HomeMy WebLinkAboutReg 2019-11-04 Item 5D - Contract - 2020 Water and Sewer Comprehensive Plans with Carollo Engineers for $460,392COUNCIL AGENDA Syzs,ropsrs
Meeting Date
Prepared by
Ala or revien
Council review
11/04/19
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ITEM INFOR
ATION
ITEM No,
5.D.
STAN, SpoNsoR: PAT BRODIN
°RIC; INA", AGENDA DATE: 11/04/19
AGENDA ITEM Till,E Water
Consultant
& Sewer Funds - Comprehensive Plan
contract with Carollo Engineers
2020
Update
C.V11(IORY LJ Discussion
'liIg Date
Motion
Date 11/04/19
Li] Resolution
Alt,gDate
[1 Ordinance
Mfg Date
Award
El] Public Hearing
Mt g Date
I
• Bid
• Other
Mtg
Mtg Date
AltsDate
SPONSOR Council EMa3or R DCD U&znane 'ireEITS IIIP&R. IIJPoIeee DPWCourt
SPoNSoR'S Council is being asked to approve the consultant contract with Carollo Engineers for the
sumu\Ry 2020 update to the Water and Sewer Comprehensive Plans. Every six years the water and
sewer comprehensive plans need to be updated for the Washington State Deparment of
Health and the Department of Ecology. Carollo Engineers was selected from three
consulting firms. Council is being asked to approve the Carollo Engineers consultant
contract for $460,392.00.
RI',VIEWED BY
0 C.O.W.
Mtg 11111 CDN Comm
flArts Comm.
0 Finance
Comm.
Comm.
CHAIR:
Public Safety Comm.
ZAK
Trans &Infrastructure
Parks
Planning Comm.
DATE: 10/22/19
IDAN
COMMITTEE
RECOMMENDATIONS:
SPoNsoR/ADmiN.
CONINIIITEE
Public Works Department
Unanimous Approval; Forward to Consent Agenda
COST IMPACT / FUND SOURCE
EXPEINDI'l URE REQUIRED AMOUNT BUDGETED APPROPRIATION REQUIRED
$460,392.00 $560,000.00 $0.00
Fund Source: 401 WATER FUND & 402 SEWER FUND
Comments: Pages 64 & 80, 2019 CIP
MTG. DATE
RECORD OF COUNCIL ACTION
11/04/19
MTG. DATE
ATTACHMENTS
11/04/19
In or ational Memorandum dated 10 19
Pages 64 & 80, 2019 CIP
Consultant Selection Scoring Sheet
Carollo Engineers' Consultant Agreement with scope of work and fees
Minutes from the Transportation & Infrastructure Committee meeting of 10/22/19
23
24
Allan Ekberg, Mayor
Public Works Department - Henry Hash, Director
INFOR ATIONAL E ORANDU
TO: Transportation and Infrastructure Committee
FROM: Henry Hash, Public Works Director
BY: Pat Brodin, Development Manager
CC: Mayor Allan Ekberg
DATE: October 18, 2019
SUBJECT: Water and Sewer Comprehensive Plans
Project Nos. 91940101, 91940201
Consultant Contract with Carollo Engineers for 2020 Update
ISSUE
Approve a consultant contract with Carollo Engineers to update the Comprehensive Plans for the Water and Sewer Utilities.
BACKGROUND
Washington State Department of Health requires an update to the City's Water Supply Plan every six years to ensure that the
water utility is active, and the operating permit remains in the green status, or compliant. Likewise, the Department of Ecology
approves the Comprehensive Sewer Plan every six years. In the last update in 2015, the City contracted with Carollo
Engineers for the Water and Sewer Comprehensive Plans. The new updates to the Water and Sewer Comprehensive Plans
must be completed and approved by the end of 2020.
DISCUSSION
The current MRSC Consultant Roster was reviewed and three firms were short-listed to complete the updates to the Water
and Sewer Comprehensive Plans. The firms were Carollo Engineers, HDR Engineers, and Pace Engineers. The Summary of
Qualifications tables were evaluated from each firm and Carollo was the unanimous choice based on their regional experience
and sound knowledge regarding Tukwila's water and sewer infrastructure. Key water topics included in the update will be
demographic and demand projections, incorporating remaining useful life, updating and calibrating the water model, provide
updated fire flow results, and water quality regulatory requirements. Water storage is an issue that will need to be addressed.
Key sewer topics include sewer flow projections, flow monitoring at critical sewer locations, create a sewer model of the
commercial business district to aid with capital projects and evaluate the commercial district conveyance system, sewer lift
station improvements, update the repair and replacement program, summarize reclaimed water use, and update any
regulatory requirements.
FINANCIAL IMPACT
The consultant contract with Carollo Engineers will split between the Water and Sewer Utilities: The Sewer Contract in
this update will be higher than expected because of the Department of Ecology reset and new model.
Utility Carollo Contract Budget
Water Comp Plan $ 182,441.00 $ 280,000.00
Sewer Comp Plan 277,951.00 280,000.00
Total $ 460,392.00 $ 560.000.00
RECOMMENDATION
Council is being asked to approve the consultant contract with Carollo Engineers for the update to the Comprehensive
Water and Sewer Plans for $460,392.00 and consider this item on the Consent Agenda at the November 4, 2019
Regular Meeting.
Attachments: Pages 64 & 80, 2019 CIP
Scoring Sheet
Consultant Agreement w/Scopes
W:\PW Eng PROJECTS1A- WT Projects1Water Comprehensive Plan - Water (91040101)1In0o Memo Water Sewer Comp Plan 2019 102519.docx
25
26
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2019 to 2024
PROJECT: Water Comprehensive Plan Project No. 91040101
DESCRIPTION: Prepare the new Water Comprehensive Plan incorporating any regulatory or new Growth Management
Act Comprehensive Plan issues related to running the water utility.
JUSTIFICATION: Plan needs to be consistent with City's Comprehensive Plan and the Department of Health requires
the plan to be updated every 6 years.
STATUS: Current Water update was adopted in 2015. The next update is scheduled for 2021.
MAINT. IMPACT:
COMMENT:
FINANCIAL Through Estimated
in 000s
2017 2018 2019
2020
2021
2022
2023
2024
BEYOND TOTAL
EXPENSES
Design
234
140
140
514
Land (RAN)
0
Const. Mgmt.
0
Construction
0
TOTAL EXPENSES
234
0
140
140
0
0
0
0
0
514
FUND SOURCES
Awarded Grant
0
Proposed Grant
0
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
234
0
140
140
0
0
0
0
0
514
TOTAL SOURCES
234
0
140
140
0
0
0
0
0
514
2019 - 2024 Capita! Improvement Program
64
27
CITY OF TUKWILA CAPITAL PROJECT SUMMARY
2019 to 2024
PROJECT: Sewer Comprehensive Plan Project No. 91040202
DESCRIPTION: Prepare new Sewer Comprehensive Plan incorporating any new or regulatory Growth Management
Act Comprehensive Plan issues related to sewer.
JUSTIFICATION: Sewer Comprehensive Plan needs to be consistent with City Comprehensive Plan, Department of
Ecology and Department of Health. Update is required every 6 years.
STATUS: 2013 Sewer update was adopted by Council on 6/2/14. Next update is scheduled for 2021.
MAINT. IMPACT:
COMMENT:
FINANCIAL Through Estimated
in $000's
2017 2018 2019
2020 2021 2022 2023 2024 BEYOND TOTAL
EXPENSES
Design
158
140
140
438
Land (RNV)
0
Const. Mgmt.
0
Construction
0
TOTAL EXPENSES
158
0
140
140
0
0
0
0
0
438
FUND SOURCES
Awarded Grant
0
Proposed Grant
0
Mitigation Actual
0
Mitigation Expected
0
Utility Revenue
158
0
140
140
0
0
0
0
0
438
TOTAL SOURCES
158
0
140
140
0
0
0
0
0
438
Project Location:
Entire System
2019 - 2024 Capital Improvement Program
28
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City of Tukwila
6200 Southcenter Boulevard, Tukwila WA 98188
Contract Number:
PROFESSIONAL SERVICES AGREEMENT
(Includes consultants, architects, engineers, accountants, and other professional services)
THIS AGREEMENT is entered into between the City of Tukwila, Washington, hereinafter
referred to as "the City", and Carollo Engineers, hereinafter referred to as "the Consultant", in
consideration of the mutual benefits, terms, and conditions hereinafter specified.
1. Project Designation. The Consultant is retained by the City to perform Engineering Plan
services in connection with the project titled Water and Sewer Comprehensive Plan Update.
2. Scope of Services. The Consultant agrees to perform the services, identified on Exhibit "A"
attached hereto, including the provision of all labor, materials, equipment and supplies.
3. Duration of Agreement; Time for Performance. This Agreement shall be in full force and
effect for a period commencing upon execution and ending December 31, 2020, unless
sooner terminated under the provisions hereinafter specified. Work under this Agreement
shall commence upon written notice by the City to the Consultant to proceed. The
Consultant shall perform all services and provide all work product required pursuant to this
Agreement no later than December 31, 2020 unless an extension of such time is granted in
writing by the City.
4. Payment. The Consultant shall be paid by the City for completed work and for services
rendered under this Agreement as follows:
A. Payment for the work provided by the Consultant shall be made as provided on Exhibit
"B" attached hereto, provided that the total amount of payment to the Consultant shall
not exceed $560,000.00 without express written modification of the Agreement signed
by the City.
B. The Consultant may submit vouchers to the City once per month during the progress of
the work for partial payment for that portion of the project completed to date. Such
vouchers will be checked by the City and, upon approval thereof, payment shall be
made to the Consultant in the amount approved.
C. Final payment of any balance due the Consultant of the total contract price earned will
be made promptly upon its ascertainment and verification by the City after the
completion of the work under this Agreement and its acceptance by the City.
D. Payment as provided in this section shall be full compensation for work performed,
services rendered, and for all materials, supplies, equipment and incidentals necessary
to complete the work.
E. The Consultant's records and accounts pertaining to this Agreement are to be kept
available for inspection by representatives of the City and the state of Washington for a
period of three (3) years after final payments. Copies shall be made available upon
request.
31
5. Ownership and Use of Documents. All documents, drawings, specifications and other
materials produced by the Consultant in connection with the services rendered under this
Agreement shall be the property of the City whether the project for which they are made is
executed or not. The Consultant shall be permitted to retain copies, including reproducible
copies, of drawings and specifications for information, reference and use in connection with
the Consultant's endeavors. The Consultant shall not be responsible for any use of the said
documents, drawings, specifications or other materials by the City on any project other than
the project specified in this Agreement.
6. Compliance with Laws. The Consultant shall, in performing the services contemplated by
this Agreement, faithfully observe and comply with all federal, state, and local laws,
ordinances and regulations, applicable to the services rendered under this Agreement.
7. Indemnification. The Consultant shall defend, indemnify and hold the City, its officers,
officials, employees and volunteers harmless from any and all claims, injuries, damages,
losses or suits including attorney fees, arising out of or resulting from the acts, errors or
omissions of the Consultant in performance of this Agreement, except for injuries and
damages caused by the sole negligence of the City.
Should a court of competent jurisdiction determine that this Agreement is subject to RCW
4.24.115, then, in the event of liability for damages arising out of bodily injury to persons or
damages to property caused by or resulting from the concurrent negligence of the Consultant
and the City, its officers, officials, employees, and volunteers, the Consultant's liability
hereunder shall be only to the extent of the Consultant's negligence. It is further specifically
and expressly understood that the indemnification provided herein constitutes the
Consultant's waiver of immunity under Industrial Insurance, Title 51 RCW, solely for the
purposes of this indemnification. This waiver has been mutually negotiated by the parties.
The provisions of this section shall survive the expiration or termination of this Agreement.
8. Insurance. The Consultant shall procure and maintain for the duration of the Agreement,
insurance against claims for injuries to persons or damage to property which may arise from
or in connection with the performance of the work hereunder by the Consultant, its agents,
representatives, or employees. Consultant's maintenance of insurance as required by the
agreement shall not be construed to limit the liability of the Consultant to the coverage
provided by such insurance, or otherwise limit the City's recourse to any remedy available at
law or in equity.
A. Minimum Amounts and Scope of Insurance. Consultant shall obtain insurance of the
types and with the limits described below:
1. Automobile Liability insurance with a minimum combined single limit for bodily
injury and property damage of $1,000,000 per accident. Automobile Liability
insurance shall cover all owned, non -owned, hired and leased vehicles.
Coverage shall be written on Insurance Services Office (ISO) form CA 00 01 or a
substitute form providing equivalent liability coverage. If necessary, the policy
shall be endorsed to provide contractual liability coverage.
2. Commercial General Liability insurance with limits no less than $1,000,000 each
occurrence, $2,000,000 general aggregate. Commercial General Liability
insurance shall be at least as broad as ISO occurrence form CG 00 01 and shall
cover liability arising from premises, operations, stop -gap independent contractors
and personal injury and advertising injury. The City shall be named as an
additional insured under the Consultant's Commercial General Liability insurance
policy with respect to the work performed for the City using an additional insured
endorsement at least as broad as ISO CG 20 26.
3. Workers' Compensation coverage as required by the Industrial Insurance laws of
the State of Washington.
CA revised December 2016
32
Page 2
4. Professional Liability with limits no less than $1,000,000 per claim and $1,000,000
policy aggregate limit. Professional Liability insurance shall be appropriate to the
Consultant's profession.
B. Other Insurance Provision. The Consultant's Automobile Liability and Commercial
General Liability insurance policies are to contain, or be endorsed to contain that they
shall be primary insurance with respect to the City. Any Insurance, self-insurance, or
insurance pool coverage maintained by the City shall be excess of the Consultant's
insurance and shall not be contributed or combined with it.
C. Acceptability of Insurers. Insurance is to be placed with insurers with a current A.M.
Best rating of not less than A:VI'.
D. Verification of Coverage. Consultant shall furnish the City with original certificates and
a copy of the amendatory endorsements, including but not necessarily limited to the
additional insured endorsement, evidencing the insurance requirements of the Contractor
before commencement of the work. Upon request by the City, the Consultant shall
furnish certified copies of all required insurance policies, including endorsements,
required in this Agreement and evidence of all subcontractors' coverage.
E. Notice of Cancellation. The Consultant shall provide the City with written notice of any
policy cancellation, within two business days of their receipt of such notice.
F. Failure to Maintain Insurance. Failure on the part of the Consultant to maintain the
insurance as required shall constitute a material breach of contract, upon which the City
may, after giving five business days notice to the Consultant to correct the breach,
immediately terminate the contract or, at its discretion, procure or renew such insurance
and pay any and all premiums in connection therewith, with any sums so expended to be
repaid to the City on demand, or at the sole discretion of the City, offset against funds
due the Consultant from the City.
9. Independent Contractor. The Consultant and the City agree that the Consultant is an
independent contractor with respect to the services provided pursuant to this Agreement.
Nothing in this Agreement shall be considered to create the relationship of employer and
employee between the parties hereto. Neither the Consultant nor any employee of the
Consultant shall be entitled to any benefits accorded City employees by virtue of the services
provided under this Agreement. The City shall not be responsible for withholding or
otherwise deducting federal income tax or social security or for contributing to the state
industrial insurance program, otherwise assuming the duties of an employer with respect to
the Consultant, or any employee of the Consultant.
10. Covenant Against Contingent Fees. The Consultant warrants that he has not employed or
retained any company or person, other than a bonafide employee working solely for the
Consultant, to solicit or secure this contract, and that he has not paid or agreed to pay any
company or person, other than a bonafide employee working solely for the Consultant, any
fee, commission, percentage, brokerage fee, gifts, or any other consideration contingent
upon or resulting from the award or making of this contract. For breach or violation of this
warrant, the City shall have the right to annul this contract without liability, or in its discretion
to deduct from the contract price or consideration, or otherwise recover, the full amount of
such fee, commission, percentage, brokerage fee, gift, or contingent fee.
11. Discrimination Prohibited. Contractor, with regard to the work performed by it under this
Agreement, will not discriminate on the grounds of race, religion, creed, color, national origin,
age, veteran status, sex, sexual orientation, gender identity, marital status, political affiliation,
the presence of any disability, or any other protected class status under state or federal law,
in the selection and retention of employees or procurement of materials or supplies.
12. Assignment. The Consultant shall not sublet or assign any of the services covered by this
Agreement without the express written consent of the City.
CA revised December 2016
Page 3
33
13. Non -Waiver. Waiver by the City of any provision of this Agreement or any time limitation
provided for in this Agreement shall not constitute a waiver of any other provision.
14. Termination.
A. The City reserves the right to terminate this Agreement at any time by giving ten (10)
days written notice to the Consultant.
B. In the event of the death of a member, partner or officer of the Consultant, or any of its
supervisory personnel assigned to the project, the surviving members of the Consultant
hereby agree to complete the work under the terms of this Agreement, if requested to do
so by the City. This section shall not be a bar to renegotiations of this Agreement
between surviving members of the Consultant and the City, if the City so chooses.
15. Applicable Law; Venue; Attorney's Fees. This Agreement shall be subject to, and the
Consultant shall at all times comply with, all applicable federal, state and local laws,
regulations, and rules, including the provisions of the City of Tukwila Municipal Code and
ordinances of the City of Tukwila. In the event any suit, arbitration, or other proceeding is
instituted to enforce any term of this Agreement, the parties specifically understand and
agree that venue shall be properly laid in King County, Washington. The prevailing party in
any such action shall be entitled to its attorney's fees and costs of suit. Venue for any action
arising from or related to this Agreement shall be exclusively in King County Superior Court.
16. Severability and Survival. If any term, condition or provision of this Agreement is declared
void or unenforceable or limited in its application or effect, such event shall not affect any
other provisions hereof and all other provisions shall remain fully enforceable. The
provisions of this Agreement, which by their sense and context are reasonably intended to
survive the completion, expiration or cancellation of this Agreement, shall survive termination
of this Agreement.
17. Notices. Notices to the City of Tukwila shall be sent to the following address:
City Clerk
City of Tukwila
6200 Southcenter Boulevard
Tukwila, WA 98188
Notices to Consultant shall be sent to the following address:
Carollo Engineers
1218 3rd Ave., Suite 1600
Seattle, WA 98101
18. Entire Agreement; Modification. This Agreement, together with attachments or addenda,
represents the entire and integrated Agreement between the City and the Consultant and
supersedes all prior negotiations, representations, or agreements written or oral. No
amendment or modification of this Agreement shall be of any force or effect unless it is in
writing and signed by the parties.
CA revised December 2016
34
Page 4
DATED this
day of , 2019.
CITY OF TUKWILA CONSULTANT
Allan Ekberg, Mayor
Attest/Authenticated:
By:
Printed Name:
Title:
Approved as to Form:
City Clerk, Christy O'Flaherty Office of the City Attorney
CA revised December 2016
Page 5
35
36
EXH|8ITA
C|TfOFTWKW9LA
DRAFT SCOPE /0FSERVICES
COMPREHENSIVE WATER SYSTEM PLAN
The following Scope ofServices has been developed to assist the City ofTukwila (City) with the Z02Oupdate Of its
Water System Plan (Plan). The objective of this project is to update and review all elements of the Plan
documents, in accordance with WAC 246-290-100 and State of Washington Department of Health (DOH)
regulations. The following tasks underthi5 Scope of Services has been prepared based on Carollo's (Consultant)
and its subconsu|tant'scurrent understanding ofthe proposed project, andondiscussionsvvith[|tystaff.
PROJECT BACKGROUND
The City initiated this Plan update recognizingthe importance ofplanning, developing, and financing water
System facilities as a means to provide reliable and efficient service for existing customers and to serve
anticipated growth. The Plan is designed to meet state, county, and local requirements. The City's last Water
System Plan was completed in 2015. This Plan will be consistent with the City's current update of the City's
Comprehensive Plan, creating a cohesive and complementary set of documents.
PROJECT ASSUMPTIONS
l. Cand|pEngineers, Inc. and its subconsuhantswill bereferred toas"[onsultam"inthbdocnmen.
I The City nfTukwila and its staff will bereferred toas"City"inthis document.
I All meetings will beheld atCity offices.
4. Draft Chapters will be provided in electronic copy (PDF and/or Microsoft Word) transmitted via email or
secure file transfer.
