KOPPERS QUALITY WATERPROOFING CO INC is a all other specialty trade contractors employer in BLADENSBURG, MD. Federal records show 1 OSHA inspection with 0 violations and $0 in penalties. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 2, 2026.
KOPPERS QUALITY WATERPROOFING CO INC
4109 55TH AVE, BLADENSBURG, MD, 20710
Parent: Koppers Holdings Inc. (37 locations)
238990 — Top companies in All Other Specialty Trade Contractors
Industry Benchmark
Data Insights
Inspection Breakdown
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Part of a larger organization
KOPPERS QUALITY WATERPROOFING CO INC is one of 37 establishments in our dataset that roll up under the parent organization Koppers Holdings Inc.. Koppers Holdings Inc. is a SEC public reporter (KOP), with most recent reported revenue of $1.9B.
Federal enforcement records on KOPPERS QUALITY WATERPROOFING CO INC represent activity at this specific establishment. The full enforcement footprint of Koppers Holdings Inc. across all 37 of its tracked locations is viewable on the parent profile.
Other establishments operated by Koppers Holdings Inc.
- KOPPERS, INC. — CICERO, IL — 3 federal records
- KOPPERS, INC. — NORTH LITTLE ROCK, AR — 3 federal records
- 67949 - KOPPERS INC — TINY TOWN, KY — 3 federal records
- Koppers Inc. — Pittsburgh, PA — 2 federal records
- KOPPERS INDUSTRIES, INC. — CICERO, IL — 2 federal records
- KOPPERS INC. — GREEN SPRING, WV — 2 federal records
- KOPPERS, INC. — DENVER, CO — 2 federal records
- KOPPERS INC. — SOMERVILLE, TX — 2 federal records
- KOPPERS INC — SALEM, VA — 1 federal record
- KOPPERS INDUSTRIES INC. — CLAIRTON, PA — 1 federal record
Other employers in All Other Specialty Trade Contractors within MD
- POTOMAC ABATEMENT INC — JESSUP — 3 federal records
- WILLIAMS CRANE SERVICE, INC. — TIMONIUM — 2 federal records
- WOLF FIRE PROTECTION INC — GLEN BURNIE — 2 federal records
- WINKLER'S, INC. — BALTIMORE — 2 federal records
- WINKLER'S INC. — BALTIMORE — 2 federal records
- WILLIAMS CRANE SERVICE INC — OWINGS MILLS — 2 federal records
- CLARK MACHINE CORPORATION — LINTHICUM HEIGHTS — 2 federal records
- DIGGING & RIGGING, INC. — ELLICOTT CITY — 2 federal records
- DIGGING & RIGGING, INC. — HAGERSTOWN — 2 federal records
- CLARK CONCRETE LLC — ROCKVILLE — 2 federal records
Industry context
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 1.6 for the all other specialty trade contractors sector, with a Days Away, Restricted, or Transferred (DART) rate of 0.9.
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 18 years.
Frequently Asked Questions
- What is KOPPERS QUALITY WATERPROOFING CO INC's OSHA violation history?
- KOPPERS QUALITY WATERPROOFING CO INC has 1 OSHA inspection on record with 0 violations and $0 in total penalties.
- How does KOPPERS QUALITY WATERPROOFING CO INC's safety record compare to its industry?
- KOPPERS QUALITY WATERPROOFING CO INC operates in the all other specialty trade contractors industry. The industry average Total Recordable Incident Rate (TRIR) is 1.6.
About this data
This profile aggregates federal enforcement records on KOPPERS QUALITY WATERPROOFING CO INC of BLADENSBURG, MD from 17 federal data sources. Records were found in 3 sources: OSHA workplace safety inspections, SEC XBRL companyfacts (parent financials), and BLS industry safety benchmarks. The remaining 14 sources were checked and found no matching records: WHD, MSHA, EPA, NLRB, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, SEC enforcement.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 2, 2026. KOPPERS QUALITY WATERPROOFING CO INC resolves to the parent rollup Koppers Holdings Inc., which operates 37 establishments in our dataset.
This profile may be incomplete if KOPPERS QUALITY WATERPROOFING CO INCoperates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.