The hydrodynamic 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. 14-2009 (published May 15, 2014).
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:
- Calculate the treatment volume to the device (TvBMP). The calculated TvBMP can be obtained from the Virginia Runoff Reduction Method (VRRM) spreadsheets.
- 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.
- 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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HYDRODYNAMIC DEVICES AWARDED 25% TP REMOVAL EFFICIENCY
- CrystalClean Separator-Single Vault
- Approval letter from DEQ (June 29, 2015).
- Specifications for the MTD are available from the website:
http://crystalstream.com/.- Contact Information: CrystalStream Technologies
- John Moll
2090 Sugarloaf Parkway, Suite 245
Lawrenceville, GA 30045
Phone: 800-748-6945
Fax: 770-979-6954
E-mail: johnmoll@crystalstream.com
- Information reviewed by DEQ:
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- John Moll
HYDRODYNAMIC DEVICES AWARDED 20% TP REMOVAL EFFICIENCY
- (listed alphabetically)
- Aqua-Swirl® Stormwater Treatment System
- Approval letter from DEQ (August 13, 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
E-mail: mmiller@aquashieldinc.com
- Information reviewed by DEQ:
- Item 1: Cover Letter
- Item 2: MTD Registration
- Item 3: NJCAT Technology Verification Report
- Item 4: NJCAT Summary Letter
- Item 5: NJDEP Certification Letter
- Item 6: WASDOE GULD for Pretreatment and CULD for Basic Treatment
- Item 7: Inspection and Maintenance Manual
- Item 8: Warranty
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- Mark Miller
- BaySaver Barracuda
- Approval letter from DEQ (November 8, 2017).
- Specifications for the MTD are available from the website:
https://baysaver.com.- Contact Information: Baysaver Technologies LLC
- Travis Dorman
1030 Deer Hollow Drive
Mount Airy, MD 21771
Phone: 540-526-6045
Fax: 866-802-2641
Email: travis.dorman@ads-pipe.com
- Information reviewed by DEQ:
- Item 1: MTD Registration
- Item 2: NJCAT Technology Verification Report
- Item 3: NJDEP Certification Letter
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- Travis Dorman
- BaySeparatorTM
- Approval letter from DEQ (August 14, 2014).
- Specifications for the MTD are available from the website:
https://baysaver.com.- Contact Information: Baysaver Technologies LLC
- Brian Rustia
5941 Innisvale Drive
Fairfax Station, VA 22039
Phone: 866-405-9292
E-mail: brian.rustia@ads-pipe.com
- Information reviewed by DEQ:
- Item 1: Cover Letter
- Item 2: MTD Registration
- Item 3: Schematics
- Item 4: MDE Letter
- Item 5: NJDEP Certification Letters
- Item 6: Maintenance Manual
- Item 7: NJCAT Technology Verification Report
- Item 8: WDOE Technical Evaluation Report (Woodinville site)
- Item 9: ETV Report
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- Brian Rustia
- The Cascade SeparatorTM
- Approval letter from DEQ (November 27, 2019).
- Specifications for the MTD are available from the website:
http://www.conteches.com/.- Contact Information: Contech Engineered Solutions LLC
- For Regulatory Matters:
Jacob Dorman
7037 Ridge Road, Suite 350
Hanover, MD 21076
Phone: 757-374-4321
Fax: 410-740-8492
Email: jdorman@conteches.com
- For Project Specific and Design Questions:
Baltimore, Maryland Office
7037 Ridge Road, Suite 350
Hanover, MD 21076
Phone: 410-740-8490
- Information reviewed by DEQ:
- Item 1: MTD Registration
- Item 2: NJDEP Certification Letter
- Item 3: NJCAT Technology Verification Report
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- For Regulatory Matters:
- Continuous Deflective Separator (CDS)
- Approval letter from DEQ (July 9, 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: WASDOE GULD for Pretreatment and PULD for Oil Control
- Item 3: Application: GULD for Pretreatment and CULD for Oil Treatment
- Item 4: Independent Review of Evaluation Testing for Online Application in NJ
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- For Technical Matters:
- Downstream Defender
- Approval letter from DEQ (September 4, 2014).
