Contract 2019-65 el TETRA TECH
August 5,2019
Mr. Stoney Brunson
Environmental Services Director
City of Clermont
400 12th Street
Clermont, FL 34711
Subject: City of Clermont
Professional Engineering Services Proposal for the
Water,Wastewater and Reclaimed Water Master Plan Update
Tt# 200BP Gen/Clermont
Dear Mr. Brunson:
Thank you for the opportunity to submit our professional services proposal to perform an update of the
Water, Wastewater and Reclaimed Water Master Plans. Tetra Tech proposes the following scope of
services to be performed in accordance with the City/Tetra Tech Consulting Contract and Agreement for
Professional Engineering Services for Public Works Projects dated December 9, 2014. Attachment A
provides the scope of services for this assignment.
We appreciate this opportunity to be of service for the City of Clermont and look forward to working
with you on this important project.
Very truly yours, Approval:
Tetra Tech City of Clermont
dDOX, P.E. By: -+li�
Vice President
Date: 9- /U - )0) j
Attachments %
ATW/ab/BPClermont/Master Plan Updates/Brunson_080519
C: James Kinzler,CPM, EA,City of Clermont
Kevin Burgess, City of Clermont
Andrew T.Woodcock, PE, MBA,Tetra Tech
Tetra Tech
201 E.Pine Street.Suite 1000,Orlando,FL 32801
Tel 407.839.3955 Fax 407.839.3790 www.tetratech.com
ATTACHMENT A
SCOPE OF SERVICES
CITY OF CLERMONT, FLORIDA
MASTER PLAN UPDATES FOR WATER,WASTEWATER AND RECLAIMED WATER
PHASE 1—PROJECTIONS/EXISTING SYSTEMS
The Projections/Existing System Phase will describe and evaluate the existing systems and identify the
quantity of service projected at build-out and the five (5) and ten (10) year planning horizons. Currently
identified concerns or supplemental considerations include:
• Increased development intensity along the US 27 corridor.
• Increased development intensity in the Downtown Area.
• Water system improvements to optimize the City's existing water production facilities and
associated groundwater withdrawal for Consumptive Use Permitting.
• Possible provision of reclaimed water to the City of Minneola as well as expansion of service in
the northern and eastern directions.
• Possible provision of reclaimed water to the Utilities Inc. Service Area.
• Possible receipt of supplemental reclaimed water (3.0 MGD) from the City of Orlando's
Conserv II System.
1.1. Data Collection
Tetra Tech will collect, coordinate and organize data and various documents to develop the
background information needed for the planning effort. To the extent Tetra Tech has already
received this data in conjunction with other projects,additional copies will not be necessary. Data
sources are expected to include:
• Monthly operating reports,discharge monitoring reports and other operational data.
• Existing GIS shape files and data base of the systems.
• Water and lift station pump curves.
• Selected SCADA data as available.
• Record drawings for recent projects not covered in the GIS information.
• Design reports and permitting documents pertaining to treatment facilities.
• Aerial photographs and tax maps.
• USDA SCS Soils Maps.
• FEMA Flood Maps.
• Existing hydraulic models and master plans.
• Comprehensive plans for Clermont and Lake County.
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• Existing and future land use maps for Clermont and Lake County.
• Current permits associated with the systems.
• Potable water, wastewater and reclaimed water customer data.
• Reclaimed water demand data and projections for the City of Minneola along with GIS
files or system mapping.
• Reclaimed water demand data and projections for the Utilities Inc. Service Area along
with GIS files or system mapping.
1.2. Water
1.2.1. Potable Water Projections. Tetra Tech will update the previously generated build-out
potable water demand projections. Additional projections will be determined for the 5-
year and 10-year planning horizons. The projections will reflect increased development
intensities as well as the limitations in the City's Water Use Permit and offsets in water
usage through reclaimed water.
1.2.2. Capacity Analysis. Tetra Tech will review the existing potable water treatment and supply
facilities and evaluate the ability of the system to meet the projected demands.
