HomeMy WebLinkAboutC2019-478 - 8/20/2019 - NA CITY OF CORPUS CHRISTI
AMENDMENT NO. 3 to the
CONTRACT FOR PROFESSIONAL SERVICES
The City of Corpus Christi, Texas, hereinafter called "CITY," and Alan Plummer Associates, Inc.,
hereinafter called "CONSULTANT," agree to the following amendment to the Contract for Professional
Services for Greenwood Wastewater Treatment Plant Facility Flood Mitigation (Project No.
18070A) as authorized and administratively amended by:
Original Contract April 25, 2018 Administrative Approval $49,700.00
Amendment No. 1 November 13, 2018 Motion No. 2018-216 $339,895.00
Amendment No. 2 June 5, 2019 Administrative Approval $0.00
IN THE ORIGINAL CONTRACT, EXHIBIT A, SCOPE OF SERVICES, shall be modified as shown in
the attached Exhibit A.
IN THE ORIGINAL CONTRACT, COMPENSATION shall be modified as shown in the attached Exhibit
A for an additional fee not to exceed $0.00 for a total restated fee not to exceed $389,595.00
All other terms and conditions of the April 25, 2018 contract between the "CITY" and 'CONSULTANT"
and of any amendments to that contract which are not specifically addressed herein shall remain in full
force and effect.
CITY OF CO S STI ALAN PLUMMER ASSOCIATES, INC.
- Sh-)Ir QA47/17
J ff H. Edmonds, P.E. Rex H. Hunt ate
Director of Engineering Services Principal
5934 S. Staples St. Suite 220
(361) 356-8412 Office
rhunt@apaienv.com
APPROVED AS TO FORM
; • 2019.08.19
16:07:23 -05'00'
Legal Department Date
ATTEST
1 e..6C( Lt,
CITY SECRETARY
Page 1 of 1
Amendment No. 3
SCANNED
PLUMMER
0537-034-01
August 7, 2019
Mr. Pablo G. Martinez, P.E., C.P.M.
Project Manager
Engineering Department
Corpus Christi, TX 78414
Re: Greenwood Wastewater Treatment Plant Flood Mitigation
City Project No. 18070A
Request for Amendment 3—Saratoga/Greenwood 2D Simulations
Dear Mr. Martinez:
Alan Plummer Associates, Inc. is requesting an amendment to the Greenwood
Wastewater Treatment Plant Facility Flood Mitigation contract to include additional
modeling of the site and all of the items in the attached proposal. 2D modeling of the
Saratoga/Greenwood intersection will be used to provide two alternatives to address
the localized flooding at the plant.
The additional cost of this work is $60,754.50, including markup, as shown in the
attached Summary of Fees. This cost will be covered as a no-cost change by removing
the Environmental portion of the original scope. A total of$3,455 will remain in the
Additional Services budget to be used as directed by the City.
If you have any questions, please call me at (817) 806-1700.
Sincerely,
J- rey E Caffey, P.E.
Texas No. 81896
Project Manager
JEC/scmk
1320 South University Drive,Suite 300
Fort Worth,Texas 76107
Phone 817.806.1700
Fax 817.870.2536
Plummer.com EXHIBIT A
TBPE Firm No.13
Page 1 of 5
fl Lockwood,Andrews
&Newnam,Inc.
A LEO A DALY COMPANY
Exhibit A-1 - SCOPE OF SERVICES
A. Scope of Work
LAN met with APAI and city staff on February 25, 2019 to discuss the status of the Greenwood
WWTP. APAI presented three desktop level options for achieving flood protection of the WWTP.
During the discussion with plant operations staff there was suspicion that the levee would solve
the actual flood events experienced at the Greenwood plant. The operations staff noted that the
elevation of La Volla Creek, originally thought to be the source of flooding, was not at flood stage
when the flooding of the pump house occurred. Following the discussion, there was concern that
indeterminate drainage from the Saratoga and Greenwood intersection could be a source of
localized flooding.
The scope of services provided prior to this supplemental scope and fee assumed that the design
storm event was the 100-year riverine flooding from La Volla Creek. Following the revelations of
the February meeting, it has become apparent that the scope of analysis should be expanded to
include localized flooding which may occur more frequently and could potentially continue to occur
even after the levee construction is complete.