- Specifications for the MTD are available from the website:
https://www.hydro-int.com/en.- Contact Information: Hydro International
- Phillip Taylor
Technical Product Manager
Phone: 608-205-4441
Mobile: 608-358-1194
Email: ptaylor@hydro-int.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 Phillip Taylor.)
- Item 3: Fact Sheet
- Item 4: HX Guide
- Item 5: Schematics
- Item 6: ME DEP Letter
- Item 7: WASDOE GULD for Pretreatment (TSS) and PULD for Basic (TSS) and Oil Treatment
- Item 8: NJDEP Certification Letter
- Item 9: City of Indianapolis Selection Guide
- Item 10: ME DEP Testing Report
- Item 11: NJCAT Technology Verification Report
- Item 12: Operation and Maintenance Manual
- Item 13: Report Sections from Onondaga Lake Project
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- Phillip Taylor
- Dual Vortex Separator (DVS)
- Approval letter from DEQ (November 18, 2015).
- Specifications for the MTD are available from the website:
https://oldcastleinfrastructure.com/.- Contact Information: Oldcastle Stormwater Solutions
- 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.)
- Item 2: NJDEP Certification Letter
- Item 3: NJCAT Technology Verification Report
- Item 4: Inspection and Maintenance Guide
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- Jay Holtz, P.E.
- First Defense
- Approval letter from DEQ (September 4, 2014).
- Specifications for the MTD are available from the website:
https://www.hydro-int.com/en.- Contact Information: Hydro International
- Phillip Taylor
Technical Product Manager
Phone: 608-205-4441
Mobile: 608-358-1194
Email: ptaylor@hydro-int.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 Phillip Taylor.)
- Item 3: Fact Sheet
- Item 4: Schematics
- Item 5: ME DEP Letter
- Item 6: City of Indianapolis Selection Guide
- Item 7: ME DEP Testing Report
- Item 8: Washout Testing Report
- Item 9: Operation and Maintenance Manual
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- Phillip Taylor
- Hydroguard
- Approval letter from DEQ (August 29, 2014).
- Specifications for the MTD are available from the website:
http://www.hydroworks.com/.- Contact Information: Hydroworks, LLC
- Graham Bryant
50 S. 21st Street
Kenilworth, NJ 07033
Phone: 888-290-7900
Fax: 888-783-7271
Email: gbryant@hydroworks.com
- Information reviewed by DEQ:
- Item 1: Cover Letter
- Item 2: MTD Registration
- Item 3: Fact Sheet
- Item 4: Warranty
- Item 5: Alden Verification Testing Report
- Item 6: NJCAT Technology Verification Report
- Item 7: Letters of Approval/Certification (NJDEP; WI Department of Commerce; ConnDOT; MA STEP; City of Wichita, KS; City of Virginia Beach, VA; Montgomery County, MD; Ontario Provincial Standards, Products Management Committee)
- Continuation of Letters of Approval/Certification (NETE – Ministry of Environment, Ontario, Canada)
- Item 8: Operation and Maintenance Manual
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- Graham Bryant
- HydroStorm
- Approval letter from DEQ (December 7, 2018).
- Specifications for the MTD are available from the website:
http://www.hydroworks.com/.- Contact Information: Hydroworks, LLC
- Graham Bryant
136 Central Ave, FL2
Clark, NJ 07066
Phone: 848-235-5950
Fax: 888-290-7900
Email: gbryant@hydroworks.com
- Information reviewed by DEQ:
- Item 1: MTD Registration
- Item 2: Brochure (sizing)
- Item 3: NJDEP Certification Letter
- Item 4: NJCAT Verification Letter
- Item 5: NJCAT Report
- Item 6: ETV Canada Verification Statement
- Item 7: ISO 14034 Verification Report
- Item 8: Alden Testing Compliance Letter
- Item 9: Alden Testing Report (NJDEP Protocol)
- Item 10: Operations and Maintenance Manual
- Item 11: Sizing Software Program (see manufacturer website)
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- Graham Bryant
- Nutrient Separating Baffle Box®
- Approval letter from DEQ (December 7, 2018).
