Safety Incidents OSHA Severe Injury Reports · 2015–2025
5,191,871Inspections Most recent open 2026-07-30 Last loaded 2026-08-03

OSHA Inspection: RMC LONSTAR PLANT 201

Complaint inspection · Health discipline

On , OSHA opened a complaint health inspection of RMC LONSTAR PLANT 201 in 420 MARIPOSA ST., SAN FRANCISCO, CA 94107 (NAICS 000000). OSHA activity number 300886579.

What this inspection record means

OSHA opens inspections for many reasons: routine scheduling under a national or local emphasis program, an employee complaint or referral, or a follow-up after a reported injury. Opening or conducting an inspection is not itself an allegation or a finding that this employer broke any rule; any findings appear as the citations listed below, and citations can be contested, reduced, or withdrawn.

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Site address
420 MARIPOSA ST.
City
SAN FRANCISCO
State
CA
ZIP
94107
Inspection type
Complaint (B)
Scope
Partial (B)
Discipline
Health
Advance notice
No
Union status
Y
Opened
Closing conference
Case closed
Last modified
Data loaded
NAICS code
000000
SIC code (legacy)
1771
Employees
7
Ownership type
A

1 citation on file for this inspection.

461 C

Other-than-serious Gravity 01 1 instance 7 exposed
Issued
Nov 23, 1998
Abate by
Nov 27, 1998
Penalty
Initial $300 · Current $300

View RMC Lonstar Plant 201's full OSHA safety record →

This record is reproduced from the U.S. Department of Labor Open Data API (OSHA inspection dataset). The original IMIS detail view is available at OSHA's Establishment Search for activity number 300886579.

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