S. City comments nndraft chapters will bedocumented |nthe Project Comment Response Log bvthe
Consultant. The Consultant will prepare responses to address the comments in the Comment Re5ponse
Log for the City's review and acceptance. Resulting changes will be incorporated in the Draft Agency
Review Plan, rather than reissuing a draft chapter at the time. However, revised draft chapters can be
produced upon City required.
6. Electronic Demand Tool will beprovided in x|sxformat.
7. The Consultant will prepare an agenda, presentation materials, and document discussions, including
action items and decisions, in meeting minutes for Consultant -led meetings.
8. Meeting notes and related materials will be transmitted electronically in MS Word and PDF formats via
email.
9. The City will print and produce additional copies of all documents as necessary for its use.
lO. The City will provide available information related to the project and as requested by the Consultant in a
timely manner. The City shall furnish Consultant available studies, reports, and other data pertinent to
Consultant's services; obtain, or authorize Consultant to obtain, or provide additional reports and data as
required; furnish to Consultant services of others required for the performance of Con5UItant'5 services
hereunder, and Consultant shall be entitles to use and rely upon all such information and services
provided by the City or others in performing Consultant's services under this Agreement.
Page 1 of 16
37
Executive Summary
Consultant
Chapter 1: Introduction
Consultant
Chapter 2: Existing System
Consultant
Chapter 3: Policies &Criteria
Consultant
Chapter 4: Water Requirements
Consultant
Chapter S: System Analysis
Consultant
Chapter 6: Water Use Efficiency
Consultant
Chapter 7: Water Quality
Consultant
Chapter 8: Operations and Maintenance
Consultant
Chapter 9: Capital Improvement Plan
Consultant
Chapter 10: Financial Plan
City
Appendix A: Notice of Determination of Non -Significance (DNS) City
Appendix B: State Environmental Policy Act (SEPA) Checklist city
Appendix[:
Loca I Government Consistency Determination Form City
Appendix D: Agency Comment Letters and Responses City
AppendixE: Ordinances and Approvals City
Appendix F: Water System Plan Submittal Form Consultant
Appendk/G: DOH Water System Plan Checklist Consultant
Appendix H:
Interlocal Agreements City
Appendix |:
Water Facilities Inventory Form City
Appendix J:
Water Rights Self -Assessment Fumns Consultant
Appendix k:
Demographic and Demand Forecast Tables Consultant
AppendixL TMl:Hydraulic Model Update and Calibration Consultant
Appendix M: Water Quality Sampling Procedures and Program City
Appendix N: Revised Coliform Monitoring Plan city
Appendix 0: Emergency Response Plan City
AppendixP: Water Shortage Response Plan and Service Reliability City
Appendix Q: Cross -Connection Control Program City
Appendix R:
Standard Construction Specifications for Distribution Mains City
Appendix S: CIP Cost Estimates Consultant
Page 2 of 16
38
TASKS
To meet the objectives of this Scope of Services, the Consultant shall complete the tasks as summarized in the
table below and discussed in detail in the text that follows.
Project Management
Introduction
Existing System
Task 400 Demographic Analysis and Demand Projections
Task 500 System Analysis
Task 600 Water Use Efficiency
Task 700 Water Quality
Task 800 Operations and Maintenance
Task 900 Capital Improvement Plan
Task 1000 Financial Analysis
Task 1100 Plan Integration
TASK 100 — PROJECT MANAGEMENT
The purpose of this task is to direct all activities within the Plan as assigned by the City and maintain the project
within the contracted scope, schedule, and budget. This includes project administration, monthly invoicing, client
and team coordination and quality assurance/quality control review necessary to successfully complete the
assigned chapter of the Plan to the City's expectations, Additionally, the Consultant will develop a Project
Management Plan (PMP) and lead the initial team kick-off meeting. This task includes the following activities:
TASK 100 ACTIVITIES
101. Monthly Progress Reports and Invoices. This subtask includes production and implementation of the project
plan, schedule, and budget. Assist the project team members in the implementation of the task items, reviewing
the work -in -progress reports. Prepare and submit monthly activity reports showing current project status and
identifying key issues or elements of the project that will need to be addressed in the proceeding weeks. An
electronic version of the monthly progress reports will be sent to the City for review and approval. This task
assumes that nohard copy ofthe monthly progress reports will bedistributed.
102. Project Management Plan. Prepare a Project Management Plan (PMP) that describes deliverables, Plan
outline, anticipated meetings, project roles and responsibilities, lists contact information for the project team,
describes communications protocols, quality management, and includes the scope of services, schedule, and
budget. Quality Management includes, but is not limited to, the following elements:
* Project Manager overview of all primary documents to verify technical consistency and compliance with
contract requirements.
n Organization of the work into logical deliverables with qualified staff for each task assigned to the work.
• Resolution of all review comments with a memorandum summarizing key comments and the manner in
which each was addressed inthe work.
Anelectronic version ofthe Project Management Plan will besent tothe City for review and approval. This task
Page 3 of 16
39
1O3.Meeting No. l— Meeting. Faci I itate a kick-off meeting to review project management and initia I data
requests.
l04.Client Coordination.
• Manage the consultant project team totrack time and budget, work elements accomplished, work items
planned for the next period, manpower, scope changes, time and budget needed tocomplete the project.
w Create and maintain a working projecschedule based onthe schedule inthe PKxP.
* Review project status, including scope, budget, and schedule.
Task 20OAsomootions
• The PM P wi 11 be updated with full incorporation of review comments after the City review of the draft
PMP.
* The total length ofthe project isI8months.
° City provides required documents for appendices.
Tas6l00 City Deliverables
l. Team member contactinformation.
2. PIMP review for completeness.
3. Receive, review, and process Consultant invoices inatimely manner.
4. Respond todata requests inatimely manner.
Task l00Consultant Deliverables
l. Draft request list.
Z. Draft Plan outline.
l DratP[NP.
4. FinaPMP
5. Eighteen monthly progress reports and invoices.
Task lQ0Meetings
0 Meeting No. l—Kick off Meeting.
TASK 200—INTRODUCTION
The objective of this task is to create the City's introduction to the Plan. This task will develop Chapter 1—
Introduction of the Plan and willdevelop[hapter3—PoUdesandChteha.ThechapterswN|bedewelopedbased
onthe information contained in2O1SPlan Chapter I. Anew Chapter 3—Policies and Criteria iscreated tofacilitate
review and implementation of newly proposed policies and criteria. The task includes the following activities:
TASK 200 ACTIVITIES
201. Meeting No. 2-2OI5 Chapterl Review. Facilitate ameeting toreview and identify updates needed tolOI5
Plan Chapter 1 — Introduction. This may include: related comprehensive water plans from the neighboring
jurisdictions and other related plans, recent history of the City's water system; and policies and criteria. A data
request will beprepared based nnthe meeting.
202. Data Acquisition. Prepare a data request for the required information. The request may include, but is not
limited to, the following:
p Related comprehensive yvaterplans from the neighboring jurisdictions and other related plans.
w Agreements with neighboring jurisdictions.
* Neigh boring/adja cent j urisd icti on5 map, in Geographic Information System (GIS) format with current
boundaries.
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40
w G IS data for the sewer system including City Limits, current water service area, urban growth area (UGA),
andintertiss.
° Policies and criteria related to service area and conditions of service, in MS Word. It is assumed the City
will provide language for all requested changes topolicies and criteria.
• Emergency Management goals, including redundancy and reliability standards related to system
components, in MS Word.
w Duty toServe.
p City and County land use plans and zoning.
* Satellite management program.
° Annexation policy.
* SEPAand Notice ofDetermination ofNon-Significance (DNS).
• Local Government Consistence Determination Form.
203.Rewse Chapterl.preparearevised[hapter1—|ntnoductionbasedoncu[rentinformation. Itisanticipated
that any revisions will be minor. An electronic version of the draft Chapter will be sent to the City for review. City
comments will be recorded in the Record of Comment and will be incorporated into the Chapter as part of the City
Review Draft Plan.
204, Create Now Chapter3.Prepareare/ised[hapter3—Pu|idesand[ritehabasedonCityinputonPnhdesand
Criteria. As part of the preparation, the Consultant will review policies and criteria and confirm they fulfill DOH
Water System Plan requirements. It is anticipated that any revisions will be minor. An electronic versionofthe
draft Chapter will be sent to the City for review. City comments will be recorded in the Record of Comment and
will beincorporated into the Chapter aspart ofthe City Review Draft Plan.
Task 20OAssomptions
* City can provide elements listed under Task Z02,
* It is anticipated that the City will lead the environmental and agency Plan review and approval process.
The City will provide all associated documentation tothe Consultant.
• This task will involve updating the chapter from the 20l5Plan.
° Nohard copy ofthe chapter will bedistributed.
Task 200Oty Deliverables
l. Requested Data from Task ZQL
Z. Agency Comment Letters and Responses.
3. Adopting ordinances and approvals.
4. Water System Plan Submittal Form.
S. Comments ondraft Chapter l—Introduction.
6. Comments nndraft Chapter 3—Policies and Criteria.
Task 20OConsultant Deliverables:
l. Meeting No. 2 — 2015 Chapter 1 Review Meeting Agenda, Materials, and Minutes.
2. Draft Chapter I —Introduction.
3. ROC for Chapterl—|ntrodoction,
4. Draft Chapter ]— Policies and Criteria.
5. ROC for Chapter 3—Introduction.
6. DOH Vter System Plan Checklist
.
Task 200 Meetings
° Meeting No. Z-20lSChapter IReview.
TASK 300— EXISTING SYSTEM
DRAFT - 10/14/2019
Page 5 of 16
41
Highline water district intertie
Water district 75 intertie
Water district #75 intertie
The objective ofthis task istodocument the Oty'sexisting water system (eg,supply, storage, booster pump
stations, interties, and distribution), The task will develop 2020 Chapter 2 —Existing Water System, which will be
based onrevisions tothe 2OI5 Chapter 4—Existing System. The change inchapter numbering |sintended to
better align with DOH's Water System Outline and assist in regulatory review, This task includes the following
TASK 300, ACTIVITIES
3O1.Meeting No. J-Existing System Review. Facilitate a meeting to review and identify updates needed to 2015
Chapter 4—Existing System. Adata request will beprepared basadonthemeeting.
302. Data Acquisition. Prepare a data request for the required information. The request may include, but is not
limited to, thofb||ovNn
, g:
* GL5data for existing facilities, service areas, and inventory.
* Data onpipeline materials and age bylinear foot, asavailable.
° Existing renew and replacement program.
• Summary ofimprovements completed since the 2UISPlan.
w Data on existing infrastructure (e.g. supply, storage, booster pump stations, interties, and distribution).
• Water Facilities Inventory Form.
w |ntedoca|Agreements.
]O3.Revise 2O2D System.Preparearevised[hapterI—ExistngSysteynwithupdated
information. It is anticipated that any revisions will be minor. An electronic version of the draft Chapter will be
sent tothe City for review. City comments will be recorded in the Record of Comment and will be incorporated
into the Chapter aspart ofthe City Review Draft Plan.
Task 300Assumptibns
• City can provide elements listed under Task 3O2,
w This task will involve updating the chapter from the 2OlSPlan.
• No hard copy of the chapter will be distributed.
Task 3O0City Deliverables
I. Requested Data from Task 302.
2. |nter|oca|Agreements.
I Water Facilities Inventory Form.
4. Comments onDraft Chapter 2—Existing System.
Task 30UConsultant Deliverables
l. Drat[haptarZ—ExisdngSysteyn.
2. ROC for Chapter 2—Existing System.
I Meeting No. 3 — Existing System Review Meeting Agenda, Materials, and Minutes.
Task 300 Meetinos
0 Meeting No. 3 — Existing System Chapter Review.
TASK 400—DEMOGRAPHIC ANALYSIS AND DEMAND PROJECTIONS
The purpose ofthis task $to perform ademographic analysis and demand projections for the City'sService Area;
lU-yearand ZU-yearplanning horizons will beevaluated using the best available information. This task will
develop the 2020 Chapter 4 — Demographic Analysis and Demand Projections, which will include completely
revised projections consistent with the Puget Sound Regional Council (PSRQ]O4OVision and the most recent
Page 6 of 16
42
water use information. Note, ithas been moved from the 20lSChapter ZtoZO20Chapter 4tobetter align with
DOH's Water System Plan outline and facilitate regulatory review. This task includes the following activities:
TASK 40DACTIVITIES
401. Data Request. Develop and submit a request for data required for Chapter 4. The following data are
anticipated to be required:
a. Demographic growth rates consistent with Regional Planning under PSRC 2040 Vision. Population,
household, and employment projections (if available) bvTransportation Ana|ydsZnnes(TAZ)are
b. Historical connection and water use information by customer class from 2010 through the present.
Monthly or Bimonthly water use is preferred.
c Historical supply purchases from 2OI0through the present, including maximum day supply (if available).
Monthly orBimonthly purchases ispreferred.
d. Historical supply purchases for the maximum week in 2015, 2018, or 2019 to generate a diurnal water use
curve for the system.
e. Historical water use from up to ten (10) large customers. If large users have more than one meter, then
water use bymeter ispreferred.
f. Accounted -for Non -Revenue water from ZOIOthrough the present.
g. GIS data: land use and zoning data, vacant and re -developable land, TAZ boundaries.
402. Demographics Analysis. Analyze demographic growth in customers. Use data from PSR[and the City to
calculate rates of growth for each TAZand each pressure zone. High, low, and average number ofaccounts will be
prepared for the 10-year and 20-year planning horizons by pressure zone, if sufficient data is available.
403.Demund Projections.Demand projections will befor the lU^yearand ZV-yeac
a. Develop the historical average day demands (ADD) and maximum day demands (MDD), the accounted -
for revenue water uses, estimated water loss and leakage planning values, and establish equivalent
residential unit (ERU)values for the different customer classes.
b. Project the future ADD and MDD water demand for each pressure zone based on the demographic
analysis and historical ERU demand. Estimates of low, moderate, and high scenario future water demand
will be determined. The scenarios will be based on the variations in key demand parameters, such as ERU
value or the MDD/ADD peaking factor. Up to ten (10) of the City's largest connections may be projected
separately and added to other projected system demands. Peak hour demand (PHD) will be calculated
using a diurnal water use curve from a maximum water use week in recent years.
404 Meeting No. 4—Demographic Analysis and Demand Projections. Present the methods and results ofthe
demographic analysis and demand projections for the City'sreview and approval. The VVUEprogram will also be
discussed. Prepare anagenda, presentation materials, and document discussions, including action items and
decisions, inmeeting minutes.
405. Demand model. Provide excel database with projected ERUs and resulting demand for City's use in future
406.[reate Draft Chopter4—Demographic Analysis and Demand Projections. Prepare draft Chapter 4for [ity's
review and approval. City comments and Consultant responses will be tracked in the Comment Response Log.
Comments onthis chapter will beincorporated into the final Plan.
Task 400Assomptioms
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43
° The Service Area andpressurezoneswiUbede|ineatedphortodeveopmentofthewaterrequinement .
• This task will require a complete update of the Chapter with all new information.
Task 400 City Deliverables
1. Requested Data.
l Comments onChapter 4—Demographic Analysis and Demand Projections.
Task 4QOConsultant Deliverables
l. Meeting No. 4 — Demographic Analysis and Demand Projections Meeting Agenda, Materials, and
Minutes.
3. Draft Chapter 4—Demographic Analysis and Demand Projections.
3. ROC for Chapter 4—Demographic Analysis and Demand Projections.
4. Demographic and Demand Forecast Tables.
Task 400 Meetings
° Meeting No. 4—Demographic Analysis and Demand Projections.
TASK 5Q0—SYSTEM ANALYSIS
The purpose ofthis task istoevaluate the future water system toidentify potenba|de0dendesandpmposed
improvements, including supply, storage, booster pump stations, and distribution. The hydraulic model piping will
beupdated and calibrated based onresults nfhydrant tests performedbvtheOty.|mprovementsidentifiedio
other tasks will be incorporated into the model, as appropriate, to determine the effect of comprehensive
improvements. This task will develop 2020 Chapter 5 — System Analysis. It includes information contained in 2015
Chapters 3 — Supply Analysis, 2015 Chapter 5 — Hydraulic Model Update, and Chapter 6 — Distribution System
Analysis. This task includes the following activities:
TASK 500 ACTIVITIES
501. Data Request. Develop and submit a request for data required by Chapter 5. The following data are
anticipated toberequired:
a. Cascade Water future supply planning.
b. King County Reclaimed Water planning.
c. Existing well pump tests, capacity evaluations and/or aquifer characterizations.
d. Potential location for future storage facilities.
502.Updote Hydraulic Profile. Prepare anupdated hydraulic profile figure.
503. WaterRight Se0f-Assessment. Complete DOH Water Right Self -Assessment (Tables 1 through 3).
504^Desktop Analysis — Water Supply Analysis. Summarize the City and Cascade VVater'slong-term supply
planning. Summarize City's existing water right (Foster Links Golf Course). Additionally, summarize potential use
ofreclaimed water.
SOS — Storage Analysis. Identify the storage volume required for each pressure zone based on
the established storage criteria for equalizing, fire flow, operational, and standby volumes. The storage analysis
will beperformed for the l0'yearand ZO'yearprojected demands.
506. Desktop Analysis — Pump Station Analysis. Identify the pumping capacity requirements per the evaluation
criteria. Compare requirements to current pump station capacity to identify any deficiencies for the 10-year and
20-year projected demand scenarios. Required upgrades, modifications, or operational changes will be
recommended, a*necessary.
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44
507 Desktop Analysis —Limiting Factor Analysis. Conduct the I imitingfactor analysis using DO H WSDM 6-1.
Calculate the water system service connections correlated to ERUs and the physical system capacity as ERUs. The
Limiting Factor Analysis Will use information summarized in previous chapters, where applicable. The Limiting
Factor Analysis will beconducted for the sought approval period.
508. Meeting No. 5 — Desktop Analysis Workshop. Facilitate a meeting to present the water right, supply, storage,
and pump station analysis results for the City's review and approval. As part of this meeting, the City will select
preferred options for future storage options.
SO9.Update Hydraulic Model/Co0b/otion. Review and update system piping, asrequired. Calibrate the steady state
InfoWater hydraulic model to check model results against field conditions through up to three hydrant flow test
comparisons. Hydrant flow tests will be conducted by the City. Allocate 10-year, 20-year demands, and updated
diurnal curve to the model. it is assumed the City will confirm all fire flow requirements (FFR) in the model and
provide revisions, asneeded.
510. Future Storage Siting. Based nnthe required storage, uptofour locations for afuture reservoirs will be
evaluated based on the locations defined in 2014 Water Reservoir Siting Study that may include, but are not
limited to:
a. CeriniHDi
b. Existing Tank Location
c. Lease from AdjacentUti|ity.
d. Private Parcel mnNorth Hill.
Develop required pipe 5izing for each location using the hydraulic model determine if pipe upsizing improvements
tothe existing system would berequired for each location. It isassumed the locations will use the same pipe
routing proposed inthe 2UI4study; nonew reservoir locations will beconsidered. |t|sassumed the City will
conduct all discussions with adjacent utilities. The options will exclude service to the 340, 380, and 465 Pressure
Zones. Develop preliminary costs consistent with Task 900 for the options to aid with City decision making.
Future Storage Siting will bepresented aspart ofMeeting No. 5—Desktop Analysis Workshop
511. Fire and System Pressure Analysis. Using the updated hydraulic model, perform analysis of the system
evaluating fire flow and system pressures per DOH regulations and guidelines based on the City's water system
criteria. The steady state analysis will focus on distribution capacity deficiencies for pressure, velocity, and
available fire flow. Prepare figures showing deficiencies.
512. Identification of Water Improvement Projects. Identify improvements to address deficiencies under the MDD
plus fire flow simulations and the peak hour simulations for the 10-year and 20-year scenarios. Previously
identified supply, storage, and booster pump station improvements will be incorporated to assist in meeting
deficiencies. The water system projects will be incorporated into the existing CIP from the 2015 Plan and any
changes tnprojects will besummarized, ifrequired.
513. Meeting No. 6— System Improvements Workshop. Present identified deficiencies and improvements for City
review and comment.
5I4 Create Draft Chapterfor ChapterS—Systom Analysis. Prepare draft Chapter Sfor Oty'sreview and approval.
