M. NELSON BARNES & SONS, INC.
201 UNIVERSITY PKWY E, BALTIMORE, MD 21218
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Nov 18, 2005#309522894Nov 18, 2005Planned (H) · Complete scope, Safety#309522894$01 viol.1 violation$0 in penalties
Inspection #309522894
Dates
- Opened
- Nov 18, 2005
- Closing Conference Date
- Nov 21, 2005
- Closed
- Mar 1, 2006
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 12
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 109 Melrose Avenue, Baltimore, MD 21210
- Industry
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
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 | 50406 OSHA citation code: 50406 A01 | Other | 1 | 12 | $0 | $0 | Jan 2, 2006 | - | - |
Oct 29, 1992#104418736Oct 29, 1992Planned (H) · Complete scope, Safety#104418736$01 viol.1 violation$0 in penalties
Inspection #104418736
Dates
- Opened
- Oct 29, 1992
- Closing Conference Date
- Oct 30, 1992
- Closed
- Apr 1, 1993
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 11
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 2024 E. Monument Street, Baltimore, MD 21205
- 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 | 1926.150 Fire Protection (Construction) OSHA citation code: 19260150 A04 | Other | 1 | 1 | $0 | $0 | Feb 25, 1993 | - | - |
Apr 5, 1991#104471024Apr 5, 1991Planned (H) · Complete scope, Safety#104471024$03 viol.3 violations$0 in penalties
Inspection #104471024
Dates
- Opened
- Apr 5, 1991
- Closing Conference Date
- Apr 5, 1991
- Closed
- May 23, 1991
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 23
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 3 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 4701 N. Charles Street, Baltimore, MD 21210
- 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 (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.404 Electrical - Wiring Design and Protection (Construction) OSHA citation code: 19260404 A 2 | Other | 1 | 1 | $0 | $0 | May 3, 1991 | - | - |
| 01002 | 1926.404 Electrical - Wiring Design and Protection (Construction) OSHA citation code: 19260404 B 1 II | Other | 1 | 1 | $0 | $0 | May 3, 1991 | - | - |
| 01003 | 1926.404 Electrical - Wiring Design and Protection (Construction) OSHA citation code: 19260404 F 6 | Other | 2 | 2 | $0 | $0 | May 3, 1991 | - | - |
Aug 20, 1990#104474127Aug 20, 1990Planned (H) · Complete scope, Safety#104474127$00 viol.0 violations$0 in penalties
Inspection #104474127
Dates
- Opened
- Aug 20, 1990
- Closing Conference Date
- Aug 20, 1990
- Closed
- Aug 28, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 35
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 4940 Eastern Avenue, Baltimore, MD 21224
- 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.
Apr 28, 1989#104368949Apr 28, 1989Accident (A) · Partial scope, Safety#104368949$302 viol.2 violations$30 in penalties
Inspection #104368949
Dates
- Opened
- Apr 28, 1989
- Closing Conference Date
- May 8, 1989
- Closed
- Jul 15, 1989
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 6
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 serious, 1 other-than-serious
- Initial Penalties
- $660
- Penalties on Record
- $30
- Site Address
- 9000 Franklin Sq. Dr., Baltimore, MD 21237
- Industry
- Not classified in OSHA's inspection record.
