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.
- F
- Failing Safety Record
- 7.9
- avg TCR · per 100 workers
- 3.8
- industry benchmark (BLS)
- 6
- recordable injuries tracked
Grade compares Koyama Construction Inc's OSHA Total Case Rate to the BLS industry benchmark across 7 years of Form 300A filings (2016–2024). This reflects reported recordable injuries, not an independent safety inspection -- underreporting is a known limitation of employer self-recordkeeping.
Injury rate over time
Koyama Construction Inc's yearly Total Case Rate, against the 3.8 industry benchmark.
Where Koyama Construction Inc falls in its industry
788 Fire and flood restoration, si establishmentsSafer than 33% of graded establishments in this industry, whose median TCR is 5.4.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #58 safest of 85 Fire and flood restoration, si employers in California.
Koyama Construction Inc has an average TCR of 7.9, which is 208% of the industry average (3.8) for Fire and flood restoration, single-family housing, general contractors. This is significantly worse than average.
The letter grade is a transparent derived index PlainSafetyScore computes from public OSHA ITA and BLS benchmark data, not an official OSHA rating or safety certification. Full formula and thresholds: Methodology.
Trend analysis for Koyama Construction Inc
Between 2018 and 2024, Koyama Construction Inc's Total Case Rate improved from 9.5 to 5.4 recordable injuries per 100 full-time workers, a 44% decrease across 6 years of OSHA reporting.
The safest year on record was 2019, at a TCR of 0.0, while 2020 saw the highest rate, at 21.9, a spread of 21.9 points between the best and worst reporting years. That's a wide swing relative to the establishment's overall rate, worth checking the year-by-year table below for whether a single severe year is driving the average, rather than a sustained trend.
Summed across those 7 reporting years, Koyama Construction Inc recorded 6 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 7-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.
Verify This Employer with OSHA
All injury, illness, and fatality figures on this page are sourced from Koyama Construction Inc's own mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 236118 - Fire and flood restoration, single-family housing, general contractors.
DART Rate, Transparent Calculation (2024)
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
0 DART incidents × 200,000 ÷ 37,345 hours worked = 0.00 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Koyama Construction Inc (this establishment) | 7.91 | OSHA ITA Form 300A, 7-year avg |
| Construction management, residential remodeling industry avg | 3.80 | BLS IIF, NAICS 236118 |
| California state avg (all industries) | 5.64 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Koyama Construction Inc to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2024: 1 reportable incidents · 1 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2023: 1 reportable incidents · 1 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2022: 2 reportable incidents · 1 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2021: 0 reportable incidents · 0 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2020: 4 reportable incidents · 1 injuries, 3 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2019: 0 reportable incidents · 0 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2018: 2 reportable incidents · 2 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) - inspection case-number records
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 |
What this grade means for you
Use this grade as a relative read on Koyama Construction Inc's reported OSHA injury record versus its Fire and flood restoration, single-family housing, general contractors peers, not a verdict on whether any single site is safe today.
- At 208% of the Fire and flood restoration, single-family housing, general contractors benchmark, Koyama Construction Inc reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Fire and flood restoration, single-family housing, general contractors sector, where injury rates vary widely, before comparing it in isolation. See the industry
- Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another
Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.
Frequently Asked Questions
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Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.