Establishment profile
UNNERSTALL CONTRACTING COMPANY LLC
11660 ADMINISTRATION DRIVE, SAINT LOUIS, MO, 63146
237110 — Water and Sewer Line and Related Structures Construction
Summary
UNNERSTALL CONTRACTING COMPANY LLC has accumulated 11 OSHA violations across 2 inspections over 14 years of recorded history, with $46,200 in total assessed penalties.
The establishment sits in the 99th percentile for violations within its industry-state peer group of 409 employers. Inspection frequency runs at the 87th percentile. The most recent enforcement activity was recorded 6 years ago.
Federal records were found in 2 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
UNNERSTALL CONTRACTING COMPANY LLC appears in OSHA workplace safety and MSHA mine safety records only. No matching records were found in WHD wage enforcement, EPA environmental compliance, NLRB labor relations, OFLC visa and labor certification (historical), FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls.
OSHA workplace safety
50% of inspections at this establishment produced violations,
Most-cited OSHA standards
Top OSHA standards cited at this employer, ranked by citation count. Standards (CFR sections) cluster citations into safety themes -- machine guarding, lockout-tagout, hazard communication, fall protection, process safety, etc. A concentration on one or two sections reveals a pattern that individual citations don’t. 11 distinct standards shown · 11 citations in this view · $46,200 in penalties.
| CFR section | Citations | Inspections | Total penalty | First cited | Last cited |
|---|---|---|---|---|---|
| 5A0001 | 1 | 1 | $7,000 | Mar 2012 | Mar 2012 |
| 29 CFR 1910.0134 D01 III | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0021 B06 I | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0416 A01 | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1910.0134 A02 | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0651 B04 | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0651 J02 | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0652 C | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0652 A01 | 1 | 1 | $4,900 | Mar 2012 | Mar 2012 |
| 29 CFR 1926.0600 A06 | 1 | 1 | — | Mar 2012 | Mar 2012 |
| 29 CFR 1904.0032 B01 | 1 | 1 | — | Mar 2012 | Mar 2012 |
Source: OSHA inspection citations (violation_detail). CFR section codes can be looked up at osha.gov/laws-regs for the formal standard text. Per-inspection detail and the specific violation descriptions are available by expanding individual inspections below.
Peer comparison
Worse on violations than nearly every other employer in NAICS 2371 within MO. Peer group: 409 employers. This establishment has 11 OSHA violations; peer median is 1.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with OSHA Injury Tracking Application →
Industry benchmark
BLS rates reflect industry-wide averages. Self-reported figures come from OSHA’s Injury Tracking Application; absence of self-reported data does not necessarily indicate non-compliance — many establishments fall below the ITA reporting threshold.
Inspection breakdown
Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.
OSHA severe injury reports
No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with Occupational Safety and Health Administration →
OSHA accident events
Accidents, fatalities, and catastrophes documented during OSHA inspections at this employer. Each entry links to the inspection that recorded it.
| Date | Event | Injuries | Hospitalized | Fatalities | |
|---|---|---|---|---|---|
| Oct 10, 2011 | OXYGEN DEFICIENCY,SEWER,UNCONSCIOUSNESS,ASPHYXIATED,VAPOR,CONFINED SPACE,GAS,CARBON DIOXIDE,TOXIC FUMES,RESPIRATORFatality | 1 | — | 1 |
Source: OSHA accident investigations. Narratives are recorded by the inspecting officer and may be truncated.
Activity timeline
No federal enforcement activity has been recorded against this establishment in 6+ years. Most recent activity: 6 years ago. Data on this page is refreshed weekly.
Wage & Hour Division (WHD)
No WHD wage, overtime, or child-labor enforcement cases on file for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
Company-level in MO — for UNNERSTALL CONTRACTING COMPANY LLC, not this location alone
Mine Safety & Health Administration — citations issued at mining operations. MSHA records cases at the company/regional level (no worksite address), so these are matched by company name and state and may span other UNNERSTALL CONTRACTING COMPANY LLC operations in the same state.
MSHA citations
Mine Safety and Health Administration citations. S&S (significant and substantial) marks violations that could reasonably contribute to a serious injury. Negligence rating is MSHA’s operator-culpability assessment (none, low, moderate, high, or reckless disregard). Proposed = assessed at issuance; Paid = post-settlement / appeal. 1 citation · 1 contractor · $139 proposed / $139 paid.
| Citation | Mine | Date | Section | S&S | Negligence | Proposed | Paid |
|---|---|---|---|---|---|---|---|
| 9269989 | Barnhart Quarry Jefferson, MO contractor: Unnerstall Contracting Co Ltd | Nov 2021 | — | No | ModNegligence | $139 | $139 |
Source: MSHA citation database. “Contractor” annotations indicate the cited party was on-site at the mine but not the mine’s operator -- responsibility attaches to the contractor LLC, not the mine’s owner. Section codes reference 30 CFR (the Mine Safety and Health regulations).
Labor relations (NLRB)
No NLRB unfair labor practice charges or union representation cases on file for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with National Labor Relations Board →
Visa & labor certification (OFLC) — historical
No H-1B, H-2A, or H-2B labor condition applications on file (historical data only — DOL ended OFLC publication) for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for UNNERSTALL CONTRACTING COMPANY LLC. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2020-02-07 | Referral | 0 | — | $0 | |
| 2011-10-10 | Accident | 11 | 10 | $46,200 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Other employers in this industry and state
Other employers in water and sewer line and related structures construction within MO, ordered by federal enforcement volume:
- XL CONTRACTING, INC.KIRKWOOD — 2 federal enforcement records
- EMERY SAPP & SONS, INC.COLUMBIA — 2 federal enforcement records
- XL CONTRACTING, INC.PINE LAWN — 2 federal enforcement records
- MISSOURI-AMERICAN WATER COMPANYJOPLIN — 2 federal enforcement records
- SAK CONSTRUCTION, LLCSAINT LOUIS — 2 federal enforcement records
- HOOVER AND ASSOCIATESINDEPENDENCE — 2 federal enforcement records
- FOLEY COMPANYKANSAS CITY — 2 federal enforcement records
- R & K EXCAVATION INC.BOSS — 2 federal enforcement records
- PYRAMID EXCAVATION & CONSTRUCTION, INC.KANSAS CITY — 2 federal enforcement records
- LEHMAN CONSTRUCTION, LLC.OAK GROVE — 2 federal enforcement records
Related searches
- Water and Sewer Line and Related Structures ConstructionAll employers in this industry
- Employers in MOState-wide enforcement data
- Water and Sewer in MOIndustry × state cross-filter
About this data
This profile aggregates federal enforcement records on UNNERSTALL CONTRACTING COMPANY LLC from every major federal compliance and enforcement source plus the UVA Corporate Prosecution Registry. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.
Establishments are matched across agencies using normalized employer name, state, and ZIP code.
OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.
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Contact sales →Frequently asked
- What is UNNERSTALL CONTRACTING COMPANY LLC's OSHA violation history?
- UNNERSTALL CONTRACTING COMPANY LLC has 2 OSHA inspections on record with 11 violations and $46,200 in total penalties.
- How does UNNERSTALL CONTRACTING COMPANY LLC's safety record compare to its industry?
- UNNERSTALL CONTRACTING COMPANY LLC operates in the water and sewer line and related structures construction industry. The industry average Total Recordable Incident Rate (TRIR) is 1.9.
- Has UNNERSTALL CONTRACTING COMPANY LLC had any workplace fatalities?
- Yes. Federal records show 1 fatality investigation involving UNNERSTALL CONTRACTING COMPANY LLC.