HomeMy WebLinkAbout13 Approval of Inspection of Over Seven (7) Miles of Critical Segments of the City's Force Mains
City of Ocoee ▪ 1 N. Bluford Avenue ▪ Ocoee, Florida 34761
Phone: (407) 905-3100 ▪ www.ocoee.org
STAFF REPORT
Meeting Date: April 7, 2026
Item #: 13
Contact Name: Trent Hopper Department Director: Jen Bolling
Contact Number: Ext. 4306 City Manager: Craig Shadrix
Subject: Approval of Inspection of Over Seven (7) Miles of Critical Segments of the City’s
Force Mains. (Utilities Director Bolling)
Background Summary:
As part of the wastewater collection system preventive maintenance program, the FY 26 approved budget
incudes the inspection of 7 miles of critical segments of the City’s force mains. The inspection will utilize a
specialized technology known as a “smart ball”. The smart ball device is inserted into the force main and
propelled through designated force main segments by lift station pumps. As it travels through the pipeline, it
collects data including pressure variations that may indicate leaks, locations of air pockets (trapped gases),
and mapping of the force main alignment. This data is used to assess the pipe condition in an effort to prevent
pipe failures.
Air pockets and leaks are of particular concern. Air pockets and leaks can create corrosive environments and
strain on pipe, accelerating pipe deterioration and negatively impacting lift station pump performance. Early
detection allows staff to take corrective action, extending the lifespan of the infrastructure and reducing the
likelihood of costly emergency repairs. Staff requested quotes from Xylem, RJN Group, and American Pipeline
Solutions, Inc. (APS). Staff received quotes of $182,212.50, $199,600, and $168,000 respectively, and APS
provided the lowest quote.
Issue:
Should the Honorable Mayor and City Commission approve to contract with APS for the force main pipe
condition assessment of over 7 miles of critical force main segments in the amount of $168,000?
Recommendations:
Staff recommends that the Honorable Mayor and City Commission authorize the City Manager to cause the
approval of FM inspections by contracting with APS at a cost of $168,000 and authorize the City Manager to
approve changes to this contract up to the limit of his purchasing authority for each change order.
Attachments:
1. Xylem Quote
2. RJN Group Quote
3. APS Quote
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City of Ocoee ▪ 1 N. Bluford Avenue ▪ Ocoee, Florida 34761
Phone: (407) 905-3100 ▪ www.ocoee.org
Financial Impacts:
This is adequately funded using the approved City of Ocoee Budget for Fiscal Year 2025-2026 (RR016-26
Wastewater Field – Smart Ball under GL 407-535-10-4608).
Type of Item: Consent
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Proposal for
IN-SERVICE WASTEWATER PIPELINE CONDITION ASSESSMENT
LS 70, LS 63 and LS 7 Force Mains
SmartBall®
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February 13, 2026
Mr. Richard Dilyerd
Utilities Operator
City of Ocoee
1 N. Bluford Avenue
Ocoee, FL 34761
RE: LS 70, LS 63 and LS 7 Force Mains Condition Assessment
Dear Mr. Dilyerd,
Pure Technologies U.S. Inc., a Xylem brand, is pleased to offer our services to the City of Ocoee for
inline leak and gas pocket detection of the City’s major east and west force mains. The project
scope includes inspection of the following:
• 7,520 linear feet (LF) of 8-, 16-, 20-, 20- and 24-in force main from LS 70 to LS 63
• 11,521 LF of 20- and 24-in force main from LS 63 to the wastewater treatment facility
(WWTF)
• 21,396 LF of 16- and 20-in force main from LS 7 to the WWTF
We propose using our SmartBall® free-swimming inspection platform to complete this project.
SmartBall inspects pipelines while they are in service, detects acoustic activity associated with leaks
and trapped air pockets, and uses motion data to map the pipelines' true alignment.
As a recognized industry leader in the inspection, assessment, and management of pressurized
water and wastewater pipelines, Pure Technologies continually strives to set the industry standard
with the most trusted, technologically advanced tools operated by our highly experienced team.
We look forward to addressing any questions you may have and look forward to working with you
on this important project.
Jennifer Leone, PE. Will Craven, P.E.
Business Development Manager Business Development Manager – East
Pure Technologies U.S. Inc. Pure Technologies U.S. Inc.
Jennifer.Leone@xylem.com william.craven@xylem.com
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In-Service Wastewater Pipeline Condition Assessment and (Optional) Mapping
Free-swimming inline inspection is the best solution for detecting gas pockets in wastewater
pipelines as it brings the acoustic sensor directly to the gas pocket while the pipeline remains
operating under normal conditions, providing greater sensitivity and accuracy, and covering long
distances in a single deployment. The SmartBall inspection platform is deployed in an active line,
avoiding the inconveniences associated with shutting off flow for the duration of the inspection.
Using the SmartBall inspection platform, Pure Technologies has inspected over 1,100 miles of
wastewater pressure pipes.
Gas Pocket Detection and Mapping for Condition Assessment. While there are several
mechanisms for the failure of wastewater pressure pipe, research conducted as part of the Water
Research Foundation (WRF): 2010 Guidelines for the Inspection of Wastewater Force Mains, shows
the most common failure mode is internal corrosion due to hydrogen sulfide (H2S). This failure mode
is caused by a gas pocket containing H2S forming in the pipeline, which corrodes the pipe wall and
eventually leads to a failure. Failure modes identified in the WRF study are shown in Figure 1.
Hydrogen sulfide gas, when released from the system or the pipe’s appurtenances can also create a
toxic environment for humans, ranging from a mild irritant to concentrations that are fatal.
Figure 1. Failure Modes Identified in WRF’s 2010 Guidelines for the Inspection of Wastewater Force Mains
Additionally, gas pockets can impact the operation of pump stations by reducing the capacity of
the pipeline and increase the risk of collapse due to vacuum at gas pocket locations should a
transient pressure wave traverse the pipeline.
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Pure Technologies has performed an analysis of force mains inspected using acoustic based
technologies in order to better characterize the frequency and location of gas pockets. Based on
the analysis, 72% of gas pockets were not located at known high points or gas release valves.
Inspections utilizing the SmartBall inspection platform allows utilities to identify and address leaks
and gas pockets before they lead to catastrophic failures.
Condition Assessment Engineering and Transient Pressure Monitoring. Gain an in-depth
understanding of force main condition by combining SmartBall data with additional assessment
techniques, such as transient pressure monitoring (TPM) and by conducting strategic test pit
validations at gas pocket locations to directly measure wall thickness. Evaluate the significance of
wall loss through a structural evaluation consisting of a design check and a Finite Element Analysis
(FEA) structural performance curve. This evaluation can then be used to statistically calculate the
probability of failure under the wall loss conditions.
Pipeline Mapping (Optional). Knowing the location of underground pipelines with certainty is a
key component of pipeline management and comprehensive condition assessment programs.
Confirming the location of buried assets helps pipeline managers evaluate the risk of pipeline
failure, understand the alignment relative to other critical assets and nearby utilities, efficiently plan
to minimize the cost of maintenance work, reduce the likelihood of third-party damage, and
conduct more accurate hydraulic modeling.
SmartBall
The SmartBall inspection platform is a free-swimming,
non-destructive inline inspection technology that detects
acoustic activity associated with leaks and pockets of
trapped gas in pressurized pipelines. Optionally,
SmartBall can map the pipeline using the motion data of
the tool along with field-collected global positioning
system (GPS) data as shown in Figure 2.
The SmartBall tool is typically inserted into an active line
through a check valve in a pump station. Once deployed,
the tool is propelled by the hydraulic flow and can
navigate inline valves, 90-degree bends, tees, diameter
changes, profile changes, and vertical risers. It is typically
extracted from the pipeline by installing a metal bar
screen at a gravity transition manhole or other
depressurized feature as shown in Figure 3.
The SmartBall tool is continuously tracked during an
inspection using proprietary tracking devices synchronized with the tool and tracking sensors
installed along the pipeline prior to deployment.
