21-268021-2680
ORDINANCE NO.
AN ORDINANCE OF THE CITY OF DENTON, A TEXAS HOME -RULE MUNICIPAL
CORPORATION, AUTHORIZING THE APPROVAL OF A FIRST AMENDMENT TO A
PROFESSIONAL SERVICES AGREEMENT BETWEEN THE CITY OF DENTON AND
FREESE AND NICHOLS, INC., AMENDING THE CONTRACT APPROVED BY CITY
COUNCIL ON SEPTEMBER 22, 2020, IN THE NOT -TO -EXCEED AMOUNT OF $1,472,700.00;
SAID FIRST AMENDMENT TO PROVIDE ADDITIONAL DESIGN SERVICES FOR THE RAY
ROBERTS WATER TREATMENT PLANT UPRATING AND PERFORMANCE
IMPROVEMENTS PROJECT; PROVIDING FOR THE EXPENDITURE OF FUNDS
THEREFOR; AND PROVIDING AN EFFECTIVE DATE (RFQ 6590-093 — PROVIDING FOR
AN ADDITIONAL FIRST AMENDMENT EXPENDITURE AMOUNT NOT -TO -EXCEED
$663,310.00, WITH THE TOTAL CONTRACT AMOUNT NOT -TO -EXCEED $2,136,010.00).
WHEREAS, on September 22, 2020, by Ordinance No. 20-1828, the City awarded a contract
to Freese and Nichols, Inc., in the amount of $1,472,700.00, to provide regulatory permitting, process
evaluation, design services, and Texas Water Development Board funding assistance in support of the
Lake Ray Roberts Water Treatment Plant Capacity Uprate, Regulatory and Performance Upgrades
Project; and
WHEREAS, the additional fees under the proposed First Amendment are fair and reasonable
and are consistent with, and not higher than, the recommended practices and fees applicable to the
Provider's profession, and such fees do not exceed the maximum provided by law; NOW,
THEREFORE,
THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS:
SECTION 1. The First Amendment, increasing the amount of the contract between the City
and Freese and Nichols, Inc., which is on file in the office of the Purchasing Agent, in the amount of
Six Hundred Sixty -Three Thousand Three Hundred Ten and 00/100 ($663,310.00) Dollars, is hereby
approved, and the expenditure of funds therefor is hereby authorized in accordance with said
amendment which shall be effective upon the execution of the amendment attached hereto. The total
contract amount increases to $2,136,010.00.
SECTION 2. This ordinance shall become effective immediately upon its passage and
approval.
The motion to approve this ordinance was made by and
seconded by 7EK l 0•^ �2 C k— _ _ The ordinance was passed and approved by the
following vote [-7 - 0 1:
Mayor Gerard Hudspeth:
Vicki Byrd, District 1:
Brian Beck, District 2:
Jesse Davis, District 3:
Alison Maguire, District 4:
Deb Armintor, At Large Place 5
Paul Meltzer, At Large Place 6:
Aye Nay
Abstain Absent
PASSED AND APPROVED this the ) `i th day of ��cesnb2� , 2021.
ATTEST:
ROSA RIOS, CITY SECRETARY
APPROVED AS TO LEGAL FORM:
MACK REINWAND, CITY ATTORNEY
Digitally signed by Marcella Lunn
DN: cn=Marcella Lunn, o, ou=City
LU of Denton,
BY.��� email=marcella.lunnCacitvofdent
on.com, c=US
Date: 2021.11.01 16:20:56 -05'00'
GERARD HUDSPETH, MAYOR
DocuSign Envelope ID: F7E9449F-4030-44EA-BE5D-079891 F7B6EA
CITY
OF
DENTON
Docusign City Council Transmittal Coversheet
PSA
6590-093
File Name
RRWTP CAPACITY UPRATE REGULATORY AND PERFORMANCE UPGRA
Purchasing Contact
Crystal Westbrook
City Council Target Date
DECEMBER 14, 2021
Piggy Back Option
Not Applicable
Contract Expiration
NSA
Ordinance
21-2680
)ES
DocuSign Envelope ID: F7E9449F-4030-44EA-BE5D-079B91 1`766EA
FIRST AMENDMENT TO CONTRACT
BY AND BETWEEN THE CITY OF DENTON, TEXAS
AND FREESE AND NICHOLS, INC.
