FIRE ALARM (LOC)
31 N MAIN ST · Btwn: FISHERS ALY & E RANDOLPH ST
ETA
5m
DIST
1mi
HYD
235ft
PREPLAN
N
PRIOR
5
Temp
81°F
Wind
12 WSW
Conditions
Mostly cloudy
Humidity
47%
Prior Calls at This Address (4)
4 of 4 priors were alarm activations · no actual fires
Radio Size-Up
[UNIT] is on scene at CHB INVESTMENT GROUP,
1-story ordinary commercial business occupancy,
approximately 30 by 40,
nothing in evidence, out investigating.
Reference
Zone: 22
Wind: 12mph WSW → fire spreads ENE
Dark — portable lighting needed
5 prior calls at this address
Hydrant 37 — 235ft N — 1500+ GPM
At corner of N. Main St. and W. Randolph St.
Structure
Ordinary Commercial
Occupancy
Business
Footprint
1,167 sq ft
Construction
Ordinary
Dispatch
SMOKE BACK APT HALLZONE 22
Caller: OPER MF05 VECTOR
Water Supply
N
45 North Main Street New Hope
At corner of N. Main St. and W. Randolph St.
NE
99 East Randolph Street New Hope
At dead end of E. Randolph St. Behind bushes in small public park space.
🚨 Incident Snapshot
moderateFire alarm activation with smoke reported
Art gallery (commercial) at street level
Repeated nuisance alarms (3 in 3 years) + odor complaints
⚠️ Primary Risk Signals
Nuisance alarm pattern
Zone 22 (back apartment hallway) — confirm occupancy
Prior odor complaints suggest HVAC or external source, not active fire
Dark conditions on arrival
Portable lighting required for interior and rear access
Smoke source confirmation critical in low light
Occupancy unknown
Gallery may have after-hours staff or residents
Front entry via N Main St, rear via alley — confirm all occupants accounted for
🌬️ Environmental Conditions
Wind 12 mph WSW
Smoke direction easterly if source is rear/alley
Light wind — limited spread potential indoors
🔥 Fire Behavior Cue
Reported smoke in back hallway — likely HVAC origin or external drift
Confirm fire location before interior ops
Odor history suggests nuisance threshold is low at this location
✔️ Confirm on Arrival
Smoke location and type
Back hallway (Zone 22) — visible flame, odor only, or HVAC artifact
Occupancy status
Gallery hours, any staff present, back apartment occupied
Alarm panel and fire source
Confirm zone 22 heat/smoke detector, check HVAC status and exhaust vents
Rear access and hazards
Alley clearance, external obstructions, neighboring structures
🧠 Common Causes
HVAC malfunction or ductwork fire
External smoke drift from alley or adjacent structure
Cooking odor or equipment in back apartment
Detector sensitivity (prior false alarms)
Field Notes