Abrasive products manufacturing · Pennsylvania

THERM-O-ROCK EAST, INC.- Donora Plant

Donora, PA · ~21 workers · 6 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
10.2
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

THERM-O-ROCK EAST, INC.- Donora Plant runs at 308% of its industry's injury rate - far more dangerous than the typical Abrasive products manufacturing workplace, earning a grade F.

THERM-O-ROCK EAST, INC.- Donora Plant: 10.2 TCR = 308% of Abrasive products manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

THERM-O-ROCK EAST, INC.- Donora Plant safety composite

THERM-O-ROCK EAST, INC.- Donora Plant scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 9%), 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).

F

20/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 10.16 per 100 workers

Safer than 11% of industry peers

DART rate
F 10.37 per 100 workers

Safer than 9% 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%).

TCR Δ

−7.4

2019→2024

THERM-O-ROCK EAST, INC.- Donora Plant injury rate improved

THERM-O-ROCK EAST, INC.- Donora Plant's TCR fell 7.4 from 23.0 in 2019 to 15.6 in 2024. Peak filing year was 2019 at 23.0 TCR. In 2024, DART was 1.02× this establishment's average TCR (severity share of cases).

2019=23.0 · 2020=0.0 · 2021=5.6 · 2022=0.0 · 2023=16.9 · 2024=15.6

OSHA ITA Form 300A scorecard

Establishment book 327910 · Donora, PA ABOVE-IND · SMALL

Grade F · TCR 10.2 · 308% of ind

  • DART 10.4 DART
  • RANK #6/7
  • PHOTO Carborundum Grinding…
  • BOOK 6y book
  • INJ 11 inj
  • SIZE ~21 FTE

Nearest TCR peer: Carborundum Grinding Wheel Company (0.1 TCR gap)

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

THERM-O-ROCK EAST, INC.- Donora Plant in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows THERM-O-ROCK EAST, INC.- Donora Plant averages 10.2 TCR (308% of the Abrasive products manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

THERM-O-ROCK EAST, INC.- Donora Plant TCR series: 2019=23 · 2020=0 · 2021=5.6 · 2022=0 · 2023=16.9 · 2024=15.6 · BLS 3.3

Where THERM-O-ROCK EAST, INC.- Donora Plant falls in its industry

90 Abrasive products manufacturin establishments

Safer than 11% of graded establishments in this industry, whose median TCR is 4.5.

More dangerous than peersSafer than peers

Narrower to Pennsylvania alone (the establishments it most directly competes with for workers and contracts): ranked #6 safest of 7 Abrasive products manufacturin employers in Pennsylvania.

THERM-O-ROCK EAST, INC.- Donora Plant (21 employees, TCR 10.2) among 29 same-industry peers, split at the industry median of 61 employees and a TCR of 4.5 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300400 051015 Average employees Total Case Rate THERM-O-ROCK EAST, INC.- Donora Plant
THERM-O-ROCK EAST, INC.- Donora Plant (21 employees, TCR 10.2) among 29 same-industry peers, split at the industry median of 61 employees and a TCR of 4.5

THERM-O-ROCK EAST, INC.- Donora Plant has fewer employees than the Abrasive products manufacturing median and a higher injury rate than the industry's median TCR of 4.5. 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
2024 15.6 10.4 2 1 0
2023 16.9 11.2 3 0 0
2022 0.0 0.0 0 0 0
2021 5.6 5.6 1 0 0
2020 0.0 0.0 0 0 0
2019 23.0 19.1 5 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

327910 · PA · Donora

90 Abrasive products manufacturing employers nationwide with a credible TCR · 22,692 rated employers in Pennsylvania with headcount on file · 12 employers in Donora, PA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Carborundum Grinding Wheel Company 10.3 TCR
NAICS-TCR Global Abrasives, Inc. - 62 Mill Street 10.0 TCR
NAICS-TCR Saint-Gobain Northampton 10.5 TCR
NAICS-TCR Rex-Cut Products, Inc. 9.5 TCR
STATE-SIZE Smiling Porker 21 FTE
STATE-SIZE STgenetics-PA Dairy 21 FTE
STATE-SIZE LUMA, Carolina Hangar 21 FTE
STATE-SIZE UGI Frackville 21 FTE
CITY-NEAR Regal Industrial Corporation 102 FTE
CITY-NEAR Apex North America, LLC. 52 FTE
CITY-NEAR 227 Mid Mon Valley Transit Pa 50 FTE
CITY-NEAR 227 - Mid Mon Valley Transit Pa 48 FTE
NAT-TCR Mountain View Nursing Home 10.2 TCR
NAT-TCR Capitol Commercial Glazing, LLC 10.2 TCR
NAT-TCR Para Los Ninos Adminstrative Office 10.2 TCR
NAT-TCR Lafayette Sales Branch 10.2 TCR
NAT-SIZE Runnings of Carrington 21 FTE
NAT-SIZE Hulcher Services Inc - Bloomington 21 FTE
NAT-SIZE Puente Hills Field Office 21 FTE
NAT-SIZE Tarjac H20 LLC 21 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: 2024, 2023, 2022, 2021, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.