HomeMy WebLinkAboutGHD, Inc. 2014-04-16; Amendment 2 2016-12-07CITY OF UKIAH
AMENDMENT NO. 2
TO AGREEMENT FOR PROFESSIONAL CONSULTING SERVICES
DATED NOVEMBER 17, 2016
TERMS AND CONDITIONS
All terms and conditions of the Agreement for Professional Consulting Services dated
April 16, 2014 shall remain in force and effect except as modified by this first amendment.
AUTHORIZATION
Upon execution of this amendment, service provider is authorized to provide the service
described under the Scope of Additional Work identified in this Amendment No. 2.
SCOPE OF ADDITIONAL WORK
Work authorized by this amendment shall include that work described in the
October 28, 2016 Amendment for Engineering Design, Geotechnical and Construction
Oversight Services for Water Well #4 Rehabilitation and New Water Well #9 Project. A
copy of said letter is included in this first amendment at Attachment A.
COMPENSATION
Compensation for the performance of the additional work shall be in accordance with
Attachment A./. -Expenses shall not exceed a maximum total cost of $102,938
GHD, INC.
BY: (44
ALEX CULICK
Principal
412-
DATff
Amendment No. 2 to Agreement for
Professional Consulting Services
CITY OF UKIAH
BY: .-
S-A& SAKCOMO
City Mana er
/2-'7—&
DATE
October 28, 2016
Mr. Jarod Thiele Our ref: 84/11192/10
Public Works Project Analyst Your ref: coU# 1314-200
City of Ukiah
300 Seminary Avenue
Ukiah, CA 95482-5400
RE: Amendment No. 2 for Engineering Design, Geotechnical and Construction Oversight
Services for Water Well #4 Rehabilitation and New Water Well #9 Project
Dear Mr. Thiele:
GHD Inc. (GHD) is pleased to provide the City of Ukiah (City) with this proposal for additional bid period
and construction period services for the Water Well #4 Rehabilitation and New Water Well #9 Project,
dated April 16, 2014 (Contract No. 1314-200). This amendment request is for additional activities
associated with the following:
• Specification 16-01:
o Rebidding the construction installation of Replacement Well #4 and New Well #9.
o Attending the pre-bid meetings.
o Additional construction phase activities associated with the Contractor's submittals
required prior to well construction
o Additional field activities during the drilling, installation, development and testing of Test
Well #4, Production Well #4, Test Well #9 and Production Well #9.
o Creation of graphic representation of Well #9 relative to Orr Creek for public presentation
to City Council.
• Specification 16-02:
o Attending the pre-bid meeting.
o Additional design and construction services to increase the pumping capacity at Well #4
o Additional design and construction services to decrease the pumping capacity at Well #9.
Specification 16-01: Additional Bidding and Construction Support Services
The scope of services for bid support services is similar in both Contract No. 1314-200 for design of Well
#9, and Amendment No. 1 which added design of Well #4. Bid support services are provided as subtasks
under Task 10 and Task 22. The scope was limited to responding to questions from bidding contractors
84/11192/10/GHD Amendment 2 Welll 4 & 9 Scope-R2.docx
and as -needed technical support for the City. The bid support scope did not include GHD attendance at
pre-bid meetings.
At the City's request GHD attended the first pre-bid meeting for Specification 16-01. Bids were received
from two drilling companies. Both bids had errors in response that caused the City to reject both bids.
One bidder took exception to the requirements of the specification and the other did not acknowledge
receipt of all addendums. GHD clarified the requirements in the specifications and drawings, and reissued
a new set of Mylar drawings for bidding. GHD also attended the pre-bid meeting for the rebid of
Specification 16-01.
The scope of work associated with Contractor submittals required prior to well construction includes
reviews of multiple Contractor submittals and resubmittals of the project construction schedule, well
abandonment plan, water pollution control plan, and premobilization submittals. Contractor submittals
were significantly lacking in information required by the contract.
GHD's project team also attended multiple unbudgeted conference calls and meetings with the City and
Contractor to assist in submittal requirements and to assist the Contractor in preparing the required plans
and submittals.
The construction contract schedule was extended beyond the contract working days. As requested by the
City, GHD provided additional field observation and construction documentation support services
throughout the schedule extension.
The Contractor struggled to develop Well #4, requiring multiple remobilizations to the site to perform
additional well development and CCTV video inspections. GHD provided additional field observation
services and technical advice during this time including reviews of two additional CCTV inspection videos
of the well.
Worked with the City and NorCal Pump and Drilling to develop a Mud Plan prior to the drilling of new Well
9, to minimize the impact to the formation from the drilling fluid. GHD provided oversight during the entire
drilling process, well installation and development of the new Well 9. GHD provided additional support to
the City during the setup and performance of the well pump test and discharge water management. Water
management required additional support due to the increased flow achieved from expected rate.
At the request of the City, GHD prepared a graphic of Well #9 relative to Orrs Creek including
presentation of a -log and lithologic data for public presentation during a City Council meeting. The graphic
will be conceptual in nature but based on actual field data, and will show and label well features, casing,
perforations, clay / gravel / sand layers, static ground water, groundwater draw down during sustained
pumping, and Orrs Creek water level. The intent of the graphic is to demonstrate to the City Council that
there is no hydrologic/ hydraulic connection between the groundwater supplied by Production Well #9
and surface waters in Orrs Creek.
Specification 16-02 Site Design Revisions
The scope of services was limited to responding to questions from bidding contractors and as -needed
technical support for the City. The bid support scope did not include GHD attendance at pre-bid meetings.