City comments and Consultant responses will be tracked in the Comment Response Log. Comments on this
chapter will beincorporated into the final Plan.
Task 500oumptions
* The City will provide assumptions onfuture sources and quantities ofsupply.
° The City will provide assumptions on future storage locations and conduct all discussions with SPU or
adjacent utilities.
° The City will conduct hydrant flow testing to support model calibrations.
Page 9 of 16
45
° This task will require a complete update of the Chapter with all new information.
TaskB00 CitvDelivembles
]L Requested Data.
2. [ommentsondraftChapterS—SystemAna|ysis
Task 500Consultant Deliverables
I. K8eetingNo.5—DesktopAna|ysisVVodohopAgenda,K4ateha|s,andK0nutes.
2. Meeting No. 6 — System Improvements Workshop Agenda, Materials, and Minutes.
I Draft Chapter 5—System Analysis.
4. ROC for Chapter 5—System Analysis.
S' Hydraulic Model Update and Calibration Technical Memorandum.
Task B0Meetinas
* Meeting No. S—Desktop Analysis Work -shop.
• Meeting No. 6 — System Improvements Workshop.
TASK 600—WATER USE EFFICIENCY
The purpose of this task is to summarize the [ity'sWater Use Efficiency Program asamember ofCascade Water
Alliance and will develop 2020 Chapter 6 — Water Use Efficiency. An independent WUE Chapter is being created to
assist the City in meeting future regulatory requirements. The task will include the following activities:
TASK 600 ACTIVITIES
602. Data Acquisition. Prepare adatarequetforthemquiradinfomnatinn.VVUEwiUbediscusedaspartof
Meeting No. 4— Demographic Analysis and Demand Projections. The request may include, but isnot limited to,
the following:
° Cascade Water Use Efficiency Program.
• VVUEgoals and public adoption documentation.
~ VVUEmeasures that have been implemented.
w Yearly consumer education.
• Reported Water Loss.
603. Revise Chapter 5. Prepare a revised Chapter 6 — Water Use Efficiency based on updated information. It is
anticipated that program revisions will be minor and the water demand with conservation will be reflected in the
"low" demand scenario developed. An electronic version of the draft Chapter will be sent to the City for review.
City comments will be recorded in the Record of Comment and will be incorporated into the Chapter as part of the
City Review Draft Plan.
Task 600Assumption
~ City can provide elements listed under Task 6O2.
• This task will involve updating the content from the 20I5P|an.
w Nnhard copy pfthe chapter will bedistributed.
Task 600OtvDeliverables
l. Requested Data from Task 602.
l Water Loss Control Action Plan.
3. Comments on Draft Chapter 6 —Water Use Efficiency.
Task 600Consultant Deliverables
I. Draft Chapter 6—Water Use Efficiency.
DRAFT 'lO/l4/2019
Page 10 of 16
46
2. ROC for Chapter 6—Water Use Efficiency.
Task 600Meetings
* None
TASK 700—WATER QUALITY
The purpose of this task i»tosummarize water quality regulations and reporting requirements, evaluation of
water quality against the regulations, summary ofany water quality violations, and recommended improvements,
ifnecessary, tomeet anticipated orfuture water quality regulations. This task will develop 2OJ0Chapter 7—Water
Quality of the Plan. An independent Water Quality Chapter is being created to assist the City in meeting future
regulatory requirements. The task will include the following activities:
TASK 700 ACTIVITIES
702 Data Acquisition. Prepare adata requests will beprovided required information. The request may include, but
is not limited to, the following:
* Water Quality Sampling Proceduns&Program.
* Consumer Confidence Reports.
• Water quality violations, ifapplicable.
m Revised [p|YformMonitoring Plan.
• Boil Water Notices.
703.Rev$e Chapter 7. Prepare a revised 2020 Chapter 7 — Water Quality based on updated information. Revisions
will be discussed as part of Meeting No. 8 — Operation and Maintenance Chapter Review. It is anticipated that any
revisions will be minor. An electronic version of the draft Chapter will be sent to the City for review. City
comments will be recorded in the Record of Comment and will be incorporated into the Chapter as part of the City
Review Draft Plan.
Task 700Assumption
• City can provide elements listed under Task 7UI
m This task will involve updating the chapter from the ZOISPlan.
° No hard copy ofthe chapter will bedistributed.
* This task does not include review orupdate ofthe [ity,sWater Quality Monitoring Plan, Co|ifurm
Monitoring Plan, and other water quality programs and plans.
Task 700City Deliverohles
I. Requested Data from Task 7U2
2. Water Quality Sampling Procedures @Progrann.
3. Revised CoOfnrmMonitoring Plan.
4. Comments onDraft Chapter 7—Water Quality.
Tusk 70DConsultant Deliverables
I. Draft Chapter 7—Water Quality.
2. ROC for Chapter 7— Water Quality.
Task 7DOMeetings:
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47
TASK 800 — OPERATION AND MAINTENANCE
The purpose nfthis task jstnreview, update, and evaluate the City'sOperations and Maintenance (O&N)
Program document 2020 Chapter 8—Operations and Maintenance. The chapters will bedeveloped based onthe
information contained in 2015 Plan Chapter 7, which has been renumbered from the 2015 Plan due to changes in
earlier chapters. An evaluation of the O&M programs will provide recommendations for new or updated
maintenance programs, as needed. This task will include the following activities:
801 No. 7 - Existing ChapterReview. Facilitate a meeting to review and identify updates needed to 2020
Chapter 8 — Operations & Maintenance. A data request will be prepared based on the meeting.
802. Data Acquisition. Prepare a data requests will be provided required information. The request may include,
but isnot limited to, the following:
• The standard plans and specification, in MS Word. It is assumed the City will provide its standard plans
and specifications for inclusion inthe Plan.
• Water system organization chart and operator certifications.
• Public Works Emergency Response Plan.
• Cross'[nnnectinn'[ontro| Program.
w Route and preventive maintenance schedules for major system components.
* Water Shortage Response Plan and Service Reliability.
803. Summarize Remaining UsefulLife. Summarize remaining useful life of water mains based on the Pipeline
Asset Management Study completed by[aro||oin2O14. Develop afuture water main repair and replacement
program based onthe findings ufthe study.
804. Revise Chapter7— Operation and Maintenance. Update 2015 Chapter 7 based on information provided by the
[ity.Thismayindudeorganizatinn,certificatipn,D&K8programacdvitiesupdatas,andkno*nmajordeMdencies
in the City's O&M program. A detailed evaluation of City O&M programs will not be conducted. An electronic
version of draft 2020 Chapter 8 will be sent to the City for review and City comments will be recorded in the
comment response log. Comments will be incorporated in the Chapter as part of the City Review Draft Plan. This
task assumes that nohard copy ofthe chapter will bedistributed.
Task 800Asomptioms
* City can provide elements listed under Task 8OI.
w This task will involve updating the chapterfromthe Z0I5Plan.
• Nohard copy ofthe chapter will bedistributed.
Task 800 City Deliverables
l. Requested Data from Task 802.
Z. Comments on Draft Chapter 8—Operations and Maintenance.
Task 800Consultant Deliverables
l. Meeting No. 7 — Operations & Maintenance Chapter Review Agenda, Materials, and Minutes.
Z. Draft Chapter 8—Operations and Maintenance.
3. ROC for Chapter 8 — Operations and Maintenance.
Task 00Meetings
TASK 900— CAPITAL IMPROVEMENT PLAN
48
Page 12 of 16
This task will summarize the recommended improvements for the water system in accordance with the City's
policies and criteria. This task will develop 2020 Chapter 9 — Capital Improvement Plan, which has been
renumbered from the 2015 Plan due to changes in earlier chapters. Total project costs will be developed for each
recommended improvement and ranked by priority. Tasks involved include the following activities:
TASK 900 ACTIVITIES
90I CIP Projects with Triggers. Identify and describe CIP projects from prior tasks and existing City planning.
Prepare adescription ofeach project. Arecommended implementation date, with based onaquantitative project
"trigger",will bedefined for each C|Pproject.
902. Cost Estimates. Develop planning level cost estimates for all recommended projects using costs provided in
other planning efforts. Cost estimates for construction, engineering, permitting, and other contingencies will be
prepared; all costs will be given in 2020 dollars.
903.Prinitization Prioritize condition -related and capacity -related projects identified in the previous tasks for
inclusion inthe (]Pincollaboration with the City |nMeeting No. O.
9O4.Electronic [0o Develop anelectronic [|Ptool Using Excel toa» i5tthe(]tyvvithfuturebudgeting.Each
project will be listed on a separate tab including project description, justification, estimated cost, and
recommended yearfor implementation. City staff will be provided the ability to adjust indirect costs and
escalation factors. A copy of the electronic CIP will be provided to City staff. Hardcopies of the project cut-5heet5
will be included as an appendix. The Consultant will train City staff on using the CIP Tool.
905Meeting No. 8— Capital Plan. Facilitate meeting with City Staff toreview the recommended OP'
9OGCreate Dnzft[hopter9-Capital Improvements Plan. Prepare chapter including adescription ofcost estimating
methods, project analysis, final recommendations, summary table, and system maps with the location of
recommended improvements. It is assumed the efforts in this Task will require a complete update of the Chapter
with all new information. An electronic version of draft Chapter 9 will be sent to the City for review and address City
comments in a comment response log for the City's approval. Comments will be incorporated in to the Chapter as
part of' the City Review Draft Plan. This task assumes that nohard copyofthechaptervi||be distributed.
Task 900Assumption
0 This task will require a complete update of the Chapter with all new information.
Task 90DCity Deliverables
1. Standard Construction Specification for Distribution Mains.
2. Comments ondraft Chapter 9—Capital Improvement Plan.
Task 90DConsultant Deliverables
l QPCost Estimates
I Draft Chapter 9—Capda|Improvement Plan.
3. ROC for Chapter y—Capital Improvement Plan.
4. Meeting No. 8 — Capital Improvement Plan Agenda, Materials, and Minutes.
Task 9ODMeetings
* Meeting No. 8—Capital Improvement Plan.
TASK 1000 — FINANCIAL PLAN
The purpose of this task is to develop 2020 Chapter 10 — Financial Plan, which has been renumbered from the
20ISPlan due tochanges inearlier chapters. The[ity*W||ead[hapter1lvyhich`wi||indVdeamhistgnca|finanda|
overview of the system and summarize current policies, rates, and fees. Ten-year projections of revenues and
Page 13of16
49
expenses wiUbedeveloped to identify the tota I cost of providing water service and implementing the capita I
improvement program. Potential funding sources for CIP projects will be identified.
TASK 1.000 ACTIVITIES
1002. Meeting No. 9 — Financial Plan. Review financial analysis conducted by City Staff.
1UO3.Review and Format Draft Chapter ID —Financial Plan. Review and format City prepared draft Chapter I0for
City's review and approval. Comments will be provided for City responses electronically
Task 1000Assumption
v This task will require acompleted bythe City
Task I0JU[dyDeliverables
I' RDraft[hapterIU—Finanda| Plan.
Task! 000 Consultant Deliverables
I Draft Chapter IO—Financial Plan
2. Meeting No. 9 —Financial Review Agenda, Materials, and Minutes.
TaskI00D Meetings
a Meeting No. 9 — Financial Review.
TASK 1100 — PLAN INTEGRATION
The purpose ofthis task istointegrate all chapters and appendices into the full Plan for review and adoption bv
the City. This task includes review of all chapters for consistency with DOH's requirements for a Comprehensive
Water System Plan per WAC 206-290-100.
TASK 1100 ACTIVITIES
11O1.Executive Summo(y.Prepare anexecutive summary, summarizing each element ofthe Water System Plan.
l2OZ.Ci¢'DnzftPlan. Prepare Cover Sheet and Table of Contents. Compile Chapters and develop Appendices.
Incorporate comments into Draft Chapters based onCity accepted RO[s.Prepare e|ectnonicneviewdraft
document for City Staff (one PDFcopy).
IIO3.Meeting No. 10 — City Draft Plan. Meet with City to discuss comments of draft document. Incorporate
comments tobeincluded into Agency Draft Plan.
1104. Agency Draft Plan. Incorporate City comments into an Agency Draft plan to be submitted for agency
review. Prepare three (3) hard copy and one PDF for distribution of Plan to Agencies and Adjacent Purveyors.
lIOS.Meeting No. II Commission/ Public Review. Attend a Commission meeting to support City Staff in gaining
public comment and/or commission approval of the Plan, as selected by City staff. Aid City Staff in preparing
technical materials for the meeting.
1I06.Final Plan. Consultant will review agency review letters for incorporation into the Final Plan. Delivery of the
Final Plan will include two PE -stamped notebook binders, one PDF, and all electronic deliverables.
Task I200Assumptions
w City provides required documents for appendices, including acceptance ordinances.
• It is anticipated that City will distribute the Plan to DOH, County agencies, and adjacent purveyors review
for approval. The City will collect public and agency review comments and address all comments. The
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50
Consultant will provide technical assistance, ifrequired. City will develop written responses Locomments
received during Agency Review process.
Task 2I0UCity Deliverables
I. City Comments.
2. Public and Agency Review Comments.
Task IlDD[onsubontDeliverables
I. Executive Summary.
Z CityDraftP|an—One PDF.
3. AgencyDraftP|an—TheehardoopiesandonePDP.
4. Final Plan —Two hard copies and one PDF.
E Meeting No. 10—City Draft Plan Agenda, Materials, and Minutes.
6. Meeting No. II — Commission / Public Review materials.
Task lI00Meetings
w Meeting No. l0—City Draft Plan.
p Meeting No. II — Commission / Public Review.
Comprehensive Water System Plan '
`.
^
' - '
TUle'
Meeting No. 1
'
Kick-off Meeting
Meeting No. 2
2015 Chapter 1 Review
Meeting No. 3
Meeting No. 4 Exi5ting System Chapter Review
Meeting No. 5 Demographic Analysis and Demand Projections Workshop
Meeting No. G Desktop Analysis Workshop
Meeting No. 7 System Improvements Workshop
Meeting No. 8 Water Use Efficiency Chapter Review
Meeting No. 9 Water Quality Chapter Review
Meeting No. 0 Operations and Maintenance Chapter Review
Meeting No. 11 Capital Improvement Plan
Meeting No. 12 Financial Review
Meeting No. 13 City Draft Plan
Meeting No. 14 Commission / Public Review
Page 15of16
51
Comprehensive; Water System Plan
SUMMARY OF DELIVERABLES
Del
Note
applicable)
Project Management Plan
All Meeting Agendas & Minutes
Monthly Progress Reports (with invoices)
Data Request Spreadsheet
Draft and ROC for Executive Summary
Draft Chapter and ROC for Chapter 1— Introduction Revision of chapter from 2015 Plan
Draft Chapter and ROC for Chapter 2 — Description of the Water System Revision of chapter from 2015 Plan
Draft Chapter and ROC for Chapter 3 — Policies and Criteria Revision of chapter from 2015 Plan
Draft Chapter and ROC for Chapter 4— Water Requirements Full chapter update.
Draft Chapter and ROC for Chapter 5 — System Analysis Full chapter update
Draft Chapter and ROC for Chapter 6 — Water Use Efficiency Revision of chapter from 2015 Plan.
Draft Chapter and ROC for Chapter 7— Water Quality Revision of chapter from 2015 Plan
Draft Chapter and ROC for Chapter 8 — Operations & Maintenance Revision of chapter from 2015 Plan
Draft Chapter and ROC for Chapter 9 — Capital Improvement Plan Full chapter update
Draft Chapter and ROC for Chapter 10 — Financial Plan Full chapter update
City Draft Plan
Agency Draft Plan
Final Draft Plan & All Electronic Files
DRAFT - 10/14/2019
pw://Carollo/Dotuments/ClientiW A/Tukwila)_Proposals/Tukwila_W ater_Scope
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EXHIBIT
CITY OFTUKgVLA
DRAFT SCOPE OFSERVICES
COMPREHENSIVE SANITARY SEWER PLAN
The following is a scope of work for the Comprehensive Sanitary Sewer Plan (Plan) for the City of Tukwila. The
Plan will becompleted byCardlo Engineers. Howevesome tasks and task elements will require the participation
of City staff from the Planning, Finance, and Public Works Departments. This scope is developed to describe the
content and purpose of the Plan, determine tasks to be completed for the update of the previous plan, and
identify the resources necessary toaccomplish those tasks.
The Plan will be based on the Washington Administrative Code (WAQ 173-240-050 standards. The plan will
include a future flow projections, system analysis, and a capital improvements plan (CIP) for existing (2019), 10-
year,andbui|d'outscenarios.TheZUI3SevverSystemP|anUpdate([aro||o)wi||beusedasthebasisfo,this
scope ofwork.
PROJECT ASSUMPTIONS
I. Carollo Engineers, Inc. and its subconsultants will be referred to as "Consultant"in this document.
2. The City nfTukwila and its staff will bereferred tnas"Citv°inthis document.
3. All meetings will beheld atCity offices.
4. Draft Chapters will be provided in electronic copy (PDF and/or Microsoft Word) transmitted via email or
secure file transfer.
S. City comments on draft chapters will be documented in the Project Comment Response Log by the
Consultant. The Consultant will prepare responses to address the comments in the Comment Response
Log for the [ity'sreview and acceptance. Resulting changes will beincorporated inthe Draft Agency
Review Plan, rather than reissuing a draft chapter at the time. However, revised draft chapters can be
produced upon City required.
6. The Consultant will prepare an agenda, presentation materials, and document discussions, including
action items and decisions, for Consultant -led meetings. Meeting notes and related materials will be
transmitted electronically |n&4SWord and PDFformats via email.
7. The City will print and produce additional copies of all documents as necessary for its use.
Q. The City will provide available information related tothe project and asrequested bythe Consultant ina
timely manner. The City shall furnish Consultant available studies, reports, and other data pertinent to
Consultant's services; obtain, or authorize Consultant to obtain, or provide additional reports and data as
required; furnish to Consultant services of others required for the performance of Consultant's services
hereunder, and Consultant shall be entitles to use and rely upon all such information and services
provided by the City or others in performing Consultant's services under this Agreement.
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Comprehensive Sanitary Sewer Plan
SUMMARY OF CHAPTERS AND APPENDICES
Chapter / Appendix
Chapter Lead
Executive Summary
Consultant
Chapter 1: Introduction
Consultant
Chapter 2: Flow Monitoring
Consultant
Chapter 3: Flow Projections
Consultant
Chapter 4: Existing System
Consultant
Chapter 5: System Analysis
Consultant
Chapter 6: Operations and Maintenance
Consultant
Chapter 7: Capital Improvement Plan
Consultant
Appendix A: State Environmental Policy Act Checklist and Determination of Non -Significance City
Appendix B: Agency Review and Comment Letters
City
Appendix C: Adopting Resolution
City
Appendix D: King County WTD Conveyance Agreement
Appendix E: System Map with Detailed Pipe
City
Consultant
TASKS
To meet the objectives of this Scope of Services, the Consultant shall complete the tasks as summarized in the
table below and discussed in detail in the text that follows.
Comprehensive Sanitary Sewer Plan
SUMMARY OF TASKS
Task Number
ITaskName
Task 100
Project Management
Task 200
Introduction
Task 300
Flow Monitoring
Task 400
Flow Projections
Task 500 Existing System
Task 600 System Analysis
Task 700 Operation and Maintenance
Task 800 Capital Improvement Plan
Task 900 Plan Preparation
The scope of services for the above project will consist of the following tasks.
TASK 100 — PROJECT MANAGEMENT
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This task includes routine management activities, submittal of monthly progress reports, and overall coordination
and assistance. It is anticipated that the Project will be complete by December 2020. Project timeline
modifications may require project hour and budget modifications. This task includes the following activities:
TASK IODACTIVITIES:
IOl Monthly Progress Reports. This subtask includes production and implementation of the project plan,
schedule, and budget. Assist theprojectteammembeointheimp|ementatnnofthetaskitems reviewing the
work -in -progress reports. Prepare and submit monthly activity reports showing current project status and
identifying key issues or elements of the project that will need to be addressed in the proceeding weeks, An
electronic version of the monthly progress reports will be sent to the City for review and approval. This ta5k
assumes that no hard copy of the monthly progress reports will be distributed.
