SUN STEEL TREATING
550 N. MILL STREET, SOUTH LYON, MI 48178
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
May 6, 2022#345944144May 6, 2022Programmed Related (I) · Partial scope, Health#345944144$6,0003 viol.3 violations$6,000 in penalties
Inspection #345944144
Dates
- Opened
- May 6, 2022
- Closing Conference Date
- May 26, 2022
- Final Order
- Jul 13, 2022
- Closed
- Jul 20, 2022
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 50
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 3 repeat
- Initial Penalties
- $12,000
- Penalties on Record
- $6,000
- Site Address
- 550 N Mill St, South Lyon, MI 48178
- Industry
- 332811 Metal Heat Treating
Programmed Related Inspection: This inspection record is categorized as a programmed related inspection in the DOL OSHA enforcement data. The public DOL category label is preserved here without adding extra interpretation beyond the government label.
Violations
Violation list (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1910.146 Permit-Required Confined Spaces OSHA citation code: 19100146 C01 | Repeat | 1 | 14 | $6,000 | $3,000 | Jul 18, 2022 | - | Jul 13, 2022 |
| 01001B | 1910.146 Permit-Required Confined Spaces OSHA citation code: 19100146 C02 | Repeat | 1 | 50 | $0 | $0 | Jul 18, 2022 | - | Jul 13, 2022 |
| 01002 | 1910.146 Permit-Required Confined Spaces OSHA citation code: 19100146 C04 | Repeat | 1 | 20 | $6,000 | $3,000 | Jul 18, 2022 | - | Jul 13, 2022 |
Jan 12, 2022#345721252Jan 12, 2022Planned (H) · Complete scope, Safety#345721252$01 viol.1 violation$0 in penalties
Inspection #345721252
Dates
- Opened
- Jan 12, 2022
- Closing Conference Date
- Jan 27, 2022
- Final Order
- Apr 11, 2022
- Closed
- Jul 28, 2022
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 51
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 550 N Mill St, South Lyon, MI 48178
- Industry
- 332811 Metal Heat Treating
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 | 1910.147 Control of Hazardous Energy (Lockout/Tagout) OSHA citation code: 19100147 C06 I | Other | 1 | 3 | $0 | $0 | Apr 18, 2022 | - | Apr 11, 2022 |
Mar 31, 2017#342214566Mar 31, 2017Planned (H) · Complete scope, Safety#342214566$11,00028 viol.28 violations$11,000 in penalties
Inspection #342214566
Dates
- Opened
- Mar 31, 2017
- Closing Conference Date
- Apr 4, 2017
- Final Order
- May 8, 2017
- Closed
- May 31, 2017
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 74
Violations and Penalties
- Total Violations
- 28
- Violation Types
- 18 serious, 10 other-than-serious
- Initial Penalties
- $22,000
- Penalties on Record
- $11,000
- Site Address
- 550 N Mill St, South Lyon, MI 48178
- Industry
- 332811 Metal Heat Treating
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 (7 of 28 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 408.10034(3) | Serious | 1 | 4 | $1,600 | $800 | May 16, 2017 | - | May 8, 2017 |
| 01002 | 408.10034(8) | Serious | 1 | 8 | $1,600 | $800 | May 16, 2017 | - | May 8, 2017 |
| 01003 | 408.10034(10) | Serious | 1 | 2 | $2,000 | $1,000 | May 16, 2017 | - | May 8, 2017 |
| 01004 | 408.10123 | Serious | 1 | 2 | $1,600 | $800 | May 16, 2017 | - | May 8, 2017 |
| 01005 | 408.10213(2) | Serious | 5 | 4 | $2,000 | $1,000 | May 16, 2017 | - | May 8, 2017 |
| 01006 | 408.10731(1) | Serious | 1 | 1 | $2,000 | $1,000 | May 16, 2017 | - | May 8, 2017 |
| 01007 | 408.11115(4) | Serious | 1 | 8 | $1,600 | $800 | May 16, 2017 | - | May 8, 2017 |
Showing the 7 violations listed first by citation identifier. This inspection has 28 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Jan 7, 2011#311998694Jan 7, 2011Planned (H) · Complete scope, Safety#311998694$00 viol.0 violations$0 in penalties
Inspection #311998694
Dates
- Opened
- Jan 7, 2011
- Closing Conference Date
- Jan 7, 2011
- Closed
- Feb 9, 2011
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 52
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 550 Mill St Box U, South Lyon, MI 48178
- Industry
- 332811 Metal Heat Treating
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.
