HomeMy WebLinkAbout2014-135 Council ResolutionCITY OF LINO LAKES
RESOLUTION NO. 14-135
RESOLUTION APPROVING PROFESSIONAL SERVICES CONTRACT FOR
MUNICIPAL WATER SYSTEM MODELING
WHEREAS, the City is responsible for maintaining their water system effectively, and providing
municipal utilities to proposed developments which are in accordance with the City's
comprehensive land use plan; and
WHEREAS, water system modeling is used to efficiently manage system performance, operations,
and planning; and
WHEREAS, WSB & Associates, Inc. is the City's consulting engineer,
NOW, THEREFORE, BE IT RESOLVED by The City Council of The City of Lino Lakes,
approves the Professional Services Contract with WSB & Associates, Inc for WaterCad Water
System Modeling and authorizes the Mayor and City Clerk to execute said agreement on behalf of
the City.
Adopted by the Council of the City of Lino Lakes this 10th day of November, 2014.
The motion for the adoption of the foregoing resolution was introduced by Council Member
Kusterman and was duly seconded by Council Member Roeser and upon
vote being taken thereon, the following voted in favor thereof:
Kusterman, Roeser, Rafferty, Stoesz, Reinert
The following voted against same:
none
ATTEST:
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e Bartell, Ci ! Cle
CITY COUNCIL
AGENDA ITEM 6G
STAFF ORIGINATOR: Diane Hankee, City Engineer
MEETING DATE: November 10, 2014
TOPIC: Consider Resolution No. 14-135 Approving Professional Services
Contract with WSB, WaterCad Water System Modeling Update
VOTE REQUIRED: 3/5 Vote Required
INTRODUCTION
For the City to cost effectively manage the water distribution system a WaterCad model is used to
determine infrastructure needs; thus, requiring Council's consideration of professional services for
a water system modeling update.
BACKGROUND
The City of Lino Lakes has multiple proposed developments which are in accordance with the
City's comprehensive land use plan. To date, the City has been able to maintain their water
system effectively; however, as the City develops it is a goal to continue systematic water
system improvements that accommodate both the existing water system extents and the future
water system demands. The benefits of a water system model for the City of Lino Lakes
include:
• The model will serve as a baseline for system performance as the City infrastructure
continues to age;
• The ability for the City to evaluate current operating conditions for the goal of
operations optimization;
• Trunk watermain sizing can be determined more accurately determined as the City
continues to reconstruct portions of the City and developed portions of the City which
may result is smaller pipe sizes in addition to the City's trunk system; and
• The feasibility and effect on the City of Lino Lakes' water system related to future
regional groundwater planning efforts via the MCES and the local Northeast Metro
Groundwater Working Group can be evaluated as the City's current and future water
system is a distributed well network.
The scope of work as determined by City staff includes:
• Evaluation of the existing water system;
• Identification of existing water system deficiencies;
• Preparation of the proposed future trunk water system network; and
• Identification of future trunk water system capital improvements necessary to serve
future land use designations in accordance with the City's Comprehensive Plan.
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RECOMMENDATION
Staff recommends adoption of Resolution 14-135 Approving Professional Services Contract with
WSB, WaterCad Water System Modeling Update in the amount of $15,144.
ATTACHMENTS
1. Resolution No. 14-135
Proposal from WSB & Associates
WSB
t ,,.,� s engineering • planning • environ ental • construction 701 Xenia Avenue South
Suite 300
Minneapolis, MN 55416
Tel: 763-541-4800
Fax: 763-541-1700
October 27, 2014
Mr. Michael Grochala
Community Development Director
600 Town Center Parkway
Lino Lakes, MN 55014
Re: Scope of Work and Cost
Water Distribution System Modeling for the
City of Lino Lakes, MN
Dear Mr. Grochala:
We are pleased to present this proposal to assist the City of Lino Lakes with developing a water
distribution system model to evaluate the existing and future trunk water system. Outlined
below is a scope of work and cost estimate to perform the Water Distribution System Modeling
that includes:
• Evaluation of the existing water system;
• Identification of existing water system deficiencies;
• Preparation of the proposed future trunk water system network; and
• Identification of future trunk water system capital improvements necessary to serve
future land use designations in accordance with the City's Comprehensive Plan.
