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Employers › NJ

Manufacturing · South Plainfield, NJ

Keystone Plastics, INC.

According to OSHA enforcement records (2010–2026), Keystone Plastics, INC. has a concerning safety record: 18 violations across 4 inspections. See the full breakdown below.

Top 10% by penalty89% serious
$43,582
OSHA penalties
18
Violations cited
4
OSHA inspections
#6,154
of 100,495 penalized employers

Keystone Plastics, INC. in South Plainfield, NJ has been the subject of 4 OSHA workplace inspections and 18 citations since 2010, according to enforcement records from the U.S. Department of Labor. Total penalties assessed: $43,582. All enforcement data below is sourced from the DOL public enforcement databases at data.dol.gov.

The record in one line

OSHA has inspected Keystone Plastics, INC. 4 times across a longer 10-year span, an infrequent cadence. These inspections resulted in 18 violations, averaging 4.5 per inspection, above what's typical for a single visit. Its total OSHA penalty ranks in the top 10% of penalized employers nationally. Of these, 16 were classified as serious - indicating hazards that could cause death or serious harm. Against the Manufacturing industry average of 3 inspections per employer, this runs moderately above peers (1.6x the sector average) on inspection frequency. For comparison, Landmark Plastic Corporation in Akron, OH is another manufacturing employer with 5 OSHA inspections on record and $43,575 in current penalties.

4.5
violations per inspection
88.9%
of violations were serious
94%
of penalized employers rank lower

How Keystone Plastics, INC. compares on OSHA penalties

Total current penalty vs the Manufacturing per-employer average

in penalties

What this shows Keystone Plastics, INC. runs well above peers (2.8x the sector average) in total OSHA penalties.

Source U.S. Department of Labor, OSHA enforcement extracts As of 2026

Where this penalty ranks nationally

Total current OSHA penalty vs every U.S. employer with a nonzero penalty

$43,582 Bottom 6% least affordable more affordable than 6% of 100,495 U.S. employers with a penalty

$0–$5,000: 44,435 U.S. employers with a penalty (44%). Below this entry. $5,000–$10,000: 20,628 U.S. employers with a penalty (21%). Below this entry. $10,000–$15,000: 11,165 U.S. employers with a penalty (11%). Below this entry. $15,000–$20,000: 6,629 U.S. employers with a penalty (7%). Below this entry. $20,000–$25,000: 4,205 U.S. employers with a penalty (4%). Below this entry. $25,000–$30,000: 2,885 U.S. employers with a penalty (3%). Below this entry. $30,000–$35,000: 2,052 U.S. employers with a penalty (2%). Below this entry. $35,000–$40,000: 1,483 U.S. employers with a penalty (1%). Below this entry. $40,000–$45,000: 1,120 U.S. employers with a penalty (1%). This entry sits in this band. $45,000–$50,000: 792 U.S. employers with a penalty (1%). Above this entry. $50,000–$55,000: 5,101 U.S. employers with a penalty (5%). Above this entry. This employer $0 $55,000 every penalized U.S. employer, bucketed by value

Each bar is a $5K-wide band; taller bars hold more U.S. employers with a penalty. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Labor, OSHA enforcement extracts · 2026

What the Data Says About Keystone Plastics, INC.

The federal enforcement record for Keystone Plastics, INC. in South Plainfield, NJ includes 4 OSHA inspections and 18 violations, translating to 4.50 violations per inspection. Of those violations, 16 (88.9%) were classified as serious, 0 (0.0%) as willful, and 0 (0.0%) as repeat. Serious violations denote hazards likely to cause death or serious physical harm; willful and repeat categories indicate intentional disregard or recurrence of previously cited hazards.

OSHA assessed $70,058 in initial penalties against this employer, later adjusted to a current total of $43,582 - a 37.8% reduction. Average penalty per inspection works out to $10,896. Against the Manufacturing industry average of $15,410 per employer, this record runs well above peers (2.8x the sector average).

Inspection activity spans from 2012-01-12 to 2021-09-20, a window of roughly 10 years.

Enforcement detail

OSHA Inspection History

Total Inspections

4

First Inspection

2012-01-12

Last Inspection

2021-09-20

Inspection Span

10 yrs

Violations / Inspection

4.5

Avg Penalty / Inspection

$10,896

Industry Avg / Inspection

$6,092

What this shows 4 inspections over 10 years, averaging 4.5 violations per visit. That's $10,896 per inspection vs. the Manufacturing average of $6,092.

Enforcement detail

Violation Breakdown

16

Serious

88.9% of total

0

Willful

0.0% of total

0

Repeat

0.0% of total

2

Other-Than-Serious

11.1% of total

What this shows Serious violations involve hazards that could cause death or serious physical harm. Willful violations indicate intentional or knowing disregard of the law. Repeat violations are for hazards previously cited within the past 5 years.