May 16, 2006#308863133May 16, 2006Planned (H) · Complete scope, Safety#308863133$5259 viol.9 violations$525 in penalties
Inspection #308863133
Dates
- Opened
- May 16, 2006
- Closing Conference Date
- May 17, 2006
- Closed
- Jul 14, 2006
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 55
Violations and Penalties
- Total Violations
- 9
- Violation Types
- 1 serious, 8 other-than-serious
- Initial Penalties
- $525
- Penalties on Record
- $525
- Site Address
- 550 Mill Street, South Lyon, MI 48178
- Industry
- 332811 Metal Heat Treating
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 (7 of 9 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.303 Electrical - General Requirements OSHA citation code: 19100303 G02 I | Serious | 1 | 3 | $525 | $525 | Jun 30, 2006 | - | - |
| 02001 | 4081.125 | Other | 1 | 3 | $0 | $0 | Jun 30, 2006 | - | - |
| 02002 | 4081072701 | Other | 1 | 3 | $0 | $0 | Aug 2, 2006 | - | - |
| 02003 | 4081083503 | Other | 1 | 3 | $0 | $0 | Jun 30, 2006 | - | - |
| 02004 | 4081111504 | Other | 1 | 3 | $0 | $0 | Aug 2, 2006 | - | - |
| 02005 | 4081215401 | Other | 2 | 2 | $0 | $0 | Jun 30, 2006 | - | - |
| 02006 | 4081330802 | Other | 1 | 10 | $0 | $0 | Jun 30, 2006 | - | - |
Showing the 7 violations listed first by citation identifier. This inspection has 9 total violations documented in the U.S. Department of Labor OSHA enforcement database. The complete violation list is available at enforcedata.dol.gov.
Mar 3, 1995#124957655Mar 3, 1995Planned (H) · Complete scope, Safety#124957655$1,2005 viol.5 violations$1,200 in penalties
Inspection #124957655
Dates
- Opened
- Mar 3, 1995
- Closing Conference Date
- Mar 3, 1995
- Closed
- May 2, 1995
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 50
Violations and Penalties
- Total Violations
- 5
- Violation Types
- 2 serious, 3 other-than-serious
- Initial Penalties
- $1,200
- Penalties on Record
- $1,200
- Site Address
- 550 Mill Street, South Lyon, MI 48178
- 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 (5 of 5 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 4081072701 | Serious | 2 | 2 | $600 | $600 | Apr 24, 1995 | - | - |
| 01002 | 4081073101 | Serious | 1 | 1 | $600 | $600 | Apr 24, 1995 | - | - |
| 02001 | 4081.125 | Other | 1 | 1 | $0 | $0 | Mar 31, 1995 | - | - |
| 02002 | 4081017401 | Other | 1 | 1 | $0 | $0 | Mar 31, 1995 | - | - |
| 02003 | 4081021302 | Other | 1 | 2 | $0 | $0 | Apr 24, 1995 | - | - |
Mar 9, 1989#108035411Mar 9, 1989Complaint (B) · Partial scope, Health#108035411$02 viol.2 violations$0 in penalties
Inspection #108035411
Dates
- Opened
- Mar 9, 1989
- Closing Conference Date
- Mar 9, 1989
- Closed
- Aug 2, 1989
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 47
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 550 N. Mill Street, South Lyon, MI 48178
- 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 (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | R322009 OSHA citation code: R322009 D | Other | 1 | 1 | $0 | $0 | Jul 24, 1989 | - | - |
| 01002 | R350201 OSHA citation code: R350201 B | Other | 1 | 1 | $0 | $0 | Jun 22, 1989 | - | - |
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.
7 inspections, 1989 to 2022. 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.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.
Standards cited
Industry comparison
BLS 2024 survey: metal heat treating reported 3.3 injuries and illnesses per 100 full-time workers (total recordable cases, national, private industry; relative standard error 14.1%). This is an industry-wide average from a federal survey, not a measurement of this establishment. Source