GM-19-04-30-081 i
:e7ZBRL6HYCREEK
REGIONAL UTILITY AUTHOR"
A ►arae-arahl' •t Cadet rarM. Leander. ui Aauai RaaY
SUPPLEMENTAL CONTRACT NO.5
TO CONTRACT FOR ENGINEERING SERVICES
FIRM: WALKER PARTNERS 1"Engineer")
ADDRESS: 804 Las Cimas Parkway.Suite 150Austin TX 78746
PROJECT: Phasc IC Water Treatment Plant Tax ansion and Phase 2 Land Rights
and Stakeholder Coordination f
This Supplemental Contract No. 5 to Contract for Engineering Services is made by and between
the BRUSHY CREEK REGIONAL UTILITY AUTHORITY, INC., hereinafter called
"BCRUA" and Walker Partners,hereinafter called the"Engineer".
WHEREAS, BCRUA and Engineer executed a Contract for Engineering Services, hereinafter
called the"Contract", on the 19th day of April,2017 for the BCRUA Phase IC Water Treatment
Plant Expansion in the lump sum amount of $1,763,900.00 and Phase 2 Land Rights and
Stakeholder Coordination Project in the maximum amount of$2,012,600.00 for a total Project
compensation of$3,776,500.00; and
WHE,JW,AS, BCRUA and Engineer executed Supplemental Contract No. 1 on July 19,2017 to
amend the scope of services and to increase the compensation by$14,100.00 for Phase I C Water
Treatment PIant Expansion to a lump stun amount total of$1,778,000.00 and by$212,000.00 for
Phase 2 Land Rights and Stakeholder Coordination Project to a maximum amount total of
$2,224,600.00 for a total Project compensation of$4,002,600.00; and
WHEREAS, BCRUA and Engineer executed Supplemental Contract No. 2 on November 20,
2017 to amend the scope of services and to increase the compensation by $19,600.00 for Phase
1C Water Treatment Plant Expansion to a Iump sum amount total of$1,797,600.00 for a total
Project compensation of$4,022,200.00; and
WHEREAS,BCRUA and Engineer executed Supplemental Contract No. 3 on April 18,2018 to
amend the scope of services and to increase the compensation by$105,200.00 for Phase 2 Land
Rights and Stakeholder Coordination Project to a maximum amount total of$2,329,800.00 for a
total Project compensation of$4,127,400.00; and
WHEREAS,BCRUA and Engineer executed Supplemental Contract No. 4 on October 24, 2018
to add the construction phase services for the Phase IC Construction Phase Services Project and
to increase the compensation by $897,200.00 for a total Project compensation of$5,024,600.00;
and
Supplemental Contract Rev.WWI I
0140.4(633440;004222673 X(� 215829
,dm �I 7-/'rC�. D~DV/
WHEREAS, it has become necessary to amend the Contract to modify the provisions for the
scope of services and to increase the compensation by$40,300.00 for Phase 1 C Water Treatment
Plant Expansion to a lump sum amount total of$2,735,100.00 for a total Project compensation of
$5,064,900.00;
NOW THE,RE, ORE,premises considered, 13 CRUA and the Engineer agree that said Contract
is amended as follows:
I.
Article 2. Engineering Services and Exhibit B. Engineering Services shall be amended as set
forth in the attached Addendum To Exhibit B. Exhibit C Work Schedule shall be amended as
set forth in the attached Addendum To Exhibit C.
II.
Article 4, Compensation and Exhibit D Fee Schedule shall be amended by increasing by
$40,300.00 the lump sum amount payable under the Contract for Phase 1C Water Treatment
Plant Expansion to a total of$2,735,100.00 for a total Project compensation of$5,064,900.00, as
shown by the attached Addendum to Exhibit D.
IN WITNESS WHEREOF, BCRUA and the Engineer have executed this Supplemental
Contract in duplicate.
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By;�
f IFH i? .tlaror DEICE,ecxit
4.1r,it fit
Date
BRUSHY CREEK REGIONAL UTILITY AUTHORITY,INC.