PSA 6590-093
THE STATE OF TEXAS §
COUNTY OF DENTON
THIS FIRST AMENDMENT TO CONTRACT 6590-093 ("Amendment") by and
between the City of Denton, Texas ("City") and Freese and Nichols, Inc. ("Engineer"); to
that certain contract executed on September 23, 2020, in the original not -to -exceed amount
of $1,472,700 (the "Agreement"); for services related to the installation of the RRWTP
Capacity Uprate Regulatory and Performance Upgrades.
WHEREAS, the City deems it necessary to further expand the services provided by
Consultant to the City pursuant to the terms of the Agreement, and to provide an additional
not -to -exceed amount $663,310 with this Amendment for an aggregate not -to -exceed
amount of $2,136,010; and
FURTHERMORE, the City deems it necessary to further expand the goods/services
provided by Engineer to the City;
NOW THEREFORE, the City and Engineer (hereafter collectively referred to as the
"Parties"), in consideration of their mutual promises and covenants, as well as for other
good and valuable considerations, do hereby AGREE to the following Amendment, which
amends the following terms and conditions of the said Agreement, to wit:
The additional services described in Exhibit "A" of this Amendment, attached
hereto and incorporated herein for all purposes, for professional services related to
RRWTP Capacity Uprate Regulatory and Performance Upgrades, are hereby
authorized to be performed by Engineer. For and in consideration of the additional
services to be performed by Engineer, the City agrees to pay, based on the cost
estimate detail attached as Exhibit "A" to this Amendment, attached hereto and
incorporated herein for all purposes, a total fee, including reimbursement for non -
labor expenses an amount not to exceed $663,310.
2. This Amendment modifies the Agreement amount to provide an additional
$663,310 for the additional services with a revised aggregate not to exceed total of
$2,136,010.
6590-093 PSA —Amendment #1 Page 1 of 2
DocuSign Envelope ID: F7E9449F-4030-44EA-BE5D-079B91F7B6EA
The Parties hereto agree, that except as specifically provided for by this Amendment, that
all of the terms, covenants, conditions, agreements, rights, responsibilities, and obligations
of the Parties, set forth in the Agreement remain in full force and effect.
IN WITNESS WHEREOF, the City and the Consultant, have each executed this
Amendment electronically, by and through their respective duly authorized representatives
and officers on this date 12/14/2021
CITY OF DENTON, TEXAS
A Texas Municipal Corporation
SARA HENSLEY, INTERIM CITY MANAGER
DocuSigned by:
BY:
E"_Q"'7049A
AUTHORIZED SIGNOR
ATTEST:
ROSA RIOS, CITY SECRETARY
DocuSippgned by:
�C3f It04
BY: 1CSCMCK175493...
THIS AGREEMENT HAS BEEN
BOTH REVIEWED AND APPROVED
as to financial and operational
obligations and business terms.
Docuftrod by:
Stephen D. Gay
SIGNATURE PRINTED NAME
Director
TITLE
water utilities
DEPARTMENT
6590-093 PSA —Amendment #1
"Engineer"
FREESE AND NICHOLS, INC.
DocuSigned by:
By. CV .
vice President
1565A941D2364D5_..
AUTHORIZED SIGNOR, TITLE
APPROVED AS TO LEGAL FORM:
MACK REINWAND
by:
BY:FDOcuSigned
ArU VA
Page 2 of 2
DocuSign Envelope ID: F7E9449F-4030-44EA-BE513-079891 F7136EA
EXHIBIT A
SCOPE OF SERVICES AND RESPONSIBILITIES OF CLIENT
PROJECT UNDERSTANDING
ATTACHMENT SCA
The City of Denton (City) has requested that the Ray Roberts Water Treatment Plant (LRRWTP) Regulatory
and Performance Upgrade Processional Services Agreement executed on September 23, 2020, be amended
to include design services associated with the following two items:
• Modification of the backwash supply for the Ray Roberts Water Treatment Plant (WTP) Filter Complex.