- Specifications for the MTD are available from the website:
https://oldcastleinfrastructure.com/.- Contact Information: Oldcastle Stormwater Solutions
- Jay Holtz, P.E.
Director of Regulatory Management, Stormwater
5331 SW Macadam Ave, Suite 376
Portland, OR 97239
Mobile: 971-271-0796
Email: jay.holtz@oldcastle.com
- Information reviewed by DEQ:
- Item 1: Cover Pages
- Item 2: MTD Registration
- (Note: The contact information for this device has changed since submission of the MTD Registration form. Address questions to Jay Holtz. Page numbers mentioned in MTD Registration do not correspond to submitted document.)
- Item 3: Request for Inclusion on Product List of Ohio DOT
- Item 4: Document by Tom Happel, President of Suntree Technologies
- Item 5: Sizing Chart
- Item 6: AET Report: NJDEP Hydrodynamic Protocol Evaluation with 100 µm Particles
- Item 7: NJCAT Verification Letter (July 2013)
- Item 8; NJCAT Technology Verification Report (June 2013)
- Item 9: NJCAT Technology Verification Report (October 2016)
- Item 10: NJCAT Verification Letter (April 2016)
- Item 11: NJDEP Certification Letter (November 2016)
- Item 12: Operation, Maintenance, Inspection and Cleaning Manual – New Jersey
- Item 13: AET Tech Report: Treatment Capacity Verification
- Item 14: City of Indianapolis Letter (Marion County District Approval)
- Item 15: Universal Engineering Sciences Field and Laboratory Reports
- Item 16: Operation, Maintenance, Inspection and Cleaning Manual
- Item 17: Specifications
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- Jay Holtz, P.E.
- SciClone Hydrodynamic Separator
- Approval letter from DEQ (March 8, 2018).
- Specifications for the MTD are available from the website:
https://www.biocleanenvironmental.com/.- Contact Information: Bio Clean — 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: Cover Letter and Table of Contents
- Item 2: MTD Registration (Section A)
- (Note: The contact information for this device has changed since submission of the MTD Registration form. Address questions to Chris French.)
- Item 3: SC-4 Cut Sheet (Section B)
- Item 4: Brochure (Section C)
- Item 5: Warranty (Section D)
- Item 6: NJCAT Technology Verification (112 Micron) (Section E)
- Item 7: NJCAT Technology Verification and NJDEP Approval (Section F)
- Item 8: O&M Manual (Section G)
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- Chris French
- SiteSaver®-4 Hydrodyamic Separator
- Approval letter from DEQ (June 7, 2018).
- Specifications for the MTD are available from the website:
https://stormtrap.com/.- Contact Information: StormTrap
- Dan Fajman
1287 Windham Parkway
Romeoville, IL 60450
Phone: 815-341-9890
Email: dfajman@stormtrap.com
- Information reviewed by DEQ:
- Item 1: Cover Letter
- Item 2: MTD Registration
- Item 3: NJDEP Approval Letter (Appendix A)
- Item 4: Warranty (Appendix B)
- Item 5: NJCAT Testing Report – June 2017 (Appendix C)
- Item 6: Operations & Maintenance Manual (Appendix D)
- Item 7: Design Drawings (Appendix E)
- Item 8: Material Specifications (Appendix F)
- Item 9: Installation Manual & Installation Photographs (Appendix G)
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- Dan Fajman
- Stormceptor® OSR
- Approval letter from DEQ (August 13, 2014).
- Specifications for the MTD are available from the website:
https://www.conteches.com/.- Contact Information: Contech Engineered Solutions LLC
- Jacob Dorman
7037 Ridge Rd #350
Hanover, MD 21076
Phone: 757-374-4321
Email: jdorman@conteches.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 Jacob Dorman.)
