Treasury Audit Reports

This page hosts the Governmental Accounting Standards Board (GASB) and Periodic Compliance Reports produced for the Treasury. This page displays reports from the current and past three years. Please contact our office by email or phone at (707) 565-3229 if you are interested in obtaining older files.

GASB 31 Reports

This Statement establishes accounting and financial reporting standards for all investments held by governmental external investment pools.

June 30, 2026 (PDF: 488.72 KB)
June 30, 2025 (PDF: 1.27 MB)
June 30, 2024 (PDF: 3.75 MB)
June 30, 2023 (PDF: 543 KB)

GASB 40 Reports

This Statement addresses common deposit and investment risks related to credit risk, concentration of credit risk, interest rate risk, and foreign currency risk.

June 30, 2026 (PDF: 403 KB)
June 30, 2025 (PDF: 869.2 KB)
June 30, 2024 (PDF: 1.56 MB)
June 30, 2023 (PDF: 327 KB)

Annual Examinations of Compliance

This is an annual Independent Accountants Examination Report providing a reasonable assurance opinion about whether the Sonoma County Treasury Investment Pool complied in all material respects with specified California Government Code Sections.

Fiscal Year Ending June 30, 2025 (PDF: 3.64 MB)
Fiscal Year Ending June 30, 2024 (PDF: 258 KB)
Fiscal Year Ending June 30, 2023 (PDF: 735 KB)
Fiscal Year Ending June 30, 2022 (PDF: 234 KB)

Treasury Quarterly Compliance Reports

This is a quarterly report to determine the adequacy of the controls in place surrounding the handling of cash within the Treasury as well as compliance with certain laws surrounding the Sonoma County Treasury Investment Pool.

2026 Reports

Quarter Ended June 30, 2026 (PDF: 334.3 KB)
Quarter Ended March 31, 2026 (PDF: 335.8 KB)

2025 Reports

Quarter Ended December 31, 2025 (PDF: 597.9KB)
Quarter Ended September 30, 2025 (PDF: 578 KB)
Quarter Ended June 30, 2025 (PDF: 656 KB)
Quarter Ended March 31, 2025 (PDF: 600 KB)

2024 Reports

Quarter Ended December 31, 2024 (PDF: 558 KB)
Quarter Ended September 30, 2024 (PDF: 730 KB)
Quarter Ended June 30, 2024 (PDF: 468 KB)
Quarter Ended March 31, 2024 (PDF 384 KB)

2023 Reports

Quarter Ended December 31, 2023 (PDF: 464 KB)
Quarter Ended September 30, 2023 (PDF: 507 KB)
Quarter Ended June 30, 2023 (PDF: 492 KB)
Quarter Ended March 31, 2023 (PDF: 433 KB)