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J.R. Simplot Company: OSHA inspections and violations

Lathrop, California · Nitrogenous Fertilizer Manufacturing · NAICS 325311

28inspections
30citation items
$40,380current penalties
Sep 12, 2025last inspection

OSHA has inspected J.R. Simplot Company 28 times in California since 1988.

The latest one began on Sep 12, 2025 after an accident, in Firebaugh; the case is still open.

Those inspections ended with 30 citation items: 12 serious and 18 other-than-serious.

Penalties were first proposed at $53,075 and now stand at $40,380, 24% lower after settlements or reviews.

How that compares: the median penalty per cited inspection for manufacturing employers since 2015 is $4,500, and J.R. Simplot Company averages $3,581 (8 cited inspections).

J.R. Simplot Company also files yearly injury logs with OSHA, summarized below.

J.R. Simplot Company: OSHA citation items per year, 1988 to 2025
Citation items per year, by inspection date.

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Inspection history

Inspection 348500554 OPENED SEP 12, 2025Open

Accident · Partial · Safety · 21 employees at the site · Open

35836 W. Bullard Ave, Firebaugh, CA 93622 · Other Farm Product Raw Material Merchant Wholesalers · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3203(A)(4)
Other-than-serious$110$110Jan 29, 2026Open
Citation 2, item 1
29 CFR 4002(A)
Serious$6,300$6,300Jan 29, 2026Open
Citation 3, item 1
29 CFR 3441(A)(2)(C)
Serious$15,750$15,750Jan 29, 2026Open

Inspection 347538654 OPENED JUN 10, 2024Closed

Complaint · Partial · Safety · 100 employees at the site · Closed Aug 30, 2024

16777 South Howland Road, Lathrop, CA 95330 · Fertilizer (Mixing Only) Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 341(C)(1)(A)
Other-than-serious$935$935Aug 6, 2024Final

Inspection 343789061 OPENED FEB 15, 2019Closed

Accident · Partial · Safety · 46 employees at the site · Closed Nov 12, 2019

19421 Creek Rd., Bakersfield, CA 93314 · Fertilizer (Mixing Only) Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3203(A)
Other-than-serious$210$210Jul 24, 2019Final

Inspection 343556833 OPENED OCT 24, 2018Closed

Complaint · Partial · Safety · 15 employees at the site · Closed Mar 29, 2019

16777 Howland Rd, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 343253688 OPENED JUN 26, 2018Closed

Planned · No inspection · Safety · 150 employees at the site · Closed Oct 1, 2018

16777 South Howland Rd, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 342001005 OPENED DEC 29, 2016Closed

Complaint · Partial · Health · 85 employees at the site · Closed Jan 9, 2018

21817 Fresno Coalinga Road, Five Points, CA 93624 · Fertilizer (Mixing Only) Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3395(I)
Other-than-serious$185$150Apr 7, 2017Final

Inspection 341995348 OPENED DEC 19, 2016Closed

Unprogrammed related · Partial · Safety · 50 employees at the site · Closed Apr 27, 2017

16777 South Howland Rd, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 341520666 OPENED JUN 2, 2016Closed

Accident · Partial · Safety · 150 employees at the site · Closed Jul 14, 2016

16777 Howland Road, Lathrop, CA 95330 · Soil Preparation, Planting, and Cultivating · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

20 older inspections

Inspection 340832336 OPENED AUG 5, 2015Closed

Planned · Partial · Safety · 38 employees at the site · Closed Mar 9, 2016

12688 S. Colorado Ave, Helm, CA 93627 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 458(C)
Other-than-serious$225$225Jan 5, 2016Final
Citation 1, item 2
29 CFR 507(C)
Other-than-serious$225$225Jan 5, 2016Final
Citation 1, item 3
29 CFR 507(I)
Other-than-serious$225$225Jan 5, 2016Final
Citation 1, item 4
29 CFR 509(K)
Other-than-serious$225$225Jan 5, 2016Final
Citation 1, item 5
29 CFR 5162(A)
Other-than-serious$600$600Jan 5, 2016Final