• Replacement of additional electric motor operators (EMO) for valves and gates not included in the
original scope of services.
MODIFICATIONS OF BACKWASH SUPPLY
The City of Denton (City) has requested that the Ray Roberts Water Treatment Plant Regulatory and
Performance Upgrade Professional Services Agreement executed on September 23, 2020, be amended to
include design services associated with the modification of the backwash supply for the Ray Roberts WTP
Filter Complex.
The existing filters are classified as self-backwashing style filters. When one filter goes into backwash, the
filtered water exiting the other filters is used to supply the backwash. The existing 30 -inch diameter butterfly
valve on the filtered water (filter outlet) line throttles the flow into the filter cell. The City has expressed
concern regarding ability for the flow to be adjusted easily and to ensure that the filters are being adequately
cleaned during a backwash.
Based on input from the City, the proposed backwash supply improvements will generally consist of a ground
storage tank to store backwash at such an elevation as to provide the filters with a wide range of backwash
flows. The major components that will be included in the modifications include:
• Backwash supply ground storage tank,
• Connection to the transfer pump station to fill the backwash supply ground storage tank with chlorine -
free water,
• Flow control valve at the transfer pump station connection to throttle the fill of the backwash supply
ground storage tank,
• Piping from the backwash supply ground storage tank to the filter complex,
• Piping improvements within the filter gallery to accommodate the new backwash supply connection,
• Electrical and instrumentation improvements to support the modifications,
• Programmable logic controller additions and programming modifications to convert to a new
backwash approach.
The Ray Roberts WTP has eight filters, each with dimensions of 16'-0" by 29'-0" resulting in a filter surface
area of 464 square feet (sf). The following backwash protocol is common for many WTPs:
1. Close the settled water valve (filter influent, BFV-F-1x1)
2. The filter will continue treating water as the water level drains.
3. Once the water level in the filter cell is below the top of the backwash troughs, the backwash waste
valve (BFV-F-1x2) will open. Once this valve is open, the troughs will empty, and the settled
water/backwash waste channel will drain.
4. Once the water level in the filter cell is 6 inches above the media (adjustable), the filtered water (filter
effluent, BFV-F-1x3) will close.
5. The air scour valve (BFV-F-1x5) will open, and one of the air scour blowers will begin operations.
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DTN20672 Amendment No. 1
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6. The air scour process will continue for an amount of time as desired by the City operations team (user
input).
7. Upon the completion of the air scour only timer, the new backwash supply valve (BFV-F-1x6) will open
and the new rate -of -flow control valve at the new backwash supply ground storage tank will begin to
actuate to achieve the desired low backwash rate, as measured by the new master backwash flow
meter located near the new backwash supply ground storage tank. The ramp up to the low -rate
backwash will be 1 minute (adjustable).
8. The low -rate backwash rate is typically 5 gpm/sf (2,320 gpm); however, it will be field adjustable by
the City operations team.
9. The combination air scour/low-flow backwash will continue until the water level within the filter cell
is 6 inches (adjustable) from the bottom of the backwash waste troughs. At this time, the air blower
will shutoff and the air -scour isolation valve (BFV-F-1x5) will close.
10. The low -rate backwash timer will begin with an initial setpoint of 5 minutes (adjustable).
11. The backwash rate will increase from the low rate to the high rate over 1 minute (adjustable). The
high -rate backwash is typically up to 20 gpm/sf (9,280 gpm); however, it will be field adjustable by
the City operations team.
12. The high -rate backwash timer will begin, with an initial setpoint of 10 minutes (adjustable).
13. Once the high -rate backwash timer has been reached, the backwash rate will decrease from the high
rate to low rate over 1 minute (adjustable).
14. The low -rate backwash time will begin, with an initial setpoint of 5 minutes (adjustable). This step
allows the media to re -stratify after the mixing caused by the air scour and high -rate backwash steps.
15. After the final low -rate backwash, the backwash waste valve (BFV-F-1x2) will close, allowing the water
level in the filter cell to increase.
16. As the level approaches the normal operating level, the master rate -of -flow control valve will close.
17. The filter will be allowed to age, with all valves closed, for 5 minutes (adjustable).
18. After the aging process, the settled water valve (filter influent, BFV-F-1x1) will open and the filter -to -
recycle valve (BFV-F-144) will open. The filter -to -recycle process will continue for a period of 10
minutes (adjustable).
