Grape farming and making wine · California

Markham Vineyards

Name: Markham Vineyards Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

St Helena, CA · ~30 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 5.5
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Markham Vineyards runs at 166% of its industry's injury rate - more dangerous than the typical Grape farming and making wine workplace, earning a grade D.

Markham Vineyards: 5.5 TCR = 166% of Grape farming and making wine BLS 3.3 · 3y Form 300A (see methodology below)

Markham Vineyards safety composite

Markham Vineyards scores strongest on dart rate (safer than 82% of same-industry peers) and weakest on total case rate (tcr) (safer than 42%), 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).

58/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): D 5.48 per 100 workers

Safer than 42% 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%).

Rising injury rate

Markham Vineyards: 3.8 → 5.0 TCR

Peak year 2019 @ 7.7 TCR · DART/TCR 0× in 2020

Markham Vineyards's TCR rose 1.2 from 3.8 in 2018 to 5.0 in 2020. Peak filing year was 2019 at 7.7 TCR. In 2020, DART was 0× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 312130 · St Helena, CA ABOVE-IND · SMALL

Grade D · TCR 5.5 · 166% of ind

DART 0.0 DART
RANK #130/224
PHOTO EJ Gallo Winery-Fresno
BOOK 3y book
INJ 4 inj
SIZE ~30 FTE

Nearest TCR peer: EJ Gallo Winery-Fresno (0.0 TCR gap)

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This site

5.5
EJ Gallo Winer

5.5
ASV Wines, Inc

5.5
Cline Cellars

5.5
Ripon Winery

5.5

What this shows Markham Vineyards averages 5.5 TCR (166% of the Grape farming and making wine BLS benchmark).

Markham Vineyards TCR series: 2018=3.8 · 2019=7.7 · 2020=5 · BLS 3.3

Where Markham Vineyards falls in its industry

309 Grape farming and making wine establishments

Safer than 42% of graded establishments in this industry, whose median TCR is 4.9.

Grade D

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #130 safest of 224 Grape farming and making wine employers in California.

Markham Vineyards (30 employees, TCR 5.5) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 4.9

Markham Vineyards has fewer employees than the Grape farming and making wine median and a higher injury rate than the industry's median TCR of 4.9. 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
2020	5.0	0.0	1
2019	7.7	7.7	2
2018	3.8	3.8	1

OSHA ITA peer cross-reference

Establishment peer ledger

312130 · CA · St Helena

309 Grape farming and making wine employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 10 employers in St Helena, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	EJ Gallo Winery-Fresno	FRESNO, CA	5.5 TCR
NAICS-TCR	ASV Wines, Inc. San Martin	DELANO, CA	5.5 TCR
NAICS-TCR	Cline Cellars Inc	SONOMA, CA	5.5 TCR
NAICS-TCR	Ripon Winery	RIPON, CA	5.5 TCR
STATE-SIZE	BZNUR	PORTERVILLE	30 FTE
STATE-SIZE	1780 San Juan Rd.	AROMAS	30 FTE
STATE-SIZE	Charter Oaks	ARBUCKLE	30 FTE
STATE-SIZE	Greenfields Turf, Inc.	GREENFIELD	30 FTE
CITY-NEAR	NORTHERN REGION : LNU	St Helena	597 FTE
CITY-NEAR	Hall Wines	St Helena	179 FTE
CITY-NEAR	T and M Agricultural Services LLC	St Helena	86 FTE
CITY-NEAR	6962-SWY-0025-0025-02605	St Helena	74 FTE
NAT-TCR	2025 Coborn's Mitchell	Mitchell, SD	5.5 TCR
NAT-TCR	DUR	Durham, NC	5.5 TCR
NAT-TCR	Rabe's Quality Meat, Inc.	Omaha, NE	5.5 TCR
NAT-TCR	Holiday Inn West Medical Center	Amarillo, TX	5.5 TCR
NAT-SIZE	Heads Up Landscape SFE	Santa Fe, NM	30 FTE
NAT-SIZE	Eugene Plant	Eugene, OR	30 FTE
NAT-SIZE	Progreso LMMM Valley#5, LLC	Brownsville, TX	30 FTE
NAT-SIZE	Astec Rossville	Rossville, GA	30 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2020, 2019, 2018. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.