CPC Report Appendix D Project WQMP_Part3 — Riverside City Council, April 21, 2026

APPENDIX D: PART 3
Project WQMP

STORMWATER POLLUTANT SOURCES/SOURCE CONTROL CHECKLIST
IF THESE SOURCES WILL BE ... THEN YOUR WQMP SHOULD INCLUDE THESE SOURCE CONTROL BMPs, AS APPLICABLE ON THE PROJECT SITE ... 1 2 3 4
Potential Sources of Permanent Controls-Show on Permanent Controls-List in WQMP Operational BMPs-lnclude in WQMP Runoff Pollutants WQMP Drawings Table and Narrative Table and Narrative □ K. Vehicle/Equipment □ Accommodate all vehicle □ State that no vehicle repair or In the Stormwater Control Plan, note Repair and equipment repair and maintenance maintenance will be done outdoors, that all of the following restrictions Maintenance indoors. Or designate an outdoor or else describe the required apply to use the site:
work area and design the area to features of the outdoor work area. □ No person shall dispose of, nor permit prevent run-on and runoff of □ State that there are no floor drains the disposal, directly or indirectly of stormwater. or if there are floor drains, note the vehicle fluids, hazardous materials, or □ Show secondary containment for agency from which an industrial rinsewater from parts cleaning into exterior work areas where motor waste discharge permit will be storm drains. oil, brake fluid, gasoline, diesel obtained and that the design meets □ No vehicle fluid removal shall be fuel, radiator fluid, acid-containing that agency's requirements. performed outside a building, nor on batteries or other hazardous □ State that there are no tanks, asphalt or ground surfaces, whether materials or hazardous wastes are used or stored. Drains shall not be containers or sinks to be used for inside or outside a building, except in installed within the secondary parts cleaning or rinsing or, if there such a manner as to ensure that any are, note the agency from which an spilled fluid will be in an area of containment areas. industrial waste discharge permit secondary containment. Leaking □ Add a note on the plans that states will be obtained and that the vehicle fluids shall be contained or either (1) there are no floor drains, design meets that agency's drained from the vehicle immediately. or (2) floor drains are connected to requirements. No person shall leave unattended drip wastewater pretreatment systems □ parts or other open containers prior to discharge to the sanitary containing vehicle fluid, unless such sewer and an industrial waste containers are in use or in an area of discharge permit will be obtained. secondary containment.

Refer to "Automotive Maintenance & Car
Care Best Management Practices for Auto
Body Shops, Auto Repair Shops, Car
Dealerships, Gas Stations and Fleet
Service Operations". Brochure can be
found at http:LLrdlood.orgLstorm:i,£aterL
Refer to Outdoor Cleaning Activities and
Professional Mobile Service Providers for
many of the Potential Sources of
Runoff Pollutants categories below.

Brochure can be found at
http: L Lrdlood.orgLstormwater L

Any drainage sumps on-site shall
□ feature a sediment sump to reduce
the quantity of sediment in
pumped water .
□ Avoid roofing, gutters, and trim
made of copper or other
unprotected metals that may leach
into runoff.

Include controls for other sources
as specified by local reviewer.

Appendix 9: O&M
Operation and Maintenance Plan and Documentation of Finance, Maintenance and Recording Mechanisms - 29 -
Recorder’s
(“Declarant”),

“A”,
Declarant has applied to the City of Riverside (“City”) for the construction

maintain the Best Management Practices (“BMPs”) as described in the approved project specific

WHEN RECORDED MAIL TO:

City Surveyor
City of Riverside
City Hall, 3900 Main Street
Riverside, CA 92522
Planning Case: TBD
For Office Use Only

COVENANT AND AGREEMENT

ESTABLISHING NOTIFICATION PROCESS AND RESPONSIBILITY FOR

WATER QUALITY MANAGEMENT PLAN IMPLEMENTATION AND MAINTENANCE

THIS COVENANT AND AGREEMENT FOR WATER QUALITY
MANAGEMENT PLAN IMPLEMENTATION AND MAINTENANCE is made and entered into this __ day of~-------~ 2 0 23, by _____________ _ with reference to the following facts:

A. Declarant is the fee owner of the real property ( the "Property") situated in the City of Riverside, County of Riverside, State of California, and legally described in Exhibit which is attached hereto and incorporated within by reference.

