Practice 16: Hydrodynamic Devices – Virginia Stormwater BMP Clearinghouse

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 (Tv_BMP). The calculated Tv_BMP can be obtained from the Virginia Runoff Reduction Method (VRRM) spreadsheets.
Calculate the peak discharge of the obtained treatment volume (q_pTv). 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 (q_pTv) is less than or equal to the maximum treatment flow rate (MTFR) of the device (q_pTv < 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:

Item 1: MTD Registration
Item 2: ETV Report

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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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BaySaver Barracuda

Approval letter from DEQ (November 8, 2017).

Specifications for the MTD are available from the website:
https://www.adspipe.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@adspipe.com

Information reviewed by DEQ:

Item 1: MTD Registration
Item 2: NJCAT Technology Verification Report
Item 3: NJDEP Certification Letter

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BaySeparator^TM

Approval letter from DEQ (August 14, 2014).

Specifications for the MTD are available from the website:
https://www.adspipe.com/.

Contact Information: Baysaver Technologies LLC

Jim Clark, P.E.
12347 Indigo Springs Court
Bristow, VA 20136
Phone: 240-463-0124
E-mail: james.clark@adspipe.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 Jim Clark and use the Web address: https://www.adspipe.com/.)
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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The Cascade Separator^TM

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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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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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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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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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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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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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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Jensen Deflective Separator (JDS)

Approval letter from DEQ (March 9, 2021).
Specifications for the MTD are available from the website:
https://www.jensenprecast.com/water-resources/.

Contact Information: Jensen Enterprises

Walter Stein
521 Dunn Cir
Sparks, NV 89431
Phone: (775) 352-6336
Email: wstein@jensenprecast.com

Information reviewed by DEQ:

Item 1: Cover Letter
Item 2: MTD Registration
Item 3: NJCAT Verification Report
Item 4: NJDEP Certification Letter
Item 5: Operations and Maintenance Manual
Item 6: Brochure

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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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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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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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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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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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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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Storm Water Quality Unit

Approval letter from DEQ (August 29, 2014).

Specifications for the MTD are available from the website:
https://www.adspipe.com/.

Contact Information: Advanced Drainage Systems, Inc.

Greg Spires, PE
4640 Trueman Boulevard
Hilliard, OH 43026
Phone: 614-325-0032
Email: gregory.spires@adspipe.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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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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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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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:

Item 1: MTD Registration
Item 2: NJCAT Technology Verification Report
Item 3: Maintenance Document

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