We understand that the City of Lino Lakes is currently developing in accordance with the City's
comprehensive land use plan. To date, the City has been able to maintain their water system
effectively; however, as the City develops it is a goal to continue systematic water system
improvements that accommodate both the existing water system extents and the future water
system demands. The benefits of a water system model for the City of Lino Lakes include:
• The model will serve as a baseline for system performance as the City infrastructure
continues to age;
• The ability for the City to evaluate current operating conditions for the goal of operations
optimization;
• Trunk watermain sizing can be determined more accurately determined as the City
continues to reconstruct portions of the City and developed portions of the City which
may result is smaller pipe sizes in addition to the City's trunk system; and
• The feasibility and effect on the City of Lino Lakes' water system related to future
regional groundwater planning efforts via the MCES and the local Northeast Metro
Groundwater Working Group can be evaluated as the City's current and future water
system is a distributed well network.
St. Cloud • Minneapolis • St. Paul
Equal Opportunity Employer
wsbeng.com
L
Mr. Michael Grochala
City of Lino Lakes, MN
October 27, 2014
Page 2
WSB's project scope and proposed work plan as presented is based on our understanding of the
project, discussions with City Staff, and experience on similar projects. The following are the
major tasks that will be performed in preparing the City's water distribution system model.
Task 1: Project Management and Coordination
Project management is a key task included in each project undertaken by WSB. This task
consists of management and administration, project coordination, and overall communication
with the City. Proper completion of this task will help keep all affected parties routinely updated
and informed regarding project issues, as well as keep the project on schedule and within budget.
The proposed work plan will include up to three meetings with the City as deemed necessary.
Project milestone meetings may include:
• Project kickoff/scoping meeting;
• Existing and future water demand discussion meeting; and
• Existing water system evaluation and future improvements review meeting.
Task 2: Existing Water System Data Collection
WSB will utilize as much as possible the data that is currently in-house; however, there may be
some amount of data necessary to complete the model will be collected from the City. The GIS
water system information and existing ground contours in GIS format will be used and it is
assumed that the pipe sizes are accurate or will be updated prior to the WaterCAD model is
initiated. Information that is assumed to be provided by the City includes:
• Existing and future land use map in GIS format;
• Record drawings for storage, supply, and treatment, including pump curves;
• Annual DNR Public Water Supply Inventories;
• Water pumping data;
• Water use records summarized by customer category;
• Water use records for the top ten water users for the past two years;
• Guidance on relationship between customer billing category and existing land use;
• Hydrant flow testing data for some locations;
• Information regarding currently proposed water system improvements;
• Information related to the existing distribution system that include low/high pressure
areas, tower cycling and backflow conditions, and main break history; and
• Necessary fire flows for specific properties within the City upon which the ISO
Classification was based.
No hydrant flow tests are included in the scope of work. It is assumed that the City has recent
and accurate hydrant flow testing that can be used to calibrate the water system model. See Task
7 for information regarding hydrant flow testing as additional services.
Task 3: Existing Water System Model Development and Evaluation
An existing distribution system WaterCAD model will be developed based on the existing water
system map. The GIS shape files and a map of the existing water system developed will be
Mr. Michael Grochala
City of Lino Lakes, MN
October 27, 2014
Page 3
provided to the City for future use. Existing storage, supply, and treatment capacity data will be
incorporated into the City's water system model.
WSB will also review water usage and pumping data to determine water usage per customer
category (residential, commercial, and industrial) and maximum day peaking factors. An
optional task is presented below under Task 7 to evaluate the City's hourly water usage. Should
this optional task not be selected, an estimated hourly peaking factor for the metro area will be
utilized.
Water usage demands within the WaterCAD model will be allocated to simulate where actual
water demands are located within the City. A correlation between customer category types and
land use will be necessary for completion of this task. The model will also be calibrated using
hydrant flow test data provided by the City to ensure the model accurately represents the existing
water system. WSB will review the City's hydrant flow information and ISO Classification to
determine fire flow requirements across the City.
