APPENDIX D: PART 5
Project WQMP
Filterra Activation Package | Page 7
* UNPREPARED SITE FEE NOTE: A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that
the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
A. 24
A. 28
A. 32
A. 36
B. 8
B. 8
B. 10
B. 10
C. 4
C. 4
C. 5
C. 5
D. 2
D. 2
D. 3
D. 3
16x8 & 15x9
Media Bay
18x8 Media Bay
20x8 Media Bay
22x8 Media Bay
PDF 1/23 © 2023 Contech Engineered Solutions LLC, a QUIKRETE Company
ENGINEERED SOLUTIONS
Notes
___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ Filterra Vault
Owner’s Manual
(Precast Vault Configurations)
®
Bioretention Systems
ENGINEERED SOLUTIONS
This Owner’s Manual applies to all precast Filterra Configurations, including Filterra Bioscape Vault and Filterra HC.
www.ContechES.com/filterra | 800-338-1122
3 Table of Contents
Introduction ................................................................................4 Activation Overview .....................................................................4 Filterra Plant Selection Overview ...................................................6 Warranty Overview ......................................................................6 Routine Maintenance Guidelines
...................................................6
Maintenance Visit Procedure .........................................................9 Plant Care ................................................................................11 Appendix 1 – Activation Package ................................................12 Appendix 2 – Filterra T
ree Grate Opening Expansion Procedure..... 19
®
Bioretention Systems
ENGINEERED SOLUTIONS
www.ContechES.com/filterra | 800-338-1122
4 Introduction
Thank you for your purchase of the Filterra® Bioretention System. Filterra is a specially engineered stormwater treatment system incorporating high performance biofiltration media to remove pollutants from stormwater runoff. The system’s biota (vegetation and soil microorganisms) then further breakdown and absorb captured pollutants. All components of the system work together to provide a sustainable long-term solution for treating stormwater runoff.
The Filterra system has been delivered to you with protection in place to resist intrusion of construction related sediment which can contaminate the biofiltration media and result in inadequate system performance. These protection devices are intended as a best practice and cannot fully prevent contamination. It is the purchaser’s responsibility to provide adequate measures to prevent construction related runoff from entering the Filterra system.
Included with your purchase is Activation of the Filterra system by the manufacturer as well as a 1-year warranty from delivery of the system and a final site assessment of unit condition (mulch replacement, debris removal, and pruning of vegetation) scheduled between 6 and 12 months after activation, upon request.
Design and Installation
Each project presents different scopes for the use of Filterra systems. Information and help may be provided to the design engineer during the planning process. Correct Filterra box sizing (by rainfall region) is essential to predict pollutant removal rates for a given area. The engineer shall submit calculations for approval by the local jurisdiction. The contractor is responsible for the correct installation of Filterra units as shown in approved plans. A comprehensive installation manual is available at www.ContechES.com.
Activation Overview
Activation of the Filterra system is a procedure completed by the manufacturer to place the system into working condition. This involves the following items:
•
Removal of construction runoff protection devices.
• Planting of the system’s vegetation (provided by the purchaser). • Placement of pretreatment mulch layer using mulch acceptable for use in Filterra systems.
Activation MUST be provided by the manufacturer to ensure proper site conditions are met for Activation, proper installation of the vegetation, and use of pretreatment mulch acceptable for use in Filterra systems. More information is available in the F
ilterra Activation Package.
www.ContechES.com/filterra | 800-338-1122
5 Minimum Requirements
The minimum requirements for Filterra Activation are as follows:
1. The purchaser must have procured vegetation meeting the requirements outlined in the Filterra Activation Package.
2. The site landscaping must be fully stabilized, i.e. full landscaping installed and some grass cover (not just straw and seed) is required to reduce sediment transport. Construction debris and materials should be removed from surrounding area.
3. Final paving must be completed. Final paving ensures that paving materials will not enter and contaminate the F ilterra system
during the paving process, and that the plant will receive runoff from the drainage area, assisting with plant survival for the Filterra system.
