Batteries, storage, manufacturing · California

Interspace Battery Corp.

West Covina, CA · ~43 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
8.5
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Interspace Battery Corp. runs at 258% of its industry's injury rate - far more dangerous than the typical Batteries, storage, manufacturing workplace, earning a grade F.

Interspace Battery Corp.: 8.5 TCR = 258% of Batteries, storage, manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Interspace Battery Corp. safety composite

Interspace Battery Corp. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 5%), 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

19/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.5 per 100 workers

Safer than 5% of industry peers

DART rate
F 4.75 per 100 workers

Safer than 11% of industry peers

Fatalities
D 0

Safer than 51% 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

−7.5

2023→2024

Interspace Battery Corp. injury rate improved

Interspace Battery Corp.'s TCR fell 7.5 from 12.3 in 2023 to 4.8 in 2024. Peak filing year was 2023 at 12.3 TCR. In 2024, DART was 0.56× this establishment's average TCR (severity share of cases).

2023=12.3 · 2024=4.8

OSHA ITA Form 300A scorecard

Establishment book 335911 · West Covina, CA ABOVE-IND · SMALL

Grade F · TCR 8.5 · 258% of ind

  • DART 4.8 DART
  • RANK #19/19
  • PHOTO EnerSys Tubing Plant
  • BOOK 2y book
  • INJ 8 inj
  • SIZE ~43 FTE

Nearest TCR peer: EnerSys Tubing Plant (0.2 TCR gap)

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

Interspace Battery Corp. in the TCR neighbourhood

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

TCR

What this shows Interspace Battery Corp. averages 8.5 TCR (258% of the Batteries, storage, manufacturing BLS benchmark).

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

Interspace Battery Corp. TCR series: 2023=12.3 · 2024=4.8 · BLS 3.3

Where Interspace Battery Corp. falls in its industry

161 Batteries, storage, manufactur establishments

Safer than 5% of graded establishments in this industry, whose median TCR is 2.1.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #19 safest of 19 Batteries, storage, manufactur employers in California.

Interspace Battery Corp. (43 employees, TCR 8.5) among 29 same-industry peers, split at the industry median of 107 employees and a TCR of 2.1 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 02,0004,0006,0008,000 05101520 Average employees Total Case Rate Interspace Battery Corp.
Interspace Battery Corp. (43 employees, TCR 8.5) among 29 same-industry peers, split at the industry median of 107 employees and a TCR of 2.1

Interspace Battery Corp. has fewer employees than the Batteries, storage, manufacturing median and a higher injury rate than the industry's median TCR of 2.1. 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 4.8 4.8 2 0 0
2023 12.3 6.1 6 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

335911 · CA · West Covina

161 Batteries, storage, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 71 employers in West Covina, CA · 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 EnerSys Tubing Plant 8.7 TCR
NAICS-TCR EnerSys 7.9 TCR
NAICS-TCR NorthStar Battery Plant 1 9.5 TCR
NAICS-TCR LGENSOL (Hazel Park) 7.4 TCR
STATE-SIZE Robert & Sandra Garcia Farming Partnership 43 FTE
STATE-SIZE ARVIN ADMINISTRATION 43 FTE
STATE-SIZE Donald W Beeman 43 FTE
STATE-SIZE KG Vineyard Management, LLC 43 FTE
CITY-NEAR Queen of the Valley Hospital 1,324 FTE
CITY-NEAR Ono-026 909 FTE
CITY-NEAR West Covina 485 315 FTE
CITY-NEAR Porto's Bakery West Covina, Inc 307 FTE
NAT-TCR Double D Delivers LLC 8.5 TCR
NAT-TCR South St. Paul 8.5 TCR
NAT-TCR Consolidated Industries Inc. 8.5 TCR
NAT-TCR Encompass Health Rehabilitation Hospital of Concord 8.5 TCR
NAT-SIZE Green Plains Otter Tail LLC 43 FTE
NAT-SIZE Penmarc Inspired Spaces, LLC 43 FTE
NAT-SIZE CBSI Baltimore 43 FTE
NAT-SIZE City of Benson 43 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. 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.