LAN proposes the following tasks:
A. Task 1- Saratoga/Greenwood 2D simulations
A. Task 1—Saratoga/Greenwood 2D Simulations
a. Create a 2D rain-on-mesh simulation using InfoWorks ICM using simplified excess rainfall
assumptions for the 2-, 5-, 25-, and 100-year events;
a. Limited to a single model run with QA/QC;
b. Refine the XPSWMM 2D model to be used for the overall site using the flow patterns
developed from the rain-on-mesh model;
a. Limited to a single model run with QA/QC;
c. Based on the model results, provide two alternatives for addressing localized flooding
contributing to the Greenwood WWTP site;
a. Map two alternatives;
b. Provide programmatic OPCC;
c. Preliminary utility conflict analyses based on city-wide water and sanitary sewer
data;
d. Limited to two model runs with QA/QC;
d. Summarize the results in a technical memorandum and present to city for review and
comment;
a. Complete quality control review;
e. Final results of memo will be presented as an appendix to the final report already scoped;
a. Complete quality control review;
f. Develop channelization model for lower La Volla Creek to Oso Creek – LAN will use an
estimated Ordinary High Water Mark (OHWM) determined from contour and high
frequency rainfall events to develop a channelization model using a similar geometry to
the Urban Engineering grading being completed downstream of Saratoga. The results of
this model will be used to determine the extent of water surface elevation reduction can
be obtained from channelization downstream to achieve flood risk reduction and a lower
EXHIBIT A
Page 2 of 5
•
•
•
WSEL for protection of the Greenwood WWTP. High level cost estimates will be developed
based on rough approximations of channel volumes using "average end area" method.
The results of this analysis will be summarized in a brief technical memorandum along
with the two tasks above to later become an appendix to the PPR report developed by
APAI.
a. Limited to two alternatives based on cross section configuration and horizontal
alignment;
b. No review of environmental permitting, mitigation,or associated costs is included
in this scope. An environmental subconsultant will be retained via supplemental
services if these services are desired;
B. Assumptions and Limitations
LAN's proposal and fees described herein are based on the following assumptions and limitations:
a. The following evaluations will be performed by APAI:
i. Surveying—LAN assumes that the reference benchmarks used will be the same
benchmarks for the survey used for the UV replacement project. It is assumed
that LAN will be provided an opportunity to review the survey deliverables prior
to finalization in the event that key elevation data is identified for use in modeling;
b. Any additional geotechnical sampling and testing will be performed by a third party
consultant directly under the contract with the City of Corpus Christi.
c. LAN's services exclude:
i. Geotechnical Sampling and Testing
ii. Environmental permitting or permit review and compliance
iii. Exhaustive coordination with other sub-consultants or consultants outside of the
project team
C. Opinions of Probable Construction Costs
LAN will perform conceptual cost estimating to determine an opinion of probable construction costs
for the flood mitigation improvements.
Opinions of probable project cost will be made based on LAN's experience and qualifications and
represent our judgment as an experienced and qualified professional generally familiar with the
industry. However, since we have no control over the cost of labor, materials, equipment, or
services furnished by others, or over the Contractor's methods of determining prices, or over
competitive bidding or market conditions, LAN cannot and does not guarantee that proposals,bids,
or actual project cost will not vary from opinions of probable costs submitted.
If APAI or the Owner wish greater assurance as to probable costs, consideration should be given
to retaining an independent cost estimator.
D. Summary of Fee's
LAN proposes to provide these services for a lump sum fee of$52,830 in accordance with the
attached terms and conditions. Any work outside the proposed scope will be added, with
authorization from APAI, through a contract amendment. This proposal is valid for 45 calendar
days from the date on this proposal.
EXHIBIT A
Page 3 of 5
The following table summarizes the fees associated with each task:
Summary of Fees
Task Fee
Task 1 Saratoga/Greenwood 2D Simulations $52,830
EXHIBIT A
Page 4 of 5
Greenwood Wastewater Treatment Plant Facility Flood Mitigation
CITY PROJECT NO. 18070A
SUMMARY OF FEES
Original Amendment No. Amendment No. Amendment No.
