Item #06 Approval of Change Order #1 Southwest Development Utility Improvements - Phase 1 Ocoee
florida
AGENDA ITEM COVER SHEET
Meeting Date: February 17, 2015
Item #
Reviewed By:
Contact Name: Charles K. Smith, P.E. Department Director: Charl K, P.' `.
Contact Number: 1516 City Manager: Robert Fra /
Subject: Commission approval of Change Order #1 Southwest Development Utility
Improvements - Phase 1; District 1 Commissioner Johnson
Background Summary:
The Southwest Development Utility Improvements Project (Phase 1 & Phase II) pre- stages the water
and wastewater utilities along Roberson Rd and Windermere Rd from Wesmere Parkway to Patriots
Point Drive. The City is pre- staging the work due to no single development having sufficient potential to
cause the needed construction of utilities to support development. Each party upon development shall
be responsible to reimburse the City their fair share of the construction cost of the improvements. For
details of the planned development, supporting infrastructure and cost share breakdowns for the project
see "Technical Memorandum; Ocoee Southwest Developments Utility Analysis (by Reiss Engineering)"
that is attached.
The City Commission awarded a contract to GO Underground Utilities, LLC for $249,751.00 for a phase
I project at its' December 2, 2014 meeting.
Subsequence the awarding of the project, the largest planned development, All Sports, relocated to the
Chateau Reserve parcel and intensified their development. The result was a greater fire flow demand
than originally planned requiring changes to the awarded phase I project. To accommodate the
relocated development, Inspired Living Memory Care aka: Windermere West Memory Care, the main in
front of the development and extending north to Patriots Point Dr. needs to be increased from 8" to 12 ";
and a second looping connection is needed at Patriots Point. The second proposed main will run from
Patriots Point north to an existing 16" water main crossing under Windermere Road. A visual depiction
of the proposed changes, Change Order #1, is attached vicinity map ( "Southwest Development Utilities
Improvements Phase I Project — Change Order #1.)
Issue:
Should the City Commission approve Change Order #1 to Southwest Development Utility Improvements
Phase I Project with GO Underground Utilities, LLC?
Recommendations:
Motion to accept Change Order #1 to Southwest Development Utility Improvement Phase I Project with
GO Underground in the amount of $124,983.44 and authorize Mayor execute the Change Order.
Attachments:
1. Southwest Development Utility Improvement Phase I Project Change Order #1
2. Vicinity Map ( "Southwest Development Utilities Improvements Phase I Project — Change Order
#1.)
3. Technical Memorandum; Ocoee Southwest Developments Utility Analysis (by Reiss Engineering)
Financial Impact:
The total project cost (planning, design and construction) was estimated at $586,151.00, but will
increase to $711,134.44 with funds for Change Order #1 in the amount of $126,117.64 coming from
account 404 - 533 -10 -6302 for water. Change Order #1 has $1,134.20 deduct which accounts for
difference in total change order amount and the water expense. The construction portion of the project
is $613,684.44 and will be reimbursed by benefitting parcels and the planning /design cost of $97,450.00
will be covered by the City. The estimated present value capital connection fee to be generated from
the affected parcels is $1,261,964.00.
Type of Item: (please mark with an `x')
Public Hearing For Clerk's Dept Use:
Ordinance First Reading Consent Agenda
Ordinance Second Reading Public Hearing
Resolution Regular Agenda
X Commission Approval
Discussion & Direction
Original Document/Contract Attached for Execution by City Clerk
X Original Document/Contract Held by Department for Execution
Reviewed by City Attorney N/A
Reviewed by Finance Dept. N/A
Reviewed by ( ) N/A
2
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Work Location
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_______,, ,, \---\ _
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FEDP Permit No: 012 151-DSGP
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1 Southwest Development Utility Improvement \�
Phase I Project - Change Order 1 of if #111(1110111141,1::4 �j „ ��
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DATE: Jan 2015 SCALE: See Above
o co e
florida
CITY OF OCOEE
150 North Lakeshore Drive
Ocoee, Florida 34761
*This Change Order Requires Action by the City Commission*
Southwest Development Utility Improvements - Phase 1 Project
CHANGE ORDER NO. 1
DATE: February 17, 2015 PURCHASE ORDER:
The following changes are hereby made to the CONTRACT DOCUMENTS.
