TIERDAEL CONSTRUCTION COMPANY, INC.
120TH & WASHINGTON, WESTMINSTER, CO 80018
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Sep 5, 2001#303624514Sep 5, 2001Planned (H) · Partial scope, Safety#303624514$3,0001 viol.1 violation$3,000 in penalties
Inspection #303624514
Dates
- Opened
- Sep 5, 2001
- Closing Conference Date
- Sep 5, 2001
- Contested
- Oct 5, 2001
- Final Order
- Oct 28, 2002
- Closed
- Nov 5, 2002
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 120
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $4,000
- Penalties on Record
- $3,000
- Site Address
- 120th & Washington, Westminster, CO 80018
- Industry
- Not classified in OSHA's inspection record.
Planned Inspection: This inspection record is categorized as a planned inspection in the DOL OSHA enforcement data. Planned inspections are part of OSHA's scheduled enforcement activity rather than being opened directly from a complaint or reported incident at that worksite.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.651 Excavations - Specific Excavation Requirements OSHA citation code: 19260651 F | Other | 1 | 5 | $4,000 | $3,000 | Aug 29, 2002 | Oct 5, 2001 | Oct 28, 2002 |
Oct 30, 2000#303619266Oct 30, 2000Complaint (B) · Partial scope, Health#303619266$1,8008 viol.8 violations$1,800 in penalties
Inspection #303619266
Dates
- Opened
- Oct 30, 2000
- Closing Conference Date
- Oct 30, 2000
- Contested
- Jan 17, 2001
- Final Order
- Mar 29, 2002
- Closed
- Apr 1, 2004
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 120
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 8
- Violation Types
- 4 other-than-serious, 4 unclassified
- Initial Penalties
- $20,000
- Penalties on Record
- $1,800
- Site Address
- 120th & Washington, Westminster, CO 80018
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (8 of 8 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01002 | 1926.1101 Asbestos OSHA citation code: 19261101 E01 | Other | 1 | 2 | $4,000 | $400 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01003 | 1926.1101 Asbestos OSHA citation code: 19261101 F01 I | Unclassified | 1 | 2 | $4,000 | $0 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01004A | 1926.1101 Asbestos OSHA citation code: 19261101 G01 | Other | 3 | 2 | $4,000 | $1,000 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01004B | 1926.1101 Asbestos OSHA citation code: 19261101 G07 I | Other | 1 | 2 | $0 | $0 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01005 | 1926.1101 Asbestos OSHA citation code: 19261101 H01 | Unclassified | 2 | 2 | $4,000 | $0 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01006A | 1926.1101 Asbestos OSHA citation code: 19261101 I01 | Unclassified | 1 | 2 | $2,000 | $0 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01006B | 1926.1101 Asbestos OSHA citation code: 19261101 I01 | Unclassified | 1 | 2 | $0 | $0 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
| 01007 | 1926.1101 Asbestos OSHA citation code: 19261101 K08 I | Other | 1 | 2 | $2,000 | $400 | Jan 22, 2001 | Jan 17, 2001 | Mar 29, 2002 |
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
2 inspections, 2000 to 2001. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.