Basic Services: Contract 1 2 3 Total Contract
Preliminary Phase $49,700.00 $254,698.00 $60,754.50 $365,152.50
Design Phase $0.00
Bid Phase $0.00
Construction Admin Phase $0.00
Subtotal Basic Services $49,700.00 $254,698.00 $0.00 $60,754.50 $365,152.50 •
Additional Services:
Permit Prepartion $29,760.00 -$29,760.00 $0.00
Topographic Survey $20,987.50 $20,987.50
ROW Acquisition Survey $0.00
Environmental Issues $55,437.00 $8,772.50 -$60,754.50 $3,455.00
Public Meetings $0.00
Construction Observation $0.00
Traffic Control $0.00
Signalization Improvements $0.00
Warranty Phase $0.00
Construction Inspection (T&M) $0.00
Platting Survey $0.00
O & M Manuals $0.00 •
SCADA $0.00
Subtotal Additional Services $0.00 $85,197.00 $0.00 -$60,754.50 $24,442.50 •
Summary of Fees:
Basic Services Fees $49,700.00 $254,698.00 $0.00 $60,754.50 $365,152.50
t X Additional Services Fees $0.00 $85,197.00 $0.00 -$60,754.50 $24,442.50
A 2 Total Authorized Fees $49,700.00 $339,895.00 $0.00 $0.00 $389,595.00
N W April 25, 2018 Nov. 13, 2018 June 5, 2019 Pending
2 -I Admin Approval Motion M2018-216 Admin Approval Admin Approval
Ua
Sample form for:
Request
COMPLETE PROJECT NAME PaymentAEContract
Project No. XXXX Revised 02/01/17
Invoice No. 12345
Invoice Date 01/01/2017
Total Current Previous Total Remaining Percent
Basic Services: Contract Amd No. 1 Amd No. 2 Contract Invoice Invoice Invoice Balance Complete
Preliminary Phase $1,000.00 $0.00 $0.00 $1,000.00 $0.00 $1,000.00 $1,000.00 $0.00 100.0%
Design Phase $2,000.00 $1,000.00 $0.00 $3,000.00 $1,000.00 $500.00 $1,500.00 $1,500.00 50.0% •
Bid Phase $500.00 $0.00 $250.00 $750.00 $0.00 $0.00 $0.00 $750.00 0.0%
Construction Phase $2,500.00 $0.00 $1,000.00 $3,500.00 $0.00 $0.00 $0.00 $3,500.00 0.0% .
Subtotal Basic Services $6,000.00 $1,000.00 $1,250.00 $8,250.00 $1,000.00 $1,500.00 $2,500.00 $5,750.00 30.3%
Additional Services:
Permitting $2,000.00 $0.00 $0.00 $2,000.00 $500.00 $0.00 $500.00 $1,500.00 25.0%
Warranty Phase $0.00 $1,120.00 $0.00 $1,120.00 $0.00 $0.00 $0.00 $1,120.00 0.0%
Inspection $0.00 $0.00 $1,627.00_ $1,627.00 $0.00 $0.00 $0.00 $1,627.00 0.0%
Platting Survey TBD TBD TBD_ TBD TBD TBD TBD TBD TBD
0 & M Manuals TBD TBD TBD TBD TBD TBD TBD TBD TBD
SCADA TBD TBD TBD TBD TBD TBD TBD TBD TBD
Subtotal Additional Services $2,000.00 $1,120.00 $1,627.00 $4,747.00 $500.00 $0.00 $500.00 $4,247.00 10.5%
Summary of Fees:
Basic Services Fees $6,000.00 $1,000.00 $1,250.00 $8,250.00 $1,000.00 $1,500.00 $2,500.00 $5,750.00 30.3%
Additional Services Fees I $2,000.00 $1,120.00 $1,627.00 $4,747.00 $500.00 $0.00 $500.00 $4,247.00 10.5% .
Total of Fees $8,000.00 $2,120.00 $2,877.00 $12,997.00 $1,500.00 $1,500.00 $3,000.00 $9,997.00 23.1%
Notes:
If needed, update this sample form based on the contract requirements.
If applicable, refer to the contract for information on what to include with time and materials (T&M).
-om
CD x
CO s
CD
0 CO
EXHIBIT B-1
CONFIDENTIAL RATE SHEET
Rate sheets are confidential pursuant to section 552.104 of the Texas Government
Code since release of this information would give advantage to a competitor or bidder.
In addition, section 552.110 of the TX Govt. Code protects third party commercial and
financial information if release of the information would cause the third party substantial
competitive harm. Final determination of confidentiality will be made by the Texas
Attorney General.
DOCUMENTATION OF PROVISIONAL / OVERHEAD RATES: Overhead rate
documentation has been provided to the City of Corpus Christi and was utilized in
reviewing and approving the loaded hourly rates below.
