Inspection 348943127 OPENED MAY 15, 2026Closed
5916 County Road 48, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
Willows, California · Mineral Wool Manufacturing · NAICS 327993
Since 1998, OSHA inspectors have visited Johns Manville in California 20 times.
The most recent inspection opened on May 15, 2026 after a complaint, in Willows.
In all, OSHA issued 37 citation items: 8 serious and 29 other-than-serious.
The proposed penalties came to $158,730; today they stand at $92,975, 41% less.
Among manufacturing employers, the typical cited inspection since 2015 ends with a $4,500 penalty. Johns Manville averages $8,433 across 7 cited inspections.
Johns Manville also files yearly injury logs with OSHA, summarized below.
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Watch this company5916 County Road 48, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
5916 County Rd. 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 3314(J) |
Other-than-serious | $635 | $635 | Sep 8, 2022 | Final |
| Citation 2, item 1 29 CFR 3314(D) |
Other-than-serious | $9,560 | $3,000 | Sep 8, 2022 | Final |
| Citation 5, item 1 29 CFR 3314(L)(1) |
Serious | $22,500 | $22,500 | Sep 8, 2022 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 OSH Act Section 5(a)(1) · General Duty Clause |
Other-than-serious | $300 | $300 | Aug 19, 2021 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on May 14, 2020: Employee fractures ribs when struck by table
At 1:40 p.m. on May 14, 2020, an employee was working under a scissor lift style table. A coworker used a pry bar to move the table, causing the pin to lock the caster. The table fell onto the employee's chest. The LOTO procedure was ineffective. The employee suffered multiple rib fractures. The employee was hospitalized for two days.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 2, item 1 29 CFR 3314(C) |
Serious | $22,500 | $11,250 | Nov 13, 2020 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on May 13, 2019: Employee injures arm when struck by metal pole
At 9:36 a.m. on May 13, 2019, an employee and his coworker were cleaning the inside of an exhaust duct. The employee was holding a flashlight shining light into the duct so the coworker could clean the duct. The coworker had not made sure the blind was inserted into the duct and as he inserted the pole to clean the duct the pole was pulled from his hands and made contact with the fan blades causing it to move erratically and strike the employee. The employee was hospitalized with a puncture wound to his right arm.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 3556(B) |
Other-than-serious | $475 | $475 | Jun 21, 2019 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
5916 County Rd 49, Willows, CA 95988 · Polystyrene Foam Product Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on Jul 20, 2018: Employee amputates and lacerates several fingers while troub
At 8:50 a.m. on July 20, 2018, an employee was troubleshooting a fan motor that had it's guard removed. The employee has his right hand pulled into the fan motor pulley and amputated his ring finger and thumb to the first knuckle, crushed the tip of his middle finger, and lacerated his pinky. The employee was hospitalized.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 3210(C) |
Other-than-serious | $935 | $0 | Sep 21, 2018 | Final |
| Citation 1, item 2 29 CFR 3270(A) |
Other-than-serious | $935 | $935 | Sep 21, 2018 | Final |
| Citation 2, item 1 29 CFR 3314(G)(2)(A) |
Other-than-serious | $5,060 | $935 | Sep 21, 2018 | Final |
| Citation 3, item 1 29 CFR 3314(C) |
Serious | $22,500 | $18,000 | Sep 21, 2018 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 3241(C) |
Other-than-serious | $935 | $600 | Sep 21, 2018 | Final |
4301 E. Firestone Blvd, South Gate, CA 90280 · Asphalt Shingle and Coating Materials Manufacturing · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 3328(G) |
Other-than-serious | $4,050 | $400 | Sep 20, 2016 | Final |
4301 E Firestone Bl, South Gate, CA 90280 · Asphalt Paving Mixture and Block Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on Feb 24, 2009: Employee amputates finger in machine
At approximately 11:03 a.m. on February 24, 2009, an employee was adjusting roof ing material to allow the roll winder machine to continue rolling the roofing ma terial. The machine that the employee was working on was a left hand ejected ele ctric drive roll winder and core inserter manufactured by Reichel and Drews Inc. The employee suffered an amputation to the distal phalanx of his right ring fin ger. The cause of the accident was due to improper guarding of the roll winder m achine he was working on. It was determined that there had been a power surge in which production was briefly interrupted. This caused the material in the produ ction line to sink into the cooling water. The wet material caused winding issue s and moved the roofing material out of alignment because of its wet state. At t his point, the employee had switched the machine into manual mode to adjust the material. While adjusting the material, the role winder started, causing the apr on, guiding plate, to pinch his right hand between it and the spindle. The emplo yee was hospitalized and treated for a finger amputation.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 342 A |
Other-than-serious | $5,000 | $0 | May 19, 2009 | Final |
| Citation 2, item 1 29 CFR 4075 A |
Serious | $5,060 | $270 | May 19, 2009 | Final |
| Citation 3, item 1 29 CFR 4184 B |
Serious | $18,000 | $18,000 | May 19, 2009 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on Nov 8, 2006: Employee's fingers are amputated by conveyor
On November 8, 2006, Employee #1 was working in the finishing department of a fi ber glass manufacturing plant. When he reached to pull a piece of scrap from the main conveyor line, his glove became caught between the edge of the belt and a pulley. The tips of Employee #1's left middle and ring fingers were amputated.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 342 A |
Other-than-serious | $5,000 | $150 | Jul 16, 2007 | Final |
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on Mar 15, 2005: Employee amputates finger while changing rolls of tape
On March 15, 2005, Employee #1, a packaging operator for an employer who manufac turers fiber glass insulation, was changing rolls of tape on a taping machine. A s Employee #1 observed a jammed roll and placed the machine into manual feed mod e, she proceeded to change the role. Her finger became caught in the machine, re sulting in the amputation of her right middle finger. Employee #1 was hospitaliz ed and treated for her injury. The accident investigation revealed that Employee #1 had been trained and was following the employers set procedures.
