MIDWEST ACOUST-A-FIBER, INC.
759 PITTSBURGH DRIVE, DELAWARE, OH 43015 · NAICS 327993 Mineral Wool Manufacturing
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Mar 31, 2025#348146721Mar 31, 2025Referral (C) · Partial scope, Safety#348146721$9,0451 viol.1 violation$9,045 in penalties
Inspection #348146721
Dates
- Opened
- Mar 31, 2025
- Closing Conference Date
- Mar 31, 2025
- Final Order
- Aug 8, 2025
- Closed
- Aug 8, 2025
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 350
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 serious
- Initial Penalties
- $9,045
- Penalties on Record
- $9,045
- Site Address
- 759 Pittsburgh Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A03 II | Serious | 1 | 9 | $9,045 | $9,045 | Aug 18, 2025 | - | Aug 8, 2025 |
Dec 21, 2023#347177909Dec 21, 2023Complaint (B) · Partial scope, Health#347177909$1,6132 viol.2 violations$1,613 in penalties
Inspection #347177909
Dates
- Opened
- Dec 21, 2023
- Closing Conference Date
- Dec 21, 2023
- Final Order
- May 15, 2024
- Closed
- Jun 6, 2024
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 345
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $2,304
- Penalties on Record
- $1,613
- Site Address
- 759 Pittsburgh Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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 |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1904.29 Forms OSHA citation code: 19040029 B01 | Other | 1 | 1 | $2,304 | $1,613 | May 15, 2024 | - | May 15, 2024 |
| 01001B | 1904.32 Annual Summary OSHA citation code: 19040032 A03 | Other | 1 | 345 | $0 | $0 | May 15, 2024 | - | May 15, 2024 |
Jun 30, 2021#345393326Jun 30, 2021Complaint (B) · Partial scope, Safety#345393326$11,2893 viol.3 violations$11,289 in penalties
Inspection #345393326
Dates
- Opened
- Jun 30, 2021
- Closing Conference Date
- Jun 30, 2021
- Final Order
- Dec 1, 2021
- Closed
- Dec 8, 2021
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 200
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 3 other-than-serious
- Initial Penalties
- $28,116
- Penalties on Record
- $11,289
- Site Address
- 759 Pittsburgh Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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 (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 L02 II | Other | 1 | 1 | $13,516 | $11,289 | Jul 14, 2021 | - | Dec 1, 2021 |
| 01001B | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 L04 II B | Other | 1 | 2 | $13,516 | $0 | Jul 14, 2021 | - | Dec 1, 2021 |
| 01001C | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 L06 | Other | 1 | 1 | $1,084 | $0 | Jul 14, 2021 | - | Dec 1, 2021 |
Jun 28, 2018#343265740Jun 28, 2018Referral (C) · Partial scope, Safety#343265740$00 viol.0 violations$0 in penalties
Inspection #343265740
Dates
- Opened
- Jun 28, 2018
- Closing Conference Date
- Jun 28, 2018
- Closed
- Oct 2, 2018
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 180
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 759 Pittsburg Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Incident Investigation Summaries
Incident investigation summaries linked to this inspection through OSHA's accident and injury enforcement data. These summaries describe the reported incident. The enforcement outcome for the linked inspection is in the inspection details above.
Employee's fingers are amputated during hydraulic press malf
Mar 14, 2018#343014031Mar 14, 2018Referral (C) · Partial scope, Health#343014031$00 viol.0 violations$0 in penalties
Inspection #343014031
Dates
- Opened
- Mar 14, 2018
- Closing Conference Date
- Mar 14, 2018
- Closed
- Jun 27, 2018
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 150
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 759 Pittsburgh Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Feb 16, 2018#342954047Feb 16, 2018Complaint (B) · Partial scope, Safety#342954047$19,1184 viol.4 violations$19,118 in penalties
Inspection #342954047
Dates
- Opened
- Feb 16, 2018
- Closing Conference Date
- Mar 6, 2018
- Final Order
- May 15, 2018
- Closed
- Feb 27, 2019
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 150
- Related Activity
- 2 complaints
Violations and Penalties
- Total Violations
- 4
- Violation Types
- 4 serious
- Initial Penalties
- $27,310
- Penalties on Record
- $19,118
- Site Address
- 759 Pittsburgh Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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 (4 of 4 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 A04 | Serious | 1 | 4 | $12,675 | $8,873 | - | May 15, 2018 | |
| 01002A | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A01 | Serious | 1 | 3 | $9,147 | $6,403 | Apr 20, 2018 | - | May 15, 2018 |
| 01002B | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A03 II | Serious | 1 | 3 | $0 | $0 | Apr 20, 2018 | - | May 15, 2018 |
| 01004 | 1910.305 Electrical - Wiring Methods, Components, and Equipment OSHA citation code: 19100305 G01 IV A | Serious | 2 | 20 | $5,488 | $3,842 | Apr 20, 2018 | - | May 15, 2018 |
Jun 6, 2014#339799983Jun 6, 2014Complaint (B) · Partial scope, Safety#339799983$00 viol.0 violations$0 in penalties
Inspection #339799983
Dates
- Opened
- Jun 6, 2014
- Closing Conference Date
- Jun 9, 2014
- Closed
- Jun 6, 2014
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 170
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- 487 London Road, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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.
