Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,189,992Inspections Most recent open 2026-07-18 Last loaded 2026-07-22

OSHA Inspection: UNNERSTALL CONTRACTING COMPANY LLC

Planned inspection · Safety discipline

On , OSHA opened a planned safety inspection of UNNERSTALL CONTRACTING COMPANY LLC in SCHOETTLER ROAD, CHESTERFIELD, MO 63017 (NAICS 237110). OSHA activity number 344535968.

What this inspection record means

OSHA opens inspections for many reasons — routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
SCHOETTLER ROAD
City
CHESTERFIELD
State
MO
ZIP
63017
Mailing
2803 WEST OSAGE STREET, PACIFIC, MO 63069
Inspection type
Planned (H)
Scope
Complete (A)
Discipline
Safety
Advance notice
No
Union status
A
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
237110
Employees
25
Ownership type
A

7 citations on file for this inspection.

1926.21 B02

Serious Gravity 5 1 instance 25 exposed
Issued
Jun 24, 2020
Penalty
Initial $5,089 · Current $13,300
29 CFR 1926.21(b)(2):  The employer did not instruct each employee in the recognition and avoidance of unsafe condition(s) and the regulation(s) applicable to his work environment to control or eliminate any hazard(s) or other exposure to illness or injury:  The employer is failing to ensure employees are adequately trained to recognize and avoid engulfment hazards associated with working in an excavation.  The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017.  Employees were not trained by the employer to be able to recognize and avoid hazards associated with working in excavations that are outlined in 29 CFR 1926 Subpart P.
Recent events (3)
  • — J (S) $13300
  • — C (S) $5089
  • — Z (S) $5089

1926.100 A

Serious Gravity 5 1 instance 3 exposed
Issued
Jun 24, 2020
Abate by
Sep 12, 2022
Penalty
Initial $5,089 · Current $13,300
29 CFR 1926.100(a):  Employees working in areas where there is a possible danger of head injury from impact, or from falling or flying objects, or from electrical shock and burns, shall be protected by protective helmet.  The employer is failing to protect employees from struck-by hazards associated with working in trenches and excavations.  The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017.  An employee was working inside a trench measuring approximately 20.5 feet deep X 45 feet long X 8 feet wide without a protective helmet.  The employee was exposed to loose spoils and clumps of compacted soil that could fall from the edge of the excavation.
Recent events (3)
  • — J (S) $13300
  • — C (S) $5089
  • — Z (S) $5089

1926.651 C02

Serious Gravity 10 1 instance 3 exposed
Issued
Jun 24, 2020
Abate by
Sep 12, 2022
Penalty
Initial $5,937 · Current $13,300
29 CFR 1926.651(c)(2):  A stairway, ladder, ramp or other safe means of egress was not located in trench excavations that were 4 feet (1.22m) or more in depth so as to require no more than 25 feet (7.62m) of lateral travel for employees:   The employer is failing to protect employees from engulfment and struck-by hazards associated with working in a trench without adequate access and egress.  The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017, employees were replacing a 15 inch clay pipe in an excavation measuring approximately 20.5 feet deep X 45 feet long X 8 feet wide without a ladder, ramp or other safe means of egress.
Recent events (3)
  • — J (S) $13300
  • — C (S) $5937
  • — Z (S) $5937

1926.651 J02

Serious Gravity 10 1 instance 4 exposed
Issued
Jun 24, 2020
Abate by
Sep 12, 2022
Penalty
Initial $5,937 · Current $26,596
29 CFR 1926.651(j)(2):  Protection was not provided by placing and keeping such materials or equipment at least 2 feet (.61m) from the edge of excavations, or by the use of retaining devices that were sufficient to prevent materials or equipment from falling or rolling into excavations, or by a combination of both if necessary:  The employer is failing to protect employees from struck-by hazards associated with trenching and excavations.  The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017.  Employees were exposed to struck-by hazards while working below excavated rock, dirt and soil piles located within 2 feet of the excavation edge.
Recent events (3)
  • — J (S) $26596
  • — C (S) $5937
  • — Z (S) $5937

5(a)(1)

Serious Gravity 10 1 instance 2 exposed
Issued
Jun 24, 2020
Abate by
Sep 12, 2022
Penalty
Initial $67,469 · Current $14,502 Reduced
Section 5(a)(1) of the Occupational Safety and Health Act of 1970: The employer did not furnish employment and a place of employment which were free from recognized hazards that were causing or likely to cause death or serious physical harm to employees:   The employer is failing to protect employees from fall and struck-by hazards associated with employees riding in the bucket of an excavator on a construction jobsite.  The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017 where the employer was lifting and transporting employees in the bucket of a John Deere 350G LC excavator as a means of access and egress for a 20.5 foot deep excavation.
Recent events (3)
  • — J (S) $14502
  • — C (W) $67469
  • — Z (W) $67469

1926.651 H01

Deleted Willful Gravity 10 1 instance 3 exposed
Issued
Jun 24, 2020
Abate by
Jul 21, 2020
Penalty
Initial $67,469 · Current $0 Reduced
29 CFR 1926.651(h)(1):  Employees worked in excavations in which there was accumulated water, or excavations in which water had accumulated, and adequate precautions were not taken to protect employees against the hazards posed by water accumulation:   The employer is failing to protect employees from caught in/between hazards associated with a trench collapse. The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017.  Employees were installing a 24 inch Sewer pipe in a trench/excavation approximately 20.5 feet deep x 45 feet long x 8 feet wide.  The employer allowed employees to enter the trench where the excavation had accumulated water exposing employees to caught in/between hazards associated with a trench collapse.  Adequate measures or dewatering systems were not implemented by the employer.  An employee was injured in this trench due to a trench collapse on December 31, 2019, and later that same day, the employer allowed another employee to enter the same trench without taking adequate precautions to protect the employee from hazards posed by water accumulation.
Recent events (3)
  • — J (W) $0
  • — C (W) $67469
  • — Z (W) $67469

1926.652 A01

Serious Gravity 10 1 instance 2 exposed
Issued
Jun 24, 2020
Abate by
Jul 28, 2022
Penalty
Initial $67,469 · Current $14,502 Reduced
29 CFR 1926.652(a)(1):  Each employee in an excavation shall be protected from cave-ins by an adequate protective system designed in accordance with paragraph (b) or (c) of this section:  The employer is failing to protect employees from struck-by and engulfment hazards associated with trenching and excavations. The most recent example of this was on December 31, 2019 at or near 1505 Schoettler Road, Chesterfield, Missouri 63017.  Employees were performing work on a sanitary sewer within an trench measuring approximately 20.5 feet deep X 45 feet long X 8 feet wide.  The protective system used by the employer was not adequately installed and exceeded the manufacturer's requirements.   An employee was injured in this trench due to a trench collapse on December 31, 2019, and later that same day, the employer allowed another employee to enter the same trench without taking appropriate measures to ensure safety.
Recent events (3)
  • — J (S) $14502
  • — C (W) $67469
  • — Z (W) $67469

View Unnerstall Contracting Company LLC's full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 344535968.

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