HVAC (heating, ventilation and air-conditioning) contractors · Pennsylvania

Clark Service Group

Lancaster, PA · ~167 workers · 3 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.8
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Clark Service Group runs at 208% of its industry's injury rate - far more dangerous than the typical HVAC (heating, ventilation and air-conditioning) contractors workplace, earning a grade F.

Clark Service Group: 5.8 TCR = 208% of HVAC (heating, ventilation and air-conditioning) contractors BLS 2.8 · 3y Form 300A (see methodology below)

Clark Service Group safety composite

Clark Service Group scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 28%), 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).

D

40/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.82 per 100 workers

Safer than 28% of industry peers

DART rate
D 1.42 per 100 workers

Safer than 47% 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

−1.0

2016→2019

Clark Service Group injury rate improved

Clark Service Group's TCR fell 1.0 from 7.4 in 2016 to 6.4 in 2019. Peak filing year was 2016 at 7.4 TCR. In 2019, DART was 0.24× this establishment's average TCR (severity share of cases).

2016=7.4 · 2018=3.7 · 2019=6.4

OSHA ITA Form 300A scorecard

Establishment book 238220 · Lancaster, PA ABOVE-IND · MID

Grade F · TCR 5.8 · 208% of ind

  • DART 1.4 DART
  • RANK #188/268
  • PHOTO Williams Plumbing an…
  • BOOK 3y book
  • INJ 22 inj
  • SIZE ~167 FTE

Nearest TCR peer: Williams Plumbing and Heating (0.0 TCR gap)

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

Clark Service Group in the TCR neighbourhood

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

TCR

What this shows Clark Service Group averages 5.8 TCR (208% of the HVAC (heating, ventilation and air-conditioning) contractors BLS benchmark).

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

Clark Service Group TCR series: 2016=7.4 · 2018=3.7 · 2019=6.4 · BLS 2.8

Where Clark Service Group falls in its industry

5,793 HVAC (heating, ventilation and establishments

Safer than 28% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Pennsylvania alone (the establishments it most directly competes with for workers and contracts): ranked #188 safest of 268 HVAC (heating, ventilation and employers in Pennsylvania.

Clark Service Group (167 employees, TCR 5.8) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 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 050100150200250 05101520 Average employees Total Case Rate Clark Service Group
Clark Service Group (167 employees, TCR 5.8) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Clark Service Group has more employees than the HVAC (heating, ventilation and air-condi median and a higher injury rate than the industry's median TCR of 3.3. 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
2019 6.4 1.4 9 0 0
2018 3.7 0.7 5 0 0
2016 7.4 0.9 8 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · PA · Lancaster

5,793 HVAC (heating, ventilation and air-conditioning) contractors employers nationwide with a credible TCR · 22,692 rated employers in Pennsylvania with headcount on file · 450 employers in Lancaster, PA · 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 Williams Plumbing and Heating 5.8 TCR
NAICS-TCR Coulee Region Mechanical Contractors, Inc. 5.8 TCR
NAICS-TCR Christianson Round Rock 5.8 TCR
NAICS-TCR Dunedin Refrigeration 5.8 TCR
STATE-SIZE Rice Fruit Company 167 FTE
STATE-SIZE Brothers 167 FTE
STATE-SIZE Wellington Power Corporation 167 FTE
STATE-SIZE USA PA Cranberry Township 167 FTE
CITY-NEAR Lancaster General Health, LGH Hospital 7,424 FTE
CITY-NEAR LGHealth 7,215 FTE
CITY-NEAR Lancaster General Hospital 6,528 FTE
CITY-NEAR Lancaster General Medical Group 1,436 FTE
NAT-TCR New Haven Store 5.8 TCR
NAT-TCR C&B-Pinnacle Clearwater FL 350 5.8 TCR
NAT-TCR Sam Houston TX 5.8 TCR
NAT-TCR REN150 Burlingame 5.8 TCR
NAT-SIZE Winholt-TX 167 FTE
NAT-SIZE D.E. Rice Construciton Company Inc. 167 FTE
NAT-SIZE HSI Sensing 167 FTE
NAT-SIZE Golden Age Senior Care of El Paso, LLC 167 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: 2019, 2018, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.