B.
of GP-2022-02467 located at 4618 Jones Avenue and 4663 Hedrick Avenue in Riverside C. As a condition of approval and prior to the map recordation and/or issuance of any permits, the City is requiring Declarant to execute and record an agreement stating that the future property owners shall be informed of the requirements to implement and Water Quality Management Plan.

D. Declarant intends by this document to comply with the conditions imposed by the City and to impose upon the Property mutually beneficial restrictions, conditions, covenants and agreements for the benefit of Property.

NOW, THEREFORE, for the purposes of complying with the conditions imposed by the City of Riverside for the approval of Planning Case TBD, Declarant hereby declares that the Property is and hereafter shall be held, conveyed, transferred, mortgaged, encumbered, leased, rented, used, occupied, sold and improved subject to the following declarations, limitations, covenants, conditions, restrictions and easements, all of which are imposed as equitable servitudes pursuant to a general plan for the development of the Property for the purpose of enhancing and protecting the value and attractiveness of the Property, and

or Declarant’s attorney’s

each Parcel thereof, in accordance with the plan for the improvement of the Property, and to comply with certain conditions imposed by the City for the approval of TBD and shall be binding and inure to the benefit of each successor and assignee in interest of each such party.

Any conveyance, transfer, sale, assignment, lease or sublease made by Declarant of a Parcel of the Property shall be and hereby is deemed to incorporate by reference all the provisions of the Covenant and Agreement including, but not limited to, all the covenants, conditions, restrictions, limitations, grants of easement, rights, rights-of-way, and equitable servitude contained herein.

1. This Covenant and Agreement hereby establishes a notification process for future individual property owners to ensure they are subject to and adhere to the Water Quality Management Plan implementation measures and that it shall be the responsibility of the Declarant, its heirs, successors and assigns to implement and maintain all Best Management Practices (BMPs) in good working order.

2. Declarant shall use its best efforts to diligently implement and maintain all BMPs in a manner assuring peak performance at all times. All reasonable precautions shall be exercised by Declarant, its heirs, successors, and assigns, in the removal and extraction of any material(s) from the BMPs and the ultimate disposal of the material(s) in a manner consistent with all relevant laws and regulations in effect at the time. As may be requested from time to time by the City, Declarant, its heirs, successors, and assigns shall provide the City with documentation identifying the material(s) removed, the quantity, and disposal destination.

3. In the event Declarant, or its heirs, successors or assigns, fails to undertake the maintenance contemplated by this Covenant and Agreement within twenty-one (21) days of being given written notice by the City, or fails to complete any maintenance contemplated by this Covenant and Agreement with reasonable diligence, the City is hereby authorized to cause any maintenance necessary to be completed and charge the entire cost and expense to the Declarant successors or assigns, including administrative costs, reasonable fees and interest thereon at the maximum rate authorized by the Civil Code from the date of the notice of expense until paid in full. As an additional remedy, the Public Works Director may withdraw any previous urban runoff-related approval with respect to the Property on which BMPs have been installed and/or implemented until such time as Declarant, its heirs, successors, or assigns, repays to City its reasonable costs incurred in accordance with this paragraph.

4. Any person who now or hereafter owns or acquires any right, title or interest in or to any parcel of the Property shall be deemed to have consented and agreed to every covenant, condition, restriction and easement contained herein.

5. In addition, each of the provisions hereof shall operate as covenants running with the land for the benefit of the Property and each Parcel thereof and shall inure to the benefit of all owners of the Parcels thereof, their successors and assigns in interest, and shall apply to and bind each successive owner of each Parcel, their successors and assigns in interest.

6. The terms of this Covenant and Agreement may be enforced by the City, its successors or assigns, and by any owner, lessee or tenant of the Parcels of the Property. attorneys’

Should the City or any owner, lessee or tenant bring an action to enforce any of the terms of this Covenant and Agreement, the prevailing party shall be entitled to costs of suit including reasonable fees.