Inspection 340817006 OPENED JUL 31, 2015Closed

Complaint · Partial · Health · 150 employees at the site · Closed Feb 17, 2016

16777 Howland Road, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3999(B)
Serious$2,700$2,700Nov 12, 2015Final
Citation 2, item 1 Serious$2,700$270Nov 12, 2015Final
Citation 3, item 1
29 CFR 4002(A)
Serious$2,700$270Nov 12, 2015Final

Inspection 340926021 OPENED JUL 31, 2015Closed

Planned · Partial · Safety · 150 employees at the site · Closed Mar 14, 2016

16777 Howland Road, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3321(A)
Other-than-serious$225$225Nov 4, 2015Final

Inspection 340715077 OPENED JUN 17, 2015Closed

Complaint · Partial · Health · 150 employees at the site · Closed Mar 16, 2016

16777 Howland Road, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3328(A)
Other-than-serious$225$225Nov 4, 2015Final

Inspection 314327982 OPENED JUL 28, 2011Closed

Complaint · Partial · Safety · 13 employees at the site · Closed Mar 7, 2016

2929 W. Harney Lane, Lodi, CA 95242 · Fertilizer (Mixing Only) Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3210 A
Other-than-serious$335$335Oct 4, 2011Closed
Citation 2, item 1
29 CFR 5157 K
Serious$5,400$5,400Oct 4, 2011Closed
Citation 3, item 1
29 CFR 5157 D09
Serious$5,400$0Oct 4, 2011Closed

Inspection 311067979 OPENED OCT 12, 2007Closed

Accident · Partial · Safety · 120 employees at the site · Closed Mar 20, 2008

16777 Howland Road, Lathrop, CA 95330 · Nitrogenous Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

Incident on Oct 9, 2007: Two employees burned when molten sulfur ignited

At 3:00 p.m. on October 9, 2007, two employees were working at a fertilizer manu facturing facility in Lathrop, California. At the time of the accident, Employee #1 and Employee #2 were attempting to clear a sulfur plug out of a steam conden sate line located at the sulfur plant. The steam condensate line was heated with a rosebud torch, starting from the bottom of the pipe and working upwards. The two employees successfully heated and cleared a sulfur plug, but were not aware that a second sulfur plug had formed above. While continuing to heat the steam c ondensate line, water that was trapped above the second plug became overheated, converting to steam. When the steam pressure increased to a critical level, the steam condensate pipe failed, and steam with molten sulfur sprayed out of an ope ning that formed. The molten sulfur ignited as it covered the two employees, cau sing their shirts to ignite as well. Employee #1 suffered second-degree burns to his right arm and face. Employee #2 suffered second-degree burns to his right h and and face. The two injured employees were taken to Kaiser Permanente Manteca Medical Center in Manteca, California, for treatment.

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR LC6401
Serious$0$0Mar 13, 2008Closed

Inspection 310546833 OPENED JUN 28, 2007Closed

Complaint · Partial · Health · 145 employees at the site · Closed Jun 28, 2007

16777 S Howland Rd, Lathrop, CA 95330 · Phosphatic Fertilizer Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 6151 E01
Other-than-serious$0$0Jun 28, 2007Closed

Inspection 309905677 OPENED APR 26, 2007Closed

Planned · Partial · Health · 5 employees at the site · Closed Dec 31, 2007

302 E Danenberg Dr, El Centro, CA 92243 · Soil Preparation, Planting, and Cultivating · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 5189 H07
Other-than-serious$300$300Jun 13, 2007Closed

Inspection 125790931 OPENED DEC 27, 2006Closed

Accident · Partial · Safety · 145 employees at the site · Closed Apr 24, 2007

16777 S Howland Rd, Lathrop, CA 95330 · All Other Miscellaneous Chemical Product and Preparation Manufacturing · OSHA's record · Phone and website on Google Maps

Incident on Aug 23, 2006: Employee suffers chemical burn during pressure testing

On August 23, 2006, Employee #1 was pressure testing a railcar, containing H2SO4 . The cap of the railcar blew off and sprayed Employee #1 with H2SO4, resulting in chemical burns on his left leg. Employee #1 was hospitalized and treated for his injury.

No citations from this inspection.