4. Filterra throat opening should be at least 4” in order to ensure adequate capacity for inflow and debris.
The Filterra Activation P
ackage is available on the Contech website (www.ContechES.com/filterra) and ensures that the proper conditions are met for Contech to perform the Activation service. Vegetation meeting Contech’s requirements must be provided at time of Activation. If the site does not meet the conditions required for Activation, or acceptable vegetation is not provided by the purchaser at time of Activation, a charge of $1,500 will be invoiced to the purchaser.
www.ContechES.com/filterra | 800-338-1122
6 Filterra Plant Selection Overview
A Plant List is available on the Contech website highlighting recommended plants for Filterra systems in your area. Keep in mind that plants are subject to availability due to seasonality and required minimum size for the Filterra system. Plants installed in the Filterra system are container plants (max 15 gallon) from nursery stock and will be immature in height and spread at Activation.
It is the responsibility of the owner to provide adequate irrigation when necessary to the plant of the Filterra system.
More information is available in the Filterra Activation Package.
Warranty Overview
Refer to the Contech Engineered Solutions LLC Stormwater Treatment System LIMITED WARRANTY for further information. The following conditions may void the Filterra system’s warranty and waive the manufacturer provided Activation and Final Site Assessment services:
•
Unauthorized activation or performance of any of the items listed in the activation overview • Any tampering, modifications or damage to the Filterra system or runoff protection devices • Removal of any Filterra system components
• Failure to prevent construction related runoff from entering the Filterra system • Failure to properly store and protect any Filterra components (including media and underdrain stone) that may be shipped separately from the vault
Final Site Assessment
With proper routine maintenance, the biofiltration media within the Filterra system should last as long as traditional bioretention media. A final site assessment is included by the manufacturer, upon request, on all Filterra systems between 6 and 12 months after activation. This includes a final assessment of unit condition, debris removal, mulch replacement, and pruning of vegetation. More information is provided in the Operations and Maintenance Guidelines. Some Filterra systems also contain pretreatment or outlet bays. Depending on site pollutant loading, these bays may require periodic removal of debris, however this is not included in the final site assessment, and would likely not be required within the first year of operation.
These services, as well as routine maintenance outside of the included first year, can be provided by certified maintenance providers listed on the Contech website. Training can also be provided to other stormwater maintenance or landscape providers.
www.ContechES.com/filterra | 800-338-1122
7 Why Maintain?
All stormwater treatment systems require maintenance for effective operation. This necessity is often incorporated in your property’s permitting process as a legally binding BMP maintenance agreement. Other reasons to maintain are:
• Avoiding legal challenges from your jurisdiction’s maintenance enforcement program. • Prolonging the expected lifespan of your Filterra media. • Avoiding more costly media replacement.
• Helping reduce pollutant loads leaving your property.
Simple maintenance of the Filterra is required to continue effective pollutant removal from stormwater runoff before discharge into downstream waters. This procedure will also extend the longevity of the living biofilter system. The unit will recycle and accumulate pollutants within the biomass, but is also subjected to other materials entering the inlet. This may include trash, silt and leaves etc. which will be contained above the mulch layer
. Too much silt may inhibit the Filterra’s flow rate, which is the reason for site stabilization before activation. Regular replacement of the mulch stops accumulation of such sediment.
When to Maintain?
Maintenance visits are scheduled seasonally; the spring visit aims to clean up after winter loads including salts and sands while the fall visit helps the system by removing excessive leaf litter.
It has been found that in regions which receive between 30-50 inches of annual rainfall, (2) two visits are generally required; in regions with less rainfall often only (1) one visit per annum is sufficient. Varying land uses can affect maintenance frequency.
Contributing drainage areas which are subject to new development wherein the recommended erosion and sediment control measures have not been implemented may require additional maintenance visits.
Some sites may be subjected to extreme sediment or trash loads, requiring more frequent maintenance visits. This is the reason for detailed notes of maintenance actions per unit, helping the Supplier and Owner predict future maintenance frequencies, reflecting individual site conditions.
Owners must promptly notify the maintenance provider of any damage to the plant(s), which constitute(s) an integral part of the bioretention technology.
www.ContechES.com/filterra | 800-338-1122
8 Exclusion of Services
Clean up due to major contamination such as oils, chemicals, toxic spills, etc. will result in additional costs and are not included as part of the final site assessment. Should a major contamination event occur the Owner must block off the outlet pipe of the Filterra (where the cleaned runoff drains to, such as drop inlet) and block off the throat of the Filterra. The Supplier should be informed immediately.
Maintenance Visit Summary
Each maintenance visit consists of the following simple tasks (detailed instructions below).