102Project Management Plan. Prepare aProject Management Plan (pk4P)that describes deliverables, Plan
outline, anticipated meetings, project roles and responsibilities, lists contact information for the project team,
describes communications protocols, quality management, and includes the scope of services, schedule, and
bVdget.Qua|ityManagementinc|udes,6otisnot|lm|tedtn,thefoUowinge|ements:
w Project Manager overview of all primary documents to verify technical consistency and compliance with
contract requirements.
° Organization of the work into logical deliverables with qualified staff for each task assigned to the work.
m Resolution of all review comments with a memorandum summarizing key comments and the manner in
which each was addressed inthe work.
Anelectronic version ofthe Project |Management Plan will bosent tpthe City for review and approval. This task
assumes that nohard copy ofthe Project Management Plan will bedistributed.
103. Meeting No. I — Kick-off Meeting. Facilitate a kick-off meeting to review project management and initial
data requests.
104.Client Coordination.
m Manage the consultant project team totrack time and budget, work elements accomplished, work items
planned for the next period, manpower, scope changes, time and budget needed to complete the project.
° Create and maintain a working project schedule based on the schedule in the PMP.
* Review project status, including scope, budget, and schedule.
Task 100 Assumptions
* The PMP will be updated with full incorporation of review comments after the City review of the draft PMP.
* The total length ofthe project isl4months.
w City provides required documents for appendices.
TaskIDDCity Deliverables
I. Team member contact information.
2. PK4Preview for completeness.
3. Receive, review, and process Consultant invoices inatimely manner.
4. Respond todata requests in timely manner. .
Task IDDConsultant Deliverables
l. Draft 'request list.
l. Draft Plan outline.
OR4PT' 9 �
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3. DraftPK4P.
4. FimdPMP.
S. 14 monthly progress reports and invoices.
Task 200Mee tings
0 Meeting No. I — Kick off Meeting.
TASK 200 — INTRODUCTION
This task includes basic information that will serve as a foundation for developing a comprehensive program to
meet current and projected future sewer system needs. This task will develop ChapterIIntroduction. The task
includes the following activities:
201. Meeting No. 2 - 2013 Chapter JL Review. Facilitate a meeting to review and identify updates needed to
Chapter l—Introduction. This may include: related comprehensive se*erp|ansfmmtheneighboring1uhsdicdons
and other related plans; recent history of the City's sewer, system background, and policy and criteria. A data
request will beprepared based onthe meeting.
202. Data Acquisition. Prepare a data request forthe required information. The request may include, but is not
limited to, the following:
• Related comprehensive sewer plans from the neighboring jurisdictions and other related plans.
w Agreements with neighboring jurisdictions.
° Neighboring/adjacentjurisdictions map, in Geographic Information System (GIS) format with current
boundaries.
• GIS data for the sewer system including City Limits, current sewer service area, urban growth area (LIGA),
Auto[ADdata for existing facilities, andinterties.'
• Service and Fiscal Policies related to service area and conditions of service, in MS Word. It is assumed the
City will provide language for all requested changes to policies and criteria.
• Emergency Management goals, including redundancy and reliability standards related to system
components, inMSWord.
• The standard plansandspedfication,inN1SVVord.|t1sassumedthe[itywi||prmvideits'standardp|ans
and specifications for inclusion inthe Plan.
2D].Revise Chapter 1' Introduction. Prepare arevised Chapter l Introduction based onCity direction. |tis
anticipated that any revisions will be minor. An electronic version of draft Chapter 1 will be sent to the City for
review and Consultant will address City comments in a comment response (ROC) log for the City's approval.
Comments will be incorporated in to the Chapter as part of the City Review Draft Plan in Task 900.
Task 200Aoumptionz
° City can provide elements listed under Task ZOI
* This task will involve updating the chapter from the IOl3Plan.
° Nohard copy ofthe chapter will bedistributed.
Task 2Q0City Deliverables
l. Requested Data from Task 2OZ'
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I Comments ondraft ChapterI—|ntroduction.
Task 20QConsultant Deliverables
I. Draft Chapter l—Introduction.
Z. ROC for Chapter l—Introduction.
l Meeting Agendas and Minutes.
Task 200 Meetinqs
TASK 300—FLOW MONITORING
This Task will conduct and evaluate flow monitoring to allow accurate estimates of existing and future system
flows, so that the City can adequately plan to accommodate its future sewer needs. This task willinclude flow
monitoring of up to seven (7) locations by a Subconsultant. This task will be documented in TM No. 1 — Flow
Monitoring that will be included as an Appendix of the Plan. The task includes the following activities:
TASK 300 ACTIVITIES
301. Review and Update Sewer Service Area and Basins. Review existing sewer service area and basins based on
changes toparcels, collection system piping, and laterals information. Itisanticipated the City will provide updated
�
information electronically. Update Sewer Basins and provide an updated map for City review and confirmation.
302. Identify Primary Collectors and Lift Stations. The City will identify primary collectors and lift stations for
potential flow monitoring and inclusion in the hydraulic model (Task 600). It is anticipated the collectors will be
.'skeletonized" to only include pipes greater than 12-inch and 8-inch pipes needed to represent flow conditions from
sewer basins. To assist with future tasks, the City will need to provide invert elevations for the selected primary
collectors and information onLift Stations.
]U3.Identify Flow Monitoring Locations. identify recommended locations in install temporary flow monitoring
devices 1nthe gravity system atupfive (5) locations tomeasure primary collectors and mLift Stations south ofl'
40lAnadditiona|two(2) flow monitors onprimary collectors orlift stations will beadded north of|'405,as
directed by the City. Flow monitoring locations will be provided to the City to confirm their suitability for meter
installation.
304'Flow Monitoring ADS will provdetemporaryflm*rnonitorngsen/ces toConsultant tocollect three (3)
months of flow data up to seven (7). After completion of the monitoring, ADS will provide a Rain Dependent
Inflow & Infiltration (RDI/1) Analysis and an electronic report. The work will be performed in three phases as set
forth below:
a. Phase I - Mobilization
z. Site Locations ' ADS will work with the Consultant and the City toidentify/verify the seven %0
locations for monitor installations. Upon approval bythe City, additional locations may beadded per
the optional Costs inthe budget.
z. Site Investigation - Once the installation sites are provided to ADS, ADS field crew(s) will perform
site investigations. ADS will utilize a standard two (2) person field crew for fieldwork and comply
with Federal standardsfovconfined-5paceentry. The proposed flow monitoring location will be
located, inspected, and verified for hydraulic suifabi|ity. ADS will also check for debris inthe
manhole that could impact data quality and coordinate any required cleaning efforts with the City.
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ADS field crews will look for evidence and signs of erratic flow patterns. ADS will also investigate
adjacent manholes in order to identify the best monitoring locations.
3. Site Reports- Site reports will be generated upon completion of the site investigations. The site
reports will include a sketch of the general location, physical characteristics and diameters of the
proposed monitoring locations, manhole depths, flow measurements, and other comments
pertinent to the location such as any special traffic or safety issues. Final site locations to be
approved by the Consultant.
4. Equipment - ADS will utilize wireless ADS@ Model Triton+TM flow monitors during the course of this
project. A typical monitor installation will include an ultrasonic depth sensor that will be mounted at
the invert of the pipe, a redundant pressure depth sensor; and a Doppler velocity sensor also
mounted at or near the invert.
5. Monitor Activation - Once installed, the monitor will be activated and set to take readings at 5-
minute intervals. ADS Field crews will take manual depth readings with a ruler and velocity readings
with a portable, instantaneous velocity meter in order to confirm the monitor is collecting accurate
data based on the actual existing hydraulic conditions at each location.
b. Phase II Flow Monitoring
1. Flow Monitoring - Once the monitors are installed and verified to be in working order, ADS will
monitor fora period of four (4) calendar months ("monitoring period"). This initial monitoring period
can be extended based on mutual consent; and written agreement of additional work and price for
such additional work. Anticipated flow monitoring locations are listed in Table 1. Upon approval of
the City, the flow monitoring may be extended by up to two months per the optional costs in the
budget.
2. Data Collection and Equipment Maintenance - ADS will collect data from each monitoring location
remotely using telemetry on a daily schedule (for sites with good wireless signal). The ADS project
team will review the data weekly to ensure each monitor is running properly meeting the project
objectives as well ADS `standards. ADS Field Crews will perform site confirmations, site
maintenance which may include, cleaning the sensor(s), moving, changing or replacing any failed
component at each monitor location.
3. Demobilization - Field crews will continue data collections and confirmations (as necessary) until the
end of the monitoring period. Once authorized, crews will immediately begin removing the flow
monitors and deliver final data to the data analyst.
c. Phase III Data Editing, Analysis and Reporting
s. Data Analysis - Upon completion of the monitoring period, a trained ADS Data Analyst will begin to
finalize the data collected for each monitoring location. The data analyst will directly calculate flow
using the continuity equation from recorded depth and average velocity data. Flow quantities as
determined by the continuity equation will be plotted.
2. Sli/icer RDI/I Analysis - For each of the flow monitoring location, the analysis will characterize the
average dry weather flow conditions and RDI/I calculations for all significant wet weather events, an
assessment of hydraulic performance under such conditions. The results of dry weather and wet
weather performance will be plotted on maps of the sewer sheds to make it easier to understand
where RDI/i originates. The Sliicer.com section of the Report will include the following items:
• Dry Weather Analysis — A characterization of the conditions observed during weekday and
weekend periods of the flow monitoring period during dry weather periods, excluding periods of
extended system recovery to previous rain events. Summarized as a time -series hydrograph of
the average diurnal flow quantities for weekday and weekend dry weather periods.
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w Dry Weather Flow Summary —A table of the Average Dry Day Flow (ADD F) and an estimation of
Base Infiltration (B|).Average dryweatherdiur a|pattemsw0|beonovidedforeachflow
monitoring location during weekday and weekend portions of the monitoring period.
* Wet Weuthe A Acharacterization ofthe conditions observed during specific wet
weather events observed during the flow monitoring period, summarized as a time -series
hydrograph comparing observed flow quantities to average diurnal flow quantities for
corresponding weekday and weekend dry weather periods.
° Wet WeatherSummary— A characterization of the conditions observed during the maximum
rain event of the monitoring period. This can be summarized as the maximum 30 minute
average peaking factor observed during the flow monitoring period.
* Wet Weather Prioritization —A column chart of the Rain Dependent Inflow/Infiltration (RDI/1)
determined for each flow monitoring location for each wet weather event. Column chart
provides a prioritized ranking based on net RDI/I (as percent rain ingress if basin acreages are
provided) or net RDI/I per linear foot of sewer per inch of rain when linear footage information is
provided toADS.
* Hydraulic PprfonnonceEvaluation —Anarrative interpretation nfhydraulic performance recorded
at each flow monitoring location as determined Using a scattergraph of flow depth and velocity
data. The scattergraph interpretation shall evaluate the ability of each flow monitoring location
to accommodate flow quantities observed during dry weather and wet weather conditions
observed during the monitoring period.
i.. Data Delivery and TM No. z—Flow Monitoring Summary ' ADS will prepare Final T[Ntoinclude
electronic data ofthe flow data intabular, hydrograph/scattergroph,and a RD|/|report inelectronic
format.
z. Meeting NO. zz—Flow Monitoring Summary -Facilitate aworkshop with City Staff toreview the
results and conclusions drawn from the flow monitoring.
305. Rainfall Data Review. Obtain and process hourly rainfall data corresponding to the monitoring period from the
NQAASEATA[Airport weather station.
306. Flow Monitoring Data Review. It is anticipated that data will be available from up to seven (7) monitoring
locations for the ZOl9/IOZOwinter. The data quality for the events will beevaluated for each meter and reviewed
with the City. Flow monitoring data will also be reviewed to identify storm events that lead to wet weatherflows in
the collection system and are suitable for wet weather model calibration. The rainfall for these specific events will be
compared with the rainfall record to a5se55 the individual storm sizes return periods. Ideally data will be available for
three to five storms. Wet weather flows, R-Factors and 1/1 rates will be calculated for each meter or SCADA source
for up to three storm events. The flow monitoring data analysis will result in modified wet weather modeling
parameters that will 6eused inthe hydraulic model.
]O7.Meeting .No. 3'Flow Monitoring Review. Facilitate aworkshop with City staff toreview the findings pfthe
Flow Monitoring.
308. Draft Chapter 2 — Flow Monitoring. Consultant will summarize the results of the flow monitoring and data
review in Chapter 2: Flow Monitoring. It is assumed the efforts in this Task will require a complete update of the
Chapter with all new information. An electronic version of draft Chapter 2 will be sent to the City for review and
Consultant will address City comments inacomment response (RO[)log for the [ity'sapproval. Comments will
be incorporated in to the Chapter as part of the City Review Draft Plan in Task 900.
Task 3D0Assumptions
° This task will require a complete update of the Chapter with all new information.
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• No hard copy of the draft chapter will be distributed.
Task 300 City Deliverables
1. Requested Data.
2. Review of Draft TM No.1— Flow Monitoring.
3. Review of Draft Chapter 2 Flow Monitoring.
Task 300 Consultant Deliverables
1. Draft and Final TM No.1— Flow Monitoring.
2. Draft Chapter 2 — Flow Monitoring.
3. ROC for Chapter 2 — Flow Monitoring.
4. Meeting Agendas and Minutes.
Task 300 Meetings
• Meeting No. 3 — Flow Monitoring Review.
TASK 400 — FLOW PROJECTIONS
The objective of this task is to develop the sewer flow projections for the sewer service area for the current (2019),
10-year, and build -out (maximum density) scenarios. Sewer flows will be based on the flow monitoring in Task
300 and the City's demographic projections. A new hydraulic model will be created and used to estimate future
wet weather flows. The model will include the developed area south of 1405 and up to two (2) sewer basins north
of 405. This will not be an all pipe model of the system. The information developed in this task will become
Chapter 3 - Flow Projections. This task includes the following activities:
TASK 400 ACTIVITIES
401. Data Acquisition. Data requests will be provided at the kick-off meeting and as needed throughout the
project. The City will provide:
• Current I/1 program.
• Summary of 1/1 projects completed since the 2013 Plan.
• Sewer connections by customer class.
• Sewer conservation flow reduction rate.
• Map with direct connections to King County wastewater system.
• Data on number, horsepower, capacity, design, point for all pumps at the City's Lift Stations.
• Lift Stations run time.
• City Planning Department existing and future populations and employment based on PSRC's 2040 Vision
demographic projections and more current planning for the service area. These growth rates for the 10-
year scenario will be consistent with the Comprehensive Water Plan.
• GIS Data: land use, zoning data within the City Limits, sewer service area and UGA. It is assumed that
these data will be provided in GIS format.
• GIS Data:. existing facilities (pipes, manholes, lift stations, connections with King County, etc.), and
interties.
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4UZ.Update Service Area, Land Use, and Zoning. Based onCity provided data, update mapping and
descriptions ofexisting and future service areas, |anduse/andzonhngforthe[itySewarServiceAnea.TheP|an
will include both figures and text.
403. Demographic Projections. Allocate the existing and 10-year and build -out projection Of5ewered population
and employment provided by the City Planning Department to Sewer Basins. The 10-year growth rates will be
consistent with the Comprehensive Water Plan. The build -out projections are anticipated to be based on
Comprehensive Plan land use.
404. Design Storm. A design storm has been developed from a long term historical rainfall record at a number of
sites near the City. Rainfall data from the ongoing i monitoring program will bereviewed and evaluated to
determine if the design storm previously identified for wet weather flow modeling should be revised. The more
recent data will also be Used to evaluate any local rainfall variability and trends. This review will be prepared to
provide the City with a defensible "Design"storm that emulates local weather patterns
405. Develop Existing Dry Weather Flows by Basin. Utilize existing land use maps to develop or confirm average
dry weather flows (ADWF) for the modeled sewer basins. The flows will be confirmed with the flow monitoring
data as well as the available flow data from the lift stations. Existing land use and currently served areas will be
usedtoestimateflnvvfactorsperacreper|andosacategnry.Thef|nwfactn/wi||becustomizedtnmatdhthe
observed existing AD\WFand will be Used todevelop flow projections. For basins without measured flow data,
flow factors will be assigned from a measured basin with similar land use characteristics.
406.Qeve|mp 10-year and Build -out Dry Weather Flows by Basin. The City's comprehensive plan and any
additional information on housing densities, commercial and industrial uses will be used along with the flow
factors developed in the above task to determine the ultimate development acreage and the ADWF for build -out
conditions for uptosewer collection system.
407. Create Hydraulic Model. Using the most recent information from the City's GIS data, create a sewer system
hydraulic model using Innovyze InfoSWMM software. The model will include the developed area south of 1405 and
up to two (2) sewer basins north of 405. The model will include lift stations and primary collectors, and does not
include the laterals, branches, nrsmaller truck sewers serving individual parcels within the basins. The [hy`s
existingG|SAncVievv"shp"fi|es=i||6eosedtn1mpnrttheco||ectionsystemdataintothehydrau|icnnode|.|fnot
available inthe G|S,the City will provideinverte|evationsatkey|ocatlnnstocnnstructthemnde|.Add|iftstatinn
controls provided by the City to simulate realistic lift station operation. Estimate likely boundary conditions at
connections King County transmission maios,asrequired.
The uptoseven (7)basins associated with flow monitoring will befurther divided into mini -basins forsanitaryand
wet weather loading in the model. These mini -basins will group parcels that contribute to common branches and
trunks, and will be connected to the modeled primary collector or lift station at the appropriate location.
4O8.Meeting No4'Hydraulic Model [,ea6un..Facilitate ameeting with City staff toreview and confirm the
elements of the hydraulic model. City staff may be requested to perform field verification of model elements
based 'nnthis meeting.
4O9.Calibrate Existing Dry Weather and Wet Weather Flows. The existing dry and wet weather flows will be
calibrated based upon the flow monitoring data, and rainfall data provided by the City as well as additional data
available from the City's SCADA system for up to seven (7) locations in the collection system. Existing flow depths
and velocities will also bechecked and calibrated.
The first step is to ca I ibratethe model to dry weather flow conditions. Flow monitoring data wi I |provdecostom
hourly diurnal curves that establish the daily flow patterns foveachnnetehngba$h.K4ode|resultsvNUbe
compared to measured flows to check for agreement between model results and measured flows. Model
parameters will be adjusted, as needed, to best match the flow monitoring and SCADA data. It is assumed that
the City will provide S[ADAdata inelectronic format.
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Once the dry weather calibration iscompleted, the wet weather calibration isconducted. Rainfall information will
aid in developing the required rainfall -derived infiltration/inflow (RDI/1) estimations that enterthe collection
system during a storm event. Wet weather calibration consists of using three storms that occurred during the flow
monitoring period. It is recommended that the use of a single calibration period incorporating a number of
independent rainfall events should be considered whenever possible. Model results will be reviewed and adjusted,
asneeded, tobest match the flow monitoring, rainfall and S[AQAdata.
The flows from unmetered basins will be developed as best possible using a mass balance between the available
data, and proportioned as best as possible based on development type, age, pipe material, and extent of
collection system components.
The hydraulic model will becalibrated inaccordance with international modeling standards. The Urban Drainage
Group from the Chartered Institution of Water and Environmental Management (CIWEM) has established
generally agreed upon principles for model verification. The dry weather and wet weather calibration will focus on
meeting the recommendations on model verification contained in the "Code of Practice for the Hydraulic
Modelling of Urban Drainage Sy5tem5," published by CIWEM (November 2017).
410. Meeting No. 5 - Model Calibration. Consultant will conduct a workshop (Meeting No. 5) with the City to
summarize the model calibration results. Consultant will present the model calibration results for both dry and
wet weather scenarios. Summary tables will be presented that quantify the percent difference between the
measured data and the modeling results. Consultant will discuss calibration standards and confidence levels at the
workshop.
411. Hydraulic Model Creation and Calibration TM No.2. Consultant will summarize the model creation and
calibration inaDraft and Final TM. Anelectronic version .ofdraft TMwill besent tothe City for review and
address City comments in a Final TM that will be included as an Appendix to the Plan.
412. Develop Existing, 10-yearm and Build out Wet Weather Flow. The calibrated model will be used to
determine the existing, 10-year, and build out flows peak wet weather flows for the sewer service area. Wet
weather flows will bebased onthe selected design storm.