Accident Inspection: This inspection record is categorized as an accident inspection in the U.S. Department of Labor OSHA enforcement data. Employers must report work-related fatalities within 8 hours, and work-related inpatient hospitalizations, amputations, or losses of an eye within 24 hours. An accident-related inspection does not by itself determine fault.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.652 Excavations - Protection of Employees OSHA citation code: 19260652 B | Serious | 1 | 3 | $660 | $30 | Jun 15, 1989 | - | - |
| 02001 | 1926.21 Safety Training and Education OSHA citation code: 19260021 B 2 | Other | 1 | 3 | $0 | $0 | Jun 15, 1989 | - | - |
Oct 4, 1988#104381645Oct 4, 1988Planned (H) · Complete scope, Safety#104381645$5202 viol.2 violations$520 in penalties
Inspection #104381645
Dates
- Opened
- Oct 4, 1988
- Closing Conference Date
- Oct 4, 1988
- Closed
- Dec 22, 1988
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 5
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 repeat, 1 other-than-serious
- Initial Penalties
- $520
- Penalties on Record
- $520
- Site Address
- 4701 N. Charles Street, Baltimore, MD 21210
- 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 (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.500 Fall Protection - Scope, Application, and Definitions OSHA citation code: 19260500 E 1 IV | Repeat | 1 | 5 | $520 | $520 | Dec 3, 1988 | - | - |
| 02001 | 1926.152 Flammable Liquids OSHA citation code: 19260152 A 1 | Other | 1 | 5 | $0 | $0 | Dec 3, 1988 | - | - |
Sep 15, 1987#18825653Sep 15, 1987Planned (H) · Complete scope, Safety#18825653$01 viol.1 violation$0 in penalties
Inspection #18825653
Dates
- Opened
- Sep 15, 1987
- Closing Conference Date
- Sep 15, 1987
- Closed
- Nov 2, 1987
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 5
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 3400 N. Charles Street, Baltimore, MD 21218
- 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 | 1926.404 Electrical - Wiring Design and Protection (Construction) OSHA citation code: 19260404 F 6 | Other | 1 | 2 | $0 | $0 | Oct 10, 1987 | - | - |
May 27, 1986#18814285May 27, 1986Planned (H) · Complete scope, Safety#18814285$02 viol.2 violations$0 in penalties
Inspection #18814285
Dates
- Opened
- May 27, 1986
- Closing Conference Date
- May 28, 1986
- Closed
- Aug 14, 1986
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 16
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 3400 N. Charles Street, Baltimore, MD 21030
- 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 (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.350 Gas Welding and Cutting OSHA citation code: 19260350 H | Other | 1 | 9 | $0 | $0 | Jul 26, 1986 | - | - |
| 01002 | 1926.450 Scaffolding - Scope, Application, and Definitions OSHA citation code: 19260450 A 2 | Other | 1 | 16 | $0 | $0 | Jul 26, 1986 | - | - |
Mar 3, 1986#2811602Mar 3, 1986Planned (H) · Complete scope, Safety#2811602$02 viol.2 violations$0 in penalties
Inspection #2811602
Dates
- Opened
- Mar 3, 1986
- Closing Conference Date
- Mar 3, 1986
- Closed
- Apr 15, 1986
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 4
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 5625 O'donnell Street, Baltimore, MD 21224
- 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 (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1926.401 OSHA citation code: 19260401 A01 | Other | 1 | 2 | $0 | $0 | Mar 21, 1986 | - | - |
| 01002 | 1926.500 Fall Protection - Scope, Application, and Definitions OSHA citation code: 19260500 E01 IV | Other | 1 | 4 | $0 | $0 | Mar 21, 1986 | - | - |
Apr 15, 1985#14823637Apr 15, 1985Planned (H) · Complete scope, Safety#14823637$04 viol.4 violations$0 in penalties
Inspection #14823637
Dates
- Opened
- Apr 15, 1985
- Closing Conference Date
- Apr 15, 1985
- Closed
- Jun 7, 1985
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 4
Violations and Penalties
- Total Violations
- 4
- Violation Types
- 4 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 201 E University Pky, Baltimore, MD 21218
- 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 (4 of 4 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 890032 OSHA citation code: 890032 EA | Other | 1 | 4 | $0 | $0 | May 17, 1985 | - | - |
| 01002 | 890032 OSHA citation code: 890032 FA | Other | 1 | 4 | $0 | $0 | May 17, 1985 | - | - |
| 01003 | 890032 OSHA citation code: 890032 HA | Other | 1 | 4 | $0 | $0 | May 17, 1985 | - | - |
| 01004 | 890032 OSHA citation code: 890032 KA | Other | 1 | 4 | $0 | $0 | May 17, 1985 | - | - |
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.
11 inspections, 1984 to 2005. 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: plumbing, heating, and air-conditioning contractors reported 3.0 injuries and illnesses per 100 full-time workers (total recordable cases, national, private industry; relative standard error 5.2%; NAICS 23822 level). This is an industry-wide average from a federal survey, not a measurement of this establishment. Source