1.2.3. Regulatory Review. Tetra Tech will summarize existing and proposed regulatory
requirements that will affect the water system. The regulations will be compared to the
current water quality and any deficiencies or concerns will be identified and addressed in
the capital program.
1.3. Wastewater
1.3.1. Wastewater Projections. Tetra Tech will develop build-out wastewater flow projections
for the City Service Area. The projections will reflect increased development intensities
in certain areas currently served as well as other developed and undeveloped areas where
central wastewater service is advisable. In addition, projected flow from anticipated
interconnects with known outside wastewater utilities will be included. Additional
projections will be determined for the 5-year and 10-year planning horizons for
development of the CIP.
1.3.2. Capacity Analysis. Tetra Tech will compare the capacity of the existing wastewater
treatment facilities, with planned expansions, to meet the projected demands. The
capacity analysis for the lift stations and wastewater transmission system will be
evaluated as part of the hydraulic modeling.
1.3.3. Regulatory Analysis. Tetra Tech will summarize existing and proposed regulatory
requirements that will affect the wastewater treatment plant, biosolids disposal and
effluent disposal. Particular attention will be directed at the nutrient loading criteria
currently being developed for the Upper Ocklawaha River Basin. The regulations will be
compared to the wastewater system parameters and any deficiencies or concerns will be
noted.
1.4. Reclaimed Water
1.4.1. Reclaimed Water Projections. Tetra Tech will develop build-out reclaimed water demand
projections for the City Service Area. The projections will consider areas that currently
receive reclaimed water service in addition to other developed and undeveloped areas
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where service appears feasible. Additional projections will be determined for the 5-year
and 10-year planning horizons for development of the CIP.
1.4.2. Reclaimed Water Opportunities. In a collaborative effort with the City, Tetra Tech will
identify future large-scale potential end users of the reclaimed water and estimate future
residential reclaimed water demand. The nature of the existing reclaimed water service
area will be analyzed to determine opportunities where reclaimed water service can be
effectively extended along with "infill service" for areas that include reclaimed water
distribution piping. Other potential users of reclaimed water involve bulk sales and
transfer to nearby utilities, such as the City of Mineola and Utilities Inc. The potential for
alternative reclaimed water sources, such as Orlando's Conserv II system, will also be
evaluated to maximize the supply of reclaimed water to meet the City's projections.
1.5. Draft Submittal and Review
Tetra Tech will prepare three draft Technical Memoranda (one for each system)that presents the
data analysis, maps, and projections and submit two (2) copies of the documents to the City for
review and comment. The memoranda will take the form of sections that will ultimately be
included in the Master Plans. This review will be used by the City to verify the completeness of
the data and maps and to review the projections prior to any planning work.
1.6. Review Meeting
Tetra Tech will attend a review meeting addressing the draft submittal and will record and
distribute meeting minutes of said meeting.
1.7. Draft Technical Memorandum Revisions
Tetra Tech will incorporate the City's review comments into the maps and projections.
PHASE 2—HYDRAULIC MODELING
2.1 Water System
2.1.1 Existing Model
Tetra Tech will review the City's existing GIS infrastructure data and update the existing
steady state hydraulic model. The model will be updated by Tetra Tech with the current
average day water demands (based on billing data provided by City).
2.1.2 Model Calibration
Tetra Tech will work with the City to verify the potable water model input parameters
with up to eight (8) hydrant flow tests. Tetra Tech will recommend the locations and
dates for performing the hydrant tests. Tetra Tech will provide a staff member for one
(1) day to oversee the field hydrant tests. The City will provide field staff to help perform
hydrant testing and provide information from the water treatment facilities prior to and
during the hydrant tests, including plant flows and pressures. The City will provide the
data loggers to be installed throughout the distribution system as well as pressure gauges
to be attached to the fire hydrants to calculate flow for each tested hydrant.