19. Upon completion of the of the filter -to -recycle time, the filter -to -recycle valve (BFV-F-1x4) will close
as the filtered water valve (filter effluent, BFV-F-1x3) opens.
Backwash Supply Storage Tank:
Based on the above filter backwash scenario, steps 7 through 15 will impact the size of the backwash supply
storage tank. This scenario requires a backwash supply volume of approximately 144,000 gallons for each
backwash. The current RRWTP backwash sequence uses approximately 250,000 gallons. If the high -rate
backwash was extended from 10 minutes to 22 minutes, the proposed backwash volume would approach
that currently used at the RRWTP. This approach will provide the RRWTP with the flexibility to extend the
backwash, if necessary. Once in operation, if the RRWTP operations team can reduce the backwash volume
used, the excess volume would allow for additional filters to be backwashed in sequence prior to refilling the
tank. Storing four backwashes at the higher volume equates to a volume of 1,000,000 gallons.
The grade near the filters is approximately 598.00±. The top of the filter backwash troughs is approximately
592.10±. This provides approximately six feet of driving head for a backwash; however, the head loss through
the piping, fittings, valves, underdrain, and media would be in excess of this available driving head. Based on
preliminary evaluations, it appears that a ground storage tank may be possible.
A ground storage tank with a diameter of 85 feet and a side water depth of approximately 24 feet will provide
a volume of 1,020,000 gallons. The proposed location for this tank will be adjacent to the transfer pump
station. A second tank could be designed and constructed in this space beyond a RRWTP capacity of 50 MGD.
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DTN20672 Amendment No. 1
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DocuSign Envelope ID: F7E9449F-4030-44EA-BE5D-079891 F7B6EA
A master rate -of -flow valve and flow meter will be provided near the backwash supply storage tank to throttle
the backwash flow to the filters.
Transfer Pump Station:
Each of the three transfer pump station pumps has a rated head of approximately 34.25 feet. The clearwell
finished floor elevation is 596.00± and the overflow elevation is 628.00±. The inlet piping of the clearwell has
a riser pipe with an elevation of 612.00±. The backwash supply storage tank geometry will be critical in
balancing the flow split from the transfer pump station to the backwash supply storage tank and clearwell.
Modifying the transfer pump station controls are not anticipated to achieve the above backwash protocol.
Filter Piping Modifications:
A pipe from the backwash supply tank will be provided to accommodate the high -rate backwash. This pipe
will have provisions to connect to future filter galleries as the LRRWTP expands. This backwash supply pipe
will split to accommodate the two existing filter galleries. It is anticipated that this pipe will have a diameter
of 24 to 30 inches. Due to space constraints within the filter pipe gallery, the backwash supply headers will
need to stay outside. Backwash supply drops for each filter will drop below grade and penetrate the existing
exterior wall of the filter pipe gallery so that the backwash supply line will be below the access platforms. The
individual filter backwash supply isolation valve will be equipped with an open/close electric motor operator
and will be located exterior to the pipe gallery. The existing 30 -inch diameter filtered water piping within the
filter pipe gallery between the existing filtered water (effluent) butterfly valve (BFV-F-1x3) and the fittings at
the filter cell wall will require modification. It should be noted that the space in this area is extremely tight.
Besides the eight penetrations through the exterior wall, additional wall penetrations may be required for
Filter No. 4 and 8 to support piping installation and connections.
REPLACEMENT OF ADDITIONAL ELECTRIC MOTOR OPERATORS
The City of Denton (City) has requested that the Ray Roberts Water Treatment Plant Regulatory and
Performance Upgrades Professional Services Agreement executed on September 23, 2020, be amended to
include design services associated with the replacement of additional electric motor operators for valves and
gates not included in the original scope.
The existing electric motor operators utilize a serial RS -485 communication protocol, which has been
problematic for the Ray Roberts Water Treatment Plant (WTP). The new operators will use individual
input/output (discrete and analog) conductors to remedy those challenges and provide more stable and
efficient communication.
