Grape farming without making wine · California

Cornerstone Certified Vineyard

Name: Cornerstone Certified Vineyard Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Windsor, CA · ~55 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 6.3
Avg TCR: 4.5
Industry avg: 0
Fatalities

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The verdict

Cornerstone Certified Vineyard runs at 140% of its industry's injury rate - more dangerous than the typical Grape farming without making wine workplace, earning a grade D.

Cornerstone Certified Vineyard: 6.3 TCR = 140% of Grape farming without making wine BLS 4.5 · 3y Form 300A (see methodology below)

Cornerstone Certified Vineyard safety composite

Cornerstone Certified Vineyard scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on dart rate (safer than 30%), 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).

37/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 6.29 per 100 workers

Safer than 34% of industry peers
DART rate: F 4.51 per 100 workers

Safer than 30% of industry peers
Fatalities: D 0

Safer than 52% 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

Cornerstone Certified Vineyard: 4.1 → 6.8 TCR

Peak year 2020 @ 8.0 TCR · DART/TCR 0.72× in 2023

Cornerstone Certified Vineyard's TCR rose 2.7 from 4.1 in 2019 to 6.8 in 2023. Peak filing year was 2020 at 8.0 TCR. In 2023, DART was 0.72× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 111332 · Windsor, CA ABOVE-IND · SMALL

Grade D · TCR 6.3 · 140% of ind

DART 4.5 DART
RANK #99/151
PHOTO VF - Napa
BOOK 3y book
INJ 6 inj
SIZE ~55 FTE

Nearest TCR peer: VF - Napa (0.0 TCR gap)

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

Sun Pacific Fa

6.4
This site

6.3
VF - Napa

6.3
Hammonds Ranch

6.3
Sun Pacific Fa

6.2

What this shows Cornerstone Certified Vineyard averages 6.3 TCR (140% of the Grape farming without making wine BLS benchmark).

Cornerstone Certified Vineyard TCR series: 2019=4.1 · 2020=8 · 2023=6.8 · BLS 4.5

Where Cornerstone Certified Vineyard falls in its industry

162 Grape farming without making w establishments

Safer than 34% of graded establishments in this industry, whose median TCR is 4.6.

Grade D

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #99 safest of 151 Grape farming without making w employers in California.

Cornerstone Certified Vineyard (55 employees, TCR 6.3) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 4.6

Cornerstone Certified Vineyard has more employees than the Grape farming without making wine median and a higher injury rate than the industry's median TCR of 4.6. 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
2023	6.8	4.5	2	1
2020	8.0	8.0	3	0
2019	4.1	0.0	1	1

OSHA ITA peer cross-reference

Establishment peer ledger

111332 · CA · Windsor

162 Grape farming without making wine employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 58 employers in Windsor, 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	VF - Napa	NAPA, CA	6.3 TCR
NAICS-TCR	Hammonds Ranch, Inc.	FIREBAUGH, CA	6.3 TCR
NAICS-TCR	Sun Pacific Farming \| Grape Farming \| Maricopa	BAKERSFIELD, CA	6.4 TCR
NAICS-TCR	Sun Pacific Farming Cooperative, Inc \| Grape Harvesting	BAKERSFIELD, CA	6.2 TCR
STATE-SIZE	FARMING ADMINISTRATION	BAKERSFIELD	55 FTE
STATE-SIZE	Dwelley Family Farms LLC	OAKLEY	55 FTE
STATE-SIZE	Tri-Valley Vineyard Management	CLOVERDALE	55 FTE
STATE-SIZE	Garden View Inc.	MONROVIA	55 FTE
CITY-NEAR	2553	Windsor	256 FTE
CITY-NEAR	WM 2553	Windsor	237 FTE
CITY-NEAR	Oliver's Market Windsor	Windsor	216 FTE
CITY-NEAR	Russian River Brewing Company	Windsor	170 FTE
NAT-TCR	Bashas 053	Taylor, AZ	6.3 TCR
NAT-TCR	General Shale Moncure	Moncure, NC	6.3 TCR
NAT-TCR	Cape May Brewing Company	Cape May, NJ	6.3 TCR
NAT-TCR	Ypsilanti MI	Ypsilanti, MI	6.3 TCR
NAT-SIZE	Fagron Inc.	St. Paul, MN	55 FTE
NAT-SIZE	Courtyard by Marriott Minneapolis St Paul Airport	Mendota Heights, MN	55 FTE
NAT-SIZE	Dept. of Military & Veterans Affairs (8)	Jber, AK	55 FTE
NAT-SIZE	ORG Chem Group, LLC Evansville	Evansville, IN	55 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: 2023, 2020, 2019. 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.