Seriousgravity 5
Citation #0100129 CFR 1926.21(b)(2)View full regulation text on OSHA.govInitial$5,089
→
Current$13,300
OSHA Inspection
Unnerstall Contracting Company Llc — OSHA Inspection #344535968
CHESTERFIELD, Missouri · Water & Sewer Line Construction (NAICS 237110) · 25 workers on site
Inspection outcome
Opened: December 31, 2019 · Closed: November 4, 2022
○
Citations issued
OSHA issued one or more Other-than-serious citations.
Safety inspection · Planned (Programmed) · Comprehensive — entire establishment
Violations7
Serious+0
Initial penalty$224,459
Current penalty$95,500
Accidents0
Duration1039d
Summary
What happened in this inspection
On December 31, 2019, OSHA opened Unnerstall Contracting Company Llc’s inspection #344535968 at CHESTERFIELD, Missouri — an establishment in the water & sewer line construction industry. The case was administratively closed on November 4, 2022, 1039 days after opening.
OSHA cited the employer for 7 violations totaling $95,500 in current penalties — reduced from an initial proposed total of $224,459. All citations were Other-than-serious.
Breakdown by classification
7violations total
Willful114%
A Willful violation is one OSHA determined the employer committed with intentional disregard for, or plain indifference to, the OSH Act. It carries the highest civil penalty — up to ~$165,000 per violation. Willful violations are rare and signal the most serious workplace safety failures.
Serious686%
A Serious violation is one where there is substantial probability that death or serious physical harm could result, and the employer knew (or should have known) of the hazard. Maximum penalty is ~$16,550 per violation. The majority of OSHA citations fall into this category.
Citations
Citations issued in this inspection
Seriousgravity 5
Citation #0100229 CFR 1926.100(a)View full regulation text on OSHA.govInitial$5,089
→
Current$13,300
Seriousgravity 10
Citation #0100329 CFR 1926.651(c)(2)View full regulation text on OSHA.govInitial$5,937
→
Current$13,300
Seriousgravity 10
Citation #0100429 CFR 1926.651(j)(2)View full regulation text on OSHA.govInitial$5,937
→
Current$26,596
Seriousgravity 10
Citation #020015A0001General Duty Clause or unstructured citationInitial$67,469
→
Current$14,502reduced by $52,967
Willfulgravity 10
Citation #0200229 CFR 1926.651(h)(1)View full regulation text on OSHA.govInitial$67,469
→
Current$0reduced by $67,469
Seriousgravity 10
Citation #0200329 CFR 1926.652(a)(1)View full regulation text on OSHA.govInitial$67,469
→
Current$14,502reduced by $52,967
Standard codes link to the regulation text on OSHA.gov. The text describes the rule itself; the specific findings of this inspection appear above. To see OSHA’s official record of this inspection, search activity number 344535968 at OSHA Establishment Search.
Same employer
Other OSHA inspections at Unnerstall Contracting Company Llc
Earlier or related cases at this establishment.
Reference
About OSHA inspections
The U.S. Occupational Safety and Health Administration (OSHA) conducts inspections under several triggers: programmed targeting of high-hazard industries, employee complaints, workplace accidents, fatalities, and follow-ups to prior citations.
Citations
Each citation specifies a section of 29 CFR, a severity tier, and a proposed penalty. Employers can contest citations through OSHA’s informal conference or before the OSH Review Commission.
Open vs closed
An open case has not yet been administratively closed — citations may follow or the case may close without action.
Current vs initial penalty
Initial penalty is the proposed amount at citation. Current penalty is the post-conference / settlement figure on file today.
Trigger types
A = Accident, B = Complaint, H = Programmed, F = Follow-up. See the glossary for all codes.
About this inspection
OSHA classified this as Planned (Programmed) — a programmed (planned) inspection, typically targeting high-hazard industries.
Sources
Cross-check with OSHA directly
This page draws from the OSHA Integrated Management Information System (IMIS) via the DOL Open Data Portal. For the authoritative record, look up activity number 344535968 directly:
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