Hazardous waste handler · EPA ID CA0000010835
PENTAGON TECHNOLOGIES INC., Hayward, CA: hazardous-waste inspections, violations, penalties
- 9Inspections on file
- 13Violations on file
- 2Formal actions
- None on fileFinal penalties
Counts cover every year in the register file; the lists below are the dated events since 2017. The most recent inspection on file is dated August 13, 2026.
Identity
| Name as filed | PENTAGON TECHNOLOGIES INC. |
|---|---|
| EPA ID | CA0000010835 |
| Address | 21031 ALEXANDER COURT, Hayward, CA 94545 |
| County | Alameda |
| Generator status | Large quantity generator |
| Industry | Fabricated metal product manufacturing (NAICS 332813) |
| Most cited rule | Standards for generators (40 CFR 262) |
Cited to rcra_downloads.zip/RCRA_FACILITIES.csv.
Inspections since 2017
| Date | Inspection | By | Violation found |
|---|---|---|---|
| August 13, 2026 | COMPLIANCE EVALUATION INSPECTION | State | Yes |
| March 10, 2026 | COMPLIANCE EVALUATION INSPECTION | State | Yes |
| October 28, 2025 | COMPLIANCE EVALUATION INSPECTION | State | Yes |
| October 19, 2023 | COMPLIANCE EVALUATION INSPECTION | State | Yes |
Cited to rcra_downloads.zip/RCRA_EVALUATIONS.csv.
Violations since 2017
| Determined | Rule | What the register says | By | Returned to compliance |
|---|---|---|---|---|
| August 13, 2026 | 262.A | Standards Applicable to Generators of HW: General | State | Not on file |
| August 13, 2026 | 262.C | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | State | Not on file |
| March 10, 2026 | 262.A | Standards Applicable to Generators of HW: General | State | Not on file |
| March 10, 2026 | 262.C | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | State | Not on file |
| March 10, 2026 | 262.D | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | State | Not on file |
| October 28, 2025 | XXS | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | State | October 28, 2025 |
| October 28, 2025 | XXS | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | State | November 5, 2025 |
| October 28, 2025 | XXS | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | State | February 1, 2026 |
| October 26, 2023 | 262.A | Standards Applicable to Generators of HW: General | State | December 4, 2023 |
| October 26, 2023 | 262.C | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | State | December 4, 2024 |
Cited to rcra_downloads.zip/RCRA_VIOLATIONS.csv.
Enforcement and penalties since 2017
| Date | Action | Formal | By | Penalty |
|---|---|---|---|---|
| November 25, 2025 | INSPECTION REPORT W/VIOLATIONS (MAILED DATE) | Yes | State | |
| October 28, 2025 | WRITTEN INFORMAL | No | State |
Cited to rcra_downloads.zip/RCRA_ENFORCEMENTS.csv.
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Nearby on the register
- Hazardous waste handlers in Hayward
- Hazardous waste handlers in Alameda County
- Hazardous waste handlers in California
Figures from EPA’s RCRAInfo download, loaded September 15, 2026.