Certified Full Capture System Trash Treatment Control Devices

The information provided on this page has been developed by the State Water Resources Control Board. To facilitate access, CASQA is hosting this information on our website. The certification of all devices and multi-benefit treatment systems is determined solely by the State Water Board. Please direct all questions to State Water Board staff.

Notes:

1. This page is for information about Certified Full Capture System Trash Treatment Control Devices. You can view information about Certified Multi-Benefit Trash Treatment Systems here.
2. Scroll down to see two tables of certified devices:
1. Table 1 - Catch Basin Inserts and Other Devices
2. Table 2 - High Flow Capacity Trash Devices

Trash Provisions

In accordance with the Trash Provisions¹, all trash treatment control devices (Devices) installed after December 2, 2015 shall meet the Full Capture System definition² and be certified by the State Water Resources Control Board (State Water Board) Executive Director, or designee, prior to installation. The Devices included on this list are either: 1) new Devices certified by the State Water Board, or 2) grandfathered Devices from a list maintained by the San Francisco Regional Water Board prior to the adoption of the Trash Amendments. All new Device installations shall be designed according to the following criteria:

1. Appropriately sized to treat not less than the peak flowrate resulting from a 1-year, 1-hour storm event (design storm) or at least the same peak flows from the corresponding storm drain;
2. Do not bypass trash below the design storm under maximum operational loading conditions; and
3. Trap all particles that are 5 mm or greater up to the design flow³ or at least the same peak flows from the corresponding storm drain; and do not have a diversion structure present upstream such that a portion of the peak flow is not treated to trap all particles 5 mm or greater.

¹ Amendment to the Water Quality Control Plan for Ocean Waters of California to Control Trash and Part 1 Trash Provisions of the Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, And Estuaries of California adopted by the State Water Board.

² A Full Capture System is a treatment control, or series of treatment controls, including but not limited to, a multi-benefit project or a low-impact development control that traps all particles that are 5 mm or greater, and has a design treatment capacity that is either: of not less than the peak flow rate, Q, resulting from a one- year, one-hour storm in the subdrainage area, or b) appropriately sized to, and designed to carry at least the same flows as, the corresponding storm drain.

³ The region specific one-year, one-hour storm (or design flow) may be obtained from this document of National Oceanic and Atmospheric Precipitation Estimates.

Vector Accessibility

Depending on its design, certain Devices may impede the mosquito or vector control agency’s ability to (1) visually inspect the Device and/or storm vault for mosquito breeding, and (2) apply the appropriate chemical treatment. Moreover, some Devices may create a habitat for mosquitoes.

The Trash Provisions prohibit the installation of any non-certified full capture Device. The State Water Board will not certify a Device if it has not been verified by the Mosquito and Vector Control Association of California (MVCAC). In addition, the local mosquito or vector control agency should be contacted prior to installation of any certified Device to ensure the installation conforms with local inspection and treatment guidelines. Questions should be directed to the local vector control agency or to the MVCAC Review Team via email at: Trashtreatment@mvcac.org.

The right-hand column of the tables below provides the MVCAC verification date for each certified Device. The Device manufacturers that have not received MVCAC Review Team verification have been notified that their Device(s) will be removed (de-certified) from the certification list without such verification. As a result of a Device de-certification, municipalities that are considering purchasing, or have already purchased, such a Device are prohibited from installing the device as of the date of de-certification.

New Device Certification or Fact Sheet Update

To apply for certification of a new Device, or to update a grandfathered Device fact sheet, the Device owner shall submit an application/fact sheet in accordance with the Trash Treatment Control Device Certification and Fact Sheet Update Requirements. Upon determining that a Device application is complete and meets the definition of a trash full capture system, and is approved by the Mosquito Vector Control Association of California, the Executive Director Designee will place the Device on the State Water Board’s Certified Full Capture System List of Trash Treatment Control Devices. This list will also identify updates to grandfathered Device fact sheets that satisfy the requirements.

The Trash Treatment Control Device Certification and Fact Sheet Update Requirements is found on the Trash Implementation Program webpage.

Listing of any Device does not constitute an endorsement by the State Water Board. The Executive Director reserves the right to de-certify and remove any Device from this list that does not satisfy the requirements of the Trash Provisions, such as but not limited to when a Device is discontinued or is not approved by Mosquito Vector Control Association of California Review Team.

For questions regarding the applications or fact sheets in Table 1 or Table 2 below, please contact Leo Cosentini at (916) 341-5524 or via email at leo.cosentini@waterboards.ca.gov.

Certified Full Capture System List of Trash Treatment Control Devices (updated December 2021)

TABLE 1 - CATCH BASIN INSERTS AND OTHER DEVICES

TABLE 2 - HIGH FLOW CAPACITY TRASH DEVICES