1. Inspection of Filterra and surrounding area
2. Removal of tree grate and erosion control stones
3. Removal of debris, trash and mulch
4. Mulch replacement
5. Plant health evaluation and pruning or replacement as necessary
6. Clean area around Filterra
7. Complete paperwork
Maintenance Tools, Safety Equipment and Supplies
Ideal tools include: camera, bucket, shovel, broom, pruners, hoe/rake, and tape measure. Appropriate Personal Protective Equipment (PPE) should be used in accordance with local or company procedures. This may include impervious gloves where the type of trash is unknown, high visibility clothing and barricades when working in close proximity to traffic and also safety hats and shoes. A T-Bar or crowbar should be used for moving the tree grates (up to 170 lbs ea.). Most visits require minor trash removal and a full replacement of mulch. See below for actual number of bagged mulch that is required in each media bay size. Mulch should be a double shredded, hardwood variety. Some visits may require additional Filterra engineered soil media available from the Supplier.
Box Length Box Width Filter Surface
Area (ft²) Volume at 3” (ft³) # of 2 ft³ Mulch
Bags
4 4 16 4 2
6 4 24 6 3
8 4 32 8 4
6 6 36 9 5
8 6 48 12 6
10 6 60 15 8
12 6 72 18 9
13 7 91 23 12
Other sizes not listed - 1 bag per 8 ft2 of media.
www.ContechES.com/filterra | 800-338-1122
9 1. Inspection of Filterra and surrounding area
• Record individual unit before maintenance with photograph (numbered).
Record on Maintenance R
eport (see example in this document) the following:
2. Removal of tree grate and erosion control stones
• Remove cast iron grates for access into Filterra box. • Dig out silt (if any) and mulch and remove trash & foreign items.
3. Removal of debris, trash and mulch
• After removal of mulch and debris, measure distance from the top of the Filterra engineered media soil to the top of the top slab. Compare the measured distance to the distance shown on the approved Contract Drawings for the system. Add Filterra media (not top soil or other) to bring media up as needed to distance indicated on drawings.
Record on Maintenance Report the following:
Standing Water yes | no
Damage to Box Structure yes | no
Damage to Grate yes | no
Is Bypass Clear yes | no
If yes answered to any of these observations, record with close-up photograph (numbered).
Record on Maintenance Report the following:
Silt/Clay yes | no
Cups/ Bags yes | no
Leaves yes | no
Buckets Removed ________
Record on Maintenance Report the following:
Distance to Top of Top Slab (inches)
________
Inches of Media Added ________
Maintenance Visit Procedure
Keep sufficient documentation of maintenance actions to predict location specific maintenance frequencies and needs. An example Maintenance Report is included in this manual.
www.ContechES.com/filterra | 800-338-1122
10 4. Mulch replacement
• Add double shredded mulch evenly across the entire unit to a depth of 3”. • Refer to Filterra Mulch Specifications for information on acceptable sources. • Ensure correct repositioning of erosion control stones by the Filterra inlet to allow for entry of trash during a storm event.
• Replace Filterra grates correctly using appropriate lifting or moving tools, taking care not to damage the plant.
5. Plant health evaluation and pruning or replacement
as necessary
• Examine the plant’s health and replace if necessary.
• Prune as necessary to encourage growth in the correct directions
6. Clean area around Filterra
• Clean area around unit and remove all refuse to be disposed of appropriately.
7. Complete paperwork
• Deliver Maintenance Report.
• Some jurisdictions may require submission of maintenance reports in accordance with approvals. It is the responsibility of the Owner to comply with local regulations.
Record on Maintenance Report the following:
Height above Grate _____________________ (ft)
Width at W
idest Point _____________________ (ft)
Health healthy | unhealthy
Damage to Plant yes | no
Plant Replaced yes | no
www.ContechES.com/filterra | 800-338-1122
11 Plant Care for Filterra® Systems
After Activation, the Contractor is responsible for proper care of the vegetation until the site is handed over to the Owner.
After that, it is the Site Owner’s responsibility to care for the vegetation. Contech recommends the following care for the plants:
1. To prevent transplant shock (especially if planting takes place in the hot season), it may be necessary to prune
some of the foliage to compensate for reduced root
uptake capacity. This is accomplished by pruning away
some of the smaller secondary branches or a main
scaffold branch if there are too many
. Too much foliage
relative to the root ball can dehydrate and damage the
plant.
2. Plant staking may be required.
3. With all trees/shrubs, remove dead, diseased, crossed/ rubbing, sharply crotched branches or branches growing
excessively long or in wrong direction compared to
majority of branches.
