Inspection 348750035 OPENED FEB 13, 2026Closed
4701 Blalock Road, Houston, TX 77041 · Oil and Gas Field Machinery and Equipment Manufacturing · OSHA's record · Phone and website on Google Maps
No citations from this inspection.
Since 2018, OSHA inspectors have visited Semasys Inc . in Texas 3 times.
The most recent inspection opened on Feb 13, 2026 to follow up on an earlier case, in Houston.
In all, OSHA issued 5 citation items: 4 serious and 1 other-than-serious.
The proposed penalties came to $35,537; today they stand at $20,251, 43% less.
The rule cited most here is 1910.212 (machine guarding), 2 times.
Among manufacturing employers, the typical cited inspection since 2015 ends with a $3,600 penalty. Semasys Inc . averages $10,126 across 2 cited inspections.
Semasys Inc . also files yearly injury logs with OSHA, summarized below.
It reported 1 severe injury to OSHA since 2015.
Texas · latest 90 days of OSHA records
391employers cited
2 of them in the same industry
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Watch this companyInspection history
Inspection 348171588 OPENED APR 10, 2025Closed
4701 Blalock Road, Houston, TX 77041 · Oil and Gas Field Machinery and Equipment Manufacturing · OSHA's record · Phone and website on Google Maps
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 1910.95(c)(1) · Noise |
Serious | $8,276 | $7,448 | Aug 7, 2025 | Final |
| Citation 1, item 2a 29 CFR 1910.212(a)(3)(ii) · Machine guarding |
Serious | $8,276 | $8,276 | Aug 7, 2025 | Final |
| Citation 1, item 2b 29 CFR 1910.215(a)(4) · Grinders and abrasive wheels |
Serious | $8,276 | $0 | Aug 7, 2025 | Final |
| Citation 2, item 1 29 CFR 1904.41(a)(1)(i) · Electronic submission of Employer Identification Number (EIN) and injury and illness records to OSHA |
Other-than-serious | $1,655 | $0 | Aug 7, 2025 | Final |
Inspection 343204293 OPENED JUN 5, 2018Closed
4701 Blalock, Houston, TX 77041 · All Other Plastics Product Manufacturing · OSHA's record · Phone and website on Google Maps
Incident on May 22, 2018: Employee strikes finger against conveyor blade and amputates
At 7:30 a.m. on May 22, 2018, an employee was clearing material from a conveyor that was stuck when his right index finger was struck by the machine's blade, amputating it. The employee was hospitalized.
| Citation and rule | Type | Proposed | Current | Issued | Status |
|---|---|---|---|---|---|
| Citation 1, item 1 29 CFR 1910.212(a)(3)(ii) · Machine guarding |
Serious | $9,054 | $4,527 | Jul 5, 2018 | Final |
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 Houston site logged 0 recordable injuries or illnesses among about 73 workers: 0.0 per 100 full-time workers, against a median of 2.1 for its industry.
| Site and year | Workers | Cases | Days-away cases | Rate | Industry median |
|---|---|---|---|---|---|
| SemaSys Houston Houston · 2025 | 73 | 0 | 0 | 0.0 | 2.1 |
Severe injury reports
Employers must report any work-related amputation, in-patient hospitalization or loss of an eye to OSHA within 24 hours. 1 report on file.
May 22, 2018, Houston: Amputation · amputations · finger(s), fingernail(s), n.e.c.
An employee replaced the tape on a part that was going through a guillotine saw cutter. Afterward, the part would not come through the machine properly. As she was checking on the part, the saw blade came down and amputated her right index finger. The saw cutter was guarded at the time.
The rules behind these citations
Current text from the Code of Federal Regulations. Some citations were issued under older wording.
29 CFR 1904.41 · Electronic submission of Employer Identification Number (EIN) and injury and illness records to OSHA
29 CFR 1904.41(a)(1)(i)
(a) Basic requirements—(1) Annual electronic submission of information from OSHA Form 300A Summary of Work-Related Injuries and Illnesses. (i) If your establishment had 20-249 employees at any time during the previous calendar year, and your establishment is classified in an industry listed in appendix A to subpart E of this part, then you must electronically submit information from OSHA Form 300A Summary of Work-Related Injuries and Illnesses to OSHA or OSHA's designee. You must submit the information once a year, no later than the date listed in paragraph (c) of this section of the year after the calendar year covered by the form.
29 CFR 1910.212 · Machine guarding
29 CFR 1910.212(a)(3)(ii)
(ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. The guarding device shall be in conformity with any appropriate standards therefor, or, in the absence of applicable specific standards, shall be so designed and constructed as to prevent the operator from having any part of his body in the danger zone during the operating cycle.
29 CFR 1910.215 · Grinders and abrasive wheels
29 CFR 1910.215(a)(4)
(4) Work rests. On offhand grinding machines, work rests shall be used to support the work. They shall be of rigid construction and designed to be adjustable to compensate for wheel wear. Work rests shall be kept adjusted closely to the wheel with a maximum opening of one-eighth inch to prevent the work from being jammed between the wheel and the rest, which may cause wheel breakage. The work rest shall be securely clamped after each adjustment. The adjustment shall not be made with the wheel in motion.
29 CFR 1910.95 · Noise
Other oil and gas field machinery and equipment manufacturing employers in Texas
- Weatherford Artificial Lift Systems, LLC Longview · 48 citations · $247,094
- Lindsayca, Inc. Houston · 1 citation · $7,150
- Apex Geotech Solutions dba Oci Drilltools Kilgore · 4 citations · $20,000
- Champion HI-Tech Manufacturing Inc Houston · 3 citations · $17,744
- Unicat Catalyst Technologies LLC Alvin · 13 citations · $43,259
- Innovex International, Inc. Houston · 4 citations · $22,698
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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.