Targeted Sites Investigation Plus (TSI+) Program

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Opportunity Type:
  • Grant
Last Updated:



The purpose of the TSI+ Program is for DTSC to provide assessments, investigations, and cleanup planning to help evaluate real or perceived environmental contamination needed to allow redevelopment of brownfields to safe and productive uses.


Under the TSI+ Program, Department of Toxic Substances Control (DTSC) provides assessment, investigation, or cleanup planning services at no cost to the applicant.  The TSI+ Program focuses on brownfields for which redevelopment is complicated by the presence or potential presence of environmental contamination.  Then intent of the program is to focus on brownfield properties in 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). Site must meet the following eligibility criteria: Brownfields Status: Sites must meet the U.S. EPA definition of a “Brownfield” site, which means real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant and may include petroleum hydrocarbon releases. Redevelopment Planning and Funding: Redevelopment must be in the planning stages or in progress.  Preference is given to sites with a development agreement in place and/or redevelopment funding has been secured.  DTSC cannot consider projects that have been completed. Site Access: Site ownership is not required.  However, applicant must have written authorization and legal permission, from the property owner, to enter the site and provide access for DTSC and its contractor to conduct assessment and investigation activities, including a site visit and field work. The following applicants/properties are not eligible: Applicants responsible for causing or exacerbating environmental contamination on the property Properties owned by or under control of state or federal government Properties subject to an active order, enforcement action, or hazardous waste permit from a federal, state, or local environmental regulatory agency

Eligibility Requirements

Eligible Applicants:

  • Nonprofit
  • Public Agency
  • Tribal Government

Eligible Geographies:

Site must be located in California.

Important Dates

The date (and time, where applicable) by which all applications must be submitted to the grantmaker. Time listed as “00:00” equates to midnight.
The date on which the grantor expects to announce the recipient(s) of the grant.
The length of time during which the grant money must be utilized.

Funding Details

The total projected dollar amount of the grant.
A single grant opportunity may represent one or many awards. Some grantors may know in advance the exact number of awards to be given. Others may indicate a range. Some may wish to and wait until the application period closes before determining how many awards to offer; in this case, a value of “Dependent” will display.
Grant opportunities representing multiple awards may offer awards in the same amount or in varied amounts. Some may wish to wait until the application period closes before determining per-award amounts; in this case, a value of “Dependent” will display.
$45,000 – $150,000
Certain grants require that the recipient(s) provide a letter of intent.
Certain grants require that the recipient(s) be able to fully or partially match the grant award amount with another funding source.
The funding source allocated to fund the grant. It may be either State or Federal (or a combination of both), and be tied to a specific piece of legislation, a proposition, or a bond number.
  • Federal

Funding Source Notes:

TSI+ Program is funded by DTSC’s CERCLA 128(a) State and Tribal Response Program Grant, from the United States Environmental Protection Agency (U.S. EPA Grant Number - RP-98T06201).

The manner in which the grant funding will be delivered to the awardee. Funding methods include reimbursements (where the recipient spends out-of-pocket and is reimbursed by the grantor) and advances (where the recipient spends received grant funds directly).

Funding Method Notes:

DTSC does not provide funds to the grantee. DTSC pays a contractor directly to provide environmental services to the grantee. Payment is in services provided.

How to Apply

State agencies/departments recommend you read the full grant guidelines before applying.


For questions about this grant, contact:
Triss Chesney, 1-714-484-5419,