The capacity of the existing water system under the existing demand scenarios will be evaluated
to determine any deficiencies. Recommendations to correct deficiencies will be provided and
will include fire flow improvements as they relate to the City's ISO classification.
Task 4: Population and Water Demand Projections
Based on future land use, the projected water usage per customer category/land use will be
evaluated for the ultimate population density. The water usage will be included in an ultimate
water system model to incorporate the system improvements. The existing water system model
will be expanded to model proposed water system improvements and future water system
demands of the trunk system (greater than 8 -inch diameter pipe sizes).
Task 5: Future Trunk Water System Model Development and Evaluation
Using the existing water system model, the overall system pressure and fire flow will be
evaluated to identify any future trunk water system improvements that are necessary to provide
sufficient pressures and flows for the ultimate land use plan. No phased scenarios will be
completed with this task. Phased future development scenarios can be completed for an
additional scope and fee. Recommendations for the future ultimate trunk water system will be
included on any type, location, and size of distribution mains, storage, and supply.
Task 6: Prepare Water System Technical Memorandum
A water system technical memorandum will be prepared and submitted to City for review. WSB
will incorporate any comments based on the City's review into the final technical memorandum.
The following data at a minimum will be included in the technical memorandum:
• Description of the modeling process and calibration method;
• Water demand estimates, assumptions, and land use changes;
• Existing water system evaluation;
• Existing water distribution system layout map;
• Existing average day and peak hour demand pressure contour map;
• Existing maximum day demand and available fire flow pressure contour map;
• Proposed future trunk water system evaluation;
Mr. Michael Grochala
City of Lino Lakes, MN
October 27, 2014
Page 4
• Proposed future trunk water distribution system layout map;
• Proposed future average day and peak hour demand pressure contour map;
• Proposed future maximum day demand and available fire flow pressure contour map;
• Water model pipe and node map Computer Model; and
• CD of computer model, including PDF of report and all figures included in report.
Task 7: Additional Services (Optional)
Hourly Water Use Analysis
An Hourly Water Use Analysis (if available on the City's SCADA) can be completed if
requested by the City. This analysis would evaluate the current hourly water demand trends for
the City. It entails using the City's SCADA system to estimate hourly water demand during peak
demand conditions. The analysis could be used as part of the existing water system evaluation to
provide the City a tailored demand estimate for evaluation of infrastructure performance under
the most demanding conditions.
Hydrant Flow Testing
As stated above, no hydrant flow tests are included in Tasks 1-6 of the scope of work. Hydrant
flow testing is a necessary part of the model calibration efforts and if recent hydrant flow testing
is available throughout the City's water system, that data can be used for calibration purposes. If
there is no hydrant flow testing available or if the City feels that the flow testing available is not
representative, WSB can perform hydrant flow testing. The cost for hydrant flow testing is
included in the proposal fee section as an optional cost.
Total Cost and Schedule
The cost to perform the Tasks 1-6 described above is a lump sum of $15,144. The following
presents the cost breakdown for each service presented in this proposal:
Project Task
Lump Sum
Cost
Task 1: Project Management and Coordination
$2,412
Task 2: Existing Water System Data Collection
$566
Task 3: Existing Water System Model Development and Evaluation
$6,082
Task 4: Population and Water Demand Projections
$618
Task 5: Future Trunk Water System Model Development and
Evaluation
$2,186
Task 6: Prepare Water System Technical Memorandum
$3,280
Total Project Cost
$15,144
Optional Task: Additional Hourly Water Use Analysis
$1,069
Optional Task: Hydrant Flow Testing
$1,259
If additional work is required beyond the summarized scope above, WSB will receive
authorization from the City prior to initiating the work. Upon authorization, WSB will deliver
the associated water system model and final technical memorandum by February 28, 2015. If
you wish to authorize this work, please sign below and submit a copy to WSB.
Mr. Michael Grochala
City of Lino Lakes, MN
October 27, 2014
Page 5
Sincerely,
WSB & Associates, Inc.
Diane Hankee, PE
City Engineer Project Manager
ACCEPTED BY:
City of Lino Lakes
Name
Title
Date
WSB & Associates, Inc.
W
Jamie Wallerstedt, PE
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