Projects selected for funding under the IRWM Grant program are required to spend grant funds as per the approved project scope and budget. The Department of Water Resources requires quarterly progress reports for all projects and conducts site visits during construction for each development project. Payment requests must include a signed invoice by the grantee verifying that each expense complies with requirements outlined in the grant agreement. Grantees must also submit supporting documentation for each expense, with reimbursements approved only for eligible expenses pursuant to program guidelines and contained within the approved project budget. The Department of Water Resources also withholds up to ten percent of each payment request to be released upon project completion. All Proposition 84 IRWM Local Assistance funds ($915 million) have been awarded and no additional solicitations will be conducted. Among the funds, total of $30 million and $808.5 million was awarded through the Planning and Implementation Grant Program, respectively.

All construction/implementation projects funded via the IRWM Grant program receive a close-out visit conducted by the Department of Water Resources at the time the project is complete and prior to releasing retention amount. The purpose of the close-out field visit is to ensure all project components were completed according to program guidelines and the terms of the grant agreement, including project scope and budget. All construction/ implementation grantees are required to conduct post construction/implementation monitoring and to assess project performance. Due to the nature of the IRWM Planning Grant program, the follow-up accountability differs and consists of ensuring that the funded planning actions were completed. All grantees must comply with all current laws and regulations which apply to the project and submit documents summarizing total project costs and all additional funding sources.