Central Distribution

FW Webb Company

10 Webb Drive, Londonderry, NH 3053
Plumbing supplies merchant wholesalers (NAICS 423720)

DART 7.85 21 recordable cases · 232 avg employees · 509,279 hours worked

This establishment vs. the industry

The DART rate at this establishment is 1.9× the industry median.

This establishment: 7.85
Industry median (423720, n=533): 4.05

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases6 Restricted-duty / transferred cases14 Other recordable cases1 Total recordable cases21 Days lost to injury258

Injury rates (per 100 FTE-year, OSHA standard)

DART rate7.85 (days away + restricted/transferred) DAFW rate2.36 (days away from work only) Total recordable rate (TRIR)8.25 (all OSHA-recordable cases) Annual average employees232 Total hours worked509,279
What these numbers mean. An OSHA-recordable case is a work-related injury or illness that resulted in death, days away from work, restricted work, transfer to another job, medical treatment beyond first aid, loss of consciousness, or significant injury diagnosed by a physician. DART rate is the OSHA-standard incidence measure — calculate it as (cases with days away + restricted/transferred) × 200,000 / hours worked. The 200,000 hours normalizes to 100 full-time-equivalent workers over a year. National average DART across all industries is around 1.7; high-risk industries (skilled nursing, warehousing, courier) routinely exceed 5.

Source: OSHA ITA 300A Summary Data, calendar year 2024 filings (downloaded 2026-05-22).

OSHA Lookup · workplace-injury data from OSHA ITA 300A 2024 · About / methodology