SW1221003_O&M Agreement/Plan_20221031

Operation & Maintenance Agreement
Project Name:
Project Location:
Mills River Townhomes Single -Family Attached Development
2211, 2253 & 2035 Jeffress Road, Mills River NC 28759
Cover Page
Maintenance records shall be kept on the following SCM(s). This maintenance record shall be kept in a log in a known set location.
Any deficient SCM elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can
affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the SCM(s).
The SCM(s) on this project include (check all that apply & coi
Infiltration Basin
Quantity:
Infiltration Trench
Quantity:
Bioretention Cell
Quantity:
Wet Pond
Quantity:
Stormwater Wetland
Quantity:
Permeable Pavement
Quantity:
Sand Filter
Quantity:
Rainwater Harvesting
Quantity:
Green Roof
Quantity:
Level Spreader - Filter Strip
Quantity:
Proprietary System
Quantity:
Treatment Swale
Quantity:
Dry Pond
Quantity:
Disconnected Impervious Surface
Present:
User Defined SCM
Present:
Low Density
Present:
onding O&M sheets will
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
Location(s):
/4' Location(s):
Location(s):
Location(s):
No Location(s):
Yes Location(s):
No Type:
De aaaea automaucai
135.39 / -82.57 1
acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for
each SCM above, and attached O&M tables. I agree to notify NCDEQ of any problems with the system or prior to any changes to
the system or responsible party.
Signature:
Responsible Party:
Title & Organization:
Street address:
City, state, zip:
Phone number(s):
Email:
David Benjamin Graves
Manager & Mills River TH, LLC
1855 E. Main Street, Ste 14-7
Spartanburg, SC 29307
843-615-7604
[e-mail]
Date:
i a Notary Public for the State of Spti�t Ct� rod; Gam.
County of V1-r,� S6,L4 do hereby certify that �D�iV —� ��.trr+:,� C-ZY"t S
personally appeared before me this S day of C)C.1 �72✓ 2�D^2--2-- and
acknowledge the due execution of the Operations and Maintenance Agreement .
Witness riVjhorm6ppd official seal, _, ` l L Uv � •
Seal
My commission expires 10 / t-7 l 2b -2�
STORM-EZ 10/512022
Version 1.5 O&M Agreement Page 1 of 1

IIIV 2 � Ab

TABLE OF CONTENTS
INTRODUCTION ............................... 2
BAYFILTER...................................3
BASIC PRINCIPLES OF FILTRATION ............... 4
BAYFILTER PRODUCTS ......................... 6
BAYFILTER OPERATION ........................ 8
SYSTEM DESIGN & SIZING ..................... 10
INSTALLATION...............................15
INSPECTION & MAINTENANCE .................. 17
AVAILABILITY & COST ......................... 18
BAYFILTER SPECIFICATIONS ................... 18
INTRODUCTION
Clean water is essential to quality of life. BaySaver Technologies is 100% committed to minimizing pollution in
stormwater which helps protect our water resources. By collaborating with the regulatory and engineering community
to develop products and processes, BaySaver continually develops state of the art stormwater filters that are proven
to effectively remove pollutants such as sediments, phosphorous, metals, nitrogen, trash, and hydrocarbons.

BAYFILTER
The BayFilter cartridge system is an ongoing commitment to state of the art stormwater treatment. The compound
spiral media configuration allows for a large filter surface area in a compact footprint. This configuration results
in the most efficient and effective stormwater filter available in the marketplace. The BayFilter is available in
multiple sizes with multiple media configurations to meet any flow rate and design consideration while being able
to target specific pollutants. A BayFilter System is typically a concrete structure (precast vault, manhole, or cast
in place structure) with a single or multiple BayFilter cartridges. Inside the structure the BayFilters are connected to
an outlet manifold through which the treated water exits the system.
POLYMER
SEAL
INLET
DRAI NAG E
MATERIAL
MEDIA
SPIRAL
OUTLET
DRAINAGE
MATERIAL
BayFilter Cutaway
Plan View
OUTLET PIPE
AIR RELEASE VALVE
OUTLET
PATHWAY
FLOW
CONTROL
ORIFICE
INLET
PLATE
FI LTER
LEG
Profile View
LLLL�Y� 9to

BASIC PRINCIPLES OF STORMWATER FILTRATION
Stormwater treatment has unique requirements, which
often require the treatment of large volumes of water at
relatively high flow rates to high levels of pollutant removal
with long periods of time between maintenance intervals.
At BaySaver we believe it is our responsibility to engineer
a balance within these variables to provide effective
stormwater treatment at an exceptional value to our clients.
What makes for an effective and efficient stormwater filter?
A filter must be able to remove the pollutants of concern
and function for a reasonable period of time as defined by
industry and regulatory standards. A filter system should also
be designed to limit re -suspension or release of pollutants
that have been collected between maintenance periods.
The traditional pollutants of concern in stormwater is
sediment. Phosphorous, metals, turbidity, nitrogen, fecal
coliform, and bacteria are also pollutants of concern although
they are not commonly regulated nationwide. BaySaver
Technologies has completed both field and laboratory testing
of the BayFilter. Testing demonstrates BayFilter's effectiveness
and efficiency at capturing the pollutants listed above.
Settling and filtration are the two primary methods to
remove pollutants from stormwater. Some settling of
particles and pollutants occurs as the influent enters the
filter vault. Settling typically removes the larger particles
and debris, it does not remove the small particles or any
dissolved materials. It is the filter which performs the
work of removing the very small particles, and dissolved
nutrients and metals. The media within a filter must be small
enough to intercept the tiny sediment particles which won't
settle (fig. 1), and be capable of attracting and attaching
charged and elemental particles through ion exchange.
The area of media provided by a stormwater filter is an
important factor to consider when selecting and specifying a
filter system. The more surface area provided by the media,
the greater the potential flow through and across the media
and the greater the pollutant removal potential of the filter.
The vertically oriented and patented compound spiral media
Figure 1: Coarse Industry Media
Figure 2: BayFilter Media

configuration of the BayFilter maximizes a media filter's area
potential. The particle size of the media is also important with
respect to pollutant interception and adsorption. A tightly
packed, fine media (fig 2) captures a greater percentage of
fine and dissolved pollutants when compared to a loosely
packed, coarse media or a membrane media. A fine and
tightly packed media not only minimizes the interstitial
spaces between the media particles to optimize interception
of pollutants, it also maximizes the amount of surface area
in a given volume provided by the media for ion exchange.
The quantity of sediment a filter is capable of capturing is
a significant component to filter longevity. A filter must be
able to treat large quantities of sediment while maintaining
claimed flow rates and removal efficiencies. The sediment
loading capacity of the BayFilter is 350 pounds (158.7 kg) for
the 45 gpm (170.3 Ipm) and 30 gpm (113.6 Ipm) cartridges.
Surface area and loading rate contribute significantly to filter
longevity. Greater filter surface area (sf) allows for a reduced
loading rate (gpm/sf of filter media), which in turn increases the
service life of the filter. For example, a 10 square foot (0.9 m2)
filter with a loading rate of 1 GPM (3.8 I/min) per square foot
of filter area will pass 10 GPM (37.9 I/min). A 20 ft2 filter with a
loading rate of 0.5 GPM (1.9 I/min) per square foot of filter area
will also pass 10 GPM (37.9 I/min). If one gallon of treated water
will occlude one square foot of filter area every 10 days, a 10 ft2
(0.9 m2) filter flowing at one GPM (3.8 I/min) will be expired in
100 days. A 20 ft2 (1.9 m2) filter flowing at 0.5 GPM (1.9 I/min)
will be expired in 400 days. Increasing media area and
reducing flow rate has a beneficial impact on pollutant removal
and filter longevity and these are some of the core engineering
principles on which the BayFilter design is based.
BaySaver Technologies is committed to the purpose of
protecting public waterways. Permanently capturing
pollutants, effectively backwashing media, allowing media to
drain between storm events, and providing an economically
reasonable maintenance interval are key design parameters
for properly functioning stormwater filtration systems. The
BayFilter cartridge system helps meet and exceed these
key requirements needed to protect our water resources.
, 0"t,16 7WO21
Top of Cartridge
Bottom of Cartridge

BAYFILTER PRODUCT DETAILS
BayFilter 545
Size = 28" (711 mm) diameter
Weight = 250 lbs. (113 kg)
Media Area = 90 ft2 (8.4 m2)
Flow Rate = 45 gpm (170 I/min)
Flow Rate per Square Foot = 0.50 gpm/ft2 (20 I/min/m2)
Minimum Operational Head = 32" (813 mm)
Recommended Design Head = 34" (864 mm)
Sediment Capture Capacity = 350 Ibs (159 kg)
Manifold Diameter = 6" (152 mm)
BayFilter 530*
Size = 28" (711 mm) diameter
Weight = 250 Ibs. (113 kg)
Media Area = 90 ft2 (8.4 m2)
Flow Rate = 30 gpm (114 I/min)
Flow Rate per Square Foot = 0.33 gpm/ft2 (13 I/min/m2)
Minimum Operational Head = 30" (762 mm)
Recommended Design Head = 32" (813 mm)
Sediment Capture Capacity = 350 Ibs (159 kg)
Manifold Diameter = 4" (102 mm)
BayFilter 522**
Size = 28" (711 mm) diameter
Weight = 125 Ibs. (57 kg)
Media Area = 45 ft2 (4.2 m2)
Flow Rate = 22.5 gpm (85 I/min)
Flow Rate per Square Foot = 0.50 gpm/ft2 (20 I/min/m2)
Minimum Operational Head =18" (457 mm)
Recommended Design Head = 20" (508 mm)
Sediment Capture Capacity = 175 Ibs (79 kg)
Manifold Diameter = 3" (76 mm)
6'
O
36'
32'
6'
B.AYFILTER 545 028'
I
BayFilter 545
d 4'
34'
30'
x
BArFILTER 530 028'
BayFilter 530
1'
Q x
22• 18' TBAYFILTER
522
mze•
BayFilter 522
NOTES: The 500 series is for
Total Suspended Solids (TSS) and
Phosphorous and utilizes EMC media.
*BayFilter 530 replaces BFC cartridge.
** BayFilter 522 replaces 545L cartridge.

BayFilter 645
Size = 28" (711 mm) diameter
Weight = 250 lbs. (113 kg)
Media Area = 90 ft2 (8.4 m2)
Flow Rate = 45 gpm (170 I/min)
Flow Rate per Square Foot = 0.50 gpm/ft2 (20 I/min/m2)
Minimum Operational Head = 32" (813 mm)
Recommended Design Head = 34" (864 mm)
Sediment Capture Capacity = 350 Ibs (159 kg)
Manifold Diameter = 6" (152 mm)
BayFilter 630
Size = 28" (711 mm) diameter
Weight = 250 Ibs. (113 kg)
Media Area = 90 ft2 (8.4 m2)
Flow Rate = 30 gpm (114 I/min)
Flow Rate per Square Foot = 0.33 gpm/ft2 (13 I/min/m2)
Minimum Operational Head = 30" (762 mm)
Recommended Design Head = 32" (813 mm)
Sediment Capture Capacity = 350 Ibs (159 kg)
Manifold Diameter = 4" (102 mm)
BayFilter 622
Size = 28" (711 mm) diameter
Weight =125 Ibs. (57 kg)
Media Area = 45 ft2 (4.2 m2)
Flow Rate = 22.5 gpm (85 I/min)
Flow Rate per Square Foot = 0.50 gpm/ft2 (20 I/min/m2)
Minimum Operational Head = 18" (457 mm)
Recommended Design Head = 20" (508 mm)
Sediment Capture Capacity = 175 Ibs (79 kg)
Manifold Diameter = 3" (76 mm)
k
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6'
BAYFILTER 645 28
BayFilter 645
Q 4-
3d' 22.5' x
30'
4' x
8AYFILTER 630 028,
BayFilter 630
3"
O
BAYF•LTER 622
BayFilter 622
NOTES: The 600 series is for enhanced
metals treatment.

BAYFILTER OPERATION
Stormwater runoff enters the manhole or concrete structure
via an inlet pipe and begins to fill the structure. When the
water surface elevation in the vault/manhole reaches the
minimum operating level, water flows through the BayFilter
driven by a hydrostatic head. Within the BayFilter, the water
flows through a proprietary filter media and drains via a
vertical pipe. The vertical pipe is connected to the under
drain system, which conveys filtered water to the outfall.
During atypical storm event, the BayFilter
system has four cycles:
A. BayFilter cartridge fills and releases air
B. Positive head filtration
C. Siphon (negative head) filtration
D. Siphon break and hydrodynamic backwash
The cycle operation of a BayFilter is as follows:
A. BayFilter cartridge fill and air release: The BayFilter vault
and BayFilter cartridges fill when stormwater flow enters
the system. As the vault fills, water enters the BayFilter
cartridge through the inlet plate on the bottom. Air is
purged from the media spiral and filter housing during
this process.
The air release is critical for the proper functioning of the
siphon. The siphon draws flow through the BayFilter
during periods of low water in the vault.
BayFilter Vault
OUTLET PIPE
AIR RELEASE VALVE
�
l.J
POLYMER
SEAL---
• --
OUTLET
I _
PATHWAY
INLET
DRAINACE
MATERIAL
:
MEDIA
FLAW
• CONTROL
SPIRAL;;,
M1
ORIFICE:
OUTLET
DRAINAGE
MATERIAL.•
I.
INLET
PLATE
FILTER
LEG
.01
BayFilter Cutaway
Cartridge Filling
_VE

B. Positive Head Filtration: Water enters the Filter from the
bottom of the filter housing and travels upward through
the inlet -flow conduit -spiral. From the inlet spiral,
untreated water flows horizontally through the
engineered media. Treated water exits the engineered
media and flows into the outlet -flow conduit -spiral.
Treated water flows vertically to the top of the cartridge
where it can exit through the outlet pipe —please see
product details (pg.6) for operating head levels. Finally,
filtered water leaves the system via the outlet.
C. Siphon (Negative Head) Filtration: After the water level in
the vault falls below the top of the filter cartridge -
minimum operating head level, a siphon is established
and water will continue to flow through the filter media
until the siphon is broken. During siphon, the water level
in the vault will decrease until it reaches the inlet plate
of the BayFilter.
D. Siphon Break and Hydrodynamic Backwash: When
the water level drops below the inlet plate, air enters
the filter and the siphon breaks. Once the siphon breaks,
a gravity -driven backwash occurs with all of the water
flowing from the outlet pathway backwards through the
filter media. This backwash has the effect of dislodging
particles captured in the filtration layers and
re-establishing porosity. Dislodged particles are
transported back in to the filter vault and accumulate
on the filter vault floor.
Each BayFilter has a maximum flow rating. At this flow,
each cartridge can treat the specified total sediment
load before requiring maintenance. BayFilter flow may
also be custom regulated to meet specified design
parameters by modifying the flow control orifice. Please
contact BaySaver for custom design requirements.
Positive Filtration
Siphon Filtration
Siphon Break
Backwash

BAYFILTER SYSTEM DESIGN &SIZING
The BayFilter cartridge system design is easily
completed in four phases:
A. BayFilter System Configuration
B. BayFilter Site Plan Placement
C. BayFilter System Sizing
D. Final Check
The design process can be iterative until the determined
design parameters are satisfied. Some of the items to
consider when designing a stormwater filtration system:
• Site specific constraints and proposed
BayFilter system location
• BayFilter system configuration —on-line or off-line
• Pretreatment requirements
• Operating head
• Treatment efficiency requirements and local regulations
• Pollutant loading (sediment load)
• Treatment flow rates and hydraulics
• Maintenance intervals
BAYFILTER SYSTEM CONFIGURATION
BayFilter systems can accommodate any treatment
flow requirement. The peak design flow through the
storm drain system will be significantly greater than
the treatment design flow through BayFilter. It is a best
practice to only convey the required treatment flow
through a stormwater filter and this will extend the filter's
life cycle. Conveying the peak design flow around a
stormwater filter is considered off-line treatment.
Off -Line Design
Schematics of off-line BayFilter systems are shown below.
In Figure 1, the bypass structure diverts treatment flows to
the BayFilter system and allows high flows to pass to a
separate outfall. The bypass structure will feature flow
controls designed by an engineer to ensure that the required
treatment flows are sent to the BayFilter. In Figure 2, this
same concept is accomplished within a 3-chamber vault.
In stormwater filter system installations, sediment
will accumulate in the filter cartridge and on the vault
floor. In off-line installations, high intensity flows are
routed away from the vault minimizing the risk of re-
suspending the sediment accumulated on the vault
floor. In online applications it is possible for high
flows to mobilize and release this sediment.
OVERFLOW
PIPE
FLOW- `JUNCTION
SPUTTER MANHOLE
INLET PIPE OUTLET PIPE
6AYFI LTER
Figure 1: Offline Configuration
External Bypass
w
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�7
Figure 2: Inline Configuration
Internal Bypass

