Supplemental Environmental Projects

Supplemental Environmental Projects (SEPs)


What is a Supplemental Environmental Project?

Supplemental Environmental Projects, or SEPs, allow a discharger to undertake an environmentally beneficial project as restitution for polluting water under the Regional Water Quality Control Board (Water Board)’s enforcement process. For example, an unauthorized sewage or chemical spill into the Bay or a creek could result in a Water Board enforcement action and monetary fines known as Administrative Civil Liabilities (ACLs) levied against the discharger. The discharger may elect to suspend part of the fine by undertaking one or more Supplemental Environmental Projects. SEPs must be related to the location or nature of the violation and should remediate or reduce the probable overall environmental or public health impacts or risks to which the violation contributed, or reduce the likelihood that similar violations will occur in the future.

In the last few years, a number of SEP projects have been private sewer lateral improvement grant/loan funds; SEPs typically go to water quality, restoration, or habitat improvement projects.


SFEP provides project oversight for active SEPs, to ensure that projects are completed according to agreements between the Water Board and dischargers. SFEP also assists in connecting projects to potential SEP opportunities.

Considering Undertaking an SEP? Use This List of Potential Projects

A list of potential projects is available here.

If you’re considering any of these projects and would like further information, please contact Adrien Baudrimont (SFEP).

How to Get Your Project Considered for an SEP

SEP opportunities arise when a violation or spill event occurs, the Water Board successfully pursues enforcement action, and the discharger elects to resolve the enforcement action through an SEP rather than simply paying an ACL liability, or fine. Because only a few SEPs may be approved in any given year, chances are low that any one project will be selected. In order to minimize the effort involved for project proponents, we ask for a simple concept proposal initially. If your project is selected by a discharger for consideration, you will be asked to develop a broader proposal including a detailed project description, budget, milestones, description of benefit, and performance measures. The full proposal must demonstrate consistency with the State Water Board SEP Policy.

SEPs are generally considered for projects exceeding $20,000. There is no upper limit; however, most funded projects fall in the $100,000-$250,000 range.

To submit a project concept, or if you have questions, please contact Adrien Baudrimont (SFEP).

Current SEP projects are listed below.

Click on the title to access the SEP Project details. ACL Order numbers are assigned by the Water Board to assist in tracking each case. The Regulatory Measure number is used in the Water Board’s California Integrated Water Quality System (CIWQS).

[accordion] [acc_item title=”Yosemite Slough Shoreline Restoration Visitor Interpretive Center”] Discharger: San Francisco Public Utility Commission
Dollar Amount: $611,100
ACL Order Number: R2-2016-1034
CIWQS Regulatory Measure Number: 410218
Project Proposal: ACL Package

[acc_item title=”Peyton Slough hydraulic relief project.”] Discharger: Mountain View Sanitary District
Dollar Amount: $125,000
ACL Order Number: R2-2009-0066
CIWQS Regulatory Measure Number: 366664
Project Proposal: Revised SEP

Start Date: 10/8/2009 – Completion Date: 5/1/2015[/acc_item] [acc_item title=”Pinole Creek fish passage project.”] Discharger: ConocoPhillips
Dollar Amount: $190,000
ACL Order Number: R2-2010-0103
CIWQS Regulatory Measure Number: 372387
Project Proposal: ACL package and SEP proposal

Start Date: 8/26/2010 – Completion Date: 12/1/2015[/acc_item] [acc_item title=”Southern Marin Sewer Lateral Replacement Assistance Program”] Discharger: Sewerage Agency of Southern Marin
Dollar Amount: $600,000
ACL Order Number: R2-2009-0026
CIWQS Regulatory Measure Number: 362588
Project Proposal: SEP proposal

Start Date: 4/8/2009 – Completion Date: 7/1/2018[/acc_item] [acc_item title=”Eden Landing Pond E8X/E9/E14 Tidal Marsh Transition Zone Habitat Restoration Project”] Discharger: San Francisco Public Utilities Commission
Dollar Amount: $277,892
ACL Order Number: R2-2014-1003
CIWQS Regulatory Measure Number: 394659
Project Proposal: SEP proposal

Start Date: 1/17/2014 – Completion Date: 4/30/2016[/acc_item] [acc_item title=”City of San Bruno Private Sewer Lateral Grant Program”] Discharger: City of San Bruno
Dollar Amount: $199,622
ACL Order Number: R2-2011-0044
CIWQS Regulatory Measure Number: 373102
Project Proposal: SEP description

Start Date: 7/25/11 – Completion Date: 6/1/2016[/acc_item] [acc_item title=”Bahia Tidal Pond Enhancement and Marsh Monitoring”] Discharger: Novato Sanitary District
Dollar Amount: $96,668
ACL Order Number: R2-2012-0011
CIWQS Regulatory Measure Number: 376066
Project Proposal: Project Description

Start Date: 10/17/2012 – Completion Date: 7/31/2016[/acc_item] [acc_item title=”Simmons Slough Wetlands Enhancement Project”] Discharger: Novato Sanitary District
Dollar Amount: $43,470
ACL Order Number: R2-2012-0011
CIWQS Regulatory Measure Number: 376066
Project Proposal: Project Description

Start Date: 10/17/2012 – Completion Date: 8/31/2016[/acc_item] [acc_item title=”Southeastern Creekside Marsh Habitat Enhancement Project”] Discharger: Ross Valley Sanitary District
Dollar Amount: $249,370
ACL Order Number: R2-2012-0055
CIWQS Regulatory Measure Number: 385753
Project Proposal: Project Description

Start Date: 6/20/2012 – Completion Date: 10/15/2018[/acc_item] [/accordion]