The collected data is evaluated by experienced data analysts using proprietary software and
methods to report the location of leaks and gas pockets, as well as provide a qualitative estimate of
leak magnitudes to help prioritize further investigation and repair activities. When mapping of the
pipeline is included in the project scope, advanced location algorithms are used to evaluate
Figure 2: SmartBall Free-swimming
Inspection Platform for Pipeline Leak, Gas
Pocket Detection and Mapping
Since 2005, utilities around the
world have relied on the
SmartBall platform to inspect
more than 8,895 miles of
pipelines including 1,100 miles
of wastewater pipelines.
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motion data recorded by the SmartBall tool in combination with field-collected GPS data to
determine the alignment of the pipeline.
Figure 3. SmartBall Platform Overview
Condition Assessment Engineering
Transient Pressure Monitoring
A hydraulic evaluation is proposed in order to understand the operational and surge pressures
within the pipeline. When pipe wall degradation is combined with surge pressures, the likelihood
of pipe failure can be significantly increased. Evaluation of the pump station operation, such as
pump startup mode, typical and peak flows, operating and surge pressures, and surge protection,
can provide important information on the stresses imparted on the pipeline.
Hydraulic pressure transients (also known as surges or water hammers) occur in pipelines when the
pressure conditions in the system change due to variances in pressure or flow (e.g., pump on/off
cycles or the rapid closure of a valve). The magnitude of a transient is related to several factors that
include, but are not limited to, the flow rate within the pipeline, the time over which the change in
steady-state condition occurs, and a pipe’s hoop stiffness. During a transient event, the kinetic
energy within the pipeline (velocity of the water) is converted into potential energy (pressure in the
pipe) and strain energy (deformation/strain in the pipe wall) by the propagation of transient
pressure waves. A transient pressure wave can travel through the pipeline at speeds greater than
3,000 feet per second and can cause damaging pressure events and vacuum conditions, which can
lead to permanent damage within the pipe wall and failure within the pipe system.
Conventional pressure monitors collect data in intervals of seconds or minutes while a transient
may occur in a fraction of a second and may be missed by traditional equipment. A transient
pressure monitor (TPM) continuously samples pressure at a high rate and records data every few
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minutes under normal operating conditions; however, when a transient pressure event is detected
in the pipeline, the sampling rate increases to once every 50 milliseconds (20 readings per
second). Transient pressure monitors are also capable of recording negative pressures in a
pipeline as low as -14.7 psi, or perfect vacuum, as well as positive pressures in the pipelines as high
as 300 psi.
Field Verifications
Test pits along with field verifications/wall thickness measurements performed in conjunction with a
SmartBall leak and gas pocket inspection can provide input for structural modeling and remaining
useful life (RUL) analysis, where repairs are being made. Pure Technologies can coordinate test pit
location and site preparation prior to mobilizing to the project sites.
External testing will be performed to determine wall thickness and areas of internal and external
corrosion using one or more testing technique—ultrasonic, pulsed eddy current, external magnetic
flux leakage, magnetic particle or dye penetrant testing.
Design Check
American Water Works Association (AWWA) C150 standard dictates the design requirements for
Ductile-Iron Pipe (DIP). By using the equations presented in the standard, the minimum required
wall thickness for current loading conditions is calculated over the length of the pipeline. With only
the inputs of overburden, internal pressure, and pipe material, we can understand if the pipe that
was installed meets or exceeds the standards (was the pipe over or under designed). This is a first
and conservative step to evaluating the significance of any defects.
The withdrawn AWWA C101 standard dictated the design requirements for Cast Iron Pipe (CIP). By
using the equations presented in the standards, the minimum required wall thickness for current
loading conditions is calculated over the length of the pipeline. With only the inputs of overburden,
internal pressure, and pipe material, we can understand if the pipe that was installed meets or
exceeds the standards (was the pipe over or under designed). This is a first and conservative step
to evaluating the significance of any defects.
Using the equations and requirements presented in the standard and design manual, Pure
Technologies will calculate the minimum area of pipe wall thickness required to withstand both
internal working pressure, instantaneous surge pressure, and external loading along the length of
the pipeline. This analysis assumes uniform wall thickness as opposed to evaluating the effects of
individual defects.
Probability of Failure
Using a probability of failure simulation, pipeline management strategies can be developed that
address the short-term management and long-term renewal strategies for the force mains. It
should be noted that a statistical evaluation and RUL calculations are contingent upon performing
test pits to obtain wall thickness measurements. The preferred means to accomplish the RUL
calculations is via test pits that are chosen at statistically significant locations. Additional ultrasonic
thickness measurements can be taken at existing air release valves locations or where leaks or
pockets of trapped gas are being externally repaired.
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Project Milestones and Deliverables
Additional details regarding insertion, extraction and tracking of the inspection tools are provided
in Appendix A, Inspection Considerations.
Planning and Mobilization
The planning process is an integral element of a successful project. It allows the team to identify
features of the site or the pipe that could prevent a successful inspection. Actions can then be
implemented to mitigate any potential risk.
Pure Technologies will meet with the City to perform a site visit to assess access to the pipeline and
identify potential challenges and risks. As much information as possible on the pipeline will be
requested during the planning process. It is our understanding that the City will facilitate all civil
activity for pipeline access and tracking sensor installation, which may require modification to
existing features, excavation, tapping, traffic control, scaffolding and other activities identified
during the planning process necessary to access pipeline features determined to be critical to the
inspection. Pure Technologies will make every effort to utilize existing pipeline features where
feasible.
Activities undertaken as part of the planning and mobilization process include, but are not
necessarily limited to the following:
• Project document review
• Project planning site visit and review
• Pre-inspection coordination/meetings
• Planning document development, including tracking plan and tracking sensor installation
details
• Equipment and staffing logistics
• Tool preparation
• Pre-inspection activities required in advance of the scheduled inspection date
Based on the information gathered from the project planning site visit and all available documents,
a detailed Project Planning Document (PPD) outlining the inspection plan, including insertion and
extraction procedures and tracking sensor locations will be submitted prior to commencing the
work. The PPD will be submitted to the City in electronic portable data format (PDF) format at least
two weeks prior to the inspection, dependent on the receipt of project data, or as soon as possible
in cases of urgent mobilization. The City should review and provide comments or approval of the
PPD prior to mobilization. Any changes to the scope that arise in the planning process which
impact the pricing in this proposal will be discussed with the City and mutually agreed upon before
proceeding.
Note that some operation conditions commonly encountered during force main inspections, such
as excessive sludge on the pipe wall or pump-cycling during the inspection, can negatively impact
mapping accuracy. During this project planning phase, the Pure Technologies team will highlight
best practices to minimize these conditions, such as cleaning ahead of inspection,
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supplementation of the wet well to ensure constant pumping and/or potholing additional Control
Points. Implementing these recommendations will ensure that high quality data is collected and
reported.
During the site visit, GPS location data will be collected for all Control Points and Reference Points.
Chambers and vaults must be opened to ensure that the GPS points are recorded above the actual
pipeline feature or to add an offset to the GPS points.
Planning and Mobilization Deliverables
1. Project Planning Document that outlines the inspection plan, including insertion and
extraction procedures and tracking sensor locations.
Inspection
SmartBall tracking sensor installation will be completed prior to inspection and may take one to
two days, depending on sensor locations and accessibility. It is expected that the City will provide
assistance with any sensor installations that require soft digs or pavement coring to access the
pipeline and will provide appropriate traffic control during tracking installations, if required, as
outlined in the PPD.
The inspection is anticipated to take 2-3 days to complete.
Tracking teams will be assigned to monitor the tool’s
movement through the pipeline. If required, the City will
provide traffic control during the inspection at each tracking
sensor location. Coordination with operations staff will be
required throughout the duration of the inspection,
particularly for activities such as valve operation, pump
management, etc. These activities will be outlined in the
PPD. Upon completion of the inspection, data will be
downloaded from the SmartBall tool and shared with the
Pure Technologies analysis team.