May 1, 2014#339752925May 1, 2014Complaint (B) · Partial scope, Safety#339752925$2,1042 viol.2 violations$2,104 in penalties
Inspection #339752925
Dates
- Opened
- May 1, 2014
- Closing Conference Date
- May 1, 2014
- Final Order
- Sep 5, 2014
- Closed
- Oct 9, 2014
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 170
- Related Activity
- 2 complaints
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 1 serious, 1 other-than-serious
- Initial Penalties
- $4,208
- Penalties on Record
- $2,104
- Site Address
- 487 London Road, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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 | 1910.255 Resistance Welding OSHA citation code: 19100255 B04 | Serious | 1 | 2 | $4,208 | $2,104 | Sep 6, 2014 | - | Sep 5, 2014 |
| 02001 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 B | Other | 1 | 50 | $0 | $0 | Sep 6, 2014 | - | Sep 5, 2014 |
Jan 13, 2014#339545196Jan 13, 2014Complaint (B) · Partial scope, Safety#339545196$7,0653 viol.3 violations$7,065 in penalties
Inspection #339545196
Dates
- Opened
- Jan 13, 2014
- Closing Conference Date
- Feb 24, 2014
- Final Order
- Mar 12, 2014
- Closed
- Jun 23, 2014
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 90
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 2 serious, 1 other-than-serious
- Initial Penalties
- $11,700
- Penalties on Record
- $7,065
- Site Address
- 759 Pittsburgh Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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 (3 of 3 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 | Serious | 1 | 6 | $4,500 | $2,385 | Jun 20, 2014 | - | Mar 12, 2014 |
| 01002 | 1910.212 General Requirements for All Machines (Machine Guarding) OSHA citation code: 19100212 A02 | Serious | 1 | 6 | $6,300 | $4,095 | - | Mar 12, 2014 | |
| 02001 | 1904.7 General Recording Criteria for Cases OSHA citation code: 19040007 B03 | Other | 1 | 90 | $900 | $585 | - | Mar 12, 2014 |
Apr 13, 2012#333325066Apr 13, 2012Complaint (B) · Partial scope, Safety#333325066$2,4101 viol.1 violation$2,410 in penalties
Inspection #333325066
Dates
- Opened
- Apr 13, 2012
- Closing Conference Date
- Apr 13, 2012
- Final Order
- May 9, 2012
- Closed
- May 16, 2012
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- No
- Number of Employees
- 150
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 serious
- Initial Penalties
- $3,443
- Penalties on Record
- $2,410
- Site Address
- 759 Pittsburg Drive, Delaware, OH 43015
- Industry
- 327993 Mineral Wool Manufacturing
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 (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.178 Powered Industrial Trucks OSHA citation code: 19100178 L04 II B | Serious | 1 | 1 | $3,443 | $2,410 | May 10, 2012 | - | May 9, 2012 |
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.
Source: U.S. Department of Labor OSHA incident investigation data (`osha_accident` + `osha_accident_injury`). Linked via `rel_insp_nr` to the inspection activity number (exact government key). Injury, body part, source and event values are OSHA's own codes. OSHA states that these fields are not coded according to the requirements under the Occupational Injury and Illness Classification System (OIICS). Only the values present in the OSHA record are listed; an incident with no value that resolves in OSHA's code table shows "Injury details not recorded". Where a record covers several people, each field lists every value recorded across them.
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.
18 inspections, 1989 to 2025. 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
Chemical exposure sampling
Sample results are listed in the record of each inspection that collected them.
Industry comparison
Nonmetallic Mineral Product Manufacturing, 17,265 employers with OSHA inspections. Arithmetic from DOL records.