HomeMy WebLinkAboutAECOM - Hydrologic Modeling - 12/10/2018 AECOM 319-232-6531 tel
PECOM 501 Sycamore Street 319-232-0271 fax
Suite 222
Waterloo,Iowa 50703
www.aecom.com
HYDROLOGIC MODELING (2018)
CITY OF WATERLOO, IOWA
PROFESSIONAL SERVICE AGREEMENT
This Agreement is made and entered by and between AECOM Technical Services, Inc., 501
Sycamore Street, Suite 222, Waterloo, Iowa, hereinafter referred to as"ATS"and City of Waterloo, 715
Mulberry Street, Waterloo, Iowa, hereinafter referred to as"CLIENT."
IN CONSIDERATION of the covenants hereinafter set forth, the parties hereto mutually agree as
follows:
I. SCOPE OF SERVICES
ATS shall perform professional Services (the "Services") in connection with CLIENT's facilities
in accordance with the Scope of Services set forth in Exhibit A attached hereto.
II. ATS'S RESPONSIBILITIES
ATS shall, subject to the terms and provisions of this Agreement:
(a) Appoint one or more individuals who shall be authorized to act on behalf of ATS and
with whom CLIENT may consult at all reasonable times, and whose instructions,
requests, and decisions will be binding upon ATS as to all matters pertaining to this
Agreement and the performance of the parties hereunder.
(b) Use all reasonable efforts to complete the Services within the time period mutually
agreed upon, except for reasons beyond its control.
(c) Perform the Services in accordance with generally accepted professional engineering
standards in existence at the time of performance of the Services. If during the two
year period following the completion of Services, it is shown that there is an error in
the Services solely as a result of ATS's failure to meet these standards, ATS shall re-
perform such substandard Services as may be necessary to remedy such error at no
cost to CLIENT. Since ATS has no control over local conditions, the cost of labor and
materials, or over competitive bidding and market conditions, ATS does not guarantee
the accuracy of any construction cost estimates as compared to contractor's bids or
the actual cost to the CLIENT. ATS makes no other warranties either express or
implied and the parties' rights, liabilities, responsibilities and remedies with respect to
the quality of Services, including claims alleging negligence, breach of warranty and
breach of contract, shall be exclusively those set forth herein.
(d) ATS shall, if requested in writing by CLIENT, for the protection of CLIENT, require
from all vendors and subcontractors from which ATS procures equipment, materials
or services for the project, guarantees with respect to such equipment, materials and
services. All such guarantees shall be made available to CLIENT to the full extent of
the terms thereof. ATS's liability with respect to such equipment and materials
obtained from vendors or services from subcontractors, shall be limited to procuring
guarantees from such vendors or subcontractors and rendering all reasonable
assistance to CLIENT for the purpose of enforcing the same.
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(e) ATS will be providing estimates of costs to the CLIENT covering an extended period
of time. ATS does not have control over any such costs, including, but not limited to,
costs of labor, material, equipment or services furnished by others or over competitive
bidding, marketing or negotiating conditions, or construction contractors' methods of
determining their prices. Accordingly, it is acknowledged and understood that any
estimates, projections or opinions of probable project costs provided herein by ATS
are estimates only, made on the basis of ATS's experience and represent ATS's
reasonable judgment as a qualified professional. ATS does not guaranty that
proposals, bids or actual project costs will not vary from the opinions of probable costs
prepared by ATS, and the CLIENT waives any and all claims that it may have against
ATS as a result of any such variance.
III. CLIENT'S RESPONSIBILITIES
CLIENT shall at such times as may be required for the successful and expeditious completion
of the Services;
(a) Provide all criteria and information as to CLIENT's requirements; obtain all necessary
approvals and permits required from all governmental authorities having jurisdiction
over the project; and designate a person with authority to act on CLIENT's behalf on
all matters concerning the Services.