The SmartBall tool is typically inserted into force mains
through the open bonnet of an isolated check valve in a
pump station but can be inserted using any new or existing
4-inch full bore flanged valve (e.g., an isolation valve under
an air release valve or other pipeline feature), gravity
transitions, or bypass piping.
Extraction of the SmartBall tool is typically performed by installing a metal bar screen at a gravity
transition manhole or other depressurized feature. The SmartBall, which is rolling along the bottom
of the pipe, will be stopped by the bar screen and a net is used to extract it from the pipeline.
Other extraction methods are possible and can be evaluated by the SmartBall technical experts for
feasibility. An example of extracting the SmartBall tool with Pure Technologies’ standard bar screen
is shown in Figure 5.
Leak and gas pocket locations are determined using data recorded by the sensors onboard the
SmartBall tool as well as that recorded by the tracking devices. This data is also used to determine
Figure 5. Example of Bar
Screen Extraction of the
SmartBall Tool
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if a leak is occurring on a pipe joint, barrel, or pipeline feature. Leaks occurring on the barrel of a
pipe may indicate the pipe has been structurally weakened and is in danger of failing. Experience
has shown our analysis methods are accurate to within approximately ±6 feet.
Prior to demobilizing from the inspection, the Pure Technologies team will review data recorded by
the SmartBall tool and investigate suspected medium and large leaks identified during the
inspection. The results from this analysis will be communicated directly to the City through email,
phone, or in-person. To investigate, personnel will travel to the location of the suspected leak to
look for obvious signs of leakage, listen with a ground microphone, investigate nearby pipeline
features and manholes, and will record additional GPS points used to improve the final reported
location of the leak that will be delivered in the draft report.
For the optional mapping services, the SmartBall tool will be inserted into the pipeline a second
time to acquire the data needed to map the pipeline alignment. The pipeline alignment will be
determined using motion data collected during inspection runs, as well as advanced algorithms.
Further details on considerations related to the pipeline inspection such as pressure, flow
requirements, or insertion/extraction requirements can be found in Appendix A, SmartBall
Inspection Consideration.
Data Analysis
The Pure Technologies analysis team will analyze the data collected by the SmartBall platform to
document details of acoustic events including acoustic intensity plots and tracking details. A dig
sheet will be developed for each leak to aid in location and excavation. Dig sheets include an aerial
view of the pipeline alignment and detail a leak location based on the distance from the leak to the
nearest upstream and downstream pipeline features.
The location of gas pockets will be provided by reporting the start and end point of each gas
pocket in relation to the nearest upstream and downstream pipeline features. An aerial view of the
pipeline showing the approximate location of the gas pocket will also be included.
For the optional pipeline mapping, data analysts will use the SmartBall directional data, along with
field collected GPS points and pipeline bearing information, to create a geodatabase that
characterizes the true alignment of the pipeline. This alignment is then compared to available
pipeline information, such as an existing pipeline geographic information system (GIS) and as built
drawings, to identify conflicts or confirm the assumed pipeline alignment. In areas where the
SmartBall-derived alignment agrees with a utility’s records, the utility can feel more confident the
assumed location of the pipeline is close to actual. If a conflict is identified, a targeted effort of
exposing the pipeline, line finding and/or surveying at these specific areas may be warranted
depending on the location accuracy required for the subject pipeline.
The error range of the mapping results will be calculated considering the distance between control
points, availability of GPS points and pipeline heading, and quality of rolling motion of the
SmartBall tool. A comparison between the SmartBall Mapping Line and a utility’s GIS is shown in
Figure 6.
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Figure 6. The SmartBall Mapping Line Compared to a Utility’s GIS
Data Analysis Deliverables
1. Immediate notification of suspected medium and large leaks, if needed
2. Draft Inspection Report including:
• Project background and inspection details
• Details of acoustic events including acoustic intensity plots and tracking details
• A table of results identifying locations of acoustic events (e.g., leaks and/or gas
pockets)
• Dig sheets to aid in locating and excavating reported leaks, including an aerial view
of the pipeline alignment and detail of each leak location
3. Optional mapping services - geodatabase including SmartBall-collected alignment data,
GPS points, and range of accuracy. By default, SmartBall Mapping results will be
delivered in a geodatabase in the WGS84 coordinate system. Please notify Pure
Technologies if a different file format or coordinate system is required prior to executing
the project to avoid delayed delivery of the results.
4. Optional mapping services - identification of conflicts between an existing pipeline
alignment dataset and the SmartBall generated GIS alignment.
5. Final Inspection Report incorporating comments from the City.
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H2S Monitoring (Optional)
Pure Technologies proposes to install a VaporLink H2S monitor in the system in an accessible
location, such as a manhole (air release or gravity transition) or lift station wetwell, for one month. A
data log of H2S levels, temperature, and humidity will be recorded and analyzed by our
Infrastructure Solutions group to assess regulatory compliance and develop recommendations for
future actions. Water testing may be employed to measure factors such as dissolved sulfide
concentrations and pH.
The robust, moisture resistant VaporLink monitor is available in two detection ranges, (0–100 ppm,
0–1000ppm). Generally, a 0–100 ppm unit is recommended, although a 0-1000ppm unit can be
deployed when needed. For most collection lines, a 300-second recording interval is sufficient to
detect slow changing hydrogen sulfide levels. In applications where concentration levels change
more rapidly, a 60-second recording interval is preferred to assure the accuracy of collected data.
The Pure Technologies team will work with [Client] to determine the appropriate parameters for
data collection.
H2S Monitoring Deliverable
1. The final inspection report will include a one-month data log, analysis findings, and
recommendations. This analysis will enable a comparison to recorded gas pocket locations,
pipe wall measurements, fluid velocities and retention times, and will level-set the overall
management recommendations proportionate to the risk, or expected useful life, associated
with the quantified levels of H2S.
Condition Assessment Engineering
Transient Pressure Monitoring
Pure Technologies will install Pressure Impulse Recorders at LS 70, LS 63 and LS 7 to collect
pressure data for at least 30 days. The recorder can be programmed to record the minimum,
average, and maximum background operating pressure every five minutes.
Pure Technologies will then remove the recorder and incorporate the results in the final report. The
raw monitoring data will be provided in spreadsheet format. Transient monitoring will be
performed concurrently with project planning and implementation to maintain project schedule.
Field Verifications (Optional)
A summary of the typical field verification protocols is summarized below:
• Prior to external testing, pipe diameter and length will be measured. The pipe’s
identification, station location, or length to known reference point will be boldly marked or
painted on the pipe to be clearly seen in photographs. Photographs will be taken of the in-
situ pipe from various angles.
• Burial depth will be measured as well as notation made on potential live loading.
• GPS points will be captured for pipe and excavation including elevations and photographs
are recorded.
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Design Check (Optional)
Using the equations and requirements presented in the relevant standard and design manual, Pure
Technologies will calculate the minimum area of pipe wall thickness required to withstand both
internal working pressure, instantaneous surge pressure, and external loading along the length of
the pipeline. This analysis assumes uniform wall thickness as opposed to evaluating the effects of
individual defects.
Probability of Failure (Optional)
Wall thickness data for metallic pipes will be statistically analyzed to evaluate the failure probability
for the force mains. A Monte Carlo simulation is used to estimate remaining wall thickness and rate
of loss based on the results of the SmartBall surveys, actual wall thickness measurements obtained
during field verifications and the structural evaluation.
Condition Assessment Engineering Deliverables
1. Geodatabase of the pipeline, segmented by individual pipes, populated with inspection
data, and structural evaluation results in a format consistent with the results of the
framework to be determined in the data management work request
2. RUL report that summarizes the methodology and results, including:
• Deterioration Projection (probability of failure for each pipe segment)
• Number of pipes forecasted to require repair up to year 2050
• Recommendations for asset management
3. Technical Report describing the analyses conducted, the results of the analyses, a
summary of all principal conclusions, and management recommendations
4. Workshop to review analysis results
City of Ocoee Responsibilities
It is expected that the activities listed below will be completed by the City. Requirements will be
determined in more detail during the inspection planning process.
