Croton on Hudson Water System July 5 2011
resolution
53 pages
Meeting: portal event 717 (no meeting page on file)
Agenda item: PROPOSED RESOLUTIONS: — Resolution-O Brien & Gere
Resolution, 53 pages. Attached to agenda item: “PROPOSED RESOLUTIONS: — Resolution-O Brien & Gere”
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Village of CrotonͲonͲHudson
July 5, 2011
Development of a Digital Computer Model for the
Village’s Water Supply System
PROPOSAL
22 Saw Mill River Road, First Floor, Hawthorne, NY 10532 | p 914Ͳ345Ͳ1616 | f 914Ͳ345Ͳ1611 | www.obg.com
360° Engineering and Project Delivery Solutions
July ͷǡ ʹͲͳͳ
MrǤ Marco Gennarelli
Superintendent of Public Works
Village of CrotonǦonǦHudson
Stanley HǤ Kellerhouse Municipal Building
One Van Wyck Street
CrotonǦonǦHudsonǡ NY ͳͲͷʹͲǦʹͷͲͳ
REǣ Request for Proposal ȋRFPȌ Ȃ Development of a Digital Computer Model for Villageǯs Water Supply System
Dear MrǤ Gennarelliǣ
The Village of CrotonǦonǦHudson desires engineering services in response to their RFP for Development of a
Digital Computer Model for Villageǯs Water Supply SystemǤ Enclosed is OǯBrien Ƭ Gereǯs proposalǡ which was
developed based on the RFP and our discussions with Village personnelǡ and our extensive experience with
similar projectsǤ This proposal includes a summary of our understanding of the projectǡ a detailed proposed
project approachǡ and a description of our firmǯs qualifications and project team to perform the projectǤ Our
estimated engineering fee has also been providedǤ Key issues to be addressed by the water supply system model
are as followsǣ
Identify impacts of maintenance activities
Identify system “bottlenecks” (flow and pressure)
Identify system water age issues
Test response of system flow, pressure and quality to multiple improvements
OǯBrien Ƭ Gere has reviewed the unique aspects of this project and identified what we believe to be keys to
successǣ
Experienced Project Team Ȃ The proposed project team consisting of Lowell AǤ Kachalskyǡ PEǡ as Project
Officerǡ Rick Gellǡ PEǡ as Project Managerǡ Brian Edwardsǡ PEǡ as Lead Modeler and Thomas Dummǡ PE for
QAȀQCǤ
Experienced Project Manager Ȃ As Project Managerǡ Rick Gellǡ PE will bring overall project management
experience and experience with numerous water distribution system modeling studies and analyses to your
projectǤ He has been involved with water system planning and analysis throughout his ͵ͳ year careerǤ He
served in this same role for projects throughout New York StateǤ
Experienced Lead Modeler and QA/QC Team – Our modeling teamǡ with Brian Edwardsǡ PE ȋLead ModelerȌ
and Thomas Dummǡ PE ȋQAȀQCȌ will bring overall distribution system modeling experience second to noneǤ
Both MrǤ Edwards and MrǤ Dumm have significant xperience with numerous water distribution system
modeling studies and analyses to to bring to the Villageǯs projectǤ They each have been involved with water
system planning and analysis throughout their careers and bring National and New York State experiences to
this projectǤ Their experience with water model development and calibrationǡ GIS integrationǡ and system
planning and operation will be applied to your project to bring it to a successful completionǤ
360° Engineering and Project Delivery Solutions
Village of CrotonͲonͲHudson
New York
©Copyright, 2011
O’Brien & Gere Engineers, Inc.
All Rights Reserved
NOTICE
This copyrighted material represents the proprietary work
product of OǯBrien Ƭ GereǤ This material was prepared for
the specific purpose of securing a contract with Village of
CrotonǦonǦHudsonǤ No other useǡ reproductionǡ or
distribution of this material or of the approaches it containsǡ
is authorized without the prior express written consent of
OǯBrien Ƭ GereǤ Howeverǡ the recipient may make as many
copies of this document as deemed necessary for the sole
purpose of evaluating this document for final selection and
awardǤ
All materials printed on recycled paper.
Development of a Digital Computer
Model for Village’s Water Supply
System
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEMŇTABLE OF CONTENTS
i
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/TOC.doc
TABLE OF CONTENTS
SECTION 1
Project Approach
1Ǧ1
Project Understanding ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ͳǦͳ
Scope of Services ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ͳǦͳ
Preliminary Project Schedule ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ͳǦ
SECTION 2
Qualifications of the Firm
2Ǧ1
Firm Overview ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ʹǦͳ
Specialized Experience ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ʹǦͳ
References ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ʹǦͶ
SECTION 3
Qualifications of the Team
3Ǧ1
Organization ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ͵Ǧͳ
Key Personnel ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ͵Ǧʹ
Project Team Resumes ǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤǤ ͵Ǧ͵
SECTION 4
Cost Proposal
4Ǧ1
SECTION 5
Attachments
5Ǧ1
Vendor Form
Insurance Certificate
WǦͻ Form
PROJECT APPROACH ŇSECTION 1
360° Engineering and Project Delivery Solutions
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
SECTION 1 – PROJECT APPROACH
PROJECT UNDERSTANDING
Through our recent discussions and meetingsǡ OǯBrien
Ƭ Gere understands that the Village of CrotonǦonǦ
Hudson recognizes the benefits of developing and
calibrating a hydraulic model of the water system that
accurately simulates the existing conditionsǤ The
Village has identified that the model could potentially
assist with the followingǣ
Evaluating distribution system improvementsǤ
Evaluating and testing alternatives to improve
system hydraulicsǤ
Evaluating and testing alternatives to improve
system water quality and water ageǤ
Identify water quality and reliability benefits
associated with various measures such as looping
water mainsǤ
Checking fire flow capabilities throughout the
systemǤ
Conducting a critical needs assessment to identify
which CIP projects should be builtǤ
Developing maintenance measures such as water
main flushing programsǤ
This proposal is issued in response to the Villageǯs
requestǤ The objective is to develop and calibrate a
digital hydraulic model of the Villageǯs water system
for use as a tool to improve understanding of the
systemǤ It is our understanding that modeling
software will not be purchased by the Village at this
timeǤ
KEY ISSUES STUDY MUST ADDRESS
Based on this understandingǡ the study must address
the following fundamental issues and specific
questionsǣ
Model configuration Ǧ Model must accurately
reflect the existing Village facilities ȋe.g., physical
configurationǡ wellsǡ booster pump hydraulic
performanceǡ control logicǡ transmission and water
main configurationǡ storage tanksǡ control valvesǡ
hydrantsȌǡ and must be compatible with the
Villageǯs geographic information system ȋGISȌ
Model capabilities Ǧ Model must reflect actual
performance of the existing facilities (i.e.,
calibration criticalȌ
Water demands and patterns Ȃ Current and
projected demands and diurnal patterns must be
understood and properly applied to the model
System operation Ǧ Existing controlsǡ operational
objectivesǡ and priorities Ȃ and the reasons and
history behind them Ȃ must be fully understood
System improvements Ȃ Using modeling results to
define critical hydraulic and water quality needs
and identify practical Capital Improvement Plan
ȋCIPȌ solutions
OǯBrien Ƭ Gereǯs Team is familiar with these issues
through previous modeling of many distribution
systems in New York and nationwideǤ Clear answers
to these questions will be formally developed during
the studyǤ
SCOPE OF SERVICES
To achieve the project objectives and address these
key issuesǡ OǯBrien Ƭ Gereǯs proposed scope of
services includes the following tasksǣ
Task ͳ Ȃ Data Collection
Task ʹ Ȃ KickǦoff MeetingȀWork Session NoǤ ͳ
Task ͵ Ȃ Software Selection
Task Ͷ Ȃ Water System Model Development
Task ͷ Ȃ Water Demand Allocation
Task Ȃ Work Session NoǤ ʹ
Task Ȃ Model Calibration
Task ͺ Ȃ Work Session NoǤ ͵
Task ͻ Ȃ System Analyses
Task ͳͲǦ Deliverables
Task ͳͳ Ȃ Project Management
TASK 1 – DATA COLLECTION
OǯBrien Ƭ Gere requests the following information ȋto
the extent it is availableȌ for use during model
development and calibrationǣ
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
Record drawings ȋor latest revision availableȌ of
the Villageǯs pumping stationsǡ storage tanksǡ wellsǡ
piping and any wholesale meter locationsǢ
GIS shapefiles or geodatabase for piping ȋif
availableȌǢ
Locations of any closed valvesǢ
Pump curves ȋfactory certified if availableȌ for
existing Village pumpsǢ
Hydraulic configuration for all water storage tanks
ȋe.g., overflow elevationǡ ground elevationǡ
operating rangeǡ diameterǥobtain from existing
model if availableȌǢ
Current pressureȀlevel settings for any control
ȋe.g., altitudeǡ pressure reducingȌ valves in the
Villageǯs water systemǢ
Any current capital improvement and
rehabilitationȀreplacement plans for the VillageǢ
Water billing meter data compiled for at least one
yearǢ
Hourly data and boundary conditions ȋe.g.,
pumping pressure and flowǡ and tank levelsȌ for a
sevenǦday period encompassing the maximum day
demandǢ
Water supply contracts between the Village and
other municipalitiesȀdistrictsǢ
Any other reports or documentation related to
system operation and controlǤ
To allow an assessment of the available information
to be made prior to the initial KickǦoff Meetingǡ
OǯBrien Ƭ Gere will request that copies of this data be
provided as soon as possible after issuance of an
authorization to proceedǤ
TASK 2 – KICKͲOFF MEETING
Upon receipt of authorization to proceedǡ OǯBrien Ƭ
Gere will conduct a KickǦoff Meeting with the VillageǤ
During this meetingǡ the project scope and schedule
will be reviewedǡ lines of communication will be
confirmedǡ and a progress meeting schedule will be
establishedǤ In additionǡ information reviewed toǦdate
and information Dzdata gapsdz will be discussedǤ
OǯBrien Ƭ Gere will develop and provide meeting
minutes within seven days of the KickǦoff MeetingǤ
TASK 3 – SOFTWARE SELECTION
At the kickoff meetingǡ OǯBrien Ƭ Gere will solicit
input from the Village and make a recommendation
regarding the hydraulic modeling software to be used
in the studyǤ The team selected for this project works
with a wide variety of modeling software products
and software developers to address clientǦspecific
needsǤ Based on experienceǡ the following provides a
general description of the most powerful and
applicable modeling software packages for this
projectǣ
WaterCAD by Bentley Systemsǡ IncǤ Ȃ WaterCAD is
a hydraulic and water quality model for water
distribution systems with standǦalone or AutoCAD
interfacesǡ fully supported by mapping in CAD or
GIS formatsǤ
WaterGEMS by Bentley Systemsǡ IncǤ Ȃ WaterGEMS
is a water distribution model identical to
WaterCAD with fullǡ seamless integration with GIS
applicationsǤ WaterGEMS can run on four different
platformsǣ stand aloneǡ Microstationǡ AutoCADǡ or
ArcGISǤ
InfoWater by Innovyze ȋformerly MWH Softǡ IncǤȌ Ȃ
InfoWater is a fully GISǦintegrated water
distribution modeling and management software
applicationǤ Built atop ArcGIS using the latest
Microsoftǡ ǤNETǡ and ESRI ArcObjects component
technologiesǡ InfoWater seamlessly integrates
advanced water network modeling and
optimization functionality with the latest
generation of ArcGISǤ
HʹOMAP Water by Innovyze Ȃ HʹOMAP Water is a
Dzstand alonedz modeling package that operates
outside of a GIS platformǤ The software fully
supports geocoding and multiple mapping layersǡ
which can be imported from one of many data
sourcesǡ including CAD and GIS formatsǤ The
modules in HʹOMAP Water and InfoWater are the
same so there is no reduction in software
capabilitiesǤ
The evaluation criteria defined below can be used to
differentiate between modelsǤ
Capabilities and Limitations Ȃ This criterion
addresses the ability of the software to allocate
demands or flowsǡ model water distribution
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
system water qualityǡ calculate water system fire
flowǡ links to SCADAǡ and links to GISǤ
Portability and System Requirements Ȃ Computer
software should be adaptable to changing
computing environmentsǡ such as Windows XPǡ
ArcGIS ͳͲǡ etcǤ This criterion also addresses use of
the software on single computer verses
networking multiple workstationsǤ
Software User Support Ȃ Privately developed
programs have software license agreements that
contain provisions for software supportǤ Software
support can include answering general modeling
questions and repairing encountered software
bugsǤ
Ease of Use Ȃ This criterion includes data editingǡ
documentation qualityǡ diagnostic messagesǡ and
graphics capabilities ȋe.g., annotation of model
componentsǡ contour plots of model resultsȌǤ
Each software package described above will meet the
project objectivesǤ Based on our discussions with the
Villageǡ the capabilities and successful operating
experience that OǯBrien Ƭ Gere has had with the
Innovyze and Bentley productsǡ as well as other
software selections recently conducted for other
municipal clientsǡ our preliminary recommendation is
to develop the Village model using InfoWater
software from InnovyzeǤ
TASK 4 – WATER SYSTEM MODEL DEVELOPMENT
Using information obtained under Task ͳǡ OǯBrien Ƭ
Gere will develop the water system model using the
selected software ȋsee Task ͵ȌǤ The model will be
developed such that extended period simulations
ȋEPSsȌ can be performedǤ The following summarizes
specifically how OǯBrien Ƭ Gere will utilize the
available data to populate the modelǣ
Pipe Locations and Diameters Ȃ OǯBrien Ƭ Gere will
obtain and import the most recent version of the
Villageǯs existing GIS shapefile ȋif availableȌ or map
for piping and use this information as the basis for
creating the network modelǡ including
nodeȀjunction locationsǡ pipe lengthsǡ pipe sizesǡ
and valve locationsǤ After importing the piping
shapefile or developing the piping network from
mappingǡ network connectivity issues associated
with the water system piping will be identified
using features in the model and these problem
areas will be provided to the Village for resolution
in the GISǤ Upon resolution of the connectivity
issuesǡ OǯBrien Ƭ Gere will import the corrected
piping shapefile which will be used for further
model developmentǤ This revised piping layer will
be combined with roadwaysȀstreets and parcel
files obtained from the VillageǤ Road centerlines
will be used for the pipe centerlines with
appropriate adjustments as neededǤ The result will
be a geoǦreferenced map of the water system
compatible with other digital data sources ȋeǤgǤǡ tax
