Masonry contractors · Idaho

Slattery Mitchell, Inc.

Nampa, ID · ~22 workers · 5 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.6
Avg TCR
2.8
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Slattery Mitchell, Inc. runs at 201% of its industry's injury rate - far more dangerous than the typical Masonry contractors workplace, earning a grade F.

Slattery Mitchell, Inc.: 5.6 TCR = 201% of Masonry contractors BLS 2.8 · 5y Form 300A (see methodology below)

Slattery Mitchell, Inc. safety composite

Slattery Mitchell, Inc. scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on dart rate (safer than 23%), 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

34/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.64 per 100 workers

Safer than 33% of industry peers

DART rate
F 4.65 per 100 workers

Safer than 23% 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%).

Rising injury rate

Slattery Mitchell, Inc.: 3.9 → 4.7 TCR

Peak year 2020 @ 14.6 TCR · DART/TCR 0.82× in 2023

Slattery Mitchell, Inc.'s TCR rose 0.7 from 3.9 in 2019 to 4.7 in 2023. Peak filing year was 2020 at 14.6 TCR. In 2023, DART was 0.82× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 238140 · Nampa, ID ABOVE-IND · SMALL

Grade F · TCR 5.6 · 201% of ind

  • DART 4.7 DART
  • RANK #3/5
  • PHOTO Palo Verde Plasterin…
  • BOOK 5y book
  • INJ 4 inj
  • SIZE ~22 FTE

Nearest TCR peer: Palo Verde Plastering, Inc (0.0 TCR gap)

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

Slattery Mitchell, Inc. in the TCR neighbourhood

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

TCR

What this shows Slattery Mitchell, Inc. averages 5.6 TCR (201% of the Masonry contractors BLS benchmark).

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

Slattery Mitchell, Inc. TCR series: 2019=3.9 · 2020=14.6 · 2021=5 · 2022=0 · 2023=4.7 · BLS 2.8

Where Slattery Mitchell, Inc. falls in its industry

703 Masonry contractors establishments

Safer than 33% of graded establishments in this industry, whose median TCR is 3.9.

More dangerous than peersSafer than peers

Narrower to Idaho alone (the establishments it most directly competes with for workers and contracts): ranked #3 safest of 5 Masonry contractors employers in Idaho.

Slattery Mitchell, Inc. (22 employees, TCR 5.6) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.9 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 0200400600 0246810 Average employees Total Case Rate Slattery Mitchell, Inc.
Slattery Mitchell, Inc. (22 employees, TCR 5.6) among 29 same-industry peers, split at the industry median of 52 employees and a TCR of 3.9

Slattery Mitchell, Inc. has fewer employees than the Masonry contractors median and a higher injury rate than the industry's median TCR of 3.9. 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 Illnesses Fatalities
2023 4.7 4.7 0 1 0
2022 0.0 0.0 0 0 0
2021 5.0 5.0 1 0 0
2020 14.6 14.6 2 2 0
2019 3.9 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238140 · ID · Nampa

703 Masonry contractors employers nationwide with a credible TCR · 2,774 rated employers in Idaho with headcount on file · 228 employers in Nampa, ID · 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 Palo Verde Plastering, Inc 5.6 TCR
NAICS-TCR Alban Masonry, LLC 5.6 TCR
NAICS-TCR J&S Masonry 5.7 TCR
NAICS-TCR MIDSTATE BASEMENT AUTHORITIES INC 5.7 TCR
STATE-SIZE Rising River Inc 22 FTE
STATE-SIZE Avista Sandpoint 22 FTE
STATE-SIZE 1140 - BELFOR Boise ID 22 FTE
STATE-SIZE DKB, Inc. Idaho Branch 22 FTE
CITY-NEAR Amazon.com Services LLC - BOI2 2,940 FTE
CITY-NEAR Saint Alphonsus Medical Center, Nampa (Garrity)-SAHS-ID/OR 1,047 FTE
CITY-NEAR Saint Alphonsus Medical Center Nampa 922 FTE
CITY-NEAR Lactalis Nampa 863 FTE
NAT-TCR Amazon.com Services LLC - MSP5 5.6 TCR
NAT-TCR Americlad, LLC - Rogers MN 5.6 TCR
NAT-TCR Woodbridge INOAC Technical Products, LLC 5.6 TCR
NAT-TCR Cape Cod Lumber Co., Inc. 5.6 TCR
NAT-SIZE FPH Construction, Inc. 22 FTE
NAT-SIZE Ascension At Home (Infusion) Marshfield 22 FTE
NAT-SIZE C&W Global - Hollister 22 FTE
NAT-SIZE Sanderson Farms Laurel Live Haul 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: 2023, 2022, 2021, 2020, 2019. 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.