Hazardous waste · inspections by year
Hazardous waste inspections in Contra Costa County, California in 2026
- 31Handlers inspected
- 42Inspections on record
- 53Handlers inspected in 2025
- 5thAmong California counties that year
Contra Costa County, California has 31 hazardous waste handlers with at least one inspection on record during 2026, across 42 separate inspections. That compares with 53 in 2025. It is the 5th largest of the 24 California counties with three or more handlers inspected that year. Each row below carries the date the inspection was recorded, the agency that recorded it and the kind of inspection it was.
Other years
By what a handler generates, in 2026
- Large quantity generators inspected in Contra Costa County, California 25
- Small quantity generators inspected in Contra Costa County, California 5
Comparable counties in California, 2026
- Alameda County 31
- Fresno County 9
- Imperial County 3
- Kern County 24
- Los Angeles County 166
- Marin County 3
- Monterey County 7
- Orange County 81
- Placer County 4
- Riverside County 24
- Sacramento County 11
- San Bernardino County 53
- San Diego County 26
- San Joaquin County 11
- San Mateo County 22
- Santa Barbara County 8
- Santa Clara County 35
- Santa Cruz County 7
- Solano County 7
- Stanislaus County 6
Inspections recorded in 2026
| Date | Handler | Where | Kind | Recorded by |
|---|---|---|---|---|
| 2026-07-28 | U.S. STEEL PROPERTY HOLDINGS, LLC | Pittsburg | FOCUSED COMPLIANCE INSPECTION | S |
| 2026-07-28 | U.S. STEEL PROPERTY HOLDINGS, LLC | Pittsburg | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-07-23 | MARTINEZ RENEWABLES | Pacheco | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-07-21 | CVS PHARMACY #9511 | Brentwood | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-07-21 | PG&E LOS MEDANOS COMPRESSOR STATION | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-22 | CVS PHARMACY # 9348 | San Ramon | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-18 | CHEMTRADE LOGISTICS WEST US LLC | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-16 | LIQUID GOLD OIL CORP. | Richmond | FINANCIAL RECORD REVIEW | S |
| 2026-06-11 | MARTINEZ REFINING COMPANY LLC | Martinez | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-11 | BENCHMARK ELECTRONICS - DBA: PRECISION TECHNOLOGIES | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-09 | AMAZON.COM SERVICES LLC - DSF8 | San Pablo | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-03 | MECS, INC. - THE AVON PLANT | Martinez | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-03 | KORTICK MANUFACTURING LLC | Pittsburg | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-06-02 | ATTALON | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-29 | SHELL CATALYSTS & TECHNOLOGIES | Pittsburg | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-12 | KINDER MORGAN LIQUIDS TERMINALS, LLC | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-11 | CORTEVA AGRISCIENCE LLC | Pittsburg | FOCUSED COMPLIANCE INSPECTION | S |
| 2026-05-06 | BAY STANDING INC | Brentwood | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-05-01 | EMCORE CORPORATION | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-04-28 | KORTICK MANUFACTURING LLC | Pittsburg | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-04-24 | MECS, INC. - THE AVON PLANT | Martinez | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-04-15 | U.S. STEEL PROPERTY HOLDINGS, LLC | Pittsburg | FINANCIAL RECORD REVIEW | S |
| 2026-03-30 | TESORO MARTINEZ REFINERY | Martinez (E Of) | FOCUSED COMPLIANCE INSPECTION | S |
| 2026-03-20 | EMCORE CORPORATION | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-03-10 | WEST COUNTY LANDFILL INC | Richmond | FINANCIAL RECORD REVIEW | S |
| 2026-03-09 | PPG PAINTS | Concord | FACILITY SELF DISCLOSURE | S |
| 2026-03-03 | CORTEVA AGRISCIENCE LLC | Pittsburg | FINANCIAL RECORD REVIEW | S |
| 2026-02-25 | CORTEVA AGRISCIENCE LLC | Pittsburg | FOCUSED COMPLIANCE INSPECTION | S |
| 2026-02-24 | SHELL CATALYSTS & TECHNOLOGIES | Pittsburg | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-19 | SFPP LP (CONCORD STATION) | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-13 | KAISER PERMANENTE SAN RAMON MEDICAL OFFICE BUILDING (MOB) | San Ramon | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-12 | EMCORE CORPORATION | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-05 | WEST COUNTY LANDFILL INC | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-04 | KAISER PERMANENTE RICHMOND MEDICAL OFFICES 1 | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-04 | CONTRA COSTA COUNTY | Martinez | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-03 | KAISER PERMANENTE - WALNUT CREEK HOSPITAL | Walnut Creek | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-02-03 | DILLARD ENVIRONMENTAL SERVICES | Byron | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-01-23 | CVS PHARMACY #9545 | Walnut Creek | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-01-21 | PHILLIPS 66 COMPANY - RODEO RENEWABLE ENERGY COMPLEX | Rodeo | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-01-21 | U.S. STEEL PROPERTY HOLDINGS, LLC | Pittsburg | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-01-08 | IMTT-RICHMOND-CA | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-01-07 | BIO-RAD LABORATORIES | Richmond | COMPLIANCE EVALUATION INSPECTION | S |
Figures from EPA’s RCRAInfo download.