Operating Head
Head is required to activate BayFilter flow and establish
siphon flow. The height of individual BayFilter cartridges
will determine the operating head. Please consult
product details for individual operating head levels. The
drainage system and network does not need to provide
the operating head. Filter systems can easily be designed
on sites where the elevation drop of the hydraulic grade
line is less than the required operating head of the filter.
Consult BaySaver Technologies Engineering Department
for verification based on your particular site conditions.
Pretreatment
Regional regulations may require pretreatment of
stormwater flows prior to flow entering filters. Pretreatment
will remove a portion of the influent pollutant load. This
will lessen the pollutant load received by a filter and
potentially increase the maintenance interval duration.
The BaySeparatorlm system (Figures 3 & 4) is an ideal
hydrodynamic separator that removes sediments and
floatables from stormwater runoff. Please contact your
ADS representative for additional pre-treatment options.
BAYFILTER SITE PLAN PLACEMENT
Locating a BayFilter system on your site will be determined
by giving consideration to several factors including:
maintenance access, the unit's footprint, available head,
available depth, and the surface elevation of the receiving
waters. A BayFilter system must be installed in an area that
is accessible to maintenance equipment. The maintenance
of a BayFilter system requires a vacuum truck as well as
the removal and replacement of the filter cartridges. The
manhole covers, and or access hatches of the BayFilter
must be placed in locations that can be easily reached
by such a vehicle. Consult the BaySaver Technologies
Engineering Department for expert assistance.
Traditional BaySeparator
Figure 3: Traditional BaySeparator
Pre -Treatment Configuration
OVERFLOW ",,,ON
PIPE MANHOLE
TREATMENT
PIPE
BAYSEPARATOR BAYFIL
Figure 4: BaySeparator FS Unit
Pre -Treatment Configuration
W 4

BayFilter System Sizing
Each BayFilter system relies on a collection of individual
BayFilter cartridges to achieve the desired removal
efficiency. Accurately determining the required
number of filters is important to efficient operation.
Undersizing a system may lead to shorten service life.
A valuable stormwater treatment system will
be provided when the three design parameters
listed below are given consideration.
Jurisdiction -specific sizing requirements
Flow capacity of the system
Treated sediment load of the system
Each parameter results in a required number of BayFilter
cartridges. After computing the number of filters for each
parameter, determine which requires the most filters, and
this is is the limiting design parameter and the number
of required BayFilter cartridges for your drainage area.
Jurisdiction
Local regulatory requirements play a significant role
in any BayFilter design. Depending on the jurisdiction
in which the project site is located, the engineer may
have to meet minimum treatment flow rates, treatment
volumes or some other criteria such as filter bed area.
Some jurisdictions specify a methodology for calculating
a minimum treatment flow rate for a given site.
Flow Capacity
Regulatory requirements will determine water quality
treatment values. The BayFilter system is simply applied by
the design professional to their computed values. Typically,
the primary treatment value is treatment flow rate (QTRT)'
This value tells us the rate at which flow must pass through
a filter system. Other common treatment values are water
quality volume and phosphorous load reduction. Please
contact BaySaver Technologies Engineering Department
when designing to volume or phosphorous requirements.
The minimum number of BayFilter cartridges can be
determined by dividing the treatment flow rate by flow
rate of the BayFilter you have chosen. This calculation
provides the minimum number of BayFilters that will be
necessary to fully treat the water quality flow from the
site. The step-by-step procedure is shown below.
BayFilter Series 500
System Sizing Table
BayFilter
Treatment
Treatment
Cartridge
Flow Rate
Volume
gpm (1/min)
f (m )
522
22.5 (85.1)
1250 (35.4)
530
30.0 (113.6)
2500 (70.8)
545
45.0 (170.3)
2500 (70.8)
BayFilter Series 600
System Sizing Table
BayFilter
Treatment
Treatment
Cartridge
Flow Rate
Volume
gpm (1/min)
f (m )
622
22.5 (85.1)
1250 (35.4)
630
30.0 (113.6)
2500 (70.8)
645
45.0 (170.3)
2500 (70.8)

Determine the required treatment flow rate (QTRT)
based on locally approved methodologies for
the project site. This may involve the use of the
Rational Method, TR-55 or another locally specified
hydrologic model. If a locally approved methodology
is not specified, BaySaver Technologies recommends
using one of these commonly accepted models.
2. Using the BayFilter cartridge treatment flow rate
(QBayFilter)' calculate the minimum numbers of BayFilter
cartridges required to treat that flow using Equation 1.
Refer to the product details for BayFilter flow rates.
The minimum number of BayFilter cartridges is
equal to the maximum treatment flow rate divided by
QBayFilter' rounded up to the next whole number.
Sediment Load Capacity
BayFilter sediment load capacity allows the professional
designer to establish the maintenance interval for the
stormwater system. Establishing a sediment load is a
straight forward computation which may be completed
once the number of BayFilter cartridges required to
treat the flow is known. With the known filter quantity, a
designer will establish the sediment load capacity for the
BayFilter system, and compare this value to the annual
sediment load for the site. The following equations may
be used to compute these values and help determine
BayFilter suitability for a specific site design.
Sediment Load Capacity Calculations
Calculate the annual treated runoff volume according
to Equation 2. VTRT is the annual treated runoff
volume, P is the average annual precipitation (in
inches), A is the area of the site (in acres), c is the
runoff coefficient of the site (c is dimensionless), and
% Capture is the fraction of the total annual runoff
that is treated by the stormwater quality system. If %
Capture is not otherwise specified, a default value of
0.90 can be used. Please check local regulations.
Using the annual treated runoff volume, calculate the
anticipated total system sediment load to BayFilter
according to Equation 3. In Equation 3, L is the mass
of sediment that BayFilter is exposed to annually
(in pounds), VTRT is the annual treated runoff volume
as calculated in step 1 (in ft3), and TSS IN is the
influent concentration of TSS in the runoff (in mg/L).
The influent TSS concentration (TSS IN)depends
greatly on the site and the surrounding land use.
In the absence of readily available data, BaySaver
Technologies recommends using a minimum event
mean concentration (EMC) TSS value of 60 mg/I.
The impact on the filter cartridge will also be less if
# Cartridges =
(c f s) x 448.8 9pm
QTRT f
Equation 1
vTRT Vt3) = PxAxcx ft12 in
Equation 2
QBayFiiter
43,560 ft2
x %capture
acre
28f.31t kg 2.21bs
CL(lbs) = vTRT x TssL71 x J t3 x 106mg x kg
Equation 3

the filtration system is preceded by pretreatment. In
these cases, the influent TSS to the BayFilter system
need to be reduced to reflect pretreatment sediment
removal. The BaySaver Technologies' Engineering
Department can assist with these calculations.
3. Once the total annual system sediment load (L) is
calculated, the engineer must ensure that the number
of cartridges specified will be able to remove that
sediment load at the specified design flow rate. Divide
the total system sediment load L by the capacity
of each BayFilter and note the associated BayFilter
flow rate. Round up to the next whole number to get
the minimum number of BayFilters required. This
quantity of BayFilters will need to treat this sediment
load at the required flow rate per BayFilter. The
BaySaver Technologies Engineering Department is
available to assist with the required calculations.
FINAL CHECK
It may be beneficial to perform a Final Check on the
BayFilter design for your site. The BaySaver Engineering
Department is available to assist you with this function.
Standard Details and Notes
Standard details are available on the Website at
www.BaySaver.com or by calling 1.800.229.7283.
BayFilter Configurations
BayFilter Systems include the four typical concrete
structures: manhole, precast vault, box culvert, and cast
in place. BaySaver Technologies can also design BayFilter
systems with Nyloplast structures, and HP Pipe manholes.
BayFilter systems in manholes have a small footprint
and easily fit into site plans. Manhole BayFilter systems
are ideal for applications downstream from water quality
detention structures. Please consult with the BaySaver
Technologies Engineering Department for more details.
When designing access for a BayFilter utilizing manhole
frame and covers a minimum of 30" (762) diameter
should be used, however, it is recommended that a
36" (914) diameter opening is used to provide ample
access for filter replacement and maintenance. In each
BayFilter system, the BayFilters are arranged so that
a maintenance worker can stand on the floor of the
manhole while installing or removing the cartridges.
Example of a manhole
BayFilter system
Example of a precast
vault BayFilter system

INSTALLATION
Note: BayFilters are not recommended to be used as
erosion control during site construction operations.
BayFilters should remain offline or uninstalled until site
stabilization has occurred. Please contact your local
ADS or BaySaver representative if you should have any
questions.
1. Contact utility locator to mark any nearby underground
utilities and make sure it is safe to excavate.
2. Reference the site plan and stake out the location of the
BayFilter manhole/vault.
3. Excavate the hole, providing any sheeting and shoring
necessary to comply with all federal, state and local
safety regulations.
4. Level the subgrade to the proper elevation. Verify the
elevation against the manhole/vault dimensions, the
invert elevations, and the site plans. Adjust the base
aggregate, if necessary.
5. Have the soil bearing capacity verified by a licensed
engineer for the required load bearing capacity. On solid
subgrade, set the first section of the BayFilter manhole/
vault.
6. Check the level and elevation of the first section to
ensure it is correct before adding any riser sections.
7. If additional section(s) are required, add a watertight
seal to the first section of the BayFilter manhole/vault.
Set additional section(s) of the manhole/vault, adding a
watertight seal to each joint.
8. Install the outlet pipe in BayFilter manhole/vault.
9. Install the inlet pipe to the BayFilter manhole/vault.
10. Install the trolley system (if applicable).
a. Attach the mounting brackets to the track.
b. Each track is split in sections. The length and
number of sections vary depending on the vault.
It is generally better to start installing longer track
sections first. Hold a section in place and align the
top of the brackets with the ceiling of the vault. Mark
the center of the hole in each bracket and remove the
track.
c. Using a hammer drill and (6 mm) bit, drill a hole
approximately 3" (76 mm) deep at each mark.
d. Hold the track back in place and realign the brackets
with the holes. Place a plastic spacer block behind
each bracket and using the supplied'/4" (6 mm) x 3'/4"
(83 mm) anchor bolts mount the track in place. Only
install one section of track at this stage.
Modular Vault Assembly
00,
Vault End Section
r-
e
4
rolley System
ab

e. Repeat this procedure on the opposite wall of the
vault directly across from the first section.
f. Bolt the 4 trolleys to the aluminum I-beam as shown
in the attached diagram. Make sure that the wheels
for each trolley are mounted an equal distance from
the top of the I-beam.
g. Lift the I-beam in to place and insert the trolleys in to
the track.
h. Using the supplied couplers, install the second
sections of track via the same procedure. Continue
until the track runs the length of the vault or as
designed.
11. Install the PVC manifold. Glue all PVC joints with the
exception of the BayFilter cartridge coupling. See Parts
List drawing.
12. After the site has stabilized, remove any accumulated
sediment or debris from the vault.
13. Install the Bayfilter Vertical Drain Down Modules (VDDM)
to the manifold system (if applicable).
14. Install a row of flow disks and the BayFilter cartridges.
Place each cartridge so the handle points across the
vault. Make sure the air valve is on the side closer to the
outlet.
15. Place one full set of one Hold Down Bar and two Retainer
Brackets into place. Mark and drill two 5/8" holes for
each bracket. After fully anchoring Retainer Brackets,
place the left end of the Hold Down Bar in position. Slide
right end into bracket and secure with U-Bolt.
16. Repeat steps 14 and 15 for each set of BayFilter
Cartridges and Hold Down Bar until the whole system
is installed. See Parts List drawing for Hold Down Bar
placement.
Tool List
• PVC glue and primer
• Crane/lifting mechanism to lower the cartridges in the
vault (each cartridge weighs 230-350 Ibs (104-159))
• Screwdriver or nut driver for Fernco° couplers
• Hammer and soft blow hammer
• Saw (in case PVC Sch 40 piping
length needs to be adjusted)
• Hammer drill
• '/4" (6 mm) and 5/8" (16 mm) concrete drill bit
• 3/4" (19 mm) wrench
Filter Tee
Flow Disc
Drain Down Module
Filter Placement
jog
Hold Down Bar Chain Hoist System
and Bracket
BayFilter Vault Overview Vault Internal Assembly

Pre -Assembled Manifold
In some areas the vaults can be provided with pre -in-
stalled manifold systems. Please contact your local ADS
or BaySaver representatives for additional details.
Inspection and Maintenance
The BayFilter system requires periodic maintenance
to continue operating at the design efficiency. The
maintenance process is comprised of the removal
and replacement of each BayFilter cartridge,
vertical drain down module; and the cleaning of
the vault or manhole with a vacuum truck.
The maintenance cycle of the BayFilter system will be
driven mostly by the actual solids load on the filter. The
system should be periodically monitored to be certain
it is operating correctly. Since stormwater solids loads
can be variable, it is possible that the maintenance cycle
could be more or less than the projected duration.
BayFilter systems in volume -based applications
are designed to treat the WQv in 24 to 48 hours
initially. Late in the operational cycle of the BayFilter,
the flow rate will diminish as a result of occlusion.
When the drain down exceeds the regulated
standard, maintenance should be performed.
When a BayFilter system is first installed, it is recommended
that it be inspected every six (6) months. When the filter
system exhibits flows below design levels the system should
be maintained. Filter cartridge replacement should also
be considered when sediment levels are at or above the
level of the manifold system. Please contact the BaySaver
Technologies Engineering Department for maintenance
cycle estimations or assistance at 1.800.229.7283.
Maintenance Procedures
1. Contact BaySaver Technologies for replacement filter
cartridge pricing and availability at 1-800-229-7283.
2. Remove the manhole covers and open all
access hatches.
3. Before entering the system make sure the air
is safe per OSHA Standards or use a breathing
apparatus. Use low 02' high CO, or other applicable
warning devices per regulatory requirements.
4. Using a vacuum truck remove any liquid and
sediments that can be removed prior to entry.
5. Using a small lift or the boom of the vacuum truck,
remove the used cartridges by lifting them out.
6. Any cartridges that cannot be readily lifted
can be easily slid along the floor to a location
BayFilter System Cleanout
Vactor Truck Maintenance
Jet Vactoring Through Access Hatch

they can be lifted via a boom lift.
7. When all the cartridges have been removed, it is
not practical to remove the balance of the solids
and water. Loosen the stainless clamps on the
Fernco couplings for the manifold and remove
the drain pipes as well. Carefully cap the manifold
and the Ferncos and rinse the floor, washing away
the balance of any remaining collected solids.
8. Clean the manifold pipes, inspect, and reinstall.
9. Install the exchange cartridgess and close all covers.
10. The used cartridges may be sent back to
BaySaver Technologies for recycling.
BayFilter Availability and Cost
BayFilter systems are available throughout the
United States from BaySaver Technologies. Material,
installation, and maintenance costs vary with location.
For BayFilter pricing in your area, please contact
BaySaver Technologies at 1-800-229-7283.
BayFilter cartridges and outlet components can be
shipped anywhere in the world. Manholes and precast
vaults are also supplied by BaySaver Technologies as
part of a complete stormwater filtration system.
BayFilter Specifications
Products
A. Internal components: all components including
concrete structure(s), PVC manifold piping
and filter cartridges, shall be provided by
BaySaver Technologies 1-800-229-7283).
B. PVC manifold piping: all internal PVC pipe and
fittings shall meet ASTM D1785. Manifold piping
shall be provided to the contractor pre-cut and/or pre -
assembled. Minor field modifications may be necessary.
C. Filter cartridges: external shell of the filter cartridges
shall be substantially constructed of polyethylene
or equivalent material acceptable to the manufacturer.
Filtration media shall be arranged in a spiral layered
fashion to maximize available filtration area. An orifice
flow control (i.e. flow disk) shall be supplied with each
cartridge to restrict the flow rate to a maximum of
45 gpm (170 I/min).
D. Filter media: filter media shall be a proprietary mix
produced by BaySaver Technologies and may consist
of the following materials: zeolite, perlite, and activated
alumina and/or other materials required to meet the
project pollutant removal requirements.
Manifold Tee View of a Cleaned System
Cartridge Hoist Point

E. Precast concrete vault: concrete structures shall be
provided according to ASTM C478, C858, and C913.
The materials and structural design of the devices shall
be per ASTM C478 and ACI 318. Precast concrete shall
be provided by BaySaver Technologies.
Performance
A. The stormwater filter system shall be capable of
treating 100% of the required treatment flow at full
sediment load conditions.
B. The stormwater filter system's cartridges shall have
no moving parts.
C. The stormwater treatment unit shall be designed to
remove a minimum of 80% of suspended solids,
60% of total phosphorus, 50% of turbidity, 40% of total
copper, and 40% of total zinc. All filter designs shall
comply with local regulations.
D. The stormwater filtration system shall not have any
components that leach nitrates, phosphates or metals.
E. The stormwater filtration cartridge shall be equipped
with a hydrodynamic backwash mechanism to extend
the filter's life and optimize its performance.
F. The stormwater filtration system's cartridges shall have
a treated sediment capacity for 80% TSS removal
between 150-350 Ibs (68-159 kg).
When BayFilter is initially installed, we recommend
that an inspection be performed on the system in the
first six (6) months. After that, the inspection cycle
typically falls into an annual pattern given normal
storm occurrence and actual solids loads.
When BayFilter exhibits flows below design levels,
the system should be inspected and maintained as
soon as practical. If flow monitoring is not available,
BayFilter cartridges should be replaced when sediment
levels are at or above the top of the manifold.

