Sewer pipe and fittings, clay, manufacturing · California

Mission Clay Products LLC

Corona, CA · ~22 workers · 6 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
11.5
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Mission Clay Products LLC runs at 348% of its industry's injury rate - far more dangerous than the typical Sewer pipe and fittings, clay, manufacturing workplace, earning a grade F.

Mission Clay Products LLC: 11.5 TCR = 348% of Sewer pipe and fittings, clay, manufacturing BLS 3.3 · 6y Form 300A (see methodology below)

Mission Clay Products LLC safety composite

Mission Clay Products LLC scores strongest on fatalities (safer than 50% 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

16/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 11.48 per 100 workers

Safer than 5% of industry peers

DART rate
F 9.62 per 100 workers

Safer than 5% 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

−9.6

2017→2022

Mission Clay Products LLC injury rate improved

Mission Clay Products LLC's TCR fell 9.6 from 19.2 in 2017 to 9.6 in 2022. Peak filing year was 2017 at 19.2 TCR. In 2022, DART was 0.84× this establishment's average TCR (severity share of cases).

2017=19.2 · 2018=11.5 · 2019=1.1 · 2020=16.0 · 2021=11.3 · 2022=9.6

OSHA ITA Form 300A scorecard

Establishment book 327120 · Corona, CA ABOVE-IND · SMALL

Grade F · TCR 11.5 · 348% of ind

  • DART 9.6 DART
  • RANK #14/14
  • PHOTO Allied Mineral Produ…
  • BOOK 6y book
  • INJ 16 inj
  • SIZE ~22 FTE

Nearest TCR peer: Allied Mineral Products - Chehalis (0.2 TCR gap)

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

Mission Clay Products LLC in the TCR neighbourhood

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

TCR

What this shows Mission Clay Products LLC averages 11.5 TCR (348% of the Sewer pipe and fittings, clay, manufacturing BLS benchmark).

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

Mission Clay Products LLC TCR series: 2017=19.2 · 2018=11.5 · 2019=1.1 · 2020=16 · 2021=11.3 · 2022=9.6 · BLS 3.3

Where Mission Clay Products LLC falls in its industry

307 Sewer pipe and fittings, clay, establishments

Safer than 5% of graded establishments in this industry, whose median TCR is 3.7.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #14 safest of 14 Sewer pipe and fittings, clay, employers in California.

Mission Clay Products LLC (22 employees, TCR 11.5) among 29 same-industry peers, split at the industry median of 57 employees and a TCR of 3.7 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 0200400600800 051015 Average employees Total Case Rate Mission Clay Products LLC
Mission Clay Products LLC (22 employees, TCR 11.5) among 29 same-industry peers, split at the industry median of 57 employees and a TCR of 3.7

Mission Clay Products LLC has fewer employees than the Sewer pipe and fittings, clay, manufactu median and a higher injury rate than the industry's median TCR of 3.7. 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
2022 9.6 9.6 2 0 0
2021 11.3 11.3 2 0 0
2020 16.0 16.0 1 2 0
2019 1.1 0.0 3 0 0
2018 11.5 0.0 3 0 0
2017 19.2 3.9 5 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

327120 · CA · Corona

307 Sewer pipe and fittings, clay, manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 409 employers in Corona, 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 Allied Mineral Products - Chehalis 11.7 TCR
NAICS-TCR Rex Materials Group 11.3 TCR
NAICS-TCR Bigler plant 10.8 TCR
NAICS-TCR Cherokee Brick & Tile Company, Tri-State Plant 10.4 TCR
STATE-SIZE LaGrande Farms 22 FTE
STATE-SIZE Del Carlo Farms, Inc. 22 FTE
STATE-SIZE Linda Vista Farms 22 FTE
STATE-SIZE MOUNTAIN VIEW FARM SHOP 22 FTE
CITY-NEAR Monster Energy Company 2535 Anselmo Dr 2,572 FTE
CITY-NEAR Monster Energy Company 2,388 FTE
CITY-NEAR Monster Energy Company - Anselmo Dr, Corona 2,335 FTE
CITY-NEAR California Department of Transportation Facility 289 1,587 FTE
NAT-TCR Regency at Northpointe 11.5 TCR
NAT-TCR Ace Elastomer 11.5 TCR
NAT-TCR 0559 - Indianapolis DC 11.5 TCR
NAT-TCR West Memphis Steel Corporation 11.5 TCR
NAT-SIZE Tiff's Treats - A5 22 FTE
NAT-SIZE Gavilon Grain - Abilene Flint Hills 22 FTE
NAT-SIZE Country Meadows 22 FTE
NAT-SIZE Sibley 22 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: 2022, 2021, 2020, 2019, 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.