secwatch.observer — SEC 8-K summary
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Issuer:     Arcosa, Inc. (ACA)
CIK:        0001739445
Form:       8-K
Filed at:   2026-07-15T20:25:30+00:00
Accession:  0001739445-26-000120
Event type: regulatory
Sentiment:  neutral
Materiality: 0.15
Item codes: 1.04
LLM model:  deepseek-v4-flash:cloud@v2

Arcosa receives MSHA 107(a) order at Stavola Bound Brook Quarry; terminated same day
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- Order issued July 14, 2026, after material fell from highwall during drilling at Bridgewater, NJ quarry.
- Track drill withdrawn for highwall integrity evaluation; order terminated shortly after inspection.
- No injuries; operations resumed after relocating the track drill.
- Third-party driller and blaster, Company personnel, and MSHA inspector consulted to resolve condition.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1739445/000173944526000120/0001739445-26-000120-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1739445/000173944526000120/aca-20260714.htm
  HTML page:      https://secwatch.observer/filing/0001739445-26-000120

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer