Proprietary Stormwater Quality Treatment Devices

Accepted Devices

The following proprietary stormwater quality treatment devices are currently accepted for use in Sacramento County:

CONTECH Stormwater Solutions StormVault®
CONTECH Stormwater Solutions StormFilter® (1 gpm/ft², ZPG media)
CONTECH Stormwater Solutions StormFilter® (2 gpm/ft², ZPG media)
Filterra® Bioretention System (percolation rate = 50 in/hr)

Submittal Requirements

Site designers proposing to use proprietary stormwater quality treatment devices shall include the following items in the submittal and on the improvement plans (drawings to scale):

Sizing calculations
Plan view of device & appurtenances on the civil site plans
Section view of device & appurtenances in reference to other utilities
Detail drawings of device & appurtenances
Specifications and installation notes.

Currently, the City & County of Sacramento do not allow proprietary stormwater quality treatment devices to be installed in the public right-of-way or in areas where the local agency would be required to conduct maintenance. Other local agencies may or may not allow this; check with your permitting agency for verification.

Maintenance Covenants are required to ensure proper maintenance of the selected stormwater quality treatment device.

History

Since the late 1990's, the Sacramento Stormwater Quality Partnership has been conducting a study to investigate the performance of proprietary stormwater quality devices. In November 1999, they published the report “Investigation of Structural Control Measures for New Development”. The report documents the protocol that must be followed in order for a particular device to be accepted for use in the Sacramento area. Manufacturers have been invited on several occasions since then to submit data which could be reviewed for conformance with the protocol.

In addition to devices accepted using the Sacramento area protocol, the Sacramento Stormwater Quality Partnership (Partnership) will accept technologies with the Washington State Department of Ecology's General Use Level Designation for Basic (TSS) Treatment on a case by case basis. Refer to Ecology's Evaluation of Emerging Stormwater Treatment Technologies for more information on their technology evaluation program and protocols.

Note that no other proprietary treatment devices are approved at this time.

Updated February 5, 2010



SSQP Home Partners County of Sacramento City of Sacramento City of Citrus Heights City of Elk Grove City of Folsom City of Galt City of Rancho Cordova Joint Programs Documents/Brochures Training New Development IPM Tool Kit Mercury Public Events/Workshops Monitoring Program Websites River-Friendly Landscaping Waterwise Our Water Our World Contact Us	Proprietary Stormwater Quality Treatment Devices Accepted Devices The following proprietary stormwater quality treatment devices are currently accepted for use in Sacramento County: CONTECH Stormwater Solutions StormVault® CONTECH Stormwater Solutions StormFilter® (1 gpm/ft², ZPG media) CONTECH Stormwater Solutions StormFilter® (2 gpm/ft², ZPG media) Filterra® Bioretention System (percolation rate = 50 in/hr) Submittal Requirements Site designers proposing to use proprietary stormwater quality treatment devices shall include the following items in the submittal and on the improvement plans (drawings to scale): Sizing calculations Plan view of device & appurtenances on the civil site plans Section view of device & appurtenances in reference to other utilities Detail drawings of device & appurtenances Specifications and installation notes. Currently, the City & County of Sacramento do not allow proprietary stormwater quality treatment devices to be installed in the public right-of-way or in areas where the local agency would be required to conduct maintenance. Other local agencies may or may not allow this; check with your permitting agency for verification. Maintenance Covenants are required to ensure proper maintenance of the selected stormwater quality treatment device. History Since the late 1990's, the Sacramento Stormwater Quality Partnership has been conducting a study to investigate the performance of proprietary stormwater quality devices. In November 1999, they published the report “Investigation of Structural Control Measures for New Development”. The report documents the protocol that must be followed in order for a particular device to be accepted for use in the Sacramento area. Manufacturers have been invited on several occasions since then to submit data which could be reviewed for conformance with the protocol. In addition to devices accepted using the Sacramento area protocol, the Sacramento Stormwater Quality Partnership (Partnership) will accept technologies with the Washington State Department of Ecology's General Use Level Designation for Basic (TSS) Treatment on a case by case basis. Refer to Ecology's Evaluation of Emerging Stormwater Treatment Technologies for more information on their technology evaluation program and protocols. Note that no other proprietary treatment devices are approved at this time. Updated February 5, 2010