Foundation, building, poured concrete, contractors · Arizona
Keystone Concrete, LLC
Mesa, AZ · ~96 workers · 5 years of OSHA Injury Tracking Application data.
- D
- Poor Safety Record
- 4.8
- Avg TCR
- 2.8
- Industry avg
- 0
- Fatalities
The verdict
Keystone Concrete, LLC runs at 173% of its industry's injury rate - more dangerous than the typical Foundation, building, poured concrete, contractors workplace, earning a grade D.
Keystone Concrete, LLC: 4.8 TCR = 173% of Foundation, building, poured concrete, contractors BLS 2.8 · 5y Form 300A (see methodology below)
Keystone Concrete, LLC safety composite
Keystone Concrete, LLC scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 29%), 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).
39/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- D 4.85 per 100 workers
Safer than 39% of industry peers
- DART rate
- F 3.68 per 100 workers
Safer than 29% 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
−4.7
2020→2024
Keystone Concrete, LLC injury rate improved
Keystone Concrete, LLC's TCR fell 4.7 from 8.4 in 2020 to 3.7 in 2024. Peak filing year was 2020 at 8.4 TCR. In 2024, DART was 0.76× this establishment's average TCR (severity share of cases).
2020=8.4 · 2021=1.1 · 2022=8.0 · 2023=3.0 · 2024=3.7
OSHA ITA Form 300A scorecard
Establishment book 238110 · Mesa, AZ ABOVE-IND · SMALL
Grade D · TCR 4.8 · 173% of ind
- DART 3.7 DART
- RANK #23/37
- PHOTO J B Esker & Sons Inc
- BOOK 5y book
- INJ 22 inj
- SIZE ~96 FTE
Nearest TCR peer: J B Esker & Sons Inc (0.0 TCR gap)
Read with this employer → · Industry book → · Arizona employers → · Look up another →
Keystone Concrete, LLC in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- LARGO CONCRETE
LARGO CONCRETE, INC.
4.9 TCR
- NCH - Loxley
NCH - Loxley
4.9 TCR
- This site
Keystone Concrete, LLC
4.8 TCR
- J B Esker & So
J B Esker & Sons Inc
4.8 TCR
- Equipment Deve
Equipment Development Co. Inc
4.8 TCR
What this shows Keystone Concrete, LLC averages 4.8 TCR (173% of the Foundation, building, poured concrete, contractors BLS benchmark).
Keystone Concrete, LLC TCR series: 2020=8.4 · 2021=1.1 · 2022=8 · 2023=3 · 2024=3.7 · BLS 2.8
Where Keystone Concrete, LLC falls in its industry
1,314 Foundation, building, poured c establishmentsSafer than 39% of graded establishments in this industry, whose median TCR is 3.8.
Narrower to Arizona alone (the establishments it most directly competes with for workers and contracts): ranked #23 safest of 37 Foundation, building, poured c employers in Arizona.
Keystone Concrete, LLC has more employees than the Foundation, building, poured concrete, c median and a higher injury rate than the industry's median TCR of 3.8. 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 | 3.7 | 3.7 | 4 | 0 | 0 |
| 2023 | 3.0 | 3.0 | 3 | 0 | 0 |
| 2022 | 8.0 | 6.9 | 7 | 0 | 0 |
| 2021 | 1.1 | 1.1 | 1 | 0 | 0 |
| 2020 | 8.4 | 8.4 | 7 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
238110 · AZ · Mesa
1,314 Foundation, building, poured concrete, contractors employers nationwide with a credible TCR · 9,594 rated employers in Arizona with headcount on file · 565 employers in Mesa, AZ · 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 | J B Esker & Sons Inc | 4.8 TCR |
| NAICS-TCR | Equipment Development Co. Inc | 4.8 TCR |
| NAICS-TCR | LARGO CONCRETE, INC. | 4.9 TCR |
| NAICS-TCR | NCH - Loxley | 4.9 TCR |
| STATE-SIZE | Broccoli | 96 FTE |
| STATE-SIZE | Cactus Lane Farm | 96 FTE |
| STATE-SIZE | Mountain States Wholesale Nursery | 96 FTE |
| STATE-SIZE | NA-US-AZ-South Tucson-E Elvira | 96 FTE |
| CITY-NEAR | AZ001 | 4,193 FTE |
| CITY-NEAR | AZAPW9668 AZA - RAMP PAX | 3,181 FTE |
| CITY-NEAR | 04-290370278-2 | 1,964 FTE |
| CITY-NEAR | Police Department H210 | 1,651 FTE |
| NAT-TCR | RAD Shipping,LLC | 4.8 TCR |
| NAT-TCR | Etna Supply - Traverse City | 4.8 TCR |
| NAT-TCR | Action Gypsum Supply West Carson | 4.8 TCR |
| NAT-TCR | Summit Point | 4.8 TCR |
| NAT-SIZE | Brentwood Industries | 96 FTE |
| NAT-SIZE | Southfield Village | 96 FTE |
| NAT-SIZE | Hilltop Inn | 96 FTE |
| NAT-SIZE | CAREL USA Inc. | 96 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.