Item #03 Approval of Suntree Technologies Baffle Box - Flewelling Avenue Drainage System111k*c %/�
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AGENDA ITEM COVER SHEET
Meeting Date: February 4, 2014
Item #
r
Contact Name: Stephen C. Kru
Contact Number: 6002
Reviewed By
Department Director:
City Manager:
Subject: Suntree Technologies Baffle Box — Flewelling Ave. Drainage System. Commissioner
Wilsen, District 2.
Background Summary:
The Spring Lake drainage basin collects storm water from a large upland area along Flewelling Avenue.
Flewelling Avenue acts as the spine of the collector system bringing drainage east to Spring Lake. The
existing drainage system piping between Ridgefield Drive and the lake has deteriorated over time
requiring replacement to restore proper water flow and relieve flooding. The Stormwater Division
performed a drainage study of the occasional flooding in this area and produced an in -house designed
solution that has been approved by SJRWMD. Part of the design is providing a baffle box treatment
system for the stormwater flowing from the upland area before it enters Spring Lake. The existing
drainage does not provide any stormwater treatment as it discharges directly into the lake.
The Stormwater Division reviewed baffle box designs from several vendors, each with a proprietary
design that address a specific need in a specific situation. This review process also involved field
inspections of existing baffle systems used by other municipalities and their level of product satisfaction.
Following a thorough review, it was determined that Suntree Technologies' baffle box design met the
project requirements to collect debris, separate nutrients and skim oils from the water. Suntree has a
proven history of providing successful proprietary designs that are easily maintained and adhere to the
NPDES requirements by the EPA. The City previously installed a similar baffle box by Suntree for the
Prima Vista Neighborhood drainage improvements and has been very satisfied with the performance of
the unit. Public Works is requesting the Commission approve the purchase of the baffle box system
from Suntree in order to expedite the construction process. The installation and additional drainage
improvements will be contracted out under a competitive bidding process.
Public Works recommends awarding a purchase order to Suntree Technologies, Inc. for the proprietary
9.5' wide x 155 long x 9.5' deep baffle box as described in the attached proposal for a total delivered
cost of $51,795.00. The purchase is adequately funded in the Stormwater budget.
Issue:
Request the City Commission to approve the purchase of a baffle box from Suntree Technologies, Inc.
Recommendations:
Recommend approval to issue a purchase order to Suntree Technologies, Inc., to provide a baffle box
as described in the attached proposal for the Flewelling Avenue /Spring Lake drainage improvements
project for a not to exceed amount of $51,795.00.
Attachments:
Suntree Technologies, Inc., Proposal.
Financial Impact:
The $51,795.00 is adequately funded in the Stormwater Division's CIP budget under the Wekiva Basin
drainage improvements.
Type of Item: (please mark with an `x')
Public Hearing
Ordinance First Reading
Ordinance Second Reading
Resolution
X Commission Approval
Discussion & Direction
Original Document/Contract Attached for Execution by City Clerk
X Original Document/Contract Held by Department for Execution
For Clerk's Dept Use:
X_ Consent Agenda
Public Hearing
Regular Agenda
Reviewed by City Attorney
Reviewed by Finance Dept.
Reviewed by ( )
N/A
N/A
N/A
2
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798 Clearlake Rd., Suite 2, Cocoa, FL 32922
Ph: 321 - 637 -7552 Fax: 321 - 637 -7554
www.suntreetech.com
Proposal 10186
1/9/2014
Order From
Ship To
City of Ocoee
Project:
150 N. Lakeshore Dr.
Flewelling Drive
Ocoee, FL 34761
Phone
407 - 905 -3100
Fax
Sales Rep
FOB
Ship Via
Terms
Ordered By PO No
LWH
Job Site
Our Truck
Net 30
Qty
Description
Unit Price
Total
1
Nutrient Separating Baffle Box®
51,795.00
51,795.00
Model No: NSBB -8 -14- Flewelling Drive -1
Includes:
Nutrient Separating Screen System w/ Lids
Enhanced Turbulence Deflector System w/ Flow Spreader
SkimBoss Floating Skimmer & Storm Boom System
HydroSlide Service System
Three 32" USF -120 Rings & Covers
H -20 Load Rated Concrete Structure
Slope Service Floors
Signature P.O. # Date:
By signing and returning this proposal to Suntree Technologies, Inc., the specifications and conditions of the proposal are agreed to
and acknowledged by the person signing. If a purchase order is required by the buyer, please FAX the purchase order along with Subtotal
the signed proposal. Proposal is void if not accepted within 90 days. In additon to its right or rights with respect to defaults
$51 , 795.00
hereunder, seller shall have the right to interest on all balances not paid within agreed upon payment period at rate of interest
computed by applying a periodic monthly rate of 1.5% to the past due balance. Seller has the right to all collection costs, reasonable 6 % Sales Tax
attorneys' fees, whether suit brought or not, includind attorneys' fees on appeal. The venue shall be in Brevard County, Florida.