mapsǡ elevation dataȌǤ
Pipe Material and Year of Installation Ȃ OǯBrien Ƭ
Gere will input this data into the model based on
information provided by the Village in the piping
shapefile or map and discussions with the VillageǤ
Pipe Roughness ȋCǦfactorȌ Ȃ OǯBrien Ƭ Gere will
make initial estimates of CǦfactors for pipes in the
modelǡ based on evaluation of the pipe material
and age data provided by the VillageǤ Pipe CǦ
factors will be adjusted during model calibrationǤ
Node Elevations Ȃ The model will interpolate
elevation data using contour mapping available
through the Village or the NYS GIS clearing houseǤ
It will be important to confirm that elevations are
referenced to a common datumǤ
Node Demands Ȃ Water demands will be assigned
to nodesȀjunctions in the model as discussed
under water demand allocationǤ
Valve Characteristics Ȃ Control valve data and
valve position ȋi.e., open or closedȌ will be put in
the model based on information provided by the
VillageǤ
Booster Pump Characteristics and Wells Ȃ OǯBrien
Ƭ Gere will input pump flow and head
characteristics based on the manufacturersǯ pump
performance curvesǡ as well as any additional data
that can be obtained from the Village or pump
manufacturersǤ Pump control logicȀconstraints
will be entered into the model to simulate current
operating strategy based on discussions with
Village staffǤ
Storage Characteristics Ȃ OǯBrien Ƭ Gere will input
data to represent tank geometry for hydraulic and
water quality modeling purposes based on
information provided by the VillageǤ
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
TASK 5 – WATER DEMAND ALLOCATION
Daily water production records will be used to
establish overall system water use and demandsǤ The
allocation of that use across the Villageǯs water
system will be established using the individual water
meter records from the January ʹͲͳͲ to December
ʹͲͳͲǤ A multiǦstep process will estimate annual
average water use for each meterǤ
Firstǡ the monthly or quarterly metered usage for
each meter over the period of record will be
estimated by averaging the metered usage over the
billing periodǤ Nextǡ the total annual metered usage
will be calculated as the sum of the monthly usage for
individual meters for each calendar yearǤ This total
will be compared with the corresponding total water
supplied to the Village to develop a correction factor
addressing nonǦmetered water usageǤ
The total average day water usage value assigned to
individual meters will be an annualized average with
the nonǦmetered usage correction factor applied
globally ȋi.e., systemǦwide average of the nonǦmetered
useȌǤ The average day water usage for each meter will
be assigned ȋi.e., linkedȌ to the parcel centroid using
address data from the billing system and parcel data
available in the VillageǤ
The model will be used to assign the water usage at
the parcel centroid to either the nearest pipe or nodeǤ
OǯBrien Ƭ Gere will show the linkage between the
parcel node and the assigned node or pipe to confirm
with the Village that usage assignments are correctly
applied to the nodes or pipes at any locations that are
questionable ȋe.g., multiple metersȌǤ
TASK 6 – WORK SESSION NO. 2
The findings from the development of the water
model will be presented and discussed at Work
Session NoǤ ʹǤ
OǯBrien Ƭ Gere will bring a laptop computer to the
work session with the Village to demonstrate model
development progress and illustrate issues directly
with the VillageǤ
FieldǦtesting is a key component of the model
calibration processǤ FieldǦtesting ȋfire flow tests and
flowȀpressure monitoringȌ is required to obtain the
necessary data for model calibrationǤ It is
recommended that fire flow tests be performed while
the boundary conditions ȋiǤeǤǡ water levels in storage
tanksǡ pumping ratesǡ etcǤȌ are specifically being
monitoredǤ It is assumed that ten ȋͳͲȌ to twenty ȋʹͲȌ
fire flow tests will be conducted for this studyǤ
OǯBrien Ƭ Gere will develop the fieldǦtesting program
to be utilized in calibrating the water modelǤ Hydrant
flow tests locations will be identified by OǯBrien Ƭ
Gere and conducted by the Village personnel at
various locations throughout the Villageǯs systemǤ It is
assumed that the Villageǯs personnel will operate
hydrantsǡ perform the testsǡ and record the dataǤ We
will coordinate closely with the Village regarding
scheduling of field workǡ and if practicalǡ have flow
testing done in the Fall when the hydrant flushing
activities are undertakenǤ
TASK 7 – MODEL CALIBRATION
The water model will be calibrated with the goal of
predicting fire flow tests to within ͷ psi of the
measured static and residual pressuresǤ For tests
where modeled pressures are not within ͷ psi of
measured residualsǡ the boundary conditions and
hydrant elevations will be verified and the potential
for closed valves will be discussed with the VillageǤ
Calibration results will be entered into a spreadsheet
with information on the test locationǡ model
pipeȀjunction labelǡ pipe sizeǡ flow magnitudeǡ node
demandǡ measured and modeled static and residual
pressuresǡ and difference between modeled and
measured valuesǤ
TASK 8 – WORK SESSION NO. 3
The findings from the development of water demandsǡ
field testingǡ and model calibrationǡ will be presented
and discussed at Work Session NoǤ ͵Ǥ
OǯBrien Ƭ Gere will bring a laptop computer to the
work session to demonstrate the status of model
developmentǡ and show the Village firstǦhand how the
model is operatedǤ
TASK 9 – SYSTEM ANALYSES
The Village envisions using the model to provide a
better understanding of the water system and
practical solutions to address both hydraulic ȋiǤeǤǡ
pressure and flow to meet fire flowsȌ and water
qualityȀage concernsǤ
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
Hydraulic analyses
We will identify the system Dzbottlenecksdz which for
small systems like the Village are typically revealed
under a stressed condition ȋiǤeǤǡ low pressure and flow
typically occur under a high demandȀflow condition
such as fire flowȌǤOǯBrien Ƭ Gere will conduct
comprehensive hydraulic analyses under various
demand conditions including fire flow using the
calibrated model to identify Dztrouble spotsdz in the
system that do not meet Villageǯs pressure and flow
requirements ȋiǤeǤǡ typically ʹͲ psi minimum under
fire flow conditionsȌǤ The model will be used to
identify the estimated residual pressure at the
required fire flow demandǤ This fire flow data will be
provided to the Village and will assist in identifying
trouble spots or Dzbottlenecksdz in their system where
fire flow capacity is inadequate and provide direction
for future improvementsǤ A map showing the flow
available at ʹͲ psi for each node in the model will be
presented to the Village for review and discussionǤ
Water system improvement alternatives will be
modeled to define how best to resolve the water
system Dzbottlenecksdz and the results will be presented
to the VillageǤ
Extended Period Simulations ȋEPSȌ
OǯBrien Ƭ Gere will work with the Village to establish
details for a ʹͶǦhour extended period simulation
under average day and maximum day demand
conditionsǤ The intent of the EPS run is to analyze
tank turnover rates and fillȀdrain timesǡ and evaluate
the effect of current system operation on the
distribution systemǤ We will use the EPS runs to
provide a secondary level of calibration for the model
and to help the Village characterize its system and
provide insight for optimizing system performance
with regard to pumping operation and tank turnover
ȋiǤeǤǡ water quality and energy useȌǤ
Water quality analyses
The starting point for water quality analyses is a
water system model that is adequately calibrated and
can accurately produce results for extended period
simulationsǤ The amount of information collected
during the field services program will drive the level
of confidence the modeler has with the model
calibration as well as the prediction of water quality
throughout the water systemǤ Two common water
quality applications which will be conducted include
water age analyses and source trace analyses which
are briefly described belowǤ
Water age analysesǤ Water age is the cumulative
residence time of water in the system and is
regarded as a reliable surrogate for water qualityǤ
Water age is of particular interest in assessing
water storage tank turnover and formation of
disinfection byproductsǤ We recognize that many
water utilities are currently focused on predicting
how water age increases throughout the water
systemǤ We will perform modeling runs and
generate a map showing the predicted water age at
each storage tank and node in the water systemǤ
Impacts of operational changes and system
improvements on the water age will be evaluatedǤ
Source trace analysesǤ Source trace analyses can be
used to identify the area within a system that is
influenced by a particular source ȋiǤeǤǡ wellsǡ water
treatment plant or storage reservoirȌ or tracking
water movement through a systemǤ These
analyses are particularly useful for defining where
and to what extent mixing occurs at a particular
location which can assist with identifying taste and
odor problemsǡ water age and disinfectant
residuals maintenance issuesǤ As part of Stage ʹ
disinfection byproducts studiesǡ OǯBrien Ƭ Gere
has used water age analyses to identify water
storage tanks that dramatically increased water
age and conducted source trace analyses to predict
which areas of the system were impacted by the
Dzolddz water draining from the reservoir or tankǤ In
some casesǡ these investigations led to the
recommendation that these Dzproblemdz tanks be
taken offlineǤ Source trace analyses will be
conducted to assist the Village with understanding
water quality under various operating conditionsǡ
and how storage influences water quality in the
systemǤ The percentage of flow from the sources
in question ȋiǤeǤǡ storage tanksȌ at key nodes in the
system will be mapped to illustrate the influence of
these sources on the nodes under various
conditionsǤ
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
OǯBrien Ƭ Gere has conducted a number of water
quality modeling and management studies for
municipal clients over the past few yearsǡ including
the followingǣ
Used hydraulic model ȋWaterCADȌ to predict the
Dzfrontdz for switchover from chlorine to
chloramines for DC WaterǤ
Conducted source trace and water age analyses
ȋInfoWaterȌ for finished water storage reservoir
study for Rochesterǡ NY ȋ͵ reservoirs totaling ͳͷͲ
MGȌ to assess impacts on DBPs as a result of
covering three open finished water reservoirsǤ
Conducted water age analyses to satisfy Stage ʹ
DBP requirements for Virginia American Water
ȋAlexandriaǡ Prince Williamǡ Hopewell and FtǤ Lee
water systemsȌǢ Louisaǡ VAǢ Lebanonǡ KYǢ
Bethlehemǡ NYǢ and Colonieǡ NYǤ
Conducted water age analysis in support of
proposed tank construction in Anne Arundel
County ȋfive ʹ MG tanksȌǡ including
recommendations for tank mixing devices as
deemed appropriateǤ
Capital Improvements Plan
The results and conclusions of Tasks ͳ through ͻ will
provide the basis for a sound Capital Improvement
Plan ȋCIPȌ for the VillageǤ OǯBrien Ƭ Gere will work
with the Village to develop a prioritized list of
hydraulic and water quality improvement projects
with associated budgetary costs for eachǤ Separate
project descriptions will be prepared for each
recommended improvementǤ Project
recommendations will include the justification
ȋnature of deficiency and impact on systemȌǡ the
benefits of the project improvementǡ a discussion of
alternatives consideredǡ and the estimated project
costǤ With input from the Villageǡ criteria will be
identified to evaluate system improvementsǤ These
criteria may include documentation of the technical
feasibilityǡ benefitsǡ capital and operating costsǡ and
environmental and community impactsǤ NearǦterm
improvements will be compared to longǦterm
improvements for compatibility ȋegǢ it may not be
prudent to upsize a Ǧinch main to an ͺǦinch to meet
shortǦterm needs if a ͳʹǦinch main is required to
satisfy longǦterm needsȌǤ A map showing the existing
system and proposed improvements will be
developed to identify the location of each
recommended projectǤ
If requested by the Village for this studyǡ OǯBrien Ƭ
Gere has the ability to conduct stateǦofǦtheǦart
modeling to prioritize the CIP using Innovyzeǯs
CapPlan Water softwareǤ This software allows the
modeling to conduct criticality analyses which would
provide the Village with the consequence and
likelihood of failure rankings for each system
componentǤ This information could be used to
develop the overall risk assessmentǡ break
assessment and priority schedule for water main
replacement ȋͶͲǦͷͲ year planȌǤ This effort would
require input from the Village on the consequence of
failure for critical customers ȋiǤeǤǡ hospitalsǡ industriesǡ
etcǤȌǤ
TASK 10 – DELIVERABLES
OǯBrien Ƭ Gere will prepare the following
deliverablesǣ
Meeting Minutes Ȃ OǯBrien Ƭ Gere will prepare
minutes from project meetings and Work Sessions
and submit copies to the Village within seven daysǤ
The minutes will focus on documenting important
decisions and action itemsǤ
Draft Report Ȃ OǯBrien Ƭ Gere will prepare a Draft
Reportǡ clearly presenting the model development
including input dataǡ water demand allocationǡ
field testing resultsǡ model calibrationǡ and system
needs
and
improvementsǤ
The
report
will
summarize findings of the modeling analyses for
baseline and recommended system conditionsǡ
including hydraulic and water quality results
under current system operation and controlsǤ It is
anticipated that the report will be submitted
electronically ȋMicroSoft WordȌ to the Village for
review and commentǤ
Final Report Ȃ Upon receipt of comments from the
Villageǡ OǯBrien Ƭ Gere will revise and issue the
Final ReportǤ Five ȋͷȌ copies of the final report will
be submittedǡ as well as a CD containing a PDF
version of the final report and attachmentsǤ
Other Work Products Ȃ OǯBrien Ƭ Gere will provide
electronic copies of work products to the Village
on CDǡ including spreadsheetsǡ GIS productsǡ and
model input filesǤ
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 1
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Approach.doc
TASK 11 – PROJECT MANAGEMENT
Under this taskǡ OǯBrien Ƭ Gere will manage the
project schedule to maintain continuity of project
execution and compliance with project milestonesǡ
and will regularly communicate with the Village
regarding project scopeǡ scheduleǡ and budgetǤ
PRELIMINARY PROJECT SCHEDULE
OǯBrien Ƭ Gere is able to begin work on this project
immediately upon receiving a notice to proceed and
propose to complete all tasks in approximately ͳʹͲ