4. Contech recommends irrigation of the Filterra®
Vegetation. The following guidance will help to ensure the vegetation is properly irrigated.
Irrigation Recommendations:
• Each Filterra® system must receive adequate irrigation to ensure survival of the living system during periods of drier weather.
•
Irrigation sources include rainfall runoff from downspouts and/or gutter flow, applied water through the tree grate or in some cases from an irrigation system with emitters installed during construction.
•
At Activation: Apply about one (cool climates) to two
(warm climates) gallons of water per inch of trunk
diameter over the root ball.
•
During Establishment: In common with all plants, each
Filterra
® plant will require more frequent watering during
the establishment period. One inch of applied water
per week for the first three months is recommended for
cooler climates (2 to 3 inches for warmer climates). If the system is receiving rainfall runoff from the drainage area, then irrigation may not be needed. Inspection of the soil moisture content can be evaluated by gently brushing
aside the mulch layer and feeling the soil. Be sure to
replace the mulch when the assessment is complete.
Irrigate as needed**.
•
Established Plants: Established plants have fully
developed root systems and can access the entire water
column in the media. Therefore irrigation is less frequent but requires more applied water when performed. For
a mature system assume 3.5 inches of available water
within the media matrix. Irrigation demand can be
estimated as 1” of irrigation demand per week. Therefore if dry periods exceed 3 weeks, irrigation may be required. ** Five gallons per square yard approximates 1 inch of water .
Therefore for a 6’ x 6 foot Filterra® approximately 20-60 gallons of applied water is needed. To ensure even distribution of water it needs to be evenly sprinkled over the entire surface of the filter bed, with special attention to make sure the root ball is completely wetted. NOTE: if needed, measure the time it takes to fill a five gallon bucket to estimate the applied water flow rate. Then calculate the time needed to irrigate the Filterra
®, For example is the flow rate of the sprinkler is 5
gallons/minute then it would take 12 minutes to irrigate a 6’x6’ filter.
Plant Replacement:
In some cases, plants will require replacement. Please follow the procedures below to ensure a properly functioning Filterra ®
system.
1. Remove the existing plant, and leave as much of the
Filterra® media in place as possible.
2. Select a replacement per the Filterra® Activation P
ackage.
3. Prior to removing the plant from the container, ensure the soil moisture is sufficient to maintain the integrity of the root ball. If needed, pre
-wet the container plant.
4. Cut away any roots which are growing out of the
container drain holes.
5. Plant(s) should be carefully removed from the pot by gently pounding on the sides of the container with the fist to loosen root ball. Then carefully slide out. Do not lift plant(s) by trunk as this can break roots and cause soil to fall off. Extract the root ball in a horizontal position and support it to prevent it from breaking apart. Alternatively, the pot can be cut away to minimize root ball disturbance.
6. Excavate a hole with a diameter 4” greater than the root ball, gently place the plant(s).
7. Plant the tree/shrub/grass with the top of the root ball 1” above surrounding media to allow for settling.
8. All plants should have the main stem centered in the tree grate (where applicable) upon completion of installation.
9. Reinstall or add mulch to a depth of 3” per Contech’s mulch specifications for F
ilterra® systems.
www.ContechES.com/filterra | 800-338-1122
12 Maintenance Checklist
Filterra Inspection & Maintenance Log
Filterra System Size/Model: _____________________________Location: ____________________________________________ Drainage
System Failure Problem Conditions to Check Condition that Should Exist Actions Inlet
Excessive
sediment or trash
accumulation.
Accumulated sediments or
trash impair free flow of water
into Filterra.
Inlet should be free of
obstructions allowing free
distributed flow of water into
Filterra.
Sediments and/or trash should
be removed.
Mulch Cover Trash and floatable
debris accumulation.
Excessive trash and/or debris
accumulation.
Minimal trash or other debris
on mulch cover.
Trash and debris should be
removed and mulch cover raked
level. Ensure bark nugget mulch
is not used.
Mulch Cover “Ponding” of water
on mulch cover.
“Ponding” in unit could be
indicative of clogging due
to excessive fine sediment
accumulation or spill of
petroleum oils.
Stormwater should drain
freely and evenly through
mulch cover.
Recommend contact
manufacturer and replace mulch
as a minimum.
Vegetation Plants not growing
or in poor condition.
Soil/mulch too wet, evidence of
spill. Incorrect plant selection.
Pest infestation. Vandalism to
plants.
