Wineries · California

Markham Vineyards (Operations)

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

St. Helena, CA · ~20 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

B
Good Safety Record: 2.1
Avg TCR: 3.3
Industry avg: 0
Fatalities

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The verdict

Markham Vineyards (Operations) runs at 62% of its industry's injury rate - safer than the typical Wineries workplace, earning a grade B.

Markham Vineyards (Operations): 2.1 TCR = 62% of Wineries BLS 3.3 · 2y Form 300A (see methodology below)

Markham Vineyards (Operations) safety composite

Markham Vineyards (Operations) scores strongest on total case rate (tcr) (safer than 86% of same-industry peers) and weakest on dart rate (safer than 33%), 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): B 2.06 per 100 workers

Safer than 86% of industry peers
DART rate: F 4.12 per 100 workers

Safer than 33% 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 (Operations): 0.0 → 4.1 TCR

Peak year 2022 @ 4.1 TCR · DART/TCR 2× in 2022

Markham Vineyards (Operations)'s TCR rose 4.1 from 0.0 in 2021 to 4.1 in 2022. In 2022, DART was 2× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 312130 · St. Helena, CA AT/BELOW-IND · SMALL

Grade B · TCR 2.1 · 62% of ind

DART 4.1 DART
RANK #31/224
PHOTO Round Barn Winery
BOOK 2y book
INJ 1 inj
SIZE ~20 FTE

Nearest TCR peer: Round Barn Winery (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

This site

2.1
Mission Bell W

2.1
Round Barn Win

2
Chehalem Winer

2
Heck Cellars

2

What this shows Markham Vineyards (Operations) averages 2.1 TCR (62% of the Wineries BLS benchmark).

Markham Vineyards (Operations) TCR series: 2021=0 · 2022=4.1 · BLS 3.3

Where Markham Vineyards (Operations) falls in its industry

309 Wineries establishments

Safer than 86% of graded establishments in this industry, whose median TCR is 4.9.

Grade B

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #31 safest of 224 Wineries employers in California.

Markham Vineyards (Operations) (20 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 54 employees and a TCR of 4.9

Markham Vineyards (Operations) has fewer employees than the Wineries median and a lower 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	Illnesses	Fatalities
2022	4.1	4.1	1	0	0
2021	0.0	0.0	0	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

312130 · CA · St. Helena

309 Wineries employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 26 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	Round Barn Winery	BARODA, MI	2.0 TCR
NAICS-TCR	Chehalem Winery	NEWBERG, OR	2.0 TCR
NAICS-TCR	Mission Bell Winery	MADERA, CA	2.1 TCR
NAICS-TCR	Heck Cellars	ARVIN, CA	2.0 TCR
STATE-SIZE	Sills Farms, Inc.	PLEASANT GROVE	20 FTE
STATE-SIZE	F A Maggiore & Sons, LLC	BRENTWOOD	20 FTE
STATE-SIZE	CALMEX CONTRACTING INC	PORTERVILLE	20 FTE
STATE-SIZE	Velvet Antler Ranch LLC	LINDEN	20 FTE
CITY-NEAR	Boisset Collection	St. Helena	287 FTE
CITY-NEAR	Alila Napa Valley	St. Helena	142 FTE
CITY-NEAR	Nissen Vineyard Services Inc.	St. Helena	134 FTE
CITY-NEAR	Servin-Lopez Vineyard Management, Inc	St. Helena	94 FTE
NAT-TCR	Storage Express Management LLC	Bloomington, IN	2.1 TCR
NAT-TCR	Atomic Distributing Company	Huntington, WV	2.1 TCR
NAT-TCR	Constant Aviation- CLM, Cleveland Hopkins Airport	Cleveland, OH	2.1 TCR
NAT-TCR	GM Bedford Foundry	Bedford, IN	2.1 TCR
NAT-SIZE	Les Schwab Tire Center-Boise Broadway	Boise, ID	20 FTE
NAT-SIZE	Tri State Trailer Sales Inc.	Lancaster, PA	20 FTE
NAT-SIZE	Athens, 63	Athens, NY	20 FTE
NAT-SIZE	Plant 2 & 4, Rule Steel	Caldwell, ID	20 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: 2022, 2021. 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.