2.1.3 Model Scenarios
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After the model is calibrated, a hydraulic analysis will be performed to determine the
system's ability to meet projected demands in the 5-year, 10-year and build-out scenario.
Tetra Tech will discuss the predicted facility operation with City staff to determine the
operating strategy of the facilities for the model simulations.
For each of the applicable scenarios, Tetra Tech will provide two (2) analyses consisting
of steady state simulations for maximum day demand plus fire flow and peak hour
demand. Tetra Tech will also create one extended period simulation for average day
demand using diurnal curve data from the City's SCADA system if available or AWWA
standards to analyze water age in the system.
2.2 Wastewater System
2.2.1 Existing Model
Tetra Tech will review the City's existing GIS infrastructure data and update the current
steady state hydraulic model. The model's flows will be initially determined by lift station
pump capacities and run times in conjunction with GIS lot counts. Gravity sewers will be
evaluated via conventional computation techniques with Microsoft Excel. Minor lift
stations and lift stations not part of a manifolded system will not be included in the
hydraulic model. Wet weather/dry weather and inflow/infiltration analyses are not
included in the modeling.
2.2.2 Model Calibration
Pressure monitoring will be conducted at three locations within five different manifolded
force main networks and used to calibrate the model. The City will provide the data
loggers and pressure gauges to be installed throughout the distribution system. Flows, C
factors, and pump performance will be adjusted as needed to provide calibration within
generally accepted guidelines. The City will provide field staff to assist in the data
collection.
2.2.3 Model Scenarios
A hydraulic analysis will be performed to determine the system's ability to meet projected
demands in the 5-year, 10-year and build-out scenario. For each of the scenarios, Tetra
Tech will provide an analysis with the firm capacities of all lift stations simultaneously to
approximate a worst case condition. Additional adjustments may be made based on input
from City staff regarding system operations. The final model will be structured to allow
the City to ascertain manifolded force main pressures at any location and to quantify
existing lift station delivery impacts resulting from the addition of new pump stations.
2.3 Reclaimed Water System
2.3.1 Existing Model
Tetra Tech will update the existing reclaimed water hydraulic model using updated GIS
data from the City. Tetra Tech will reassign demands if an update is warranted based on
a review of existing reclaimed demand patterns.
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2.3.2 Model Verification
Tetra Tech will work with the City to verify the reclaimed water model.Verification efforts
will include obtaining input conditions (flow and pressure) in the City's system along with
data at the extremities of the system. Tetra Tech will provide a staff member for one(1)
day to oversee data collection. Data loggers, provided by the City, will be installed at
various locations throughout the reclaimed water system. The City will provide field staff
to assist in the data collection.
2.3.3 Model Scenarios
A hydraulic analysis will be performed to determine the system's ability to meet projected
demands in the 5-year, 10-year and build-out scenario. Pressurized and non-pressurized
delivery of reclaimed water will be evaluated for major customers and potential bulk
users such as the City of Minneola and Utilities Inc. Tetra Tech will update the reclaimed
water supply for each scenario to account for potential inputs from regional supply
sources. Further, remote storage and repumping facilities will be considered in the
northern region of the City's Service Area. All analyses will evaluate the system based on
a peak hour demand case with appropriate watering schedule restrictions.
2.4 Draft Submittal and Review
Tetra Tech will prepare three draft Technical Memoranda (one for each system)that presents the
data analysis, maps, and results of the current demand and flow conditions and submit two (2)
copies of the documents to the City for review and comment. The memoranda will take the form
of sections that will ultimately be included in the Master Plans.
2.5 Review Meeting
Tetra Tech will attend a review meeting addressing the draft submittal and will record and
distribute meeting minutes of said meeting.
2.6 Draft Technical Memorandum Revisions
Tetra Tech will incorporate the City's review comments into the draft Technical Memorandum.
