Custodial services · Maryland

Chimes District of Columbia, Aberdeen Proving Ground

Aberdeen, MD · ~57 workers · 5 years of OSHA Injury Tracking Application data.

B
Good Safety Record
3.0
Avg TCR
4.5
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

Chimes District of Columbia, Aberdeen Proving Ground runs at 66% of its industry's injury rate - safer than the typical Custodial services workplace, earning a grade B.

Chimes District of Columbia, Aberdeen Proving Ground: 3.0 TCR = 66% of Custodial services BLS 4.5 · 5y Form 300A (see methodology below)

Chimes District of Columbia, Aberdeen Proving Ground safety composite

Chimes District of Columbia, Aberdeen Proving Ground scores strongest on dart rate (safer than 78% of same-industry peers) and weakest on fatalities (safer than 50%), 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).

C

61/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 2.95 per 100 workers

Safer than 53% of industry peers

DART rate
B 0 per 100 workers

Safer than 78% 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

−2.5

2019→2024

Chimes District of Columbia, Aberdeen Proving Ground injury rate improved

Chimes District of Columbia, Aberdeen Proving Ground's TCR fell 2.5 from 2.5 in 2019 to 0.0 in 2024. Peak filing year was 2023 at 12.2 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2019=2.5 · 2020=0.0 · 2022=0.0 · 2023=12.2 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 561720 · Aberdeen, MD AT/BELOW-IND · SMALL

Grade B · TCR 3.0 · 66% of ind

  • DART 0.0 DART
  • RANK #31/52
  • PHOTO 4M - San Antonio
  • BOOK 5y book
  • INJ 2 inj
  • SIZE ~57 FTE

Nearest TCR peer: 4M - San Antonio (0.0 TCR gap)

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

Chimes District of Columbia, Aberdeen Proving Ground in the TCR neighbourhood

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

TCR

What this shows Chimes District of Columbia, Aberdeen Proving Ground averages 3.0 TCR (66% of the Custodial services BLS benchmark).

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

Chimes District of Columbia, Aberdeen Proving Ground TCR series: 2019=2.5 · 2020=0 · 2022=0 · 2023=12.2 · 2024=0 · BLS 4.5

Where Chimes District of Columbia, Aberdeen Proving Ground falls in its industry

4,064 Custodial services establishments

Safer than 53% of graded establishments in this industry, whose median TCR is 3.2.

More dangerous than peersSafer than peers

Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #31 safest of 52 Custodial services employers in Maryland.

Chimes District of Columbia, Aberdeen Proving Ground (57 employees, TCR 3.0) among 29 same-industry peers, split at the industry median of 56 employees and a TCR of 3.2 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 02004006008001,000 051015 Average employees Total Case Rate Chimes District of Columbia, Aberdeen Proving Ground
Chimes District of Columbia, Aberdeen Proving Ground (57 employees, TCR 3.0) among 29 same-industry peers, split at the industry median of 56 employees and a TCR of 3.2

Chimes District of Columbia, Aberdeen Proving Ground has more employees than the Custodial services median and a lower injury rate than the industry's median TCR of 3.2. 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 0.0 0.0 0 0 0
2023 12.2 12.2 1 0 0
2022 0.0 0.0 0 0 0
2020 0.0 0.0 0 0 0
2019 2.5 2.5 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

561720 · MD · Aberdeen

4,064 Custodial services employers nationwide with a credible TCR · 7,213 rated employers in Maryland with headcount on file · 60 employers in Aberdeen, MD · 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 4M - San Antonio 3.0 TCR
NAICS-TCR Premiere Building Maintenance Corporation 3.0 TCR
NAICS-TCR Baptist Hospital East 3.0 TCR
NAICS-TCR PSSI - 0233 Tyson - Portland 3.0 TCR
STATE-SIZE 5901 COBB RD FACILITY 57 FTE
STATE-SIZE DRB Group - Metro 57 FTE
STATE-SIZE Chamberlain Contractors, LLC 57 FTE
STATE-SIZE Royals Commercial of Maryland- Alpha #138 57 FTE
CITY-NEAR Amazon.com Services LLC - MTN2 903 FTE
CITY-NEAR ABERDEEN LOCATION 863 FTE
CITY-NEAR ABERDEEN PLANT 861 FTE
CITY-NEAR Rite Aid Distribution 855 FTE
NAT-TCR Church of St Wenceslaus 3.0 TCR
NAT-TCR Premiere Building Maintenance Corporation 3.0 TCR
NAT-TCR 1886 - Jersey City 3.0 TCR
NAT-TCR Monumental Management, Inc. 3.0 TCR
NAT-SIZE Arc Allegany-Steuben- Witkowski 57 FTE
NAT-SIZE Coffee Break Roasting Company 57 FTE
NAT-SIZE Hopewell 57 FTE
NAT-SIZE Dickinson Homes 57 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, 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.