calendar daysǡ depending on ability of the Village to
provide the hydrant flow test data in a timely mannerǤ
QUALIFICATIONS OF THE FIRM ŇSECTION 2
360° Engineering and Project Delivery Solutions
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 2
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModelSystem/Quals.doc
O’Brien & Gere’s experience and expertise
includes:
HydraulicȀhydrologic modeling and water
quality analysis
Water demand projections and allocation
Hydraulic model development and
calibration
Water system field services model
calibration data collection ȋiǤeǤǡ fire flow
testingǡ tracer studiesǡ etcǤȌ
Water distribution system corrosion
studiesǡ leakage and flow tests
System mapping
MultiǦjurisdictional coordination between
water purveyors
Regulatory agency negotiations and
permitting
Regional water system planning
Feasibility studies for plant capacity
expansions
Siting studies for treatmentǡ pumpingǡ
storage and transmission facilities
Ecological studies and environmental
impact statements
Treatment process evaluationsǡ pilot
testing and optimization studies
System valuations for bonding programs
Rate studies
Water consumption and demand
projections
Groundwater and surface water source of
supply studies
Development of cost estimates
Capital improvements prioritizing and
scheduling
Assistance in obtaining funding
Serving under Trust Indentures and as
EngineerǦofǦRecord
Development of facility operation and
maintenance manuals
SECTION 2 – QUALIFICATIONS OF THE FIRM
FIRM OVERVIEW
Water system modeling and planning has been an
essential part of O’Brien & Gere’s services to its
clients for over 65 years. Such studies have resulted
in comprehensive water system plans for individual
villagesǡ towns and citiesǡ as well as regional water
authoritiesǡ agenciesǡ and districtsǡ many involving
system expansion and storage facility evaluationsǤ
OǯBrien Ƭ Gere starts by allocating existing demands
and projecting future water demands using
demographicsǡ and projected land use and
developmentǤ The firm developsǡ calibratesǡ and uses
GIS and sophisticated computer models to assist in
identifying system deficiencies and planning to meet
the nearǦterm and longǦterm demands of the water
system customersǤ Working with staffǡ specialized
analyses are performed to identify improvements to
address water quality complaints and maintain water
quality and assess operational efficiency of pumping
and storageǤ
SPECIALIZED EXPERIENCE
MUNICIPAL SERVICES
OǯBrien Ƭ Gere provides comprehensive waterǡ
wastewaterǡ energyȀsustainabilityǡ and
environmental services to municipalitiesǡ public and
private water and sewer utilitiesǡ and state agencies
ȋour DzMunicipal ClientsdzȌǤ OǯBrien Ƭ Gere works with
its clients from the first stage of the projectǡ
developing a solid foundation to provide ͵Ͳ degree
service through planningǡ designǡ constructionǡ and
startǦup phasesǤ A fully integrated approach produces
proven resultsȂ saving timeǡ moneyǡ and stressǤ
WATER / WASTEWATER MASTER PLANNING
Water supply and system planning studiesǡ rate and
financial studiesǡ and system valuationsǡ both local
and regionalǡ have been an essential part of OǯBrien Ƭ
Gereǯs services to its clients for ͷ yearsǤ Such studies
have resulted in comprehensive plans for individual
villagesǡ towns and citiesǡ as well as regional water
authoritiesǡ agenciesǡ and districtsǡ many spanning
planning periods of ʹͲǦͷͲ yearsǤ
The firm provides the full range of services necessary
to develop sound conclusions and recommendations
concerning how to supply water over the longǦterm to
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 2
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModelSystem/Quals.doc
meet the demands and quality required for specific
water system customersǤ In addition to financialǡ
environmentalǡ regulatory and technical factorsǡ
OǯBrien Ƭ Gere evaluates demographicsǡ historical
land useǡ archaeologyǡ traffic and transportation
planningǡ projected land developmentǡ geography and
geotechnical issuesǡ interconnections with
neighboring water purveyors and potential joint
supplier mergersǡ and emerging environmental issues
and legislation that may affect water supply
development and system planningǤ The end
recommendations permit the client to make fully
informed decisions on capital investmentsǡ
prioritizing them by such factors as projected
demandǡ costǡ technical feasibilityǡ environmental
acceptanceǡ and regulatory requirementsǤ
The following matrix reflects some key water
system modeling and facility planning studies
conducted by O'Brien & Gere followed by a table
that reflects recent water system hydraulic
modeling experience for the firm.
360° Engineering and Project Delivery Solutions
O'Brien & Gere National Water Distribution System Modeling
Distribution
System Modeling
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 2
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModelSystem/Quals.doc
O’Brien & Gere
Water System Modeling Matrix for Recent Relevant Projects
GIS Integration
Model Calibration
Water Quality
InfoWater Model
Hydraulic Analyses
Client
Project
Services
Town of Colonie, NY
Water System Facilities and Water Quality Management
Plan (Ongoing)
Village of Rosendale, NY
Potable water System Model (2008)
Town of Bethlehem, NY
Water System Model Development and Planning Study
(Ongoing)
City of Rochester, NY
Reservoir Optimization Study (2008)
City of Johnstown, NY
Water Distribution System Model(2008)
Jackson Township Municipal
Utilities Authority, NJ
Water System Modeling and Master Plans (2001/2009)
Town of Louisa, VA
Waterworks Improvements / Disinfection ByͲproducts
Study (2009)
City of Fairfield, OH
Water System Master Plan (Ongoing)
City of Lebanon, KY
Water System Modeling and IDSE Plans (Ongoing)
City of Annapolis, MD
Water and Sewer System Study (Ongoing)
American States Utilities Services
(Andrews AFB, MD)
Water and Sewer System Master Plan (Ongoing)
Anne Arundel County, MD
Water Strategic Plan and Modeling Services (Ongoing)
Virginia American Water (City of
Alexandria, Prince William County,
City of Hopewell, Ft. Lee)
Comprehensive Planning Study and IDSE Plans (Four
Distinct Systems) (Ongoing)
Frederick County Sanitation
Authority, Winchester, VA
Strategic Plan for Water Supply (2008)
Stafford County, VA
Water and Wastewater Master Plan (2005)
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 2
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModelSystem/Quals.doc
REFERENCES
This section concludes with four client references for
water quality modeling projects that are of a similar
scope and magnitude and are current or completed
less than five years agoǤ
CLIENT
Town of Bethlehem
REFERENCE
Richard Sayward
Chief Water Treatment Plant
Operator
(518) 765Ͳ4433
LOCATION
New York
KEY FEATURES
Calibration to within 5 psi of
measured values
Prioritized list of “looping”
projects to address fire
flow, water ago and water
pressure
Provided training to Town’s
staff on how to use the
model
The Town of Bethlehem provides approximately 6 MGD of water to 30,000
people and several large industrial customers. Present sources of water supply
are not sufficient to reliably meet current demands or projected future needs,
and the Town retained O’Brien & Gere to perform a water supply and treatment
study. An additional project coinciding with this study is the development of a
water system hydraulic model. The modeling software is InfoWater by MWH
Soft, Inc., a GISͲbased package accessed via ESRI Arc View.
The following is a brief description of the scope of services performed for this
project.
MODEL SELECTION
Four GISͲbased modeling platform packages were evaluated based on
capabilities and limitations, portability and system requirements, purchase price,
annual cost, software user support, and ease of use.
MODEL DEVELOPMENT
The model is being developed so that extended period simulations (EPSs) can be
performed. The following data was used to populate the model: pipe locations
and diameters, pipe material and year of installation, pipe roughness (“C”Ͳ
factor), elevations, water demands, valve locations and characteristics, pump
characteristics (i.e., pump curves), and storage tank characteristics (i.e, diameter,
floor elevation, and high water elevation).Improve security of critical water
treatment and transmission facilities.
WATER DEMAND ALLOCATION
Demands were developed using daily water production records for a threeͲyear
period. The allocation of that use across the distribution system was established
using the individual water meter records. The total annual metered usage was
calculated as the sum of the monthly usage for all individual meters for each
calendar year. This total was compared with the corresponding total water
production from the sources to develop a correction factor addressing nonͲ
metered water usage.
DIURNAL DEMAND CURVE DEVELOPMENT
Average day and maximum day diurnal demand curves were developed and used
for model calibration and the EPSs. Approximately one week of water
production, pumped flows, and tank level data was used to calculate the hourly
system demands and net changes in tank storage volume for both demand
conditions.
MODEL CALIBRATION
Fire flow field tests and information on the concurrent boundary conditions (i.e.,
flow and pressure into the system, and storage tank levels) were used to
Water System Hydraulic Model
calibrate the model. The model calibration goal was to simulating 95% of the fire flow tests to within 5 pounds per
square inch (psi) of the measured values. The model was successfully calibrated 95% of the fire flow tests within 5
pounds per square inch (psi) of the measured static and residual pressures.
WATER SYSTEM EVALUATIONS
The model is being used to evaluate a number of scenarios for improving the Town’s water transmission and
distribution system. Specific scenarios include:
• The Town currently has two water treatment plants, each with a separate service area. The model will be used
to evaluate the capability of the system to operate as a single system. Modeling runs were performed to
identify key performance factors including: approximate water age (i.e., water quality); pressure; fire flow; and
tank refill capabilities. Capital projects and the need for flushing to minimize water age were identified
• The model was also used to evaluate the impacts of taking one of the treatment plants offͲline. The
approximate age of water from the other WTP, pressure differences, and fire flow capabilities of the system
were identified. Specific attention was given to identify areas of “reversed” pipe flow and approximate change
in water age, particularly near the WTP taken offͲline
• Using the model, a water storage analysis was performed with the goal of identifying the most logical locations
for future tanks (over a 20Ͳyear period). Specific locations evaluated included sites that meet certain criteria
(i.e., ground elevations, proximity to existing water infrastructure, water demand centers, etc.). Tank refill and
drawdown graphs were generated for a shortlist of sites based on the hydraulic modeling results
• Criteria for looping major transmission deadͲends and locations where the Town should consider looping to
connect major transmission dead ends were identified. Based on this, a prioritized list of projects was
developed considering the overall benefit (i.e., increase fire flows, improved pressures, improved water age,
etc.) and estimated construction costs. Documented water quality complaints were reviewed as part of the
looping considerations.
TRAINING
O’Brien & Gere conducted training of the Town’s staff, during which they were shown how to perform the
following tasks:
Edit information associated with existing pipes including diameter, length, and “C” factor
Edit information associated with junction nodes including elevation and water demand
Edit storage tank, valve, and pump characteristics
Add new pipes, junction nodes, tanks, pumps, valves, and other items
Run the model using different scenarios (e.g., average daily demands, maximum day demands, peak hourly
demands, and fire flows)
Run an Extended Period Simulation (EPS)
Perform water quality analyses
Water System Hydraulic Model (cont’d)
CLIENT
Town of Colonie
LOCATION
New York
REFERENCE
John W. Frazer, Jr. PE
(518) 783Ͳ2750
KEY FEATURES
Extensive use of GIS for
water system piping
configuration and
billing/meter assignments
Field testing for model
calibration (i.e., conducted
40 fire flow tests)
Water model calibration
Water modeling to identify
system deficiencies
Water age analyses and tank
siting investigations
DBP water quality
management plan
Initial Distribution System
Evaluation (IDSE)
Model training
Work sessions throughout
project
in 2006, The American Public
Works Association (APWA)
awarded O'Brien & Gere its
Project of the Year Award
(Environmental / Water
(>$10 million) category) for
the water treatment plant
expansion for the Latham
Water District.
O’Brien & Gere has been providing water system engineering services to the
Town of Colonie, Division of Latham Water, since the 1960s. O’Brien & Gere was
retained to complete a multiͲphased Water System Comprehensive Facilities and
Water Quality Management Plan in order to provide a “roadmap” for nearͲterm
and longͲterm development and operation of the Town’s water infrastructure.
Two phases of the work have been completed and the third is underway. Major
tasks include the following:
DISTRIBUTION OPERATIONAL STRATEGY REVIEW
O’Brien & Gere coordinated with Latham Water to confirm the current
operational strategy and the basis of this strategy for pumping stations and
storage tanks throughout the distribution system. This strategy was summarized
in a memorandum and used as reference for developing system changes that
address current operational limitations and plan for future operational changes
to improve water quality or delivery pressure.
DISTRIBUTION SYSTEM MODEL DEVELOPMENT
GIS mapping of pipelines and facilities was used to generate a hydraulic model
network in MWH Soft’s InfoWater which included all piping (approximately
21,000 pipes or 451 miles) excluding water service lines and hydrant
connections.
EXISTING WATER DEMAND ALLOCATION
Water plant production records and meter billing data were used to establish
overall system water use and demands (individual water meter billing records
from year 2000 to present). Assigned meter billing data to nearest pipe using GIS
and model software features.
DIURNAL CURVE DEVELOPMENT
Diurnal curves were developed using one week of historical circular chart data on
water production, pumped flows and water storage tank levels.