ADS "Terms and Conditions of Sale" are available on the ADS website, www.ads-pipe.com
The ADS logo and the Green Stripe are registered trademarks of Advanced Drainage Systems, Inc.
BayFilter' is a registered trademark of BaySaverTechnologies, Inc.
© 2018 Advanced Drainage Systems, Inc. #10951 01/18 MH
'A14 ULAJO
THE MOST ADVANCED NAME IN WATER MANAGEMENT SOLUTIONSTM LLLLL�'
1-800-821-6710 www.ads-pipe.com
1-800-229-7283 www.baysaver.com

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THE ISOLATOR° ROW PLUS
INTRODUCTION
An important component of any Stormwater Pollution Prevention Plan
is inspection and maintenance. The StormTech Isolator Row PLUS is
a technique to inexpensively enhance Total Suspended Solids (TSS)
and Total Phosphorus (TP) removal with easy access for inspection and
maintenance.
THE ISOLATOR ROW PLUS
The Isolator Row PLUS is a row of StormTech chambers, either SC-160,
SC-310, SC-310-3, SC-740, DC-780, MC-3500 or MC-4500 models, that is
surrounded with filter fabric and connected to a closely located manhole
for easy access. The fabric -wrapped chambers provide for settling and
filtration of sediment as storm water rises in the Isolator Row PLUS and
ultimately passes through the filter fabric. The open bottom chambers
and perforated sidewalls (SC-310, SC- 310-3 and SC-740 models) allow
storm water to flow both vertically and horizontally out of the chambers.
Sediments are captured in the Isolator Row PLUS protecting the storage
areas of the adjacent stone and chambers from sediment accumulation.
ADS geotextile fabric is placed between the stone and the Isolator Row
PLUS chambers. The woven geotextile provides a media for stormwater
filtration, a durable surface for maintenance, prevents scour of the
underlying stone and remains intact during high pressure jetting. A non-
woven fabric is placed over the chambers to provide a filter media for flows
passing through the perforations in the sidewall of the chamber. The non-
woven fabric is not required over the SC-160, DC-780, MC-3500 or MC-
4500 models as these chambers do not have perforated side walls.
The Isolator Row PLUS is designed to capture the "first flush" runoff and
offers the versatility to be sized on a volume basis or a flow -rate basis. An
upstream manhole not only provides access to the Isolator Row PLUS but
includes a high/low concept such that stormwater flow rates or volumes
that exceed the capacity of the Isolator Row PLUS bypass through a
manifold to the other chambers. This is achieved with either an elevated
bypass manifold or a high -flow weir. This creates a differential between
the Isolator Row PLUS row of chambers and the manifold to the rest of the
system, thus allowing for settlement time in the Isolator Row PLUS. After
Stormwater flows through the Isolator Row PLUS and into the rest of the
StormTech chamber system it is either exfiltrated into the soils below or
passed at a controlled rate through an outlet manifold and outlet control
structure.
The Isolator Row FLAMPTm (patent pending) is a flared end ramp apparatus
that is attached to the inlet pipe on the inside of the chamber end cap. The
FLAMP provides a smooth transition from pipe invert to fabric bottom. It
is configured to improve chamber function performance overtime by
enhancing outflow of solid debris that would otherwise collect at an end
of the chamber. It also serves to improve the fluid and solid flow into the
access pipe during maintenance and cleaning and to guide cleaning and
inspection equipment back into the inlet pipe when complete.
The Isolator Row PLUS may be part of a treatment train system. The design
of the treatment train and selection of pretreatment devices by the design
engineer is often driven by regulatory requirements. Whether pretreatment
is used or not, the Isolator Row PLUS is recommended by StormTech as an
effective means to minimize maintenance requirements and maintenance
costs.
Note: See the StormTech Design Manual for detailed information on designing
inlets for a StormTech system, including the Isolator Row PLUS.
Looking down the Isolator Row PLUS from the
manhole opening, ADS PLUS Fabric is shown
between the chamber and stone base.
StormTech Isolator Row PLUS
with Overflow Spillway (not to
scale)

ISOLATOR ROW PLUS
INSPECTION/MAINTENANCE
INSPECTION
The frequency of inspection and maintenance varies by location. A
routine inspection schedule needs to be established for each individual
location based upon site specific variables. The type of land use (i.e.
industrial, commercial, residential), anticipated pollutant load, percent
imperviousness, climate, etc. all play a critical role in determining the
actual frequency of inspection and maintenance practices.
At a minimum, StormTech recommends annual inspections. Initially, the
Isolator Row PLUS should be inspected every 6 months for the first year
of operation. For subsequent years, the inspection should be adjusted
based upon previous observation of sediment deposition.
The Isolator Row PLUS incorporates a combination of standard manhole(s) and strategically located inspection
ports (as needed). The inspection ports allow for easy access to the system from the surface, eliminating the
need to perform a confined space entry for inspection purposes.
If upon visual inspection it is found that sediment has accumulated, a stadia rod should be inserted to determine
the depth of sediment. When the average depth of sediment exceeds 3 inches throughout the length of the
Isolator Row PLUS, clean -out should be performed.
MAINTENANCE
The Isolator Row PLUS was designed to reduce the cost of periodic maintenance. By "isolating" sediments to
just one row, costs are dramatically reduced by eliminating the need to clean out each row of the entire storage
bed. If inspection indicates the potential need for maintenance, access is provided via a manhole(s) located on
the end(s) of the row for cleanout. If entry into the manhole is required, please follow local and OSHA rules for a
confined space entries.
Maintenance is accomplished with the JetVac process. The JetVac process utilizes a high pressure water nozzle
to propel itself down the Isolator Row PLUS while scouring and suspending sediments. As the nozzle is retrieved,
the captured pollutants are flushed back into the manhole for vacuuming. Most sewer and pipe maintenance
companies have vacuum/JetVac combination vehicles. Selection of an appropriate JetVac nozzle will improve
maintenance efficiency. Fixed nozzles designed for culverts or large diameter pipe cleaning are preferable. Rear
facing jets with an effective spread of at least 45" are best. StormTech recommends a maximum nozzle pressure
of 2000 psi be utilized during cleaning. Most JetVac reels have 400 feet of hose allowing maintenance of an
Isolator Row PLUS up to 50 chambers long. The JetVac process shall only be performed on StormTech Isolator
Row PLUS that have ADS PLUS Fabric (as specified by StormTech) over their angular base stone.
StormTech Isolator Row PLUS (not to scale)
Note: Non -woven fabric is only required over the inlet pipe connection into the end cap for SC-160LP, DC-780, MC-3500 and MC-4500 chamber
models and is not required over the entire Isolator Row PLUS.
BAGKF,LL MATERL
COVER ENTIRE ISOLATOR ROW WITH ADS
DEOSYNTHETICS SWT 4044MEN DEOTE%TILE
W (2A m) MIN WIDE
ELEVATED BYPASS MMIFOLD
SUMP DEPTH TED BY CATCH BASIN
SITE DESIGN ENGINEER OR MANHOLE
[24' [BBB ..) MIN RECOMMENDED[
SC-74 CHAMBEl
24' ISODm.. HDPE ACCESS PIPE REQUIRED
USE FACTORY PREFABRICATED END CAP
WITH FLAMIP PART N; $CT4pEPE74BR
$G746 END CAP
JEOTVXTI l E 9ETWEEN
FOLINDAT ION STONE ANO CHAMBERS
S 0.5 m) MIN WIDE CONTINUOUS FIERIC WITHOUT SEAMS

ISOLATOR ROW PLUS STEP BY STEP MAINTENANCE PROCEDURES
STEP 1
Inspect Isolator Row PLUS for sediment.
A) Inspection ports (if present)
i. Remove lid from floor box frame
ii. Remove cap from inspection riser
iii. Using a flashlight and stadia rod,measure depth of sediment and record results on maintenance log.
iv. If sediment is at or above 3 inch depth, proceed to Step 2. If not, proceed to Step 3.
B) All Isolator Row PLUS
i. Remove cover from manhole at upstream end of Isolator Row PLUS
ii. Using a flashlight, inspect down Isolator Row PLUS through outlet pipe
1. Mirrors on poles or cameras may be used to avoid a confined space entry
2. Follow OSHA regulations for confined space entry if entering manhole
iii. If sediment is at or above the lower row of sidewall holes (approximately 3 inches), proceed to Step 2.
If not, proceed to Step 3.
STEP 2
Clean out Isolator Row PLUS using the JetVac process.
A) A fixed floor cleaning nozzle with rear facing nozzle spread of 45 inches or more is preferable
B) Apply multiple passes of JetVac until backflush water is clean
C) Vacuum manhole sump as required
STEP 3
Replace all caps, lids and covers, record observations and actions.
STEP 4
Inspect & clean catch basins and manholes upstream of the StormTech system.
SAMPLE MAINTENANCE LOG
3/16111 6.3 fE KOKe New LKAolLaELoK, FLxed poLKE Ls C1 frame aE DOM
grade
V24/11 6.2 0.1 f E Some 9KE f eLE SM
6/20/13 S.Fr 0.6 f E Mucky feel. debrLs vULble LK makkole aKcl EK NV
IsoLokor tow ?LOS, maCkEekaHce due
7/7/13 6.3 f E o 54SEerA , jeRed w►od vacuumed DW

STORMTECH DC-780 CHAMBER
Designed to meet the most stringent industry performance standards for
structural integrity while providing designers with a cost-effective method
valuable land and protect water resources. The StormTech system is desi€
primarily to be used under parking lots, thus maximizing land usage for prl
(commercial) and public applications.
, thus enhancing the performance
extending the service life of these practices.
• 12' (3.6 m) Deep Cover Applications
• Designed in accordance with ASTM F 2787 and produced to meet
the ASTM 2418 product standard.
• AASHTO safety factors provided for AASHTO Design Truck
(1-120 and deep cover conditions.)
STORMTECH DC-780 CHAMBER
(not to scale)
Nominal Chamber Specifications
Size (LxWxH)
85.4" x 51.0" x 30.0"
2,170 mm x 1,295 mm x 762 mm
Chamber Storage
46.2 ft3 (1.30 m3)
Min. Installed Storage*
78.4 ft3 (2.20 m3)
Weight
80.0 Ibs (36.3 kg)
Shipping
24 chambers/pallet
60 end caps/pallet
12 pallets/truck
*Assumes 9" (230 mm) stone below, 6" (150
mm) row spacing and 40%stone porosity.
EMBEDMENT STONE SHALL BE A CLEAN, CRUSHED AND ANGULAR
STONE WITH AN AASHTO M43 DESIGNATION BETWEEN #3 AND #57
CHAMBERS SHALL MEET ASTM F2418 "STANDARD
SPECIFICATION FOR POLVPROPLENE (PP) CORRUGATED
WALL STORMWATER COLLECTION CHAMBERS'.
ADS GEOSVTHETICS 601T NON -WOVEN
GEOTEXTILE ALL AROUND CLEAN, CRUSHED,
ANGULAR EMBEDMENT STONE
90.7" (2304 mm)
ACTUAL LENGTH
30.0"
(762 mm)
51.0"
(1295 mm)
GRANULAR WELL -GRADED SOIUAGGREGATE MIXTURES, 135%
FINES, COMPACT IN s" (159 mm) MAX LIFTS TO 95%PROCTOR
DENSITY. SEE THE TABLE OF ACCEPTABLE FILL MATERIALS.
CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2787
'STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC
CORRUGATED WALL STORMWATER COLLECTION CHAMBERS'.
PAVEMENT LAYER(DESIGNED
BY SITE DESIGN ENGINEER)
PERIMETERSTONE
EXCAVATION L
(CAN BE SLOPED
OR VERTICAL) III •�
-I�.rI I— - — DEPTH OF STONE TO BE DETERMINED
— III -III Ili11 IL �L II T}�Ll�it Lfll�iL4 �I �I—I�I'[Ii L BY SITE DESIG N ENG INEER 9-(239m)MIN
Ir Ill III
12" (399 mm) MIN S1]40/DC-]89
END CAP
9 1205 mm) "(399 mm)
SITE DESIGN ENGINEER IS RESPONSIBLE FOR (159 mm) MIN 51-(12 TVP
THE ENSURING THE REQUIRED BEARING
CAPACITY OF SUBGRADE SOILS
'MINIMUM COVER TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR, INCREASE COVER TO 24- (s99 mm).

