Hazardous waste · inspections by year
Large quantity generators inspected in Contra Costa County, California in 2026
- 25Handlers inspected
- 36Inspections on record
- 41Handlers inspected in 2025
- 6thAmong California counties that year
Contra Costa County, California has 25 hazardous waste handlers with at least one inspection on record during 2026, across 36 separate inspections. That compares with 41 in 2025. It is the 6th largest of the 29 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
Comparable counties in California, 2026
- Alameda County 26
- San Bernardino County 30
- Santa Clara County 30
- San Diego County 20
- San Mateo County 20
- Riverside County 17
- Kern County 14
- Ventura County 13
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 |
| 2026-06-11 | MARTINEZ REFINING COMPANY LLC | Martinez | 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 |
| 2026-03-20 | EMCORE CORPORATION | Concord | COMPLIANCE EVALUATION INSPECTION | S |
| 2026-03-10 | WEST COUNTY LANDFILL INC | Richmond | FINANCIAL RECORD REVIEW | 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 |
| 2026-02-03 | KAISER PERMANENTE - WALNUT CREEK HOSPITAL | Walnut Creek | 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.