Robertson's Ready Mix Ltd, El Cajon Quarry (San Diego County, CA): MSHA citation under 56.12004 (2026-06-30)
Robertson's Ready Mix Ltd (California): MSHA citation under 56.12004 (2026-06-30). Its proposed penalty of $1,037 is above the median of $165 (89th percentile). Dated 128 days ago, it serves as a historical benchmark. Score 40/100. As of 2026-11-04, from US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only.
Data as of · Compiled by Zalwin from US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only
proposed penalty: $1,037 · 89th percentile of 24,451 MshaMinePulse records · 6.3x the median
Free preview: all 13 published fields of this record are shown below. Locked: 499 related CA MshaMinePulse records and the 5-column CSV export.
| Field | Value |
|---|---|
| Company | Robertson's Ready Mix Ltd |
| Mine | El Cajon Quarry (ID 0400133) |
| Location | San Diego County, CA |
| Commodity | Crushed, Broken Granite |
| Mine type | Surface |
| Employees | 5 |
| Issued | 2026-06-30 |
| Action | Citation |
| Standard | 56.12004 |
| Significant & substantial | Yes |
| Negligence | Low |
| Proposed penalty | $1,037 |
| Contested | No |
| proposed penalty percentile | 89th of 24,451 (median $165, 6.3x median) |
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- Source agency: US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only
- Record date: 2026-06-30
- Data refreshed: 2026-11-04
- Refunds on request within 14 days
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LIVE PUBLIC DATA Source: US DOL Mine Safety and Health Administration (MSHA) Open Government Data, company violators only · Last refreshed: Wed, 04 Nov 2026 01:31:23 GMT
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Peer benchmark and outreach value: Robertson's Ready Mix Ltd and 648 California peers
- California MshaMinePulse records like this one: 648
- Robertson's Ready Mix Ltd's proposed penalty: 89th percentile of 24,451 records
- Timing: Low: older than 30 days
- Estimated pipeline if you contact every California peer: $129,600 (peers × rate × deal size; an estimate from your assumptions, not a forecast)
40 / 100 Safety Need Score
- Significant and substantial (S&S).
What is the MshaMinePulse record for Robertson's Ready Mix Ltd in California?
MSHA issued Robertson's Ready Mix Ltd a citation under 56.12004 at El Cajon Quarry (CA) on 2026-06-30.
How does Robertson's Ready Mix Ltd compare to other California MshaMinePulse records?
Its proposed penalty of $1,037 sits in the upper half (89th percentile) of 24,451 records; the median is $165. It is 128 days old; check the official source for later updates before acting.
Robertson's Ready Mix Ltd vs. top 3 peers
| Organization | Location | Amount | Percentile | Record date |
|---|---|---|---|---|
| Robertson's Ready Mix Ltd | CA | 1,037 | 89th | 2026-06-30 |
| Goodfellow Corporation | CA | 2,187 | 95th | 2026-06-02 |
| CEMEX Construction Materials Pacific, LLC | CA | 5,277 | 99th | 2026-05-13 |
| MP Mine Operations, LLC. | CA | 7,084 | 99th | 2026-07-19 |
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Data comes from MSHA Open Government Data files, which MSHA updates weekly; citations can appear days to weeks after issue, and proposed penalties are often blank until assessed months later. Citations can be modified, vacated or contested; confirm on the MSHA Mine Data Retrieval System. Company violators only; individual agents are excluded. Not a consumer report and may not be used for FCRA purposes. Informational only; not legal or safety advice.