The valves, sluice gates, and slide gates associated with these additional EMO replacements will not be
replaced and will remain in service.
The PLCs identified within this Amendment will accept the following input/output (1/0) points from each
motor operator being replaced:
• Discrete Input
o In Remote
o Fully Open
o Fully Closed
Discrete Output
o Open Command
o Close Command
• Analog Input (Modulating Duty Operators Only)
o Valve Position Feedback
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DTN20672 Amendment No. 1
Ray Roberts Water Treatment Plant Regulatory and Performance Upgrades
DocuSign Envelope ID: HE9449F-4030-44EA-BE51D-0791391 17766EA
• Analog Output (Modulating Duty Operators Only)
o Valve Position Setpoint
The modifications forthe PLCs listed below are limited to adding 1/0 points to support the EMO replacements;
however, no additional programming or transfer of process control and monitoring is included with these
services. The majority of the plant processes' current monitoring and control strategy are executed by the
Think -and -Do server, and the City is currently working toward replacing the Think -and -Do server with a
Modicon M580 data aggregator. The current programming associated with monitoring and controlling the
processes and valves will remain in the current system and configuration and will not be transferred to the
new PLCs identified in this Amendment. The modifications to or replacements of the PLCs identified below
are limited to gathering the necessary 1/0 associated with the electric motor operators identified in this
Amendment.
Ray Roberts Water Treatment Plant Electric Motor Operators:
The additional electric motor operators to be replaced at the Ray Roberts WTP are summarized in Table 1.
Based on input from the City, the valves and slide gates attached to the electric motor operators listed below
will remain in place. No valves or gates will be replaced as part of the operator replacement.
Table 1: Additional RR WTP Electric Motor Operators
Tag. No.
Valve Size/Type
Open/Close or
Modulating
Location
SLG -POC -1
20"x 20" Slide Gate
Open/Close
Pre -ozone Contactor No. 1
SLG -POC -2
20" x 20" Slide Gate
Open/Close
Pre -ozone Contactor No. 1
SLG -POC -5
48" x 36" Slide Gate
Open/Close
Pre -ozone Contactor No. 1
SLG -POC -3
20"x 20" Slide Gate
Open/Close
Pre -ozone Contactor No. 2
SLG -POC -4
20" x 20" Slide Gate
Open/Close
Pre -ozone Contactor No. 2
SLG -POC -6
48" x 36" Slide Gate
Open/Close
Pre -ozone Contactor No. 2
MV -FS -1
8" Mud Valve
Open/Close
Flocculation/Sedimentation
Basin No. 1
TV -FS -1
8" Telescoping Valve
Modulating
Flocculation/Sedimentation
Basin No. 1
MV -FS -2
8" Mud Valve
Open/Close
Flocculation/Sedimentation
Basin No. 2
TV -FS -2
8" Telescoping Valve
Modulating
Flocculation/Sedimentation
Basin No. 2
SLG -IOC -1
20"x 20" Slide Gate
Open/Close
Intermediate Ozone Contactor
No. 1
SLG -IOC -2
20" x 20" Slide Gate
Open/Close
Intermediate Ozone Contactor
No. 1
SLG -IOC -3
20"x 20" Slide Gate
Open/Close
Intermediate Ozone Contactor
No. 2
SLG -IOC -4
20" x 20" Slide Gate
Open/Close
Intermediate Ozone Contactor
No. 2
WG -TP -1
12' Weir Gate
Modulating
Transfer Pump Station
PV -TP -249
8" Plug Valve
Open/Close
Transfer Pump Station
BFV-WR-292
10" Butterfly Valve
Open/Close
Washwater Return to Raw
Water Pipeline Connection
BFV-BB-441
12" Butterfly Valve
Open/Close
Filter Air Scour Blower Building
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DTN20672 Amendment No. 1
Ray Roberts Water Treatment Plant Regulatory and Performance Upgrades
DocuSign Envelope ID: F7E9449F-4030-44EA-BE5D-079B91F7B6EA
Tag. No.
