---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-043553"
form_type: "8-K"
ticker: "AVA"
cik: "0000104918"
company_name: "AVISTA CORP"
filed_at: "2023-08-21T23:59:59+00:00"
generated_at: "2026-06-11T05:57:22.179939+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Avista discloses Gray Fire near Medical Lake; no indication of utility involvement

## Summary
- Gray Fire started August 18, 2023, burned >10,000 acres and damaged at least 185 structures.
- Avista's investigation found no indication that its facilities caused the fire ignition.
- Company assisting first responders and community support agencies for impacted areas.
- No financial or legal liability estimate provided; potential regulatory and litigation risk.

## SEC filing metadata
- accession: 0000950170-23-043553
- form_type: 8-K
- ticker: AVA
- cik: 0000104918
- company_name: AVISTA CORP
- filed_at: 2023-08-21T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/104918/000095017023043553/0000950170-23-043553-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/104918/000095017023043553/ava-20230818.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-043553
- JSON: https://secwatch.observer/filing/0000950170-23-043553.json
- Plain text: https://secwatch.observer/filing/0000950170-23-043553.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.