Establishment profile
CORNERSTONE AGGREGATES, INC.
332 ELKELTON PLACE, SPRING VALLEY, CA, 91977
327390 — Other Concrete Product Manufacturing
Summary
CORNERSTONE AGGREGATES, INC. has accumulated 3 OSHA violations across 1 inspection over 1 year of recorded history, with $21,230 in total assessed penalties.
The establishment sits in the 49th percentile for violations within its industry-state peer group of 446 employers. The most recent enforcement activity was recorded 1 year ago.
Federal records were found in 1 of 15 sources. Sources without matching records returned empty for this establishment.
Agency coverage
CORNERSTONE AGGREGATES, INC. appears in OSHA workplace safety record only. No matching records were found in WHD wage enforcement, MSHA mine safety, EPA environmental compliance, NLRB labor relations, OFLC visa and labor certification, FMCSA motor carrier registration, SAM.gov federal debarment, CMS nursing home enforcement, UVA Corporate Prosecution Registry, CPSC product recalls, or NHTSA vehicle recalls. Single-agency enforcement records typically indicate either a discrete incident-based inspection or a low-risk operational profile.
OSHA workplace safety
100% of inspections at this establishment produced violations,
Peer comparison
Below average violations in NAICS 3273 within CA. Peer group: 446 employers. This establishment has 3 OSHA violations; peer median is 3.
Safety self-report (OSHA 300A)
No self-reported injury rates filed with OSHA's Injury Tracking Application for CORNERSTONE AGGREGATES, INC.. Verify directly with OSHA Injury Tracking Application →
Industry benchmark
BLS rates reflect industry-wide averages. Self-reported figures come from OSHA’s Injury Tracking Application; absence of self-reported data does not necessarily indicate non-compliance — many establishments fall below the ITA reporting threshold.
Inspection breakdown
Complaint- and accident-triggered inspections are stronger risk signals than routine planned inspections.
OSHA severe injury reports
No severe injury reports (hospitalization, amputation, or loss of an eye) on file under 29 CFR 1904.39 for CORNERSTONE AGGREGATES, INC.. Verify directly with Occupational Safety and Health Administration →
Activity timeline
Most recent federal enforcement activity recorded 1 year ago. Data on this page is refreshed weekly.
Wage & Hour Division (WHD)
No WHD wage, overtime, or child-labor enforcement cases on file for CORNERSTONE AGGREGATES, INC.. Verify directly with Wage and Hour Division →
Mine safety (MSHA)
No MSHA mine safety violations on file for CORNERSTONE AGGREGATES, INC.. Verify directly with Mine Safety and Health Administration →
Labor relations (NLRB)
No NLRB unfair labor practice charges or union representation cases on file for CORNERSTONE AGGREGATES, INC.. Verify directly with National Labor Relations Board →
Visa & labor certification (OFLC)
No H-1B, H-2A, or H-2B labor condition applications on file for CORNERSTONE AGGREGATES, INC.. Verify directly with Office of Foreign Labor Certification →
Environmental compliance (EPA)
No EPA inspections or formal enforcement actions on file for CORNERSTONE AGGREGATES, INC.. Verify directly with Environmental Protection Agency →
Federal criminal prosecution record
No federal criminal prosecutions, plea agreements, or deferred-prosecution agreements on file for CORNERSTONE AGGREGATES, INC.. Verify directly with UVA Corporate Prosecution Registry →
Inspection history
| Date | Trigger | Violations | Serious | Penalty | |
|---|---|---|---|---|---|
| 2025-03-17 | Accident | 3 | 2 | $21,230 |
Source: OSHA IMIS. Citation amounts reflect initially assessed penalties; final amounts after appeal may differ.
In the news
Other employers in this industry and state
Other employers in other concrete product manufacturing within CA, ordered by federal enforcement volume:
- HOLLIDAY ROCK CO., INC.PALMDALE — 3 federal enforcement records
- OLDCASTLE PRECAST, INC.ONTARIO — 2 federal enforcement records
- CLARK PACIFIC CORPWEST SACRAMENTO — 2 federal enforcement records
- KTI INC DBA RIALTO CONCRETE PRODUCTSRIALTO — 2 federal enforcement records
- SANNIPOLI CORPORATIONMENIFEE — 2 federal enforcement records
- PARAMOUNT PRE-CAST DESIGN INCSUN VALLEY — 2 federal enforcement records
- JENSEN ENTERPRISES INC DBA JENSEN PRECASTFONTANA — 2 federal enforcement records
- WALTERS & WOLF PRECASTFREMONT — 2 federal enforcement records
- JENSEN PRECASTLOCKEFORD — 2 federal enforcement records
- FLYING TURTLE CAST CONCRETEMODESTO — 2 federal enforcement records
Related searches
- Other Concrete Product ManufacturingAll employers in this industry
- Employers in CAState-wide enforcement data
- Other Concrete Product in CAIndustry × state cross-filter
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Contact sales →About this data
This profile aggregates federal enforcement records on CORNERSTONE AGGREGATES, INC. from every major federal compliance and enforcement source plus the UVA Corporate Prosecution Registry. OSHA workplace safety inspections, WHD wage cases, MSHA mine safety, EPA environmental enforcement, NLRB labor relations, OFLC visa/labor certification, FMCSA motor carrier registration, SAM.gov debarments, CMS nursing-home records, BLS industry safety benchmarks, OSHA ITA self-reported injury rates, SEC enforcement and financial disclosures, CPSC and NHTSA recalls.
Establishments are matched across agencies using normalized employer name, state, and ZIP code.
OSHA citations typically appear 3–8 months after the inspection, so very recent enforcement actions may not yet be reflected. Profiles may be incomplete if the establishment operates under multiple legal names or files under variations our entity-matching rules don’t yet cover. To report a missing record or correction, email corrections@fastdol.com.
Frequently asked
- What is CORNERSTONE AGGREGATES, INC.'s OSHA violation history?
- CORNERSTONE AGGREGATES, INC. has 1 OSHA inspection on record with 3 violations and $21,230 in total penalties.
- How does CORNERSTONE AGGREGATES, INC.'s safety record compare to its industry?
- CORNERSTONE AGGREGATES, INC. operates in the other concrete product manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 4.9.