• Provide information about the pipelines at least four weeks prior to the inspection date
including, but not limited to, plan and profile drawings, lay sheets, shop drawings,
manufacturing details, and details of access structures and appurtenances – if available.
• Obtain any required legal right-of-entry on the property.
• Provide support personnel during the inspection for locating the access structures, traffic
control, valve operation, pump operation, and other support as necessary.
• Provide Pure Technologies with the typical flow velocities and pressures for pipeline
operation, and the expected minimum and maximum values for each.
• Provide and maintain safe and reasonable access to all work sites throughout the inspection
and obtain permits as required.
• Prepare and/or modify existing pipeline fittings and structures as indicated by Pure
Technologies to accommodate insertion and extraction of the equipment as outlined in the
Planning Document.
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• Render confined space areas safe for the services, including lockout tagout of pumps,
valves and motors; dewatering chambers and vaults to permit movement of persons and
equipment; and vector and rodent control as necessary.
• Provide scaffolding to support SmartBall insertion or extraction if needed.
• Excavate, dewater, shore up, and/or provide scaffolding of job area and other civil activity
as necessary in compliance with Occupational Safey and Health Administration and local
standards and regulations.
• Provide pumping services to allow for insertion of the SmartBall tool through bypass piping,
if necessary.
• Operate the pipeline in a manner that will achieve the minimum required flow velocity
indicated in the Planning Document throughout the inspection.
Project Schedule
The proposed schedule for the project is shown below.
Leak Detection
Task Timing
Site visit Within 30 days following Notice to Proceed
Project Planning Document 2-3 Weeks following the Site Visit
Inspection 2-3 weeks following acceptance of Project Planning
Document
Leak investigation prior to demobilization 24 hours following completion of inspection
Draft Report 10 weeks following inspection completion (4 weeks
for gas pocket detection only)
Final Report and Geodatabase 2 weeks following receipt of comments on Draft
Report
If no response to the Draft Report is received within
30 days of submittal, the report will be finalized and
submitted to the City.
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Proposed Fee and Payment Schedule
The estimated cost for this project is based on the information provided at the time of this proposal
and detailed in the table below.
Project Pricing – SmartBall Inspection
Item Description Unit Unit Price Quantity Total Price
1 Mobilization and Project Planning LS $22,660.00 1 $22,660.00
2
SmartBall Inspection and Data Analysis –
LS 7 to WWTP – 4.1 miles (2 mile
minimum)
LS $49,173.00 1 $49,173.00
3 SmartBall Inspection and Data Analysis –
LS 70 to LS 63 – 1.4 miles LS $28,892.00 1 $28,892.00
4
SmartBall Inspection and Data Analysis –
LS 63 to WWTP – 2.2 miles (2 mile
minimum)
LS $31,158.00 1 $31,158.00
5 Transient Pressure Monitoring EA $8,250.00 3 $24,750.00
6 SmartBall Reporting LS $25,493.00 1 $25,493.00
Total SmartBall Inspection Cost $182,126.00
Project Pricing - Optional Services
7 H2S Monitoring EA $2,875.00 3 $8,625.00
8 Mapping MI $7,365.00 7.7 $56,710.50
9 Design Check (per diameter/pipe class) EA $2,946.00 9 $26,514.00
10 Field Verifications (min 2 days)
*Civil work provided by others DAY $7,000.00 4 $28,000.00
11 RUL, per diameter/pipe class, 1st diameter LS $9,517.00 1 $9,517.00
12 RUL, per diameter/pipe class, additional
diameters EA $5,000.00 4 $20,000.00
13 Condition Assessment Engineering
Reporting LS $13,596.00 1 $13,596.00
14 Traffic Control (sensor installation and
inspection plus contingency day) DAY $3,850.00 5 $19,250.00
Total Optional Services Cost $182,212.50
Notes and Assumptions
• All travel, shipping and related expenses are included in the mobilization and field data
collection/inspection fees.
• If additional work is required due to circumstances outside of Pure Technologies’ control or
based on additional requests from the City, a mutually agreed change order will be
required.
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• Costs associated with scaffolding to support SmartBall insertion or extraction are not
included in this proposal.
• A charge of 25% of the planning and mobilization fee will apply should the work be delayed
by the City within two weeks prior to agreed mobilization date. A project delayed into the
next calendar year may incur a price increase in the amount of the local Consumer Price
Index.
• A charge of 50% of the planning and mobilization fee will apply should the work be
cancelled by the City within two weeks prior to agreed mobilization date. Any other
charges incurred prior to the cancellation scenario shall be invoiced in full.
• A stand-by charge of $10,815 per crew day will apply if the project is delayed for 24 hours
or more by the City after mobilization.
• Pricing does not include custom equipment fabrication, traffic control, civil works,
permitting, confined space rescue support, lighting for night inspections, or valve
exercising. These tasks and their respective costs are the responsibility of the City unless
otherwise agreed, or is included in the project estimate above.
• Suitable access points for insertion and extraction of the inspection tool are the
responsibility of the City.
• Pipeline mapping costs include the required re-insertion of the SmartBall tool into the line.
• Cost associated with pipeline mapping appropriate only as add-on service to inspection,
not a standalone mapping project.
• Please note that Project Pricing included herein is valid for 120 days from the date of this
proposal.
• Pure Technologies’ liability and insurance for this project are standard as detailed in the
Standard Terms & Conditions included with this proposal. Non-standard conditions may be
subject to a surcharge fee equal to 5% of the total project estimate.
• All taxes, levies, duties, tariffs and other governmental charges, and any incremental
increases thereto, shall be paid by the City. Pure Technologies reserves the right to adjust
pricing and schedule of the affected goods to reflect any impact resulting from tariffs not
already included in the proposed pricing. Pure Technologies is not obligated to deliver the
goods and/or services until an agreement on the new price and/or schedule has been
reached.
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Page 15 of 21
Payment Schedule
Invoicing Schedule
Service Fee Invoicing Period
Mobilization and Project Planning $22,660.00 Upon submittal of the SmartBall PPD
SmartBall Inspection and Data
Analysis – LS 7 to WWTP – 4.1 miles
(2 mile minimum)
$49,173.00 Upon completion of the inspection
SmartBall Inspection and Data
Analysis – LS 7 to LS 63 – 1.4 miles $28,892.00 Upon completion of the inspection
SmartBall Inspection and Data
Analysis – LS 63 to WWTP – 2.2 miles
(2 mile minimum)
$31,158.00 Upon completion of the inspection
Transient Pressure Monitoring $8,250/unit Upon submittal of the draft report
SmartBall Reporting $25,493.00 Upon submittal of the final report
Optional Services As Incurred Per Unit Rate in the Fee Schedule
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Page 16 of 21
Standard Terms and Conditions
CONDITIONS OF ENGAGEMENT FOR THE PROVISION OF SERVICES
(North America)
The Proposal is issued upon and is subject to these Conditions of Engagement. If the Proposal is
accepted by the Client, these Conditions of Engagement and the Proposal will be deemed to form part
of the Contract between the Client and Pure.
1. DEFINITIONS
In these Conditions of Engagement the following definitions apply:
“Client” means any person or persons, firm or company engaging Pure to provide the Services.
“Contract” means the agreement awarded to Pure as a result of the Proposal.
“Pure” means Pure Technologies Ltd., Pure Technologies U.S. Inc., PureHM Inc., PureHM U.S.
Inc. or any of their affiliates, as the case may be, which submitted the Proposal and is a
party to the Contract.
“Proposal” means Pure's offer to carry out the Services and includes all related correspondence
plus agreed written variations or amendments thereto.
“Services” mean those services of whatever nature to be supplied by Pure under the Contract.
“Site” means the facility, land, installation or premises to which Pure is granted access for the
purposes of the Contract and may include any combination of the foregoing.