$0.00
$51,795.00
Total
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Ph: 321 - 637 -7552 www.suntreetech.com
Nutrient Separating = affle = o
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Descri Functional
Captures foliage, D Ill g , If C M
litter, sediment,
phosphates,
hydrocarbons...
Everything!
Turbulence
deflectors prevent
captured sediment
from
re- suspending.
Hydrocarbons
collect in front of
skimmer and are
absorbed by
Storm Boom.
Patented
`t ►�� H a1ty
Nutrient pollutant
load is not lost to
static water and
flushed out at the
next storm event.
Separating
organic matter
from the static
water prevents
bacterial buildup.
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Hatch Hatch Hatch
Vegetation and litter is above the static water
and dries out between storm events.
With the organic pollutant load separated from
the water, the system does not go septic.
•
B
Deflector
Skimmer
Sediment
Sediment
During servicing, the screen system hinges off to the side to give
easy access to the sediment collected in the lower chambers.
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Hatch Hatch Hatch
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Deflector
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Patented
`t ►�� H a1ty
Nutrient pollutant
load is not lost to
static water and
flushed out at the
next storm event.
Separating
organic matter
from the static
water prevents
bacterial buildup.
lI� Tue a ru Evict
Hatch Hatch Hatch
Vegetation and litter is above the static water
and dries out between storm events.
With the organic pollutant load separated from
the water, the system does not go septic.
•
B
Deflector
Skimmer
Sediment
Sediment
During servicing, the screen system hinges off to the side to give
easy access to the sediment collected in the lower chambers.
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Nutrient Separating = affle = ox
Captured Debris
To the right is a photo of the
back page of a road atlas being
held 10" underwater in a
Nutrient Separating Baffle Box.
moo
yt"
After a couple of months with
no rain, the water still has no
smell and is clear. The sediment
can be clearly seen on the bottom,
and small fish and critters have
established a happy and healthy
ecosystem within the structure.
If you are reluctant to touch the water in your stormwater filtration
system because it is septic, then you have a problem because the
next storm event will flush out your system into the environment.
To the left is a view of 5790
pounds of sediment collected in
a Nutrient Separating Baffle Box
just 30 days after installation.
To the right is a view of foliage and
litter collected within the screen
system of a Nutrient Separating
Baffle Box.
Sizing The Nutrient Separating Baffle Box
Because the entire flow is always treated and head loss is so
minimal, determining the appropriate size of Nutrient Separating
Baffle Box for a project is more often an element of pipe size than
flow rate.
Model #
Inside Width
Inside Length
Standard
Height *
Recommended
Pipe Sizes
N S B B -2 -4
2'
4'
5'
4" to 12"
NSBB -3 -6
3'
6'
7'
8" to 18"
NSBB -4 -8
4'
8'
7'
12" to 18"
NSBB -5 -10
5'
10'
7'
12" to 30"
N S B B -6 -12
6'
12'
7'
18" to 36"
N S B B -8 -14
8'
14'
8'4"
36" to 54"
NSBB -10 -14
10'
14'
8'4"
42" to 60"
NSBB -10 -16
10'
16'
10'5"
48" to 72"
NSBB -12 -20
12'
20'
11'
54" to 72"
Custom sizes are available. *Height can vary as needed
0 Because water flow is not ducted off line for treatment, head loss is minimal
and comparable to a large square catchbasin. Because of this, existing
stormwater systems can be retrofitted with a Nutrient Separating Baffle
Box, without compromising the original design specifications of the
existing stormwater system.
0 All structures are load rated for at least H -20. Standard wall construction of
the structure is 6" thick steel re- enforced concrete. Concrete wall thickness
can be more heavily reinforced and thicker upon request.
0 A wide variety of manhole lids and hatches, and dampers to block off water
flow during servicing, can be incorporated into the structure.
0 Screen systems have stainless steel screens bolted into a heavy duty
aluminum framework. The screen systems are hinged to give easy access
to the lower chambers, and have a wide range of adjustments to
accommodate unforeseen variables during installation.
Pre - assembly Of The Nutrient Separating Baffle Box
Turbulence deflectors are attached to the tops of the baffles with stainless
steel bolts. Several bolts per deflector are required.
Four brackets, held in place with 4 stainless steel bolts each, secure the screen system
to the baffles. The screen system includes a wide range of positional adjustment.
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Setting The Structure
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The hole was dug
starting at 10:00am.
By 3:00pm the same
day, the entire
structure was set in
place with most of
the backfilling done.
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Because installation
is so fast, the risk of
washouts when
retrofitting existing
stormwater systems
is dramatically
reduced.
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Step 1: Set lower half
Step 3: Put sealant on joint
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Notice the custom
pipe fitting on the
inflow end. It is designed to accommodate two
18" RCP side by side. To block off the water flow
of submerged or partially submerged pipes
during servicing, internal damper systems are
available.
A Suntree representative is always
available to oversee installation to ensure
a successful project.
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798 Clearlake Road, Cocoa, FL 32922
Ph: 321 - 637 -7552 FAX: 321 - 637 -7554
www.suntreetech.com