7. Subject to the prior written approval of the City by its Public Works Director, any provision contained herein may be terminated, modified or amended as to all of the Property or any portion thereof. No such termination, modification or amendment shall be effective until there shall have been executed, acknowledged, and recorded in the Office of the Recorder of Riverside County, California, an appropriate instrument evidencing the same including the consent thereto by the City.

IN WITNESS WHEREOF, Declarant has caused this Covenant and Agreement to be executed as of the day and year first written above.

Name:

Title:

APPROVED AS TO FORM:

Name:

Deputy City Attorney

APPROVED AS TO CONTENT
Name: Gilbert M. Hernandez
Public Works Department:

EXIIIBITA
(Legal Description)

ACKNOWLEDGMENT
A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is attached, and not the truthfulness, accuracy, or validity of that document.

State of California
County of _______________ __,
On _____________ ~ before me, _____________ ~ a
notary public, personally appeared _________________ _, who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.

I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct.

WITNESS my hand and official seal.
___________ (SEAL)
Signature

I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct.

WITNESS my hand and official seal.
___________ (SEAL)
Signature
All BMP included as part of the project WQMP are required to be maintained through regular scheduled operation and maintenance (refer to Section 8, Post Construction BMP Requirements, in the TGD for WQMP). Fully complete Form 5-1 summarizing all BMP included in the WQMP. Attach additional forms as needed. The WQMP shall also include a detailed Operation and Maintenance Plan for all BMP and may require a Maintenance Agreement (consult the jurisdictions LIP). If a Maintenance Agreement is required, it must also be attached to the WQMP.

Non-Structural Source Control BMPs
N1: Education for
Property Owners,
Tenants and
Occupants
Owner/Lessee
Have educational and BMP materials
(attachments) available to distribute/review to
tenants, employees, and contractors. Employees
and contractors must be trained on and aware of
this WQMP
Information to be
given to owner/rep
upon sale and
annually
thereafter.

N2: Activity
Restrictions Owner/Lessee
Restrictions are to be presented to employees,
contractors, and tenants for activities that
contribute to stormwater pollution. Employees
and contractors shall be trained to monitor for
evidence of performed restricted activities.

Continuous
N3: SC-41 Common
Area Landscape
Management
Owner/Lessee
Maintenance trimming; mowing; weeding;
removal of litter; fertilizing; water conservation;
replacement of dead, diseased, or dying plants;
properly dispose of waste; minimize pesticide and
fertilizer use and apply in accordance with
governing regulations.

Bi-Weekly
N4: BMP
Maintenance Owner/Lessee
Identification of responsibility for
implementation of each non-structural BMP and
scheduled cleaning of all BMP structural facilities.

As required
N11: SC-41 Common
Area Litter Control Owner/Lessee Closing lids of waste receptacles. Keep trash receptacle area clean. Empty containers before
Weekly sweeping
and trash pick-up.

Operations and Maintenance Responsibility
for Post Construction BMP
Form 5-1 BMP Operation and Maintenance
(use additional forms as necessary)
BMP Reponsible Operation/ Maintenance
Party(s) Activities Required
Minimum Frequency
of Activities
6-1
they are full. Picking up litter and debris from
site.

Daily inspection of
trash receptacles.

N14: SC-44 Common
Area Catch Basin
Inspection
Owner/Lessee Remove waste and debris. Repair any damages.

Once every three
months, once
within 5 days of
October 1st, and
after every
rainstorm event.

N15:SC-43 Sweeping
of street and parking
structure
Owner/Lessee Sweep parking lot and properly dispose of trash and material.

Every two weeks,
and once within 5
days of October
1st.

Structural Source Control BMPs
S1: SD-13 Provide
storm drain system
stenciling and
signage
Owner/Lessee
All catch basins where applicable in paved areas,
will be marked or stenciled with Only Rain
Down the Storm Drain. This will be done in a
location that can be clearly seen by all and will
be routinely inspected and relabeled, as
necessary. Thereafter, the owner/ lessee shall
routinely inspect and re-label the catch basins,
as necessary
Catch basin labels
will be inspected
once annually
and relabeled as
necessary to
maintain
legibility.