Original CONTRACT PRICE $249,751.00
Current CONTRACT PRICE ADJUSTED by previous CHANGE ORDERS $249,751.00
Net Increase (Decrease) Resulting from this CHANGE ORDER $124,983.44
The current CONTRACT PRICE including this CHANGE ORDER $374,734.44
Original CONTRACT COMPLETION DATE: April 29. 2015
Current CONTRACT COMPLETION DATE adjusted by previous
CHANGE ORDERS April 29. 2015
Net Increase Resulting from this CHANGE ORDER 10 days
Current CONTRACT COMPLETION DATE including this
CHANGE ORDER May 9, 2015
Southwest Development Utility Improvements -Phase One
1314 -06
CHANGES ORDERED:
I. REQUIRED CHANGES: Thirty hundred thirty feet (1,300) of water main south of Patriots
Point Dr. needs to be increased from 8" to 12 "; and a second 8" looping connection is needed at
Patriots Point to convey sufficient water to meet planned developments fire demand. For more
details to the changes see Vicinity Map (`'Southwest Development Utilities Improvements Phase
I Project — Change Order #1) "attached construction plan sheets.
11. JUSTIFICATION: The Southwest Development Utility Improvements Project (Phase 1 &
Phase II) pre - stages the water and wastewater utilities along Roberson Rd and Windermere
Rd from Wesmere Parkway to Patriots Point Drive. The City is pre - staging the work due
to no single development having sufficient potential to cause the needed construction of
utilities to support development. Each party upon development shall be responsible to
reimburse the City their fair share of the construction cost of the improvements.
Subsequence the awarding of the project, the largest planned development, All Sports,
relocated north to the parcel formerly identified as Chateau Reserve. The new project,
Inspired Living Memory Care aka: Windermere West Memory Care, intensified their
development resulting in greater fire flow demand than was originally planned requiring
changes to the awarded phase I project.
11I. NARRATIVE OF NEGOTIATIONS: The City Commission awarded a unit item
contract to GO Underground Utilities, LLC for $249,751.00 for a phase I project at its'
December 2, 2014 meeting. GO Undergrounds Utilities award was based on low unit bid
items which the change order has similar values. The Engineer estimate for work covered
by Change Order #1 was $165,000.00
IV. PAYMENT: Attached is `'Table 1 — Modified Bid Item Quantities New Bid Items" that
reflect a net increase of $124,983.44 based on an increase of $126,117.64 to the water fund and a
decrease of - $1,134.20 to the wastewater fund. The Inspired Living Memory Care shall be
responsible for reimbursing the City for Change Order #1.
V. APPROVAL AND CHANGE AUTHORIZATION
Change Order #1 (Commission) Southwest Development Utility Improvements -Phase
1314 -06
The original project and funding allocation was established by issuance of a CITY purchase
order, subject to the terms and conditions contained in the CITY's solicitation, Project Manual,
Drawings, Specifications, and /or the CONTRACTOR's service and price proposal, which
collectively form the terms of an agreement between the CITY and the CONTRACTOR for the
performance of the Work. This proposed change to the agreement requires approval by the City
Commission under the CITY's Purchasing Rules and Regulations and is consistent with any
prior action by the City Commission to award the Work to the CONTRACTOR. It is expressly
understood and agreed that the approval of the Change Order shall have no effect on the original
agreement other than matters expressly provided herein.
CONTRACTOR acknowledges, by its execution and acceptance of this Change Order, that the
adjustments in contract price and time shown hereon constitute full and complete compensation
and satisfaction for all costs and modifications of performance time incurred by the
CONTRACTOR as a result of this Change Order. No other claim for increased costs of
performance or modifications of time will be granted by the CITY for the Work covered by this
Change Order. The CONTRACTOR hereby waives and releases any further claims for cost or
time against the CITY arising from or relating to the matters or Work set forth or contemplated
by this Change Order.
[Balance of this page was left blank intentionally]
Change Order #1 (Commission) Southwest Development Utility Improvements -Phase
B 14 -06
RECOMMENDED BY: ACCEPTED BY:
CITY OF OCOEE, FLORIDA [contractor named
By: By:
Signature Signature
Date: Date:
Title: Title:
APPROVED BY:
CITY OF OCOEE, FLORIDA
By: Date:
S. Scott Vandergrift, Mayor
Attest:
Beth Eikenberry, City Clerk
FOR USE AND RELIANCE ONLY BY THE APPROVED BY THE CITY OF OCOEE
CITY OF OCOEE, APPROVED AS TO FORM COMMISSION IN A MEETING HELD ON
AND LEGALITY THIS DAY OF , 20 UNDER
, 20 AGENDA ITEM NO.
