HomeMy WebLinkAboutEarthTech - Supplemental Agreement #1 East Side Sanitary Sewer Interceptor - 12/12/2005 1103
EarthTech 501 Sycamore Street P 319.232.6531
Suite 222 F 319.232.0271
A tgCO International Ltd.Company Waterloo, IA 50703 earthtech.com
SUPPLEMENTAL AGREEMENT NO. 1
EAST SIDE SANITARY SEWER INTERCEPTOR
WATERLOO,IOWA
WHEREAS,a Professional Services Agreement was entered into between the City of Waterloo,Iowa,(Client)
and Earth Tech, Inc., of Waterloo, Iowa, dated September 6, 2005, for the investigation of alternative
alignments for the East Side Interceptor Sanitary Sewer in Waterloo, Iowa; and
WHEREAS,the Client and Earth Tech now desire to enter into Supplemental Agreement No. 1 for Phase II-
Design Services and Phase III-Construction Phase Services for construction of sanitary sewer along the flood
control dike between 6`"Street and 1 Oth Street.
NOW THEREFORE,it is mutually agreed to amend the original Professional Services Agreement as follows:
I. PROJECT DESCRIPTION
The East Side Sanitary Sewer Interceptor-Segment 1 consists of construction of approximately 2,500
L.F.of 60-inch diameter pipe running generally along the flood control berm between 6"'Street and
10'' Street. The project will shift a portion of the city's east side sanitary sewer interceptor system
from the river side of the flood control berm.
The design of the project will evaluate the current 48-inch pipe and connection at 6a'Street to see if it
can be used and/or rehabilitated for use to avoid construction of the new pipe in the vicinity of 6h
Street and the railroad.
II. SCOPE OF SERVICES
The Scope of Services will include the work, services,materials,equipment,personnel and supplies
necessary to provide design survey, final design, preparation of plans, specifications and contract
documents in a format compatible with City of Waterloo standards,assistance with bidding,review of
bids and recommendation of award, and construction-related services after contract award. The
services are further defined as follows:
Design Services
1. Assign a project manager who will coordinate project activities and will be the principal
liaison between the Client, Consultant and regulatory agencies.
2. Attend meetings with representatives of the Client to review the design objectives at
appropriate times. One of the initial objectives will be to locate the relief sewer to maximize
the flows that may be redirected to the intercity interceptor.
3. Conduct field surveys to collect data to assist in the preparation of the plans. Property surveys
are not included in this task.
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4. Collect information from the Client and utilities in the project area to assist in the preparation
of the plans. Earth Tech may rely upon this information without independent verification in
performing the Services.
5. Prepare plans using aerial photo base maps.
6. Assist the Client in compiling existing subsurface information. When,in the opinion of Earth
Tech, additional soil borings or other subsurface explorations are necessary to secure
information for design purposes,Earth Tech will assist the Client in selecting a geotechnical
engineering consultant to perform the subsurface explorations and prepare a geotechnical
report.
7. Prepare up to three easement and property descriptions for use by the Client in preparing
easement and property acquisition documents.
8. Prepare construction bidding documents for receiving competitive bids. Such documents will
be based on Client standards.
9. Prepare an estimate of probable construction costs for the proposed project.
10. Submit the bidding document to the Client for review and approval.
11. Meet with the Client to discuss the bidding documents and revise the bidding documents in
response to expressed concerns by the Client.
12. Assist the Client in obtaining approval of the Iowa Department of Natural Resources and the
U.S. Army Corps of Engineers by submitting documents to said agencies and responding to
comments,if necessary.
13. Prepare up to 30 sets of contract documents for distribution to plan rooms, suppliers and
potential bidders.
14. Assist the Client in advertising for and receiving bids,analyze the bids received and prepare a
recommendation to the Client for award of contract.
Construction-Related Services
1. Assist the Client in assembling the contract documents for execution by the Contractor and
the Client.
2. Conduct a preconstruction conference with representatives of the Contractor, Client,
Consultant and affected utilities and other interested parties.
3. Provide horizontal and vertical control for the project including:
3.1 Grade Stakes-Line, grade and manhole locations.
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3.2 Construction Limits - Identify where needed. Property staking or surveys are not
included within the scope of this item.
4. Review shop drawings and other submittals as required of the Contractor by the contract
documents for conformance with the design concept of the Project and compliance with the
information given in the contract documents.
5. Answer design interpretation questions from the Client, Contractor, review staff and
appropriate agencies.
6. Process monthly applications for payment submitted by the Contractor and forward to the
Client for execution with recommendations for approval and payment.
7. Witness/provide,where applicable,field testing of the facilities furnished under the contract
to assist in determining conformance with the contract documents.
8. Visit the construction site by design personnel at appropriate stages of construction to review
the quality of the work and to determine, in general, whether the work conforms with the
contract documents.
9. Assist the Client and Contractor in preparing and processing contract change orders.
10. Provide periodic field observation during construction to review the work of the Contractor to
determine if the work is proceeding in general accordance with the contract documents and
that completed work appears to conform to the contract documents.
Anticipating the construction schedule to be approximately 90 days,periodic field observation
staff shall consist of a field representative for approximately 360 hours of service. Staffing
requirements may be adjusted during the project in relation to the level of construction
activity.
11. Report to the Client any work believed to be unsatisfactory, faulty or defective or does not
conform to the contract documents,and advise the Client of any work that should be corrected
or rejected.
12. Consider and evaluate Contractor's suggestions for modifications and report them with
recommendations to the Client.
13. Maintain files for correspondence,reports of the job conferences,shop drawings and sample
submissions,reproductions of original contract documents including addenda,change orders,
field modifications, additional drawings,issued subsequent to the execution of the contract,
Engineer clarifications and interpretations of the contract documents, progress reports and
other project-related documents.
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14. Keep a diary, log book or report for those times on site, recording hours on the job site;
weather conditions;data relative to questions of extras or deductions;list of visiting officials
and representatives of manufacturers, fabricators, suppliers and distributors; activities;
decisions,observations in general and specific observations in more detail when necessary,as
in the case of observing test procedures.
15. Conduct a review of the project near completion and prepare a list of items to be completed or
corrected.
16. Perform a field observation of the completed project before a final application for payment is
processed for the Contractor.
17. Provide the Client with a copy of revised drawings of the construction plans for the project
based on the construction observation records of the review staff and Contractor showing
those changes made during construction considered significant.
18. Assist the Client with the final close-out documentation from the Contractor.
III. COMPENSATION AND PAYMENT
Compensation for the above services shall be on an hourly basis in accordance with the hourly fees
and other direct expenses at the time the services are performed. The estimated compensation of One
Hundred Ten Thousand Dollars($110,000.00)shall not be exceeded without authorization from the
Client.
IV. In all other respects, the obligations of the Client and Earth Tech shall remain as specified in the
Professional Services Agreement dated September 6,2005.
IN WITNESS WHEREOF, the parties hereto have executed this Supplemental Agreement No. 1 as of the
dates shown below.
CITY OF WATERLOO,IOWA EARTH TECH,INC.
By: By:ILI
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Date: `a'1 a—V S Date: l V I 7/? )v $�
ATTEST:
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