Fire and flood restoration, single-family housing, general contractors · California
Koyama Construction Inc
Lockeford, CA · ~20 workers · 7 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 7.9
- Avg TCR
- 3.8
- Industry avg
- 0
- Fatalities
The verdict
Koyama Construction Inc runs at 208% of its industry's injury rate - far more dangerous than the typical Fire and flood restoration, single-family housing, general contractors workplace, earning a grade F.
Koyama Construction Inc: 7.9 TCR = 208% of Fire and flood restoration, single-family housing, general contractors BLS 3.8 · 7y Form 300A (see methodology below)
Koyama Construction Inc safety composite
Koyama Construction Inc scores strongest on dart rate (safer than 82% of same-industry peers) and weakest on total case rate (tcr) (safer than 37%), 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).
56/100
Percentile-weighted across 3 of 3 measures
- Total Case Rate (TCR)
- D 7.91 per 100 workers
Safer than 37% of industry peers
- DART rate
- B 0 per 100 workers
Safer than 82% 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
−4.1
2018→2024
Koyama Construction Inc injury rate improved
Koyama Construction Inc's TCR fell 4.1 from 9.5 in 2018 to 5.4 in 2024. Peak filing year was 2020 at 21.9 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).
2018=9.5 · 2019=0.0 · 2020=21.9 · 2021=0.0 · 2022=12.4 · 2023=6.2 · 2024=5.4
OSHA ITA Form 300A scorecard
Establishment book 236118 · Lockeford, CA ABOVE-IND · SMALL
Grade F · TCR 7.9 · 208% of ind
- DART 0.0 DART
- RANK #51/78
- PHOTO 21-JARDINES DE MONTE…
- BOOK 7y book
- INJ 6 inj
- SIZE ~20 FTE
Nearest TCR peer: 21-JARDINES DE MONTELLANO (0.0 TCR gap)
Read with this employer → · Industry book → · California employers → · Look up another →
Koyama Construction Inc in the TCR neighbourhood
Average Total Case Rate among this establishment and nearest same-industry peers
- This site
Koyama Construction Inc
7.9 TCR
- 21-JARDINES DE
21-JARDINES DE MONTELLANO
7.9 TCR
- Springboro
Springboro
7.9 TCR
- K/S Renewal Sy
K/S Renewal Systems, LLC 410
7.9 TCR
- Facilities
Facilities
7.9 TCR
What this shows Koyama Construction Inc averages 7.9 TCR (208% of the Fire and flood restoration, single-family housing, general contractors BLS benchmark).
Koyama Construction Inc TCR series: 2018=9.5 · 2019=0 · 2020=21.9 · 2021=0 · 2022=12.4 · 2023=6.2 · 2024=5.4 · BLS 3.8
Where Koyama Construction Inc falls in its industry
698 Fire and flood restoration, si establishmentsSafer than 37% of graded establishments in this industry, whose median TCR is 6.1.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #51 safest of 78 Fire and flood restoration, si employers in California.
Koyama Construction Inc has fewer employees than the Fire and flood restoration, single-famil median and a higher injury rate than the industry's median TCR of 6.1. 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 | 0.0 | 1 | 0 | 0 |
| 2023 | 6.2 | 6.2 | 1 | 0 | 0 |
| 2022 | 12.4 | 12.4 | 1 | 1 | 0 |
| 2021 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2020 | 21.9 | 10.9 | 1 | 3 | 0 |
| 2019 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2018 | 9.5 | 4.8 | 2 | 0 | 0 |
OSHA ITA peer cross-reference
Establishment peer ledger
236118 · CA · Lockeford
698 Fire and flood restoration, single-family housing, general contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 7 employers in Lockeford, 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 | 21-JARDINES DE MONTELLANO | 7.9 TCR |
| NAICS-TCR | Springboro | 7.9 TCR |
| NAICS-TCR | K/S Renewal Systems, LLC 410 | 7.9 TCR |
| NAICS-TCR | Facilities | 7.9 TCR |
| STATE-SIZE | Sills Farms, Inc. | 20 FTE |
| STATE-SIZE | F A Maggiore & Sons, LLC | 20 FTE |
| STATE-SIZE | CALMEX CONTRACTING INC | 20 FTE |
| STATE-SIZE | Velvet Antler Ranch LLC | 20 FTE |
| CITY-NEAR | Lockeford | 80 FTE |
| CITY-NEAR | Lockeford Facility - 04 | 58 FTE |
| CITY-NEAR | Michael & Company | 48 FTE |
| CITY-NEAR | farm labor | 20 FTE |
| NAT-TCR | Denver North Care Center LLC | 7.9 TCR |
| NAT-TCR | Susquehanna Glass Company | 7.9 TCR |
| NAT-TCR | Queen Anne Healthcare | 7.9 TCR |
| NAT-TCR | Kingston | 7.9 TCR |
| NAT-SIZE | Ohio Valley Stow | 20 FTE |
| NAT-SIZE | 5278 - P78cos-Fpco-Cos Co | 20 FTE |
| NAT-SIZE | Moberly Hotel | 20 FTE |
| NAT-SIZE | Lignetics of Virginia | 20 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.