413. Reclaimed Water. As required by Ecology, reclaimed water opportunities will be updated. The City currently
uses reclaimed water from King [ounty'sSouth Treatment Plant. The [ity'scurrent use and potential future
customers will be summarized based on information provided by the City. No new analysis is anticipated for this
413.Draft Chapter ]—Flow Projections. Consultant wiUsum m arize the sewer flow projections in Chapter 3: Flow
Projections. It is assumed the efforts in this Task wi I I require a complete update of the Chapter with a I I new
information. Anelectronic version ufdraft Chapter 3will besent tpthe City for review and address City comments
inacomment response log for the [ity'sapproval. Comments will beincorporated intnthe[hapteraspertnfthe
City Review Draft Plan.
Task 400Assumptions
° City can provide elements listed under Task 40I.
° This task will require a complete update of the Chapter with all new information.
* Nohard copy ofthe draft chapter will bedistributed.
° The model will include the developed area south qf14OSand the primary interceptors north of4O5.This
will not be an all pipe model of the system.
Task 400City Detiverahles
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l. Requested Data.
Z. Field verification ofmodel elements, asrequired.
3. Comments onTK4No. Z—Hydraulic Model Creation and Calibration
4. Comments onChapter 3—Flow Projections.
Task 4DDConsultant Deliverables
l. Draft and Final TK4No. — Hydraulic Model Creation and[a|ibratinn.
2. Draft Chapter 3—Flow Projections.
3. ROC for Chapter 3—Flow Projections.
4. Meeting Agendas and Minutes.
Tbsk40DMeetings
l. Meeting No. 4—Hydraulic Model Creation.
2. Meeting No. 5— Hydraulic Model Calibration.
TASK 500 — EXISTING SYSTEM
The objective of this task b1osummarize the existing sewer system facilities and components including lift
stations, andinterties� This task inc| des the following activiti
es:TASK SOO ACTIVITIES
501. Meeting No.6 - 2013 Chapter Review. Facilitate a meeting to review and identify updates needed to
Chapter 4 — Existing System. A data request will be prepared based on the meeting.
502. Data Acquisition. A data request will be provided for required information for this task. The request may
include, but is not limited to, the following:
• Data onpipeline materials and age by|inearfont,asavailable.
° Existing renew and replacement program.
• Summary ofimprovements completed since the lOI3Plan.
w S[ADAdata for sewer system.
503. Update Existing Sewer System. Update the components of the major sewer collectorsand pump stations
using City provided information. This may include changes to boundaries of sewer service basins, lift stations and
force mains, and the totallength of pipe based on diameter and material. Summarize improvements to the City's'
wastewater collection system that have been completed since the 2013 Plan. Develop new system map.
504. Draft Chapter 4 — Existing System. Consultant will summarize the existing system in Chapter 4. An
electronic version of draft Chapter 4 will be sent to the City for review and address City comments in a comment
response log for the City's approval. Comments will be incorporated in to the Chapter as part of the City Review
Draft Plan.
Task800 Assumption
w City can provide elements listed under Task S02.
• This task will involve updating the chapterfmmthe 1013Plan.
• Nohard copy ofthe chapter will bedistributed.
Task 500'City Deliverables
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I. Requested Data
2. Comments on Chapter 4— Existing System.
Task 500Consultant Deliverables
I. Draft Chapter 4—Existing System.
2, ROC for Chapter 4—Existing System.
3. Meeting Agendas and Minutes.
4. System Map —Appendix E
Task B0Meetings
w Meeting No. 6-2Ul3System Review.
TASK 600 — CONVEYANCE SYSTEM ANALYSIS
The objective of this task is to evaluate the capacity of the conveyance system to convey existing and futureflows
during the Citv'sdesign storm. This task will form the basis for [hoptxrS'Conveyance System Analysis ofthe Plan.
The capacity assessment will be conducted for the collection system included in the hydraulic model and at lift
stations. This task will develop recommended improvements to the system in support of a CIP for 10-year and
build -out scenarios. This task includes the following activities.
TASK 50OACTIVITIES:
60I Collection System Analysis.After the model has been calibrated, the design storm will berouted through
the modeled collection system capacity to evaluate capacity during existing, 10-year and build -out conditions.
Evaluate capacity deficient segments and identify bottlenecks or other system limitations. Identify improvements
to resolve deficiencies using the hydraulic model. All improvements will be confirmed using the hydraulic model.
602. Lift Station Capacity Analysis. Evaluate the existing lift stations capacity based on flow estimates for the
design storm. The current performance of the existing lift stations, as provided by the City, will be compared to
the rmodeled peak flows toconfirm capacity during the existing, lO and build -out scenarios. Required
u pgra des/m odif I cations will be recommended, as necessary, to address lift station capacity deficiencies.
Gu3.Meeting No. 7'Capacity Analysis. Facilitate a meeting with City Staff to review the results of the collection
system and Lift analysis, aswell asinitial recommended improvements.
604. Lift Station Operational Analysis and Meeting No.8. Conduct a high-level evaluate up to three existing lift
stations operational and hydraulic performance to determine if improvements are needed to the Lift Stations.
The evaluation will focus on hydraulic capacity, redundancy, facility reliability, and operational considerations,
such as wet well sizing. Conduct a site visit of the selected Lift Stations (Meeting No. 8) to document existing
infrastructure (Assumed half day site visit). Formulate conceptual Alternatives to address identified issues.
Planning level Costs, technical considerations and operation and maintenance issues will be compared to develop
a recommended alternative. Results of this task will be incorporated into the CIP.
605. Draft Chapter 5 - Conveyance System Analysis. Chapter 5 will document the conveyance System analysis
including the recommended improvements to the system. It is assumed the efforts in this Task will require a
complete update of the Chapter with all new information. An electronic version of draft Chapter 5 will be sent to
the City for review and address City comments in a comment response log for the City's approval. Comments will
beincorporated intothe Chapter aspart ofthe City Review Draft Plan.
Task 60OAssumptions
* City can provide any data requested.
DRAFT' 19 Page12
64
° This task will require acomplete update ofthe Chapter with all new information.
• No hard copy of the chapter will be distributed.
Task 6O0City Deliverables
I. Requested Data.
l Comments nnChapter S—Conveyance System Analysis.
Task GODConsultant Deliverables
l. Draft[hapterS—ConveyanceSystesnAnolis.
Z. ROC for Chapter 5—Conveyance System Analysis.
3. Meeting Agendas and Minutes.
Task 600 Meeting
I Meeting No. 7—Conveyance System Analysis.
4. Meeting No. 8—Lift Stations Site Visit.
TASK 700 — OPERATION AND MAINTENANCE
The objective ofthis task istoassure satisfactory management nfsewer system operations. It will provide an
overview ofthe sewer system responsibility and authority, system operation and maintenance plan, equipment
supplies and inventory, and emergency response. The City may need to update its existing emergency response
plan that will be included as an appendix to the Comprehensive Plan. This task includes the following activities:
TASK 700 ACTIVITIES
701.Meeting No. 9—O&M Chapter ReviemFad|hoteameetingtnreviawandidentifyupdatesneededto
Chapter 6—OQM.Adata request will beprepared based on the meeting.
702. Data Acquisition. Data requests will be provided at the kick-off meeting and as needed throughout the
project. The City will provide:
• Copy nfthe organization chart.
w Copy ofthe FOG control program.
• Copy ofthe overflow emergency response plan.
• Current operations and maintenance program activities.
703. Collection System and Lift Station Condition and Maintenance Summary. The City's reported condition
and maintenance problems will be summarized. Review basins identified with high V|for potential causes nfV|
including a history of repairs, and pipe age and material. Discuss 1/1 causes with City operation staff. Review the
existing 1/1 program. Summarize completed projects. Identify or update 1/1 reduction goals. Document pipes with
known maintenance issues, such as accumulation of solids, FOG build up, or root intrusion. A GIS map will be
created, identifying the location of these pipe segments. General pipe replacement timing based on Remaining
Useful Life will be based on prior analyses. Document City concerns with condition or maintenance of Lift
Stations. No site visits will be completed during this task. information for this task will be provided by the City
electronically orduring Meeting No. 7.
704. Update Chapter 6 — Operations and Maintenance. Update Chapter 6 based on information provided by the
City. This may include updates to organization chart, certification, and collection system and lift station
maintenance, O&M program activities, and known major deficiencies in the City's operation and maintenance
DRAFT— Poee13
65
(O&K4)programs. This task does not include aFOG ordinance orprogran\over0mw emergencynspon»ep|a a
detailed O&M Manual, or maintenance management system. A detailed evaluation of City O&M prograM5 Will
not be conducted. An electronic version of draft Chapter 6 will be sent to the City for review and address City
comments in a comment response log for the City's approval. Comments will be incorporated in to the Chapter as
part ofthe City Review Draft Plan.
Task 70OAssumptions
w City can provide elements listed under Task 7O2.
* This task will involve updating the chapterfrom the 2UI3Plan.
° Nohard copy nfthe chapter will bedistributed.
Task 700City Deliverables
l. Requested Data from Task 7O2.
Z. Comments onDraft Chapter 6—Operations and Maintenance.
7ask7DDConsultootDekveozb6o
I. Draft Chapter 6—Operations and Maintenance.
Z. ROC for Chapter 6—Operations and Maintenance.
3. Meeting Agenda and Minutes
Task 700 Meetings
° Meeting No. 9—Z0l3Chapter Review.
TASK 800—CAPITAL IMPROVEMENT PLAN
This Task will summarize the recommended improvements for the conveyance system and lift stations 1n
accordance with the [ity'sPolicy and Criteria. This task will develop Chapter 7Capital Improvement Program for
the Plan. Total projectcostsvviUbedeve|opedfoveachusnmmendedimprovementandrankedbyphohty.This
task includes the following activities:
T45m80OA[TP/TIES
80I OP Projects.identify and describe OPprojects fnomphortasksandexisting[ityp|anning.Prepaea
description ofeach project.
802.Cost Estimates. Develop planning level cost estimates for all recommended projects usingcnstspmwidedin
other planning efforts. Cost estimates for construction, engineering, permitting, and other contingencies will be
prepared; all costs will begiven inZOI9dollars.
803. Prioritization. Prioritize condition -related and capacity -related projects identified inthe previous tasks for
inclusion inthe OPinto IOyear and long term scenarios
804. Meeting No. 10 — CIP Review. Facilitate a meeting with City staff to review and verify CIP projects, costs and
prioritization
8O5.Electronic QP. Develop an electronic CIP tool Using Excel to assist the City with future budgeting. Each
project will belisted onaseparate tab including project description, justification, estimated cost, and
recommended year for implementation. City staff will beprovided the ability toadjust indirect Costs and
escalation factors. Acopy ofthe electronic [|Pwill be provided to City staff. Hardcopies of the pnojectcut-sheets
will be included as an appendix. The Consultant will train City staff on Using the CIP Tool.
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66
806. Financial Summary. Summarize Sewer Utility financial information per WAC requirements. City to provide a
discussion cost per service in terms of both debt service and operation and maintenance costs, of all existing
facilities. [aro||owill estimate additional costs forfuture facilities recommended during the planning period. This
summary does not include an analysis of rates, connection charges, or methods to fund the recommended CIP.
807. Meeting No. 11 — Financial Review. Facilitate a meetings with City Staff to review the financial summary
and update priority of[|Pprojects, asrequired.
808. Draft Chapter 7. Prepare Chapter 7 Capital Improvements Plan, including description nfcost estimating
methods, project analysis, final recommendations, summary table, and system maps with the location of
recommended improvements. It is assumed the efforts in this Task will require a complete update of the Chapter
with all new information. An electronic version of draft Chapter 7 will be sent to the City for review and address City
comments in a comment response log for the City's approval. Comments will be incorporated in to the Chapter as
part of the City Review Draft Plan. This task assumes that no hard copy of the chapter will be distributed.
* City can provide any data requested.
m This task will require a complete update of the Chapter with all new information.
• Nohard copy ofthe chapter will bedistributed.
Task 800
I. Requested Data.
Z. Comments onChapter 7—Capital Improvement Plan.
Task B00Consultant Deliverables
1. Draft Chapter 7—Capital Improvement Plan.
2. ROC for Chapter 7— Capital Improvement Plan.
Task 800 Meetings
• Meeting No. IO—Capital Improvement Plan.
• Meeting No. II — Financial Review.
TASK 900 — PLAN PREPARATION
This Taskwill include the | of allprevious tasks. [andhowill prepare afina|Comprehensive SewePlan
that is the compilation of the chapters that have been created as a part of the project, with neVi5ionsbased nn
feedback provided bvthe City throughout the project. The Comprehensive Sewer Plan will comply with VVA[l73^
240'05O.Thistaskindudesthefu||nwingactivhiec
TASK 900 ACTIVITIES
901. Executive Summary. Carollo will prepare an executive summary, summarizing each element of the
Comprehensive Plan.
9OI.Prepare Staff Review Draft. Incorporate comments from draft chapters. Compile Chapters and develop
Technical Appendices. Prepare review draft document for City Staff in one (1) notebook binder copies and an
electronic copy.
903. Meeting No.12 — Staff Review Draft. Meet with City to discuss comments on the Staff Review draft Plan.
Comments tobeincorporated into SEPA/AgencyReview Draft.
DRAFT- Page15
67
904. Meeting No. 13— Council Review. Assist the City in presenting the findings of the Plan to Council. Carollo
will prepare a power point summarizing the Plan's key points and attend the Council session to support City Staff.
It is anticipated the Council presentation will be no longer than 30 minutes.
905. Prepare Agency Review Draft. Prepare three (3) hard copies and one electronic version for the Cityto
distribute for agency review. This task assumes the City will lead the Agency Review process. The City will
complete the SEPA review process and obtain approval during the Agency Review period. Caro||nwill assist City
in responding to written comments by regulatory agencies, neighboring jurisdictions, and the public, including no
more than three letters. No meetings are anticipated for this task. Additionally, no major plan revisions are
included inthe scope based onAgency Review comments.
906. Meeting No. 14 — Agency Review Comments. Meet with City to discuss comments on the Agency review
comments. Aresponse tocomment log will beformulated based onthe meeting.
907. Prepare Final Comprehensive Sewer Plan. Incorporate final comments based on agency reviews, as
requested by the City. Provide City with three (3) signed and stamped Final Comprehensive Sewer Plans and one
electronic version for the City's use. This task assumes only the documents above will be developed for the Plan
approval and any other interim draft plan documents are considered out of scope.
Task 9D0City Deliverables
I. City Comments.
Z. Public and Agency Review Comments.
Task 90DConsultant Deliverables
I. Executive Summary.
Z. City Draft Plan — One PDF.
l AgencyDraftP|an—ThreehardcopiesandonePQF.
4. Final Plan —Two hard copies and one PDF.
5. Comment Response Log.
Task800 Meetinqs
w Meeting No. ll—Staff Review Plan Review.
m Meeting No. I3—Council Review
• Meeting No. 14 —Agency Review Comments.
DRAFT- Page16
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68
'
Comprehensive Sanitary Sewer Plan
— � � '—�.
-_'.,
Meetings�� ��'^,'
Meeting No. l
Kick-off Meeting
Meeting No. 2
2013 Chapter 1 Review
Meeting No. 3
Demographic Analysis Meeting
Meeting No. 4 Flow Projections and I&I Evaluations
Meeting No. 5 Existing System Review
Meeting No. 6 System Analysis
Meeting No. 7 Operations and Maintenance Chapter Review
Meeting No. 8 Capital Improvement Plan
Meeting No. 9 Financial Review
Meeting No. IO
Plan Review
Comprehensive Sanitary Sewer Plan�'�,��`�
SUMMARY OF/
^
Deliverable'._~.~
'
I.
Project Management Plan
All Meeting Agendas &Minutes
Monthly Progress Reports (with invoices
Data Request Spreadsheet
Draft and ROC for Executive Summary
Draft Chapter and ROC for Chapter 1 — Introduction Revision of chapter from 2013 Plan
Draft Chapter and ROC for Chapter 2 — Demographic Analysis Full chapter update
Draft Chapter and ROC for Chapter 3 — Flow Projections Full chapter update
Hydraulic Model
New
Draft Chapter and ROC for Chapter 4 — Existing System Revision of chapter from 2013 Plan
Draft Chapter and ROC for Chapter 5—System Analysis Full chapter update
Draft Chapter and ROC for Chapter 6 — Operations & Maintenance, Revision of chapter from 2013 Plan
Draft Chapter and ROC for Chapter 7 —Capital Improvement Plan Full chapter update
City Draft Plan
Agency Draft Plan
Final Draft Plan & All Electronic Files
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69
70
EXHIBIT C, Cost Estimate
Water System Plan Update
TASK / DESCRIPTION
PM OM PE Staff Prof GIS WP
DLR LRK AT NLR Varies Varies
Total
Hours
Total Labor Rate $ 176 $ 226 $ 152 $ 132 $ 137 $ 95
Carollo Labor
Cost
OTHER DIRECT COSTS
Travel and
Printing
PECE
$12.00
Total ODC
TOTAL COST
Task 100 - Project Management
101
102
103
104
Monthly Progress Reports and Invoices
Project Management Plan
Meeting No. 1- Kick-off Meeting
Client Coordination
Subtotal - Task 100
36 9
3
3
36 9
78
18
0
5
4
0
18
2
1
21
63
10
45
126
10,080
1,378
1,151
$ 8,370
$ 20,979
- $ 756 $
$ - $ 120 $
$ 15 $
- $
96 $
540 $
756
120
111
540
15 $ 1,512 $ 1,527
10,836
1,498
1,262
8,910
22,506
Task 200 - Introduction
201 Meeting No. 2 - 2015 Chapter 1 Review
202 Data Acquisition
203
Revise Chapter 1- Introduction
3
2
4
4
4
4
1
2
10
7
1,151
1,428
894
15 $ 96 $
$ - $ 120 $
$ - $ 84 $
111
120
84
$ 1,262
1,548
978
204 Create New Chapter 3 - Policies and Criteria
Subtotal - Task 200
0
12
24
4
4
7
20
45
2,718
6,191
- $ 240 $
15 $ 540 $
240
555
2,958
6,746
Task 300 - Existing System
Meeting No. 3 - Existing System Chapter
301 Review
302 Data Acquisition
303
Revise Chapter 2 - Existing System
Subtotal - Task 300
3
1
2
6
1
0
4
4
4
1
8 6 4
16
10
8
9
21
38
1,151
1,252
$ 2,836
5,239
15 $ 96 $
108 $
252 $
15 $ 456 $
111
108
252
471
$
1,262
1,360
3,088
5,710
Task 400 - Demographic Analysis and Demand Pro
401
402
403
404
405
406
Data Request
Demographics Analysis
Demand Projections
Meeting No. 4 - Demographic Analysis and
Demand Projections
Demand Model
Create Draft Chapter4 - Demographic
Analysis and Demand Projections
Subtotal - Task 400
2
2
4
3
2
4
2
4
24
40
4
8
8
1
24 4 4
17 2 0 104 20
6
34
52
8
10
38
148
880
4,616
7,080
$ 1,151
1,408
5,252
20,387
$
15 $
72 $
408 $
624 $
96 $
$ - $ 120 $
- $ 456 $
72
408
624
111
120
456
15 $ 1,776 $ 1,791
952
$ 5,024
7,704
1,262
1,528
$ 5,708
$ 22,178
pw:\\IO-PW-INT.Carallo.local:CarollADocumentAClient\WA\TukwilA_Proposals\Tukwila WSP eudget.xlsx
City of Tukwila
December 2016
DRAFT
1 of 4
EXHIBIT C, Cost Estimate
Water System Plan Update
TASK / DESCRIPTION
PM QM PE Staff Prof GIS WP
DLR LRK AT NLR Varies Varies
Total
Hours
Total Labor Rate $ 176 $ 226 $ 152 $ 132 $ 137 $ 95
Carollo Labor
Cost
OTHER DIRECT COSTS
Travel and
Printing
PECE
$12.00 Total ODC
TOTAL COST
Task 500 - System Analysis
501
Data Request
1
2
3
440
$ 36 $
36
476
502
Update Hydraulic Profile
2
6
9
1,302
$ - $ 108 $
108
1,410
503
Water Right Self -Assessment
1
2
3
480
- $ 36 $ 36
$ 516
504
Desktop Analysis - Water Supply Analysis
1
2
3
480
- $ 36 $ 36
$ 516
505
Desktop Analysis - Storage Analysis
4 12
16
2,528
$ 192 $ 192
2,720
506
Desktop Analysis - Pump Station Analysis
1 2
3
480
$ - $ 36 $ 36
$ 516
507
Desktop Analysis - Limiting Factor Analysis
2 6
8
$ 1,264
- $ 96 $ 96
1,360
508
Meeting No. 5 - Desktop Analysis Workshop
3 3 4
1
11
$ 1,909
$ 15 $ 132 $ 147
2,056
509
Update Hydraulic Model/Calibration
4
36 8
49
$ 6,928
$ - $ 588 $ 588
7,516
510
Future Storage Location
16 2 8 40 8
74
10,860
$ - $ 888 $ 888
11,748
511
Fire and System Pressure Analysis
1 2 16 4
23
$ 3,288
276 $ 276
3,564
512
Identification of Wafer Improvement Projects
4 4
24 8
40
5,872
480 $ 480
6,352
513
Meeting No. 6 - System Improvements
Workshop
3
4
8
1,151
15 $ 96 $
111
1,262
514
Draft Chapter 5 - System Analysis
6 4 6 24 4 4
48
6,968
576 $
576
7,544
Subtotal - Task 500
19
146
38
6
298
43,950
30 $ 3,576 $
3,606
47,556
Task 600 - Water Use Efficiency
601
Data Acquisition
2
2
264
- $ 24 $
24
$
288
602
Revise Chapter 6 - Water Use Efficiency
2
16 2 4
25
$ 3,344
300 $
300
3,644
Subtotal - Task 600
2
0
18
2
4
27
3,608
324 $
324
3,932
Task 700 - Water Quality
701
Data Acquisition
2
2
$
304
$ - $ 24 $
24
328
702
Revise Chapter 7 - Water Quality
2 1 16
2
4
25
3,664
300 $
300
3,964
Subtotal - Task 700
18
0
2
4
27
3,968
324 $
324
4,292
Task 800 - Operation and Maintenance
801
Meeting No. 7 - Operation and Maintenance
Chapter Review
3
4
8
1,231
15 $ 96 $
111
1,342
802
Data Acquisition
2
3
480
36 $ 36
516
803
Summarize RUL
2
6
4
12
$ 1,812
- $ 144 $ 144
1,956
804
Revise Chapter 7 - Operation and
Maintenance
2 1 16 2 4
25
3,664
$ - $ 300 $ 300
$ 3,964
Subtotal - Task 800
28 0 6
7,187
15 $ 576 $ 591
7,778
pw:\\ID-PW-INT.Carollo.locakCarollo\ Documents \ Client\WA\Tukwila\_Proposals\Tukwila WSP Budget.xisx
City of Tukwila
December 2016
DRAFT
2 of 4
TASK / DESCRIPTION
EXHIBIT C, Cost Estimate
Water System Plan Update
PM QM PE Staff Prof GIS WP
DLR LRK AT NLR Varies Varies
Total Labor Rate $ 176 $ 226 $ 152 $ 132 $
37 $ 95
Total
Hours
Carollo Labor
Cost
OTHER DIRECT COSTS
Travel and
Printing
PECE
$12,00
Total ODC
TOTAL COST
Task 900 - Capital Improvement Plan
901
902
903
904
905
906
C!P Projects with Triggers
Cost Estimates
Prioritization
Electronic CIP
Meeting No. 8 - Capita! Improvement Plan
Create Draft Chapter9 - Capital
Improvement Plan
Subtotal-Task'900'
pw:\\IO-PW-INT.Carollo.local:CarolIADocuments\ Client\ WA\Tukwila`Proposals\Tukwila WSP Budget.zlsx
6
6
1
6 1
2
3
8
2
4
16
4
4 16 4
8 4
4
4
24 4 4
20
City of Tukwila
December 2016
31
31
19
14
11
42
4,550
4,550
$ 2,886
$ 1,956
1,829
5,956
21,727
372 $
$ 372 $
372
372
228 $ 228
$ 168 $ 168.
