Practice 17: Filtering Devices

The manufactured filtering devices listed on this page are approved by DEQ for use to meet the total phosphorus (TP) water quality requirements of Virginia Stormwater Management Program (VSMP) regulation.* The assigned Event Mean Concentration (EMC) percent TP removal efficiency may be manually added into the Virginia Runoff Reduction Method (VRRM) spreadsheets to demonstrate water quality compliance.

*DEQ does not endorse any device and does not provide assistance with device selection.

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BACKGROUND

DEQ Evaluations

The devices listed here have been approved by DEQ in accordance with Guidance Memo No. 21-2006, which went into effect on December 29, 2021.

For each approved manufactured treatment device (MTD), the following information is provided:

    • DEQ approval letter
    • Web link to view specifications and other product information
    • Vendor contact information
    • Information reviewed by DEQ.

    If you have questions regarding an evaluation, please contact DEQ’s Robert Cooper, P.E., at Robert.Cooper@deq.virginia.gov or 804-698-4033.

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Sizing Information

To obtain the water quality credit assigned to a manufactured treatment device (MTD), the device must be properly sized. The MTD vendor and design professional are responsible for properly sizing a specific device for a given project.

DEQ recommends that designers and reviewers contact the MTD vendor for specific information regarding the type and size of device needed for each specific project.

To determine the MTD size needed for a project:

    1. Calculate the treatment volume to the device (TvBMP). The calculated TvBMP can be obtained from the Virginia Runoff Reduction Method (VRRM) spreadsheets.
    2. Calculate the peak discharge of the obtained treatment volume (qpTv). DEQ’s preferred method to calculate the peak discharge for a BMP drainage area is described here.
    3. Work with the MTD vendor to ensure that the obtained peak discharge to the device (qpTv) is less than or equal to the maximum treatment flow rate (MTFR) of the device (qpTv < MTFR).

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FILTERING DEVICES AWARDED 50% TP REMOVAL EFFICIENCY

(listed alphabetically)
BioPodTM Biofilter System with StormMixTM Media
Approval letter from DEQ (October 22, 2018; Appendix A: Certification letters from
NJDEP and Washington State Department of Ecology).
Specifications for the MTD are available from the website:
https://oldcastleinfrastructure.com/.

Contact Information: Oldcastle Precast, Inc., DBA Oldcastle Infrastructure
Jay Holtz, P.E.
Director of Regulatory Management, Stormwater
5331 SW Macadam Ave, Suite 376
Portland, OR 97239
Mobile: 971-271-0796
E-mail: jay.holtz@oldcastle.com

Information reviewed by DEQ:
  • Item 1: MTD Registration
    (Note: The contact information for this device has changed since submission of the MTD Registration form. Address questions to Jay Holtz and use the following Web address:
    https://oldcastleinfrastructure.com/.)
  • Item 2: Overview (Appendix A)
  • Item 3: Drawings (Appendix B)
  • Item 4: NJDEP Certification Letter & NJCAT Verification Report (Appendix C)
  • Item 5: GULD from Washington Ecology (Appendix D)
  • Item 6: Post-GULD Monitoring Report (Appendix E)
  • Item 7: Inspection and Maintenance Guide (Appendix F)
  • Item 8: Individual Storm Reports (Appendix G)
  • Item 9: Washington Ecology GULD (added 1/19/2022)

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Filterra Bioretention Systems
Approval letter from DEQ (April 18, 2017).
Specifications for the MTD are available from the website:
https://www.conteches.com/.

Contact Information: Contech Engineered Solutions LLC
For Technical Matters:
Derek Berg
71 US Route 1, Suite F
Scarborough, ME 04074
Phone: 207-885-6174
Fax: 207-885-9825
Email: dberg@conteches.com

For Project Specific Questions:
Maryland Office
7037 Ridge Road, Suite 350
Hanover, MD 21076
Phone: 410-740-8490

Information reviewed by DEQ:
  • Item 1: MTD Registration
  • Item 2: Sizing Fact Sheet
  • Item 3: Fayetteville Project Report
  • Item 4: Washington Ecology GULD (added 12/31/2021)

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Jellyfish® Filter
Approval letter from DEQ (July 3, 2014).
Specifications for the MTD are available from the website:
https://www.conteches.com/.