(b) Furnish to ATS all existing studies, reports and other available data pertinent to the
Services, and obtain additional reports, data and services as may be required for the
project. ATS shall be entitled to rely upon all such information, data and the results of
such other services in performing its Services hereunder.
IV. INDEMNIFICATION
ATS agrees to indemnify and hold harmless CLIENT from and against any and all suits,
actions, damages, loss, liability or costs (including, without limitation, reasonable attorneys'
fees directly related thereto) for bodily injury or death of any person or damage to third party
property if and to the extent arising from the negligent errors or omissions or willful misconduct
of ATS during the performance of the Services hereunder.
V. INSURANCE
Commencing with the performance of the Services, and continuing until the earlier of
acceptance of the Services or termination of this Agreement, ATS shall maintain standard
insurance policies as follows:
(a) Workers' Compensation and/or all other Social Insurance in accordance with the
statutory requirements of the state having jurisdiction over ATS's employees who are
engaged in the Services, with Employer's Liability not less than One Hundred
Thousand Dollars ($100,000) each accident;
(b) Commercial General Bodily Injury and Property Damage Liability and Automobile
liability insurance including (owned, non-owned, or hired), each in a combined single
limit of One Million Dollars ($1,000,000) each occurrence for bodily injury and property
damage liability. This policy includes Contractual Liability coverage. ATS agrees to
name CLIENT as Additional Insured on this policy, but only to the extent of ATS's
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negligence under this Agreement and only to the extent of the insurance limits
specified herein.
(c) Professional Liability Insurance with limits of $1,000,000 per claim and in the
aggregate covering ATS against all sums which ATS may become legally obligated to
pay on account of any professional liability arising out of the performance of this
Agreement.
ATS agrees to provide CLIENT with certificates of insurance evidencing the above described
coverage prior to the start of Services hereunder and annually thereafter if required. ATS shall
provide prompt notice to the CLIENT in the event of cancellation, material change, or non-
renewal per standard ISO Acord Form wording and the policy provisions.
VI. COMPENSATION AND TERMS OF PAYMENT
Compensation for the services shall be on an hourly basis in accordance with the hourly
fees and other direct expenses in effect at the time the services are performed. Total
compensation is a not-to-exceed fee of Forty-Nine Thousand Eight Hundred Dollars
($49,800.00).
ATS may bill the Client monthly for services completed at the time of billing. CLIENT agrees
to pay ATS the full amount of such invoice within thirty (30) days after receipt thereof. In the
event CLIENT disputes any invoice item, CLIENT shall give ATS written notice of such
disputed item within ten (10) days after receipt of invoice and shall pay to ATS the undisputed
portion of the invoice according to the provisions hereof. CLIENT agrees to abide by any
applicable statutory prompt pay provisions currently in effect.
VII. TERMINATION
CLIENT may, with or without cause, terminate the Services at any time upon fourteen (14)
days written notice to ATS. The obligation to provide further Services under this Agreement
may be terminated by either party upon fourteen (14) days' written notice in the event of
substantial failure by the other party to perform in accordance with the terms hereof through no
fault of the terminating party, providing such defaulting party has not cured such failure, or, in
the event of a non-monetary default, commenced reasonable actions to cure such failure. In
either case, ATS will be paid for all expenses incurred and Services rendered to the date of the
termination in accordance with compensation terms of Article VI.
VIII. OWNERSHIP OF DOCUMENTS
(a) Sealed original drawings, specifications, final project specific calculations and other
instruments of service which ATS prepares and delivers to CLIENT pursuant to this
Agreement shall become the property of CLIENT when ATS has been compensated
for Services rendered. CLIENT shall have the right to use such instruments of service
solely for the purpose of the construction, operation and maintenance of the Facilities.
Any other use or reuse of original or altered files shall be at CLIENT's sole risk
without liability or legal exposure to ATS and CLIENT agrees to release, defend and
hold ATS harmless from and against all claims or suits asserted against ATS in the
event such documents are used for a purpose different than originally prepared even
though such claims or suits may be based on allegations of negligence by ATS.