Enforcement detail

Penalty Analysis

Initial Penalty Assessed

$70,058

Current Penalty Amount

$43,582

Penalty Reduction

37.8%

What this shows Penalties were reduced by $26,476 from the initial assessment of $70,058. Reductions may result from informal settlements, formal contests, or negotiated agreements with OSHA.

Industry Safety Context: Manufacturing

How Keystone Plastics, INC. compares to the Manufacturing sector, which has 45,665 employers tracked by PlainWorker.

Metric Keystone Plastics, INC. Industry Avg
Inspections 4 2.5
Violations 18 7.8
Total Penalty $43,582 $15,410
Avg Penalty per Inspection $10,896 $6,092
View all 45,665 employers in Manufacturing →

Nearby & Similar Employers in Manufacturing

Landmark Plastic Corporation
Akron, OH
5 inspections $43,575
Amaral Custom Fabrications INC.
Rumford, RI
3 inspections $43,591
Light Metals Coloring CO., INC.
Southington, CT
6 inspections $43,594
Hanover Foods Corporation
Hanover, PA
7 inspections $43,568
Bell Helicopter
Amarillo, TX
0 inspections $0

Compare Keystone Plastics, INC. vs Landmark Plastic Corporation side-by-side →

Frequently Asked Questions

Is Keystone Plastics, INC. safe to work at? ▼
Based on OSHA records, Keystone Plastics, INC.'s workplace safety record is concerning, with multiple serious compliance issues. The employer has 18 violations across 4 inspections, including 16 serious violations. Compared to Manufacturing industry peers, this is above average for penalties. Review the full inspection history below for details.
How many OSHA violations does Keystone Plastics, INC. have? ▼
Keystone Plastics, INC. has 18 OSHA violations on record, including 16 serious, 0 willful, and 0 repeat violations. The total current penalty amount is $43,582.
How many OSHA inspections has Keystone Plastics, INC. had? ▼
Keystone Plastics, INC. has had 4 OSHA inspections, with the first recorded on 2012-01-12 and the most recent on 2021-09-20. This averages 4.5 violations per inspection.
What is the total penalty amount for Keystone Plastics, INC.? ▼
Keystone Plastics, INC. has been assessed $43,582 in current OSHA penalties, reduced from an initial assessment of $70,058 (a 37.8% reduction).
Does Keystone Plastics, INC. have any serious or willful violations? ▼
Yes. Keystone Plastics, INC. has 16 serious violations. Serious violations involve hazards likely to cause death or serious physical harm. Willful violations indicate the employer intentionally or knowingly disregarded the law.
What industry does Keystone Plastics, INC. operate in? ▼
Keystone Plastics, INC. operates in the Manufacturing sector (NAICS code 339994). This industry has 45,665 employers tracked by PlainWorker, with 115,522 total OSHA inspections and $703.72M in cumulative penalties.
How does Keystone Plastics, INC.'s safety record compare to industry average? ▼
Keystone Plastics, INC.'s total OSHA penalty of $43,582 is above the Manufacturing industry average of $15,410 per employer (2.8x the average). The employer has 4 inspections compared to the industry average of 2.5 per employer. For a direct comparison, Landmark Plastic Corporation in Akron, OH is a similar manufacturing employer with $43,575 in current penalties.

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What to check next

Keystone Plastics, INC.'s record is one establishment in a larger pattern. Use it as a research checklist, not a verdict on the employer overall.

These figures are the federal enforcement record on file and reflect past inspections, not a statement about current workplace conditions. See the disclaimer for how to read them.

Data Sources & Methodology ▼

Data as of 2026. Source: U.S. Department of Labor (OSHA, WHD).

Source: OSHA Enforcement Data

Inspection and violation records from the Occupational Safety and Health Administration (OSHA), U.S. Department of Labor, covering the period 2010–2026. Includes inspection dates, violation types (serious, willful, repeat, other-than-serious), and penalty amounts. Penalties shown are current assessed amounts and may differ from original citations due to settlement, contest, or reduction.

Source: Wage and Hour Division (WHD)

Compliance actions from the WHD, covering enforcement of the Fair Labor Standards Act (FLSA), including minimum wage, overtime, and child labor violations. Back wages represent amounts owed to affected employees as determined by WHD investigations.

Employer Matching

Employers are matched across OSHA and WHD datasets by name, state, and city. Employers included in PlainWorker have 2 or more OSHA inspections or $1,000+ in WHD back wages. Data is updated monthly from data.dol.gov.

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Every figure on PlainWorker is rendered directly from official U.S. Department of Labor OSHA and Wage & Hour Division enforcement records, no number is typed in by an editor. This employer's ratios (penalty-per-violation, industry comparisons) are computed live from the 4 inspections on record. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.