Bricklaying contractors · California
Cornerstone Masonry Services, Inc.
Sun Valley, CA · ~48 workers · 7 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 9.0
- Avg TCR
- 2.8
- Industry avg
- 0
- Fatalities
The verdict
Cornerstone Masonry Services, Inc. runs at 322% of its industry's injury rate - far more dangerous than the typical Bricklaying contractors workplace, earning a grade F.
Cornerstone Masonry Services, Inc.: 9.0 TCR = 322% of Bricklaying contractors BLS 2.8 · 7y Form 300A (see methodology below)
Cornerstone Masonry Services, Inc. safety composite
Cornerstone Masonry Services, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 13%), 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).
30/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- F 9.02 per 100 workers
Safer than 13% of industry peers
- DART rate
- F 3.61 per 100 workers
Safer than 33% of industry peers
- Fatalities
- D 0
Safer than 51% 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
−6.5
2017→2024
Cornerstone Masonry Services, Inc. injury rate improved
Cornerstone Masonry Services, Inc.'s TCR fell 6.5 from 11.9 in 2017 to 5.4 in 2024. Peak filing year was 2020 at 21.5 TCR. In 2024, DART was 0.4× this establishment's average TCR (severity share of cases).
2017=11.9 · 2018=2.3 · 2020=21.5 · 2021=2.7 · 2022=7.0 · 2023=12.2 · 2024=5.4
OSHA ITA Form 300A scorecard
Establishment book 238140 · Sun Valley, CA ABOVE-IND · SMALL
Grade F · TCR 9.0 · 322% of ind
- DART 3.6 DART
- RANK #58/77
- PHOTO Rowley Plastering
- BOOK 7y book
- INJ 24 inj
- SIZE ~48 FTE
Nearest TCR peer: Rowley Plastering (0.0 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
Cornerstone Masonry Services, Inc. in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- Kiffmeyer Inc.
Kiffmeyer Inc.
9.1 TCR
- This site
Cornerstone Masonry Services, Inc.
9 TCR
- Rowley Plaster
Rowley Plastering
9 TCR
- Eshbach Brothe
Eshbach Brothers, LP
9 TCR
- Cocoa Inc
Cocoa Inc
8.9 TCR
What this shows Cornerstone Masonry Services, Inc. averages 9.0 TCR (322% of the Bricklaying contractors BLS benchmark).
Cornerstone Masonry Services, Inc. TCR series: 2017=11.9 · 2018=2.3 · 2020=21.5 · 2021=2.7 · 2022=7 · 2023=12.2 · 2024=5.4 · BLS 2.8
Where Cornerstone Masonry Services, Inc. falls in its industry
703 Bricklaying contractors establishmentsSafer than 13% of graded establishments in this industry, whose median TCR is 3.9.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #58 safest of 77 Bricklaying contractors employers in California.
Cornerstone Masonry Services, Inc. has fewer employees than the Bricklaying contractors median and a higher injury rate than the industry's median TCR of 3.9. 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 | 5.4 | 3.6 | 3 | 0 | 0 |
| 2023 | 12.2 | 6.1 | 4 | 0 | 0 |
| 2022 | 7.0 | 4.7 | 3 | 0 | 0 |
| 2021 | 2.7 | 0.0 | 1 | 0 | 0 |
| 2020 | 21.5 | 21.5 | 6 | 2 | 0 |
| 2018 | 2.3 | 2.3 | 1 | 0 | 0 |
| 2017 | 11.9 | 2.0 | 6 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
238140 · CA · Sun Valley
703 Bricklaying contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 117 employers in Sun Valley, 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 | Rowley Plastering | 9.0 TCR |
| NAICS-TCR | Eshbach Brothers, LP | 9.0 TCR |
| NAICS-TCR | Kiffmeyer Inc. | 9.1 TCR |
| NAICS-TCR | Cocoa Inc | 8.9 TCR |
| STATE-SIZE | ARVIN PRODUCTION & ADMIN | 48 FTE |
| STATE-SIZE | Rava Business Park | 48 FTE |
| STATE-SIZE | Guerrero Transportation & Contracting Inc | 48 FTE |
| STATE-SIZE | VPS, Inc | 48 FTE |
| CITY-NEAR | Division 15 | 510 FTE |
| CITY-NEAR | The People Concern - Arminta Apts | 367 FTE |
| CITY-NEAR | TRUESDALE TRAINING FACILITY | 366 FTE |
| CITY-NEAR | LADWP 11781 TRUESDALE | 357 FTE |
| NAT-TCR | The Pearl of Rolling Meadows | 9.0 TCR |
| NAT-TCR | Amazon.com Services LLC - LIT2 | 9.0 TCR |
| NAT-TCR | Amazon.com Services LLC - SLC1 | 9.0 TCR |
| NAT-TCR | Amazon.com Services LLC - DCB8 | 9.0 TCR |
| NAT-SIZE | The Scotts Company - Groveland | 48 FTE |
| NAT-SIZE | Grand Rapids Sales Office | 48 FTE |
| NAT-SIZE | Deerfield LTC | 48 FTE |
| NAT-SIZE | City of Portage - Department of Public Works | 48 FTE |
Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →
Read our methodology - how this data is sourced, computed, and verified.