2. PURE’S OBLIGATIONS
2.1 Pure will perform the Services in accordance with the procedures described in the Proposal,
using reasonable skill, care and diligence and consistent with industry standards.
2.2 Pure will ensure that the equipment used in performing the Services is in a good and
functional state.
3. CLIENT’S OBLIGATIONS
3.1 The Client will provide to Pure full, good faith co-operation to assist Pure in providing the
Services. Unless otherwise specified in the Proposal and without limiting the generality of
the foregoing, the Client will at its own expense:
(i) ensure, if required, access to private land will be given to Pure and that any
official permits or permissions required for Pure to have access to the Site or
carry out the Services are obtained and are in force for the duration of the
Services;
(ii) inform Pure in writing of any special circumstances or danger which the execution
of the Services may entail or which are inherent in the Site, including the
existence and identity of any known hazardous substance or material;
(iii) perform such additional duties and responsibilities and provide such information
and resources as are described in the Proposal.
3.2 The description of the Services and related compensation amount set out in the Proposal will
be based upon information that the Client shall have provided to Pure, and assumptions that
Pure shall have identified in the Proposal. The Client acknowledges that if any such
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Page 17 of 21
information provided by Client is materially incomplete or inaccurate, or if the assumptions
identified by Pure are not correct, then the parties will modify the Proposal to reflect the actual
information, assumptions, and Services required, and the compensation to Pure will be
adjusted accordingly using the change order process set out in the Contract, or if there is no
such process, on an equitable basis.
3.3 Client will pay Pure within 30 days of Client’s receipt of an invoice therefrom. Client
acknowledges that Pure is entitled to payment for any and all Services performed hereunder
up and until the date of the full completion of such Services.
3.4 Upon Client’s termination of the provision of Services or any goods by Pure hereunder, Pure
will be entitled to payment for any and all goods and Services provided up to and until the
date Pure receives notice of termination from Client. Such payments will be at the rates as
provided to Client in the Proposal.
3.5 The pricing provided in the proposal shall remain firm for 12 months from the date hereof.
Thereafter, in recognition of the current inflationary environment and potential of labor and
component cost increases to Pure, a price adjustment may be requested by Pure to account
for such cost increase.
4. PROPRIETARY AND CONFIDENTIAL INFORMATION
4.1 All reports generated in the performance of the Services and delivered by Pure to the Client
will become the property of the Client.
4.2 Pure's equipment which is made available to the Client in connection with the Contract and
the raw data generated in the performance of the Services will remain the sole and exclusive
property of Pure. The Client will not acquire any proprietary rights in Pure's equipment,
systems, software, technology, inventions (whether or not patentable), patents, patent
applications, documentation, specifications, designs, data, databases, methods, processes
or know-how (“Pure’s Proprietary Technology”). Any modifications or improvements to the
Pure’s Proprietary Technology made during the performance of the Services will be the sole
and exclusive property of Pure.
4.3 Both parties agree to keep confidential all documentation and information provided by the
other during the performance of the Contract. The obligations set out in this clause 4.3 will
remain in full force and effect after any termination or expiry, as the case may be, of the
Contract.
4.4 Notwithstanding anything herein to the contrary, Contractor will have a limited, non-exclusive,
royalty-free license to utilize data collected and received in the performance of services
hereunder for purposes of (a) providing services, (b) analyzing and improving the services,
and (iii) internal research and development for the benefit of Contractor and Client’s clients.
5. LIABILITY AND WARRANTIES
5.1 Pure will indemnify and hold the Client harmless against any expense, demand, liability, loss,
claim, lawsuit or proceeding whatsoever in respect of personal injury to or the death of any
person, or any loss, destruction or damage to any tangible property and arising directly or
indirectly from the negligence of Pure, its employees, servants or agents except to the extent
caused by the negligence of the Client or any person for whom the Client is responsible. The
Client will similarly indemnify Pure.
5.2 Pure will not be liable for any loss of production, loss of use of property, loss of revenue or
profit, equipment downtime, business interruption, loss of goodwill, loss of anticipated
savings, cost of procurement of substitute goods or services, or for any consequential,
indirect, incidental, or special loss or damage suffered by the Client or any third party, or for
any punitive damages, even if advised of the possibility thereof and notwithstanding the
failure of essential purpose of any remedy.
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Page 18 of 21
5.3 Pure's cumulative liability hereunder, whether in contract, tort, or otherwise, will in no event
exceed the greater of (i) the aggregate consideration paid by the City to Pure for the portion
of the Services that gave rise to the liability, or (ii) $2 million; provided, however, that this
clause shall not limit Pure’s indemnification obligations hereunder. The report(s) and any
other recommendations or advice made by Pure relating to the pipeline or the Services will
be made in accordance with the procedures described in the Proposal, using reasonable skill,
care and diligence consistent with industry standards, but do not and will not constitute a
warranty of the pipeline’s quality, capacity, safety or fitness for purpose. Pure will not be liable
to the Client for any liability or damages that arise from the Client’s reliance upon or
application or use of such final report or recommendations or advice made by Pure in relation
to the pipeline or Services, and the Client will indemnify Pure against any liability to third
parties resulting therefrom.
5.4 Pure’s warranties for the Services will be set out in the Contract. Pure disclaims all implied
or statutory warranties or conditions, including of merchantability, merchantable quality,
durability, or fitness for particular purpose to the extent allowed by applicable law. This
means Pure’s warranty obligations will be limited to what is expressly set out in the Contract.
6. Insurance
Pure will provide the Client with a certificate of insurance evidencing the following coverages:
6.1 Commercial General Liability $2,000,000
6.2 Automobile Liability $1,000,000
6.3 Workers Compensation Statutory
6.4 Professional Liability $500,000
7. Solicitation of Employees
Pure and Client (the “Parties”) agree that, for the term of Client’s engagement of Pure, and for one (1)
year thereafter, the Parties will not:
7.1 directly or indirectly solicit, or attempt to solicit or endeavour to cause any employee,
volunteer or consultant of the other Party to leave his or her employment, volunteer or
consulting relationship; or
7.2 directly or indirectly induce or attempt to induce any customer or prospective customer of the
other Party to cease doing business in whole or in part with the other Party or solicit the
business of any customer or prospective customer of the other Party for a purpose which is
competitive with the Party’s business.
8. Special Conditions/Acknowledgement of Events.
Each Party acknowledge and agree that the global COVID-19 pandemic (“COVID-19”) is ongoing,
dynamic, unpredictable, and as such may impact the ability of Pure to meet its obligations under this
Agreement. The Parties agree that, for so long as there is an impact of COVID-19 on Pure’s
performance, all performance efforts by Pure will be on a reasonable efforts basis only and Pure shall
not be responsible for failure to meet its obligations, to the extent that it is precluded from doing so as
a result of COVID-19. The Parties shall work, in good faith, to make any reasonable adjustments that
may be required as a result of COVID-19.
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Appendix A: SmartBall Inspection Considerations
Pipeline Pressure
Inline leak detection technology is inherently more sensitive than external methods and correlators
because it brings the acoustic sensor within one pipe diameter of the leak. Acoustic leak detection
functions by detecting the acoustic signature generated by the sudden drop in pressure of water
exiting the pipeline at the site of a leak. SmartBall technology requires a minimum pressure
differential between internal and external pipeline conditions of 15 psi (1 bar) for acoustic leak
detection. For pipelines in high water tables or river crossings, the resultant hydrostatic head acting
against the exterior of the pipe wall must be taken into consideration.
During the SmartBall inspection, City staff will need to operate the system to maintain pipeline
pressures as necessary to accommodate the needs of its customers. A review of the pipeline will be
performed as part of the planning process to identify potential areas where the pressure may drop
below the minimum required pressure differential for acoustic leak detection. Additional factors
that affect acoustic leak detection include tunnels and encasements where the sudden drop in
pressure that causes the acoustic signature generated by the leak may not occur at the site of the
leak inside the pipeline, but rather at the point where the fluid exits the tunnel or encasement if the
‘leak path’ becomes pressurized between the pipe wall and the tunnel or encasement.