By:
City Attorney
Change Order #1 (Commission) Southwest Development Utility Improvements -Phase
1314 -06
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REISS ENGINEERING
Memorandum ,016 SPRING VILLAS POINT
WINTER SPRINGS, FLORIDA 32708
(407) 679 -5358 FAX: (407) 679 -5003
TO: City of Ocoee
CC: David Wheeler, City of Ocoee
Charles Smith, City of Ocoee
FROM: Reiss Engineering, Inc.
DATE: 10/25/2013
RE: TECHNICAL MEMORANDUM
Ocoee Southwest Developments Utility Analysis
Introduction
New residential and commercial developments in the City of Ocoee's service area will continue to
contribute significant flows and demands on the City's water distribution, wastewater collection, and
reuse systems. The City's Engineering and Utilities Departments would like to assess impacts of
proposed developments and their respective flow contributions on the City's existing infrastructure.
This hydraulic analysis consists of technically evaluating proposed developments in the southwest
corner of the service area (Southwest Service Area) including All Sports Memory Care, Chateau
Reserve, commercial properties and Barkeritaville water distribution and wastewater collection
systems and their connection to the City's existing system. This analysis provides the City's
Engineering and Utilities staff with technical information to make decisions regarding water main,
force main, and lift station improvements necessary to accommodate future development demands
and flows.
Methodology
REI maintains the City of Ocoee's water and wastewater hydraulic models. The latest hydraulic
models were updated based on information provided by the developers and the City. The
information provided was used to verify average and peak water demand and wastewater flow
calculations. The flows and demands were input into the hydraulic models and the revised models
were run to evaluate connection of the proposed development. Resulting connection pressures,
hydraulic grades, pipeline velocities were used to verify proposed pipe and pump sizes and to
determine any downstream impacts of the development on the City's existing systems.
Results
The following information summarizes the inputs and results of the connection analysis:
1
Southwest Service Area Water Demand and Wastewater Flow Estimates
There are currently three developments planned (All Sports Memory Care, Barkeritaville, Chateau
Reserve) and two potential developments (commercial property on the northeast corner of
Windermere Road and Roberson Road [Commercial Corner] and Expressway Authority parcel) in
the Southwest portion of the service area. Development information provided by developers and
the City or estimated is summarized in Table 1.
Table 1. Southwest Area Future Development Information
Project Input Information
Development Parcel Number Land Use Components ERU Estimate
Name
All Sports Manufactures Phase I ACLF 50
Memory Care 282231000000005 Home (A -2) Phase II ACLF 50
Dr Offices 5
Commercial Zoned Non -Ag Commercial:
Corner 282231000000006 Acreage (A -1) to be 20
determined
Zoned Non -Ag Daycare 2
Barkeritaville 282231000000003 Acreage (A -1) Restaurant 20
Expressway 312231000000048 State 5 2
Authority (A -1)
Chateau Zoned Non -Ag
Reserve 282230000000057 Acreage - 20
(R -1 AA)
Total ERUs -- -- -- 172
Estimated. Assumed commercial strip center with 1 small restaurant.
2 Estimated. Assumed commercial strip center with 5 units at 1 ERU per unit.
Water demands and wastewater flows were estimated using available development information and
standard input demand /flow factors for the City. Local and system peaking factors were applied
consistent with the City's water distribution and wastewater collection systems. The resulting water
demand and fire flow requirements for the Southwest area developments are provided in Table 2.
2 R� .
Table 2. Southwest Area Water Demand and Fireflow Estimates
Average Water
Development pirettow Peak Water Demand
Name Plans ERU GPM Demand GPM
GPM
8 inch WM to connect to
All Sports proposed 8" WM on
Memory
are Roberson Rd. extending 105 2000+ 31,500 74
east to 12 " WM stub out
at Wesmere Pkwy.
Commercial Connect to 8" WM on 20 1,500+ 6,000 14
Corner Roberson Rd.
Barkeritaville Connect to 8" WM on 22 2000+ 6,600 16
Windermere Rd.
Expressway Connect to 8" WM on 5 1,500+ 1,500 4
Authority Windermere Rd.
Chateau Connect to 8" WM on 20 1,500 6,000 24
Reserve Windermere Rd.
Total 172 - 51,600 122
Note Unit Capacit - Average daily Oow (ADF) per Pquivalent Residential Cnits (FRU) is 300 gpd I:RU for Water
Note Peak factor of 3.4 applied to Model system wide.
