Basalt mining or quarrying · California

Napa Quarry

Napa, CA · ~25 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
12.3
Avg TCR
1.9
Industry avg
0
Fatalities
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The verdict

Napa Quarry runs at 648% of its industry's injury rate - far more dangerous than the typical Basalt mining or quarrying workplace, earning a grade F.

Napa Quarry: 12.3 TCR = 648% of Basalt mining or quarrying BLS 1.9 · 3y Form 300A (see methodology below)

Napa Quarry safety composite

Napa Quarry scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 15%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

26/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 12.31 per 100 workers

Safer than 15% of industry peers

DART rate
F 4.45 per 100 workers

Safer than 20% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−2.1

2019→2021

Napa Quarry injury rate improved

Napa Quarry's TCR fell 2.1 from 11.0 in 2019 to 8.9 in 2021. Peak filing year was 2020 at 17.0 TCR. In 2021, DART was 0.36× this establishment's average TCR (severity share of cases).

2019=11.0 · 2020=17.0 · 2021=8.9

OSHA ITA Form 300A scorecard

Establishment book 212311 · Napa, CA ABOVE-IND · SMALL

Grade F · TCR 12.3 · 648% of ind

  • DART 4.5 DART
  • RANK #7/7
  • PHOTO Coldspring - Raymond
  • BOOK 3y book
  • INJ 8 inj
  • SIZE ~25 FTE

Nearest TCR peer: Coldspring - Raymond (0.2 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

Napa Quarry in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Napa Quarry averages 12.3 TCR (648% of the Basalt mining or quarrying BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Napa Quarry TCR series: 2019=11 · 2020=17 · 2021=8.9 · BLS 1.9

Where Napa Quarry falls in its industry

27 Basalt mining or quarrying establishments

Safer than 15% of graded establishments in this industry, whose median TCR is 4.6.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #7 safest of 7 Basalt mining or quarrying employers in California.

Napa Quarry (25 employees, TCR 12.3) among 16 same-industry peers, split at the industry median of 48 employees and a TCR of 4.6 2×2 strategic matrix plotting 17 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 20406080100120 05101520 Average employees Total Case Rate Napa Quarry
Napa Quarry (25 employees, TCR 12.3) among 16 same-industry peers, split at the industry median of 48 employees and a TCR of 4.6

Napa Quarry has fewer employees than the Basalt mining or quarrying median and a higher injury rate than the industry's median TCR of 4.6. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2021 8.9 4.5 1 1 0
2020 17.0 17.0 4 0 0
2019 11.0 7.3 3 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

212311 · CA · Napa

27 Basalt mining or quarrying employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 186 employers in Napa, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Coldspring - Raymond 12.1 TCR
NAICS-TCR Vic Russell Construction 11.5 TCR
NAICS-TCR Glacier Stone 10.2 TCR
NAICS-TCR Dakota Stone Inc 16.8 TCR
STATE-SIZE Conservation Farms Ranches 25 FTE
STATE-SIZE GM Ag Services, Inc. 25 FTE
STATE-SIZE Farm Shop 25 FTE
STATE-SIZE Dougherty Brothers 25 FTE
CITY-NEAR California Department of Transportation Facility 532 2,891 FTE
CITY-NEAR Department of State Hospitals-Napa 2,248 FTE
CITY-NEAR Napa County 1,545 FTE
CITY-NEAR 2004-00001420 1,142 FTE
NAT-TCR Mechanical Solutions Englewood 12.3 TCR
NAT-TCR Wegmans PA Distribution RSC 12.3 TCR
NAT-TCR HG655 12.3 TCR
NAT-TCR The Bellingham at Orchard A Memory Care Residence 12.3 TCR
NAT-SIZE Preferred Metal Products, Inc. 25 FTE
NAT-SIZE De Arteaga Inc. 25 FTE
NAT-SIZE Virginia Center (#47) 25 FTE
NAT-SIZE Washington Square (#139) 25 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2021, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.