Plants should be healthy and
pest free. Contact manufacturer for advice.
Vegetation Plant growth
excessive.
Plants should be appropriate
to the species and location of
Filterra.
Trim/prune plants in accordance
with typical landscaping and
safety needs.
Structure Structure has visible
cracks.
Cracks wider than 1/2 inch
or evidence of soil particles
entering the structure through
the cracks.
Vault should be repaired.
Maintenance is ideally to be performed twice annually.
Date
Mulch &
Debris
Removed
Depth of
Mulch
Added
Mulch
Brand
Height of
Vegetation
Above
Grate
Vegetation
Species
Issues with
System Comments
1/1/17 5 – 5 gal
Buckets 3”
Lowe’s
Premium
Brown Mulch
4’ Galaxy
Magnolia
- Standing water in
downstream structure
- Removed blockage in downstream
structure
www.ContechES.com/filterra | 800-338-1122
13 Filterra Activation Package | Page 1
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
The Filterra system will be (or has been) delivered to you with protection in place to resist intrusion of construction related sediment which can contaminate the biofiltration media and result in inadequate system performance. These protection devices are intended as a best practice and cannot fully prevent contamination. It is the purchaser’s responsibility to provide adequate measures to prevent construction related runoff from entering the Filterra system.
Included with your purchase is Activation of the Filterra system by the manufacturer as well as a 1-year warranty from delivery of the system and a Final Site Assessment (assessment of unit condition, mulch replacement, debris removal, and pruning of vegetation) scheduled between 6 months and 1 year after Activation, upon request.
Activation of the Filterra system is a procedure completed by the manufacturer to place the system into working condition. This involves the following items:
• Removal of construction runoff protection devices
• Planting of the system’s vegetation (provided by the purchaser) • Placement of pretreatment mulch layer using mulch acceptable for use in Filterra systems.
Activation MUST be provided by the manufacturer to ensure proper site conditions are met for Activation, proper installation of the vegetation, and use of pretreatment mulch acceptable for use in Filterra systems. The purchaser should request Activation from Contech after the site is stabilized, but prior to turning over the site to the owner. Please allow 1-2 weeks to schedule Activation.
The purchaser must ensure that the site is acceptable for Filterra Activation. A checklist (included as page 3 of this document must be completed and submitted to the Contech Activation Coordinator. The minimum 4 requirements for Filterra Activation are as follows:
1. The purchaser must have sourced vegetation meeting the requirements outlined in “Plant Selection for Filterra Systems” starting on page 4 of this document.
FILTERRA® VAULT ACTIVATION PACKAGE
ENGINEERED SOLUTIONS
Appendix 1 – Filterra® Vault Activation Package
www.ContechES.com/filterra | 800-338-1122
14 Filterra Activation Package | Page 2
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
2. The site landscaping must be fully stabilized, i.e. full landscaping installed and some grass cover (not just straw and seed) is required to reduce sediment transport. Construction debris and materials should be removed from surrounding area.
3. Final paving must be completed. Final paving ensures that paving materials will not enter and contaminate the Filterra system during the paving process, and that the plant will receive runoff from the drainage area, assisting with plant survival for the Filterra system.
4. Where curb inlets are included as part of the Filterra system, Filterra throat opening should be at least 4” clear in order to ensure adequate capacity for inflow and debris.
www.ContechES.com/filterra | 800-338-1122
15 Filterra Activation Package | Page 3
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
Filterra® Vault Activation Checklist
Project Name: ________________________________________Company: ______________________________________________ Site Contact Name: _______________________________________ Site Contact Phone/Email: ____________________________ Site Owner/End User Name: _________________________Site Owner/End User Phone/Email: ____________________________ Preferred Activation Date: ___________________________________ (provide 2 weeks minimum from date this form is submitted) Site
Designation
Top Opening
Type
Final Pavement
Complete
Landscaping
Complete /
Grass Emerging
Construction
materials /
Piles / Debris
Removed
Throat Opening
Measures 4” Min.