DC-780 CUMULATIVE STORAGE VOLUMES PER CHAMBER
Assumes 40% Stone Porosity. Calculations are Based
Upon a 9" (230 mm) Stone Base Under Chambers.
Depth
Inches (mm)
45 (1,143)
StorageSystem
46.27 (1.310)
Storage
78.47 (2.222)
44 (1,118)
46.27 (1.310)
77.34 (2.190)
43 (1,092)
Stone 46.27
(1.310)
76.21 (2.158)
42 (1,067)
Cover 46.27
(1.310)
75.09 (2.126)
41 (1,041)
46.27
(1.310)
73.96 (2.094)
40 (1,016)
46.27
(1.310)
72.83 (2.062)
39 (991)
46.27
(1.310)
71.71 (2.030)
38 (965)
46.21 (1.309)
70.54 (1.998)
37 (940)
46.04 (1.304)
69.32 (1.963)
36 (914)
45.76 (1.296)
68.02 (1.926)
35 (889)
45.15 (1.278)
66.53 (1.884)
34 (864)
44.34 (1.255)
64.91 (1.838)
33 (838)
43.38 (1.228)
63.21 (1.790)
32 (813)
42.29 (1.198)
61.43 (1.740)
31 (787)
41.11 (1.164)
59.59 (1.688)
30 (762)
39.83 (1.128)
57.70 (1.634)
29 (737)
38.47 (1.089)
55.76 (1.579)
28 (711)
37.01 (1.048)
53.76 (1.522)
27 (686)
35.49 (1.005)
51.72 (1.464)
26 (660)
33.90 (0.960)
49.63 (1.405)
25 (635)
32.24 (0.913)
47.52 (1.346)
24 (610)
30.54 (0.865)
45.36 (1.285)
23 (584)
28.77 (0.815)
43.18 (1.223)
22 (559)
26.96 (0.763)
40.97 (1.160)
21 (533)
25.10 (0.711)
38.72 (1.096)
20 (508)
23.19 (0.657)
36.45 (1.032)
19 (483)
21.25 (0.602)
34.16 (0.967)
18 (457)
19.26 (0.545)
31.84 (0.902)
17 (432)
17.24 (0.488)
29.50 (0.835)
16 (406)
15.19 (0.430)
27.14 (0.769)
15 (381)
13.10 (0.371)
24.76 (0.701)
14 (356)
10.98 (0.311)
22.36 (0.633)
13 (330)
8.83 (0.250)
19.95 (0.565)
12 (305)
6.66 (0.189)
17.52 (0.496)
11 (279)
4.46 (0.126)
15.07 (0.427)
10 (254)
2.24 (0.064)
12.61(0-
Depth of Water in
Inches (mm)
9 (229)
Cumulative Chamber
StorageSystem
o(o)
Total System Cumulative
Storage
10.14 (0.287)
8 (203)
o(o)
9.01 (0.255)
7 (178)
o(o)
7.89 (0.223)
6 (152)
Stone
Foundation o(o)
o(o)
6.76 (0.191)
5 (127)
5.63 (0.160)
4 (102)
o(o)
4.51 (0.128)
3 (76)
o(o) 3.38 (0.096)
o(o) 2.25 (0.064)
0 (0) 1.13 (0.032)
2 (51)
1 (25)
Note: Add 1.13 ft3 (0.032 ml) of Storage for Each Additional Inch (25 mm) of Stone
Foundation.
STORAGEVOLUME PER CHAMBER FT3 (M3)
�Mamber and Stone 1W
�•Foundation Depth
I II 11 11I
DC-780 Cham"7.4 1 78.4 (2.2) 1 81.8 (2.3)
Note: Assumes 40% porosity for the stone, the bare chamber volume, 6"
(150 mm) of stone above, and 6" (150 mm) row spacing.
AMOUNT OFSTONE PER CHAMBER
FDC 1 �
-780 Chamber 4.2 (3.0) 4.7 (3.3) "(3.9)
KILOGRAMSMETRIC I mm 300 mm 450 mm
DC-780 Chamber 3,810 (2.3) 1 4,264 (2.5) 5,080 (3.0)
Note: Assumes 9" (150 mm) of stone above, and between chambers.
VOLUME EXCAVATION PER CHAMBER YD3 (M3
1111' stone Foundation 1
I II I
DC-780 Chamber 5.9 (4.5) 6.3 (4.8) 6.9 (5.3)
Note: Assumes 6" (150 mm) separation between chamber rows and 18" (450
mm) of cover. The volume of excavation will vary as depth of cover increases.
Working on a project?
DDS i G N Visit us at www.stormtech.com
TOO and utilize the StormTech Design Tool
For more information on the StormTech DC-780 Chamber and other ADS products, please contact our Customer Service Representatives at 1-800-821.6710

ACCEPTABLE FILL MATERIALS: STORMTECH DC-780 CHAMBER SYSTEMS
AASHTO MATERIAL
MATERIAL LOCATION
DESCRIPTION
COMPACTION / DENSITY REQUIREMENT
CLASSIFICATIONS
FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS FROM THE
PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED
D
TOP OF THE'C' LAYER TO THE BOTTOM OF FLEXIBLE
ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS.
N/A
INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND
PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT
CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.
PREPARATION REQUIREMENTS.
PAVEMENT SUBBASE MAY BE PART OF THE'D' LAYER
AASHTO M145'
BEGIN COMPACTIONS AFTER 12" (300 mm) OF MATERIAL OVER
GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR
A-1, A-24, A-3
THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN
INITIAL FILL: FILL MATERIAL FOR LAYER'C' STARTS FROM THE
PROCESSED AGGREGATE.
6" (150 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
C
TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 18" (450 mm)
OR
WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR
ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS
PROCESSED AGGREGATE MATERIALS. ROLLER GROSS
SUBBASE MAY BE A PART OF THE'C' LAYER.
LAYER.
AASHTO M43
VEHICLE WEIGHT NOT TO EXCEED 12,000 Ibs (53 kN). DYNAMIC
3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10
FORCE NOT TO EXCEED 20,000 Ibs (89 kN).
EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS
AASHTO M43'
B
FROM THE FOUNDATION STONE ('A' LAYER) TO THE'C' LAYER
CLEAN, CRUSHED, ANGULAR STONE
3, 357, 4, 467, 5, 56, 57
NO COMPACTION REQUIRED.
ABOVE.
A
FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE
CLEAN, CRUSHED, ANGULAR STONE
AASHTO M43'
PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE23
SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER.
3, 357, 4, 467, 5, 56, 57
PLEASE NOTE:
1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED, ANGULAR NO. 4 (AASHTO M43) STONE".
2. STORMTECH COMPACTION REQUIREMENTS ARE MET FORA' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9" (230 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR.
3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR
COMPACTION REQUIREMENTS.
4. ONCE LAYER'C' IS PLACED. ANY SOIL/MATERIAL CAN BE PLACED IN LAYER'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR'D' AT THE SITE DESIGN ENGINEER'S DISCRETION.
PERIMETER STONE
(SEE NOTE 4)
ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
1
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
12" (300 1
SUBGRADE SOILS
(SEE NOTE 3)
6"
(150 mm) MIN
NOTES:
1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
2. DC-780 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
3. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH
CONSIDERATION FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS.
4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
5. REQUIREMENTS FOR HANDLING AND INSTALLATION:
• TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS.
• TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 2".
• TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 550
LBS/IN/IN. AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW
COLORS.
12'
(3.7 m)
MAX
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 9" (230 mm) MIN
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DC-780 TECHNICAL SPECIFICATION
NTS
r- 90.7" (2304 mm) ACTUAL LENGTH I
r85,4" (2169 mm) INSTALLED LENGTH
a BUILD ROW IN THIS DIRECTION
OVERLAP NEXT CHAMBER HERE
(OVER SMALL CORRUGATION)
ACCEPTS 4" (100 mm) SCH 40 PVC PIPE FOR INSPECTION
PORT. FOR PIPE SIZES LARGER THAN 4" (100 mm) UP TO
10" (250 mm) USE INSERTA TEE CONNECTION CENTERED
ON A CHAMBER CREST CORRUGATION
START END
NOMINAL CHAMBER SPECIFICATIONS
SIZE (W X H X INSTALLED LENGTH) 51.0" X 30.0" X 85.4" (1295 mm X 762 mm X 2169 mm)
CHAMBER STORAGE 46.2 CUBIC FEET (1.30 ml)
MINIMUM INSTALLED STORAGE` 78.4 CUBIC FEET (2.20 ml)
WEIGHT 75.0 lbs. (33.6 kg) 'I
`ASSUMES 6" (152 mm) STONE ABOVE, 9" (229 mm) BELOW,
AND 6" (152 mm) BETWEEN CHAMBERS
JB
1
STUBS AT BOTTOM OF END CAP FOR PART NUMBERS ENDING WITH "B" C
STUBS AT TOP OF END CAP FOR PART NUMBERS ENDING WITH "T"
PART #
STUB
A
B
C
SC740EPE06T / SC740EPE06TPC
6" (150 mm)
10.9" (277 mm)
18.5" (470 mm)
---
SC740EPE06B / SC740EPE06BPC
---
0.5" (13 mm)
SC740EPE08T / SC740EPE08TPC
8" (200 mm)
12.2" (310 mm)
16.5" (419 mm)
---
SC740EPE08B / SC740EPE08BPC
---
0.6" (15 mm)
SC740EPE10T / SC740EPE10TPC
10" (250 mm)
13.4" (340 mm)
14.5" (368 mm)
---
SC740EPE10B / SC740EPE10BPC
---
0.7" (18 mm)
SC740EPE12T / SC740EPE12TPC
12" (300 mm)
14.7" (373 mm)
12.5" (318 mm)
---
SC740EPE12B / SC740EPE12BPC
---
1.2" (30 mm)
SC740EPE15T / SC740EPE15TPC
15" (375 mm)
18.4" (467 mm)
9.0" (229 mm)
SC740EPE15B / SC740EPE15BPC
---
1.3" (33 mm)
SC740EPE18T/ SC740EPE18TPC
18" (450 mm)
19.7" (500 mm)
5.0" (127 mm)
---
SC740EPE18B / SC740EPE18BPC
---
1.6" (41 mm)
SC740EPE24B`
24" (600 mm)
18.5" (470 mm)
---
0.1" (3 mm)
ALL STUBS, EXCEPT FOR THE SC740EPE24B ARE PLACED AT BOTTOM OF END CAP SUCH THAT THE OUTSIDE DIAMETER OF
THE STUB IS FLUSH WITH THE BOTTOM OF THE END CAP. FOR ADDITIONAL INFORMATION CONTACT STORMTECH AT
1-888-892-2694.
FOR THE SC740EPE24B THE 24" (600 mm) STUB LIES BELOW THE BOTTOM OF THE END CAP APPROXIMATELY 1.75" (44 mm).
BACKFILL MATERIAL SHOULD BE REMOVED FROM BELOW THE N-12 STUB SO THAT THE FITTING SITS LEVEL.
NOTE: ALL DIMENSIONS ARE NOMINAL

OPTIONAL: COVER ENTIRE ISOLATOR ROW PLUS WITH ADS
GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE
8' (2.4 m) MIN WIDE
STORMTECH HIGHLY RECOMMENDS
FLEXSTORM INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
ELEVATED BYPASS MANIFOLD
SUMP DEPTH TBD BY CATCH BASIN
SITE DESIGN ENGINEER OR MANHOLE
(24" [600 mm] MIN RECOMMENDED) j �
DC-780 CHAMBER
24" (600 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PRE -FABRICATED END CAP
WITH FLAMP PART #: SC740EPE24BR
DC-780 ISOLATOR ROW PLUS DETAIL
NITS
INSPECTION & MAINTENANCE
STEP 1) INSPECT ISOLATOR ROW PLUS FOR SEDIMENT
A. INSPECTION PORTS (IF PRESENT)
A. 1. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN
A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED
A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG
A.4. LOWER A CAMERA INTO ISOLATOR ROW PLUS FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL)
A.5. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
B. ALL ISOLATOR PLUS ROWS
B. 1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW PLUS
B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW PLUS THROUGH OUTLET PIPE
i) MIRRORS ON POLES OR CAMERAS MAYBE USED TO AVOID A CONFINED SPACE ENTRY
ii) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE
B.3. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
STEP 2) CLEAN OUT ISOLATOR ROW PLUS USING THE JETVAC PROCESS
A. A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED
B. APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN
C. VACUUM STRUCTURE SUMP AS REQUIRED
STEP 3) REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS.
STEP 4) INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM.
AInTPQ
1. INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS
OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS.
2. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY.
CONCRETE COL
PAVEMEN
CONCRETE SLAB
6" (150 mm) MIN THICKNESS
STORMTECH CHAMBER
DC-780/SC-740 END CAP
EOTEXTILE BETWEEN
FOUNDATION STONE AND CHAMBERS
5' (1.5 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
12" (300 mm) MIN WIDTH
r
�NCRETE COLLAR NOT REQUIRED
)R UNPAVED APPLICATIONS
8" NYLOPLAST INSPECTION PORT
BODY (PART# 2708AG41PKIT) OR
TRAFFIC RATED BOX W/SOLID
LOCKING COVER
4" (100 mm)
SDR 35 PIPE
4" (100 mm) INSERTA TEE
TO BE CENTERED ON
CORRUGATION CREST
NOTE:
INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER CORRUGATION CREST.
4" PVC INSPECTION PORT DETAIL
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OL.UASSIS N p E p
SlcwmTech- �Z
FOR STORMTECH �'`
INSTRUCTIONS,
DOWNLOAD THE
INSTALLATION APP Le L' .
StormTech Construction Guide
REQUIRED MATERIALS AND EQUIPMENT LIST
• Acceptable fill materials per Table 1
• ADS Plus and non -woven geotextile fabrics
IMPORTANT NOTES:
46, ,
Stormffiech@
An utt�a company
StormTech solid end caps and pre -cored end caps
StormTech chambers
StormTech manifolds and fittings
A. This installation guide provides the minimum requirements for proper installation of chambers. Non -adherence to this guide may result in damage to chambers during
installation. Replacement of damaged chambers during or after backfilling is costly and very time consuming. It is recommended that all installers are familiar with this
guide, and that the contractor inspects the chambers for distortion, damage and joint integrity as work progresses.
B. Use of a dozer to push embedment stone between the rows of chambers may cause damage to chambers and is not an acceptable backf ill method. Any chambers
damaged by using the "dump and push" method are not covered under the StormTech standard warranty.
C. Care should be taken in the handling of chambers and end caps. Avoid dropping, prying or excessive force on chambers during removal from pallet and initial placement.
Requirement4 r System Installation,
Excavate bed and prepare subgrade per
engineer's plans.
Place non -woven geotextile over prepared soils
and up excavation walls. Install underdrains if
required.
Place clean, crushed, angular stone foundation
6" (150 mm) min. Compact to achieve a flat
surface.

Manifold, Scour Fabric and Chamber Assembly
Install manifolds and lay out ADS PLUS fabric at
inlet rows [min. 12.5 ft (3.8 m)] at each inlet end
cap. Place a continuous piece along entire length
of Isolator° PLUS Row(s).
Attaching the End Caps
Lift the end of the chamber a few inches off
the ground. With the curved face of the end
cap facing outward, place the end cap into the
chamber's end corrugation.
Align the first chamber and end cap of each
row with inlet pipes. Contractor may choose to
postpone stone placement around end chambers
and leave ends of rows open for easy inspection
of chambers during the backfill process.
Prefabricated End Caps
24" (600 mm) inlets are the maximum size that can
fit into a SC-740/DC-780 end cap and must be
prefabricated with a 24" (600 mm) pipe stub. SC-310
chambers with a 12" (300 mm) inlet pipe must use a
prefabricated end cap with a 12" (300 mm) pipe stub.
When used on an Isolator Row PLUS, these end caps
will contain a welded FLAMP (flared end ramp) that
will lay on top of the ADS PLUS fabric (shown above)
Continue installing chambers by overlapping chamber
end corrugations. Chamber joints are labeled "Lower
Joint — Overlap Here" and "Build this direction —
Upper Joint" Be sure that the chamber placement
does not exceed the reach of the construction
equipment used to place the stone. Maintain
minimum 6" (150 mm) spacing between rows.
Isolator Row PLUS
Place a continuous layer of ADS PLUS fabric between
the foundation stone and the Isolator Row PLUS
chambers, making sure the fabric lays flat and extends
the entire width of the chamber feet. Drape a strip of
ADS non -woven geotextile over the row of chambers
(not required over DC-780). This is the same type
of non -woven geotextile used as a separation layer
around the angular stone of the StormTech system. 2

Initial Anchoring of Chambers - Embedment Stone
Initial embedment shall be spotted along the centerline of the chamber evenly
anchoring the lower portion of the chamber. This is best accomplished with a
stone conveyor or excavator reaching along the row.
Backfill of Chambers - Embedment Stone
UNEVEN BACKFILL
EVEN BACKFILL
Backfill chambers evenly. Stone column height should never differ by more
than 12" (300 mm) between adjacent chamber rows or between chamber
rows and perimeter.
No equipment shall be operated on the bed at this stage of the installation.
Excavators must be located off the bed. Dump trucks shall not dump stone
directly on to the bed. Dozers or loaders are not allowed on the bed at this
time.
PERIMETER NOT BACKFILLED
PERIMETER FULLY BACKFILLED
Perimeter stone must be brought up evenly with chamber rows. Perimeter
must be fully backfilled, with stone extended horizontally to the excavation
wall.
Call StormTech at 888.892.2694 for technical and product information or visit www.stormtech.com 3

