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Response synthesis and audit

Sheriff response to tsunami warnings

Three finding answers and four recommendation answers appear on packet pages 7–9. Existing WEA capability is distinguished from the registered-address Humboldt Alert system.

Official response PDFOfficial report PDF

Response by Humboldt County Sheriff · 2026-07-27

4

Addressed

3

Partially addressed

0

Not addressed

0

Unclear

County's stated disposition

These categories reflect the County's response to each recommendation, separate from this audit's assessment.

1

Implemented

1

Will be implemented

2

Requires further analysis

0

Will not be implemented

0

Unclear

How to read this audit

Assessment concerns response position, explanation and coverage, not whether the jury or agency is factually correct. Implementation claims are not independently verified. Unchanged original files and distinct scans remain available; variants are not counted as extra replies. Finding scores use statutory clarity separately from coverage and support. Recommendation answers have dispositions, not finding scores. The cover lists F1/F7/F8, but the body labels and quotes F3/F7/F8. Siren wording uniquely maps the first body answer to jury F3; there is no response to jury F1. Physical packet page numbers 8–9 are used, not the attachment’s printed 2–3. The Emergency section is audited separately only once.

Commitments

Actions stated in the response

These are commitments extracted from the County's response. They describe what the response says will happen; they do not verify that implementation occurred.

1

Extracted commitments

1

Definite or bounded timing

0

Conditional timing

0

No timeframe

R1 · Bounded timeframe

Further publicize that the outdated tsunami siren system will not be replaced or expanded.

By the conclusion of Tsunami Week, 2027, as stated in the recommendation.

Item-by-item review

Findings and recommendations

Assessments describe whether the response engages each cited item. Finding scores separately describe statutory-elements completeness under California Penal Code § 933.05(a) and public usefulness. They do not independently verify the response or constitute a legal conclusion.

Showing 7 of 7 items

finding · F3

Humboldt County tsunami sirens are costly, inadequately funded, and nearly all are non-functional, leaving large tsunami hazard zone areas without siren coverage. (R1)

Audit: Addressed

Response says

Agrees with the siren finding.

Audit analysis

Explicitly agrees. Agreement states a statutory position without requiring a disagreement explanation. No independent factual support or implementation evidence accompanies this answer. The cover’s F1 listing is inconsistent; the body explicitly labels Finding 3 and quotes its siren wording. Mapping follows the unique body quotation.

Finding-response score

Document completeness and usefulness—not factual verification or a legal conclusion.

6/10

4/4

Statutory elements

Stated position
2/2
Applicable disagreement elements
2/2

2/6

Public usefulness

Coverage
2/2
Reason specificity
0/2
Support traceability
0/2

Explicitly agrees. Agreement states a statutory position without requiring a disagreement explanation. No independent factual support or implementation evidence accompanies this answer. The cover’s F1 listing is inconsistent; the body explicitly labels Finding 3 and quotes its siren wording. Mapping follows the unique body quotation.

Scoring confidence: high

Report page 32Response page 8
Discuss finding and response

finding · F7

Alaska-based federally operated tsunami wireless alert systems have historically been targeted to overly broad areas of the west coast, resulting in local false alarms, confusion and needless panic. (R5, R6, R7)

Audit: Addressed

Response says

Agrees.

Audit analysis

Explicitly agrees. Agreement states a statutory position without requiring a disagreement explanation. No independent factual support or implementation evidence accompanies this answer.

Finding-response score

Document completeness and usefulness—not factual verification or a legal conclusion.

6/10

4/4

Statutory elements

Stated position
2/2
Applicable disagreement elements
2/2

2/6

Public usefulness

Coverage
2/2
Reason specificity
0/2
Support traceability
0/2

Explicitly agrees. Agreement states a statutory position without requiring a disagreement explanation. No independent factual support or implementation evidence accompanies this answer.

Scoring confidence: high

Report page 33Response page 8
Discuss finding and response

finding · F8

Current Humboldt Alert wireless messages are sent based on residential addresses rather than using geolocation technology to pinpoint the actual physical location of the person’s phone. This can result in people who do not live in a tsunami hazard zone missing an alert during an actual tsunami event. (R5, R6, R7)

Audit: Addressed

Response says

Agrees.

Audit analysis

Explicitly agrees. Agreement states a statutory position without requiring a disagreement explanation. No independent factual support or implementation evidence accompanies this answer.

Finding-response score

Document completeness and usefulness—not factual verification or a legal conclusion.

6/10

4/4

Statutory elements

Stated position
2/2
Applicable disagreement elements
2/2

2/6

Public usefulness

Coverage
2/2
Reason specificity
0/2
Support traceability
0/2

Explicitly agrees. Agreement states a statutory position without requiring a disagreement explanation. No independent factual support or implementation evidence accompanies this answer.

Scoring confidence: high

Report page 33Response page 8
Discuss finding and response

recommendation · R1

The Humboldt County Sheriff direct the Program Manager of the Humboldt County Office of Emergency Services to further publicize that Humboldt County’s outdated siren system will not be replaced or expanded. This should be completed by the conclusion of Tsunami Week, 2027. (F3)

County: Will be implementedAudit: Addressed

Response says

Will further publicize the siren-system position by the recommended Tsunami Week 2027 period.

Audit analysis

The answer adopts the recommendation’s period rather than naming a calendar day. No invented week dates or claim of completed publicity is added.

Extracted commitments

Further publicize that the outdated tsunami siren system will not be replaced or expanded.

Responsible party
Humboldt County Sheriff
Timing
By the conclusion of Tsunami Week, 2027, as stated in the recommendation. · Bounded timeframe
Report page 33Response page 8

recommendation · R5

The Humboldt County Sheriff direct the Program Manager of the Humboldt County Office of Emergency Services to assess its current local wireless alert system for geolocation functionality and report to the Sheriff by September 30, 2026. (F7, F8)

County: Requires further analysisAudit: Partially addressed

Response says

Requires analysis; explains registered-address Everbridge and geographic WEA capabilities.

Audit analysis

Pages 8–9 distinguish subscriber-based Humboldt Alert from federal WEA and note rural cell coverage limits. They do not state when further analysis or the requested report to the Sheriff will be completed; the jury’s September 30 date is not adopted as a response promise.

Report page 34Response page 8

recommendation · R6

If geolocation is available on the current alert system used by Humboldt County, the Humboldt County Sheriff direct the Program Manager of the Humboldt County Office of Emergency Services to implement geolocation by Tsunami Week, 2027. (F7, F8)

County: Requires further analysisAudit: Partially addressed

Response says

Requires analysis; cross-refers to the R5 explanation.

Audit analysis

The response does not state a decision timetable or commit to implementing geolocation in the local system by Tsunami Week 2027. R5 describes a separate existing WEA channel, not a verified Everbridge upgrade.

Report page 34Response page 9

recommendation · R7

If the current local wireless alert system does not have the ability to send alerts based on geolocation, the Humboldt County Sheriff direct the Program Manager of the Humboldt County Office of Emergency Services to compare the current system to other systems which provide geolocation capability, evaluate available funding, and submit a report on the outcome of that research to the Sheriff by December 31, 2026. (F7, F8)

County: ImplementedAudit: Partially addressed

Response says

Claims implementation because the Sheriff already uses WEA geolocation alerts.

Audit analysis

Existing WEA use addresses alert capability but does not document the requested comparative research, funding evaluation or report. The conditional recommendation and different alert channels are preserved rather than treating WEA use as proof all requested work is complete.

Report page 34Response page 9