Site Mitigation & Restoration Program

We protect and maintain California’s land and places
by setting strict standards for land restoration and cleanup

Brownfields Funding

Targeted Site Investigation Plus (TSI+) Program

Currently soliciting INNOVATIVE IDEAS and SITES for TSI+ Program

Since 2004, the TSI Program has been part of DTSC’s CERCLA 128(a) State and Tribal Response Program Grant, funded by the United States Environmental Protection Agency (U.S. EPA). DTSC provided environmental services to local governments, school districts, and nonprofits to facilitate the return of brownfields to safe and productive uses. The program focused on properties with a clear need for redevelopment, strong redevelopment potential, real or perceived contamination, and municipal/community support for redevelopment. DTSC has provided assessment, investigation, and cleanup planning services to over 100 projects, in 68 cities, and 30 counties, throughout the State of California.

DTSC is currently working to innovate and transform the TSI Program into the TSI+ Program.

How is the TSI+ Program Different?

Building on the success of the TSI Program, DTSC envisions an enhanced TSI+ Program to support local governments, school districts, tribes, and nonprofits as they return brownfields to safe and productive uses. We are innovating and transforming our program to better facilitate development of brownfields to support disadvantaged California communities. DTSC is looking to align brownfield redevelopment efforts with California’s priorities of “tackling our state’s affordability crisis, creating inclusive economic grown and opportunity for every child, and standing up for California values – from civil rights, to immigration, environmental protection, access to quality schools at all levels, and justice” (see Governor Newsom’s website (link opens new window)). DTSC will explore and experiment with different approaches to focus on brownfields with proposed redevelopment intended to support communities that are disadvantaged, have environmental justice issues, or are disproportionately burdened by and vulnerable to multiple sources of pollution, such as those with high CalEnviroScreen scores (link opens new window).


If you have innovative ideas or a brownfield site to be considered for the TSI+ program, please forward your ideas to or request an application from the TSI+ Program Coordinator,

Brownfields Funding Webinar

Annual Brownfields Funding Webinar has been canceled for 2020

Due to uncertainty caused by COVID-19, the annual Brownfields Funding Webinar, co-hosted by DTSC, U.S. EPA and the State Water Resources Control Board (SWRCB), has been canceled for 2020.

For reference, presentations from the May 2019 webinar are posted below. The May 2019 webinar was intended for parties interested in returning brownfields to productive economic and/or open space use. If you have questions about brownfields funding, contact Maryam Tasnif-Abbasi at (714) 484-5489 or

2019 Webinar Presentation Materials

U.S. Environmental Protection Agency (EPA) Brownfields Grant Support

The U.S. EPA offers a variety of grant and loan programs and technical assistance to help communities assess and clean up brownfields and prepare them for redevelopment. Information on U.S. EPA brownfields grants is currently available at U.S. EPA’s Brownfields Grants (link opens new window) page. The application deadline is December 3, 2019. In order to develop a complete proposal package, the U.S. EPA requires a letter of acknowledgement from a state agency. Learn how to obtain a Letter of Acknowledgement from DTSC.

DTSC helps U.S. EPA grant applicants and recipients access federal brownfields funding by determining eligibility of petroleum-contaminated brownfields sites, under CERCLA section 101(39)(D). This is not a regulatory determination. A petroleum eligibility determination by DTSC, under CERCLA section 101(39)(D), for the purpose of brownfields funding does not release any party from obligations under any federal or state law or regulation, or under common law, and does not impact or limit EPA or state enforcement authorities against any party. Refer to the following guidelines and application to request this grant support from DTSC.