Valve Size/Type
Open/Close or
Modulating
Location
BFV-BB-444
12" Butterfly Valve
Open/Close
Filter Air Scour Blower Building
The switch from serial RS -485 communication to individual 1/0 (discrete and analog) conductors for each
operator results in additional conduit and conductors. In addition, several programmable logic controllers
(PLCs) will require modifications to support the additional 1/0 conductors.
This Amendment will also include the following modifications to the Ray Roberts WTP PLCs listed below:
• PLC -06:
o PLC -06 is located within the Operations/Administration Building Electrical Room. The original
Project included the addition of a small number of 1/0 points but did not require the
replacement of this PLC.
o Due to the increase in the 1/0 points, this PLC will require replacement due to the lack of
available input/output points. Space within the Operations/Administration Building Electrical
Room will not allow the installation of a second PLC. The original PLC and the associated
cabinet will be replaced with a Modicon M340 PLC. The field wiring between the PLC cabinet
and the existing field devices will remain and not be replaced. The construction sequencing
of this work may request that the Ray Roberts WTP be offline for approximately two (2)
weeks.
o The following electric motor operators will be assigned to this PLC:
■ MV -FS -1
■ TV -FS -1
■ MV -FS -2
■ TV -FS -2
■ BFV-WR-292
• PLC -10:
o As part of the original Agreement, PLC -10 was added at the Biologically Active Filters to
support the improvements designed at Filter Nos. 5 through 8.
o Additional design will be required to support this Amendment.
o The following electric motor operators will be assigned to this PLC:
■ SLG -IOC -1
■ SLG -IOC -2
■ SLG -IOC -3
■ SLG -IOC -4
• PLC -13:
o As part of the original Agreement, PLC -13 was added to the Transfer Pump Station Electrical
Building to support the improvements designed at the Water Reclamation Basin.
o Additional design will be required to support this Amendment.
o The following electric motor operators will be assigned to this PLC:
■ WG -TP -1
■ PV -TP -249
PLC -14:
o An additional PLC will be required due to the number of 1/0 points added with the electric
motor operators listed below. The current Pre -ozone Contactor operators are connected to
PLC -02 (Ozone Building) via serial RS -485. Due to the length of the duct bank, conduit, and
conductors required with this operator placement, a new Modicon M340 PLC is proposed.
o PLC -14 will be a new PLC as part of this Amendment and located at the Pre -Ozone Contactor.
o The following electric motor operators will be assigned to this PLC:
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DTN20672 Amendment No. 1
Ray Roberts Water Treatment Plant Regulatory and Performance Upgrades
DocuSign Envelope ID: F7E9449F-4030-44EA-BE5D-079B91 F766EA
■ SLG -POC -1
■ SLG -POC -2
■ SLG -POC -5
■ SLG -POC -3
■ SLG -POC -4
■ SLG -POC -6
• Filter Air Blower Control Panels
o Each filter air scour blower has an inlet control valve with an electric motor actuator
connected to its associated blower control panel via serial RS -485. The control panel was
supplied by Spencer Blower and programming modifications and potential hardware
modifications to each control panel will be needed to accommodate individual 1/0 points
from the motor operators.
o The following electric motor operators will be replaced.
■ BFV-BB-441
• BFV-BB-444
Ray Roberts Raw Water Pump Station Electric Motor Operators
Table 2 summarizes the additional electric motor operators associated with the Ray Roberts Raw Water Pump
Station. Based on input from the City, the valves attached to the electric motor operators listed below will
remain in place. No valves or gates will be replaced as part of the operator replacement.
Table 2: Additional RR WTP Raw Water Pump Station Electric Motor Operators
Tag. No.
Valve Size/Type
Open/Close or
Modulating
Location
BFV-RW-005
30" Butterfly Valve
Open/Close
Raw Water Pump Station
BFV-RW-007
30" Butterfly Valve
Open/Close
Raw Water Pump Station
BFV-RW-009
30" Butterfly Valve
Open/Close
Raw Water Pump Station
BFV-RW-010
42" Butterfly Valve
Open/Close
Raw Water Pump Station
BFV-RW-011
30" Butterfly Valve
Open/Close
Raw Water Pump Station
BFV-RW-012
36" Ball Valve
Modulating
Raw Water Pump Station
Due to the number of added 1/0 points, the following PLC modifications will be required to support these
operator replacements:
• PLC -15:
o PLC -1 at the Raw Water Pump Station does not have the space to accommodate the number
of additional 1/0 points associated with the proposed electric motor operators.