Contact Information: Contech Engineered Solutions LLC
For Technical Matters:
Derek Berg
71 US Route 1, Suite F
Scarborough, ME 04074
Phone: 207-885-6174
Fax: 207-885-9825
Email: dberg@conteches.com

For Project Specific Questions:
Maryland Office
7037 Ridge Road, Suite 350
Hanover, MD 21076
Phone: 410-740-8490

Information reviewed by DEQ:
  • Item 1: MTD Registration
  • Item 2: Sizing Criteria
  • Item 3: NJCAT Technology Verification Report
  • Item 4: Solutions Guide
  • Item 5: Washington Ecology GULD (added 12/31/2021)

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Kraken Stormwater Filtration Systems
Approval letter from DEQ (January 16, 2020).
Specifications for the MTD are available from the website:
https://www.biocleanenvironmental.com/.

Contact Information: Bio Clean Environmental Services, Inc. — A Forterra Company
Chris French
Regional Sales Manager
10364 Design Road
Ashland, VA 23005
Cell: 804-466-2099
E-mail: chris.french@forterrabp.com

Information reviewed by DEQ:
  • Item 1: Cover letter
  • Item 2: MTD Registration
    (Note: The contact address for this device has changed since submission of the MTD Registration form. Address questions to Chris French.)
  • Item 3: Brochure
  • Item 4: Washington Ecology GULD for Basic (TSS) and Phosphorus
  • Item 5: Application for Conditional Use Level Designation

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Modular Wetland System Linear (MWS-Linear)
Approval letter from DEQ (July 3, 2014).
Specifications for the MTD are available from the website:
https://www.biocleanenvironmental.com/.

Contact Information: Bio Clean Environmental Services, Inc. — A Forterra Company
Chris French
Regional Sales Manager
10364 Design Road
Ashland, VA 23005
Cell: 804-466-2099
Email: chris.french@forterrabp.com

Information reviewed by DEQ:
  • Item 1: MTD Registration
    (Note: The contact information for this device has changed since submission of the MTD Registration form. Address questions to Chris French.)
  • Item 2: Warranty (Appendix A)
  • Item 3: Maintenance Documents (Appendix B)
    • Continuation of Maintenance Documents (Appendix B)
  • Item 4: WSDOE GULD for Basic, Enhanced and Phosphorus Treatment (Appendix C)
  • Item 5: TAPE GULD Approvals and Ortho-Phosphorus Data (Appendix D)
  • Item 6: Sizing Table (Appendix E)
  • Item 7: TER 2014 Summary (Appendix F: Executive Summary, Introduction, Sampling Procedures)
    • Continuation of TER 2014 Summary (Appendix F: Performance Evaluation, Conclusions, References)
  • Item 8: Letter Re: Pre-filter Media for TAPE Testing and Draft TER (2013)
  • Item 9: Washington Ecology GULD (added 12/31/2021)

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StormGarden® Biofiltration System
Approval letter from DEQ (July 11, 2019).
Specifications for the MTD are available from the website:
https://www.rotondo-es.com/.

Contact Information: Rotondo Environmental Solutions
John Rotondo
2560 Huntington Ave., Suite 303
Alexandria, VA 22303
Phone: 703-212-4830
Email: john@rotondo-es.com

Information reviewed by DEQ:
  • Item 1: Cover letter
  • Item 2: MTD Registration
  • Item 3: Washington Ecology GULD approval
  • Item 4: TER for TAPE Field Study
  • Item 5: Sizing Calculations
  • Item 6: Technical Memorandum: StormGarden Infiltration Testing
  • Item 7: Pollutant Removal Efficiency Test
  • Item 8: Sil-Co-Sil 106 Particle Size Distribution
  • Item 9: Maintenance Procedures & Representative Maintenance Logs
  • Item 10: Washington Ecology GULD (added 12/31/2021)

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The Stormwater Management StormFilter® with Phosphosorb media
Approval letter from DEQ (August 28, 2014).
Specifications for the MTD are available from the website:
https://www.conteches.com/.

Contact Information: Contech Engineered Solutions LLC
For Technical Matters:
Derek Berg
71 US Route 1, Suite F
Scarborough, ME 04074
Phone: 207-885-6174
Fax: 207-885-9825
Email: dberg@conteches.com

For Project Specific Questions:
Maryland Office
7037 Ridge Road, Suite 350
Hanover, MD 21076
Phone: 410-740-8490

Information reviewed by DEQ:
  • Item 1: MTD Registration
  • Item 2: StormCon 2009 Paper
  • Item 3: Field Verification of Performance Report
  • Item 4: Mitchell Community College Field Evaluation Report
  • Item 5: Washington Ecology GULD (added 12/31/2021)

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Up-Flo Filter® with Ribbon
Approval letter from DEQ (May 13, 2019).
Specifications for the MTD are available from the website:
https://www.hydro-int.com/en.