- Item 2: Fact Sheet
- Item 3: NJCAT Technology Verification Report
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- Jacob Dorman
- Stormceptor® STC
- Approval letter from DEQ (August 13, 2014).
- Specifications for the MTD are available from the website:
https://www.conteches.com/.- Contact Information: Contech Engineered Solutions LLC
- Jacob Dorman
7037 Ridge Rd #350
Hanover, MD 21076
Phone: 757-374-4321
Email: jdorman@conteches.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 Jacob Dorman.)
- Item 2: Fact Sheet
- Item 3: TARP Technical Sheet
- Item 4: Testing Summary (Westwood, Mass.)
- Item 5: Virginia Transportation Research Council Report
- Item 6: Maintenance Fact Sheet
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- Jacob Dorman
- StormPro
- Approval letter from DEQ (January 27, 2015).
- Specifications for the MTD are available from the website:
https://www.env21.com/.- Contact Information: Environment 21, LLC
- Dino Pezzimenti
8713 Read Road/P.O. Box 55
East Pembroke, NY 14056-0055
Phone: 585-815-4714
Fax: 585-815-4715
E-mail: dino.pezzimenti@env21.com
- Information reviewed by DEQ:
- Item 1: MTD Registration
- Item 2: Sizing Chart and Schematics
- Item 3: NJCAT Letter
- Item 4: NJCAT Technology Verification Report
- Item 5: Maintenance Document
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- Dino Pezzimenti
- Storm Water Quality Unit
- Approval letter from DEQ (August 29, 2014).
- Specifications for the MTD are available from the website:
https://www.ads-pipe.com/en/.- Contact Information: Advanced Drainage Systems, Inc.
- Greg Spires, PE
4640 Trueman Boulevard
Hilliard, OH 43026
Phone: 614-325-0032
Email: gregory.spires@ads-pipe.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 Greg Spires.)
- Item 2: UNH Field Verification Testing Report
- Item 3: Alden Laboratory TSS Removal Test Report
- Item 4: MASTEP Technology Review
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- Greg Spires, PE
- Terre Kleen™ Hydrodynamic Separator
- Approval letter from DEQ (July 9, 2014).
- Specifications for the MTD are available from the website:
https://www.terrehill.com/stormwater.- Contact Information: Terre Hill Concrete Products t/a Terre Hill Stormwater Systems
- Gene LaManna
P.O. Box 10
Terre Hill, PA 17581
Phone: 717-445-3111
Fax: 717-445-0242
Email: glamanna@terrehill.com
- Information reviewed by DEQ:
- Item 1: MTD Registration
- Item 2: NJDEP Certification Letter (Exhibit 1)
- Item 3: Optional Online Installation Re-entrainment/Scour Testing Report, 2011 report (Exhibit 2)
- Item 4: Warranty (Exhibit 3)
- Item 5: Alden Laboratory Lab Report, 2008 report (Exhibit 4)
- Item 6: NJCAT Technology Verification Report and Addendum Report (Exhibit 5)
- Item 7: Maintenance Instructions (Exhibit 6)
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- Gene LaManna
- V2B1
- Approval letter from DEQ (July 9, 2014).
- Specifications for the MTD are available from the website:
https://www.env21.com/.- Contact Information: Environment 21, LLC
- Dino Pezzimenti
8713 Read Road P.O. Box 55
East Pembroke, NY 14056-0055
Phone: 585-815-4714
Fax: 585-815-4715
E-mail: dino.pezzimenti@env21.com
- Information reviewed by DEQ:
- Item 1: MTD Registration
- Item 2: Sizing Table and Schematic
- Item 3: NJDEP Certification Letter
- Item 4: NJCAT Technology Verification Report
- Item 5: Maintenance Document
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- Dino Pezzimenti
- The Vortechs® System
- Approval letter from DEQ (July 9, 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:
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- For Technical Matters: