jacobs as the SCADA designer and system 
integrator.  
A. Task 4.2.1 Training Workshops 
i. The CONSULTANT will prepare and lead 1 workshop to train the City staff on 
the new system.  
ii. Training will be recorded and materials provided to the City for their use.  
 
3. 
PLANT ELECTRONIC O&M (EOM) MANUAL 
Maintaining an overall Plant O&M manual is a regulatory requirement of MCESD. Pecos 
SWTP had an electronic plant O&M manual developed during the 2006 60-mgd expansion 
project and this manual is now defunct as the software it was provided in is obsolete.  A new 
and plant EOM will be provided with updated content using new software.  
A. Task 4.3.1 Plant EOM Manual Development 
i. The CONSULTANT will prepare an electronic O&M manual for the PSWTP using 
a modern cloud-based web development software. The EOM Manual 
development will be utilize the historic files from the previous outdated plant 
EOM as much as practical, and updated content incorporating the new P&IDs, 
SCADA HMI, SOPs, etc.  
B. Task 4.3.2 Plant EOM Training 
i. The CONSULTANT will prepare materials and host  training sessions for the 
general plant O&M staff on the use and maintenance of the EOM. One on one 
training for select O&M staff will be provided for the responsible for editing 
future content.    
 
4. 
PROJECT MANAGEMENT  
A. Task 4.4.1 Monthly Progress Reports, Schedule Updates, and Invoices 
i. The CONSULTANT’s Project Manager will prepare monthly progress reports 
each calendar month. The report will contain progress against schedule and 
scope, as well as relevant budget information. The Project Manager will 
oversee the preparation and submission of monthly invoices. 
ii. Consultant assumes a maximum of 24 progress reports and invoices  
B. Task 4.4.2 Management Coordination Calls 
i. The CONSULTANT’s Project Manager will conduct weekly progress calls of up 
to 1 hour in length with the OWNER’s staff to discuss any delivery issues that 
might impact the scope, schedule, or budget of this Project. Notes will be taken 
during the meeting and posted for the team. 
ii. Consultant assumes 104 weekly meetings will be held. 
 
5. 
ALLOWANCES 
A. Allowances 
i. The allowances below are estimates for optional work to be done at the 
direction and approval of the City.  The following allowances are included:

4 
Chandler Pecos SCADA Jacobs Programming Services Amendment 1 - Scope (Exhibit A) 2024-05-03 
1. Re-tagging Allowance -  for incorporating the new utility-wide tagging 
syntax into the work, including updating control narratives, HMI and 
PLC programming.Updates to drawings will be covered in the As-built 
task for the CM contract. 
2. Owner’s Contingency Allowance – for additional services as directed by 
the Owner. 
ii. Work done under the allowances will be on a time and material basis. 
Additional scope definition may be necessary to confirm the level of effort and 
fee for additional work under these allowances. 
iii. Work done under the allowances may require an adjustment to the delivery 
schedule. 
 
SCHEDULE 
Work will be performed in alignment with the construction schedule developed by the CMAR. The 
target CMAR NTP is July 1, 2024 and construction is anticipated to take 18 months. It is anticipated 
that an additional 6 months after construction completion will be needed to complete the 
professional services included herein, for a total duration of 24 months.   
 
COMPENSATION 
The work will be done on a time and material basis with a not to exceed (NTE) upper limit as 
indicated in the attached Level of Effort and Fee spreadsheet. Allowances are provided for optional 
work to be done at the direction and approval of the City.   
 
ASSUMPTION, CLARIFICATIONS, AND EXCLUSIONS 
1. 
Scope of Services represents Jacobs professional services for programming and 
commissioning for the Chandler Pecos SCADA Upgrade based on the completed design from 
Project WA2103.201. 
2. 
All Allowances will only be utilized with prior written approval from the City representative. 
3. 
Direct Reimbursable Expenses are included for normal reimbursable expenses on the 
project. Items must be billed at cost and backup must be provided with pay applications. 
4. 
Budgets will be managed at the Phase and Main Task level. Jacobs will track task budget 
overruns and underruns and reconcile funds for tasks as needed within the overall project 
NTE budget. Any scope changes will be accommodated within the overall project budget to 
the extent possible; Jacobs will inform the City on any changes that may require additional 
funds via use of an allowance or a change order. 
5. 
To facilitate rapid distribution of information, deliverables will be furnished electronically 
wherever possible. Unless otherwise indicated, final deliverables will be provided as native 
electronic files (Microsoft Word®, Microsoft Excel ®, Microsoft Access ®, and AutoCAD ® as 
appropriate). Reproduction of any additional required copies shall be performed by the 
OWNER. 
6. 
The CONSULTANT will use a project site as a repository for all electronic deliverables to be 
shared with the OWNER and CMAR team via file transfer protocol (FTP), SharePoint, or 
Microsoft® Teams.  
7. 
The Project Manager, Design Manager, subject matter experts (SMEs) and discipline staff will 
attend meetings as appropriate for the specific topic or type of meeting per the LOE.

5 
Chandler Pecos SCADA Jacobs Programming Services Amendment 1 - Scope (Exhibit A) 2024-05-03 
8. 
Travel for commissioning activities is estimated in the Direct Reimbursable Expenses 
estimate provided with the LOE attached. 
9. 
The OWNER will conduct the scheduling and coordination of necessary participants of City 
staff as well as contractor and operations staff necessary to have efficient meetings and 
coordination. The OWNER's Project Manager and Plant Manager will coordinate with City’s 
staff to ensure optimal participation at meetings and in site activities. 
10. 
The OWNER will provide access to facilities and will assist the CONSULTANT with any 
necessary entry permits, scheduling, notification, and other requirements to gain access to 
perform the work.  
11. 
Programming and commissioning assumptions: 
a. PLC and HMI programming will be developed with Schneider Electric 
EcoStruxure control expert software utilizing the GPL (General Purpose 
Library)  
b. Total I/O = 3761 based on the final design documents prepared by Jacobs: 
1. Remote Facilities I/O = 563 
a. Santan Vist I/O = 396 
b. Water and Waterwater Remotes = 167 (representing 5 example 
sites as selected by the OWNER) 
2. Pecos WTP I/O = 3198 
c. Effort for programming and commissioning is based on the detailed build up 
for each panel as provided in the attached spreadsheet Pecos SCADA 
Upgrades Configuring and Programming Fee Backup (Task 4.6).xls. 
d. HMI and PLC programming hours were calculated at 0.75 hours  per IO point  
e. HMI and PLC programming hours for VFDs were calculated at 4.0 hours per 
VFD 
f. HMI programming hours for TeSysT were calculated at 0.5 hours per TeSysT  
g. PLC programming hours for TeSysT were calculated at 1.0 hours per TeSysT 
h. Hours for configuration of field devices were calculated at 2 hours per field 
device.

Project Name: Pecos Surface Water Treatment Plant SCADA Upgrades - Programming - Amendment No. 1 
Page B-1 
Project No.: WA2103.452 
Rev. 3/12/2024 
EXHIBIT B 
FEE SCHEDULE

EXHIBIT B
Chandler Pecos SCADA Upgrades
Professional Services - Amendment 1 for Programming Services
Phase 4: Implementation and Commissioning
LEVEL OF EFFORT
Task Description
Teresa Smith-
Dehesus
Jay Hardison
Hong Zhang
Nick Edgett
Various
Getnet Ali
Josh Blume
 Navneet Jat
Naitik Shah
Ryan/Talitha
Joseph Chang 
(Various)
Total
Subtotal
Expenses
TOTAL
Principal/ 
Project 
Manager
SCADA 
Design 
Manager
Technical 
Advisor 
(Modicon) 
Technical 
Advisor 
(Wonderware) 
HMI 
Programmers
PLC 
Programmers
Cybersecurity / 
Operational 
Technology
CM
SCADA/ I&C 
Designer 
Staff I&C 
Engineer
Process / Digitial 
Solutions Engineer
Labor 
Hours
Labor
Bill Rate
280.00
$         
270.00
$         
205.00
$             
205.00
$              
205.00
$            
205.00
$            
250.00
$              
125.00
$       
150.00
$         
125.00
$         
175.00
$                   
4.1
Programing and Comissioning
4.1.1
Configuration Management (78 weeks and 50 cutover plans)
95
95
201
351
201
251
1194
$237,990
$237,990
4.1.2
Not Used
0
$0
$0
4.1.3
Not Used
0
$0
$0
4.1.4
Not Used
0
$0
$0
4.1.5
Not Used
0
$0
$0
4.1.6
Not Used
0
$0
$0
4.1.7
Commissioning (1896 hours calculated in backup spreadsheet)
171
268
136
250
315
192
200
364
1896
$368,315
$72,000
$440,315
Subtotal
95
266
469
487
250
516
192
0
200
615
0
3090
$606,305
$72,000
$678,305
4.2
SCADA Training for City Operations Staff
4.2.1
Training Workshop
4
6
10
10
4
34
$7,840
$10,000
$17,840
Subtotal
4
6
10
10
0
0
4
0
0
0
0
34
$7,840
$10,000
$17,840
4.3
Plant Electronic O&M (EOM) Manual
4.3.1
EOM Development
40
40
160
200
200
200
460
1300
$215,300
$6,000
$221,300
4.3.2
EOM Training
8
8
8
40
80
144
$25,040
$25,040
Subtotal
48
48
168
0
0
0
0
240
200
200
540
1444
$240,340
$6,000
$246,340
4.4
Project Management
4.4.1
Monthly Progress Reports, Schedule Updates, and Invoices (24mo)
96
96
96
288
$64,800
$64,800
4.4.2
Management Coordination Calls
104
104
104
104
416
$91,520
$91,520
Subtotal
200
200
0
104
0
0
0
200
0
0
0
704
$156,320
$0
$156,320
4.5
OWNERS ALLOWANCES
4.5.1
Re-tagging Allowance 
0
$0
$250,000
4.5.2
Owner’s Contingency Allowance
0
$0
$50,000
Subtotal
0
0
0
0
0
0
0
0
0
0
0
0
$0
$300,000
TOTAL
347
520
647
601
250
516
196
440
400
815
540
5,272 
$1,010,805
$88,000
$1,398,805
No.
Chandler Pecos SCADA Jacobs Programming Services Amendment 1 - LOE 2024-05-03
1