PHASE 3—CAPITAL PROGRAM
The Capital Program will identify the projects required to meet the goals of the Master Plans. Tasks
included in the Capital Program Phase include:
3.1 Identify Facility Requirements
Facility requirements will include a detailed list of storage,treatment, pumping,transmission,and
distribution facilities required to effectively convey service to end users previously identified as
well as any requirements for interconnects with neighboring utilities. The facility requirements
will be based on:
• Unit operation capacity assessments for potable water and wastewater treatment
facilities.
• Hydraulic modelling results.
• Consideration of planned roadway improvements and their potential effect of pipeline
assets.
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• The age and condition of existing pipelines as determined from discussions with the City
and from review of GIS data.
The requirements will be developed for the 5-year, 10-year, and build-out planning horizons and
will include a description of each project and opinion of probable cost.A color-coded map will be
prepared to clearly identify the various improvement and the suggested phasing.
3.2 Prioritization of Improvements
Tetra Tech will prioritize the identified improvements for both new and existing facilities and
provide dates for improvements as necessary to meet system demand. The prioritization will
develop a CIP for the 5-year and 10-year planning horizons. The prioritization will also include a
ranking of projects based on identifying projects that will provide the greatest increase for the
least amount of capital expenditure while also considering non-cost factors. The CIP for the 5-
year and 10-year planning horizons will also include a set of events that will trigger the initiation
of the projects.
3.3 Draft Submittal and Review
Tetra Tech will prepare three (3) draft Technical Memoranda summarizing the Capital Program
and submit two(2)copies of the document to the City for review and comment. The memoranda
will take the form of the sections that will ultimately be included in the Master Plans.
3.4 Review Meeting
Tetra Tech will attend a review meeting addressing the draft submittal and will record and
distribute meeting minutes of said meeting.
3.5 Draft Technical Memorandum Revisions
Tetra Tech will incorporate the City's review comments into the draft Technical Memoranda.
PHASE 4—REPORT PREPARATION
4.1 Report Preparation
Tetra Tech will submit two (2)copies of 3 draft reports(one for each system),combining the final
Technical Memoranda for each Phase for review by the City and will subsequently meet with the
Staff to discuss the documents. The report will be revised pursuant to the City's comments and
two (2) copies of each of the final reports will be submitted to the City along with electronic
versions of the various models and documents.
SCHEDULE
A tentative schedule for major milestones in the project is presented below. The analysis and Technical
Memoranda of the water system will be accelerated to inform the City of the impact of the St. John River
Water Management District Consumptive Use Permit by the end of 2019.
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Water Master Plan Technical Memorandum Schedule
Task Days After
Notice to Proceed
1. Technical Memorandum 1 (Water) 30
2. Technical Memorandum 2(Water) 90
3. ' Technical Memorandum 3 (Water) 120
Wastewater and Reclaimed Water Technical Memorandum and Master Plan Schedule
Task Days After
Notice to Proceed
1. Technical Memorandum 1 (Wastewater and Reclaimed) 60
2. Technical Memorandum 2 (Wastewater and Reclaimed) 120
3. Technical Memorandum 3 (Wastewater and Reclaimed) 180
4. Draft Master Plans (all systems) 200
5. Final Master Plans (all systems) 220
COMPENSATION
The total lump sum fee for the services described above is $163,887, and is summarized in the Table
below. Tetra Tech will invoice the City monthly.
Phase Compensation
1. Projections/Existing System $ 29,136
2. Hydraulic Modeling 74,340
3. Capital Program 38,817
4. Report Preparation 19,394
Other Direct Costs 2,200
TOTAL LUMP SUM $ 163,887
EXCLUSIONS
The following tasks are specifically excluded from this Scope of Services:
1. Preparation of grant or loan applications.
2. Preparation of ordinances or resolutions and attendance at meetings or hearings other than those
specifically described herein.
3. Preparation of any groundwater models.
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4. Evaluation of alternative water sources.
5. Expert witness testimony.
6. Land use planning and annexation analysis.
7. Budget preparation assistance.
8. Extended period simulations of the hydraulic models other than those specifically described
herein.
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