o PLC -15 will be a new PLC as part of this Amendment and will be located at the Raw Water
Pump Station.
o The following electric motor operators will be assigned to this PLC:
■ BFV-RW-005
■ BFV-RW-007
■ BFV-RW-009
■ BFV-RW-010
■ BFV-RW-011
■ BFV-RW-012
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DTN20672 Amendment No. 1
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ARTICLE I
BASIC SERVICES: The task lettering and numbering below is based on the Agreement and only tasks impacted
by this Amendment are listed. FNI shall render the following professional services in connection with the
development of the Project:
Al. DESIGN PHASE — MODIFICATION OF BACKWASH SUPPLY: FNI shall provide professional services in
this phase as follows:
1. Project Management:
a. Project management will be based on the services included in the original Professional
Services Agreement.
Kick-off Workshop:
a. Conduct one (1) additional project kick-off workshop with the OWNER at the OWNER's facility
to (1) review the scope of services, (2) verify OWNER's requirements for the amended Project,
and (3) review and update available data.
b. Deliverables:
L Workshop agenda.
ii. Workshop notes.
Meetings and Site Visits:
a. Conduct up to two (2) additional site visits by the engineering team to the Ray Roberts WTP
for coordination of detailed design aspects for completion of the Project.
b. Conduct the following additional workshops with the OWNER during the design phase. FNI
will submit relevant drawings, specifications, and detailed data for each workshop two (2)
weeks before the workshop dates to allow the OWNER adequate time for review and
comment.
L Modification of Backwash Supply Review Workshop — 75% design level QC workshop.
4. Detailed Design:
a. The detailed design scope tasks outlined in the Agreement will be applied to the design
elements described in the Project Understanding — Modification of Backwash Supply section
of this Amendment.
Opinions of Probable Construction Cost:
a. The development of opinions of probable construction cost are outlined in the Agreement
and will include the design elements described in the Project Understanding — Modification
of Backwash Supply section of this Amendment.
Geotechnical Services: FNI will provide professional services in this task as follows:
a. Field Exploration: Exploratory core borings previously drilled for the RR WTP encountered
shale at approximately 40 to 44 feet or elevation 553 to 558 feet. Therefore, the following is
planned for core borings at the ground storage tank:
L Select and mark five (5) boring locations and notify Texas 811 and the City to request
location marking of existing underground utilities prior to the field exploration.
ii. FNI will subcontract with a drilling contractor to drill five (5) borings to a depth of 50, 60,
and 75 feet. Samples will be collected intermittently using continuous or hollow stem
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augers and either split -spoon or tube sampler. Rock and rock -like materials will be
sampled using an NX core barrel and/or tested insitu using a TxDOT Cone Penetration
test, as appropriate for the material. At completion, the boreholes will be backfilled with
auger cuttings to the ground surface.
iii. FNI will provide an engineer or geologist, experienced in logging borings, to direct the
drilling, log the borings, and handle the samples. Visual classification of the subsurface
stratigraphy shall be provided according to the Unified Soil Classification System (USCS).
b. Laboratory Testing
i. Testing shall be performed on soil samples obtained from the borings to determine soil
classification and pertinent engineering properties of the subsurface materials. FNI will
select samples for laboratory testing, assign tests, and review the test results. Testing will
be performed by a geotechnical testing subcontractor.
ii. Laboratory tests will be assigned based on the specific subsurface materials encountered
during exploration. Test type and quantity may vary, but are expected to include:
(1) Classification test (liquid and plastic limits and percent pass the No. 200 sieve or
gradation);
(2) Moisture content;
(3) Dry unit weight;
(4) Shear strength testing;
(5) One-dimensional swell (restrained); and
(6) Consolidation test.
c. Engineering Analysis
L FNI will prepare a technical memorandum of the geotechnical investigation that will
include:
(1) Appendix with boring locations, boring logs, laboratory test results, and a key to the
symbols used.
(2) Discussion of subsurface conditions and soil properties indicated by the field and
laboratory work, and the implications for design.