$ 15 $ 132 $ 147
504 $
1,776
504
4,922
4,922
3,114
2,124
1,976
6,460
21
DRAFT
3 of 4
EXHIBIT C, Cost Estimate
Water System Plan Update
TASK / DESCRIPTION
PM QM PE Staff Prof GIS WP
DLR LRK AT NLR Varies Varies
Total
Hours
Total Labor Rate $ 176 $ 226 $ 152 $ 132 $ 137 $ 95
Carollo Labor
Cost
OTHER DIRECT COSTS
Travel and
Printing
PECE
$12.00
Total ODC
TOTAL COST
Task 1000 - Financial Plan
10001
Meeting No. 9 - Financial Plan
3
3
1,206
15 $ 72 $
87
$
1,293
10002
Review and Format Draft Chapter 10 -
Financial Plan
Subtot
Task 1000
8
1
6
15
21
2,204
410
5
180 $
252 $
180
267
2,384
e77',
Task
00 - Plan Integration
1101
1102
1103
1104
1105
1106
Executive Summary
City Draft Plan
Meeting No. 10 - City Draft Plan
Agency Draft Plan
Meeting No. 11- Commission / Public
Review
Final Plan
Subtotal - Task
00
6
12 2 24 4 16
3
12 6
8
8
49
2
4
0
24 8 12
16
12
86
4
6
1
12
42
12
58
8
66
27
40
21
1,848
7,652
1,151
9,480
4,067
5,288
29,486
$ 144 $
- $ 696 $
144
696
$ 15 $ 96 $ 111
$ 1,500 $ 792 $ 2,292
15 $ 324 $
$ 1,000 $ 480 $
2
0
2
339
1,480
2 : $ 5,062
1,992
8,348
1,262
$ 11,772
$
4,406
6,768
4
pw:\\IO-PW-INT.Carollo.local;Carollo\Documents\Client\WA\Tukwila`Proposals\Tukwila WSP Budget.zlsx
City of Tukwila
December 2016
DRAFT
4of4
EXHIB|TA
CITY OFTUKW|LA
DRAFT SCOPE OFSERVICES
COMPREHENSIVE SANITARY SEWER PLAN
The fol lowing is a scope of work for the Corn pre hen5ive Sanitary Sewer Plan (Plan) for the City of Tukwila. The
Plan will becompleted bv[amUnEngineers. However, some tasks and task elements will require the participation
of City staff from the Planning, Finance, and Public Works Departments. This scope is developed to describe the
content and purpose of the Plan, determine tasks to be completed for the update of the previous plan, and
identify the resources necessary toaccomplish those tasks.
The Plan will bebased onthe Washington Administrative Code (VVAC)l73-24U'U50standards. The plan will
include afuture flow projections,system analysis, and acapital improvements plan (OP)for existing (Z0l9)/10-
year, and build -out scenarios. The 2013 Sewer System Plan Update (Carollo) will be used as the basis for this
scope ofwork.
PROJECT ASSUMPTIONS
l. [aroUoEngineers,|ncandhssubconsultantswW|berefenedtoas"[onsultant" in this document.
Z. The City ofTukwila and its staff will bereferred toas"[ity"inthis document.
3. All meetings will beheld atCity offices.
4` Draft Chapters will be provided in electronic copy (PDF and/or Microsoft Word) transmitted via email or
secure file transfer.
5. City comments on draft chapters will be documented in the Project Comment Response Log by the
Consultant. The Consultant will prepare responses to address the comments in the Comment Response
Log for the City's review and acceptance. Resulting changes will be incorporated in the Draft Agency
Review Plan, rather than reissuing a draftchapter at the time. However, revised draft chapters can be
produced upon City required.
G. The Consultant will prepare an agenda, presentation materials, and document discussions, including
action items and decisions, for Con5UItant-led meetings. Meeting notes and related materials will be
transmitted electronically in MSWord and PDFformats via email.
7. The City will print and produce additional copies of all documents as necessary for its use.
8' The City will provide available information related tothe project and asrequested bvthe Consultant ioa
timely manner. The City shall furnish Consultant available studies, reports, and other data pertinent to
Consultant's services, obtain, or authorize Consultant to obtain, or provide additional reports and data as
required; furnish to Consultant services Of Others required for the performance of Consultant's services
hereunder, and Consultant shall be entitles to Use and rely upon all such information and services
provided by the City or others in performing Consultant's services under this Agreement.
DRAFT 10/15/2019114,411� /2) 0, "9
Page
75
r reherrsive Sanitar' $ewe! Plan
RY OF CHAPTERS AND APPENDICES
Executive Summary
Consultant
Chapter 1: Introduction
Consultant
Chapter 2: Flow Monitoring
Consultant
Chapter 3: Flow Projections
Consultant
Chapter4: Existing System
Consultant
Chapter 5: System Analysis
Consultant
Chapter 6: Operations and Maintenance
Consultant
Chapter 7: Capital Improvement Plan
Consultant
Appendix A: State Environmental Policy Act Checklist and Determination of Non -Significance City
Appendix B: Agency Review and Comment Letters
City
Appendix C: Adopting Resolution
City
Appendix D: King County WTD Conveyance Agreement
Appendix E: System Map with Detailed Pipe
City
Consultant
TASKS
To meet the objectives of this Scope of Services, the Consultant shall complete the tasks as summarized in the
table below and discussed in detail in the text that follows.
Task 100
Project Management
Task 200
Introduction
Task 300
Flow Monitoring
Task 400
Flow Projections
Task 500 Existing System
Task 600 System Analysis
Task700 Operation and Maintenance
Task 800 Capital Improvement Plan
Task 900 Plan Preparation
The scope of services for the above project will consist of the following tasks.
TASK 100 — PROJECT MANAGEMENT
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pw://carollo/Documents/cli+nHwA/Tukwilai_Proposalsaukwila GSP scope
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76
This task includes routine management activities, submittal ofmonthly progress reports, and overall coordination
and assistance. It is anticipated that the Project will be complete by December 2020. Project timeline
modifications may require project hour and budget modifications. This task includes the following activities:
TASK 100 ACTIVITIES:
101. Monthly Progress Reports. This subtaskincludes production and implementation nfthe project plan,
schedule, and budget. Assist theprojectteammembersintheimplementationofthetaskitams, reviewing the
work -in -progress reports. Prepare and submit monthly activity reports showing current project status and
identifying key issues or elements of the project that will need to be addressed in the proceeding weeks. An
electronic version of the monthly progress reports will be sent to the City for review and approval. This task
assumes that no hard copy of the monthly progress reports will be distributed.
102 Project Management Plan. Prepare a Project Management Plan (PMP) that describes deliverables, Plan
outline, anticipated meetings, project roles and responsibilities, lists contact information forthe project team,
describes communications protocols, quality management, and includes the scope Of services, schedule, and
budget. Quality Management includes, but is not limited to, the following elements:
w Project Manager overview of all primary documents to verify technical consistency and compliance with
contract requirements.
m Organization of the work into logical deliverables with qualified staff for each task assigned to the work.
p Resolution of all review comments with a memorandum summarizing key comments and the manner in
which each was addressed inthe work.
An electronic version of the Project Management Plan will be sent to the City for review and approval. This task
assumes that oohard copy ofthe Project Management Plan will bedistributed.
103. Meeting No. I — Kick-off Meeting. Facilitate a kick-off meeting to review project management and initial
datarequests.
104.Client Coordination.
° Manage the consultant project team totrack time and budget, work elements accomplished, work items
planned for the next period, manpower, scope changes, time and budget needed tocomplete the project.
* Create and maintain a working project schedule based on the schedule in the PMP.
* Review project status,indud|ngscope,budget,andschedu|e.
7ask IOQAssumptions
w The PMP wi I I be updated with fu I I incorporation of review comments after the City review of the draft PMP.
* The total length ofthe project isI4months.
* City provides required documents for appendices.
Tosk2DO[/tv'Delivernb/es
I. Team member contact information.
2. PMPreview for completeness.
3. Receive, review, and process Consultant invoices inatimely manner.
4. Respond todata requests inatimely manner.
Task lDOConsultant Deliverables
I. Draft request list.
2. Draft Plan outline.
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3. DratPNYP.
4. Fina|PMP.
5. 14 monthly progress reports and invoices.
Task 100 Meetings
0 Meeting No. 1 —Kickoff Meeting.
TASK 200 — INTRODUCTION
This task includes basic information that will serve as a foundation for developing a comprehensive program to
meet current and projected future sewer system needs. This task will develop Chapter 1 Introduction. The task
includes the following activities:
TASK 200 ACTIVITIES
201. Meeting No. 2 - 2013 Chapterl Review. Facilitate a meeting to review and identify updates needed to
Chapter 1 — Introduction. This may include: related comprehensive sewer plans from the neighboring jurisdictions
and other related plans recent history of the City's sewer, system background; and policy and criteria. A data
request will beprepared based onthe meeting.
I03. Data Acquisition. Prepare a data request for the required information. The request may include, but is not
limited to, the following:
• Related comprehensive sewer plans from the neighboring jurisdictions and other related plans.
* Agreements with neighboring jurisdictions.
• Neigh boring/adjacent jurisdictions map, in Geographic Information System (GIS) format with current
boundaries.
w GIS data for the sewer system including City Limits, current sewer service area, urban growth area (UGA),
Autn[ADdata for existing facilities, and interties.
w Service and Fiscal Policies related to service area and conditions of service, in MS Word. It is assumed the
City will provide language for all requested changes to policies and criteria.
* Emergency Management goals, including redundancy and reliability standards related to System
components, ink8SWord.
w The standard plans and specification, in MS Word. It is assumed the City will provide its standard plans
and specifications for inclusion in the Plan.
2U3.Revise Chapter 1'Introduction. Prepare arevised Chapter l Introduction based onCity direction. |tis
anticipated that any revisions will be minor. An electronic version of draft Chapter I will be sent to the City for
review and Consultant will address City comments in a comment response (RCC) log for the City's approval.
Comments will be incorporated in to the Chapter as part of the City Review Draft Plan in Task 900.
Task 200Assumption
• City canprovide elements listed under Task lOI
* This task will involve updating the chapter fromthe 20l3Plan.
• No hard copy of the chapter will be distributed.
Task 200[h�De8*enzhtes
I. Requested Data from Task ZOI
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2. Comments on draft Chapter I — Introduction,
Tosk200[onsuitooCDe0vernbles
I. Draft Chapter I —Introduction.
I ROC for Chapter I —Introduction.
3. Meeting Agendas and Minutes.
Task.200 Meetings
TASK 3Q0—FLOW MONITORING
This Task will conduct and evaluate flow monitoring tpallow accurate estimates ofexisting and future system
flows so that the City can adequately plan to accommodate its future sewer needs. This task will include flow
monitoring of up to seven (7) locations by a Subconsultant. This task will be documented in TM No. I — Flow
Monitoring that will be included as an Appendix of the Plan. The task includes the following activities:
TASK 3OOACT|V[TE5
301. Review and Update Sewer Service Area and Basins. Review existing sewer service areaandbasinsbasedon
changes to parcels,collection system piping, and laterals information. It is anticipated the City will provide updated
information electronically. Update Sewer Basins and provide an updated map for City review and confirmation.
]O2.Identify Primary Collectors and Lift Stations. The will identify primary collectors and lift stations for
potential flow monitoring and inclusion in the hydraulic model (Task 600). It is anticipated the collectors will be
"ske|etnnized^tomn|yindodepipesgreaterthanlZ,inchandO-inchpipesneededtorepresentf|owcondidnnsfrom
sewer basins. To assist with future tasks, the City will need to provide invert elevations for the selected primary
collectors and information on Lift Stations.
303. Identify Flow Monitoring Locations. Identify recommended locations in install temporaryHmwmonitoring
devices in the gravity system at up five (5) locations to measure primary collectors and or Lift Stations south of I-
405.Anadditiona|twoG1flowmonitorsonprimarycoUectorsor|iftstatinns*iUbeaddednorthof1'406as'
directed by the City. Flow monitoring locations will be provided to the City to confirm their suitability for meter
installation.
304 - Flow Monitoring ADS will provide temporary flow monitoring services to Consultant to collect three (3)
months of flow data up to seven (7). After completion of the monitoring, ADS will provide a Rain Dependent
Inflow & Infiltration (RD]/1) Analysis and an electronic report. The work will be performed in three phases as set
forth below:
a. Phase I - Mobilization
z. Site Locations - ADS will work with the Consultant and the City to identify/verify the seven (7)
locations for monitor installations. Upon approval by the City, additional locations may be added per
the optional costs inthe budget.
z. Site Investigation Once the installation sites are provided to ADS, ADS field creW(5) Will perform
site investigations. ADS will utilize a standard two (2) person field crew forfieldwork and comply
with Federal standards for confined -space entry. The proposed flow monitoring location will be
located, inspected, and verified for hydraulic suitability. ADS will also check for debris inthe
manhole that could impact data quality and coordinate any required cleaning efforts with the City.
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ADS field crews will look for evidence and signs oferratic flow patterns. ADS will also investigate
adjacent manholes inorder toidentify the best monitoring locations.
3. Site Reports - Site reports will be generated upon completion of the site investigations. The site
reports will include a sketch of the general location, physical characteristics and diameters of the
proposed monitoring locations, manhole depths, flow measurements, and other comments
pertinent to the location such as any special traffic or safety issues. Final site locations to be
approved bythe Consultant.
4. Equipment - ADS will utilize wireless ADS@ Model Triton+"' flow monitors during the course of this
project. Atypical monitor installation will include anultrasonic depthsensorthatwiUbemountedat
the invert oƒthe pipe, aredundant pressure depth sensor; and aDoppler velocity sensor also
mounted a1ornear the invert.
5. Monitor Activation Once installed, the monitor will be activated and set to take readings at 5-
minute intervals. ADS Field crews will take manual depth readings with a ruler and velocity readings
with a portable, instantaneous velocity meter in order to confirm the monitor is collecting accurate
data based onthe actual existing hydraulic conditions ateach location.
b. Phase|| Flow Monitoring
i. Flow Monitoring Once the monitors are installed and verified tobe in working order, ADS will
monitorfor a period of four (4) calendar months ("monitoring period"). This initial monitoring period
can be extended based on mutual consent and written agreement of additional work and price for
such additional work. Anticipated flow monitoring locations are listed in Table i. Upon approval of
the City, the flow monitoring may be extended by up to two months per the optional costs in the
budget.
z. Data Collection and Equipment Maintenance ADS will collect data from each monitoring location
remotely using telemetry on a daily schedule (for sites with good wireless signa|).The ADS project
team will review the data weekly to ensure each monitor is running properly meeting the project
objectives as well ADS'standards. ADS Field Crews will perform site confirmations, site
maintenance which may include, cleaning the sensnr(s),moving, changing nrrep|adnganyfai|ed
component ateach monitor location.
3. Demobilization - Field crews will continue data collections and confirmations (as necessary) until the
end nfthe monitoring period. Once authorized, crews will immediately begin removing the flow
monitors and deliver final data tothe data analyst.
C. Phase III -QataEditing, Analysis and Reporting
z. Data Analysis Upon completion ofthe monitoring period, atrained ADS Data Analyst will begin tn
finalize the data collected for each monitoring location. The data analyst will directly calculate flow
using the continuity equation from recorded depth and average velocity data. Flow quantities as
determined bythe continuity equation will beplotted.
2. S|iyicerRDV|Ana|vsis For each of the flow monitoring location, the analysis Will characterize the
average dry weather flow conditions and RDI/I calculations for all significant wet weather events, an
assessment of hydraulic performance under such conditions. The results of dry weather and wet
weather performance will be plotted on maps of the sewer sheds to make it easier to understand
where RDI/l originates. The Sliicer.com section of the Report will include the following items:
w Dry WeatherAnalysis — A characterization of the conditions observed during weekday and
weekend periods of the flow monitoring period during dry weather periods, excluding periods of
extended system recovery to previous rain events. Summarized as a time -series hydrograph of
the average diurnal flow quantities for weekday and weekend dry weather periods.
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* Dry Weather Flow Summary —A table of the Average Dry Day Flow (ADD F) and an estimation of
Base Infiltration (80. Average dry weather diurnal patterns will beprovided for each flow
monitoring location during weekday and weekend portions of the monitoring period.