HYDRAULIC MODEL CALIBRATION
The model was calibrated with the goal of predicting fire flow tests to within 5
psi of the measured static and residual pressures. The Town compiled the age of
the piping in the system and the material, which was used in the initial CͲfactor
assignments.
IDENTIFICATION OF SYSTEM STORAGE DEFICIENCIES
The adequacy and performance of the storage within the water distribution
system was assessed to identify the recommended storage to meet nearͲterm
and longͲterm needs, volume of useable storage within the system for
Water System Comprehensive Facilities
and Water Quality Management Plan
K:\Business Development\PID\WR\33467.doc
Water System Comprehensive Facilities
and Water Quality Management Plan (cont’d)
equalization, fire protection and emergencies, and the turnover rate in the tanks and retention time in the water
system, and acceptability in terms of water quality. For water quality purposes, hydraulic modeling was conducted
to assess the “turnover” of the storage tanks and water age on an average daily basis.
DISINFECTION BYPRODUCT MANAGEMENT
The water age calculations were used in conjunction with projected Total Trihalomethane (TTHM) and Haloacetic
Acid (HAA5) data developed using Simulated Distribution System (SDS) testing to project locations in the
distribution system where regulatory compliance is projected to be a problem.
HYDRAULIC ANALYSES
As part of this study, several items were investigated to assess adequacy and performance of the water system:
• Recommended storage to meet nearͲterm and longͲterm needs
• Identified location of recommended storage within the distribution system
• Identified volume of useable storage within the system for equalization, fire protection and emergencies
• Evaluated turnover rate in the tanks and retention time in the water system, and acceptability in terms of water
quality
• Defined accuracy of the diurnal curves for current and future design conditions
• Identified localized areas where water system pressures are excessive or inadequate, and potential need to
redefine pressure zone boundaries
• Evaluated system’s ability to meet fire flow requirements
• Identified critical water system weaknesses
• Identified areas with high pipeline break frequency
• Identified areas with more frequent water quality or pressure complaints
• Identified adequacy of existing water quality monitoring sites and selection of future sites for Stage 2 D/DBP
monitoring
MODEL MAINTENANCE
Currently working with MWH Soft staff to assist Latham Water to develop procedures for maintaining their model
to reflect piping for new development in the Town as well as updating existing information.
SOFTWARE TRAINING
Assisted MWH Soft staff with 2Ͳday training program for InfoWater in 2006 at Latham Water’s offices. Discussed
specifics of how Latham Water’s model was constructed, assumptions regarding data, patterns and curves for
demands and pumps, etc.
CLIENT
Jackson Township Municipal
Utilities Authority
LOCATION
Jackson Township, NJ
REFERENCE
Dave Harpell,
(732) 928Ͳ2222
KEY FEATURES
Selected InfoWater modeling
software with input from the
Authority
Developed “all pipes” water
system model using GIS files
and addressed connectivity
issues
Geocoded water billing data
and allocated to model
Identified locations for fire
flow tests and used field data
to calibrate water system
model
Conducted modeling analyses
for tank siting, pumping, and
transmission improvements
Analyzed capital improvements
for future developments
Conducted modeling to define
water age
Conducted source trace
analyses to assess water
quality complaints
O’Brien & Gere completed an update to O’Brien & Gere’s 2001 Water System
Master Plan. The update of the 2001 water master plan included the following
tasks:
AQUIFER SOURCE OPTIMIZATION
The 2001 Master Plan identified available groundwater sources based upon
USGS information. O’Brien & Gere assessed the potential for use of these
supplies by JTMUA. O'Brien & Gere reviewed NJDEP acceptability and the
practical impact of critical areas limitations. We also reviewed current
withdrawals and identified options that allow more complete utilization of
JTMUA's current allocation. A review of the data was performed to assess the
availability of the aquifer at alternate location(s). This review also included an
assessment of historical problems associated with loss of capacity over time
from the existing wells.
WATER MODEL DEVELOPMENT
Using MWH Soft’s InfoWater, O’Brien & Gere developed an “all pipes” model of
the water system using GIS files provided by the Authority.
CIP DEVELOPMENT AND PRIORITIZATION
O'Brien & Gere used the water model to review the adequacy of the prior master
plan to address updated water demands and development plans. O'Brien & Gere
provided the Authority with an updated Capital Improvement Plan (CIP), with
detailed identification of project schedules through year 5, and general
identification of project schedules though years 5Ͳ20.
LEGLER WATER SYSTEM MASTER PLAN
Acting on its commitment to provide a safe, efficient, and dependable water
supply and adequate fire protection for its customers, the Jackson Township
Municipal Utilities Authority (JTMUA) retained O’Brien & Gere to complete a
master planning study for the Legler Water System. The planning study consisted
of the following tasks:
• Evaluated water demands
• Assessed the adequacy of supply sources
• Analyzed water treatment facilities
• Evaluated piping and finished water storage
• Reviewed system operation and management practices
• Assessed facility compliance with Federal and State regulations
• Estimated costs for improvements
• Prepared a report documenting the study findings
Water System Modeling and Master Plans
NCM10/MUN/BTMUA_WaterQualityModel /JacksonMUA.doc
ADDITIONAL MODELING SERVICES
Additional modeling services in support of the CIP improvements included:
• Water quality concerns for Bartley Road Tank area
• Operation of Vista Center water storage tank and outages at WTP’s
• Water age and capacity analysis for Jackson Valley development and alternative transmission main connections
• Whitesville Road storage tank sizing and siting
Water System Modeling and Master Plans (Continued)
CLIENT
Town of Louisa, VA
LOCATION
Town of Louisa, VA
REFERENCE
Brad Humphrey
(540) 967Ͳ1400
KEY FEATURES
Developed “all pipes” model
of water system
Performed tracer study and
field testing for model
calibration
Water model calibration
Used GIS to allocate existing
demands
Water modeling to identify
system deficiencies and
prioritized list of
improvements
Cost estimating
Water age analyses and
water quality management
plan
Unidirectional flushing
program
The Town of Louisa purchases water wholesale from Louisa County Water
Authority (LCWA) and distributes it through TownͲowned facilities. The Town and
LCWA were issued a Notice of Violation (NOV) for exceeding the maximum
contaminant level (MCL) for haloacetic acids (HAA5), which are regulated
disinfection byproducts (DBPs). O’Brien & Gere conducted a study of the
inadequacies in the water distribution systems that may be contributing to the
elevated level of DBPs. The study objectives included:
• Developing a better understanding of the water quality concerns for the water
distribution system
• Identifying system deficiencies to be corrected
• Conducting a tracer study
• Developing a uniͲdirectional flushing program
• Developing a CIP of water quality improvements
The major tasks included:
MODEL DEVELOPMENT
Converted existing WaterCAD hydraulic model of the water distribution system to
an “all pipes” InfoWater model.
DEMAND ALLOCATION
Allocated water demands using billing data to accurately depict water use
throughout in the system (geocoding based on billing and parcel data).
FIELD SERVICES
Conducted 10 fire flow tests and a fluoride tracer study (one month duration) to
obtain water system information needed to calibrate the steady state and EPS
water models. Conducted fluoride tracer study for one month for use in EPS
model calibration.
MODEL CALIBRATION
Calibrated water model using fire flow test data (static scenario), as well as tank
level and tracer study data for the EPS scenario.
CAPITAL IMPROVEMENTS
Conducted analyses to identify system deficiencies and improvements that would
benefit water quality. Conducted source trace analyses and water age analyses to
understand system limitations and to generate a prioritized list of improvements
which included: installation of automated flushing devices, tank mixers,
decommissioning storage tanks, deadͲend elimination, unidirectional flushing
program, water main replacement/rehabilitation, and satellite treatment at
springs.
UNIDIRECTIONAL FLUSHING PROGRAM
Developed a unidirectional flushing program for the entire water system. Printed
output included mapping for each setup, valves to be operated, duration of
flushing, etc.
Waterworks Improvements / Disinfection
Byproducts Study
NCM10/MUN/BTMUA_WaterQualityModel Louisa.doc
LOCAL PROJECTS
360° Engineering and Project Delivery Solutions
Other Recent O'Brien & Gere Local Projects & References
Project
Client
Contact Name
Contact Phone
Number
Bedford Water Treatment Plant
Town of Bedford
Mr. Kevin Winn
914Ͳ666Ͳ7669
Camp Edward Isaacs WWTP Upgrade
Central Queens YMͲYHWA
Mr. Rick Lewis
718Ͳ225Ͳ6750
Clearpool WWTP Upgrade
Clearpool, Inc.
Ms. Heather Boylston
845Ͳ225Ͳ8226
CSD#2 WWTP Upgrade
CSD#4 WWTP Upgrade
CSD#7 WWTP Upgrade
Town of Carmel
Mr. Robert Vara
845Ͳ628Ͳ1500
CKWIC Stormwater Retrofit Report
Town of Somers
Ms. Sabrina CharneyͲHall
914Ͳ277Ͳ5366
Fox Lane Campus WWTP Upgrade
Bedford Central School District
Mr. Thomas Briggs
914Ͳ241Ͳ6015
Hunters Glen WWTP Upgrade
Hunters Glen Masters Association, Inc.
Mr. Kevin Cullen (Heritage Management, Inc.)
914Ͳ276Ͳ2509
Lewisboro ES WWTP Upgrade
Katonah ES Sand Filter Replacement
Increase Miller ES WWTP Upgrade
KatonahͲLewisboro School District
Mr. Thomas Psomas
914Ͳ763Ͳ7244
Somers HS WWTP Upgrade
Somers IS Pump Station
Somers Central School District
Mr. Kenneth Crowley
914Ͳ277Ͳ2410
Thunder Ridge WWTP Upgrade
Patterson Center, LLC.
Mr. Robert Lusardi (Daniels & Porco)
845Ͳ225Ͳ8404
Yonkers Force Main Surge Analysis
Westchester County Department of
Public Works
Mr. Angelo Sgobbo
914Ͳ995Ͳ8113
QUALIFICATIONS OF THE TEAM ŇSECTION 3
360° Engineering and Project Delivery Solutions
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 3
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Team.doc
O’Brien & Gere has
assembled a project team
of personnel that are
seasoned in water system
modeling with decades of
experience developing
water quality models
similar to the Village of
CrotonǦonǦHudson using
InfoWater software.
Modeling
Brian Edwards, PE
Village
of
CrotonǦonǦHudson
Project Officer
Lowell A. Kachalsky, PE
Project Manager
Rick Gell, PE
QA/QC
Thomas Dumm, PE
SECTION 3 – QUALIFICATIONS OF THE PROJECT
TEAM
OǯBrien Ƭ Gere proposes an exceptionally qualified
project team whose experience mirrors the Village of
CrotonǦonǦHudsonǯs needsǤ Understanding that the
work required under this projectǡ we have assembled
a team that is exceptionally well qualified to complete
the work started by the Village of CrotonǦonǦHudson
and provide a functional and calibrated InfoWater
modelǤ Our Team is built on a strong local foundationǡ
with proven project management and client
accountability from our Hawthorneǡ New York officeǤ
Our project team is made up of professionals with a
strong background in water model development and
calibrationǡ GIS integrationǡ water facilities planningǡ
water qualityǡ training and related services that may
be assigned under this contractǤ
ORGANIZATION
The following organization chart depicts the
personnel assignments and lines of communication
for proposed project team membersǤ
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 3
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Team.doc
KEY PERSONNEL
Project Officer, Lowell A. Kachalsky, PE Ǧ directs
both large and small comprehensive water and
wastewater programs involving multidisciplinary
teams of engineers and scientistsǤ His ͵Ͷ years of
experience includes having directed large scale water
quality study and modeling projects for
municipalitiesǤ MrǤ Kachalsky has a thorough
understanding of state and federal regulatory issuesǡ
provides technical advice to project and technical
managers and other professionalsǡ and assumes
responsibility for the technical completeness and
accuracy of all work for which he is the project officerǤ
In his role as Project Officerǡ MrǤ Kachalsky will
provide direction and project control and will also
maintain contact with the Village of CrotonǦonǦ
Hudson for the duration of the projectǤ
Project Manager, Rick GellǦbrings ͵ͳ years of water
resources experienceǡ mostly on projects in New York
StateǤ He has served as project manager for a wide
array of water resources projects including master
plansǡ water system modelingǡ source developmentǡ
hydraulic analysisǡ pilot studiesǡ water treatment
facility designǡ water treatmentǡ process evaluationsǡ
pumping stationsǡ water transmission and storageǡ
instrumentation and emergency planningǡ process
controlǡ sludge managementǡ corrosion controlǡ surge
analysis and water rate analysisǤ
Lead Modeler, Brian Edwards Ȃ MrǤ Edwards has
more than ͳͳ years of engineering experience in the
area of water resources engineering including
hydraulic modelingǡ field testingǡ and
evaluationsȀsimulationsǡ pump station designǡ storage
tank designǡ treatment plan designǡ
Mr. Edwards’ water planning projects have
routinely included use of InfoWater software in
performing water demand projections; model
development and calibration; staff training; field
services; model analyses; capital improvements;
water quality analyses, IDSE plans; selection of
IDSE monitoring sites; tank sizing and siting;
pumping station siting, sizing, and condition
assessments; hydraulic modeling of distribution
systems; cost estimating; and prioritizing capital
projects.