Backfill - Embedment Stone & Cover Stone
Continue evenly back -filling between rows
and around perimeter until embedment
stone reaches tops of chambers.
Perimeter stone must extend horizontally
to the excavation wall for both straight or
sloped sidewalls. Only after chambers
have been backfilled to top of
chamber and with a minimum 6"
(150 mm) of cover stone on top of
chambers can small dozers be used
over the chambers for backfilling
remaining cover stone.
Inserta Tee Detail
CONVEYANCE
PIPE MATERIAL
MAY VARY (PVC,
HOPE, ETC.)
L
INSERTA TEE ­111
CONNECTION ��
(X)
PLACE ADS PLUS WOVEN
GEOTEXTILE (CENTERED ON
INSERTA-TEE INLET) OVER BEDDING
STONE FOR SCOUR PROTECTION AT
SIDE INLET CONNECTIONS,
GEOTEXTILE MUST EXTEND 6"
(150 mm) PAST CHAMBER FOOT
NOTE:
PART NUMBERS WILL VARY BASED ON
INLET PIPE MATERIALS. CONTACT
STORMTECH FOR MORE INFORMATION.
Small dozers and skid loaders may be
used to finish grading stone back -fill in
accordance with ground pressure limits in
Table 2. They must push material parallel
to rows only. Never push perpendicular
to rows. StormTech recommends that
the contractor inspect chambers before
placing final back -fill. Any chambers
damaged by construction shall be
removed and replaced.
SECTION A -A
DO NOT INSTALL
INSERTA-TEE AT
CHAMBERJOINTS
A
A
INSERTA TEE TO BE
INSTALLED, CENTERED
OVER CORRUGATION
SIDE VIEW
CHAMBER
MAX DIAMETER OF
INSERTATEE
HEIGHT FROM BASE OF
CHAMBER(X)
SC-310
6" (150 mm)
4" (100 mm)
SC-740
10" (250 mm)
4" (100 mm)
DC-780
10" (250 mm)
4" (100 mm)
INSERTA TEE FITTINGS AVAILABLE FOR SDR 26, SDR 36, SCH 40 IPS
GASKETED & SOLVENT W ELD, N-12, HP STORM, C-900 OR DUCTILE IRON.
Final Backfill of Chambers — Fill Material
Install non -woven geotextile over stone. Geotextile must overlap 24" (600 mm)
min. where edges meet. Compact each lift of back -fill as specified in the site
design engineer's drawings. Roller travel parallel with rows.
StormTech Isolator Row PLUS Detail
COVER ENTIRE ISOLATOR ROW PLUS WITH ADS
GEOSYNTHETICS 601 T NON -WOVEN GEOTEXTILE
SC-740 - 8' (2.4 m) MIN WIDE STRIP
SC-310 - 5' (1.5 m) MIN WIDE STRIP
CATCH BASIN
OR MANHOLE
i
SUMP DEPTH BY
SITE DESIGN
ENGINEER
NOTE: NON -WOVEN GEOTEXTILE OVER
DC-780 CHAMBERS IS NOT REQUIRED.
CHAMBER (SC-740 SHOWN)
SC-740 & DC-780-24- (600 MM) HOPE ACCESS - ONE LAYER OF ADSPLUS125 WOVEN
PIPE REQUIRED USE FACTORY GEOTEXTILE BETWEEN FOUNDATION STONE
PREFABRICATED END CAP WITH FLAMP AND CHAMBERS
PART #: SC740EPE24BR SC-740 & DC-780- 5(1.5 m) MIN WIDE STRIPS
SC-310- 12"(300mm) HOPE ACCESS PIPE SC-310- 4'(12m) MIN WIDE STRIPS
USE FACTORY PRE -FABRICATED END CAP CONTINUOUS FABRIC WITHOUT SEAMS
PART#: SC310EPE12B
4

Table 1-Acceptable Fill Materials
Material Location
Description
AASHTO M43
Compaction/Density
Designation'
Requirement
(I)Final Fill: RII Material for layer'D'
Any soil/rock materials, native soils
WA
Prepare per site design engineer's plans. Paved
starts from the top of the'C' layer to the
or per engineer's plans. Check
installations may have stringent material and prepara-
bottom of flexible pavement or unpaved
plans for pavement subgrade
tion requirements.
finished grade above. Note that the pave-
requirements.
ment subbase may be part of the'D' layer.
©Initial Fill: RII Material for layer'C'
Granular well -graded soil/
AASHTO M45
Begin compacton after min.12" (300 mm) of mate -
starts from the top of the embedment
aggregate mixtures, <35%fines
A-1, A-2-4, A-3
rial over the chambers is reached. Compact additional
stone ('B' layer) to 18" (450 mm) above
or processed aggregate. Most
or
layers in 6" (150 mm) max. lifts to a min. 95% Proctor
the top of the chamber. Note that pave-
pavement subbase materials can
AASHTO M431
density for well -graded material and 95% relative
ment subbase may be part of the'C' layer
be used in lieu of this layer.
3, 357, 4, 467, 5, 56, 57, 6,
density for processed aggregate materials. Roller
67, 68, 7, 78, 8, 89, 9,10
gross vehicle weight not to exceed 12,000 Ibs (53
IkN). Dynamic force not to exceed 20,000 Ibs (89 kN)
®Embedment Stone: Embedment
Clean, crushed, angular stone
AASHTO M431
No compaction required.
Stone surrounding chambers from the
3, 357, 4, 467, 5, 56, 57
foundation stone to the'C' layer above.
(A)Foundation Stone: Foundation Stone
Clean, crushed, angular stone,
AASHTO M431
Place and compact in 6" (150 mm) lifts using two full
below the chambers from the subgrade up
3, 357, 4, 467, 5, 56, 57
coverages with a vibratory compactorz3
to the foot (bottom) of the chamber.
PLEASE NOTE:
1. The listed AASHTO designations are for gradations only. The stone must also be clean, crushed, angular. For
example, a specification for #4 stone would state: "clean, crushed, angular no. 4 (AASHTO M43) stone
2. StormTech compaction requirements are met for A' location materials when placed and compacted in 6" (150 mm)
(max) lifts using two full coverages with a vibratory compactor.
3. Where infiltration surfaces may be comprised by compaction, for standard installations and standard design load
conditions, a flat surface may be achieved by raking or dragging without compaction equipment. For special load
designs, contact Storm Tech for compaction requirements.
Figure 2 - Fill Material Locations
ADS GEOSYNTHETICS 601 T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A& B LAYERS
PERIMETER STONE
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL)
12" (300
Figure 1- Inspection Port Detail
I
CONCRETE COI
PAVEMEN
CONCRETE SLAB
6" (150 mm) MIN THICKNESS
STORMTECH CHAMBER
12"(300 mm)MIN WIDTH
CONCRETE COLLAR NOT REQUIRED
7R UNPAVED APPLICATIONS
8" NYLOPLAST INSPECTION PORT
BODY (PART# 2708AG41PKIT) OR
TRAFFIC RATED BOX W/SOLID
LOCKING COVER
4" (100 mm)
SDR 35 PIPE
4" (100 mm) INSERTA TEE
TO BE CENTERED ON
CORRUGATION CREST
NOTE:
INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER CORRUGATION CREST.
PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
SC-740 & DC-780 -51" (1295 mm)
SC-310 - 34' (865 mm)
8'
18" (2.4 m)
(450 mm) MIN' MAX
SC-740 & DC-780 - 30" (760 mm)
SC-310 - 16" (406 mm)
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER
SC-740 & SC-310 - 6" (150 mm) MIN
DC-780 - 9" (230 mm) MIN
5

NOTES.
Table 2 - Maximum Allowable Construction Vehicle Loads5
1. 36" (900 mm) of stabilized cover materials over the chambers is
required for full dump truck travel and dumping.
2. During paving operations, dump truck axle loads on 18" (450
mm) of cover maybe necessary. Precautions should be taken to
avoid rutting of the road base layer, to ensure that compaction
requirements have been met, and that a minimum of 18" (450
mm) of cover exists over the chambers. Contact StormTech for
additional guidance on allowable axle loads during paving.
3. Ground pressure for track dozers is the vehicle operating weight
divided by total ground contact area for both tracks. Excavators
will exert higher ground pressures based on loaded bucket weight
and boom extension.
4. Mini -excavators (< 8,000/bs/3,628 kg) can be used with at least
12" (300 mm) of stone over the chambers and are limited by the
maximum ground pressures in Table 2 based on a full bucket at
maximum boom extension.
5. Storage of materials such as construction materials, equipment,
spoils, etc. should not be located over the StormTech system. The
use of equipment over the StormTech system not covered in Table
2 (ex. soil mixing equipment, cranes, etc) is limited. Please contact
StormTech for more information.
6. Allowable track loads based on vehicle travel only. Excavators
shall not operate on chamber beds until the total backfill reaches
3 feet (900 mm) over the entire bed.
ADS "Terms and Conditions of Sale" are available on the ADS website,
www.ads-pipe.com. Advanced Drainage Systems, the ADS logo, and the green
stripe are registered trademarks of Advanced Drainage Systems, Inc.
StormTech® and the Isolator® Row PLUS are registered trademarks of Storm -
Tech, Inc
#11010 09/20 CS
©2020 Advanced Drainage Systems, Inc.
Maximum Allowable Wheel Loads
Maximum Allowable Track Loads'
Maximum Allowable Roller Loads
Fill Depth
Material
over Chambers
Max Axle Load Max Wheel Load
Track Max Ground
Max Drum Weight
Location
in. [mm]
for Trucks for Loaders
lbs [kN] lbs [kN]
in. [mm]
lbs [kN]
(Q) Final Fill
36" [900]
32,000 [142] 16,000 [71]
psf[kPa]
12" [305] 20 [164]
38,000 [169]
Material
Compacted
18"
[457] 0[113]30"
F2350
V62]10 [72]
36" 9141063
©Initial Fill
24" [600]
32,000 [142]
16,000 p1]
12" [305]
80 [119]
20,000 [89]
Material
Compacted
18" [457]
770 [85]
24" [610]
1430 [68]
30" V62]
1210 [58]
36" [914]
1070 [51 ]
24" [600]
32,000 [142]
16,000 [71]
12" [305]
2245 [107]
20,000 [89]
Loose/Dumped
18" [457]
1625 [78]
Roller gross vehicle weight not to
24" [610]
1325 [63]
exceed 12,000 lbs. [53 kN]
30" V62]
1135 [54]
36" [914]
1010 [48]
18" [450]
32,000 [142]
16,000 [71]
12" [305]
2010 [96]
20,000 [89]
18" [457]
1480 [71 ]
Roller gross vehicle weight not to
24" [610]
1220 [58]
exceed 12,000 lbs. [53 kN]
30" V62]
1060 [51 ]
36" [914]
950 [45]
©Embedment
12" [300]
16,000 [71]
NOTALLOWED
12" [305]
1540 [74]
20,000 [89]
Stone
18" [457]
1190 [57]
Roller gross vehicle weight not to
24" [610]
1010 [48]
exceed 12,000 lbs. [53 kN]
30" V62]
910 [43]
36" [9141
840 40
6" [150]
8,000 [35]
NOTALLOWED
12" [305]
1070 [51]
NOT ALLOWED
18" [457]
900 [43]
24" [610]
800 [38]
30" V62]
760 [36]
36" [9141
1 720 34
Table 3 - Placement Methods and Descriptions
(R) Final Fill
A variety of placement methods may be
36" (900 mm) minimum
Dozers to push parallel to
Roller travel parallel to rows
Material
used. Al construction loads must not
cover required for dump
rows until 36" (900mm)
only until 36" (900 mm)
exceed the maximum limits in Table 2.
trucks to dump over
compaced cover is
compacted cover is
chambers.
reached.'
reached.
© Initial Fill
Excavator positioned off bed recommended.
Asphalt can be dumped into
Small LGP track dozers & skid
Use dynamic force of roller
Material
Small excavator allowed over
paver when compacted
loaders allowed to grade cover
only after compacted fill
chambers. Small dozer allowed.
pavement subbase reaches
stone with at least 6" (150 mm)
depth reaches 12" (300 mm)
18" (450 mm) above top of
stone under tracks at all times.
over chambers. Roller travel
chambers.
Equipment must push parallel
parallel to chamber rows only.
to rows at all times.
®Embedment
No equipment allowed on bare chambers.
No wheel loads allowed.
No tracked equipment is
No rollers allowed.
Stone
Use excavator or stone conveyor
Material must be placed
allowed on chambers until a
positioned off bed or on foundation
outside the limits of the
min. 6" (150 mm) cover
stone to evenly fill around all chambers
chamber bed.
stone is in place.
to at least the top of chambers.
QFoundation
No StormTech restrictions. Contractor responsible for any conditions or requirements by others relative to subgrade bearing
Stone
capacity, dewatering or protection of subgrade.
Call StormTech at 888.892.2694 for technical and product information or visit www.stormtech.com

17.0 Standard Limited Warranty StormTech®
STANDARD LIMITED WARRANTY OF STORMTECH LLC ("STORMTECH"): PRODUCTS
(A) This Limited Warranty applies solely to the StormTech (F)
chambers and end plates manufactured by StormTech
and sold to the original purchaser (the "Purchaser"). The
chambers and end plates are collectively referred to as the
"Products."
(B) The structural integrity of the Products, when installed
strictly in accordance with StormTech's written installation
instructions at the time of installation, are warranted to the
Purchaser against defective materials and workmanship
for one (1) year from the date of purchase. Should a defect
appear in the Limited Warranty period, the Purchaser shall
provide StormTech with written notice of the alleged defect
at StormTech's corporate headquarters within ten (10) days
of the discovery of the defect. The notice shall describe
the alleged defect in reasonable detail. StormTech agrees
to supply replacements for those Products determined
by StormTech to be defective and covered by this Limited
Warranty. The supply of replacement products is the sole
remedy of the Purchaser for breaches of this Limited
Warranty. StormTech's liability specifically excludes the
cost of removal and/or installation of the Products.
(C) THIS LIMITED WARRANTY IS EXCLUSIVE. THERE ARE
NO OTHER WARRANTIES WITH RESPECT TO THE
PRODUCTS, INCLUDING NO IMPLIED WARRANTIES
OF MERCHANTABILITY OR OF FITNESS FOR A
PARTICULAR PURPOSE.
(D) This Limited Warranty only applies to the Products when
the Products are installed in a single layer. UNDER NO
CIRCUMSTANCES, SHALL THE PRODUCTS BE
INSTALLED IN A MULTI -LAYER CONFIGURATION.
(E) No representative of StormTech has the authority to
change this Limited Warranty in any manner or to extend
this Limited Warranty. This Limited Warranty does not
apply to any person other than to the Purchaser.
Under no circumstances shall StormTech be liable to the
Purchaser or to any third party for product liability claims;
claims arising from the design, shipment, or installation
of the Products, or the cost of other goods or services
related to the purchase and installation of the Products.
For this Limited Warranty to apply, the Products must be
installed in accordance with all site conditions required
by state and local codes; all other applicable laws; and
StormTech's written installation instructions.
(G) THE LIMITED WARRANTY DOES NOT EXTEND
TO INCIDENTAL, CONSEQUENTIAL, SPECIAL OR
INDIRECT DAMAGES. STORMTECH SHALL NOT BE
LIABLE FOR PENALTIES OR LIQUIDATED DAMAGES,
INCLUDING LOSS OF PRODUCTION AND PROFITS;
LABOR AND MATERIALS; OVERHEAD COSTS; OR
OTHER LOSS OR EXPENSE INCURRED BY THE
PURCHASER OR ANY THIRD PARTY. SPECIFICALLY
EXCLUDED FROM LIMITED WARRANTY COVERAGE
ARE DAMAGE TO THE PRODUCTS ARISING FROM
ORDINARY WEAR AND TEAR; ALTERATION,
ACCIDENT, MISUSE, ABUSE OR NEGLECT, THE
PRODUCTS BEING SUBJECTED TO VEHICLE
TRAFFIC OR OTHER CONDITIONS WHICH ARE
NOT PERMITTED BY STORMTECH'S WRITTEN
SPECIFICATIONS OR INSTALLATION INSTRUCTIONS;
FAILURE TO MAINTAIN THE MINIMUM GROUND
COVERS SET FORTH IN THE INSTALLATION
INSTRUCTIONS; THE PLACEMENT OF IMPROPER
MATERIALS INTO THE PRODUCTS; FAILURE OF
THE PRODUCTS DUE TO IMPROPER SITING OR
IMPROPER SIZING; OR ANY OTHER EVENT NOT
CAUSED BY STORMTECH. A PRODUCT ALSO IS
EXCLUDED FROM LIMITED WARRANTY COVERAGE
IF SUCH PRODUCT IS USED IN A PROJECT OR
SYSTEM IN WHICH ANY GEOTEXTILE PRODUCTS
OTHER THAN THOSE PROVIDED BY ADVANCED
DRAINAGE SYSTEMS ARE USED. THIS LIMITED
WARRANTY REPRESENTS STORMTECH'S SOLE
LIABILITY TO THE PURCHASER FOR CLAIMS
RELATED TO THE PRODUCTS, WHETHER THE CLAIM
IS BASED UPON CONTRACT, TORT, OR OTHER
LEGAL THEORY.
41
StormTech®
Detention • Retention . Water Quality
An company
20 Beaver Road, Suite 104 I Wethersfield I Connecticut 106109
888.892.2694 fax [phone]
www.stormtech.com