• Wet WeatherAnalysis — A characterization of the conditions observed during specific wet
weather events observed during the flow monitoring period, summarized as a time -series
hydrograph comparing observed flow quantities to average diurnal flow quantities for
corresponding weekday and weekend dry weather periods.
w Wet WeutherSummary— A characterization of the conditions observed during the maximum
rain event of the monitoring period. This can be summarized as the maximum 3o minute
average peaking factor observed during the flow monitoring period.
• W@tWeotherPrioritizotion—Aco|ornnchartoftheRoin Dependent Inflow/Infiltration (RD|/|)
determined for each flow monitoring location for each wet weather event. Column chart
provides a prioritized ranking based on net RDI/I (as percent rain ingress if basin acreages are
provided) or net RDI/I per linearfoot of sewer per inch of rain when linear footage information is
provided tnADS.
* Hydraulic Performance Evaluation — A narrative interpretation of hydraulic performance recorded
at each flow monitoring location as determined using a scattergraph of flow depth and velocity
data. The scattergraph interpretation shall evaluate the ability of each flow monitoring location
to accommodate flow quantities observed during dry weather and wet weather conditions
observed during the monitoring period.
�Data Delivery and TK4No. z—Flow Monitoring Summary ADS will prepare aFinal TK4toinclude
electronic data of the flow data in tabular, hydrograph, scattergraph, and a RDV|report inelectronic
format.
2. Meeting NO. o—Flow Monitoring Summary -Facilitate aworkshop with City Staff tmreview the
results and conclusions drawn from the flow monitoring.
3OS.Rainfall Data Review. Obtain and process hourly rainfall data corresponding to the monitoring period from the
NDAASEATA[Airport weather station.
3D6,Flow Monitoring Data Review. |tisanticipated that data will beavailable from optoseven (7)monitoring
locations for the 2019/2020 winter. The data quality for the events will be evaluated for each meter and reviewed
with the City. Flow monitoring data will also be reviewed to identify storm events that lead to wet weatherflows in
the collection system and are suitable for wet weather model calibration. The rainfall for these specific events will be
compared with the rainfall record to assess the individual storm sizes return periods. Ideally data will be available for
three to five storms. Wet weather flows, R-Factors and 1/1 rates will be calculated for each meter or SCADA source
for up to three storm events. The flow monitoring data analysis will result in modified wet weather modeling
parameters that will beused inthe hydraulic model.
3O7.Meeting No. 3'Flow Monitoring Review. Facilitate aworkshop with City staff toreview the findings ufthe
Flow Monitoring.
308. Draft Chapter 2 — Flow Monitoring. Consultant will summarize the results of the flow monitoring and data
review in Chapter 2: Flow Monitoring. It is assumed the efforts in this Task will require a complete update of the
Chapter with all new information. An electronic version of draft Chapter 2 will be sent to the City for review and
Consultant will address City comments in a comment response (ROC) log forthe City's approval. Comments will
beincorporated intothe Chapter aspart ofthe City Review Draft Plan inTask 9OU.
Task J0DAssumptions
m This task will require a complete update of the Chapter with all new information.
'
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* Nohard copy ofthe draft chapter will bedistributed.
Task 300CitVQelivembies
I. Requested
equese Data.
2. Review ufDraft TMNo.I—Flow Monitoring.
3. Review ufDraft Chapter 2—Flow Monitoring.
7osk3DO[onsu/tmntDe0vemb/es
l. Draft and Final Tk8No.I—Flow Monitoring.
Z. Draft Chapter I — Flow Monitoring.
3. ROC for Chapter Z—Flow Monitoring.
4. Meeting Agendas and Minutes.
Task J00Meetinqs
0 Meeting No. 3 — Flow Monitoring Review.
TASK 400 — FLOW PROJECTIONS
The objective ofthis task isto develop the sewer flow projections for the sewer service area for the current <2019\
IO-year,and build -out (maximum density) scenarios. Sewer flows will bebased onthe flow monitoring inTask
300 and the City's demographic projections. A new hydraulic model will be created and used to estimate future
wet weather flows. The model will include the developed area south of 1405 and up to two (2) sewer basins north
of4U5. This will not be an all pipe model of the system. The information developed in this task will become
Chapter 3~Flow Projections. This task includes the following activities:
TASK 4O0ACTIVITIES
401. Data Acquisition. Data requests will be provided atthe kick-off meeting and as needed throughoutthe
project. The City will provide:
° Current Nprogram.
* Summary ofNprojects completed since the 20I3Plan.
* Sewer connections bvcustomer class.
w Sewer conservation flow reduction rate.
• Map with direct connections toKing County wastewater System.
* Data on number, horsepower, capacity, design point for all pumps at the City's Lift Stations.
° Lift Stations run time.
* City Planning Department existing and future populations and employment based on PSRC's 2040 Vision
demographic projections and more current planning for the service area. These growth rates forthe 10-
year scenario will be consistent with the Comprehensive Water Plan.
• GIS Data: land use, zoning data within the City Limits, sewer service area and UGA. it is assumed that
these data will beprovided in G|Sformat.
° G|S Data: existing facilities (pipes,manholes, lift stations, connections with King County, etc.), and
interties.
82
4O2.Update Service Area, Land Use, and Zoning. Based onCity provided data, update mapping and
descriptions of existing and future service areas, land use, and zoning for the City Sewer Service Area. The Plan
will include both figures and text.
403. Demographic Projections. Allocate the existing and 10-year and build -out projection of sewered population
and employment provided by the City Planning Department to Sewer Basins. The 10-year growth rates will be
consistent with the Comprehensive Water Plan. The build -out projections are anticipated to be based on
Comprehensive Plan land use.
404. Design Storm. A design storm has been developed from a long term historical rainfall record at a number of
sites near the City. Rainfall data from the ongoing city monitoring program will be reviewed and evaluated to
determine if the design storm previously identified for wet weather flow modeling should be revised. The more
recent data will also be used to evaluate any local rainfall variability and trends. This review will be prepared to
provide the City with a defensible "Design" storm that emulates local weather patterns
405. Develop Existing Dry Weather Flows by Basin. Utilize existing land use maps to develop or confirm average
dry weather flows (ADWF) for the modeled sewer basins. The flows will be confirmed with the flow monitoring
data as well as the available flow data from the lift stations. Existing land use and currently served areas will be
used to estimate flow factors per acre per land use category. The flow factor will be customized to match the
observed existing ADWF and will be used to develop flow projections. For basins without measured flow data,
flow factors will be assigned from a measured basin with similar land use characteristics.
406.Deve|op 10-year and Build -out Dry Weather Flows by Basin. The City's comprehensive plan and any
additional information on housing densities, commercial and industrial uses will be used along with the flow
factors developed in the above task to determine the ultimate development acreage and the ADWF for build -out
conditions for uptosewer collection system.
4O7.Create Hydraulic NYode|.Usingthemostrecentinformationfnomthe[ity'sG|Sdata,createasevversystem
hydraulic model using Innovyze InfoSWMM software. The model will include the developed area south of 1405 and
up to two (2) sewer basins north of 405. The model will include lift stations and primary collectors, and does not
include the laterals, branches, or smallertruck sewers serving individual parcels within the basins. The City's
ex/stingG|SArcView`.'shp"fi|esvvi||beusedtoimporttheco||ectionsystemdata|ntothe'hydrau|icmode|.|fnot
available in the GIS, the City will provide invert elevations at key locations to construct the model. Add lift station
controls provided bythe City tosimulate realistic lift station operation. Estimate likely boundary conditions at
connections King County transmission mains, asrequired.
The up to seven (7) basins associated with flow monitoring will be further divided into mini -basins for sanitary and
wet weather loading in the model. These mini -basins will group parcels that contribute to common branches and
trunks, and will be connected to the modeled primary collector or lift station at the appropriate location.
408. Meeting No4 - Hydraulic Model Creation.. Facilitate a meeting with City staff to review and confirm the
elements of the hydraulic model. City staff may be requested to perform field verification of model elements
based onthis meeting.
409. Calibrate Existing Dry Weather and Wet Weather Flows. The existing dry and wet weather flows will be
calibrated based upon the flow monitoring data, and rainfall data provided by the City as well as additional data
available from the City's SCADA system for up to seven (7) locations in the collection system. Existing flow depths
and velocities will also bechecked and calibrated.
The first step istocalibrate the model todry weatherflowconditions. Flow monitoring data will provide custom
hourly diurnal curves that establish the daily flow patterns for each metering basin. Model results will be
compared tumeasured flows to check for agreement betwmodel results and measured flows. Model
parameters will be adjusted, as needed, to best match the flow monitoring and SCADA data. It is assumed that
the City will provide S[ADAdata 1nelectronic format.
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Once the dry weather caUbratjoniscomp|eted,thewetweathercaUbrationisconducted.RainfaUinfonnadonwiU
aid in developing the required rainfall -derived infiltration/inflow (RDI/1) estimations that enter the collection
system during a storm event. Wet weather calibration consists of using three storms that occurred during the flow
monitoring period. It is recommended that the use of a single calibration period incorporating a number of
independent rainfall events should be considered whenever possible. Model results will be reviewed and adjusted,
as.needed, tobest match the flow monitoring, rainfall and S[ADAdata.
The flows from unmetered basins will be developed as best possible using a mass balance between the available
data, and proportioned as best as possible based on development type, age, pipe material, and extent of
collection system components.
The hydraulic model will be calibrated in accordance with international modeling standards. The Urban Drainage
Group from the Chartered Institution of Water and Environmental Management (CIWEM) has established
generally agreed upon principles for model verification. The dry weather and wet weather calibration will focus on
meeting the recommendations on model verification contained in the "Code of Practice for the Hydraulic
Modelling of Urban Drainage Systems," published by CIWEM (November 2017).
410. Meeting No. 5 - Model Calibration. Consultant will conduct a workshop (Meeting No. 5)with the City to
summarize the model calibration results. Consultant will present the model calibration results for both dry and
wet weather scenarios. Summary tables will be presented that quantify the percent difference between the
measured data and the modeling results. Consultant will discuss calibration standards and confidence levels at the
workshop.
411. Hydraulic Model Creation and Calibration TM No.2. Consultant will summarize the model creation and
calibration in a Draft and Final TM. Anelectronic version ofdraft TMwill besent tnthe City for review and
address City comments in a Final TM that will be included as an Appendix to the Plan.
412. Develop Existing, 10-yearm and Build out Wet Weather Flow. The calibrated model will be used to
determine the existing, 10-year, and build out flows peak wet weather flows for the sewer service area. Wet
weather flows will bebased onthe selected design storm.
413. Reclaimed Water. As required by Ecology, reclaimed water opportunities will be updated. The City currently
usesrec|aimedvvaterfrom0ng[ounty's3outhTreatmentP|ant,The[ity'scorrentoseandpotentia|foture
customers will be summarized based on information provided by the City. No new analysis is anticipated for this
effort.
413. Draft Chapter 3 — Flow Projections. Consultant will summarize the sewer flow projections in Chapter 3: Flow
Projections. It is assumed the efforts in this Task wi I I require a complete update of the Chapter with a I I new
information. An electronic version of draft Chapter 3 will be sent to the City for review and address City comments
inacomment response log for the City's approval. Comments will be incorporated in to the Chapter as part of the
City Review Draft Plan.
Task 400Assumptions
* City can provide elements listed under Task 4OI.
• This task will require a complete update of the Chapter with all new information.
• Nohard copy ofthe draft chapter will bedistributed.
* The model will include the developed area south of 140S and the primary interceptors north of 405. This
will not be an all pipe model of the system.
Task 400OtyDelivmn/es
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l. Requested Data.
I Field verification nfmodel elements, asrequired.
l Comments pnTMNo. 2—Hydraulic Model Creation and Calibration
4. Comments onChapter ]— Flow Projections.
Task 4DD[mnsu/tuntDeliverables
L Draft and Final TMNo. 2—Hydraulic Model Creation and Calibration.
I Draft Chapter 3—Flow Projections.
1 ROC for Chapter 3—Flow Projections.
4. Meeting Agendas and Minutes.
Task 400 AlIeetincls
I. Meeting No. 4—Hydraulic Model Creation.
2. Meeting No. 5 —Hydraulic Model Calibration.
TASK 500 — EXISTING SYSTEM
The objective of this task is to summarize the existing sewer system facilities and components including lift
stations, and inter-tie5. This task includes the following activities:
501.Meeting No.6'2013 Chapter Review. Facilitate ameeting to review and identify updates needed to
Chapter 4 — Existing System. A data request will be prepared based on the meeting.
502. Data Acquisition. A data request will be provided for required information for this task. The request may
include, but $ not limited to, the following:
• Data onpipeline materials and age bylinear foot, asavailable.
w Existing renew and replacement program.
• Summary nfimprovements completed since the 2Ul3Plan.
• SCADA data for sewer system.
503. Update Existing Sewer System. Update the components of the major sewer collectors and pump stations
using City provided information. This may include changes tnboundaries ofsewer service basins, lift 5tadnnsand
force mains, and the total length of pipe based on diameter and material. Summarize improvements to the City's'
wastewater collection system that have been completed since the 2013 Plan. Develop new system map.
504. Draft Chapter 4 — Existing System. Consultant will summarize the existing system in Chapter 4. An
electronic version of draft Chapter 4 will be sent to the City for review and address City comments in a comment
response log for the City's approval. Comments will be incorporated in to the Chapter as part of the City Review
Draft Plan.
Task 500Assomptions
w City can provide elements listed under Task 5OI.
* This task will involve updating the chapter from the 2OI]Plan.
• Nohard copy ofthe chapter will bedistributed.
Task 500 Ci�y Deliverables
DRAFT Pagel1
85
l. Requested Data
2. Comments on Chapter 4— Existing System.
Task 50OConsultant Deliverables
I` Draft Chapter 4—Existing System.
l ROC for Chapter 4—Existing System.
I Meeting Agendas and Minutes.
4. System Map —Appendix E
Task 500 Meefin.05
TASK 600—CONVEYANCE SYSTEM ANALYSIS
The objective ofthis task is to evaluate the capacity of the conveyance system to convey existing and future flows
during the [ity'sdesign storm. This task will form the basis for [hopterS Conveyance System Analysis ofthe Plan.
The capacity assessment will be conducted forthe collection system included in the hydraulic model and at lift
stations. This task will develop recommended improvements to the system in support of a CIP for 10-year and
build -out scenarios. This task includes the following activities.
TASK' 6OO4[T|V|T|ES.
601. Collection System Analysis. After the model has been calibrated, the design storm will berouted through
the modeled collection system capacity to evaluate capacity during existing, 10-year and build -out conditions.
Evaluate capacity deficient segments and identify bottlenecks or other system limitations. Identify improvements
to resolve deficiencies using the hydraulic model. All improvements will be confirmed Using the hydraulic model.
602.Lift Station Capacity Analysis. Evaluate the existing lift stations capacity based on flow estimates for the
design storm. The current performance of the existing lift stations, as provided by the City, will be compared to
the modeled peak flows to confirm capacity during the existing, 10-year, and build -out scenarios. Required
upg ra des/m od ifi cations will be recommended, as necessary, to address lift station capacity deficiencies.
603. Meeting No. 7 - Capacity Analysis. Facilitate a meeting with City Staff to review the results of the collection
system and Lift analysis, aswell asinitial recommended improvements.
6O4.Lift Station Operational Analysis and Meeting No.O. Conduct ahigh-level eva|uateoptothreeexisting|ift
stations operational and hydraulic performance to determine if improvements are needed to the Lift Stations.
The evaluation will focus on hydraulic capacity, redundancy, facility reliability, and operational considerations,
such as wet well sizing. Conduct a site visit of the selected Lift Stations (Meeting No. 8) to document existing
infrastructure (Assumed half day site visit). Formulate conceptual Alternatives to address identified issues.
Planning level costs, technical considerations and operation and maintenance issues will be compared to develop
arecommended alternative. Results ofthis task will beincorporated into the [|P.
605. Draft Chapter 5 - Conveyance System Analysis. Chapter 5 will document the conveyance system analysis
including the recommended improvements to the system. It is assumed the efforts in this Task will require a
complete update of the Chapter with all new information. An electronic version of draft Chapter 5 will be sent to
the City for review and address City comments in a comment response log for the City's approval. Comments will
beincorporated intothe Chapter aspart ofthe City Review Draft Plan,
Tosk6DUAssompbons
° City can provide any data requested.
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m This task will require acomplete update ofthe Chapter with all new information.
• No hard copy of the chapter will be distributed.
Task 6000t/Delivanb&s
l Requested Data.
2. Comments onChapter 5—Conveyance System Analysis.
Task 600[onsodontDeliverables
l. Draft Chapter 5—Conveyance System Analysis.
2. ROC for Chapter 5—Conveyance System Analysis.
3. Meeting Agendas and Minutes.
Task 600 MeetincLs
I Meeting No. 7—Conveyance System Ana|ysis.
4. Meeting No. 8—Lift Stations Site Visit.
TASK 700 — OPERATION AND MAINTENANCE
The objective ofthis task is toassure satisfactory management ofsewer system operations. It will provide an
overview ofthe sewer system nsponsibUitVandaVthority system operation and maintenance plan, equipment
supplies and inventory, and emergency response. The City may need to update its existing emergency response
plan that will be included as an appendix to the Comprehensive Plan. This task includes the following activities:
TASK 700 ACTIVITIES
701. Meeting No. 9 — O&M Chapter Review. Facilitate a meeting to review and identify updates needed to
Chapter 6—O&K8.Adata request will beprepared based onthe meeting.
702. Data Acquisition. Data requests will be provided at the kick-off meeting and as needed throughout the
project. The City will provide:
* Copy ofthe organization chart.
* Copy ofthe FOG control program.
* Copy ofthe overflow emergency response plan.
° Current operations and maintenance program activities.
703. Collection System and Lift Station Condition and Maintenance Summary. The City's reported condition
and maintenance problems will be summarized. Review basins identified with high 1/1 for potential causes of 1/1
including a history of repairs, and pipe age and material. Discuss 1/1 causes with City operation staff. Reviewthe
existing |/| program, Summarize completed projects. Identify orupdate |/| reduction goals. Document pipes with
known maintenance issues, such as accumulation of solids, FOG build up, or root intrusion. A GIS map will be
created, identifying the location of these pipe segments. General pipe replacement timing based on Remaining
Useful Life will be based on prior analyses. Document City concerns with condition or maintenance of Lift
Stations. No site visits will be completed during this task. Information for this task will be provided by the City
electronically orduring Meeting No. 7.
704. Update Chapter 6 — Operations and Maintenance. Update Chapter 6 based on information provided by the
City. This may include updates to organization chart, certification, and collection system and lift station
maintenance, O&M program activities, and known major deficiencies in the City's operation and maintenance
DRAFT 'IO/15/2OlglO/14�,-129�4-9 Page13
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87
(O&M)programs. ThistaskdoesnotindodeaFOGordhnanceorpnogr n\ovedlmwemergencynsponsep|an,a
detailed O&M Manual, or maintenance management system. A detailed evaluation of City O&M programs will
not be conducted. An electronic version of draft Chapter 6 will be sent to the City for review and address City
comments in a comment response log for the City's approval. Comments will be incorporated in to the Chapter as
part ofthe City Review Draft Plan.
Task 7D0�zsompbons
w City can provide elements listed under Task 782.
• This task will involve updating the chapter from the 2Ql3Plan.
* Nohard copy ofthe chapter will bedistributed.
7ask7}U City— De8vero6lec
1. Requested Data from Task 702.
2. Comments on Draft Chapter 6 —Operations and Maintenance.
Task 700 Consultant Deliverobles
1. Draft Chapter 6—Operations and Maintenance.
I ROC for Chapter 6—Operations and Maintenance.
3. Meeting Agenda and Minutes
Tosk 7,90 Meetinas
TASK 800— CAPITAL IMPROVEMENT PLAN
This Task will summarize the recommended improvements for the conveyance system and lift stations in
accordance with the City's Policy and Criteria. This task will develop Chapter 7 Capital Improvement Program for
the Plan. Total project cogsvviUbedeve|opedforeachnecommended|mpmvementandnankedbypriority.This
task includes the following activities:
TASK 800 ACTIVITIES
8Ol.C|PProjects. Identify and describe OPprojects from prior tasks and existing City planning. Prepare a
description ofeach project.
OUI. Cost Estimates. Develop planning level cost estimates for all recommended projects using costs provided in
other planning efforts. Cost estimates for construction, engineering, permitting, and other contingencies will be
prepared; all Costs will begiven in2OI9dollars.