Nothing contained in this paragraph shall be construed as limiting or depriving ATS of
its rights to use its basic knowledge and skills to design or carry out other projects or
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work for itself or others, whether or not such other projects or work are similar to the
work to be performed pursuant to this Agreement.
(b) Any files delivered in electronic medium may not work on systems and software
different than those with which they were originally produced and ATS makes no
warranty as to the compatibility of these files with any other system or software.
Because of the potential degradation of electronic medium over time, in the event of a
conflict between the sealed original drawings and the electronic files, the sealed
drawings will govern.
IX. MEANS AND METHODS
(a) ATS shall not have control or charge of and shall not be responsible for construction
means, methods, techniques, sequences or procedures, or for safety measures and
programs including enforcement of Federal and State safety requirements, in
connection with construction work performed by CLIENT's construction contractors.
Nor shall ATS be responsible for the supervision of CLIENT's construction
contractors, subcontractors or of any of their employees, agents and representatives
of such contractors; or for inspecting machinery, construction equipment and tools
used and employed by contractors and subcontractors on CLIENT's construction
projects and shall not have the right to stop or reject work without the thorough
evaluation and approval of the CLIENT. In no event shall ATS be liable for the acts or
omissions of CLIENT's construction contractors, subcontractors or any persons or
entities performing any of the construction work, or for the failure of any of them to
carry out construction work under contracts with CLIENT.
(b) In order that ATS may be fully protected against such third party claims, CLIENT
agrees to obtain and maintain for the benefit of ATS the same indemnities and
insurance benefits obtained for the protection of the CLIENT from any contractor or
subcontractor working on the project and shall obtain from that
contractor/subcontractor insurance certificates evidencing ATS as an additional
named insured.
X. INDEPENDENT CONTRACTOR
ATS shall be an independent contractor with respect to the Services to be performed
hereunder. Neither ATS nor its subcontractors, nor the employees of either, shall be deemed
to be the servants, employees, or agents of CLIENT.
XI. PRE-EXISTING CONDITIONS
Anything herein to the contrary notwithstanding, title to, ownership of, legal responsibility and
liability for any and all pre-existing contamination shall at all times remain with CLIENT. "Pre-
existing contamination" is any hazardous or toxic substance present at the site or sites
concerned which was not brought onto such site or sites by ATS. CLIENT agrees to release,
defend, indemnify and hold ATS harmless from and against any and all liability which may in
any manner arise in any way directly or indirectly caused by such pre-existing contamination
except if such liability arises from ATS's sole negligence or willful misconduct.
CLIENT shall, at CLIENT's sole expense and risk, arrange for handling, storage,
transportation, treatment and delivery for disposal of pre-existing contamination. CLIENT shall
be solely responsible for obtaining a disposal site for such material. CLIENT shall look to the
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disposal facility and/or transporter for any responsibility or liability arising from improper
disposal or transportation of such waste. ATS shall not have or exert any control over CLIENT
in CLIENT's obligations or responsibilities as a generator in the storage, transportation,
treatment or disposal of any pre-existing contamination. CLIENT shall complete and execute
any governmentally required forms relating to regulated activities including, but not limited to
generation, storage, handling, treatment, transportation, or disposal of pre-existing
contamination. In the event that ATS executes or completes any governmentally required
forms relating to regulated activities including but not limited to storage, generation, treatment,
transportation, handling or disposal of hazardous or toxic materials, ATS shall be and be
deemed to have acted as CLIENT's agent.
For ATS's Services requiring drilling, boring, excavation or soils sampling, CLIENT shall
approve selection of the contractors to perform such services, all site locations, and provide
ATS with all necessary information regarding the presence of underground hazards, utilities,
structures and conditions at the site.
XII. LIMITATION OF LIABILITY
CLIENT agrees that ATS's liability for the act, error or omission in its performance of services
under this Agreement shall in no event exceed the amount of the total compensation received
by ATS. It is intended by the parties to this Agreement that ATS's services in connection with
the project anticipated herein shall not subject ATS's individual employees, officers, or
directors to any personal legal exposure for the risks associated with this project.
