Nonprofit audit and tax records · EIN 33-0576233
HYDROLOGIC RESEARCH CENTER
SAN DIEGO, California · 1 matched reporting period
- Federal expenditures in the matched audit
- $1,169,148
- IRS Form 990 total revenue
- $3,214,589
- Most recent matched end month
- September 2023
Follow the filings across years
The two latest comparable audit spans report federal expenditures of $1,977,424 and $1,740,329, a change of -$237,095 (-12%).
| Audit span and source records | Audited federal expenditures | IRS Form 990 total revenue |
|---|---|---|
| Oct 1, 2024 to Sep 30, 2025 FAC report 2025-09-GSAFAC-0000403138 · Accepted Feb 17, 2026 | $1,740,329 | Unavailable in these extracts |
| Oct 1, 2023 to Sep 30, 2024 FAC report 2024-09-GSAFAC-0000358360 · Accepted Mar 11, 2025 | $1,977,424 | Unavailable in these extracts |
| Oct 1, 2022 to Sep 30, 2023 FAC report 2023-09-GSAFAC-0000038676 · Accepted May 9, 2024 2024 IRS extract | $1,169,148 | $3,214,589 |
Source and scope
How the records were matched
- Federal expenditures are the total federal awards expended as reported in the organization’s public single audit. The audit shows the full fiscal date range and can include both direct and pass-through awards.
- Form 990 total revenue is the total revenue field in the IRS extract. It covers the filing’s revenue categories. The IRS publishes the end month in this extract, so the tax period may have a different start date or reporting scope from the audit.
- The match requires the same EIN and end month. We keep the latest accepted equivalent public audit and omit unclear audit spans or conflicting tax amounts. The IRS files cover returns filed in calendar years 2022–2024. Later audits may have an unavailable tax comparison in this collection.
- Read the figures separately. Audited award expenditures and Form 990 revenue use different accounting measures. The sources behind each figure are linked in the table.
Public records checked Nov 10, 2026. Federal Audit Clearinghouse data · FAC duplicate guidance · IRS financial extracts · IRS nonprofit search