Hazardous waste · violations by year
Hazardous waste violations in Contra Costa County, California in 2025
- 18Handlers cited
- 24Violations on record
- 25Handlers cited in 2024
- 7thAmong California counties that year
Contra Costa County, California has 18 hazardous waste handlers with at least one violation on record during 2025, across 24 separate violations. That compares with 25 in 2024. It is the 7th largest of the 17 California counties with three or more handlers cited that year. Each row below carries the date the violation was recorded, the agency that recorded it and the kind of violation it was.
Other years
Comparable counties in California, 2025
- Santa Clara County 19
- San Bernardino County 23
- Riverside County 13
- Ventura County 13
- San Joaquin County 11
- San Mateo County 10
- Sacramento County 9
- Fresno County 6
Violations recorded in 2025
| Date | Handler | Where | Kind | Recorded by |
|---|---|---|---|---|
| 2025-11-19 | EISEN ENVIRONMENTAL & CONSTRUCTION SERVICES | Martinez | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | S |
| 2025-09-26 | BENCHMARK CONCORD 4021 | Concord | Standards Applicable to Generators of HW: General | S |
| 2025-09-16 | BENCHMARK ELECTRONICS - DBA: PRECISION TECHNOLOGIES | Concord | Standards Applicable to Generators of HW: General | S |
| 2025-08-26 | BENCHMARK CONCORD 4021 | Concord | Standards Applicable to Generators of HW: General | S |
| 2025-08-19 | AIR LIQUIDE LARGE INDUSTRIES US | Rodeo | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-08-19 | AIR LIQUIDE LARGE INDUSTRIES US | Rodeo | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-08-14 | K2 PURE SOLUTIONS | Pittsburg | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-08-05 | SHELL CHEM LP-MARTINEZ CATALYST PLANT | Martinez | Standards Applicable to Generators of HW: General | S |
| 2025-07-15 | HENKEL US OPERATIONS CORPORATION | Bay Point | Standards Applicable to Generators of HW: General | S |
| 2025-06-18 | CHEMOURS OAKLEY | Oakley | EPA Administered Permit Programs: the HW Permit Program Permit Conditions | S |
| 2025-05-28 | DHINDSA TRANS INC | Hercules | Standards Applicable to Transporters of HW: Compliance with the Manifest System and Recordkeeping | S |
| 2025-05-16 | AMERESCO KELLER CANYON LLC | Pittsburg | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-04-24 | PHILLIPS 66 COMPANY - RODEO RENEWABLE ENERGY COMPLEX | Rodeo | Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards | S |
| 2025-04-24 | PHILLIPS 66 COMPANY - RODEO RENEWABLE ENERGY COMPLEX | Rodeo | Standards Applicable to Generators of HW: General | S |
| 2025-04-24 | PHILLIPS 66 COMPANY - RODEO RENEWABLE ENERGY COMPLEX | Rodeo | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | S |
| 2025-04-24 | PHILLIPS 66 COMPANY - RODEO RENEWABLE ENERGY COMPLEX | Rodeo | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | S |
| 2025-03-18 | C&H SUGAR COMPANY, INC. | Crockett | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-02-25 | IT CORPORATION - VINE HILL COMPLEX | Martinez | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | S |
| 2025-02-12 | CONTRA COSTA COUNTY | Martinez | Standards Applicable to Generators of HW: General | S |
| 2025-02-12 | CONTRA COSTA COUNTY | Martinez | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-01-31 | QUALAWASH HOLDINGS, LLC | Richmond | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-01-21 | MARTINEZ REFINING COMPANY LLC | Martinez | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | S |
| 2025-01-17 | MECS, INC. - THE AVON PLANT | Martinez | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | S |
| 2025-01-14 | PERFORMANCE ABATEMENT SERVICES, INC. | Benicia | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | S |
Figures from EPA’s RCRAInfo download.