Excavating, earthmoving, or land clearing contractors · California

Diablo General Engineering

Name: Diablo General Engineering Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Pleasant Hill, CA · ~28 workers · 2 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

F
Failing Safety Record: 6.5
Avg TCR: 2.8
Industry avg: 0
Fatalities

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The verdict

Diablo General Engineering runs at 230% of its industry's injury rate - far more dangerous than the typical Excavating, earthmoving, or land clearing contractors workplace, earning a grade F.

Diablo General Engineering: 6.5 TCR = 230% of Excavating, earthmoving, or land clearing contractors BLS 2.8 · 2y Form 300A (see methodology below)

Diablo General Engineering safety composite

Diablo General Engineering scores strongest on fatalities (safer than 52% of same-industry peers) and weakest on total case rate (tcr) (safer than 13%), 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).

26/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 6.45 per 100 workers

Safer than 13% of industry peers
DART rate: F 3.03 per 100 workers

Safer than 23% 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

Diablo General Engineering: 3.8 → 9.1 TCR

Peak year 2023 @ 9.1 TCR · DART/TCR 0.47× in 2023

Diablo General Engineering's TCR rose 5.3 from 3.8 in 2022 to 9.1 in 2023. In 2023, DART was 0.47× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238910 · Pleasant Hill, CA ABOVE-IND · SMALL

Grade F · TCR 6.5 · 230% of ind

DART 3.0 DART
RANK #156/184
PHOTO Mattiola Services
BOOK 2y book
INJ 4 inj
SIZE ~28 FTE

Nearest TCR peer: Mattiola Services (0.0 TCR gap)

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This site

6.5
Mattiola Servi

6.5
Straw Construc

6.5
willamette con

6.5
Final Grade In

6.4

What this shows Diablo General Engineering averages 6.5 TCR (230% of the Excavating, earthmoving, or land clearing contractors BLS benchmark).

Diablo General Engineering TCR series: 2022=3.8 · 2023=9.1 · BLS 2.8

Where Diablo General Engineering falls in its industry

1,750 Excavating, earthmoving, or la establishments

Safer than 13% of graded establishments in this industry, whose median TCR is 2.5.

Grade F

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #156 safest of 184 Excavating, earthmoving, or la employers in California.

Diablo General Engineering (28 employees, TCR 6.5) among 29 same-industry peers, split at the industry median of 51 employees and a TCR of 2.5

Diablo General Engineering has fewer employees than the Excavating, earthmoving, or land clearin median and a higher injury rate than the industry's median TCR of 2.5. 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
2023	9.1	3.0	3	0	0
2022	3.8	0.0	1	0	0

OSHA ITA peer cross-reference

Establishment peer ledger

238910 · CA · Pleasant Hill

1,750 Excavating, earthmoving, or land clearing contractors employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 44 employers in Pleasant Hill, 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	Mattiola Services	SKIPPACK, PA	6.5 TCR
NAICS-TCR	Straw Construction Office and Yard	BOSWELL, PA	6.5 TCR
NAICS-TCR	willamette construction services inc.	PORTLAND, OR	6.5 TCR
NAICS-TCR	Final Grade Inc	JORDAN, MN	6.4 TCR
STATE-SIZE	Davis Ranch L.L.C.	SLOUGHHOUSE	28 FTE
STATE-SIZE	Steinbeck Country Produce	SALINAS	28 FTE
STATE-SIZE	Harlan Family Ranch	WOODLAND	28 FTE
STATE-SIZE	KKG Equipment Company, LLC32	RUTHERFORD	28 FTE
CITY-NEAR	0330 - Pleasant Hill	Pleasant Hill	217 FTE
CITY-NEAR	Concord Feed & Fuel	Pleasant Hill	167 FTE
CITY-NEAR	6962-SWY-0025-0025-02941	Pleasant Hill	156 FTE
CITY-NEAR	SWY-0025-0025-02941 FAC-02941-PLEASANT HILL-CA	Pleasant Hill	147 FTE
NAT-TCR	Pmg Pa	Philipsburg, PA	6.5 TCR
NAT-TCR	O'Malley Timber Products	Tappahannock, VA	6.5 TCR
NAT-TCR	Topp Industries, Inc.	Rochester, IN	6.5 TCR
NAT-TCR	AgMart Produce SFL	Immokalee, FL	6.5 TCR
NAT-SIZE	Paul Mattuchio Inc.	Everett, MA	28 FTE
NAT-SIZE	Robinson and Sons Construction Services, Inc.	Haleyville, AL	28 FTE
NAT-SIZE	Brookdale Mount Vernon Drive	Cleveland, TN	28 FTE
NAT-SIZE	Woodley's Fine Furniture KL Store	Centennial, CO	28 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, 2022. 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.