QA/QC, Thomas Dumm – brings to the team water
modeling experienceǡ which is both extensive and
exhaustive and includes participation l of the most
programs listed in Section ͵ of this proposal. MrǤ
Dumm has over ʹʹ years of experience exclusively in
developing comprehensive models and infrastructure
planning programs for large and small water and
wastewater systemsǤ
O’Brien & Gere’s proposed personnel have
extensive experience in the areas important
to CrotonǦonǦHudson for successful
completion of this project:
Experience developing similar water
models
Experience with model development and
calibration using InfoWater
Creative, tested and proven approaches
in developing improvements to correct
system deficiencies
Extensive New York State experience
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 3
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Team.doc
PROJECT TEAM RESUMES
Individual resumes for project team personnel are
available immediately following this sectionǤ
360° Engineering and Project Delivery Solutions
TECHNICAL EXPERTISE
Water resources
Water quality planning
Water and wastewater master planning and
design
Engineering services during construction
Membrane filtration (water and wastewater)
Water reuse
Municipal wastewater
CSO sewerage and drainage
PROJECT ASSIGNMENT
Project Officer
YEARS OF EXPERIENCE
EDUCATION
M Eng/1980/Environmental Engineering;
Manhattan College
B Eng/1977/Civil Engineering; Manhattan College
PROFESSIONAL REGISTRATION
Professional Engineer: CT, MI, NJ, NY, PA
PROFESSIONAL AFFILIATION
American Society of Civil Engineers
American Water Works Association
Westchester Water Works Conference
Water Environment Federation, National and
Metropolitan Chapter
The Municipal Engineers of the City of New York
Lowell AǤ Kachalskyǡ PE
Vice President
MrǤ Kachalsky has more than ͵͵ years of professional engineering
experience
in
municipal
wastewater
managementǡ
water
resourcesǡ and industrial pretreatmentǤ He has performed both
water and wastewater master planning and designǤ MrǤ Kachalsky
provides program direction to engineers and scientists engaged in
various engineering projectsǤ Under his direction project teams
developǡ evaluateǡ and prepare design documents to support costǦ
effectiveǡ environmentally sound engineering solutionsǤ Projects
have involved coordination and management of multiǦdisciplined
teams comprised of engineersǡ specialistsǡ support disciplinesǡ
and consultantsǤ MrǤ Kachalsky is also currently responsible for
major business development in the Metropolitan New York City
areaǡ and also heads the Hawthorne office for the firmǤ
REPRESENTATIVE PROJECTS
Water Resources
Participated in studies and design work for municipal and
industrial water resources projectsǤ Representative projects have
included CǦFactor Testing for the Villages of Elmsford and
Scarsdaleǡ NYǤ Leak Detection Surveys have been performed forǣ
Pelhamǡ NYǢ Rye Playlandǡ Westchester CoǤǡ NYǢ and the Bronx
River Roadǡ Yonkersǡ NYǤ
Town of Bedford, NY, Project Officer – New ʹ MGD
microfiltration water treatment plantǤ Source waters include the
Delaware Aqueduct and Cross River Reservoir ȋNYC
SuppliesȌǤWorking for the Town and the Town Engineerǡ OǯBrien
Ƭ Gere leading the design and selection of microfiltration
membrane system as well as the electricalǡ IƬC and HVAC designsǤ
Monmouth Consolidated Water Company Designed and
prepared contract drawingsǡ specifications and construction cost
estimates for a ͷ MGD raw water intake on the Manawquan RiverǤ
Also coordinated and obtained all required Stateǡ Federal and
Corps of Engineer permitsǤ The project site was located in
designated wetlands and bog turtle habitatǡ an endangered
speciesǡ whereby permits required the design to include
protection of the environmentally sensitive areasǤ
Shore Water Company – Designed and prepared contract
documents and construction cost estimates for construction
360° Engineering and Project Delivery Solutions
a ʹͲͲ GPM wellǡ well houseǡ and chlorination facilitiesǤ
Work also include obtaining construction permitǤ
Middlesex County Utility Ȃ Contributed to the
preparation of the report on Potable Water System
Planningǡ and financial analyses of the alternatives
including the impacts of bondingǡ operation and
maintenance and deferred constructionǤ Provided
hydraulic analyses of several transmission main and
pump station alternativesǤ The transmission main
alternatives were ͳ miles in length and ranged in
size from ʹͶ to ͷͶ inches in diameter and some
involved pump stations ranging in size from ͳͲ to Ͷͷ
MGDǤ
City of Norfolk, VA Ȃ Designed improvements to
solids collection facilities for WPCPǤ Work involved
design and retrofitting new submersible pumps for
twelve existing sedimentation basins to remove
settled solidsǤ The work also included design of two
inground pumping stations to transfer solids removal
from the sedimentation basins to new thickener
facilitiesǤ
Shorelands Water Company Ȃ Designed and
prepared contract drawings and construction cost
estimates for a backwash recovery system for two ͷ
MGD WTPs requiring iron removal and backwash
water settled in lagoonsǤ Due to new restrictions on
groundwater withdrawalsǡ the Company desired to
recover as much settled backwash water as possibleǤ
The design involved a pump station and floating
skimming facility to operate at various water levels in
the lagoon without drawing in iron sludgeǤ
Village of Pleasantville, NY Ȃ Prepared a water rate
study and water system adequacy studyǡ which
included a necessary detailed economic analysis of
the Village̵s water budget in order to recommend
revised water rates to raise revenue to run the water
system and fund projects recommended in the
adequacy studyǤ
Westchester County, NY Prepared reports for
emergency interconnection of water systems with
Westchester County and the effect of Federal
trihalomethane regulations on the CountyǤ
West Keansburg Water Company, NJ Prepared
contract drawingsǡ technical specifications and
construction cost estimates for expansion of Water
Treatment Plant NoǤ ʹ requiring an increase in supply
in order to have adequate firm capacity to insure a
supply of potable water and fire protection during
period of maximum demandǤ Required the addition of
a well and well houseǡ a clarifier and pressure filterǤ
Village of Tarrytown, NY Ȃ Inspected construction
and startǦup of an ͺͲͲ GPM water booster pumping
stationǤ
Fort Dix, NJ Designed improvements to a ʹ MGD
water filtration plant including a continuous sludge
withdrawal system from settling tanksǡ and design of
a pumping station to deliver decanted water from the
existing sludge holding tank to the head end of the
plantǤ Plansǡ specifications and construction cost
estimates were prepared using Corps of Engineers
guidelines and standardsǤ
Water System Locating and Mapping:
Grasslands Reservationǡ Westchester Countyǡ NY
Tibbets Brook Parkǡ Westchester Countyǡ NY
Municipal Wastewater
Village of Mamaroneck Department of
Environmental Facilities, Pressure Outfall
Pipeline for Sewage Treatment Plant, Westchester
County, NY, Project Officer Ȃ Completed final design
of ǡͲͲͲ lf of ͲǦinch diameter pressure outfall
pipelineǡ which included hydraulic evaluationsǡ
subaqueous harbor crossingǡ air release facilityǡ and
extensive rock removalȀblasting evaluationsǤ The
design utilized preǦstressed concrete cylinder pipe
ȋPCCPȌǤ The pipeline profile provided for full pipe
flow under the harborǡ with a controlled break to
atmospheric pressure as the pipeline rises back above
sea levelǡ then down below sea level for discharge into
Long Island SoundǤ This design incorporated features
to allow piggingȀflushingǡ air intake and air releaseǤ
Design profile minimized subǦaqueous rock
excavationǡ and established blasting criteria to protect
nearby structuresǤ
LOWELL A. KACHALSKY, PE
360° Engineering and Project Delivery Solutions
Village of Mamaroneck Department of
Environmental Facilities, Siphon Area Interceptor
System, Westchester County, NY, Project Officer Ȃ
Completed final design of siphon area interceptor
systemǡ including ͳǤ͵ MGD and ͷǤͳ MGD sewage
pumping stationsǡ emergency power facilitiesǡ ͵ǡͶͲͲ lf
of ͺǦ to ʹͶǦinch gravity sewers and ʹǡͲͲ lf of ͳͲǦ and
ͳǦinch force mainsǢ included pipe bridge crossingǡ
features for enhancing aesthetics of construction in
park lands and residential neighborhoodsǡ odor
controlǡ and all below ground constructionǤ
New York City Department of Environmental
Protection (NYCDEP) Long Term Control Plan
(LTCP) for Combined Sewer Overflow, New York,
NY, Project Manager Ȃ Member of the Joint Venture
team for a ̈́ʹͷ million program to develop a Long
Term Control Plan ȋLTCPȌ for CSO abatement in New
York CityǤ Tasks involve extensive field investigationsǡ
sewer system monitoringǡ water quality monitoringǡ
development of landside and water quality
mathematical modelsǡ evaluation of engineering
alternativesǡ and conceptual designs of recommended
solutionsǤ Based on costǦbenefit analysesǡ the project
will optimize existing infrastructure to fulfill the Cityǯs
responsibilities in New York Harbor for achieving the
fishableȀswimmable water quality goals of the Clean
Water ActǤ Ultimately this program will be
coordinated with other water quality planning
programs and designȀconstruction projectsǡ and the
LTCP will be integrated with the wet weather
operation plan of the ͳͶ wastewater pollution control
plantsǤ
New York City Department of Environmental
Protection, Clearpool, Hunters Glen, and Carmel
Sewer District No. 2 No. 4, and No. 7, KatonahǦ
Lewisboro CSD (3 plants), Somers CSD (2 plants),
Camp Edward Isaacs, Thunder Ridge, and Bedford
CSD Wastewater Treatment Plant Regulatory
Upgrades, New York, NY, Project Manager Ȃ
Completed design of upgrades to four treatment
plants in the Croton and Delaware WatershedsǤ
Prepared the facility plan reportsǡ and design
specifications and drawingsǡ coordinated the bidding
processǡ and submitted bidding documents for the
construction contractǤ Prepared construction and
OƬM cost estimatesǤ These projects were completed
under the New York City Watershed Memorandum of
Agreement ȋMOAȌ and NYCDEP regulatory upgrade
programǤ The MOA established the New York City
Watershed Rules and Regulationsǡ which set new
mandatory requirements for existing wastewater
treatments plants that discharge within the
watersheds of the City of New YorkǤ
New York City Department of Environmental
Protection, Project Manager Reviewed the
NYCDEP̵s compliance with an order on consent for
the North River WPCP ȋͳͲ MGDȌǤ Project involved
review of a multitude of water conservation and
sewer flow monitoring initiativesǡ odor control
upgradesǡ plant influent and effluent flow monitoring
functions and OƬM proceduresǡ engine exhaust stack
testsǤ
CSO Sewerage and Drainage
New York City Department of Environmental
Protection (NYCDEP), Hunts Point InǦLine Storage
(ILS) Prototype Facility, Project Manager
Developed and designed an innovative technology for
combined sewer overflow abatement. The project
utilizes inflatable dams installed in existing sewer
lines. The dams are controlled to temporarily store
CSO in excess of what can be treated by the
downstream sewage treatment plant until a storm event
has passed and flow has receded to acceptably low
levels. The dams have been installed at two sites,
Metcalf Avenue and Lafayette Avenue. At Metcalf
Avenue, two inflatable dams are installed in each 10 ft
high by 8 ft wide barrel of an existing double-barrel
reinforced concrete box culvert combined sewer. The
control structure at this location is completely below
ground. At Lafayette Avenue one inflatable dam is
installed in an existing 5 ft 3 inches wide by 6 ft high
reinforced concrete box culvert sewer. The control
vault at this location is located adjacent to the sewer in
the bed of Lafayette Avenue. Wastewater level
monitoring equipment has been installed at 8 sites.
These monitors will signal the control panels when
sewage flows have risen to a point that indicates that a
rain event has begun that may result in flow that
exceeds treatment plant capacity. The control panel
will then initiate dam inflation. When sewage flow
levels have subsided, the level monitors will signal the
control panels to deflate the dams. One monitor will be
installed upstream of each dam. If water surface
elevations upstream of the dams rise to a point where
they threaten to surcharge, these monitors can trigger
an automatic dam deflation. The second function of
these monitors is as a data collection device to enable
analysis of the effectiveness of the inflatable dams
regarding the volume of CSO retained for each storm.
The program is part of the Jamaica Bay Combined
Sewer Overflow Facilities Planning Project.