(3) Foundation and site preparation recommends for the proposed ground storage tank.
(4) General discussion of expected construction related issues.
(5) Earthwork related recommendations for use during development of the plans and
specifications.
d. Deliverables
i. FNI will provide the City with three (3) draft copies and one (1) Adobe Portable Document
Format (PDF) copy of the geotechnical memorandum for review and comment.
ii. FNI will provide the City with three (3) final copies and one (1) Adobe Portable Document
Format (PDF) copy of the geotechnical memorandum for review and comment.
8. Topographic Survey Services: Topographic survey services will be coordinated by FNI and
provided by a surveyor as a subconsultant to FNI.
A2. DESIGN PHASE —REPLACEMENT OF ADDITIONAL ELECTRIC MOTOR OPERATORS: FNI shall provide
professional services in this phase as follows:
1. Project Management:
a. Project management will be based on the services included in the original Professional
Services Agreement.
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2. Kick-off Workshop:
a. Conduct one (1) additional project kick-off workshop with the OWNER at the OWNER's facility
to (1) review the scope of services, (2) verify OWNER's requirements for the amended Project,
and (3) review and update available data.
b. Deliverables:
L Workshop agenda.
ii. Workshop notes.
3. Meetings and Site Visits:
a. Conduct up to two (2) additional site visits by the engineering team to the Ray Roberts WTP
for coordination of detailed design aspects for completion of the Project.
b. Conduct the following additional workshops with the OWNER during the design phase. FNI
will submit relevant drawings, specifications, and detailed data for each workshop two (2)
weeks before the workshop dates to allow the OWNER adequate time for review and
comment.
i. Replacement of Additional Electric Motor Operators Review Workshop —75%design level
QC workshop.
4. Detailed Design:
a. The detailed design scope tasks outlined in the Agreement will be applied to the design
elements described in the Project Understanding — Modification of Backwash Supply section
of this Amendment.
5. Opinions of Probable Construction Cost:
a. The development of opinions of probable construction cost are outlined in the Agreement
and will include the design elements described in the Project Understanding — Modification
of Backwash Supply section of this Amendment.
B. BID OR NEGOTIATION PHASE: Bid phase services are not included in this Amendment.
C. CONSTRUCTION PHASE GENERAL REPRESENTATION: General construction phase services are not
included in this Amendment.
D. FULL-TIME RESIDENT PROJECT REPRESENTATIVE: Resident project representation during the
construction phase is not included in this Amendment.
ARTICLE II
SPECIAL SERVICES: FNI shall render the following professional services, which are not included in the Basic
Services described above, in connection with the development of the Project:
1. This Amendment does not include any Special Services.
ARTICLE III
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ADDITIONAL SERVICES: Any services performed by FNI that are not included in the Agreement or these
Amended Basic Services or Special Services described above are Additional Services.
ARTICLE IV
TIME OF COMPLETION: FNI is authorized to commence work on the Project upon execution of this
Agreement and agrees to complete the services in accordance with the following schedule:
• Design Phase — Modification Of Backwash Supply: Six (6) months from Notice to Proceed for this
Amendment.
• Design Phase — Replacement Of Additional Electric Motor Operators: Six (6) months from Notice to
Proceed for this Amendment.
If FNI's services are delayed through no fault of FNI, FNI shall be entitled to adjust contract schedule
consistent with the number of days of delay. These delays may include but are not limited to delays in Client
or regulatory reviews, delays on the flow of information to be provided to FNI, governmental approvals, etc.
These delays may result in an adjustment to compensation as outlined on the face of the Agreement and in
Attachment CO.
ARTICLE V
RESPONSIBILITIES OF CLIENT: The responsibilities of the OWNER are outlined in the Agreement.
ARTICLE VI
COMPENSATION: Compensation will be based on the following breakdown of the proposed fee and in
accordance with Attachment CO:
TASK FEE COMPENSATION TYPE
BASIC SERVICES
A.1: Design Phase — Modification Of Backwash Supply $489,399 Lump Sump
A.2: Design Phase - Replacement Of Additional Electric
$173,911 Lump Sump
Motor Operators
Total Basic Services Fee $663,310 Lump Sum
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