SIOUX COUNTY REGIONAL AIRPORT AGENCY: Single Audit Reports and Findings
SIOUX COUNTY REGIONAL AIRPORT AGENCY filed 4 single audits between 2016 and 2019; the most recently observed auditor is WILLIAMS & COMPANY, P.C. (2019), and the 2019 report lists 6 findings, including 1 material weakness. Data as of 2026-09-18.
Data as of Sep 18, 2026 · Source: Federal Audit Clearinghouse (public data)
Single audits by year
One row per audit year as the Federal Audit Clearinghouse accepted it. The auditor named is the one observed on that filing; SIOUX COUNTY REGIONAL AIRPORT AGENCY is recorded in MAURICE, Iowa under EIN 542173441, and the Clearinghouse records it as a local government.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2019 | 2019-06-30 | $3,671,201 | $750,000 | WILLIAMS & COMPANY, P.C. | 6 | MW | 2019-06-CENSUS-0000238327 |
| 2018 | 2018-06-30 | $1,832,416 | $750,000 | WILLIAMS & COMPANY, P.C. | 2 | MW | 2018-06-CENSUS-0000238327 |
| 2017 | 2017-06-30 | $4,084,871 | $750,000 | WILLIAMS & COMPANY, P.C. | 2 | MW | 2017-06-CENSUS-0000238327 |
| 2016 | 2016-06-30 | $2,563,196 | $750,000 | WILLIAMS & COMPANY, P.C. | 2 | MW | 2016-06-CENSUS-0000238327 |
Which federal programs did this organization report?
From the most recent accepted report. "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 20.106 | AIRPORT IMPROVEMENT PROGRAM | $3,270,265 | Yes |
| 20.106 | AIRPORT IMPROVEMENT PROGRAM | $250,936 | Yes |
| 20.106 | AIRPORT IMPROVEMENT PROGRAM | $150,000 | Yes |
What findings did the auditor report?
The reference and the requirement letter are the ones the auditor used. The finding text itself is not reproduced here; the FAC report linked above carries it in full.
| Reference | Requirement | Severity | Repeat |
|---|---|---|---|
| 2019-003 | B | Other | No |
| 2019-004 | P | Material weakness | Yes |
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How we computed this
Every row comes from the Federal Audit Clearinghouse record named beside it, one report per audit year, with a resubmission superseding the filing it replaces. The auditor is the one named on that filing — it is not a statement about who audits SIOUX COUNTY REGIONAL AIRPORT AGENCY now. Form 990 figures come from the IRS e-filed return named by its object id. This page exists because the organization filed at least two single audits, or one with a finding.
Cite this page
AuditRadar. “SIOUX COUNTY REGIONAL AIRPORT AGENCY Single Audits.” https://getauditradar.com/single-audits/ia/sioux-county-regional-airport-agency-542173441/. Data as of 2026-09-18.