Blast furnace slag processing · Pennsylvania

OTK Calvert

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

Seven Fields, PA · ~87 workers · 3 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

A
Excellent Safety Record: 0.7
Avg TCR: 3.3
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

OTK Calvert runs at 22% of its industry's injury rate - far safer than the typical Blast furnace slag processing workplace, earning a grade A.

OTK Calvert: 0.7 TCR = 22% of Blast furnace slag processing BLS 3.3 · 3y Form 300A (see methodology below)

OTK Calvert safety composite

OTK Calvert scores strongest on total case rate (tcr) (safer than 92% of same-industry peers) and weakest on dart rate (safer than 48%), 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).

66/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): A 0.73 per 100 workers

Safer than 92% of industry peers
DART rate: D 0.92 per 100 workers

Safer than 48% 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

OTK Calvert: 0.0 → 0.9 TCR

Peak year 2023 @ 1.3 TCR · DART/TCR 1.26× in 2024

OTK Calvert's TCR rose 0.9 from 0.0 in 2022 to 0.9 in 2024. Peak filing year was 2023 at 1.3 TCR. In 2024, DART was 1.26× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 327992 · Seven Fields, PA AT/BELOW-IND · SMALL

Grade A · TCR 0.7 · 22% of ind

DART 0.9 DART
RANK #2/19
PHOTO TMS - BRS
BOOK 3y book
INJ 2 inj
SIZE ~87 FTE

Nearest TCR peer: TMS - BRS (0.0 TCR gap)

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

Midlothian

0.8
ASA Newport

0.8
This site

0.7
TMS - BRS

0.7
SSAB Iowa

0.7

What this shows OTK Calvert averages 0.7 TCR (22% of the Blast furnace slag processing BLS benchmark).

OTK Calvert TCR series: 2022=0 · 2023=1.3 · 2024=0.9 · BLS 3.3

Where OTK Calvert falls in its industry

97 Blast furnace slag processing establishments

Safer than 92% of graded establishments in this industry, whose median TCR is 1.9.

Grade A

More dangerous than peersSafer than peers

Narrower to Pennsylvania alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 19 Blast furnace slag processing employers in Pennsylvania.

OTK Calvert (87 employees, TCR 0.7) among 29 same-industry peers, split at the industry median of 41 employees and a TCR of 1.9

OTK Calvert has more employees than the Blast furnace slag processing median and a lower injury rate than the industry's median TCR of 1.9. 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
2024	0.9	0.9	1
2023	1.3	1.3	1
2022	0.0	0.0	0

OSHA ITA peer cross-reference

Establishment peer ledger

327992 · PA · Seven Fields

97 Blast furnace slag processing employers nationwide with a credible TCR · 22,692 rated employers in Pennsylvania with headcount on file · 15 employers in Seven Fields, PA · 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	TMS - BRS	OSCEOLA, AR	0.7 TCR
NAICS-TCR	Midlothian	SEVEN FIELDS, PA	0.8 TCR
NAICS-TCR	SSAB Iowa	SEVEN FIELDS, PA	0.7 TCR
NAICS-TCR	ASA Newport	NEWPORT, AR	0.8 TCR
STATE-SIZE	Adams County Nursery Inc	ASPERS	87 FTE
STATE-SIZE	Handwerk Site Contractors	HUMMELSTOWN	87 FTE
STATE-SIZE	1400	KING OF PRUSSIA	87 FTE
STATE-SIZE	David M. Maines Associates, Inc.	LEWISTOWN	87 FTE
CITY-NEAR	Giant Eagle #0042	Seven Fields	246 FTE
CITY-NEAR	OSH Pitt North	Seven Fields	223 FTE
CITY-NEAR	Open Systems Healthcare - Pitt North	Seven Fields	157 FTE
CITY-NEAR	Harsco Pittsburgh Office	Seven Fields	67 FTE
NAT-TCR	PCC Community Markets - Office	Seattle, WA	0.7 TCR
NAT-TCR	Great Dane Central Fabrication	Terre Haute, IN	0.7 TCR
NAT-TCR	Glacier Construction CO INC.	Centennial, CO	0.7 TCR
NAT-TCR	Pepperidge Farm, Inc.	Willard, OH	0.7 TCR
NAT-SIZE	Research Organics LLC	Cleveland, OH	87 FTE
NAT-SIZE	Hood Container Greensboro	Jamestown, NC	87 FTE
NAT-SIZE	JLRNA	Austin, TX	87 FTE
NAT-SIZE	MISA Specialty Processing	Jackson, MI	87 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. 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.