Approximate pressure measurements may be requested prior to and/or during the inspection to
ensure the pipeline is operating within expected conditions.
Insertion and Extraction Requirements
The SmartBall tool is typically inserted through a 4-inch (100mm) or larger full-bore flanged valve
into an active pipeline. When using standard insertion equipment, the valve should have direct
access to the pipeline with no bends in the connecting riser. The minimum internal diameter of
valve opening and pipeline access must be no less than 3.75 inches (95.3mm). A minimum of 4 feet
(1.3m) of overhead clearance is required above the flange of the insertion valve. Alternative
methods for insertion include utilizing check valves in pump stations, areas where the pipeline
transitions to gravity, or pumping the SmartBall through offset piping such as a hydrant or bypass.
If a hot tap is being performed to add an access point, the drill bit must be at least 3.75 inches
(95.3mm) in diameter and centered within the newly installed valve. Note that a 4-inch valve on an
access point installed with a drill bit smaller than 3.75 inches will not provide the clearance needed.
The SmartBall tool is typically extracted from the pipeline by installing a pressurized stack on a 4-
inch (100mm) full bore flanged valve, or larger, with a minimum internal diameter no less than 3.75
inches (95.3mm). The valve should be on the crown of the pipe and be located on a flat section of
pipeline with no vertical slopes or horizontal bends 30 feet (9m) upstream of the valve. A minimum
of 16 feet (5m) of overhead clearance is required above the flange of the extraction valve. It is
possible to core the roof of a vault above the valve with a 6-inch (150mm) or greater opening if the
vault does not have enough overhead clearance. The extraction net utilizes a tracking sensor and a
camera to confirm the SmartBall tool has been caught. Other extraction methods, such as retrieval
from a reservoir using a remotely operated vehicle, are possible and can be evaluated by the
SmartBall technical experts for feasibility.
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Page 20 of 21
Tracking
Prior to the inspection, tracking sensors will be installed along the pipeline to track the position of
the SmartBall tool. The tracking sensors function best when installed as close as possible to the
water column in the pipeline and are attached to metal surfaces of pipeline appurtenances, such as
air release valves, flanges, valves, or any other contact point on the pipeline. At these locations,
Pure Technologies staff clean an area of the pipe approximately 3 inches by 3 inches (75mm by
75mm) and will adhere tracking sensors using a fast-drying epoxy. Computers synchronized with
the SmartBall tool will be connected to the tracking sensors to calculate the location and velocity of
the SmartBall tool as it approaches and passes the tracking location. Tracking teams will set up at
tracking sensors before deploying the SmartBall tool and will ‘leap-frog’ to subsequent tracking
locations as the SmartBall tool traverses the pipeline on its way to the extraction point. A tracking
plan and details for installing tracking sensors will be included in the PPD submitted to the City
prior to the inspection.
Flow Requirements
The SmartBall tool requires a fluid velocity of 0.5 feet per second (0.15 meters per second) to
traverse flat sections of pipeline. The ideal fluid velocity for most pipelines is 2 to 4 feet per second
(0.6 to 1.2 meters per second) for traversing slopes and allowing tracking teams to relocate to the
next tracking location. The maximum fluid velocity before data quality is impacted is 6 feet per
second (1.8 meters per second) for leak and air pocket inspection and 3 feet per second (0.9
meters per second) for SmartBall mapping. The SmartBall tool usually travels at approximately 70%
of average fluid velocity. City staff will control the flow rate to confirm the requisite velocity during
tool deployment as defined in the PPD. Pure Technologies will also evaluate pumping rates and
cycle times to determine if supplemental water will be required to complete the inspection. It
should be noted that air pocket and leak detection surveys should be performed as close to typical
operating conditions as feasible.
Live Pipeline Inspection Risks
Despite meticulous planning and preparation, live pipeline inspection carries an inherent risk that
cannot be avoided. There is a possibility that the inspection platform could encounter problems
during the inspection run that could lead to loss of data, requiring a re-inspection or at worst the
tool getting stuck in the pipeline due to unforeseen or unknown obstructions. The planning
process is used to mitigate any potential risks.
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SmartBall Inspection Overview
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1589 Sulphur Spring Road, Suite 102 | Baltimore, Maryland 21227 | (717)344-0859
www.rjn.com
February 20, 2026
Richard Dilyerd
Utilities Operator
City of Ocoee
1800 A.D. Mims Road
Ocoee, FL 34761
rdilyerd@ocoee.org
Subject: Budget Proposal for Professional Engineering Services
Force Main Condition Assessments
Dear Mr. Dilyerd:
RJN Group, Inc. is pleased to submit this proposal to the City of Ocoee for the internal inspection of
the three (3) requested force main areas provided in your email on January 26, 2026. These include:
• Lift Station 63 to the Wastewater Treatment PVC force main from LF 63 to A.D. Mims Road
as well as the 978 linear feet of 24” diameter from A.D. Mims Road to the WWTF.
• Lift Station 70 to Lift Station 63 which includes 7,580 linear feet of 8” - 20” diameter pipe.
• Lift Station 7 to the 61Wastewater Treatment Facility (WWTF) which includes 13,988 linear
feet long of pipe type and ” diameter and 7,048 of 20 ” diameter force main to A.D. Mims Road
as well as the 978 linear feet of 24” diameter from A.D. Mims Road to the WWTF.
RJN, established in 1975, is a consulting firm focused on providing innovative engineering solutions
and field services. With over 90% of our clients being municipalities and public utilities, and over 85%
of our work focused on sewer collection systems, we are uniquely qualified for this project.
Key Project Goals and Objectives
The primary goal of this project is to review all available data and
records and to conduct an internal inspection of the force main. Given
the critical nature of this infrastructure, the inspection results will be
meticulously analyzed. Recommendations for operation and
maintenance methods will be provided, along with rehabilitation
recommendations if warranted, to ensure the continued reliability and
safety of the system.The inspection will include the following:
• Data collection and review
• General pump station assessment
• In-line screening assessment of force mains
• A summary of findings and conclusions
The internal screening will be completed using INGU Solutions’ in-line screening technology, a free-
floating multi-sensor technology called Pipers®.
Piper ready for deployment in Naperville, IL
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 2
The Pipers technology allows for a complete screening assessment of the pipeline including:
• Acoustic leak detection (under appropriate pressures)
• Air and gas pocket detection
• High resolution pressure sensing
• Deposit, debris, and blockage locating
• Magnetometer survey to identify significant changes in bulk wall thickness on metallic pipes
(detectable when wall loss exceeds 30%).
The deployment of the Pipers will be a joint effort between RJN and the City. RJN will perform the
preliminary planning and meet with the City to discuss their role which will include operating the pump
station and assistance with Piper insertion.
Assuring Quality and Safety
Quality Assurance
RJN is dedicated to delivering high-quality results. The data, analysis, and recommendations we
provide will guide decisions on the allocation of City’s sanitary sewer system funds. Our use of
electronic forms for data collection, featuring standardized entry and error trapping, combined with QC
tools in our in-house data management software, and our rigorous corporate training and QC
processes, ensures that our results and recommendations will offer significant value to the City.
We will also apply lessons learned from over 50 force main condition assessments completed in the
past five years using the same technology, along with additional inspections of force mains and water
mains conducted nationwide.
Safety
As an employee-owned firm, RJN’s commitment to the safety of our employees, City staff, and the
public is paramount. RJN demonstrates that commitment to safety in our internally developed and
audited safety program where our goal is to have all field staff, engineers, and project managers “RJN
Safety Certified.” Every project follows RJN’s health and safety guidelines when completing any field
work.
Price and Schedule Summary
As requested, we have broken down the pricing into three separate evaluations. The City can choose
one force main evaluation, two evaluations or all three pipeline evaluations. If the City chooses multiple
evaluations, RJN will provide discounts if the evaluations are completed in the same mobilization as
outlined in the Scope of Services.