PRINCIPALS: The Consultant must provide documentation with each payment request
that clearly indicates how a Principal's time is allocated and the justification for that
allocation.
PRINCIPAL(S): HOURLY RATE TX REGISTRATION #:
($/h r)
Project Consultant:
CAD Technician:
Clerical:
Other—specify:
SUBCONSULTANT(S):
(firm)
Principal(s):
Project Consultant:
CAD Technician:
Clerical
Other— specify:
Add additional subconsultants as needed.
Exhibit B-1
Confidential Rate Sheet
Page 1 of 1
EXHIBIT C
Insurance Requirements
Pre-Design, Design and General Consulting Contracts
1.1 Consultant must not commence work under this agreement until all required
insurance has been obtained and such insurance has been approved by the City.
Consultant must not allow any subcontractor to commence work until all similar insurance
required of any subcontractor has been obtained.
1.2 Consultant must furnish to the Director of Engineering Services with the signed
agreement a copy of Certificates of Insurance (COI) with applicable policy endorsements
showing the following minimum coverage by an insurance company(s) acceptable to the
City's Risk Manager. A waiver of subrogation is required on all applicable policies.
Endorsements must be provided with COI. Project name and or number must be
listed in Description Box of COI.
TYPE OF INSURANCE MINIMUM INSURANCE COVERAGE
30-written day notice of cancellation, Bodily Injury and Property Damage
required on all certificates or by Per occurrence - aggregate
applicable policy endorsements
PROFESSIONAL LIABILITY $1,000,000 Per Claim
(Errors and Omissions)
If claims made policy, retro date must be
prior to inception of agreement, have
extended reporting period provisions
and identify any limitations regarding
who is insured.
1.3 In the event of accidents of any kind related to this agreement, Consultant must
furnish the City with copies of all reports of any accidents within 10 days of the accident.
1.4 Consultant shall obtain and maintain in full force and effect for the duration of this
Contract, and any extension hereof, at Consultant's sole expense, insurance coverage
written on an occurrence basis, by companies authorized and admitted to do business in
the State of Texas and with an A.M. Best's rating of no less than A- VII. Consultant is
required to provide City with renewal Certificates.
1.5 In the event of a change in insurance coverage, Consultant shall be required to
submit a copy of the replacement certificate of insurance to City at the address provided
below within 10 business days of said change. Consultant shall pay any costs resulting
1 Rev 04/17
Exhibit C
Page 1 of 2
•
from said changes. All notices under this Article shall be given to City at the following
address:
City of Corpus Christi
Attn: Engineering Services
P.O. Box 9277
Corpus Christi, TX 78469-9277
1.6 Consultant agrees that with respect to the above required insurance, all
insurance policies are to contain or be endorsed to contain the following required
provisions:
1.6.1 If the policy is cancelled, other than for nonpayment of premium,
notice of such cancellation will be provided at least 30 days in advance of
the cancellation effective date to the certificate holder;
1.6.2 If the policy is cancelled for nonpayment of premium, notice of such
cancellation will be provided within 10 days of the cancellation effective date
to the certificate holder.
1.7 Within five (5) calendar days of a suspension, cancellation or non-renewal of
coverage, Consultant shall notify City of such lapse in coverage and provide a
replacement Certificate of Insurance and applicable endorsements to City. City shall have
the option to suspend Consultant's performance should there be a lapse in coverage at
any time during this contract. Failure to provide and to maintain the required insurance
shall constitute a material breach of this contract.
1.8 In addition to any other remedies the City may have upon Consultant's failure to
provide and maintain any insurance or policy endorsements to the extent and within the
time herein required, the City shall have the right to withhold any payment(s) if any, which
become due to Consultant hereunder until Consultant demonstrates compliance with the
requirements hereof.
1.9 Nothing herein contained shall be construed as limiting in any way the extent to
which Consultant may be held responsible for payments of damages to persons or
property resulting from Consultant's or its subcontractor's performance of the work
covered under this agreement.
1.10 It is agreed that Consultant's insurance shall be deemed primary and non-
contributory with respect to any insurance or self-insurance carried by the City of Corpus
Christi for liability arising out of operations under this agreement.
1.11 It is understood and agreed that the insurance required is in addition to and
separate from any other obligation contained in this agreement.
2 Rev 04/17
Exhibit C
Page 2 of 2