Inspection 125739748 OPENED DEC 10, 2002Closed

Complaint · Partial · Safety · 150 employees at the site · Closed Apr 13, 2005

16777 Howland Road, Lathrop, CA 95330 · Pesticide and Other Agricultural Chemical Manufacturing · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 507 G
Other-than-serious$300$300May 9, 2003Final
Citation 2, item 1
29 CFR 3210 B
Other-than-serious$2,700$300May 9, 2003Final
Citation 3, item 1
29 CFR 5189 J01 A
Serious$2,700$2,700May 9, 2003Final

Inspection 119795359 OPENED MAR 26, 1998Closed

Accident · Partial · Safety · 225 employees at the site · Closed Jul 6, 1998

16777 Howland Road, Lathrop, CA 95330 · OSHA's record · Phone and website on Google Maps

Incident on Nov 18, 1997: Employee deluged by chemical release

On November 18, 1997, Employee #1 of J.R. Simplot Transportation Division was in jured from a sudden release of Ammonium Hydroxide, (Aqua Ammonia), from a tank h e was filling at Kirkwood Resort Company. He suffered chemical burns to his left eye, mouth, and throat and was hospitalized. He claimed the chemical goggles an d full face shield he was wearing were knocked off by the sudden release.

No citations from this inspection.

Inspection 119792232 OPENED JUL 7, 1997Closed

Accident · Partial · Safety · 225 employees at the site · Closed Apr 8, 1998

16777 Howland Road, Lathrop, CA 95330 · OSHA's record · Phone and website on Google Maps

Incident on May 29, 1997: Employee injured when caught between control panel and beam

At approximately 11:00 a.m. on May 29, 1997, Employee #1 was working alone using an aerial lift elevated approximately 19.5 ft. He was replacing return rollers on the bottom of the Number 1 product conveyor in the pellet plant. Employee #1 maneuvered the lift into position replacing one roller at a time. When he needed to move the unit, he would relocate and reposition the lift for each roller cha nge located along the conveyor line. There were no witnesses to the accident, bu t workers responded when it was observed that the unit was still in gear. Employ ee #1 was not conscious and was slumped over the control lever holding it in the drive position. His chest was caught between the control panel of the unit and a steel I-beam conveyor support. The lift basket was lowered and emergency medic al response followed. Employee #1 was taken to the hospital.

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3648 B
Serious$1,500$1,500Nov 24, 1997Closed
Citation 2, item 1
29 CFR 3328 B
Serious$150$150Nov 24, 1997Closed

Inspection 111965281 OPENED JUN 14, 1995Closed

Accident · Partial · Safety · 13 employees at the site · Closed Jul 14, 1995

2947 Hwy 20, Colusa, CA 95932 · OSHA's record · Phone and website on Google Maps

Incident on May 21, 1995: Employee's finger amputated when ring catches on rack

At 10:00 a.m. on May 21, 1995, Employee #1, of J.R. Simplot Co., was delivering sacks of fertilizer to a rice farm. He had removed a metal rack section from the right side of a Ford 1-ton flatbed truck and was on the truck bed hand lifting and carrying 80 lb sacks of fertilizer from a pallet to the edge of the truck be d. Employee #1 attempted to get off the truck bed by stepping on the edge of the right rear tire. He either slipped or just stepped down and his ring caught on the metal edge on an adjacent section of metal rack. The force degloved the empl oyee's little finger at the bottom joint and amputated the finger at the main kn uckle. Employee #1 was taken to Stanford Medical Center, where the finger was re attached.

No citations from this inspection.

Inspection 119804201 OPENED DEC 28, 1994Closed

Accident · Partial · Safety · 160 employees at the site · Closed Apr 6, 1995

16777 Howland Road, Lathrop, CA 95330 · OSHA's record · Phone and website on Google Maps

Incident on Dec 7, 1994: Employee amputates finger while cleaning machine

On December 7, 1994, Employee #1, an experienced tablet machine operator and war ehouseman for a large national company, was cleaning the pockets in a die table. The machine was running. One of his fingers became caught and was amputated in the machine. He was hospitalized. Cleaning with the machine in operation is a sp ecific violation of the employer's written lockout procedure for this machine. A lockout device was available at the disconnect, 10 ft away. Employee #1 might h ave been distracted by grief over the death of his son, whose funeral was the da y before. A general violation of 8CCR3314(a) is being cited.