803.Prioritbation. Prioritize condition -related andcapodty're|atedprojectsidentifiedinthepreviou»tasksfor
inclusion inthe [|Pinto lOyear and long term scenarios
804. Meeting No.10 — CIP Review. Facilitate a meeting with City staff to review and verify CIP projects, costs and
prioritization
805.Electronic [|P. Develop an electronic CIP tool using Excel to assist the City with future budgeting. Each
project will be listed on a separate tab including project description, justification, estimated cost, and
recommended year for implementation. City staff will be provided the ability to adjust indirect costs and
escalation factors. A copy of the electronic CIP will be provided to City staff. Hardcopie5 of the project cut -sheets
will be included as an appendix. The Consultant will train City staff on Using the CIP Tool.
DRAFT-lO/15/2O Pagel4
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88
806. Financial Summary. Summarize Sewer Utility financial information per WAC requirements. City to provide a
discussion cost per service in terms of both debt service and operation and maintenance costs, of all
facilities. Carollo will estimate additional costs for future facilities recommended during the planning period. This
summary does not include an analysis of rates, connection charges, or methods to fund the recommended CIP.
8O7.Meeting No. lI—Financial Review. Facilitate ameetings with City Staff toreview the financial summary
and update priority ofC|Pprojects, asrequired,
808. Draft Chapter 7. Prepare Chapter 7 - Capital Improvements Plan, including a description of cost estimating
methods, project analysis, final recommendations, summary table, and system maps with the location of
recommended improvements. It is assumed the efforts in this Task will require a complete update of the Chapter
with all new information. An electronic version of draft Chapter 7 will be sent to the City for review and address City
comments in a comment response log for the City's approval. Comments will be incorporated in to the Chapter as
part of the City Review Draft Plan. This task assumes that no hard copy of the chapter will be distributed.
Task 800Assmnotion
° City can provide any data requested.
* This task will require a complete update of the Chapter with all new information.
° Nohard copy ofthe chapter will bedistributed.
Task 800OtvDeliverables
I. Requested Data.
Z. Comments unChapter 7—Capital Improvement Plan.
Task 800[onsoltont 1--je8vera6&s
I. Draft Chapter 7— Capital Improvement Plan.
2ROC for Chapter 7 — Capital Improvement Plan.
Task 300 Meetinqs
• Meeting No. IV —Capital Improvement Plan.
* Meeting No. lI—Financial Review.
TASK 900 — PLAN PREPARATION
This Task will include the compilation of all previous tasks. Carollo will prepare a final Comprehensive SewerPlan
that is the compilation of the chapters that have been created as a part of the project, with revisions based on
feedback provided bythe City throughout the project. The Comprehensive Sewer Plan will comply with VVA[I73'
240'050.Th|staskindudesthefn||om/ingactiyities:
TASK 9O0ACTIVITIES
901.Executiv Summary. Carollo will prepare an executive summary, summarizing each element of the
Comprehensive Plan.
902. Prepare Staff Review Draft. Incorporate comments from draft chapters. Compile Chapters and develop
Technical Appendices. Prepare review draft document for City Staff inone (l) notebook binder copies and an
electronic copy.
903. Meeting No. 13—Staff Review Draft. Meet with City todiscuss comments onthe Staff Review draft Plan.
Comments tobeincorporated into SEPA/AgencyReview Draft.
DRAFT 'IO/1S/IOlg��41-1/201g pa8e1S
89
9O4.Meeting No. I3—Council Review. Assist the City inpresenting the findings ofthe Plan toCouncil. [amUo
will prepare a power point summarizing the Plan's key points and attend the Council session to support City Staff.
|tisanticipated the Council presentation will benolonger than ]Ominutes.
905. Prepare Agency Review Draft. Prepare three (3) hard copies and one electronic version for the City to
distribute for agency review. This task assumes the City will lead the Agency Review process. The Citywill
complete the SEPA review process and obtain approval during the Agency Review period. Carollo will aS5i5t City
in responding to written comments by regulatory agencies, neighboring jurisdictions, and the public, including no
more than three letters. No meetings are anticipated forthis task. Additionally, no major plan revisions are
included inthe scope based nnAgency Review comments.
906. Meeting No. 14 — Agency Review Comments. Meet with City to discuss comments on the Agency review
comments. A response to comment log will be formulated based on the meeting.
907. Prepare Final Comprehensive Sewer Plan. Incorporate final comments based on agency reviews, as
requested by the City. Provide City with three (3) signed and stamped Final Comprehensive Sewer Plans and one
electronic.version forthe City's use. This task assumes only the documents above will be developed for the Plan
approval and any other interim draft plan documents are considered out of scope.
Task 900 0�y Deliverables
I. City Comments.
2, Public and Agency Review Comments.
Task
l. Executive Summary.
2. City Draft Plan —One PDF.
I AgencyDraftP|an—ThreehandcopiesandonePDF.
4. Final Plan —Two hard copies and one PDF.
5. Comment Response Log.
��900.,Vh:cting
w Meeting No. l2—Staff Review Plan Review.
* Meeting No. ]3—Council Review
° Meeting No. l4—Agency Review Comments.
DRAFT lO/15/2O1 Page16
ofl7
90
Meeting No. 1
iprehe tv � a a6t
SI',tfl f±d ARY OF ME
Kick-off Meeting
Meeting No. 2
2013 Chapter 1 Review
Meeting No. 3
Demographic Analysis Meeting
Meeting No. 4 Flow Projections and I&I Evaluations
Meeting No. 5 Existing System Review
Meeting No. 6 System Analysis
Meeting No. 7 Operations and Maintenance Chapter Review
Meeting No. 8 Capital Improvement Plan
Meeting No. 9 Financial Review
Meeting No. 10 Plan Review
he 5ry We
il�tiAf?OF If.�VE A8I
iDe�verale
Project Management Plan
0
a
c
All Meeting Agendas & Minutes
Monthly Progress Reports (with invoices)
Data Request Spreadsheet
Draft and ROC for Executive Summary
Draft Chapter and ROC for Chapter 1— Introduction Revision of chapter from 2013 Plan
Draft Chapter and ROC for Chapter 2 — Demographic Analysis Full chapter update
Draft Chapter and ROC for Chapter 3 — Flow Projections Full chapter update
Hydraulic Model
New
Draft Chapter and ROC for Chapter 4 — Existing System Revision of chapter from 2013 Plan
Draft Chapter and ROC for Chapter 5 —System Analysis Full chapter update
Draft Chapter and ROC for Chapter 6 — Operations & Maintenance Revision of chapter from 2013 Plan
Draft Chapter and ROC for Chapter 7 —Capital Improvement Plan Full chapter update
City Draft Plan
Agency Draft Plan
Final Draft Plan & All Electronic Files
DRAFT - 1O/15/2O154:04 4
Page 17
of 17
pw://Carollo/Documents/Client/WA/Tukwila/_Proposals/Tukwila_GSP_Scope
91
92
EXHIBIT C, Cost Estimate
Comprehensive Sewer System Plan
TASK / DESCRIPTION
PM
DLR
QM
LRK
PE
AMT
Staff Prof
MMIJS
GIS
Varies
WP
Vanes
Total
Hours
Carollo Labor
Cost:
Sub Total Sub
Cost Markup @ Total Cost
10%
OTHER DIRECT COSTS
TOTAL COST
PECE
Travel and
Printing
$12.00 Total ODC
Total Labor Rate $ 176
$ 226
$ 155
$ 132
$ 137
$ 95
Task 100 - Project Management
101
Monthly Progress Reports and Invoices
28
7
14
14
63
$ 10,010
$ - $ - $ -
$ - $ 756 $ 756
$
102
Project Management Plan
2
6
4
14
$ 1.972
$ - $ - $ -
$ - $ 168 $ 168
10,766
$
103
Meeting No. 1- Kick-off Meeting
3
3
4
2
12
$ 1,711
$ - $ - $ -
5 50 $ 144 $ 194
2.140
5
104
Client Coordination
28
7
0
35
5 6,510
$ - $ - $ -
$ • $ 420 $ 420
1,905
Subtotal -Task 100
61
14
2$
4
J:0
201.
124
0J 20,203
S = S =:: $ -
# '50: $ 1,488 $ 'i;638
$ 6,930
$
Task 200 -Introduction
-: 21,741:.
201
Meeting No. 2 2013 Chapter 1 Review
3
4
2
9
$ 1,246
$ - $ -. $ -
5 50 $ 108 $ 158
$
202
Data Acquisition.
1
8
4
13
$ 1,780
$ - $ - $ -
$ - 5 156 $ 156
1,404
$ 1,936
203
Revise Chapter 1- Introduction
1
1
8
4
14
$ 1,838
$ - $ -. $ -
$ - 5 168 $ 168
$ 2.008
Subtotal -Task 100
5
1'
0
29
:4
6
36
$.. 4,864'.
S - $ -::. $ -
# 50, $ 432 # 402
S 5,346
:',
Task 300 - Flow Monitoring
301
Review and Update Sewer Service Area
and Basins
1
1
4
4
4
14
$ 2,098
$ - $ - $ -
$ - $ 168 $ 168
$
302
Identify Primary Collectors and Lift Stations
1
2
e
4
15
$ 2,090
$ - 5 - $ -
$ -. $ 180 $ 180
2,266
5. 2,270
303
Identify Flow Monitoring Locations
1
4
2
7
$. 1,070
$ - 5.. - $ -
5 - $ 84 $ 84
$
304
Flow Moniton`ng
8
1
4
2
15
$ 2,528
5 40,534 $ 4,053 $ 44,587
$ - $ 180 $ 180
1,154
$
305
Rainfall Data Review
1
4
5
5 683
$ - $ - $ -
$ - $, 60 $ 60
47,295
$
306
Flow Monitoring Data Review
2
4
15
21
$ 2,952
$ - $ - 5 -
$: - $ 252 $ 252
743
307
Meeting No. 3- Flow Monitoring Review
3
3
6
12
$. 1,785,
5 - $ - $ -
$ 50 5 144 $ 194
$ 3,204
$
308
Draft Chapter 2 - Flow Monitoring
2
1
4
16
4
4
31
$ 4,238
$ - $ - $ -
$ - $ 372 $ 372
1,979
$
Subtotal: -Task 200
10
3.
25
53
16
4
i20
S: 17A44.
$ 40,534 5 4,053; S 44,5$7
$ 5tt. $ 1,440'. $ 1490
4,610.
$ 63,521
Task 400 - Flow Projections
401
Data Acquisition
4
6
4
14
$ 2,044
$ - 5 - $ -
$ - $ 168 $ 168
402
Update Service Area, Land Use, and
Zoning
2
8
6.
16
$ 2,230
$ - $ - $ -
$ - $ 192 $ 192
$ 2,212
403
Demographic Projections
4
1
16
4
25
$ 3,590
$. - $ - $. -
$ - $ 300 $ 300
$ 2,422
$
404
Design Storm
1
1
4
8
14
$ 2,078
$ $ - $ -
$ 168 $ 168
3,890
$
405
Develop Existing Dry Weather Flows by
Basin
1
1
8
24
6
40
$ 5,632
$ - $ - 5 -
$ - $ 480 $ 480
2,246
$
406
Develop 10-year and Build -out Dry
Weather Flows by Basin
1
1
8
24
8
42
$ 5,906
$ - 5 - $ -
$ - $ 504 $ 504
6,112
407.
Create Hydraulic Model
1
2
12
40
16
71
$ 9,960
$ - $ - $ -
$ - $ 852 $ 852
$ 6,410
$
408
Meeting No, 4 - Hydraulic Model Creation
3
3
6
4
2
18
5 2,523
$ - $ - $ -
$ 50 $ 216 5 266
10,812
$ 2,789
409
Calibrate Existing lky Weather and Wet
Weather Flows
4
2
16
52
,4
78
$ 11,048
$ - $ - $ -
$ - $ 936 $ 936
$ 11,984
410
Meeting No. 5-Mode/Calibration
3
3
4
2
12
$ 1,711
$ - $ - $ -
$.. 50 $ 144 $ 194.
$
411
Hydraulic Model Creation and Calibration
TM No. 2
4
8
24
4
4
44
$ 6,040
$ -. $ - 5 -
: $ - $ 528 $ 528
1,905
$
412
Develop Existing, 10-year, and Build -out
Wet Weather Flow
1
1
4
16
2
24
$ 3,408
$ - $ - $ -
$ - $ 288 $ 288
6,568
$
413
Reclaimed Water
5
1
12.
19
S 2,866
$ - $ - $ -
$ - $ 228 $ 228
3,696
$ 3,094
414
Draft Chapter 3 - Flow Projections
4
2
6
24
6
4
46
$ 6,456
$ - $ - $ -
$ - $ 552 $ 552
Subtotal -Task 400
'.f 39
12S
72
;' 264
164
12 :
463
$t 65A92:
$ - $ - $ -
$ 100r: $ 5,555'. $ '5,556
$ 7,008
$ f: 71,148
City of Tukwila
October 2019
DRAFT
1 of
EXHIBIT C, Cost Estimate
Comprehensive Sewer System Plan
TASK I DESCRIPTION
PM
DLR
QM
LRK
PE
AMT
Staff Prof
MM/JS
GIS
Varies
WP
Varies
Total
Hours
Carolto Labor
Cost
Sub
Sub Total
Cost Markup @ Total Cost
10°.0
OTHER DIRECT COSTS
TOTAL COST
PECE
Travel and
Printing
§12.00 Total ODC
Total Labor Rate $ 176
$ 228
$ 155
$ 132
$ 137
$ 95
Task 500 - Existing System
501
Existing Chapter Review Meeting No. 4
3
4
7
$ 1,056
5 - 5 - $ -
$ 50 $ 84
$ 134
5 1,190
502
Data Acquisition
1
4
4
9
5 1,252
5 - $ - $ -
$ - $ 108
$ 108
$ 1,360
503
Update Existing Sewer System
1
8
4
13
5 1,780
$ - $ - $ -
$ - $ 156
§ 156
5 1,936
504
Revise Chapter 4 - Existing System
2
1
0
6
4
4
19
$ 2,562
$ - $ - $ -
$ - $ 228
$ 228
$ 2,790
Subtotal - Task 400
7
1
0
24
12
4
48
$ 6,650
$ - $ - $ -
$ 50 $ 576
$ 626
$ 7,276
Task 600 - Conveyance System Analysis
601
Collection System Analysis
2
2
8
40
8
60
5 8,420
$ - $ - $ -
$ - $ 720
$ 720
$ 9,140
602
Lift Station Capacity Analysis
2
2
24
24
8
60
$ 8,788
$ - $ - $ -
$ - $ 720
$ 720
$ 9,508
603
Meeting No. 7- Capacity Analysis
3
3
4
10
$ 1,521
$ - 5 - $ -
$ 50 3 120
$ 170
$ 1,691
604
Draft Chapter 5 - Conveyance System
Analysis
2
2
6
24
4
4
44
$ 6,140
$ - $ - $ -
$ - $ 528
$ 528
$ 6,668
Subtotal-Task600
9
6
43
92
20
4
174
$ 24,869
5 - $ - 9 -
$ 50 $ 2,088
$ 2,138
$ 27,007
Task 700 - Operation and Maintenance
701
Meeting No. 8- O&M Chapter Review
3
4
2
9
$ 1,246
$ - $ - $ -
$ 50 $ 108
$ 158
$ 1,404
702
Data Acquisition
1
2
3
§ 440
$ - $ - $ -
$ - $ 36
$ 36
$ 475
703
Collection System and lift Station
Condition and Maintenance Summary
4
16
4
24
$ 3,364
5 - $ - $ -
$ - $ 288
$ 288
$ 3,652
704
Draft Chapter 6 - Operations and
Maintenance
2
1
16
4
4
27
$ 3,618
5 - $ - $ -
$ - $ 324
$ 124
$ 3,942
Subtotal - Task 600
10
1
0
38
8
6
63
$ 8,668
$ - $ - $ -
$ 50 5 756
$ 806
$ 9,474
Task 800 - Capital Improvement Plan
801
CIP Projects with Triggers
2
1
4
16
4
27
$ 3,858
$ - $ - $ -
$ - 5 324
$ 324
$ 4,182
802
Cost Estimates
2
4
8
16
4
34
$ 5,156
S - 5 - $ -
$ - $ 408
$ 408
$ 5,564
803
Prioritization
2
1
4
8
4
19
5 2,802
$ - $ - $ -
$ - $ 228
$ 228
$ 3,030
804
Meeting Na. 9 - CIP
3
4
2
9
$ 1,246
$ - $ - $ -
$ 50 $ 108
$ 158
$ 1,404
805
Electronic CIP
2
24
8
34
5 4,616
$ - 5 - $ -
$ - $ 408
$ 408
$ 5,024
806
Financial Summary
4
1
24
29
$ 4,098
$ - $ - 5 -
$ - $ 348
$ 348
$ 4,446
807
Meetings No. 10- Financial Review
3
4
7
$ 1,056
$ - 5 - $ -
5 50 $ 84
$ 134
5 1,190
808
Draft and Final Chapter 7 - Capital
Improvement Plan
4
2
2
24
4
4
40
5 5,562
$ - $ - $ -
5 - $ 480
$ 480
$ 8,042
Subtotal -Task 700
22
9
18
120
24
6
199
$ 28,394
5 - $ - $ -
$ 100 $ 2,388
$ 2,488
$ 30,882
Task 9 0 - Plan Preparation
901
Executive Summary
6
6
12
$ 1,848
$ - $ - $ -
$ - $ 144
$ 144
$ 1,992
902
Prepare Staff Review Draft
8
4
4
24
4
24
68
$ 8,928
$ - $ - $ -
$ 35 5 816
$ 851
$ 9,779
903
Meeting No. 11-Staff Review Draft
3
4
2
9
$ 1,246
$ - 5 - $ -
$ 50 $ 108
$ 158
$ 1,404
904
Meeting No. 12 - Council Review
8
2
16
1
27
$ 4,067
$ - 5 - 5 -
$ 50 $ 324
$ 374
$ 4,441
905
Prepare Agency Review Draft
12
6
4
24
a
24
78
$ 10,632
5 - $ - $ -
$ 1,000 $ 936
$ 1,936
$ 12,568
906
Meeting No. 13 - Agency Review
Comments
3
4
2
9
$ 1,246
$ - $ - $ -
$ 50 $ 108
$ 158
$ 1,404
907
Prepare Final Comprehensive Sewer Plan
8
8
4
12
4
24
60
$ 8,248
$ - $ - $ -
$ 1.000 $ 720
5 1,720
5 9,968
Subtotal - Task 800
48
20
12
90
16
77
263
$ 36,215
$ - $ - $ -
$ 2,185 $ 3,156
5 5,341
5 41,556
T0891
215..
.: 57
196"
.' T05
164
.'139
1400
$ 212,799
$ 40,534 ', $ "4,052" . $ 44;5E7-
$" 2,655 $ 17,590
$ 20,50$
"5 271,051
City of Tukwila
October 2019
DRAFT
2 ot2
Transportation & Infrastructure Committee Minutes 0ctobe/22,2019
C. DemolitionAgreement: Public Safety Plan - Public Works Shops Phase I
Staff is seeking Council approval of Change` Order No. 5 to Contract I8-00I with Lvdi
Construction in the amount of $73,707 for demolition of the Lifestyles landscape building and
the former coffee shop building on the new Public Works shops site. Committee members
decided toforward this toCommittee ofthe Whole with norecommendation asitreiatestothe
overall Public Works Master Plan. NO RECOMMENDATION. FORWARD TOOCT40BER 28,2019
COMMITTEE OF THE WHOLE,
D. Consultant Contract: VVater&Sewer Comprehensive Plans
Staff is seeking Council approval of a contract with Caroiko Engineers in the amount of
$460,392.00 to update the Water and Sewer Utilities Comprehensive Plans. The Washington
State Department UfHealth requires the update every six years and [anoliocompleted the last
update in2Ol5't56O,0U0was budgeted. UNANIMOUS APPROVAL. FORWARD TO NOYyEMBE0i
4,2Q^REGULAR CONSENT AGENDA.
UU. MISCELLANEOUS
The Transportation & Infrastructure Committee Meeting adjourned at 6:40 p.m.
95