LOWELL A. KACHALSKY, PE
360° Engineering and Project Delivery Solutions
Bridgestone and Sumitomo Factories, Japan,
Inspector Shop witness testing of inflatable dam
carpetsǤ Witnessed tongue tearǡ wearǡ tensile and
adhesion testsǤ Visited factories and examined where
factory quality control tests were done and how the
Clientǡ in the futureǡ should witness manufacturer of
the dam carpets and subsequent shop witness testsǤ
There are differences in Japan and ASTM standards
that required coordinationǤ
New York City Department of Environmental
Protection (NYCDEP), Jamaica Bay Combined
Sewer Overflow Facilities Planning Project,
Project Manager Ȃ Managed major New York City
CSO project ȋdrainage area of ͷ͵ǡͲͲͲ acres and ͳͶ
tributariesȌǡ which includes evaluating existing sewer
system ȋtwenty inǦline flow monitors in place for four
monthsȌǡ several pumping stations and four treatment
plants ȋConey Island WPCP ͳͲͲ MGDǡ Jamaica WPCP
ͳͲͲ MGDǡ ʹth Ward WPCP ͺͷ MGDǡ Rockaway WPCP
Ͷͷ MGDȌǡ intensive water body and sewer system
sampling program ȋthree boats sampling five days per
week for three months and five rainfalls sampled at
ten sewer locationsȌǡ coordination of SWMM sewer
modeling and water body mathematical modeling
effortsǡ reviewing applicable abatement technologiesǡ
overall problem assessmentǡ impact of existing
WPCPsǡ recommendation of system improvements
and preliminary design for a below grade ͵Ͷ million
gallon CSO retention tankǤ Prepared facility planning
construction and OƬM cost estimatesǤ Participated in
OMB value engineering work shop sessionsǤ Jamaica
Bay is part of the Gateway National Recreation Area
and is a National Wildlife RefugeǤ
New York City Department of Environmental
Protection, (NYCDEP), North CSO Storage Facility,
NY, Project Manager – Completed conceptual design
for the Fresh CreekǦNorth CSO offǦline storage facility
in the ʹth Ward POTW service area in Jamaica Bay
consisting of $300M, 34 MG CSO storage facility and
sewers. This design required reconfiguration of over
ͻǡͲͲͲ ft of large diameter sewersǡ six internal storage
basinsǡ eight ͺ ft x ͳͲ ft catenary screensǡ floatables
containmentǡ and hypochlorite disinfection capabilityǤ
Key design operating parameters incorporated into
the design includedǣ
Capability to process at a ʹͷͲͲ MGD rateǡ even
with storage basins fullǡ at the onset of a storm
Six independently operable internal storage basins
Minimum availability of driving head due to tidal
cycles at the discharge end of the facility
Use of disinfected effluent from the ʹth Ward
WPCP for storage facility washdown
Provision for recreational ball fields and park
maintenance building above grade
Continuous ventilation of the screenings area at ͳʹ
air changes per hoursǡ and similar ventilation of
the storage basins when occupied or filled with
screened wastewater
Odor control equipment ȋcarbon adsorbers and
wet scrubbersȌ for minimizingȀeliminating odor
exhaust to the adjacent neighborhoods
Two independent electric service connections for
redundancy
Atlantic City Sewerage Company, NJ Prepared a
report evaluating the impacts of the proposed Atlantic
City Convention Center and Railroad Terminal on the
existing sanitary sewerage systemǡ and recommended
proposed new sewerage facilitiesǤ Work required
studying sewerage service areas and capacity design
flows following existing zoning requirementsǡ
studying impact of future developmentǡ review of
existing sewer capacitiesǡ review of a proposed
sewerage scheme to serve the Convention Centerǡ
technical and construction cost evaluation of several
sewerage schemesǡ and recommendationsǤ
Atlantic City Sewerage Company, NJ, Resident
Engineer Managed two sewer projects involving
ͳͶǦǡ ͳǦǡ and ʹͲǦinch pipe within a half mile of streetsǤ
Suffolk County Department of Public Works, NY Ȃ
Prepared design and contract drawingsǡ construction
cost estimatesǡ and specifications for ͳǡͲͲͲ ft of ͳͺǦ
inch force main transporting secondary effluentǡ and
ͳͲǡͲͲͲ ft of ͳͲǦinch force main transporting raw
sewageǤ
Suffolk County Department of Public Works, NY
Prepared design and contract drawingsǡ construction
cost estimatesǡ and specifications for a new ͳǤʹ MGD
sewage pumping station to serve a new sewage
treatment plantǤ
LOWELL A. KACHALSKY, PE
360° Engineering and Project Delivery Solutions
Village of Pleasantville, NY Prepared designǡ
construction drawingsǡ and construction cost
estimates for ǡͲͲͲ ft of storm sewers of various sizesǤ
Village of Tarrytown, NY Ȃ Inspected the
construction of sewerage and drainage facilities for
large condominium projectsǤ Represented the
engineering interests of the Village at Planning Board
meetingsǤ
Village of Pleasantville, NY Ȃ Prepared an
engineering report and construction cost on the
hydraulic and structural limitations which led to
failure of a one mile long stretch of ͺǦinch sanitary
sewerǤ Presented results to the New York State
Department of Environmental ConservationǤ This
effort resulted in the Village receiving a grant for
reconstruction of the sewerǤ
Westchester County, NY Prepared design and
drawingsǡ contract documents and construction cost
estimates for various drainage culvert construction
projectsǤ
360° Engineering and Project Delivery Solutions
TECHNICAL EXPERTISE
Water system security
Water system master plans
Water transmission and storage
Corrosion control
Wastewater system design
I/I Studies
Sludge management studies
Site development/ redevelopment
PROJECT ASSIGNMENT
Project Manager
YEARS OF EXPERIENCE 30
EDUCATION
BS/1979/Civil Engineering; Syracuse University
PROFESSIONAL REGISTRATION
Professional Engineer: NY
SPECIAL TRAINING
O’Brien & Gere Project Management Boot Camp
PROFESSIONAL AFFILIATION
Tau Beta Pi
Chi Epsilon
American Water Works Association
New York Section AWWA Registration
Committee and Program Committee
Richard EǤ Gellǡ PE
Senior Managing Engineer
MrǤ Gell has more than ͵Ͳ years of experience and is
responsible for marketingǡ supervisingǡ budgetingǡ
schedulingǡ and implementing complexǡ multi phase
projectsǤ He has served in an advisory role in master
plansǡ water system modelingǡ source developmentǡ
hydraulic analysisǡ pilot studiesǡ water treatment
facility designǡ water treatmentǡ process evaluationsǡ
pumping stationsǡ water transmission and storageǡ
instrumentation and emergency planningǡ process
controlǡ sludge managementǡ corrosion controlǡ surge
analysis and water rate analysisǤ
REPRESENTATIVE PROJECTS
Town of Colonie, Division of Latham Water
District, Water System Master Plan, Colonie, NY,
Project Manager Ȃ Performed comprehensive
modeling of water distribution systemǡ for purposes
of evaluating distribution system water quality issuesǡ
including disinfection byproductsǡ low chlorine
residualǡ and red water complaintsǤ The model will be
used to perform the initial distribution system
evaluation ȋIDSEȌ required in connection with the
upcoming Stage ʹ DȀDBP RuleǤ The model was
developed using InfoWaterǡ by MWH Softǡ IncǤǡ and
was designed to be fully integrated with the Townǯs
GIS systemǤ
Town of Bethlehem, Water Supply
Study/Improvements, Bethlehem, NY, Project
Manager Ȃ Completed a water supply study and
system improvementsǤ Work includes projection of
future demand versus available supplyǡ evaluation
and ranking of available sourcesǡ safe yield evaluation
of existing supplyǡ detailed evaluation of transmission
and distribution issuesǡ and water treatment plant
evaluation with recommendations for improvementsǤ
Prepared design of ͳͲMGD water treatment plant
upgrades including filter bottom replacements and
media replacementǤ
City of Johnstown, Water System Evaluation,
Johnstown, NY, Project Manager Ȃ Managed a
comprehensive distribution system evaluation
including development of a plan to replace an open
finished water reservoir and implementation of a
RICHARD E. GELL, PE
360° Engineering and Project Delivery Solutions
centralized SCADA system with a radio based
communication networkǤ The scope included
development of a water system hydraulic model
utilizing HʹͲMap by MWH Softǡ IncǤ The calibrated
model was used to evaluate storage tank options for
replacing the existing reservoirǤ Criteria used to
evaluate the impacts including pressure changesǡ flow
reversalǡ estimated fire flowǡ and water quality ȋiǤeǤǡ
water ageȌǤ
Town of Colonie, Division of Latham Water
District, Water System Master Plan, Colonie, NY,
Project Manager Ȃ Performed comprehensive
modeling of water distribution systemǡ for purposes
of evaluating distribution system water quality issuesǡ
including disinfection byproductsǡ low chlorine
residualǡ and red water complaintsǤ The model will be
used to perform the initial distribution system
evaluation ȋIDSEȌ required in connection with the
upcoming Stage ʹ DȀDBP RuleǤ The model was
developed using InfoWaterǡ by MWH Softǡ IncǤǡ and
was designed to be fully integrated with the Townǯs
GIS systemǤ
Town of Vestal, Water Storage Evaluation, Vestal,
NY, Technical Review Ȃ Performed comprehensive
evaluation of municipal water supply and distribution
systemǤ Distribution system comprises ͳ͵ separate
pressure zonesǡ and includes ͳͶ water storage tanks
and ͺ booster pumping stationsǤ The study evaluated
the adequacy of existing storage to meet normal and
emergency demandsǡ and the impact that additional
storage would have on energy ȋiǤeǤǡ pumpingȌ costsǤ
City of Ithaca, NY, Comprehensive Water Supply
Plan, Ithaca, NY, Project Manager Ȃ Developed a
comprehensive water supply plan to economically
supply water to the greater Ithaca areaǤ Project
integrates three currently independent systems
including the City of Ithacaǡ Cornell Universityǡ and
the Southern Cayuga Lake Intermunicipal Water
CommissionǤ The study focused on optimizing the
transmission and storage of water through extensive
use of a composite Cybernet distribution system
model and economic analysesǤ The systems operate
with over ͳǡͲͲͲ ft in change of static pressure and are
able to realize significant savings in electrical costs
from offǦpeak pumpingǤ The study strategically sited
and sized proposed water storage facilities to
maximize benefits to all three participantsǤ
Hamilton College, Water System Improvements,
NY, Project Manager Ȃ Managed the design and
construction phase services for piping modifications
to improve circulation and mixing of water within the
existing water storage tank to manage water qualityǤ
The improvements also included reconstruction of the
piping at the Control Building and installation of
chlorination equipment to automatically feed chlorine
into the water exiting the water storage tank to
provide an independent means of restoring a free
chlorine residual in the event of an unanticipated
biological reǦgrowth occurrenceǤ
Town of Colonie, Division of Latham Water
District, Relocation of Latham Tank Storage,
Colonie, NY, Project Manager Ǧ Evaluation of
alternatives to facilitate the demolition of an existing
water storage tank and relocate the effective storage
to another locationǤ Ultimately led to the design of a
remote ground storage and pumping systemǤ
Town of Colonie, Division of Latham Water
District, SCADA Link to District Office, Colonie, NY,
Project Manager Ȃ Established a SCADA link at the
Latham Water District Office to facilitate remote
operation of the water treatment plant from the
District OfficeǤ
City of Canandaigua, NY, Water Storage Tank
Improvements, Project Manager Ȃ In order to
provide for greater storage capacityǡ the City planned
to construct two ͶǤͷǦMG preǦcast concrete water
storage tanksǤ The construction of the first ͶǤͷǦMG
AWWA DͳͳͲ Type III preǦcastǡ preǦstressed concrete
storage tank and the demolition of the existing
reservoir was completed in ʹͲͲǤ The corresponding
site work and piping along with controls were
designed to incorporate the second ͶǤͷǦMG storage
tankǡ planned for construction in ʹͲͲͻǤ Also in ʹͲͲͻǡ
the ʹǦMG steel storage tank will be rehabilitatedǡ
including painting the interior and exterior and other
miscellaneous improvements necessary to meet NYS
Department of Health requirementsǤ
City of Rochester, Reservoir Optimization Study,
Rochester, NY, Project Manager Ȃ Conducted a
reservoir optimization study for three open finished
water reservoirsǤ Identified water demand and
storage requirements for City customersǢ developed a
list of alternatives and an alternative screening
processǢ prepared a communication planǢ and
prepared constructionǡ equipmentǡ and operating
costsǤ Organized biǦmonthly workshopsǡ conducted
public meetingsǡ and prepared a report that included
findings and recommendationsǤ
RICHARD E. GELL, PE
360° Engineering and Project Delivery Solutions
Mohawk Valley Water Authority, Water Quality
and Storage Assessment, Utica, NY, Senior
Managing Engineer Ȃ Conducted a thirdǦparty
review of a distribution system water quality and
storage studyǤ This study established recommended
volumes and locations for distribution storage and
strategies for managing disinfection byproductsǤ
OǯBrien Ƭ Gere reviewed interim work products
regarding the appropriateness of the storage for
normal operations and emergencies as well as the
implementation plan for a conversion to chloramines
for residual disinfectant management in the
distribution systemǤ
City of Ithaca, NY, Pumping Station Upgrades,
Ithaca, NY, Project Manager Ȃ Designed upgrades to
the Cityǯs three water distribution pumping stationsǡ
including pump rehabilitationǡ emergency generators
and new chlorination systemsǤ
Town of Colonie, Division of Latham Water
District, Pumping Station Construction, Colonie,
NY, Design Engineer Ȃ Performed construction