By. 7� -rle-►,� s
Karen Bondy, General Manager
04/30/2019
Date
APPRO S TO FORM:
By: _
Stephanj.Sheets,BCRUA Attorney
Supplemental Contract Rev.03/2011
0140.4634-40;00422673 215829
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ADDENDUM TO EXHIBIT B
ENGINEERING SERVICES
GENERAL
The purpose of Supplemental Amendment No.5 is to perform a hydraulic transient analysis of the
finished water booster pump station and associated pipelines. The results of the evaluation will be
used to select replacement pump control valves for the finished water boaster pump station. The
analysis sholl focus on the use of diaphragm-style pump control valves(e.g.,Singer, CLA-VAL)
requested by OWNER.
With OWNER'S authorization, a separate supplemental amendment shall be prepared to develop
design documents Including drawings and specifications to change order the Improvements and !
recommendations developed under Task 1.7(described below)into the Phase 1C WTP construction
contract.
BASIC SCOPE OF SERVICES
Task 1.0-Phase 1C WTP Expansion
Insert Task 1.7 as follows:
1.7 Finished Water Booster Pump Station (FWBPS) Improvements
1.7.6 Hydraulic Transient Analysis.
176.1 Coordinate with OWNER to obtain data necessary to perform the
hydraulic transient analysis including the following: lengths, diameters
and elevations of the pipeline and FWBPS and pump and valves
information Including diameters, discharge coefficients, and pump
performance curves.
1.7rR2 Develop maximum and minimum flow rates and hydraulic grade lines ;
for the •primary function of the FWBPS under two flow conditions.
Establish hydraulic grade line elevations for the pipeline under steady
state operation and static conditions.
17.63 Perform hydraulic transient analysis simulations with the proposed
pump control valves installed with and without the 2 MG elevated tank
in service. Simulations include pump power failure, controlled pump
shutdown, and pump startup.
1.7.6.4 Evaluate -the resultant pressures and determine if additional surge
control measures are required to protect the system from adverse
pressure transients (e.g., over-pressurization, vapor cavity formation, ;
and large magnitude negative pressures, air valve slam) with and
without the 2 MG elevated tank in service. f
LM If additional surge protection is needed, determine surge control i
measures for the system.The surge control measures will be designed
Walker PutmrS
englneara* surveyors
to ensure that the maximum pressures do not exceed the maximum
allowable surge pressures for the system and to eliminate the possibility
of vapor cavity formation and large magnitude pressures in the pipeline.
1.7.6:6 Prepare draft and final technical memoranda to document the analysis
results and recommendations.
1.7.7 Final Design (additional service to be authorized separately)
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ADDENDUM TO EXHIBIT C
WORK SCHEDULE
A draft technical memorandum (TM)will be submitted within 8 weeks of NTP and receiving
required data for the analysis.
A final TM will be submitted within one week of receiving comments on the draft TM.
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@'WAer Parthers
engineers*surveyors
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ADDENDUM TO EXHIBIT D
Fee Schedule
Total compensation for services under Supplemental Amendment No. 51s estimated to be$40,300 os
shown in Attachment 1.
OWNER shall pay ENGINEER for Basic Services Task 1.7 on the basis of Lump Sum as described In
Paragraph 1.0 of Exhibit D as described In Exhibit D Compensation of the Agreement dated April 19,
2017. i
Total compensation far Task 1.0—Phase 1C WTP Expansion shall be adjusted to be$2,735,100.
Total compensation for the Project shall be adjusted to$5,064,900.
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@A2 IWAer PUtWZS
engineers* surveyors
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Brushy Creok Regional Utility Aulharlty
Phase 1C WIP Expansion and Phase 3 Land Rights and Stakeholder Coordination•Supplemental Amendment No.5
Labor and Fos Summary
WalkarPartnari LobarClessMoaltons and Hours au6sarrsun.nl
Bomar Senior Walker Walker WaOnr Cost
propel ams Proaass Pnlsat Partners Partners Partners Total
TARIEDIESOMPTIO
Mon.Oer Revlavar Engineer Mnsloser Tatol Hours Expanses TattlCool HHC pat
N
Took 1A•Phos■1O WTP Expansion
1.7 Finished WagarlillocrotorPump Brettonlmprovemenla
1.76 dmdlaTren. Armlysls i 2 1 1 9 12 t0 150 f3.706 434,800 "011
Sr4 Management Fee
t,7tt0
SUBTOTAL— Z 1 < 12 18 LO ;g.41a 424400 0,500
TOTAL FEN ................. ........t. .,-:•,,;•.:x..,- .::
. f110 ;Tri. $Ogg 31.100 ''-';g0 •' '1-MARf 11/.000. f�g.51g
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