1111111
m9m,
GEOSYNTHEl'ICS
ADS GEOSYNTHETICS 0601T NONWOVEN GEOTEXTILE
Scope
This specification describes ADS Geosynthetics 6.0 oz (0601T) nonwoven geotextile.
Filter Fabric Requirements
ADS Geosynthetics 6.0 oz (0601T) is a needle -punched nonwoven geotextile made of 100%
polypropylene staple fibers, which are formed into a random network for dimensional stability. ADS
Geosynthetics 6.0 oz (0601T) resists ultraviolet deterioration, rotting, biological degradation, naturally
encountered basics and acids. Polypropylene is stable within a pH range of 2 to 13. ADS Geosynthetics
6.0 oz (0601T) conforms to the physical property values listed below:
Filter Fabric Properties
PROPERTY
TEST METHOD
UNIT
M.A.R.V.
(Minimum Average Roll Value)
Weight (Typical)
ASTM D 5261
oz/yd2 (g/m2)
6.0(203)
Grab Tensile
ASTM D 4632
Ibs (kN)
160 (0.711)
Grab Elongation
ASTM D 4632
%
50
Trapezoid Tear Strength
ASTM D 4533
Ibs (kN)
60 (0.267)
CBR Puncture Resistance
ASTM D 6241
Ibs (kN)
410 (1.82)
Permittivity*
ASTM D 4491
sec'
1.5
Water Flow*
ASTM D 4491
gpm/ft2 (Vmin/m2)
110 (4480)
AOS*
ASTM D 4751
US Sieve (mm)
70 (0.212)
UV Resistance
ASTM D 4355
%/hrs
70/500
PACKAGING
Roll Dimensions (W x L) — ft
12.5 x 360 / 15 x 300
Square Yards Per Roll
500
Estimated Roll Weight — Ibs
195
" At the time of manufacturing. Handling may change these properties.
ADS "Terms and Conditions of Sale" can be found on the ADS webs ite, www.ads-pipe.com Advanced Drainage Systems and the ADS logo is a registered trademark of
Advanced Drainage Systems, Inc. ©Advanced Drainage Systems, Inc. #0601T 02/12

1111111
m9m,
GEOSYNTHEl'ICS
ADS GEOSYNTHETICS 315W WOVEN GEOTEXTILE
Scope
This specification describes ADS Geosynthetics 315W woven geotextile.
Filter Fabric Requirements
ADS Geosynthetics 315W is manufactured using high tenacity polypropylene yarns that are woven to
form a dimensionally stable network, which allows the yarns to maintain their relative position. ADS
Geosynthetics 315W resists ultraviolet deterioration, rotting and biological degradation and is inert to
commonly encountered soil chemicals. ADS Geosynthetics 315W conforms to the physical property
values listed below:
Filter Fabric Properties
PROPERTY
TEST
METHOD
ENGLISH M.A.R.V.
(Minimum Average Roll Value)
METRIC M.A.R.V.
(Minimum Average Roll Value)
Tensile Strength (Grab)
ASTM D-4632
315 Ibs
1400 N
Elongation
ASTM D-4632
15%
15%
CBR Puncture
ASTM D-6241
900 Ibs
4005 N
Puncture
ASTM D-4833
150 Ibs
667 N
Mullen Burst
ASTM D-3786
600 psi
4134 kPa
Trapezoidal Tear
ASTM D-4533
120 Ibs
533 N
UV Resistance (at
500 hrs)
ASTM D-4355
70%
70%
Apparent Opening Size
(AOS)*
ASTM D-4751
40 US Std.
Sieve
0.425 mm
Permittivity
ASTM D-4491
.05 sec'
.05 sec'
Water Flow Rate
ASTM D-4491
4 gpm/ft2
163 I/min/m2
Roll Sizes
12.5'x360'
15.0' x 300'
17.5'x258'
3.81 mx109.8m
4.57 m x 91.5 m
5.33mx78.6m
"Maximum average roll value.
ADS "Terms and Conditions of Sale" can be found on the ADS website, www.ads-pipe.com Advanced Drainage Systems and the ADS logo is a registered trademark of
Advanced Drainage Systems, Inc. ©Advanced Drainage Systems, Inc. #315W 02/12

StormTech' MlC11111111111111111113500
-namb�.
Designed to meet the most stringent industry performance
standards for superior structural integrity while providing designers
with a cost-effective method to save valuable land and protect
water resources. The StormTech system is designed primarily to be
used under parking lots, thus maximizing land usage for private
(commercial) and public applications. StormTech -nbers can also
be used in conjunction with Green Infrastructure, thus enhancing
the performance and extending the service life of these practices.
Nominal Chamber
Specifications
(not to scale)
Size (L x W x H)
90" x 77" x 45"
2286 mm x 1956 mm x 1143 mm
Chamber Storage
109.9 ft3 (3.11 m3)
Min. Installed Storage*
175.0 ft3 (4.96 m3)
Weight
134 Ibs (60.8 kg)
Shipping
15 chambers/pallet
7 end caps/pallet
7 pallets/truck
*Assumes a minimum of 12" (300
mm) of stone above, 9" (230 mm)
of stone below chambers, 6" (150
mm) of stone between chambers/
end caps and 40% stone porosity.
EMBEDMENT STONE SHALL BE A CLEAN, CRUSHED AND AN GUTAR
STONE WITH AN AASHTOM43DESIGNATION BETWEEN# AND#
CHAMBERSSHALLMEETASTM F2418"STANDARD
SPECIFICATION FOR POLVPROPLENE (PP) CORRUGATED
WALL STORM WATER COLLECTION CHAMBERS'
ADS GEOSVTHETIGS 601T NONWOVEN
GEOTEXTILE ALL AROUND CLEAN, CRUSHED,
ANGUTAREMBEDMENTSTONE
Nominal End Cap Specifications
(not to scale)
Size (L x W x H)
26.5"x71"x45.1"
673 mm x 1803 mm x 1145 mm
End Cap Storage
14.9 ft3 (0.42 m3)
Min. Installed Storage*
45.1 ft3 (1.28 m3)
Weight
49 Ibs (22.2 kg)
22.5"
(571 mn)
INSTALLED
45A"
(1143 mm)
25.7"
(653 nn) (1956 mm)
45.0"
(1143 mm)
77.0" �-
I^ (1956 nm) -I
*Assumes a minimum of 12" (300 mm)
of stone above, 9" (230 mm) of stone
below, 6" (150 mm) of stone perimeter,
6" (156 mm) of stone between chambers/
end caps and 40% stone porosity.
GRANULARWELL-GRADEDSOILIAGGREGATEMIXTURES,< %
FINES, COM PACT IN I2" (300 mm) MAX LIFTS TO %% PROCTOR
i DENSITY. SEETHE TABLE OF ACCEPTABLE FILL MATERIALS.
CHAMBERS SHALL BE BE DESIGNED IN ACCORDANCE WITH ASTM F2
"STANDARD PRACTICE FORSTRUCTURAL DESIGN OFTHERMOPLASTIC
CORRUGATED WALL STORM WATER COLLECTION CHAMBERS".
PAVEMENT LAYER(DESIGNED
/'' r BV SITEOESIGNENGINEER)
\ / , 1 e
PERIMETERSTONE (450mm)MIN' (24m)
MAX
12" (300 mm)MIN
EXGAVATION WALL
(CAN BESLQPEB-
ORVERTIGIL) f�
II„ I I
-T-
T' L DEPTH OFSTONETOBEOETERMINI
(150mm)MIN IIIII II IIII"I l�Ev
BV SITE DESIGN ENGINEERO'-I
MC GAP III III / 6' ]] 1950 mm 12" 300 mm TYP
150 mm MIN I ( ) _( )
ENO GIP ( ) Ir
SITE DESIGN ENGINEER IS RESPONSIBLE FOR ENSURING _
THE REQUIRED BEARING GIPACITY OF SOILS
'MINIMUM COVER TO BOTTOM OF FLEXIBLE PAVEM ENT. FOR UNPAVED INSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR, INCREASE GMER T024" (600 mm).
///" StormTech 'v

StormTech MC-3500 Specifications
Storage Volume Per Chamber
Chamber 109.9 (3.11) 175.0 (4.96) 179.9 (5.09) 184.9 (5.24) 189.9 (5.38)
End Cap 14.9 (0.42) 45.1 (1.28) 46.6 (1.32) 48.3 (1.37) 49.9 (1.41)
Note: Assumes 6" (150 mm) row spacing, 40% stone porosity, 12" (300 mm) stone above and includes the
bare chamber/end cap volume.
Amount of Stone Per Chamber
Stone FoundationINV
Depth
Chamber 8.5 (6.0)
9.1 (6.5)
9.7 (6.9)
10.4 (7.4)
End Cap 3.9 (2.8)
4.1 (2.9)
4.3 (3.1)
4.5 (3.2)
KilogramsMetric M
I�
Chamber 7711 (4.6)
8255 (5.0)
8800 (5.3)
9435 (5.7)
End Cap 3538 (2.1)
3719 (2.2)
3901 (2.4)
4082 (2.5)
Note: Assumes 12" (300 mm) of stone above and 6" (150 mm) row spacing and 6" (150 mm) of perimeter
stone in front of end caps.
Volume Excavation Per Chamber yd3 (m3)
Chamber 11.9 (9.1) 12.4 (9.5) 12.8 (9.8) 13.3 (10.2)
End Cap 4.0 (3.1) 4.1 (3.3) 4.3 (3.3) 4.4 (3.4)
Note: Assumes 6" (150 mm) of separation between chamber rows and 24" (600 mm) of cover. The volume of
excavation will vary as depth of cover increases.
Working on a project?
Visit us at ✓ww.stormtech.cor and utilize the Design Tool
AAWStormTech, 4w
adspipe.com
800-821-6710
ADS "Terms and Conditions of Sale" are available on the ADS webslte, www.aos-pipe.com
The ADS logo and the Green Stripe are registered trademarks of Advanced Drainage Systems, Inc.
StormTech- is a registered trademark of StormTech, Inc.
© 2022 Advanced Drainage Systems, Inc. #S7509091/22 CS