services for the MGD Reservoir Raw Water Booster
Pumping Station and the ͳͲ MGD River Road High Lift
Pumping StationǤ
Town of Colonie, Division of Latham Water
District, Final Design Water Transmission Main,
Colonie, NY, Design Engineer Ȃ Performed final
design of ͶǡͲͲͲ ft of ͳǦinch and ͵ǡ͵ͲͲ ft of ͳʹǦinch
water transmission mainǤ Final design and
construction review of ͵ǤͶ MG steel reservoirǤ
Construction review of a ͳͲ MGD high lift pumping
station and a MGD raw water pumping stationǤ
Town of Colonie, Division of Latham Water
District, Water Supply Study, Colonie, NY, Project
Manager Ȃ Completed a water supply study including
water demand analysisǡ water system improvements
requirementsǡ and water rate analysisǤ
Town of Queensbury, Water System Study,
Queensbury, NY, Lead Project Engineer Ȃ
Performed water system study reviewing the existing
water treatment plant services areaǡ transmission
systemǡ and distribution systemǤ The study evaluated
expansion of the facilities to meet the immediate
needs of the Town as well as the expanded service
areas in the surrounding municipalitiesǤ
Town of Queensbury, Water Rate Study,
Queensbury, NY, Lead Project Engineer Ȃ
Performed a water rate study to develop a financing
plan for a proposed water treatment plant expansion
and develop an equitable method of allocating costs
among individual water districts within the TownǤ
Utica Water Supply Board, Storage Tank Design,
Utica, NY, Lead Project Engineer Ȃ Completed
design of two prestressed precast concrete storage
tanks having capacities of ͲǤͷ MG and ͳǤ MGǤ
Mohawk Valley Water Authority, Cybernet
Hydraulic Model, Utica, NY, Project Manager Ȃ
Developed a Cybernet hydraulic model of the Cityǯs
water transmissions system to evaluate distribution
storage and potential replacement of over ʹͲͲ MG of
open reservoirǤ
Island of Aruba, Comprehensive Water Supply
Master Plan, Aruba, Project Manager Ȃ Developed a
comprehensive water supply master plan for the
island of ArubaǤ Study includes development of a
hydraulic model of the transmissionȀdistribution
system and development of a master plan to upgrade
the complete water system to meet projected needsǤ
Project required analysis of over thirty existing
problem areas and integration of future growth
projectionsǤ Key areas of concern included provisions
for fire protectionǡ storageǡ water qualityǡ and low
system pressuresǤ
City of Pittsfield, Major Water System
Improvement Project, Pittsfield, MA, Project
Engineer Ȃ Prepared final designǡ construction
reviewǡ construction inspection and coordination of a
major water system improvement project with a total
construction cost of ̈́ʹͲMǤ Final design of a ͷ MG
prestressed concrete tankǡ ͺǡͲͲͲ ft of ͵ͲǦinch
transmissionǡ two flow control stationsǡ three steel
standpipesǡ six pumping stations and ʹͳǡͲͲͲ ft of ͺǦǡ
ͳͲǦǡ ͳʹǦ and ͳǦinch distribution system pipingǤ
Coordinated design of two water treatment plantsǡ
hydroelectric generatorǡ raw water pipelines and an
instrumentation and control systemǤ
Lowville, Comprehensive Water Supply Study,
Lowville, NY, Project Engineer Ȃ Completed
comprehensive water supply study including water
demand analysisǡ water system improvement
requirementsǡ and water rate analysisǤ
Oneida Indian Nation, Master Plan Development,
New York, Project Engineer Ȃ Prepared a Master
Plan for developing water and wastewater
infrastructure to support long term projected growth
on the NationǤ The study evaluated the utilization of
existing public systems in the regionǡ development of
new systems in cooperation with municipalities in the
RICHARD E. GELL, PE
360° Engineering and Project Delivery Solutions
region and the development of new sovereign
systemsǤ
Town of Queensbury, Comprehensive Water
Supply Project, Queensbury, NY, Project Manager
Ȃ Prepared a mapǡ planǡ and report describing the
design parameters and financial impacts of a
comprehensive water supply projectǤ The report
recommended upgrades to the water treatment plant
to expand its capacity to ͳͷ MGDǡ a new ͳ MG water
storage tank and a new ͳǦinch diameter
transmission pipeline cased under an interstate
highwayǤ
360° Engineering and Project Delivery Solutions
TECHNICAL EXPERTISE
Water transmission and distribution
Water pumping station rehabilitation
Water storage tank design
Water treatment design
Water system hydraulic analysis
PROJECT ASSIGNMENT
Lead Modeler
YEARS OF EXPERIENCE
With O’Brien & Gere: 11
With Other Firms: 0
EDUCATION
BS/2000/Civil Engineering
(Environmental Option); Virginia Tech
PROFESSIONAL REGISTRATION
Professional Engineer: NY
PROFESSIONAL AFFILIATION
American Water Works Association
Brian GǤ Edwardsǡ PE
Sr. Project Engineer
MrǤ Edwards has more than ͳͳ years of engineering experience in
the area of water resources engineering including pump station
designǡ storage tank designǡ treatment plan designǡ hydraulic
modelingǡ field testingǡ and evaluationsȀsimulationsǤ
As a Senior Project Engineer with OǯBrien Ƭ Gereǡ he is currently
responsible for completing contract documentsǡ reviewing
schedule and cost of ongoing projectsǡ and technical overview of
projectsǤ He also reviews completed work under his supervisionǢ
and conducts research and investigation for compiling written
reportsǤ In additionǡ MrǤ Edwards maintains client contact during
studyǡ designǡ and constructionǡ and is responsible for
maintaining client contact following project completionǤ
REPRESENTATIVE PROJECTS
Water Facilities Engineering
Pharmaceutical Client, Hydraulic Analysis, West Point, PA,
Design Engineer Ȃ Analyzed effects of future water demands on
system pressure and supply for the siteǯs potable water systemǤ
Used EPANET computer modeling program for analysisǤ
Recommended necessary supply improvements to the systemǤ
Pharmaceutical Client, Hydraulic Analysis, West Point, PA,
Design Engineer Ȃ Analyzed effects of future water demands on
system pressure and supply for two potable water systems
located within separate buildings on siteǤ Used EPANET computer
modeling program for analysisǤ Recommended necessary supply
improvements to the systemsǤ
Pharmaceutical Client, Hydraulic Analysis, West Point, PA,
Design Engineer Ȃ Analyzed effects of future water demands on
system pressure and supply for a three USPȀWFI water systemsǤ
Used PipeFlo computer modeling program for analysisǤ
Recommended necessary supply improvements to the systemsǤ
Pharmaceutical Client, New Six MG Water Tank, West Point,
PA, Design Engineer Conducted site drainage designǡ logged
new project items into databaseǡ reviewed and filed shop
drawingsǡ specificationsǡ and requests for information for ongoing
engineering projectsǤ
BRIAN G. EDWARDS, PE
360° Engineering and Project Delivery Solutions
Pharmaceutical Client, Water Tank Equalization
Line, West Point, PA, Design Engineer Ȃ Prepared
specification book and design drawingǤ Project
included field cutting existing ʹǤͺ MG tank for the
installation of about ͳͲ ft of pipe and fittings and
repair and disinfection of the tankǤ
Pharmaceutical Client, New Two MG Water Tank,
West Point, PA, Design Engineer Ȃ Prepared
setupȀdesign of mechanical and siteȀcivil bid
packagesǡ specification books and design drawingsǤ
Work includes site drainageǡ gravity pipe layoutǡ
mechanical pipe layoutǡ surface preparationǡ and
underground utility demolitionǤ
Metropolitan Water Board, Pump Station
Hydraulic Energy Evaluation, Onondaga County,
NY, Design Engineer Ȃ Completed field testing of
three water pumping stations to calculate efficiencies
of existing pumpsǡ motorsǡ and drive equipmentǤ Field
test efficiencies were compared to the expected
efficiencies of the equipment and with expected
efficiencies of new equipmentǤ Recommended
improvements to the pumpsǡ motorsǡ drivesǡ and
accessories based on the comparisonǤ
New York State Office of General Services (OGS),
Groundwater Supply and Treatment Collins
Correctional Facility, Collins, NY, Project Engineer
Ȃ Prepared specification book and design drawing for
water treatment process equipmentǤ Project includes
the installation of a green sand filter skidǡ water
softener skidǡ pumpsǡ chemical feed systemsǡ piping
and accessoriesǤ
Andrews Air Force Base, Water Distribution
System Master Plan, MD, Hydraulic Analysis Task
Manager Ȃ Developed hydraulic model of Base water
distribution system using MWH Softǯs InfoWater
software ȋGIS based computer modeling programȌǤ
Evaluated pipe sizes based on future expansion and
prepared short and longǦterm recommendations for
Distribution System Master Plan reportǤ
Erie County Division of Sewerage Management
(ECDSM), a division of the county’s Department of
Environment and planning, Erie County, NYǦ
Project Engineer Ȃ Completed field testing of seven
wastewater pumping stations to calculate efficiencies
of existing pumpsǡ motors and drive equipmentǤ Field
Test efficiencies were compared to the expected
efficiencies of the equipment and with expected
efficiencies of new equipmentǤ Based on the
comparisonǡ recommended improvements to the
pumpsǡ motorsǡ drives and accessoriesǤ
City of Providence, Water Treatment Plant
Expansion, Providence, RI, Project Engineer Ȃ
Evaluated filter under drain alternativesǤ Design
responsibilities included development contract
documents for the replacement of the existing filter
under drainsǤ
Town of Colonie, Vulnerability Assessment
Update, Colonie, NY, Project Engineer Ȃ Prepared
an update to VA reportǡ including update of risk
assessmentǡ construction cost estimate and project
priority rankingǤ
Town of Colonie, Energy Audit, Colonie, NY,
Project Engineer Ȃ Performed an assessment of the
townǯs water and pure water facilities for potential
energy savingsǤ Facilities included in the review
include water distribution pump stations and sanitary
pump stationsǤ The findings of the audit will be
summarized in a reportǡ which will include
recommended changes or improvements and the
estimated energy savingsǤ
Town of Bethlehem, Water System Hydraulic
Model, Bethlehem, NY, Project Engineer Ȃ
Completed development of a water system hydraulic
model utilizing InfoWater by MWH Softǡ IncǤǡ a GISǦ
based software package accessed via ESRI Arc ViewǤ
Specific scope for this project included modeling
software evaluation and selection assistanceǡ model
developmentǡ water demand allocationǡ diurnal
demand curve developmentǡ model calibration based
on field testsǡ and training of Town staff on the use of
the modelǤ The calibrated model was then utilized to
help the Town evaluate a number of transmission and
distribution system scenarios includingǣ impacts on
existing users by proposed large developmentsǢ
location of new tanksǢ transmission main loopingǢ and
balancing between multiple water sourcesǤ Criteria
used to evaluate the impacts including pressure
changesǡ flow reversalǡ estimated fire flowǡ and water
quality ȋiǤeǤǡ water ageȌǤ
BRIAN G. EDWARDS, PE
360° Engineering and Project Delivery Solutions
Town of Bethlehem, IDSE Plans, Bethlehem, NY,
Project Engineer Ȃ Prepared two separate IDSE
plans for the Townǯs two distribution systemsǤ
Anne Arundel County, Selby Grove Jumpers Hole
Tank, Elvation, MD Project Engineer Prepared
specifications and design drawingsǤ Project includes
the installation of a new ʹǤͲ MG elevated water
storage tankǤ
Town of Vestal, Case Drive Tank Replacement,
Vestal, NY Design Engineer Prepared specification
book and design drawingǤ Project includes the
installation of a new ͳǤͲ MG water storage tank and
valve building and demolition of an existing ͲǤͷ MG
tankǤ
City of Johnstown, Water System Hydraulic Model,
Johnstown, NY, Project Engineer Ȃ Completed
development of a water system hydraulic model
utilizing HʹͲMap by MWH Softǡ IncǤǤ Specific scope for
this project included model developmentǡ water
demand allocationǡ and model calibration based on
field testsǤ The calibrated model will be used to help
the Town evaluate storage tank options for replacing
the existing reservoirǤ Criteria used to evaluate the
impacts including pressure changesǡ flow reversalǡ
estimated fire flowǡ and water quality ȋiǤeǤǡ water ageȌǤ
Mashantucket Pequot Tribal Nation, Water
Treatment Plant Expansion, Mashentucket, CT,
Project Engineer Ȃ Prepared specifications and
design drawings and managed construction phase
reviewǤ Project includes a ʹͲͲǡͲͲͲ gallon clearwellǡ
tube settling basinǡ membrane filtrationǡ pumps and
pipingǤ
Town of Rosendale, Water System Hydraulic
Model, Rosendale, NY, Project Engineer Ȃ
Completed development of a water system hydraulic
model utilizing InfoWater by MWH Softǡ IncǤǡ a GISǦ
based software package accessed via ESRI Arc ViewǤ
Specific scope for this project included model
developmentǡ water demand allocationǡ and model
calibration based on field testsǤ The calibrated model
was then utilized to help the Town evaluate a number
of transmission and distribution system scenariosǤ
Criteria used to evaluate the impacts including
pressure changesǡ flow reversalǡ estimated fire flowǡ
and water quality ȋiǤeǤǡ water ageȌǤ
New York State Office of General Services (OGS),
Stormwater System Alder Creek DOT Facility,
Alder Creek, NY, Project Engineer Ȃ Prepared
specification book and design drawingǤ Project
includes the installation of a new fuel unload station
canopy and modifications to existing stormwater
piping and holding tanksǤ
Town of St. Armand, Water System Improvements,
St. Armand, NY, Design Engineer Designed ͳʹǡͷͲͲ
feet of ͺǦ and Ǧinch distribution mainsǤ Includes
highway crossing and connections to existing utilitiesǤ
Town of Colonie, Division of Latham Water,
Mohawk View Water Treatment Plant Expansion,