Height
(where applicable)
Vegetation
Sourced by
Contractor
Tree Grate
Full Grate
(No tree opening)
Bioscape Vault
(Open Planter)
Verified Verified Verified Verified Species on FT Plant List
Container Grown
(15 gal. max)
4’ Tall Min. (Tree
grate units only)
____ Qty provided
Tree Grate
Full Grate
(No tree opening)
Bioscape Vault
(Open Planter)
Verified Verified Verified Verified Species on FT Plant List
Container Grown
(15 gal. max)
4’ Tall Min. (Tree
grate units only)
____ Qty provided
Tree Grate
Full Grate
(No tree opening)
Bioscape Vault
(Open Planter)
Verified Verified Verified Verified Species on FT Plant List
Container Grown
(15 gal. max)
4’ Tall Min. (Tree
grate units only)
____ Qty provided
Tree Grate
Full Grate
(No tree opening)
Bioscape Vault
(Open Planter)
Verified Verified Verified Verified Species on FT Plant List
Container Grown
(15 gal. max)
4’ Tall Min. (Tree
grate units only)
____ Qty provided
NOTE: A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection.
Attach additional sheets as necessary.
Signature Date
ENGINEERED SOLUTIONS
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16 Filterra Activation Package | Page 4
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
Planting Selection for Filterra® Vault Systems
All Filterra systems require vegetation for proper long-term performance. As indicated in the Activation Package, the Contractor is responsible for sourcing the proper vegetation prior to Activation. Contech or a Contech representative will install the vegetation during the Activation process.
Contractors should identify the Top Opening style for each Filterra requiring Activation on the Activation Checklist. Contech offers three types, which are detailed on page 5 of this document:
• Vault with Tree Grate
• Vault with Full Grate
• Bioscape / Open Planter
Contractors must ensure the vegetation meets the following 4 requirements:
1. Select plant(s) as specified in the engineering plans and specifications AND that are listed on Contech’s Configuration Specific Plant Lists**.
2. All plants MUST be container-grown in nursery containers no larger than 15 gallons. Crated and/or Ball/Burlap plants are NOT permitted.
3. For Vaults with Tree Grates, plant height must be 4’ Minimum, from soil surface to top of plant.
4. Provide plant quantities per the following guidance:
• Vault with Tree Grate – 1 per Tree Grate
• Vault with Full Grate – 4-5 Small or Extra Small Grasses per Full Grate • Bioscape – Quantities should be selected based on plant palette options found starting on page 6 of this document.
If Contech or Contech’s representative shows up for Activation and any of the 4 requirements above are not met, Activation cannot be performed and the Contractor will be billed a $1,500 Unprepared Site fee*.
Some additional vegetation recommendations for the best possible Activation and Installation are as follows:
• Select plant(s) with full root development but not to the point where root bound. • For Filterra systems with a Tree Grate, select plants with taller trunks. Lower branches can be pruned away provided there are sufficient branches above the grate for tree or shrub development. • For Filterra systems with a Tree Grate, plant(s) should have a single trunk at installation. • Plant species shall not have a mature height greater than 30 feet. ** In some cases, Contech may consider alternate plant species as approved by the Product Manager. Please list the plant name in the space below and submit this sheet to your Contech Activation Coordinator. If the plant species is approved, either the Product Manager or the Activation Coordinator will sign the form and return to you for inclusion with your Activation Checklist.
Requested Plant Species: ___________________________________________ Approved: _______________________________ Date: ____________________________________
www.ContechES.com/filterra | 800-338-1122
17 Filterra Activation Package | Page 5
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
Figure 1a. Filterra with Tree Grate Drawing
Figure 2a. Filterra with Full Grate Drawing
Figure 3a. Filterra Bioscape Vault Drawing
Figure 1b. Filterra with Tree Grate Photo (not yet planted) Figure 2b. Filterra with Full Grate Photo
Figure 3b. Filterra Bioscape Vault Photo
Filterra® Top Opening Examples
Filterra® Vault with Tree Grate
Filterra® Vault with Full Grate
Filterra® Bioscape Vault
www.ContechES.com/filterra | 800-338-1122
18 Filterra Activation Package | Page 6
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
Filterra® Bioscape Vault Plant Palettes
KEY: (refer to plant lists for species sizing)
4x4 Media Bay A.
3 A.
5 A.
6 A.
6 A.
9 A.
12 A.
15 A. 20 B. 6 C. 3 D. 2
B.