X111. DISPUTE RESOLUTION
If a dispute arises out of, or relates to, the breach of this Agreement and if the dispute cannot
be settled through negotiation, then ATS and the CLIENT agree to submit the dispute to
mediation. In the event ATS or the CLIENT desires to mediate any dispute, that party shall
notify the other party in writing of the dispute desired to be mediated. If the parties are unable
to resolve their differences within 10 days of the receipt of such notice, such dispute shall be
submitted for mediation in accordance with the procedures and rules of the American
Arbitration Association (or any successor organization) then in effect. The deadline for
submitting the dispute to mediation can be changed if the parties mutually agree in writing to
extend the time between receipt of notice and submission to mediation. The expenses of the
mediator shall be shared 50 percent by ATS and 50 percent by the CLIENT. This requirement
to seek mediation shall be a condition required before filing an action at law or in equity.
However, prior to or during the negotiations or the mediation either party may initiate litigation
that would otherwise be barred by a statute of limitations, and ATS may pursue any property
liens or other rights it may have to obtain security for the payment of its invoices.
XIV. MISCELLANEOUS
(a) This Agreement constitutes the entire agreement between the parties hereto and
supersedes any oral or written representations, understandings, proposals, or
communications heretofore entered into by or on account of the parties and may not
be changed, modified, or amended except in writing signed by the parties hereto. In
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the event of any conflict between this contract document and any of the exhibits
hereto, the terms and provisions of this contract document shall control. In the event
of any conflict among the exhibits,the exhibit of the latest date shall control.
(b) This Agreement shall be governed by the laws of the State of Iowa.
(c) ATS may subcontract any portion of the Services to a subcontractor approved by
CLIENT. In no case shall CLIENT's approval of any subcontract relieve ATS of any of
its obligations under this Agreement.
(d) In no event shall either party be liable to the other for indirect or consequential
damages, including, but not limited to, loss of use, loss of profit or interruption of
business, whether arising in contract, tort (including negligence), statute, or strict
liability.
(e) In the event CLIENT uses a purchase order form to administer this Agreement, the
use of such form shall be for convenience purposes only, and any typed provision in
conflict with the terms of this Agreement and all preprinted terms and conditions
contained in or on such forms shall be deemed stricken and null and void.
(f) This Agreement gives no rights or benefits to anyone other than CLIENT and ATS and
does not create any third party beneficiaries to the Agreement.
IN WITNESS WHEREOF, the parties hereto have executed this agreement on the day and year written
below.
APPROVED FOR CITY OF WATERLOO APPROVED FOR AECOM
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By: By: i
Printed Name: Quentin Hart Printed Name: Douglas W. Schindel, P.E
Title: Mayor Title: Associate Vice President
Date: v1 Date: December 13, 2018
AECOM
HYDROLOGIC MODELING(2018)
CITY OF WATERLOO, IOWA
EXHIBIT A
A. PROJECT DESCRIPTION
In September and October of 2018, the City of Waterloo experienced some large and
intense rain events that caused flooding in certain areas of the City. Some of the areas of
the City that were most impacted were Service Area (SA) 19, particularly along 8th and 9th
Street corridor and in SA 18, including Olympic Drive and Byrnbrae areas. There have been
some infrastructure improvements to the sanitary sewer collection system completed in
other parts of the City which have reduced the historic surcharging issues to the collection
system in the areas the improvements were made. Some of these improvements included
removal of foundation drains to the collection system, manhole rehabilitation, sanitary sewer
lining and repairs, and upgrades for capacity to sewers and lift stations. The City would like
to model the potential impacts of applying some of these improvements to specific areas to
see the projected impacts for mitigating collection system surcharging and flooding issues.