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 3314 A
Other-than-serious$300$300Jan 30, 1995Closed

Inspection 112219217 OPENED OCT 2, 1991Closed

Accident · Partial · Safety · 12 employees at the site · Closed Nov 12, 1991

1333 S. Blosser Rd., Santa Maria, CA 93454 · OSHA's record · Phone and website on Google Maps

Incident on Jun 22, 1991: Employee injured by falling stack of strawberry crates

Employee #1, of J. R. Simplot Co., was removing crates of strawberries from pall ets and dumping the strawberries into a sorter machine. A coworker driving a for klift brought a pallet of strawberries, 6 stacks of 12 crates each, to Employee #1's work station. The coworker set the pallet down and, as he pulled the forkli ft away, one of the stacks of twelve 17 lb crates of strawberries fell over agai nst Employee #1's back, causing him to fall against the sorter machine. Employee #1 was not seriously injured. A broken back corner of the pallet caused the sta ck to fall over. The coworker could not see the broken pallet when he picked it up with the forklift. The pallet had come in from the field broken.

No citations from this inspection.

Inspection 112211784 OPENED JUN 4, 1991Closed

Follow-up · Partial · Safety · 19 employees at the site · Closed Jun 4, 1991

288 Guadalupe St., Guadalupe, CA 93434 · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 112211461 OPENED APR 10, 1991Closed

Follow-up · Partial · Safety · 19 employees at the site · Closed Jan 9, 1992

288 Guadalupe St., Guadalupe, CA 93434 · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 112211453 OPENED APR 5, 1991Closed

Accident · Partial · Safety · 19 employees at the site · Closed Jan 9, 1992

288 Guadalupe St., Guadalupe, CA 93434 · OSHA's record · Phone and website on Google Maps

Incident on Apr 1, 1991: Employee's finger partially amputated in pulley

Employee #1, of J. R. Simplot Company, Guadeloupe, CA, was assigned by his super visor to help a coworker lift pieces of plywood to the top of a 40 ft high stora ge tank. They were using a cable that went over a pulley tied to the guardrail a t the top of the tank, down to another pulley, and then connected to a forklift. The forklift pulled the cable out and lifted the plywood attached to the other end. As the plywood reached the top of the tank and Employee #1 grabbed it, the wind blew the plywood around, and his little finger became caught in the nip poi nt of the cable and pulley. His finger was amputated up to the first joint. The pulley was unguarded.

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 4984
Other-than-serious$0$0Apr 8, 1991Closed
Citation 2, item 1
29 CFR 5253 A
Serious$450$450Apr 8, 1991Closed

Inspection 112212147 OPENED AUG 13, 1990Closed

Complaint · Partial · Safety · 140 employees at the site · Closed Aug 29, 1990

1333 S. Blosser Rd., Santa Monica, CA 93454 · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Inspection 100924794 OPENED MAY 4, 1988Closed

Complaint · Partial · Health · 135 employees at the site · Closed May 12, 1988

16777 Higland Ave., Lathrop, CA 95330 · OSHA's record · Phone and website on Google Maps

No citations from this inspection.

Injury and illness logs

From the Form 300A summaries employers file with OSHA each year. Rate = recordable cases per 100 full-time workers.

In 2019, the Lathrop site logged 5 recordable injuries or illnesses among about 142 workers: 3.5 per 100 full-time workers, against a median of 1.6 for its industry. Those cases cost 2 days away from work.

Site and yearWorkersCasesDays-away casesRateIndustry median
JR Simplot-Lathrop Plant
Lathrop · 2019
142 513.51.6
JR Simplot Company-SGS Five Points
Five Points · 2019
75 405.62.3
JR Simplot Company-SGS Firebaugh
Firebaugh · 2019
46 305.92.3
JR Simplot Company-SGS Bakersfield
Bakersfield · 2019
45 316.52.3
JR Simplot Company-Helm Plant
Helm · 2019
37 000.01.6
JR Simplot Company-SGS Edison
Bakersfield · 2019
31 113.12.3
JR Simplot Company-SGS Guadalupe
Guadalupe · 2019
25 000.02.3
JR Simplot Company -SGS Westside
Helm · 2019
21 000.02.3

The rules behind these citations

Current text from the Code of Federal Regulations. Some citations were issued under older wording.

29 CFR 3087.6

Other nitrogenous fertilizer manufacturing employers in California

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.