ACCEPTABLE FILL MATERIALS: STORMTECH MC-3500 CHAMBER SYSTEMS
AASHTO MATERIAL
MATERIAL LOCATION
DESCRIPTION
COMPACTION / DENSITY REQUIREMENT
CLASSIFICATIONS
FINAL FILL: FILL MATERIAL FOR LAYER'D' STARTS FROM THE
PREPARE PER SITE DESIGN ENGINEER'S PLANS. PAVED
D
TOP OF THE'C' LAYER TO THE BOTTOM OF FLEXIBLE
ANY SOIL/ROCK MATERIALS, NATIVE SOILS, OR PER ENGINEER'S PLANS.
N/A
INSTALLATIONS MAY HAVE STRINGENT MATERIAL AND
PAVEMENT OR UNPAVED FINISHED GRADE ABOVE. NOTE THAT
CHECK PLANS FOR PAVEMENT SUBGRADE REQUIREMENTS.
PREPARATION REQUIREMENTS.
PAVEMENT SUBBASE MAY BE PART OF THE'D' LAYER
AASHTO M145'
INITIAL FILL: FILL MATERIAL FOR LAYER'C' STARTS FROM THE
GRANULAR WELL -GRADED SOIL/AGGREGATE MIXTURES, <35% FINES OR
A-1, A-2-4, A-3
BEGIN COMPACTIONS AFTER 24" (600 mm) OF MATERIAL OVER
TOP OF THE EMBEDMENT STONE ('B' LAYER) TO 24" (600 mm)
PROCESSED AGGREGATE.
THE CHAMBERS IS REACHED. COMPACT ADDITIONAL LAYERS IN
C
ABOVE THE TOP OF THE CHAMBER. NOTE THAT PAVEMENT
OR
12" (300 mm) MAX LIFTS TO A MIN. 95% PROCTOR DENSITY FOR
SUBBASE MAY BE A PART OF THE'C' LAYER.
MOST PAVEMENT SUBBASE MATERIALS CAN BE USED IN LIEU OF THIS
WELL GRADED MATERIAL AND 95% RELATIVE DENSITY FOR
LAYER.
AASHTO M43
PROCESSED AGGREGATE MATERIALS.
3, 357, 4, 467, 5, 56, 57, 6, 67, 68, 7, 78, 8, 89, 9, 10
EMBEDMENT STONE: FILL SURROUNDING THE CHAMBERS
AASHTO M43'
B
FROM THE FOUNDATION STONE ('A' LAYER) TO THE'C' LAYER
CLEAN, CRUSHED, ANGULAR STONE
3,4
NO COMPACTION REQUIRED.
ABOVE.
A
FOUNDATION STONE: FILL BELOW CHAMBERS FROM THE
CLEAN, CRUSHED, ANGULAR STONE
AASHTO M43'
PLATE COMPACT OR ROLL TO ACHIEVE A FLAT SURFACE23
SUBGRADE UP TO THE FOOT (BOTTOM) OF THE CHAMBER.
3,4
PLEASE NOTE:
1. THE LISTED AASHTO DESIGNATIONS ARE FOR GRADATIONS ONLY. THE STONE MUST ALSO BE CLEAN, CRUSHED, ANGULAR. FOR EXAMPLE, A SPECIFICATION FOR #4 STONE WOULD STATE: "CLEAN, CRUSHED, ANGULAR NO. 4 (AASHTO M43) STONE".
2. STORMTECH COMPACTION REQUIREMENTS ARE MET FORA' LOCATION MATERIALS WHEN PLACED AND COMPACTED IN 9" (230 mm) (MAX) LIFTS USING TWO FULL COVERAGES WITH A VIBRATORY COMPACTOR.
3. WHERE INFILTRATION SURFACES MAY BE COMPROMISED BY COMPACTION, FOR STANDARD DESIGN LOAD CONDITIONS, A FLAT SURFACE MAY BE ACHIEVED BY RAKING OR DRAGGING WITHOUT COMPACTION EQUIPMENT. FOR SPECIAL LOAD DESIGNS, CONTACT STORMTECH FOR
COMPACTION REQUIREMENTS.
4. ONCE LAYER'C' IS PLACED. ANY SOIL/MATERIAL CAN BE PLACED IN LAYER'D' UP TO THE FINISHED GRADE. MOST PAVEMENT SUBBASE SOILS CAN BE USED TO REPLACE THE MATERIAL REQUIREMENTS OF LAYER 'C' OR'D' AT THE SITE DESIGN ENGINEER'S DISCRETION.
PERIMETER STONE
(SEE NOTE 4)
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL;
6" (15C
ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
M C-3500
END CAP
SUBGRADE SOILS
(SEE NOTE 3)
1 LAYER OF ADS GEOSYNTHETICS NON -WOVEN GEOTEXTILE BEWTEEN COVER STONE AND C LAYER.
O
"TO BOTTOM OF FLEXIBLE PAVEMENT. FOR UNPAVED
NSTALLATIONS WHERE RUTTING FROM VEHICLES MAY OCCUR,\
INCREASE COVER TO 30"(750mm). '11-
1 8'
18" (450 mm) (2.4 m)
MIN" MAX
12" (300 mm) MIN
45"
(1143 mm)
DEPTH OF STONE TO BE DETERMINED
BY SITE DESIGN ENGINEER 9" (230 mm) MIN
-III 61IIIIIIL -III=III 77" (1956 mm) 12" (300 mm) MIN
(150 mm) MIN
*FOR COVER DEPTHS GREATER THAN 8.0' (2.4 m) PLEASE CONTACT STORMTECH
NOTES:
1. CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F2418-16a, "STANDARD SPECIFICATION FOR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS" CHAMBER CLASSIFICATION
45x76 DESIGNATION SS.
2. MC-3500 CHAMBERS SHALL BE DESIGNED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS".
3. THE SITE DESIGN ENGINEER IS RESPONSIBLE FOR ASSESSING THE BEARING RESISTANCE (ALLOWABLE BEARING CAPACITY) OF THE SUBGRADE SOILS AND THE DEPTH OF FOUNDATION STONE WITH CONSIDERATION
FOR THE RANGE OF EXPECTED SOIL MOISTURE CONDITIONS.
4. PERIMETER STONE MUST BE EXTENDED HORIZONTALLY TO THE EXCAVATION WALL FOR BOTH VERTICAL AND SLOPED EXCAVATION WALLS.
5. REQUIREMENTS FOR HANDLING AND INSTALLATION:
• TO MAINTAIN THE WIDTH OF CHAMBERS DURING SHIPPING AND HANDLING, CHAMBERS SHALL HAVE INTEGRAL, INTERLOCKING STACKING LUGS.
• TO ENSURE A SECURE JOINT DURING INSTALLATION AND BACKFILL, THE HEIGHT OF THE CHAMBER JOINT SHALL NOT BE LESS THAN 3".
• TO ENSURE THE INTEGRITY OF THE ARCH SHAPE DURING INSTALLATION, a) THE ARCH STIFFNESS CONSTANT AS DEFINED IN SECTION 6.2.8 OF ASTM F2418 SHALL BE GREATER THAN OR EQUAL TO 500 LBS/IN/IN.
AND b) TO RESIST CHAMBER DEFORMATION DURING INSTALLATION AT ELEVATED TEMPERATURES (ABOVE 73° F / 23° C), CHAMBERS SHALL BE PRODUCED FROM REFLECTIVE GOLD OR YELLOW COLORS.
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COVER PIPE CONNECTION TO END
INSTALL FLAMP ON 24" (600 mm) ACCESS PIPE
OPTIONAL INSPECTION PORT
CAP WITH ADS GEOSYNTHETICS 601T
PART #: MC350024RAMP
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NON -WOVEN GEOTEXTILE
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SUMP DEPTH TBD BY CATCH BASIN
SITE DESIGN ENGINEER OR MANHOLE
(24" [600 mm] MIN RECOMMENDED) j �
24" (600 mm) HDPE ACCESS PIPE REQUIRED
USE FACTORY PARTIAL CUT END CAP PART #:
MC35001EPP24BC OR MC35001EPP24BW
MC-3500 ISOLATOR ROW PLUS DETAIL
NITS
INSPECTION & MAINTENANCE
STEP 1) INSPECT ISOLATOR ROW PLUS FOR SEDIMENT
A. INSPECTION PORTS (IF PRESENT)
A.1. REMOVE/OPEN LID ON NYLOPLAST INLINE DRAIN
A.2. REMOVE AND CLEAN FLEXSTORM FILTER IF INSTALLED
CONCRETE C
A.3. USING A FLASHLIGHT AND STADIA ROD, MEASURE DEPTH OF SEDIMENT AND RECORD ON MAINTENANCE LOG
PAVEM
A.4. LOWER A CAMERA INTO ISOLATOR ROW PLUS FOR VISUAL INSPECTION OF SEDIMENT LEVELS (OPTIONAL)
A.5. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
B. ALL ISOLATOR PLUS ROWS
B.1. REMOVE COVER FROM STRUCTURE AT UPSTREAM END OF ISOLATOR ROW PLUS
B.2. USING A FLASHLIGHT, INSPECT DOWN THE ISOLATOR ROW PLUS THROUGH OUTLET PIPE
CONCRETE SLAB
i) MIRRORS ON POLES OR CAMERAS MAYBE USED TO AVOID A CONFINED SPACE ENTRY
6" (150 mm) MIN THICKNE
ii) FOLLOW OSHA REGULATIONS FOR CONFINED SPACE ENTRY IF ENTERING MANHOLE
B.3. IF SEDIMENT IS AT, OR ABOVE, 3" (80 mm) PROCEED TO STEP 2. IF NOT, PROCEED TO STEP 3.
STEP 2)
CLEAN OUT ISOLATOR ROW PLUS USING THE JETVAC PROCESS
STORMTECH CHAMBER
A. A FIXED CULVERT CLEANING NOZZLE WITH REAR FACING SPREAD OF 45" (1.1 m) OR MORE IS PREFERRED
B. APPLY MULTIPLE PASSES OF JETVAC UNTIL BACKFLUSH WATER IS CLEAN
C. VACUUM STRUCTURE SUMP AS REQUIRED
STEP 3)
REPLACE ALL COVERS, GRATES, FILTERS, AND LIDS; RECORD OBSERVATIONS AND ACTIONS.
STEP 4)
INSPECT AND CLEAN BASINS AND MANHOLES UPSTREAM OF THE STORMTECH SYSTEM.
N[)TF4
1. INSPECT EVERY 6 MONTHS DURING THE FIRST YEAR OF OPERATION. ADJUST THE INSPECTION INTERVAL BASED ON PREVIOUS
OBSERVATIONS OF SEDIMENT ACCUMULATION AND HIGH WATER ELEVATIONS.
2. CONDUCT JETTING AND VACTORING ANNUALLY OR WHEN INSPECTION SHOWS THAT MAINTENANCE IS NECESSARY.
ONE LAYER OF ADSPLUS175 WOVEN GEOTEXTILE BETWEEN
FOUNDATION STONE AND CHAMBERS
8.25' (2.51 m) MIN WIDE CONTINUOUS FABRIC WITHOUT SEAMS
12" (300 mm) MIN WIDTH
r
�NCRETE COLLAR NOT REQUIRED
)R UNPAVED APPLICATIONS
8" NYLOPLAST INSPECTION PORT
BODY (PART# 2708AG41PKIT) OR
TRAFFIC RATED BOX W/SOLID
LOCKING COVER
4" (100 mm)
SDR 35 PIPE
4" (100 mm) INSERTA TEE
TO BE CENTERED ON
CORRUGATION VALLEY
NOTE:
INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER CORRUGATION VALLEY.
4" PVC INSPECTION PORT DETAIL
O
MC SERIES CHAMBE
NTS
SHEET
1 of 1

ADS® StormTech® Installation Guide
mr -`00 & MC-4500 Chamber
Required Materials and Equipment List
• Acceptable fill materials per Table 1 • StormTech solid end caps, pre -cored and pre -fabricated end caps
• ADS Plus and non -woven geotextile fabrics • StormTech chambers, manifolds and fittings
StormTech
Installation Video
Note: MC-3500 chamber pallets are 77" x 90" (2.0 m x 2.3 m) and weigh about 2010 lbs. (912 kg) and MC-4500 pallets are 100"x 52" (2.5 m x 1.3 m) and
weigh about 840 lbs. (381 kg). Unloading chambers requires 72" (1.8 m) (min.) forks and/or tie downs (straps, chains, etc).
Important Notes:
A. This installation guide provides the minimum requirements for proper installation of chambers. Nonadherence to this guide may result in
damage to chambers during installation. Replacement of damaged chambers during or after backfilling is costly and very time consuming. It
is recommended that all installers are familiar with this guide, and that the contractor inspects the chambers for distortion, damage and joint
integrity as work progresses.
B. Use of a dozer to push embedment stone between the rows of chambers may cause damage to chambers and is not an acceptable backfill
method. Any chambers damaged by using the "dump and push" method are not covered under the StormTech standard warranty.
C. Care should be taken in the handling of chambers and end caps. End caps must be stored standing upright. Avoid dropping, prying or excessive
force on chambers during removal from pallet and initial placement.
Requirei , ,ants. Syste, istallatioi
Excavate bed and prepare subgrade per
engineer's plans. Plans and specifications should
include Best Management Practices (BMPs)
to deter contamination of open pits during
construction.
Place non -woven geotextile over prepared soils
and up excavation walls.
Place clean, crushed, angular stone foundation
9" (230 mm) min. Install underdrains if required.
Compact to achieve a flat surface.

Manifold, Scour Fabric and Chamber Assembly
Install manifolds and layout ADS
PLUS fabric at inlet rows [min.
17.5 ft (5.33 m)] at each inlet end
cap. Place a continuous piece (no
seams) along entire length of
Isolator° PLUS Row(s).
Align the first chamber and
end cap of each row with inlet
pipes. Contractor may choose
to postpone stone placement
around end chambers and
leave ends of rows open for
easy inspection of chambers
during the backfill process.
Manifold Insertion
12" (300 mm) MIN INSERTION STORMTECH
END CAP
MANIFOLD STUB
MANIFOLD TRUNK
12" (300 mm)
MIN SEPARATION
NOTE: MANIFOLD STUB MUST BE LAID HORIZONTAL FOR
A PROPER FIT IN END CAP OPENING.
Insert inlet and outlet manifolds a minimum 12"
(300 mm) into chamber end caps. Manifold
header should be a minimum 12" (300 mm) from
base of end cap.
Continue installing chambers by
overlapping chamber end corrugations.
Chamberjoints are labeled "Lower joint
- Overlap Here" and "Build this direction
- Upper Joint" Be sure that the chamber
placement does not exceed the reach of
the construction equipment used to place
the stone. Maintain minimum 6" (150 mm)
spacing between MC-3500 rows and 9"
(230 mm) spacing between MC-4500 rows.
COVER PIPE CONNECTION TO END CAP WITH ADS
GEOSYNTHETICS 601T NONWOVENGEOTEXTILE
STORMTECH HIGHLY RECOMMENDS
FLEXSTORM INSERTS IN ANY UPSTREAM
STRUCTURES WITH OPEN GRATES
ELEVATED BYPASS MANIFOLD
SUMP BE PTH THE BY CATCH BASIN
SITE DES I ON ENGI NEER OR MANHOLE
(24' 1600 mm] MIN RECOMMENDED)
Place a continuous layer of ADS PLUS
fabric between the foundation stone and
the Isolator Row PLUS chambers, making
sure the fabric lays flat and extends the
entire width of the chamber feet.
When used on an Isolator Row PLUS, a 24"
FLAMP (flared end ramp) is attached to
the inside of the inlet pipe with a provided
threaded rod and bolt. The FLAMP then
lays on top of the ADS PLUS fabric.
INSTALL FLAMP ON 24' (600 mm) ACCESS PIPE
OPTIONAL INSPECTION PORT
r CHAMBER (MCd5005HOWN) a� r END CAP (MC 4500 SHOWN)
24' (600 mm) HOPE ACCESS PIPE REQUIRED / / ONE LAYER OF ADSPLUS175 WOVEN GEOTEXTILE BETWEEN
FOUNDATION STONE AND CHAMBERS
2

Initial Anchoring of Chambers - Embedment Stone
Initial embedment shall be spotted along the centerline of the chamber
evenly anchoring the lower portion of the chamber. This is best
accomplished with a stone conveyor or excavator reaching along the row
Backfill of Chambers - Embedment Stone
Uneven Backfill
Even Backfill
Backfill chambers evenly. Stone column height should never differ by more than
12" (300 mm) between adjacent chamber rows or between chamber rows and
perimeter.
///"StormTech
No equipment shall be operated on the bed at this stage of the installation.
Excavators must be located off the bed. Dump trucks shall not dump stone
directly on to the bed. Dozers or loaders are not allowed on the bed at this
time.
Perimeter Not Backfilled
Perimeter Fully Backfilled
Perimeter stone must be brought up evenly with chamber rows. Perimeter must be
fully back -filled, with stone extended horizontally to the excavation wall.
3

Backfill of Chambers - Embedment Stone and Cover Stone
Continue evenly backfilling between rows and around perimeter until
embedment stone reaches tops of chambers and a minimum 12" (300 mm)
of cover stone is in place. Perimeter stone must extend horizontally to the
excavation wall for both straight or sloped sidewalls. The recommended
backfill methods are with a stone conveyor outside of the bed or build as
you go with an excavator inside the bed reaching along the rows. Backfilling
while assembling chambers rows as shown in the picture will help to ensure
that equipment reach is not exceeded.
Final Backfill of Chambers - Fill Material
Install non -woven geotextile over stone. Geotextile must overlap 24" (600
mm) where edges meet. Compact at 24" (600 mm) of fill. Roller travel
parallel with rows.
Only after chambers have been backfilled to top of chamber and
with a minimum 12" (300 mm) of cover stone on top of chambers can
skid loaders and small LGP dozers be used to final grade cover stone
and backfill material in accordance with ground pressure limits in
Table 2. Equipment must push material parallel to rows only. Never push
perpendicular to rows. StormTech recommends the contractor inspect
chamber rows before placing final backfill. Any chambers damaged by
construction equipment shall be removed and replaced.
Inserta Tee Detail
CONVEYANCE
PIPE MATERIAL
MAY VARY (PVC,
HDPE, ETC.)
L
INSERTA TEEiTnYEw-iYEiTnYi
CONNECTIONW
Ixl
PLACE ADS PLUS WOVEN
GEOTEXTILE(CENTERED ON
INSERTA-TEE INLET) OVER BEDDING
STONE FOR SCOUR PROTECTION AT
SIDE INLET CONNECTIONS,
GEOTEXTILE MUST EXTEND 6"
(150 mm) PAST CHAMBER FOOT
NOTE:
PART NUMBERS WILL VARY BASED ON
INLET PIPE MATERIALS. CONTACT
STORMTECH FOR MORE INFORMATION.
SECTION A -A
DO NOT INSTALL
INSERTA-TEE AT
CHAMBERJOINTS
A
A
INSERTA TEE TO BE
INSTALLED, CENTERED
OVER CORRUGATION
SIDE VIEW
MAX DIAMETER OF
HEIGHT FROM BASE OF
CHAMBER
INSERTA TEE
CHAMBER (X)
MC-3500
12" (250 mm)
6" (150 MM)
MC-4500
12" (250 mm)
8" (200 mm)
INSERTA TEE FITTINGS AVAILABLE FOR SDR 26, SDR 35, SCH 40 IPS
GASKETED & SOLVENT WELD, N-12, HP STORM, C-900 OR DUCTILE IRON
4