1 B.
2 B.
2 B.
2 B.
3 B.
3 B.
4 C.
1 C.
1 C.
1 D.
1 D.
1 D.
1 D.
1 D.
1 C.
1 C.
2 C.
2 C.
2 4x6/6x4 Media Bay
4x8/8x4 &
4.5x7.83/7.83x4.5
Media Bay
6x6 Media Bay
6x8/8x6 Media
Bay
6x10/10x6 &
8x8 Media Bay
6x12/12x6 Media
Bay
7x13/13x7/12x8 &
14x8 Media Bay
A. EXTRA SMALL GRASS
• Up to 2’ mature spread
• 1-2 gallon typical (1 gal. minimum)
B. SMALL GRASS/SHRUB
• 2’-4’ mature spread
• 1-7 gallon typical
C. MEDIUM SHRUB
• 4’-6’ mature spread
• 1-7 gallon typical
D. LARGE SHRUB OR EXTRA LARGE SHRUB OR TREE
• 6’ mature spread and greater, 30’ max. mature
height
• Up to 15 gallon maximum
NOTE: For larger vaults and in-ground
Filterra Bioscape systems, palettes can be
scaled (i.e. Qty 6 of the 22x8 Palette can be
used for a 1056 sf Filterra Bioscape).
MIX & MATCH SUBSTITUTION OPTIONS:
1 Large Shrub or Extra Large Shrub or Tree
• 2 Medium Shrubs
• 4 Small Grass/SHrubs
• 12 Extra Small Grasses
1 Medium Shrub
• 2 Small Grass/Shrubs
• 6 Extra Small Grasses
1 Small Grass/Shrub
• 3 Extra Small Grasses
www.ContechES.com/filterra | 800-338-1122
19 Filterra Activation Package | Page 7
* UNPREPARED SITE FEE NOTE : A charge of $1500.00 will be invoiced for each activation visit requested by customer where Contech determines that the site does not meet the conditions required for Activation AND/OR acceptable plants are not provided by the contractor. ONLY Contech authorized representatives can perform Activation of Filterra systems; unauthorized activations will void the system warranty and waive manufacturer supplied activation and final inspection. ®
A. 24
A. 28
A. 32
A. 36
B. 8
B. 8
B. 10
B. 10
C. 4
C. 4
C. 5
C. 5
D. 2
D. 2
D. 3
D. 3
16x8 & 15x9
Media Bay
18x8 Media Bay
20x8 Media Bay
22x8 Media Bay
Appendix 2 – Filterra® Tree Grate Opening Expansion Procedure The standard grates used on all Filterra configurations that employ Tree Grates are fabricated with a 6” opening that is designed with a breakaway section that can be removed, allowing the grate opening to be expanded to 12” as the tree matures and the trunk widens.
The following tools are required to expand the opening:
•
Mini sledgehammer (3 lb. or greater)
• Safety Glasses / Goggles
The following guidelines should be followed to properly expand the tree opening from 6” to 12”:
1. Remove the grate from the Filterra frame, place it flat on a hard surface, and support the
grate by stepping on the edge or using other
weighted items such as a few mulch bags if this is being done during a Filterra maintenance event. Put on safety glasses/goggles. Align the mini sledgehammer as shown in the figure to the left. The head of the sledgehammer should be aimed just inside the wide cast iron bar between the larger grate section and the breakaway section.
2. Repeatedly hit the grate at this spot with the mini sledgehammer.
3. After several hits, the breakaway section should snap cleanly off of the larger grate section. Reinstall the grate into the Filterra grate frame. R
ecycle or dispose of the breakaway section per local
guidelines.
Notes
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© 2023 Contech Engineered Solutions LLC, a QUIKRETE Company 9100 Centre Pointe Drive, Suite 400
West Chester, OH 45069
[email protected] | 800-338-1122
www.ContechES.com
ALL RIGHTS RESERVED. PRINTED IN THE USA.
NOTHING IN THIS CATALOG SHOULD BE CONSTRUED AS A WARRANTY. APPLICATIONS SUGGESTED HEREIN ARE DESCRIBED
ONLY TO HELP READERS MAKE THEIR OWN EVALUATIONS AND DECISIONS, AND ARE NEITHER GUARANTEES NOR WARRANTIES OF SUITABILITY FOR ANY APPLICATION. CONTECH MAKES NO WARRANTY WHATSOEVER, EXPRESS OR IMPLIED, RELATED TO THE APPLICATIONS, MATERIALS, COATINGS, OR PRODUCTS DISCUSSED HEREIN. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE ARE DISCLAIMED BY CONTECH.
SEE CONTECH’S CONDITIONS OF SALE (AVAILABLE AT WWW.CONTECHES.COM/COS) FOR MORE INFORMATION. ®
Bioretention Systems
ENGINEERED SOLUTIONS