S3: SD-32 Trash
Storage Areas Owner/Lessee
Closing lids of waste receptacles. Keep trash
receptacle area clean. Empty containers before
they are full. Picking up litter and debris from
site.

Weekly sweeping
and trash pick-
up. Daily
inspection of
trash receptacles.

S4: SD-12 Efficient
Irrigation Systems Owner/Lessee
Minimize timing and application methods for
watering project landscaping in common areas
to limit amount of non-storm water discharge.

Inspect irrigation system with landscaping
maintenance to ensure timers, shut off valves
and other automatic irrigation devices are
functioning adequately. Inspect system for
broken parts and replace as needed to prevent
leaks. BMP shall be implemented by the owner/
lessee, through the landscape maintenance
contractor.

Monthly with
landscaping
maintenance
activities.

S5 Finish grade of
landscaped areas at a
minimum of 1-2
Owner/Lessee Maintain vegetation height to ensure area has ponding capacity. Inspect area for standing
Monthly with
landscaping
maintenance
6-2
below top of curb,
sidewalk or
pavement
water, saturated soil or other nuisance
conditions. Repair as needed.
activities and
after irrigation or
storm events
Treatment BMPs
ADS-Flexstorm FTC
Insert Owner/Lessee
Empty filter bag, remove compacted silt, wring
PCP style bags to recover retained oils, dispose of
oil contaminated products and recovered oils in
accordance with EPA guidelines, inspect bags &
replace if needed.

Following rain
events greater
than ½, filter
inspections
minimum 3 times
per year, industrial
inspections 4
times per year.

Biotreatment BMP
Filterra
Owner/Lessee See attached maintenance manuals in Appendix 10: Educational Materials. As required
6-3
Appendix 10: Educational Materials
BMP Fact Sheets, Maintenance Guidelines and Other End-User BMP Information - 30-
FlexStorm Pure™
Inlet Filters
FlexStorm Pure inlet filters are the preferred choice for permanent inlet protection and stormwater runoff control. Constructed of stainless steel, FlexStorm Pure inlet filters will fit any drainage structure and are available with site-specific filter bags providing various levels of filtration.

Applications
• Carwashes
• Commercial
• Loading ramps
• Industrial
Features
• Custom stainless steel frames are configured to fit
into any drainage structure
• Flow and bypass rates meet specific inlet
requirements
• Works below grade with bypass to drain area if bag
is full
• Installed and maintained by one worker, without
additional equipment
///NY&.
• Gas stations
• Parking lots
• Dock drains
• Maintenance
Benefits
• Stainless steel frame provides extended service life
• Easily replaceable filter bags
• Meets stringent removal requirements:
- All bags rated >80% removal efficiency of street
sweep-size particles
- Optional FXP/PCP bags can be used for
hydrocarbon removal when required
FlexStorm Pure Inlet Filters Specification
Material and Performance
The filter is comprised of a stainless steel frame and a replaceable geotextile filter bag attached to the frame with a stainless steel locking band. The filter bag hangs suspended below the grate that shall allow full bypass flow into the drainage structure if the bag is completely filled with sediment. The standard woven polypropylene "FX" filters bags are rated for 200 gpm/sqft with a removal efficiency of 82% when filtering a USDA Sandy Loam sediment load. The post-construction PCP filter bags are rated for 137 gpm/sqft and have been third-party tested at 99% TSS removal.

Installation

1. Remove the grate from the inlet.

2. Clean debris from the ledges of the inlet.

3. Place the inlet filter onto the load bearing ledges of the structure.

4. Replace the grate and confirm it is not elevated more than 1/s" (3 mm).

Frequency of Inspections

1. Inspection should occur following rain events greater than½" (13 mm).

2. Filter inspections should occur a minimum of three times per year, and in snowfall affected regions, inspections prior to and after snowfall season.