Colonie, NY, Design Engineer Developed service
population estimatesǡ evaluated alternatives for
residuals handling and clarificationǡ performed
hydraulic analysesǡ data managementǡ and cost
estimatingǤ In charge of operation of pilot study using
Actiflo process followed by filtrationǤ Design
responsibilities included design of rapid mixǡ
flocculationǡ sedimentationǡ filtrationǡ and residual
management operationsǢ pump and mixer selectionǢ
piping layoutsǢ and chemical feed systems design
ȋbulk storage tanksǡ transfer pumpsǡ day tanks and
metering pumpsȌǤ
Town of Colonie, NY, Division of Latham Water,
Low Lift Pumping Station Upgrade, Colonie, NY,
Design Engineer Upgraded the existing ͳͷ MGD
pumping stationǤ Responsibilities included bid review
and tabulation and shop drawing reviewǤ
Reading Energy Company, Lake Bluff Water
Supply Upgrade, Lake Bluff, NY, Design Engineer Ȃ
Assisted in procurement and installation of a liner and
geotextile underlayment for a wood stave tankǤ
PRIOR TO O’BRIEN & GERE
Air Management
Connecticut Department of Environmental
Protection (CTDEP), Bureau of Air Management Ȃ
Evaluated general and individual New Source Review
permits for approvalǤ Proposedǡ designed and
supervised implementation of an Access ͻ database
for use in expediting the permitting processǤ
Researched and reviewed pollution control issues
related to nitrogen oxides from gas turbines and VOCs
from industrial wastewaterǤ
360° Engineering and Project Delivery Solutions
TECHNICAL EXPERTISE
Water distribution system modeling
Water supply master planning
Water and wastewater systems
Regulatory permitting
PROJECT ASSIGNMENT
Model QA/QC
YEARS OF EXPERIENCE
EDUCATION
MS/1993/Water Resources Engineering;
George Washington University
BS/1987/Civil Engineering;
Pennsylvania State University
PROFESSIONAL REGISTRATION
Professional Engineer: VA, PA
PROFESSIONAL AFFILIATION
American Water Works Association
Water Environment Federation
TECHNICAL SOFTWARE
WaterCAD
WaterGEMS
XPͲSWMM
InfoWater
InfoSWMM
H2OMAP Water
H2OMAP Sewer
ArcView
Thomas EǤ Dummǡ PE
Senior Technical Director
MrǤ Dumm has more than ʹʹ years of professional engineering
experience developing comprehensive infrastructure planning
programs for water and wastewater systemsǤ He has conducted
numerous studies involving master planning and regulatory
permitting for large and small municipal and industrial clientsǤ
Town of Louisa, Waterworks Improvements/ Disinfection
Byproducts Study, Louisa, VA, Technical Director Ȃ Conducted
a study to involving development and calibration of a water
system model ȋInfoWaterȌǡ geocoding of billing dataǡ fire hydrant
flow testingǡ fluoride tracer studiesǡ water quality modelingǡ
unidirectional flushing programǡ and identification of water
system improvements to reduce disinfection byproductsǤ
Jackson Township, Water System Master Plan and Update,
Jackson Township, NJ, Project Manager Ȃ Prepared a water
system master plan ȋʹͲͲͲȌ and an update ȋʹͲͲͻȌ that identified
the need for capital improvementsǤ The study included
projections of water demandsǡ evaluation of existing and
proposed groundwater sourcesǡ assessment of treatment process
requirements for existing and proposed plantsǡ development and
calibration of a hydraulic model of the water distribution system
ȋInfoWaterȌǡ and identification and evaluation of system
improvementsǤ Modeled operational issues with storage tankǡ
water quality complaints with flow reversals and water plant
operationǡ and sizing of water mains for new developmentsǤ
Town of Colonie, Division of Latham Water, Comprehensive
Distribution System Facilities and Water Quality
Management Plan, Colonie, NY, Technical Director Ȃ
Prepared a water system facilities and water quality
management plan for the current ȋͳʹ mgdȌ and future system
ȋͶͲ mgdȌǤ Study included development of water system model
from GIS ȋInfoWaterȌǡ allocation of water demands using GIS
and billing dataǡ field testing ȋfire flow testsȌ and computer
model calibrationǡ computer modeling of the water system to
identify and evaluate CIP improvementsǡ water quality analysesǤ
City of Fairfield, Water System Model Development, OH,
Technical Director – Provided technical direction for the
development of a comprehensive hydraulic model ȋInfoWaterȌǤ
The model was developed using GIS data and calibrated using
fire flow tests and extended period simulation ȋEPSȌ dataǤ
Water demands were allocated using billing meter dataǤ
THOMAS E. DUMM, PE
360° Engineering and Project Delivery Solutions
City of Lebanon, Water System Hydraulic Model
and IDSE Plan, City of Lebanon, KY, Technical
Director Ȃ Developed and calibrated a water system
hydraulic model ȋInfoWaterȌǤ Project included
development of GIS for piping and facilitiesǡ model
developmentǡ water demand allocationǡ diurnal
demand curve developmentǡ and model calibration
based on field testsǤ The calibrated model was used to
evaluate a number of system improvements including
sizing and locating additional storageǤ The model as
also used to prepare an Initial Distribution System
Evaluation ȋIDSEȌ Plan for the Cityǯs water systemǤ
The InfoWater model was used to compute water age
and select monitoring sites for the Stage ʹ DBP RuleǤ
Monroe Township MUA, Water Reuse Study,
Monroe Township, NJ, Technical Director –
Developed an irrigation system master plan
including technicalǡ financialǡ and environmental
aspects such as investigating nonpotable water
supply alternatives ȋstormwaterǡ nonpotable well
supplyǡ stream diversion and storageǡ water reuse
via satellite treatmentǡ etcǤȌǡ identified Dzoffsetdz costsǡ
defined agreementsǡ maintained instream flowsǡ
and satisfied NJDEPǯs request to use the lowest
quality water for nonpotable usesǤ
Virginia American Water, IDSE Plans,
Alexandria, VA, Technical Director Ȃ OǯBrien Ƭ
Gere prepared Initial Distribution System
Evaluation ȋIDSEȌ Plans for four of Virginia
Americanǯs water system ȋAlexandriaǡ Prince
Williamǡ Hopewell and FtǤ LeeȌǤ Three of the models
ȋWaterCADȌ were updated and calibrated for use by
American Water for selection of monitoring sites for
the Stage ʹ DBP RuleǤ A model was constructed for
FtǤ Lee ȋWaterCADȌ using AutoCAD mapping and
calibration was conducted using field dataǤ Field
services were performed to collect data for model
calibrationǤ Water age analyses were conducted to
assist with selection of monitoring sitesǤ
City of Annapolis, Water and Sewer System Study,
Annapolis, MD, Technical Director Ǧ Prepared a
water and sewer system study to provide a prioritized
list of capital improvement projectsǤ Study included
projections of water demands and wastewater flowsǡ
assessment of existing facilitiesǡ review of roughly
ͷͲͲͲ asǦbuilt drawings to populate water and sewer
modelsǡ development and calibration of computer
models for water ȋWaterGEMSȌ and sewer
ȋSewerGEMSȌ systems to identify and evaluate CIP
improvementsǡ scheduling of recommended
improvementsǡ cost estimating and financial impact
assessment of proposed projectsǤ
Additional projectsǣ
Water and Sewer Modeling and Master Planningǡ
American States Utilities Services ȋAndrews AFBȌ
Water System Hydraulic Modelǡ Town of
Bethlehemǡ NY
Water and Wastewater Master Planǡ Stafford
Countyǡ VA
Water and Wastewater Facilities Plan and Updateǡ
Salisburyǡ MD
Water Strategic Planǡ Anne Arundel Countyǡ MD
Water System Master Planǡ Prince William Countyǡ
VA
Water and Wastewater Master Planǡ Carroll
Countyǡ MD
Water Distribution System Analysisǡ Allentownǡ PA
Water System Facility Planǡ Washington Suburban
Sanitary Commissionǡ Laurelǡ MD
Water Pumping Station Evaluationǡ Washington
Suburban Sanitary Commissionǡ Laurelǡ MD
Water Pumping Station and Storage Facility
Evaluationǡ Washington Suburban Sanitary
Commissionǡ Laurelǡ MD
Water Distribution System Analysisǡ Norfolkǡ VA
Water System Master Planǡ Rivanna Water Ƭ Sewer
Authorityǡ Charlottesvilleǡ VA
Water and Wastewater Master Planǡ Boy Scouts of
Americaǡ Goshenǡ VA
Water and Wastewater Bond Feasibility Studyǡ DC
Water Ƭ Sewer Authorityǡ Washingtonǡ DC
Water Reservoir Optimization Studyǡ City of
Rochesterǡ NY
PROPOSAL COST ŇSECTION 4
360° Engineering and Project Delivery Solutions
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 4
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Cost.doc
SECTION 4 –NOTͲTOͲEXCEED COST FOR TASKS 1Ͳ11
In accordance with the Village of CrotonǦonǦHudsonǯs RFPǡ this section concludes with a notǦtoǦexceed cost for
the completion of Scope of Work tasks ͳ through ͳͳ for this projectǤ The cost is broken down by individual tasksǡ
associated effort and includes man hoursǡ hourly rates and all ancillary costsǤ
05-Jul-11
Lowell
Kachalsky, PE
Rick Gell, PE
Thomas
Dumm, PE
Brian Edwards,
PE
Title Project Officer
Project
Manager
QA/QC
Lead Modeler
Hourly Billing Rate
$227
$180
$183
$101
Task 1 - Data Collection
$1,212
Task 2 - Kick-off Meeting/Work Session 1
$908
Task 3 - Software Selection
$202
Task 4 - Model Development
$2,790
Task 5 -Water Demand Allocation
$991
Task 6- Work Session 2
$100
$908
Task 7- Model Calibration
$2,165
Task 8- Work Session 3
$100
$908
Task 9- System Analyses
$4,368
Task 10- Deliverables
$500
$3,694
Task 11- Project Management
$200
$10,132
TOTAL HOURS
TOTAL COST
$3,632
$6,300
$2,196
$15,150
$1,000
$28,278
See note 1.
-$3,632
$24,646
10% fee waived
on labor
-$2,150
Final Not to
Exceed Cost
$22,496
There will be no mark-up on direct out of pocket costs.
Note 1: Mr. Kachalsky will not bill for his time charged to this project.
Fee Estimate
Development of a Digital Computer Model for Village's Water Supply System
Croton-on-Hudson, New York
Total Hours
Direct Expenses
Fee
DIGITAL COMPUTER MODEL OF VILLAGE WATER SYSTEM ŇSECTION 4
The Village of CrotonͲonͲHudson
BAM11/MUN/CrotonͲonͲHudson_DigitalComputerModel/Cost.doc
Hourly Billing Rates
Lowell Kachalsky
$227
Rick Gell
$180
Tom Dumm
$183
Brian Edwards
$101
ATTACHMENTS ŇSECTION 5
360° Engineering and Project Delivery Solutions
Zurich American Insurance Company 16535-020
Steadfast Insurance Company 26387-003
Zurich American Insurance Company 16535-005
Zurich American Insurance Company 16535-006
877-945-7378
888-467-2378
certificates@willis.com
Willis of Pennsylvania, Inc.
26 Century Blvd.
P. O. Box 305191
Nashville, TN 37230-5191
O’Brien & Gere, Inc. of North America
and O’Brien & Gere Operations, LLC
333 W. Washington Street
P.O. Box 4873
Syracuse, NY 13221-4873
X
X
X
1,000,000
300,000
10,000
1,000,000
3,000,000
3,000,000
A
GLO386738703
1/1/2011
1/1/2012
X
X
X
1,000,000
A
BAP386738702
1/1/2011
1/1/2012
X
X
5,000,000
5,000,000
B
AUC594587402
1/1/2011
1/1/2012
X
1,000,000
1,000,000
1,000,000
C
WC386738903
1/1/2011
1/1/2012
$5,000,000 Each Claim
$5,000,000 Aggregate
Professional &
Pollution Liability
D
PEC968347304
1/1/2011
1/1/2012
Automobile Liability, General Liability and Employers Liability are the underlying policies to the
Excess/Umbrella Liability policy
O’Brien & Gere Engineers, Inc.
01/05/2011
.
.
Sample Certificate
Coll:3226955 Tpl:1208147 Cert:15387717
DATE (MM/DD/YYYY)
PRODUCER
INSURED
INSR
ADD’L SUBR
POLICY EFF
POLICY EXP
TYPE OF INSURANCE
POLICY NUMBER
LIMITS
LTR
INSRD WVD
(MM/DD/YYYY)
(MM/DD/YYYY)
GENERAL LIABILITY
AUTOMOBILE LIABILITY
UMBRELLA LIAB
EXCESS LIAB
WORKERS COMPENSATION
AND EMPLOYERS’ LIABILITY
Y / N
N / A
(Mandatory in NH)
DESCRIPTION OF OPERATIONS / LOCATIONS / VEHICLES (Attach Acord 101, Additonal Remarks Schedule, if more space is required)
AUTHORIZED REPRESENTATIVE
CONTACT
NAME:
PHONE
FAX
(A/C, NO, EXT):
(A/C, NO):
E−MAIL
ADDRESS:
INSURER(S)AFFORDING COVERAGE
NAIC #
INSURER A:
INSURER B:
INSURER C:
INSURER D:
INSURER E:
INSURER F:
EACH OCCURRENCE
DAMAGE TO RENTED
$
COMMERCIAL GENERAL LIABILITY
$
PREMISES (Ea occurence)
CLAIMS−MADE
OCCUR
MED EXP (Any one person)
$
PERSONAL & ADV INJURY
$
GENERAL AGGREGATE
$
GEN’L AGGREGATE LIMIT APPLIES PER:
PRODUCTS - COMP/OP AGG
$
PRO-
POLICY
LOC
JECT
$
COMBINED SINGLE LIMIT
$
(Ea accident)
ANY AUTO
ALL OWNED
AUTOS
BODILY INJURY(Per person)
$
SCHEDULED
AUTOS
HIRED AUTOS
BODILY INJURY(Per accident)
$
NON-OWNED
AUTOS
PROPERTY DAMAGE
$
(Per accident)
$
EACH OCCURRENCE
OCCUR
CLAIMS−MADE
AGGREGATE
$
$
DED
$
RETENTION $
WC STATU-
OTH-
TORY LIMITS
ER
E.L. EACH ACCIDENT
$
ANY PROPRIETOR/PARTNER/EXECUTIVE
OFFICER/MEMBER EXCLUDED?
If yes, describe under
DESCRIPTION OF OPERATIONS below
E.L. DISEASE - EA EMPLOYEE
$
E.L. DISEASE - POLICY LIMIT
$
THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD
INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS
CERTIFICATE MAY BE ISSUED OR MAY PERTAIN. THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS,
EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS.
SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE
THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN
ACCORDANCE WITH THE POLICY PROVISIONS.
THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS
CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES
BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED
REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER.
IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies)must be endorsed. If SUBROGATION IS WAIVED, subject to
the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer rights to the
certificate holder in lieu of such endorsement(s).
COVERAGES
CERTIFICATE NUMBER:
REVISION NUMBER:
CERTIFICATE HOLDER
CANCELLATION
ACORD 25 (2010/05)
© 1988−2010 ACORD CORPORATION. All rights reserved.
The ACORD name and logo are registered marks of ACORD
CERTIFICATE OF LIABILITY INSURANCE
6/27/11
Machine-extracted for search and reference — the original PDF is the authoritative version.