County of Lake
Open-data reference.
LAKEPORT, CA | Boards of supervisors, county and local
~981 avg employees | 4 years of OSHA data
County of Lake has an average TCR of 8.5, which is 264% of the industry average (3.2) for Boards of supervisors, county and local. This is significantly worse than average.
Safety Insights for County of Lake
County of Lake operates an establishment with approximately 981 full-time equivalent workers in LAKEPORT, CA, classified under the Boards of supervisors, county and local industry (NAICS 921120). Across 4 years of mandatory OSHA Injury Tracking Application (ITA) reporting, this employer has accumulated 134 recordable injuries, 133 occupational illnesses, and 0 workplace fatalities. The average Total Case Rate (TCR) of 8.5 injuries per 100 full-time workers per year provides the anchor metric for the F letter grade (Failing Safety Record).
Benchmarked against the Bureau of Labor Statistics industry average of 3.2 for Boards of supervisors, county and local, County of Lake's workforce experiences 264% of the typical injury burden. This ratio matters because TCR already normalizes for hours worked — a 200,000-hour exposure base equals roughly 100 full-time workers — so establishments with very different headcounts can be compared directly. A TCR above the benchmark flags a higher-than-typical risk profile for jobseekers, insurers, and enforcement agencies to examine.
Multi-year trend analysis is the single most reliable signal here: a one-year spike could reflect a single severe event, whereas sustained elevation across 4 reporting cycles points to systemic hazard exposure. Readers evaluating County of Lake as an employer, contractor, investment, or regulatory target should examine the yearly DART rate (days away, restricted, or transferred), the fatality count of 0, and any year-over-year deterioration shown in the table below. All figures come directly from employer-submitted OSHA Form 300A summaries — there is no modeling, estimation, or third-party adjustment layered on top of the government data.
Verify This Employer with OSHA
All injury, illness, and fatality figures on this page are sourced from County of Lake'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 921120 — Boards of supervisors, county and local.
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.
63 DART incidents × 200,000 ÷ 1,592,000 hours worked = 7.91 DART
Methodology: 29 CFR 1904 — OSHA Form 300A recordkeeping
Cross-Validating Context — Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| County of Lake (this establishment) | 8.46 | OSHA ITA Form 300A, 4-year avg |
| Legislative bodies (e.g., federal, local, and state) industry avg | 3.20 | BLS IIF, NAICS 921120 |
| California state avg (all industries) | 58.88 | 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 County of Lake 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: 95 reportable incidents · 55 injuries, 40 illnesses, 0 fatalities — OSHA inspection records (case numbers)
- 2023: 81 reportable incidents · 34 injuries, 47 illnesses, 0 fatalities — OSHA inspection records (case numbers)
- 2022: 52 reportable incidents · 22 injuries, 30 illnesses, 0 fatalities — OSHA inspection records (case numbers)
- 2021: 39 reportable incidents · 23 injuries, 16 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 | 11.9 | 7.9 | 55 | 40 | 0 |
| 2023 | 10.2 | 8.0 | 34 | 47 | 0 |
| 2022 | 6.6 | 5.3 | 22 | 30 | 0 |
| 2021 | 5.1 | 4.1 | 23 | 16 | 0 |
Frequently Asked Questions
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Read our methodology — how this data is sourced, computed, and verified.