3. Industrial application site inspections (loading ramps, wash racks & maintenance facilities) to be scheduled on a recurring basis no less than four times per year or as needed.

Maintenance Guidelines

1. Empty the filter bag manually or by industrial vacuum taking care not to damage the geotextile bag when more than half filled or during scheduled inspection period.

2. Remove compacted silt from sediment bag and flush with medium spray.

3. "PCP" style bags should be pressed or wrung to recover retained oils.

4. Oil skimmer pouches solidify and darken when saturated, indicating time for replacement.

5. Dispose of all oil-contaminated products and recovered oils in accordance with EPA guidelines. Oil skimmer pouches, since a solidifier, will not leach and can be disposed of directly.

6. Inspect and replace bag if torn or punctured.

Filter Bag Replacement

1. Remove the bag by loosening or cutting off clamping band.

2. Take the new correctly sized sediment bag and secure hose clamping band to the frame channel as previously removed.

3. Ensure bag is secure and there is no slack around perimeter.

ADS "Terms and Conditions of Sale" are available on the ADS website, www.adspipe.com.

ADS™, FlexStorm Pure™ and the Green Stripe are registered trademarks of Advanced Drainage Systems, Inc. © 2022 Advanced Drainage Systems, Inc. #10892 05/22 MH
adspipe.com
800-821-6710
Filterra® Maintenance Steps
Contech has created a network of Certified Maintenance Providers (CCMP’s) to provide maintenance on Filterra systems. To find a CCMP in your area please visit www.conteches.com/maintenance

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. Clean area around Filterra

6. Complete paperwork and record plant
height and width

ENGINEERED SOLUTIONS
@
filterra:

Bioretention Systems
A Growing Idea in Stormwater F1ltrat1on
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
~ filterra·
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.

CAST-IN-PLACE GUTTER AND THROAT

OPENING (BY CONTRACTOR PER

LOCAL STANDARDS)

THROAT PROTECTION DEVICE

DO NOT REMOVE - LEAVE IN PLACE

UNTIL SITE IS STABILIZED AND

FIL TERRA IS ACTIVATED
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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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□
□
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~ filterra·
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: ____________________________________
~ filterra·
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
.,
4 ~
• OUTU aT ..

I
!, .. --.
... ,L j .L~.Ll::==== L _ _l__ ____: _ _1
-----'
t
OFC~B
38" ~~TREE
ffiOflTF~CC
Of C.U~ti
GRAlc
(C1'¥T--IN)
PLAN"[ PROV!Oi;O

EIYCONTECH
(T'l'P I
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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
~ filterra·
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
~ filterra·
PDF 1/23 © 2023 Contech Engineered Solutions LLC, a QUIKRETE Company

ENGINEERED SOLUTIONS
Notes
___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ ___________________________________________________________________________________________________________ Filterra Vault
Owner’s Manual
(Precast Vault Configurations)

ENGINEERED SOLUTIONS
This Owner’s Manual applies to all precast Filterra Configurations, including Filterra Bioscape Vault and Filterra HC.
■
Bioretention Systems

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 Tree Grate Opening Expansion Procedure..... 19

ENGINEERED SOLUTIONS
~
fi lterra·
Bioretention Systems
www.ContechES.com/filterra | 800-338-11224
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 Filterra 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 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. Filterra throat opening should be at least 4” in order to ensure adequate capacity for inflow and debris.

The Filterra Activation Package 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. .. . :. .. . . '-
.. -.. ' . ~. .,.

CAST-IN-PLACE GUTTER AND THROAT _/ • • , •• ~:/', •• •.

OPENING (BY CONTRACTOR PER •• , . , :

LOCAL STANDARDS) .
' "
"

THROAT PROTECTION DEVICE

DO NOT REMOVE - LEAVE IN PLACE

UNTIL SITE IS STABILIZED AND

FILTERRA IS ACTIVATED
www.ContechES.com/filterra | 800-338-11226
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 | 800-338-11228
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 Report (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 | 800-338-112210

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 Widest 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 Package.

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 Filterra® systems.

Riverside City CouncilApril 21, 2026

Riverside City Council
April 21, 2026