Valves, plumbing and heating, merchant wholesalers · Massachusetts
Hydroserve, LLC dba Gustavo Preston Company
Chelmsford, MA · ~91 workers · 2 years of OSHA Injury Tracking Application data.
- D
- Poor Safety Record
- 3.6
- Avg TCR
- 2.2
- Industry avg
- 0
- Fatalities
The verdict
Hydroserve, LLC dba Gustavo Preston Company runs at 164% of its industry's injury rate - more dangerous than the typical Valves, plumbing and heating, merchant wholesalers workplace, earning a grade D.
- D
- Poor Safety Record
- 3.6
- avg TCR · per 100 workers
- 2.2
- industry benchmark (BLS)
- 7
- recordable injuries tracked
Grade compares Hydroserve, LLC dba Gustavo Preston Company's OSHA Total Case Rate of 3.6 to the Valves, plumbing and heating, merchant wholesalers BLS benchmark of 2.2 (164% of benchmark) across 2 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.
Injury rate over time
Hydroserve, LLC dba Gustavo Preston Company's yearly Total Case Rate, against the 2.2 industry benchmark.
Where Hydroserve, LLC dba Gustavo Preston Company falls in its industry
1,003 Valves, plumbing and heating, establishmentsSafer than 39% of graded establishments in this industry, whose median TCR is 2.8.
Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #22 safest of 41 Valves, plumbing and heating, employers in Massachusetts.
Verify This Employer with OSHA
The 7 injuries, 1 illnesses shown on this page for Hydroserve, LLC dba Gustavo Preston Company are sourced from its own 2 years of mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 423720 - Valves, plumbing and heating, merchant wholesalers.
DART Rate, Transparent Calculation (2024)
What is the DART rate formula?
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
3 DART incidents × 200,000 ÷ 5,815 hours worked = 103.18 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Hydroserve, LLC dba Gustavo Preston Company (this establishment) | 3.60 | OSHA ITA Form 300A, 2-year avg |
| Plumbing supplies merchant wholesalers industry avg | 2.20 | BLS IIF, NAICS 423720 |
| Massachusetts state avg (all industries) | 4.94 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Hydroserve, LLC dba Gustavo Preston Company to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2024: 5 reportable incidents · 4 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2023: 3 reportable incidents · 3 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) - inspection case-number records
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2024 | 172.0 | 103.2 | 4 | 1 | 0 |
| 2023 | 3.6 | 2.4 | 3 | 0 | 0 |
What this grade means for you
Use this grade as a relative read on Hydroserve, LLC dba Gustavo Preston Company's reported OSHA injury record versus its Valves, plumbing and heating, merchant wholesalers peers, not a verdict on whether any single site is safe today.
- At 164% of the Valves, plumbing and heating, merchant wholesalers benchmark, Hydroserve, LLC dba Gustavo Preston Company reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Valves, plumbing and heating, merchant wholesalers sector, where injury rates vary widely, before comparing it in isolation. See the industry
- Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another
Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.
Frequently Asked Questions
What is Hydroserve, LLC dba Gustavo Preston Company's safety grade?
How many injuries has Hydroserve, LLC dba Gustavo Preston Company reported?
Similar Employers
Matched by safety record across the industry, by workforce size within Massachusetts, and by nearby establishments in Chelmsford - a different peer set than the category browse links below.
Similar TCR (~3.6)
Similar size (~91 workers)
Read our methodology - how this data is sourced, computed, and verified.
Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.