This project will be invoiced on a Lump Sum, percent complete basis for a total not-to-exceed the fees
in the pricing schedules as outlined in Exhibit B. We will complete the inspections within four months
of an NTP and reporting within three months of the completion of inspections. RJN is ready to begin
the project immediately upon an agreement with the City of Ocoee. Complete Scope of Service,
Pricing, and Schedule are provided in the following exhibits:
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 3
• Exhibit A – Scope of Services
• Exhibit B – Pricing
• Exhibit C – Schedule
We are looking forward to the opportunity to work with the City of Ocoee on this important project. It is
our pleasure to submit this proposal to you. Please feel free to contact me at 717-344-0839 if you
would like to discuss this proposal or have any questions.
Sincerely,
W. Scott Helfrick
W. Scott Helfrick
Regional Client Manager
Scott.helfrick@rjnmail.com
(M) 717344-0859
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 4
EXHIBIT A
SCOPE OF SERVICES
RJN is proposing the following scope of services for the Force Main Assessment for the City.
1. Preparatory Work & Data Review
a. Conduct a kickoff meeting with the City to discuss the project.
b. Discuss pump station history, operation, and maintenance.
c. Gather and review all available data from the City regarding the lift station and force
main, including GIS maps and databases, design and/or record drawings,
maintenance, modification/rehabilitation, and repair records, past inspection data, lift
station operational data, and any other related data.
i. Dye Test Travel Time Calculations
ii. Finalize Launch and Retrieval Locations
d. Share follow-up questions with the City for discussion during the site visit.
e. Prepare for a field planning visit.
f. INGU Data Preparation
i. Kickoff Meeting – RJN and INGU
ii. INGU Deliverables
1. KMZ File of Force Main Paths
a. Mapping grade locates
2. Excel Elevation Profile(s)
3. Questionnaire(s)
2. Field Planning Visit
a. Meet with City staff on-site for site visit inspections. During visit, discuss any questions
that arose during the data review process.
b. Pump station field check:
i. Perform general assessments including verifying data from data review and
accessing force main access for internal inspections.
ii. Observe pump operations and conduct a dye test to measure travel time.
iii. Discuss and confirm the ability to provide supplemental water to wet well for
extended pumping of lift station to complete inspection, if necessary.
iv. GPS locate (mapping grade) lift station structure.
c. Force main field check:
i. Visually inspect all air-release valves (ARV) and structures on the force main
route. Observe valve exercising by City staff to confirm operation, if possible.
ii. Inspect force main outlet. Look for signs of corrosion and H2S gas and lamp
up the force main pipes, as able. Determine methodology for catching Pipers.
iii. GPS locate ARVs, known bends, other force main structures, and downstream
discharge structures using an antenna, and incorporate this data into a KMZ
file
d. Provide access to collected data on Clarity®, RJN’s online data management hub.
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 5
e. Discuss results of preliminary assessment with City. Confirm that internal inspection of
the force mains is feasible.
3. Internal Inspection
a. Contract with INGU on the rental of Pipers multi-sensors.
b. Provide equipment and personnel as necessary to perform internal inspection of the
force mains and retrieval of the inspection tools. Customize catching devices as
necessary for force main discharge point.
c. Work with City to assist in the launching, the operation of the pump station and the
retrieval at the discharge manhole.
i. Perform two Piper deployments for the force main.
4. Data Evaluation and Technical Memorandum (TM)
a. Review and analyze inspection results and recommendations.
i. Pipers’ technology includes the following results:
1. Acoustic leak detection
2. Air and gas pocket detection
3. High resolution pressure sensing
4. Deposit, debris, and blockage locating
b. Include a summary of the work completed and results of the internal screening.
c. Prepare a GIS map of the twin force main system, including findings from the site
inspections, document review, and internal screening.
d. Provide recommendations for further inspections, rehabilitation/repair, and/or
maintenance of the twin force main.
e. Provide high-level budgetary estimates and recommended implementation timeline
based on urgency.
f. Technical Memorandum (TM) Submittal:
i. Provide a digital draft of TM,
ii. Revise draft based on City comments and submit a digital and two hard
copies (if desired) of final TM.
iii. Provide digital copies of all data, results, and photographs from inspections.
iv. Upload final report to Clarity and submit a digital and two hard copies (if
desired).
5. Project Management
a. Provide project management services including invoicing, scope, schedule, and fee
tracking, and closeout services.
b. Meet with City staff as necessary to discuss progress of the project.
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 6
Items Requested from the City
1. Updated GIS geodatabases and/or shape files for the sanitary sewer collection system.
2. Copies of available plan sets, specifications, record/as-built drawings, hydraulic profiles, pump
records, or other documents related to the lift stations and force mains.
3. Access to sanitary structures for inspection. Assistance locating and opening seized/buried
manholes and valve vaults/boxes as required.
4. If necessary, vacuum out structures that are inundated with infiltration.
5. We request the City operate pump station and valves during Pipers launch and assist by
opening launch locations and inserting Pipers.
6. Provide supplemental water for continuous pumping of the lift station during the tests, if
necessary.
7. Provide access for instrument insertion and retrieval.
8. Assistance with traffic control in high traffic areas, as necessary.
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 7
EXHIBIT B
BUDGETARY PRICING
This project will be invoiced on a lump sum, on a percentage complete basis based on the cost
schedule below:
Pricing Terms for Invoicing: Lump Sum, Percent Complete
The cost breakdown provided herein reflects a separate lump sum fee for each identified pipe
segment. In the event that multiple segments are authorized under a single task order, RJN
anticipates achieving efficiencies in mobilization, project management, and coordination.
Accordingly, a fee adjustment may be applied to reflect these efficiencies.
If two segments are awarded concurrently under one task order, an estimated reduction of five
percent (5%) would be applied to the combined total. If all three segments are awarded under a
single task order, an overall estimated reduction of ten percent (10%) would be applied to the
combined total.
Cost Schedule
Lift Station 63 to the Wastewater Treatment Facility(WWTF)
Task Fee
Preparatory Work, Field Reconnaissance Visit &
Equipment Preparation $16,600
Internal Inspection Effort $34,500
Data Evaluation and Technical Memorandum $12,900
TOTAL $64,000
* Includes 24” diameter from A.D. Mims Road to the WWTF
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 8
Lift Station 70 to Lift Station 63
Task Fee
Preparatory Work, Field Reconnaissance Visit &
Equipment Preparation $15,600
Internal Inspections $34,500
Data Evaluation and Technical Memorandum $12,400
TOTAL $62,500
Lift Station 7 to the Wastewater Treatment Facility (WWTF)
Task Fee
Preparatory Work, Field Reconnaissance Visit &
Equipment Preparation $14,600
Internal Inspections $34,800
Data Evaluation and Technical Memorandum $23,700
TOTAL $73,100
* Includes 24” diameter from A.D. Mims Road to the WWTF
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■■ 2026 Force Main Inspection Project, City of Ocoee | Page 9
EXHIBIT C
PROPOSED SCHEDULE
RJN is prepared to start work immediately upon an Agreement.
Task Timeline
Field Reconnaissance Visit
Will be completed following the kickoff meetings with
City and INGU. To be completed within 3 weeks of a
signed Agreement.
Internal Inspections To be completed within twelve weeks of a successful
field reconnaissance visit.
Technical Memorandum To be completed within six weeks of successful
Internal Inspection.
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34 Delaware St.
New Milford, PA 18834
201-525-0088
www.americanpipelinesolutions.com
February 11, 2026
Richard Dilyerd
City of Ocoee
RE: Condition Assessment and Optional Cleaning of Approximately 39,500 LF of 8”-24" Force Main
Dear Richard,
We hope this letter finds you well. On behalf of American Pipeline Solutions, Inc. (APS), we are delighted
to present our proposal for the above-referenced project. Our team is committed to providing top -notch
services that will effectively and efficiently meet your project's requirements.
