Sand and gravel quarrying (i.e., construction grade) and/or beneficiating · California

Hi-Grade Materials-Littlerock

Littlerock, CA · ~28 workers · 6 years of OSHA Injury Tracking Application data.

C
Average Safety Record
1.6
Avg TCR
1.9
Industry avg
0
Fatalities
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The verdict

Hi-Grade Materials-Littlerock runs at 83% of its industry's injury rate - about level with the typical Sand and gravel quarrying (i.e., construction grade) and/or beneficiating workplace, earning a grade C.

Hi-Grade Materials-Littlerock: 1.6 TCR = 83% of Sand and gravel quarrying (i.e., construction grade) and/or beneficiating BLS 1.9 · 6y Form 300A (see methodology below)

Hi-Grade Materials-Littlerock safety composite

Hi-Grade Materials-Littlerock scores strongest on total case rate (tcr) (safer than 80% of same-industry peers) and weakest on fatalities (safer than 53%), 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).

C

72/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 1.57 per 100 workers

Safer than 80% of industry peers

DART rate
B 0 per 100 workers

Safer than 75% of industry peers

Fatalities
D 0

Safer than 53% 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%).

Hi-Grade Materials-Littlerock held a steady TCR band

Hi-Grade Materials-Littlerock's TCR held near 0.0 from 0.0 in 2018 to 0.0 in 2024. Peak filing year was 2023 at 7.4 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2018=0.0 · 2019=2.0 · 2021=0.0 · 2022=0.0 · 2023=7.4 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 212321 · Littlerock, CA AT/BELOW-IND · SMALL

Grade C · TCR 1.6 · 83% of ind

  • DART 0.0 DART
  • RANK #2/11
  • PHOTO HAROLD MACQUINN INC
  • BOOK 6y book
  • INJ 3 inj
  • SIZE ~28 FTE

Nearest TCR peer: HAROLD MACQUINN INC (0.0 TCR gap)

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Hi-Grade Materials-Littlerock in the TCR neighbourhood

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

TCR

What this shows Hi-Grade Materials-Littlerock averages 1.6 TCR (83% of the Sand and gravel quarrying (i.e., construction grade) and/or beneficiating BLS benchmark).

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

Hi-Grade Materials-Littlerock TCR series: 2018=0 · 2019=2 · 2021=0 · 2022=0 · 2023=7.4 · 2024=0 · BLS 1.9

Where Hi-Grade Materials-Littlerock falls in its industry

81 Sand and gravel quarrying (i.e establishments

Safer than 80% of graded establishments in this industry, whose median TCR is 3.4.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 11 Sand and gravel quarrying (i.e employers in California.

Hi-Grade Materials-Littlerock (28 employees, TCR 1.6) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 3.4 2×2 strategic matrix plotting 30 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 0200400600 051015 Average employees Total Case Rate Hi-Grade Materials-Littlerock
Hi-Grade Materials-Littlerock (28 employees, TCR 1.6) among 29 same-industry peers, split at the industry median of 43 employees and a TCR of 3.4

Hi-Grade Materials-Littlerock has fewer employees than the Sand and gravel quarrying (i.e., constru median and a lower injury rate than the industry's median TCR of 3.4. 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
2024 0.0 0.0 0 0 0
2023 7.4 3.7 2 0 0
2022 0.0 0.0 0 0 0
2021 0.0 0.0 0 0 0
2019 2.0 2.0 1 0 0
2018 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

212321 · CA · Littlerock

81 Sand and gravel quarrying (i.e., construction grade) and/or beneficiating employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 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 HAROLD MACQUINN INC 1.6 TCR
NAICS-TCR Concrete Polishing and Restoration LLC 1.6 TCR
NAICS-TCR FSG - NEW MEXICO(GALLUP) 1.6 TCR
NAICS-TCR Tilcon Connecticut Inc 1.7 TCR
STATE-SIZE Davis Ranch L.L.C. 28 FTE
STATE-SIZE Steinbeck Country Produce 28 FTE
STATE-SIZE Harlan Family Ranch 28 FTE
STATE-SIZE KKG Equipment Company, LLC32 28 FTE
CITY-NEAR Hi-Grade Materials - Littlerock Ready Mix 23 FTE
NAT-TCR Phoenix Office 1.6 TCR
NAT-TCR Sodexo at St Albans School for Boys Fac 1.6 TCR
NAT-TCR US Gypsum North Kansas City 1.6 TCR
NAT-TCR Ultra Tech Machinery 1.6 TCR
NAT-SIZE SpringHill Suites by Marriott Portland Vancouver 28 FTE
NAT-SIZE Holiday Inn Hillsboro 28 FTE
NAT-SIZE Main Location 28 FTE
NAT-SIZE Dixie Plywood & Lumber Co. of Nashville 28 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: 2024, 2023, 2022, 2021, 2019, 2018. 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.