The resulting wastewater flow and lift station design flow estimates for the Southwest area
developments are provided in Table 3. Chateau Reserve and Barkeritaville lift stations design flow
are 80 GPM to achieve minimum velocity of 2 foot per second in a 4" force main.
Table 3. Southwest Area Wastewater Flow Estimates
Average Peak Lift Station
Wastewater Wastewater Design
Development Flow, Flow, Flow,
Name Plans ERU GPD GPM GPM
All Sports 6" FM to manhole /lift station on 105 28,350 79 100 -180
Wesmere Pkwy.
Commercial 8" gravity to lift station at All 20 5,400 15 to All Sports
Corner Sports
Barkeritaville
4" FM M to manifold All Sports 6" 22 5,940 17 80*
Expressway 8" gravity to lift station at 5 1,350 4 to Barkerita-
Authority Barkeritaville ville
Chateau 4" FM to gravity manhole at 20 5,400 15 80*
Reserve Patriot's Point Dr.
Total 172 46,440 129 260 -340
Note Unit Capacity - Average daily flow (ADF) per Equivalent Residential Units (ERU) is 270 gpd /ERU for Wastewater
Note Note Peak factor of 4 is DEP standard wastewater local peaking factor for lift station.
* Design flow of 80 GPM to achieve minimum flow of 2 ft/sec in 4' force main.
3
•
Southwest Service Area Water Distribution Schematic
A preliminary layout of water mains was prepared to serve the projected demands and meet fire flow
requirements as presented in Figure 1. The water system hydraulic model (Model) structure and
flows were updated for the Southwest service area developments. The revised Model was simulated
with the estimated peak demands and fire flows to evaluate connection of the proposed
developments. Resulting hydraulic grades were estimated based on the model runs as presented in
Table 4. Impacts to existing City water mains were evaluated and no significant negative impacts
were observed in the hydraulic modeling performed.
The resulting configuration was an 8 -inch water main loop serving the developments. If individual
developments were implemented without the entire loop in place, then a 12 -inch water main would
be required to serve the development.
Table 4. Potable Water Connection Hydraulic Modeling Results
MDF MDF + Fire Flow
ADF Connection Connection PHF Connection Connection
Development Name Pressure Pressure Pressure Pressure Size of Water Main
All Sports Memory Care 74 psi (292' HG) 71 psi (286' HG) 63 psi (268' HG) 38 psi (209 HG') 8" loop
(2,000 gpm fireflow)
Barkeritaville /Expressway 74 psi (292' HG) 71 psi (286' HG) 63 psi (266' HG) 36 psi (205 HG') 8" loop
Authority Parcel (2,000 gpm fireflow)
Chateau Reserve 74 psi (291' HG) 71 psi (285' HG) 62 psi (264' HG) 51 psi (238 HG') 8" loop
(500 gpm fireflow)
Commercial Corner 74 psi (292' HG) 71 psi (286' HG) 63 psi (268' HG) 37 psi (207 HG') 8" loop
(2,000 gpm fireflow)
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Southwest Service Area Wastewater Collection Schematic
Current development plans and topology were reviewed in the undeveloped Southwest service area
and a preliminary layout of gravity collection mains, lift stations and force mains to collect the
projected flows was prepared as shown in Figure 2. The City's wastewater hydraulic model was
updated with this preliminary layout and the revised Model simulated with the estimated peak flows
to evaluate connection of the proposed developments. Resulting hydraulic grades were estimated
based on the model simulations. Impacts to existing City wastewater collection system were
evaluated. Pipe and pump sizing and necessary improvements to the existing City system were
identified. A summary of wastewater modeling results per development are presented in Table 5.
Table 5. Wastewater Transmission Connection Summary
Peak
Condition Runout Proposed Minimum
Development Discharge Design Condition Force Force Main
Name Location Flow /HGL Flow /HGL Main Size Velocity
Manhole on
Wesmere 100 gpm/ 180 gpm/
All Sports 136' HGL 130' HGL 6 "* 2.0 fps
Memory Care Parkway just
N. of Roberson (6 psi) (4 psi)
Barkeritaville/ Manhole on
Expressway Wesmere 80 gpm/ 80 gpm/
Authority Parkway just 142' HGL 134' HGL 4" 2.0 fps
Parcel N. of Roberson (9 psi) (6 psi)
Manhole on 80 gpm/ 80 gpm/
Chateau Patriots Point 132' HGL 132' HGL 4" 2.0 fps
Reserve Dr. just E. of
Tomyn Blvd. (5 psi) (5 psi)
Manhole on n /a: gravity
Commercial Wesmere 11 gpm to All n/a n/a
Corner Parkway just Sports
N. of Roberson
Notes:
- HGL = hydraulic grade line
- Estimated Roberson force main discharge elevation = 123' (should be verified)
- Estimated Tomyn force main discharge elevation = 122' (should be verified)
- Does not include onsite /station piping and minor station losses
- *4" force main would result in higher velocity and pump heads, decision to be made by
developer and City of Ocoee
6 IMP REISS ENVIRONMENTAL
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Cost Sharing Calculations
Estimates of probable construction and non- construction costs were prepared for the required water
and wastewater infrastructure to calculate developers' pro -rated cost portions using a volumetric
method. The current arrangement is for the developers to bear the construction costs, and the City
would bear non- construction costs. Developer cost share calculations for the construction cost
portion are shown in Table 6. Non - construction costs were estimated as 25% of construction costs
to account for administrative, legal, engineering and contingency costs. The construction and non -
construction cost share calculations and results are presented in Table 7.
Table 6. Percent Water and Wastewater share by ERU
Componen Commercial Expressway
t Location All Sports Corner Barkeritaville Chateau Reserve Authority City Total
Roberson Rd 105 20 22 0 5 0 152
6" Force Wesmere Pkwy to
Main All Sports 69.1% 13.2% 14.4% 0% 3.3% 0% 100%
Roberson Rd 0 0 22 0 5 0 27
4" Force Windermere Rd All
Main Sports to 0% 0% 81.5% 0% 18.5% 0% 100%
Barkeritaville
0 0 0 20 0 0 20
e Force Patriot's Point Dr to
Main Chateau Reserve 0% 0% 0% 100% 0% 0% 100%
Windermere Rd- 105 20 22 20 5 0 172
Patriot's Point Dr to
8" Water Roberson Rd. and
Main Roberson Rd- 61.0% 11.6% 12.8% 11.6% 2.9% 0% 100%
Windermere Rd to
Wesmere Parkway
Notes:
- Onsite utilities piping and infrastructure is the developers' sole responsibility
- Gravity wastewater collection mains from the Corner Commercial property to All Sports collection system,
and from the Expressway Authority Property to the Barkeritaville collection system are solely the
developer's cost responsibility and are not included in this table.
- All Sports and Barkeritaville onsite wastewater utilities designs should accommodate gravity inputs from
adjacent properties.
8 CIO Russ LNV1 tONMI N IAI
Conclusions
The City's hydraulic models were run to evaluate the development's water and wastewater
connection conditions and estimate downstream impacts to existing City utility infrastructure. The
resulting connection information is summarized in tables above. It should be noted that the
hydraulic models are not yet field calibrated, therefore, field data collection by the design engineer
and the City is recommended to confirm model results. Based on the hydraulic model analyses the
following conclusions are summarized:
Water
1. The proposed All Sports, Barkeritaville, Expressway Authority, Chateau Reserve, and
Commercial developments would be served potable water from a proposed 8 -inch diameter
pipe loop on Windermere Road and Roberson Road.
2. Based on model results, connection pressures available from the potable water distribution
system range from 62 to 72 psi and, once the proposed pipe loop is completed, there is a fire
flow capacity of at least 2,000 gpm with a residual pressure of 37 psi at the proposed
connection points.
3. Based on model results, the impact of the proposed development did not result in
capacity issues for any existing City water infrastructure.
Wastewater
4. The design of the lift station at All Sports should be based on an 8" gravity main flowing
into the lift station from the adjacent Corner Commercial property to the west and a 6"
force main from the site to the gravity manhole at Wesmere Parkway.
5. The design on the lift station at Barkeritaville should be based on an 8" gravity main
flowing into the lift station from the adjacent Expressway Authority to the north and a 4"
force main from the site to manifold to the 6" force main at All Sports.
6. Because of the shorter piping distance, it was assumed that Chateau Reserve would go
north and that force main would be 1 00% Chateau Reserve's responsibility. Therefore,
the design of the lift station at Chateau Reserve should be based on a 4" force main
connecting to the 8" gravity manhole at Patriots Point Dr. and Sugar Cove Ct.
7. Based on model results, the impact of the proposed development did not result in
capacity issues for any existing City wastewater infrastructure.
9
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