Contact Information: Hydro International
Phillip Taylor, CPSWQ
Technical Product Manager
Phone: 608-205-4441
Mobile: 608-358-1194
Email: ptaylor@hydro-int.com

Information reviewed by DEQ:

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FILTERING DEVICES AWARDED 40% TP REMOVAL EFFICIENCY

(listed alphabetically)
Aqua-Filter Stormwater Filtration System
Approval letter from DEQ (August 18, 2014).
Specifications for the MTD are available from the website:
https://www.aquashieldinc.com/.

Contact Information: AquaShield, Inc.
Mark Miller
2733 Kanasita Drive, Suite 111
Chattanooga, TN 37343
Toll-free: 888-344-9044, Ext. 1766
Direct Phone: 423-468-1766
Fax: 423-826-2112
Email: mmiller@aquashieldinc.com

Information reviewed by DEQ:
  • Item 1: Cover Letter
  • Item 2: MTD Registration
  • Item 3: NJCAT Field Technology Verification Report (November 2013)
  • Item 4: NJDEP Certification Letter
  • Item 5: Inspection & Maintenance Manual
  • Item 6: Warranty
  • Item 7: NJDEP Certification Letter (added 1/19/2022)

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EcoPure BioFilter
Approval letter from DEQ (December 23, 2020).
Specifications for the MTD are available from the website:
https://www.adspipe.com/.

Contact Information: Advanced Drainage Systems, Inc.
Travis Dorman
3707 Bloomer Springs Rd
Elkton, VA 22827
Phone: 540-526-6045
Email: travis.dorman@adspipe.com

Information reviewed by DEQ:
  • Item 1: MTD Registration
  • Item 2: NJCAT Technology Verification Report (June 2020)
  • Item 3: NJDEP Certification Letter
  • Item 4: Maintenance Guide
  • Item 5: NJDEP Certification Letter (added 1/19/2022)

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HydroFilter
Approval letter from DEQ (August 11, 2021).
Specifications for the MTD are available from the website:
https://hydroworks.com/.

Contact Information: Hydroworks, LLC
Graham Bryant
257 Cox Street
Roselle, NJ 07203
Phone: 848-235-5950 ext. 111
Fax: 888-783-7271
Email: gbryant@hydroworks.com

Information reviewed by DEQ:
  • Item 1: Cover Letter
  • Item 2: MTD Registration
  • Item 3: NJDEP Certification Letter (Appendix 1)
  • Item 4: NJCAT Technology Verification Report (Appendix 2)
  • Item 5: Operations and Maintenance Manual Design Manual (Appendix 3)

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StormKleener Filter Cartridge System
Approval letter from DEQ (July 3, 2018).
Specifications for the MTD are available from the website:
https://www.lane-enterprises.com/.

Contact Information: Lane Enterprises
3905 Hartzdale Drive, Suite 514
Camp Hill, PA 17011

For Project Specific Questions:
Ranee Buck
Phone: 717-761-8175
Email: rbuck@lane-enterprises.com

Information reviewed by DEQ:
  • Item 1: Cover Letter
  • Item 2: MTD Registration
    (Note: The contact information for this device has changed since submission of the MTD Registration form. Address questions to Ranee Buck.)
  • Item 3: NJCAT Technology Verification (May 2018)
  • Item 4: NJDEP Certification Letter
  • Item 5: Design Manual

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The Stormwater Management StormFilter® with ZPG media
Approval letter from DEQ (July 3, 2014).
Specifications for the MTD are available from the website:
https://www.conteches.com/.

Contact Information: Contech Engineered Solutions LLC
For Technical Matters:
Derek Berg
71 US Route 1, Suite F
Scarborough, ME 04074
Phone: 207-885-6174
Fax: 207-885-9825
Email: dberg@conteches.com

For Project Specific Questions:
Maryland Office
7037 Ridge Road, Suite 350
Hanover, MD 21076
Phone: 410-740-8490

Information reviewed by DEQ:
  • Item 1: MTD Registration
  • Item 2: Lake Stevens Study Report
  • Item 3: ETV Report
  • Item 4: Maintenance Fact Sheet
  • Item 5: Solutions Guide
  • Item 6: Washington Ecology GULD (added 12/31/2021)

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