AirIndex Research · FAA LID CL53

ST HELENA HOSPITAL CLEARLAKE

CLEARLAKE, CA. Operational · Private use.

OperationalPrivate usePrivate
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Data integrity

79/100
CorroboratedData Integrity Index
Independent inspection
Owner self-reported — never independently field-inspected
Location confidence
No coordinate anomaly detected
Terrain cross-check (USGS 3DEP)
FAA 1432 ft MSL · USGS ground 1435 ft · Δ -3 ft
Structure cross-check (Overture / OSM)
Ground-level — no building footprint at the coordinate
Cross-source consensus
Corroborated — terrain and structure agree (2/2 sources)

Cross-checked against independent public data — USGS 3DEP terrain, Overture/OSM building footprints, the federal hospital registry, and measured dimensions. The State of the U.S. Heliport Record →

eVTOL readiness

FeasibleConversion feasibility · obstruction screen
100 ft · eVTOL FATO43 ft
The recorded pad is 57 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
43 ft
eVTOL FATO required
100 ft
FAA EB-105 vertiport pattern — 2× a ~50 ft eVTOL controlling dimension, plus a 125 ft safety-area side.
Load-bearing FATO
100 × 100 ft must be structural
No heliport precedent — typically the binding gate for rooftop and hospital pads.
Obstruction clearance
Clear — no obstructions within 0.5 nm on the FAA obstacle file

Measured against FAA pad geometry and federal FATO sizing (EB-105). A dimensional pre-screen — site-level validation required, and independent of the underwriting risk score.

FAA compliance

Q1 · FAA registrationPASS
Active FAA NASR 5010 record.
Q2 · Airspace determinationON_FILE
OE/AAA ASN 2024-AWP-5779-NRA: DET-to-Prop
Q3 · State enforcementSTRONG
State has adopted FAA AC as enforceable.
Q4 · NFPA 418UNKNOWN
NFPA 418 adoption status not yet assessed for this jurisdiction.

FAA facility data

FAA LID
CL53
AIX ID
aix:hp:R0G1MDHN
Lat / Lng
38.93459, -122.61935
Elevation
1432 ft MSL
Pad dimensions
43 × 43 ft
Surface type
DECK
Surface condition
GOOD
Activation date
2000/06
Last owner update
2024/03/25

FAA OEAAA airspace determinations3

Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2024-06-17
  • NRAARCH-DeterminedASN 2024-AWP-5779-NRA
    2024-07-15
    Form 7480 · 0 ft AGL — LAP ASN # 2024-WSA-140-LAP-Update pad coordinates as well as elevation in preparation for Instrument Flight Procedures.
  • NRAARCH-DeterminedASN 2015-AWP-440-NRA
    2015-07-24
    Heliport · 0 ft AGL — Relocation of Off-site landing area to new on-campus helistop. Proposed landing is concrete FATO is 71 ft. TLOF is 43 ft. by 43 ft. magnetic direction of ingress is 305 cw to 075 magnetic direction of egress is 125 cw to 255.
  • NRAARCH-DeterminedASN 1999-AWP-2078-NRA
    1999-07-15
    Other · 0 ft AGL — Proposed activation of a heliport in Clearlake Ca known as REdbud Community Hospital LZ. The dimensions for the FATO and the TLOF is 100' x 100'. The magnetic direction of ingress/Egress routes for the asphalt runway is331/151. Note: Hardcopies of this file will be sent to AT & FS.
Blueprint
The record vs. what we measured
79/100
DATA INTEGRITY
eVTOL footprint
FATO 100 ft reqHTLOF 43 ft

The 43 ft pad is 57 ft short of the 100 ft an eVTOL FATO requires (measured).

SIGNALFEDERAL RECORDMEASURED
Surface elevation1432 ftnot cross-checked
Structurenot on recordGround-level
Pad dimensions43 ft side (filed)43 ft side · measured
Coordinate integrityas filedterrain cross-checked
Independent inspectionowner self-reportednone on record
✓Federal record
✓Cross-checkedUSGS · Overture · dimensions
3Physically verifiedGround Truth capture
Obstructions, exact FATO geometry, surface condition, and downwash exposure require a physical Ground Truth capture — not shown above as measured. A field verification completes the record and writes the measured truth to this facility’s authority.
Request Ground Truth verification

Full risk assessment

This page is the public data-integrity record. The full RiskIndex assessment — Q1–Q5 compliance, dimensional / FATO analysis, an underwriting-grade risk score, peer benchmark, and a sealed Site Intelligence Report — is available on request.

Request the full assessment

Building autonomous systems? See the machine-verified feed

Provenance FAA NASR 5010 · pad dims APT cycle 2026/03/19 · USGS 3DEP terrain · Overture structure · eVTOL screen conversion-feasibility-1.1 · AIX-ID aix:hp:R0G1MDHN · Methodology →
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