No citations from this inspection.
5916 County Road 49, Willows, CA 95988 · Mineral Wool Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on Oct 30, 2003: Employee is found unconscious
Employee #1 was observed laying on the floor, unconscious and with a small ladde r that he had pulled onto himself. Employee #1 was taken by ambulance to the hos pital where it was determined he had a nonwork-related personal medical problem.
No citations from this inspection.
420 East 3rd St, Pittsburg, CA 94565 · Asphalt Shingle and Coating Materials Manufacturing · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
420 E. 3rd St., Pittsburg, CA 94565 · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
1251 Magnolia Avenue, Corona, CA 91719 · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 461 A |
Other-than-serious | $450 | $0 | Feb 2, 2001 | Final |
| Citation 1, item 2 29 CFR 470 A |
Other-than-serious | $450 | $450 | Feb 2, 2001 | Closed |
| Citation 1, item 3 29 CFR 3214 A |
Other-than-serious | $225 | $150 | Feb 2, 2001 | Final |
| Citation 1, item 4 29 CFR 5143 A05 |
Other-than-serious | $335 | $225 | Feb 2, 2001 | Final |
| Citation 1, item 5 29 CFR 5157 C02 |
Other-than-serious | $675 | $0 | Feb 2, 2001 | Final |
| Citation 1, item 6 29 CFR 5157 C07 C |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 7 29 CFR 5157 D01 |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 8 29 CFR 5157 F |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 9 29 CFR 5157 C05 B3 |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 10 29 CFR 5157 G01 |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 11 29 CFR 5157 K02 |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 12 29 CFR 480 B |
Other-than-serious | $675 | $450 | Feb 2, 2001 | Final |
| Citation 1, item 13 29 CFR 5217 D01 D |
Other-than-serious | $450 | $450 | Feb 2, 2001 | Final |
| Citation 2, item 1 29 CFR 472 B |
Serious | $8,100 | $2,700 | Feb 2, 2001 | Final |
| Citation 3, item 1 29 CFR 5167 D |
Serious | $10,125 | $6,750 | Feb 2, 2001 | Final |
| Citation 4, item 1 29 CFR 450 A01 |
Serious | $8,100 | $0 | Feb 2, 2001 | Final |
1251 Magnolia Ave, Corona, CA 91719 · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 5217 O01 |
Other-than-serious | $300 | $300 | Nov 3, 2000 | Closed |
| Citation 1, item 2 29 CFR 5217 E01 |
Other-than-serious | $300 | $300 | Nov 3, 2000 | Closed |
1251 Magnolia Ave, Corona, CA 91719 · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 4184 B |
Other-than-serious | $450 | $450 | Jan 7, 2000 | Closed |
1251 Magnolia Ave, Corona, CA 91719 · OSHA's record · Phone and website on Google Maps
Incident on Aug 25, 1998: Employee's fingertip amputated by jacket machine knife
Employee #1 was using an automatic jacket machine to apply surface material and tape to round fiberglass pipe insulation. The tape jammed at the location of a p neumatically operated knife that cut it into pre-programmed lengths. Employee #1 was manually feeding in the tape when the knife cycled, amputating the tip of h is finger.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 342 A |
Other-than-serious | $300 | $300 | Nov 6, 1998 | Final |
| Citation 1, item 2 29 CFR 342 A |
Other-than-serious | $300 | $300 | Nov 6, 1998 | Final |
From the Form 300A summaries employers file with OSHA each year. Rate = recordable cases per 100 full-time workers.
In 2025, the Willows site logged 0 recordable injuries or illnesses among about 365 workers: 0.0 per 100 full-time workers, against a median of 2.6 for its industry.
| Site and year | Workers | Cases | Days-away cases | Rate | Industry median |
|---|---|---|---|---|---|
| Willows site Willows · 2025 | 365 | 0 | 0 | 0.0 | 2.6 |
| South Gate site South Gate · 2025 | 36 | 0 | 0 | 0.0 | 0.6 |
Current text from the Code of Federal Regulations. Some citations were issued under older wording.
OSH Act Section 5(a)(1)
Each employer shall furnish to each of his employees employment and a place of employment which are free from recognized hazards that are causing or are likely to cause death or serious physical harm to his employees.
Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.