Table 1- Acceptable Fill Materials
@Final Fill: Fill Material for layer'D'
Any soil/rock materials,
N/A
Prepare per site design engineer's
starts from the top of the 'C' layer to the
native soils or per
plans. Paved installations may have
bottom of flexible pavement or unpaved
engineer's plans. Check
stringent material and preparation
finished grade above. Note that the
plans for pavement
requirements.
pavement subbase may be part of the
subgrade requirements.
'D' layer.
©Initial Fill: Fill Material for layer'C'
Granular well -graded
AASHTO M145
Begin compaction after min. 24" (600
starts from the top of the embedment
soil/aggregate mixtures,
A-1, A-2-4, A-3
mm) of material over the chambers
stone ('B' layer) to 24" (600 mm) above
<35%fInes or processed
or
is reached. Compact additional layers
the top of the chamber. Note that
aggregate. Most
AASHTO M431
in 12" (300 mm) max. lifts to a min.
pavement subbase may be part of the
pavement subbase
3, 357, 4, 467, 5, 56,
95% Proctor density for well -graded
'C' layer.
materials can be used in
57, 6, 67, 68, 7, 78, 8,
material and 95% relative densityfor
lieu of this layer.
89, 9,10
processed aggregate materials.
©Embedment Stone: Fill the
Clean, crushed, angular
AASHTO M431
No compaction required.
surrounding chambers from the
stone
3,4
foundation stone ('A' layer) to the 'C'
layer above.
AO Foundation Stone: Fill below
Clean, crushed, angular
AASHTO M431
Place and compact in 9" (230 mm)
chambers from the subgrade up to the
stone,
3,4
max lifts using two full coverages with
foot (bottom) of the chamber.
a vibratory compactor 2'3
Please Note:
1. The listed AASHTO designations are for gradations only. The stone must also be clean, crushed, angular. For
example, a specification for #4 stone would state: "clean, crushed, angular no. 4 (AASHTO M43) stone".
2. StormTech compaction requirements are met for'A' location materials when placed and compacted in 9" (230
mm) (max) lifts using two full coverages with a vibratory compactor.
3. Where infiltration surfaces may be comprised by compaction, for standard installations and standard design load
conditions, a flat surface may be achieved by raking or dragging without compaction equipment. For special load
designs, contact StormTech for compaction requirements.
Figure 2 - Fill Material Locations
PERIMETER STONE
EXCAVATION WALL
(CAN BE SLOPED OR VERTICAL:
MC-4500 - 12"
MC-3500 - 6"
ADS GEOSYNTHETICS 601T NON -WOVEN GEOTEXTILE ALL
AROUND CLEAN, CRUSHED, ANGULAR STONE IN A & B LAYERS
SUBGRADE SOILS
Figure 1- Inspection Port Detail
CONCRETE
PAVEM
CONCRETE SL
6" (150 mm) N
THICKNE:
STORMTECH
CHAMBER
12" (300 mm) MIN WIDTH
ONCRETE COLLAR NOT REQUIRED
)R UNPAVED APPLICATIONS
8" NYLOPLAST INSPECTION PORT
BODY (PART# 2708AG41PKIT) OR
TRAFFIC RATED BOX W/SOLID
LOCKING COVER
4" (100 mm)
SDR 35 PIPE
4" (100 mm) INSERTA TEE
TO BE CENTERED ON
CORRUGATION VALLEY
NOTE:
INSPECTION PORTS MAY BE CONNECTED THROUGH ANY CHAMBER CORRUGATION VALLEY.
PAVEMENT LAYER (DESIGNED
BY SITE DESIGN ENGINEER)
D \���\��\� \���\� 'TO BOTTOM OFFLEIHBLEPAVEMENT_FIX211NPAVEO
\yi ���%C�\y/, INSTALLATIONS WHERE RIITTIN G FROM VEHICLES MAY OCCBR,�MC-4500-24" MC-4500-7.0' 2.1 m MAX
CH INCREASECOVERTOaa• somm) 600mm ( )
�o/i u�� /i a /i u�� it _ _ _ _ _ • u�� , ( ) MIN
MC-3500 - 18" (450 mm) MIN MC-3500 - 8.0' (2.4 m) MAX
O12" (300 mm) MIN
B
1 1 MC-4500 - 60" (1525 mm)
MC-3500 - 45" (1140 mm)
IIII IIIIIII IIIIIIIIIIIII II III - - - - DEPTH STONE TO BE DETERMINED
D
BY SITE DESIGN ENGINEER 9" (230 mm) MIN
MC 4500 - 9" (230 Rim) IMIIINII II IIMCI45001 I11100" (2540 mm) 12" (300 mm) MIN
MC 3500 - 6' (150 mm) MIN `MC-3500 - 77" (1950 mm)
5

Notes:
Table 2 - Maximum Allowable Construction Vehicle Loads6
1.36" (900 mm) of stabilized cover materials
over the chambers is recommended during
the construction phase if general construction
activities, such as full dump truck travel and
dumping, are to occur over the bed.
2. During paving operations, dump truck axle loads
on 18" (450mm) of cover for MC-3500s may
be necessary. Precautions should be taken to
avoid rutting of the road base layer, to ensure
that compaction requirements have been met,
and that a minimum of 18" (450mm) of cover
for MC-3500s exists over the chambers. Contact
StormTech for additional guidance on allowable
axle loads during paving.
3. Ground pressure for track dozers is the vehicle
operating weight divided by total ground contact
area for both tracks. Excavators will exert higher
ground pressures based on loaded bucket weight
and boom extension.
Final Fill
Material
©Initial Fill
Material
4. Mini -excavators (<8,000lbs/3,628 kg) can be
used with at least 12" (300 mm) of stone over ®Embedment
the chambers and are limited by the maximum Stone
ground pressures in Table 2 based on a full
bucket at maximum boom extension.
5. StormTech does not require compaction of
initial fill at 18" (450 mm) of cover. However,
requirements by others for 6" (150 mm) lifts may
necessitate the use of small compactors at 18"
(450 mm) of cover.
6. Storage of materials such as construction
materials, equipment, spoils, etc. should not
be located over the StormTech system. The use
of equipment over the StormTech system not
covered in Table 2 (ex. soil mixing equipment,
cranes, etc) is limited. Please contact StormTech
for more information.
36" (900)
32,000 (142)
16,000 (71)
12" (305)
4050 (194)
38,000 (169)
Compacted
(610)
(102)
24"
2130
30" (762)
1770 (84)
36" (914)
1530 (73)
24" (600)
32,000 (142)
16,000 (71)
12" (305)
2750 (131)
20,000 (89)
Compacted
24" (610)
1520 (73)
30" (762)
1310 (63)
36" (914)
1180 (56)
24" (600)
MC-3500
12" (305)
2430 (116)
16,000 (71)
Loose/Dumped
32,000 (142)
16,000 (71)
18" (457)
1730 (82)
MC 4500
24" (610)
30" (762)
1390 (66)
1210 (58)
24,000 (107)
12,000 (53)
36" (914)
1100 (52)
18" (450)
MC-3500
12" (305)
2140 (102)
5,000 (22)
32,000 (142)
16,000 (71)
18" (457)
1530 (73)
(static loads only)'
MC 4500
24" (610)
30" (762)
1260 (60)
1120 (53)
24,000 (107)
12,000 (53)
36" (914)
1030 (49)
12" (300)
Not Allowed
Not Allowed
12" (305)
1100 (53)
Not Allowed
18" (457)
710 (34)
24" (610)
660 (32)
30" (762)
580 (28)
6" (150)
Not Allowed
Not Allowed
Not Allowed
Not Allowed
Not Allowed
Table 3 - Placement Methods and Descriptions
(0) Final Fill A variety of placement methods may 36" (900 mm) minimum Dozers to push parallel to Roller travel parallel to rows
Material be used All construction loads must cover required for dump rows ° only until 36" (900 mm)
not exceed the maximum limits in trucks to dump over compacted cover is
Table 2. chambers. reached.
®Initial Fill
Material
7. Allowable track loads based on vehicle travel only.
Excavators shall not operate on chamber beds © Embedment
until the total backfill reaches 3 feet (900 mm) Stone
over the entire bed.
Call StormTech at 888.892.2694 for technical and
product information or visit www.stormtech.com
AAWStormTech
Excavator positioned off bed recom-
mended.
Small excavator allowed over
chambers. Small dozer allowed.
No equipment allowed on bare
chambers. Use excavator or stone
conveyor positioned off bed or
on foundation stone to evenly fill
around all chambers to at least the
top of chambers.
Asphalt can be dumped
into paver when
compacted pavement
subbase reaches 24"
(600 mm) above top of
chambers.
No wheel loads allowed.
Material must be placed
outside the limits of the
chamber bed.
Small LGP track dozers &
skid loaders allowed to
grade cover stone with at
least 12" (300 mm) stone
under tracks at all times.
Equipment must push par-
allel to rows at all times.
No tracked equipment is
allowed on chambers until
a min. 12" (300 mm) cover
stone is in place.
Use dynamic force of roller
only after compacted fill
depth reaches 24" (600 mm)
over chambers. Roller travel
parallel to chamber rows
only.
No rollers allowed.
(Z) Foundation No StormTech restrictions. Contractor responsible for any conditions or requirements by others relative to subgrade bearing
Stone capacity, dewatering or protection of subgrade.
6

17.0 Standard Limited Warranty StormTech®
STANDARD LIMITED WARRANTY OF STORMTECH LLC ("STORMTECH"): PRODUCTS
(A) This Limited Warranty applies solely to the StormTech (F)
chambers and end plates manufactured by StormTech
and sold to the original purchaser (the "Purchaser"). The
chambers and end plates are collectively referred to as the
"Products."
(B) The structural integrity of the Products, when installed
strictly in accordance with StormTech's written installation
instructions at the time of installation, are warranted to the
Purchaser against defective materials and workmanship
for one (1) year from the date of purchase. Should a defect
appear in the Limited Warranty period, the Purchaser shall
provide StormTech with written notice of the alleged defect
at StormTech's corporate headquarters within ten (10) days
of the discovery of the defect. The notice shall describe
the alleged defect in reasonable detail. StormTech agrees
to supply replacements for those Products determined
by StormTech to be defective and covered by this Limited
Warranty. The supply of replacement products is the sole
remedy of the Purchaser for breaches of this Limited
Warranty. StormTech's liability specifically excludes the
cost of removal and/or installation of the Products.
(C) THIS LIMITED WARRANTY IS EXCLUSIVE. THERE ARE
NO OTHER WARRANTIES WITH RESPECT TO THE
PRODUCTS, INCLUDING NO IMPLIED WARRANTIES
OF MERCHANTABILITY OR OF FITNESS FOR A
PARTICULAR PURPOSE.
(D) This Limited Warranty only applies to the Products when
the Products are installed in a single layer. UNDER NO
CIRCUMSTANCES, SHALL THE PRODUCTS BE
INSTALLED IN A MULTI -LAYER CONFIGURATION.
(E) No representative of StormTech has the authority to
change this Limited Warranty in any manner or to extend
this Limited Warranty. This Limited Warranty does not
apply to any person other than to the Purchaser.
Under no circumstances shall StormTech be liable to the
Purchaser or to any third party for product liability claims;
claims arising from the design, shipment, or installation
of the Products, or the cost of other goods or services
related to the purchase and installation of the Products.
For this Limited Warranty to apply, the Products must be
installed in accordance with all site conditions required
by state and local codes; all other applicable laws; and
StormTech's written installation instructions.
(G) THE LIMITED WARRANTY DOES NOT EXTEND
TO INCIDENTAL, CONSEQUENTIAL, SPECIAL OR
INDIRECT DAMAGES. STORMTECH SHALL NOT BE
LIABLE FOR PENALTIES OR LIQUIDATED DAMAGES,
INCLUDING LOSS OF PRODUCTION AND PROFITS;
LABOR AND MATERIALS; OVERHEAD COSTS; OR
OTHER LOSS OR EXPENSE INCURRED BY THE
PURCHASER OR ANY THIRD PARTY. SPECIFICALLY
EXCLUDED FROM LIMITED WARRANTY COVERAGE
ARE DAMAGE TO THE PRODUCTS ARISING FROM
ORDINARY WEAR AND TEAR; ALTERATION,
ACCIDENT, MISUSE, ABUSE OR NEGLECT, THE
PRODUCTS BEING SUBJECTED TO VEHICLE
TRAFFIC OR OTHER CONDITIONS WHICH ARE
NOT PERMITTED BY STORMTECH'S WRITTEN
SPECIFICATIONS OR INSTALLATION INSTRUCTIONS;
FAILURE TO MAINTAIN THE MINIMUM GROUND
COVERS SET FORTH IN THE INSTALLATION
INSTRUCTIONS; THE PLACEMENT OF IMPROPER
MATERIALS INTO THE PRODUCTS; FAILURE OF
THE PRODUCTS DUE TO IMPROPER SITING OR
IMPROPER SIZING; OR ANY OTHER EVENT NOT
CAUSED BY STORMTECH. A PRODUCT ALSO IS
EXCLUDED FROM LIMITED WARRANTY COVERAGE
IF SUCH PRODUCT IS USED IN A PROJECT OR
SYSTEM IN WHICH ANY GEOTEXTILE PRODUCTS
OTHER THAN THOSE PROVIDED BY ADVANCED
DRAINAGE SYSTEMS ARE USED. THIS LIMITED
WARRANTY REPRESENTS STORMTECH'S SOLE
LIABILITY TO THE PURCHASER FOR CLAIMS
RELATED TO THE PRODUCTS, WHETHER THE CLAIM
IS BASED UPON CONTRACT, TORT, OR OTHER
LEGAL THEORY.
41
StormTech®
Detention • Retention . Water Quality
An company
20 Beaver Road, Suite 104 I Wethersfield I Connecticut 106109
888.892.2694 fax [phone]
www.stormtech.com

1111111
m9m,
GEOSYNTHEl'ICS
ADS GEOSYNTHETICS 0601T NONWOVEN GEOTEXTILE
Scope
This specification describes ADS Geosynthetics 6.0 oz (0601T) nonwoven geotextile.
Filter Fabric Requirements
ADS Geosynthetics 6.0 oz (0601T) is a needle -punched nonwoven geotextile made of 100%
polypropylene staple fibers, which are formed into a random network for dimensional stability. ADS
Geosynthetics 6.0 oz (0601T) resists ultraviolet deterioration, rotting, biological degradation, naturally
encountered basics and acids. Polypropylene is stable within a pH range of 2 to 13. ADS Geosynthetics
6.0 oz (0601T) conforms to the physical property values listed below:
Filter Fabric Properties
PROPERTY
TEST METHOD
UNIT
M.A.R.V.
(Minimum Average Roll Value)
Weight (Typical)
ASTM D 5261
oz/yd2 (g/m2)
6.0(203)
Grab Tensile
ASTM D 4632
Ibs (kN)
160 (0.711)
Grab Elongation
ASTM D 4632
%
50
Trapezoid Tear Strength
ASTM D 4533
Ibs (kN)
60 (0.267)
CBR Puncture Resistance
ASTM D 6241
Ibs (kN)
410 (1.82)
Permittivity*
ASTM D 4491
sec'
1.5
Water Flow*
ASTM D 4491
gpm/ft2 (Vmin/m2)
110 (4480)
AOS*
ASTM D 4751
US Sieve (mm)
70 (0.212)
UV Resistance
ASTM D 4355
%/hrs
70/500
PACKAGING
Roll Dimensions (W x L) — ft
12.5 x 360 / 15 x 300
Square Yards Per Roll
500
Estimated Roll Weight — Ibs
195
" At the time of manufacturing. Handling may change these properties.
ADS "Terms and Conditions of Sale" can be found on the ADS webs ite, www.ads-pipe.com Advanced Drainage Systems and the ADS logo is a registered trademark of
Advanced Drainage Systems, Inc. ©Advanced Drainage Systems, Inc. #0601T 02/12

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GEOSYNTHEl'ICS
ADS GEOSYNTHETICS 315W WOVEN GEOTEXTILE
Scope
This specification describes ADS Geosynthetics 315W woven geotextile.
Filter Fabric Requirements
ADS Geosynthetics 315W is manufactured using high tenacity polypropylene yarns that are woven to
form a dimensionally stable network, which allows the yarns to maintain their relative position. ADS
Geosynthetics 315W resists ultraviolet deterioration, rotting and biological degradation and is inert to
commonly encountered soil chemicals. ADS Geosynthetics 315W conforms to the physical property
values listed below:
Filter Fabric Properties
PROPERTY
TEST
METHOD
ENGLISH M.A.R.V.
(Minimum Average Roll Value)
METRIC M.A.R.V.
(Minimum Average Roll Value)
Tensile Strength (Grab)
ASTM D-4632
315 Ibs
1400 N
Elongation
ASTM D-4632
15%
15%
CBR Puncture
ASTM D-6241
900 Ibs
4005 N
Puncture
ASTM D-4833
150 Ibs
667 N
Mullen Burst
ASTM D-3786
600 psi
4134 kPa
Trapezoidal Tear
ASTM D-4533
120 Ibs
533 N
UV Resistance (at
500 hrs)
ASTM D-4355
70%
70%
Apparent Opening Size
(AOS)*
ASTM D-4751
40 US Std.
Sieve
0.425 mm
Permittivity
ASTM D-4491
.05 sec'
.05 sec'
Water Flow Rate
ASTM D-4491
4 gpm/ft2
163 I/min/m2
Roll Sizes
12.5'x360'
15.0' x 300'
17.5'x258'
3.81 mx109.8m
4.57 m x 91.5 m
5.33mx78.6m
"Maximum average roll value.
ADS "Terms and Conditions of Sale" can be found on the ADS website, www.ads-pipe.com Advanced Drainage Systems and the ADS logo is a registered trademark of
Advanced Drainage Systems, Inc. ©Advanced Drainage Systems, Inc. #315W 02/12