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Master Machine Inc: OSHA inspections and violations

Blaine, Minnesota · Machine Shops · NAICS 332710

7inspections
27citation items
$10,270current penalties
Jun 16, 2025last inspection

OSHA has inspected Master Machine Inc 7 times in Minnesota since 2006.

The latest one began on Jun 16, 2025 as a planned inspection, in Minneapolis.

Those inspections ended with 27 citation items: 20 serious, 1 repeat and 6 other-than-serious.

Penalties were first proposed at $14,150 and now stand at $10,270, 27% lower after settlements or reviews.

Lockout/tagout comes up most often in these citations: 6 items under 1910.147.

How that compares: the median penalty per cited inspection for manufacturing employers since 2015 is $3,600, and Master Machine Inc averages $1,500 (3 cited inspections).

Master Machine Inc also files yearly injury logs with OSHA, summarized below.

Master Machine Inc: OSHA citation items per year, 2006 to 2025
Citation items per year, by inspection date.

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Inspection history

Inspection 348317512 OPENED JUN 16, 2025Closed

Planned · Complete · Safety · 55 employees at the site · Closed Jul 22, 2025

10840 Mankato St Ne, Minneapolis, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 1910.147(c)(6)(i) · Lockout/tagout
 Serious$600$360Jul 2, 2025Final
Citation 1, item 2
29 CFR 1910.212(a)(1) · Machine guarding
 Serious$600$360Jul 2, 2025Final
Citation 1, item 3
29 CFR 1910.304(g)(5) · Grounding and circuit protection
 Serious$1,000$600Jul 2, 2025Final
Citation 2, item 1
29 CFR 1910.305(g)(2)(iii) · Electrical wiring methods
 Other-than-serious$200$120Jul 2, 2025Final

Inspection 345082366 OPENED DEC 29, 2020Closed

Planned · Complete · Safety · 25 employees at the site · Closed Jan 19, 2021

10840 Mankato St Ne, Minneapolis, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1 Serious$300$210Jan 8, 2021Final

Inspection 342121522 OPENED FEB 15, 2017Closed

Planned · Complete · Safety · 30 employees at the site · Closed Jun 13, 2017

10840 Mankato St Ne, Minneapolis, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 1910.147(c)(4)(i) · Lockout/tagout
 Serious$1,050$630Mar 8, 2017Final
Citation 1, item 2
29 CFR 1910.147(c)(6)(i) · Lockout/tagout
 Serious$1,050$630Mar 8, 2017Final
Citation 1, item 3
29 CFR 1910.212(a)(3)(ii) · Machine guarding
 Serious$1,050$630Mar 8, 2017Final
Citation 1, item 4
29 CFR 1910.1200(f)(6)(i) · Hazard communication
 Serious$600$360Mar 8, 2017Final
Citation 1, item 5 Serious$600$360Mar 8, 2017Final
Citation 2, item 1
29 CFR 1910.305(g)(1)(iv) · Electrical wiring methods
 Other-than-serious$150$90Mar 8, 2017Final
Citation 2, item 2 Other-than-serious$150$150Mar 8, 2017Final

Inspection 317172567 OPENED JUN 27, 2013Closed

Planned · Complete · Health · 42 employees at the site · Closed Oct 21, 2013

10840 Mankato St Ne, Blaine, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1 Repeat$750$500Jul 17, 2013Final
Citation 2, item 1 Serious$600$400Jul 17, 2013Final
Citation 2, item 2 Serious$600$400Jul 17, 2013Final
Citation 3, item 1
29 CFR 1910.305(g)(1)(iv) · Electrical wiring methods
 Other-than-serious$150$100Jul 17, 2013Final

Inspection 314986712 OPENED OCT 12, 2010Closed

Planned · Complete · Safety · 40 employees at the site · Closed Nov 30, 2010

10840 Mankato St Ne, Blaine, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 1910.147(c)(4)(i) · Lockout/tagout
 Serious$450$450Oct 27, 2010Closed
Citation 1, item 2
29 CFR 1910.147(c)(7)(i) · Lockout/tagout
 Serious$450$450Oct 27, 2010Closed
Citation 1, item 3
29 CFR 1910.151(c) · First aid and eyewash
 Serious$750$750Oct 27, 2010Closed
Citation 1, item 4
29 CFR 1910.303(g)(2)(i) · Electrical equipment, general requirements
 Serious$750$750Oct 27, 2010Closed
Citation 1, item 5 Serious$450$450Oct 27, 2010Closed
Citation 1, item 6 Serious$750$750Oct 27, 2010Closed
Citation 2, item 1
29 CFR 1910.147(c)(6)(i) · Lockout/tagout
 Other-than-serious$0$0Oct 27, 2010Closed

Inspection 310725148 OPENED JAN 16, 2007Closed

Referral · Partial · Health · 45 employees at the site · Closed Mar 12, 2007

10840 Mankato St Ne, Blaine, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1 Serious$400$280Feb 20, 2007Closed

Inspection 310723911 OPENED DEC 20, 2006Closed

Planned · Complete · Safety · 45 employees at the site · Closed Feb 1, 2007

10840 Mankato St Ne, Blaine, MN 55449 · Machine Shops · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 1
29 CFR 1910.212(a)(1) · Machine guarding
 Serious$300$210Jan 19, 2007Closed
Citation 1, item 2
29 CFR 1910.242(b) · Hand and power tools
 Serious$300$210Jan 19, 2007Closed
Citation 2, item 1 Other-than-serious$100$70Jan 19, 2007Closed

Injury and illness logs

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

In 2025, the Blaine site logged 1 recordable injury or illness among about 34 workers: 3.0 per 100 full-time workers, against a median of 2.7 for its industry.

Site and yearWorkersCasesDays-away casesRateIndustry median
Mmi BL
Blaine · 2025
34 103.02.7

The rules behind these citations

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

29 CFR 1910.1200 · Hazard communication

29 CFR 1910.1200(f)(6)(i)

(i) The information specified under paragraphs (f)(1)(i) through (v) of this section for labels on shipped containers; or,

29 CFR 1910.147 · Lockout/tagout

29 CFR 1910.147(c)(4)(i)

(4) Energy control procedure. (i) Procedures shall be developed, documented and utilized for the control of potentially hazardous energy when employees are engaged in the activities covered by this section.

29 CFR 1910.147(c)(6)(i)

(6) Periodic inspection. (i) The employer shall conduct a periodic inspection of the energy control procedure at least annually to ensure that the procedure and the requirements of this standard are being followed.

29 CFR 1910.151 · First aid and eyewash

29 CFR 1910.212 · Machine guarding

29 CFR 1910.242 · Hand and power tools

29 CFR 1910.303 · Electrical equipment, general requirements

29 CFR 1910.304 · Grounding and circuit protection

29 CFR 1910.305 · Electrical wiring methods

29 CFR 1910.95 · Noise

29 CFR 5205.1200

29 CFR 5205.675

29 CFR 5205.710

29 CFR 5205.880

29 CFR 5205.890

29 CFR 5206.1000

29 CFR 5206.700

Other machine shops employers in Minnesota

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.