B. SCOPE OF SERVICES
The Scope of Services will encompass and include detailed work, services, materials,
equipment, personnel and supplies necessary to provide hydrologic modeling defined in the
tasks below:
1. Evaluate and Review Effectiveness of Existing Foundation Drain Removal Program
Task 1 — Data Collection
• Characterization of Service Areas 15 and 16
a. Extent, number of houses.
b. Number of disconnected foundation drains.
C. Number of remaining foundation drains.
d. Review sump pump flow data (2016 through present) from houses
across Service Areas 15 and 16 that had their foundation drain
disconnected to estimate DWF base flow and WWF contribution,
taking into account the season and the Antecedent Moisture
Condition (AMC) (ideally, prolonged monitoring).
e. Review rainfall data during the foundation drain flow monitoring
periods, 2016 through present.
f. Comparison of model ADWF vs. estimated daily volume from
foundation drains.
g. Comparison of model predicted WWF volume for 6-hour design
storms vs. estimated volume from foundation drains.
h. Validation of assumptions.
AECOM
Task 2 - Hydraulic Modeling of Foundation Drain Disconnection
• Use methodology detailed in Memorandum - Footing Drain Removal
Program Modeling Assessment-Draft-12-01-17 to evaluate the
effectiveness of the foundation drain removal program in Service Areas 15
and 16.
Task 3 - Provide Technical Memorandum of Findings
2. Projected Benefits of Foundation Drain Removal in SA 18 in the Olympic Drive Area
and Byrnbrae Area
Task 4—Data Collection
• Gather information of existing collection system and lift station data.
Task 5—Hydrologic Modeling
• Model collection system performance and its effects by simulating system
without foundation drains contributing to the flow in the Olympic Drive Area
and Byrnbrae Area of SA 18. Use methodology developed in Number 1
above for modeling approach.
Task 6— Provide Technical Memorandum of Findings
3. Projected Benefits of Addressing the Smoke Testing Deficiencies in SA 18
Task 7— Data Collection
• Review data from the January 2016 AECOM report titled "Sanitary Sewer
System Smoke Testing Southeast of Highway 20 and Highway 63" to
prioritize deficiencies to be corrected.
Task 8—Hydrologic Modeling
• Use data from existing area-velocity (A-V) meters installed in Service Area
18, groundwater monitoring stations and rainfall data to verify DWF base
flow and WWF contribution in Service Area 18.
• Comparison of model predicted WWF volume for 6-hour design storms vs.
estimated volume of clear water flow eliminated by correcting deficiencies
identified by smoke testing.
• Use data from existing A-V meters installed in Service Area 18,
groundwater monitoring stations and rainfall data to verify reduction in 1/1 in
Service Area 18 following correction of deficiencies.
Task 9 - Provide Technical Memorandum of Findings
4. Projected Benefits of Conducting CIPP, Foundation Drain Removal and Potential
Infrastructure Improvement Programs in SA 19
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Task 10— Data Collection
• Review data from the Sanitary Sewer Condition Assessment, Capacity
Assessment and Master Plan reports to identify deficiencies previous
corrected and remaining to be corrected in Service Area 19.
Task 11 — Hydrologic Modeling
■ Model the effects to collection system performance of possible targeted
foundation drain removal within SA 19. Use methodology developed in
Number 1 above for modeling approach.
■ Model collection system performance with possible upgrade to
infrastructure (trunk sewer size increase).
■ Use data from existing A-V meters installed in Service Area 19,
groundwater monitoring stations and rainfall data to verify DWF base flow
and WWF contribution in Service Area 19.
■ Comparison of model predicted WWF volume for 6-hour design storms vs.
estimated volume of clear water flow eliminated by correcting deficiencies
identified by CCTV.
■ Use data from existing A-V meters installed in Service Area 19,
groundwater monitoring stations and rainfall data to verify reduction in 1/1 in
Service Area 19 following correction of deficiencies.
Task 12 - Provide Technical Memorandum of Findings
O:\Administration\ AGREE\PROF\Wat Hydraulic Modeling.doc