At the City's request GHD attended the pre-bid meeting for Specification 16-02.
The scope of work associated with well pumping capacity is related to the estimated production of Well #4
following completion of well construction and development being greater than the design production, and
the estimated production of Well #9 following completion of well construction and development being less
than the design production. Both Well #4 and Well #9, and their related building and site piping and
equipment were designed based on a firm,pumping capacity of 900 gallons per minute (gpm) utilizing 100
horsepower pumps. Upon completion of the monitoring/test wells at each site and pump testing of those
wells it was determined Well #4 is capable of achieving a firm pumping capacity of 1,300 gpm with
acceptable drawdown, and Well #9 is capable of achieving a firm pumping capacity of 700 gpm with an
acceptable drawdown. The City has approved construction of both wells and site improvements.
Revisions to the construction documents are required to increase the pumping capacity at Well #4 and
decrease the pumping capacity at Well #9. Also Well #9 was installed at a different location than was
shown on the drawings and staked in the field. These revisions include:
• PCO #001: Revisions to the specified pump duty condition and pump and motor horsepower at
Well #4;
• PCO #001: Revisions to Well #4 electrical service size, transfer switch, conduits and conductors,
and associated electrical equipment to support a higher horsepower pump;
• PCO #001: Revisions to electrical equipment at Well #4 to support a higher pumping rate;
• PCO #002: Adding a Mendocino County Standard commercial driveway entrance and wider gate
at the Well #9 site;
• PCO #002: Revising the location of the Well #9 well head, enclosure and associated electrical
and piping to reflect the location the well was actually constructed.
• PCO #003: Revisions to the Well #4 site utility plan and development of a PCO to remove items
of work which were completed by others.
• PCO #004: The addition of solenoids on valves and related electrical and instrumentation
improvements in the well buildings at Well #4 and Well #9 to allow for automated or remote
operations.
• Preparing, issuing, reviewing and negotiating change orders associated with the design revisions.
These design revisions require changes to construction contract drawings and the specifications. The
table below summarizes the additional professional service fees for these services.
The table below is a summary of the overall project budget reflecting approved and pending amendments.
Please feel free to contact Dave or myself if you have any questions about this proposal or need any
additional information.
Sincerely
GHD Inc.
Matt Kennedy, PE,
Associate / Construction
707.540.3376
7::J �1-114�/ "-!�
David J. Vossler, PG
Associate / Project Manager
707.540.9954
Attachment 1
GHD - PROJECT FEE ESTIMATING SHEET
Project Name: Ukiah Well #4 / #9 Drilling and Site Improvements
Prepared by: Dave Vossler/Matt Kennedy
Job Number: 8411192
Client: City of Ukiah
Date: October 28, 2016
`OTHER DIRECT COSTS include telephone, mileage, printing, photocopies and other miscellaneous direct expenses.
10/28/201.6 Page 1
LABOR COSTS
FEE COMPUTATION
Task /Item
LABORCATEGORY>
RATE >
PM
$175
/Hr
Sr.
Civil
$195
/Hr
Civil
Eng.
$145
/Hr
Sr.
Elec.
$170
/Hr
Elec.
Eng.
$135
/Hr
Sr.
Geologist
$175
/Hr
Pro,.
Geologist
$150
/Hr
CAD
Design
$125
/Hr
WP
$100
/Hr
PA
$100
/Hr
TOTAL
HOURS
*OTHER
DIRECT
COSTS
Sub-
con -
sultant(s)
TOTAL
FEE
TASK- 10.0 Well #9 Bid Phase & Construction Engr
10.1 Spec 16-01 Additional Bid Support
20
16
8
16
16
8 1
1
86
$824
$15,004
10.2 Spec 16-01 Additional Const Support
8
4
16
16
44
$220
$7,600
SUBTOTAL TASK 10.0
28
20
8
0
0
32
32
8 1
1
130
$1,044
$0
$22,604
TASK- 22.0 Well #4 Bid Phase & Construction Engr
22.1 Spec 16-01 Additional Const Support
8
8
8
2
26
$171
$4,731
SUBTOTAL TASK 22.0
8
8
01
0
01
8
0
0 0
2
26
$171
$0
$4,731
TASK- 27.0 Well Drilling/Construction Support
27.1 Spec 16-01 Submittals & Meetings
1
13
16
1
31
$186
$5,796
27.2 Spec 16-01 Field Construction Assistance
275
275
$3,025
$51,150
27.3 Spec 16-01 Develop Presentation Graphics
21
8
8
8
26
$156
$4,146
SUBTOTAL TASK 27.0
1
151
0
01
0
299
81
8 0#1
332
$3,367
$0
$61,092
TASK- 28.0 Well Site Design Revisions
28.1 Spec 16-02 Well #4 Design Revisions (PCO#001)
1
12
16
8
8
6
51
$306
$8,331
28.2 Spec 16-02 Well #9 Design Revisions PCO #002
1
2
8
1
4
16
$96
$2,491
28.3 Spec 16-02 Well #4/9 Design Revisions (PCO #003)
1
2
8
3
6
4
24
$144
$3,689
SUBTOTAL TASK 28.0
3
16
32
12
14
0
0
14 0
0
91
$546
$0
$14,511
PROJECT TOTALS
40
59
40
12
14
339
40
30 1
4
579
$5,128
$0
$102,938
`OTHER DIRECT COSTS include telephone, mileage, printing, photocopies and other miscellaneous direct expenses.
10/28/201.6 Page 1