Scope of Work: The proposed prices (plus sales tax if not exempt) for this condition assessment project is
the following for each line:
LS63 EA Insight $57,000
LS70(8") EA Nemeaux $39,000
LS7 EA Insight $72,000
One time site visit for planning: $4000
Each section cost is broken down above and represents STANDALONE pricing e.g. three separate
mobilizations. It includes the following services and resources:
1. Mob/demob
2. Technicians
3. Temporary launcher installation (if required) and retrieval tools
4. One Assessment Ball run per pipeline segment
5. Above ground tracking system for monitoring (ball dependent).
6. Service vehicle.
7. Travel expenses.
8. Room and board.
Customer Responsibilities: To ensure the project's success, we request the following cooperation from
Customer Name at no additional cost or delay:
1. Assistance with ball tracking, if necessary.
2. Labor support for launcher installation and removal (if necessary).
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3. Access to the pipeline.
4. Required fitting work before APS’s arrival.
5. Required licenses or permits
6. Required traffic control
Additional Notes:
1. Any standby or additional work required will be charged according to our attached Time and
Material Rates.
2. We have not accounted for any weekend, nighttime, or holiday work in this proposal.
Company Overview
American Pipeline Solutions (APS) is a specialist pigging company headquartered in New
Milford, PA that offers a variety of pipeline services across several industries. From oil and gas
pipeline pre-commissioning services to Ice Pigging ™, plus integrity testing of water and force
mains.
APS also has experience operating smart pigs to collect integrity information, XYZ mapping data
and caliper or blockage information.
APS also owns and operates a mechanical cleaning tool to prep pipelines for Picote epoxy
coating to seal the inside of pipes to prevent buildup and corrosion.
Our technology included in this Proposal includes the following inspection service offering for
City of Ocoee’s consideration:
• Insight Water Technology’s neutrally buoyant, trackable, In-line leak and gas pocket
detection
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APS and Insight have reviewed the information provided and propose its innovative free-
swimming leak detection technology. We believe this technology is the right solution for the
following reasons:
• Inline Leak Detection: The inspection device travels inline which results in an acoustic
sensor traveling within one pipe diameter of any leaks. This provides high confidence and
sensitivity.
• Free Swimming: The free-swimming aspect of the technology means an entire
pipeline can be inspected with minimal logistics associated with operations of
the pipeline.
• Neutrally Buoyant: The neutrally buoyant aspect of the device provides two
primary benefits:
-Ability to traverse pipelines with debris on the invert.
-Ability to traverse a vertical standpipe.
• Trackability: The inspection device is trackable which permits monitoring its
progress as it traverses the pipeline and troubleshooting if problems arise.
Proposed Inspection Device
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Insight’s leak detection device is a neutrally buoyant sphere that records accurate acoustic data
as it traverses a pipeline. The data is evaluated post inspection to report the location and
magnitude of leaks and pockets of trapped gas. The shell of the s phere is made of anodized
aluminum that is covered with a brightly colored urethane to increase visibility and impact
resistance. All leak devices are pressure tested to 600 psi.
The device includes batteries, a data acquisition system, storage, two acoustic sensors,
magnetometer and an ultrasonic transponder for tracking purposes.
The proposed leak detection device is currently available in 3 and 9-inch diameters. Based on
the length and diameters of the water mains to be inspected, Insight will perform the inspection
utilizing the 3-inch ball. This device requires at least a 4-inch opening into the pipeline, but if the
Tyler modifies the pipe to allow access for the inspection, we recommend a larger opening be
constructed to make the insertion easier and provide flexibility for future inspection devices.
Tracking
A high frequency transponder inside the inspection device transmits an ultrasonic pulse every
three seconds as it travels through the water column in the pipe. Acoustic sensors placed on the
pipeline detect the pulses. The acoustic sensor is connected to a Remote Tracking Unit (RTU)
that receives the signal, calculates the location of the device, and transmits its location through
an online portal.
Technology Capabilities and Limitations
The leak detection device has the capability of detecting leaks in pressurized water mains as
small as 0.4 liters per minute under ideal conditions. In addition, the relative size of leaks is
reported as small medium, or large, based on the acoustic magnitude of the leak. The acoustic
data is also used to identify pockets of trapped gas/air by location and length.
Leaks are detected by identifying the acoustic activity or “hissing sound” associated with a leak.
The acoustic activity is generated by the pressure drop from inside the pipe to outside the pipe
where pressure is nearly zero. However, in some cases, this pressure drop may not occur at the
pipe wall. If the escaping water is trapped within bedrock or other pressure containing features,
the pressure drop may occur at a distance away from the pipeline. A minimum of 10 psi
pressure drop across the pipe wall is necessary for leak detection. In some cases, large volume
leaks can be detected under 10 psi. The ability to detect small leaks with inline acoustic leak
detection is well documented in industry technical papers.
The inspection device records and stores data onboard and thus the location of leaks are
calculated post inspection. This is done by establishing control points along the pipeline where
the location of the inspection device is known at a particular moment in time. Control points
can be established at tracking stations, diameter changes (detected by the IMU), inline valves
(some are detected by the magnetometer, and the insertion/retrieval points). The closer the
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control points on a pipeline, the more accurate the reported locations of acoustic anomalies of
interest. Ideally, control points can be spaced within 1,000 to 3,000 feet along the pipeline.
Safety and Compliance: We take pride in our team's commitment to safety and compliance with industry
standards and regulations. Our lead technicians hold DOT Operator Qualified accreditations for pigging,
abnormal operating conditions, and hydrostatic testing for fuel and natural gas systems. APS's Lead
Technicians are 40-hour HAZWOPER, OSHA 10, OSHA 30, OSHA Site Supervisors, Confined Space Entry
trained, and have TWIC credentials. APS is a member of ISNetworld and Veriforce. We have received the
2020 and 2021 Gold Safety Awards, demonstrating our dedication to maintaining a safety score of 95% in
the Construct Secure Safety Assessment Program.
General Terms and Conditions: For your convenience, we have outlined our general terms and conditions
below:
1. Price and Payments: A.) Price excludes applicable sales or local taxes, and tax liability shall be the
purchaser's responsibility. B.) Payment terms are Net 30 days from completion of services. C.) Past
due amounts over 30 days will incur a monthly finance charge of a maximum of 1 -1 ½% or an
annual percentage rate of 18 ½%. D.) This quote is based on APS's current insurance coverage ,
and any additional insurance requirements will be added to the quote. E.) All stated prices and
terms will remain in effect for 60 days from the date of this proposal. F.) No funds shall be
withheld as retainage, as APS performs a service-only project. G.) Any costs associated with third-
party compliance group membership not already covered by APS will be added to this proposal.
2. Notice of Alleged Neglect or Default: APS shall not be responsible for any charges, claims, or
demands due to alleged neglect or default on our part unless written notice thereof is delivered
within ten (10) days after the alleged occurrence.
3. Before mobilization, we require a 25% deposit of the proposed price in the Scope of Work section
above to proceed with the project. The deposit secures your project's position in our schedule
and covers the initial costs associated with planning and preparation.
4. Rescheduling Fee: If the project's start date is changed within one week of the scheduled date, a
rescheduling fee of $10,000 will be charged. This fee covers any additional expenses and impacts
on our schedule. We understand that unforeseen circumstances may arise, and we will work
closely with you to minimize any potential disruptions.
Acceptance of Proposal: Please sign and return a copy of this letter to indicate your acceptance of this
proposal. Upon receipt of the signed acceptance and the requested deposit, we will initiate the necessary
arrangements and commence the project a ccording to the agreed timeline.
We are eager to collaborate with you on this project and deliver exceptional results. If you have any
questions or require further clarification, please do not hesitate to contact us.
Thank you for considering APS as your trusted partner for this endeavor. We look forward to the
opportunity to work with you.
Sincerely,
Blake Murphey
President
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American Pipeline Solutions, Inc.
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