KOPPERS CO., INC. (OROVILLE PLANT)
MARYSVILLE-BAGGET ROAD, OROVILLE, CA, 95965
No open violations Compliance record — not a listed provider
Facility identity · canonical
- EPA Registry ID
- 110041969313
- RCRA Handler ID(s)
- CAD009112087
- Generator status
- Large Quantity Generator (LQG)
- County
- BUTTE
- EPA Region
- 09
- Active
- Yes
- NAICS
- 321114
- Coordinates
- 39.471677, -121.564779
Compliance summary · canonical · EPA source pulled Aug 11, 2026 · summary recalculated Aug 26, 2026
3-year compliance history Not in the compliance universe for any of the last 12 quarters
Not in universe In violation Significant non-compliance
- Significant non-complier
- No
- Last inspection
- Jan 12, 2000
- Inspections (5 yr)
- —
- Informal actions (5 yr)
- —
- Formal actions (5 yr)
- —
- Total penalties
- —
Permits & authorizations · canonical
| Program | Type | Status | Effective |
|---|---|---|---|
| RCRA | LQG | Not reported | Not reported |
Type is EPA's RCRA handler classification. Permit status and effective date
are not published in the RCRAInfo handler dataset.
Violations · canonical · 17 total, 0 open
6 distinct violation categories on record:
| Count | Code | Category | EPA description |
|---|---|---|---|
| 7 | 264.A | TSDF standards (permitted) | Standards for Owners and Operators of HW TSDs: General |
| 4 | 264.H | TSDF standards (permitted) | Standards for Owners and Operators of HW TSDs: Financial Requirements |
| 3 | 262.A | Generator standards | Standards Applicable to Generators of HW: General |
| 1 | 264.G | TSDF standards (permitted) | Standards for Owners and Operators of HW TSDs: Closure and Post-Closure |
| 1 | 265.F | TSDF standards (interim status) | Interim Status Standards for Owners and Operators of HW TSDs: Ground-Water Monitoring |
| 1 | 279.C | Used oil management | Standards for Used Oil: Generators |
Most recent 8 of 17:
| Determined | Category | Status | Agency |
|---|---|---|---|
| Jan 12, 2000 | Generator standards 262.A · Standards Applicable to Generators of HW: General | Resolved Jan 24, 2000 | S |
| Nov 16, 1998 | Generator standards 262.A · Standards Applicable to Generators of HW: General | Resolved Apr 21, 1999 | E |
| Nov 16, 1998 | TSDF standards (permitted) 264.A · Standards for Owners and Operators of HW TSDs: General | Resolved Apr 21, 1999 | E |
| Nov 16, 1998 | Used oil management 279.C · Standards for Used Oil: Generators | Resolved Apr 21, 1999 | E |
| Apr 19, 1995 | Generator standards 262.A · Standards Applicable to Generators of HW: General | Resolved Jan 12, 2000 | S |
| Apr 19, 1995 | TSDF standards (permitted) 264.A · Standards for Owners and Operators of HW TSDs: General | Resolved Jan 12, 2000 | S |
| Feb 11, 1993 | TSDF standards (permitted) 264.A · Standards for Owners and Operators of HW TSDs: General | Resolved Mar 23, 1993 | S |
| Jun 26, 1992 | TSDF standards (permitted) 264.A · Standards for Owners and Operators of HW TSDs: General | Resolved Mar 5, 1993 | S |
Inspection history · canonical · 18 total
| Date | Type | Agency | Outcome |
|---|---|---|---|
| Jan 12, 2000 | COMPLIANCE EVALUATION INSPECTION (CEI) | S | Violation found |
| Nov 16, 1998 | COMPLIANCE EVALUATION INSPECTION (CEI) | E | Violation found |
| Apr 18, 1995 | COMPLIANCE EVALUATION INSPECTION (CEI) | S | Violation found |
| Jan 19, 1993 | FINANCIAL RECORD REVIEW (FRR) | S | In compliance |
| Jan 6, 1993 | COMPLIANCE EVALUATION INSPECTION (CEI) | S | Violation found |
| May 29, 1992 | FINANCIAL RECORD REVIEW (FRR) | S | In compliance |
| May 13, 1992 | COMPLIANCE EVALUATION INSPECTION (CEI) | S | Violation found |
| Nov 22, 1991 | FINANCIAL RECORD REVIEW (FRR) | C | Violation found |
Showing 8 most recent of 18.
Related facilities near Oroville
Data sources
EPA ECHO — this facility's detailed report — facility, compliance summary, permits, evaluations & violations
RCRAInfo evaluation and violation records for this facility are integrated into the
ECHO report linked above — RCRAInfo's own public search doesn't offer a stable
per-facility link. General source: EPA ECHO, EPA RCRAInfo.
Compliance, permit, and location data come straight from EPA and can't be edited.
Contact info and description come from the business's claimed listing, if any.
This profile is not an official regulatory determination.
- EPA ECHO Exporter
- Source snapshot pulled Aug 11, 2026 · batch 20260811T113837Z
- EPA RCRAInfo (ECHO download)
- Source snapshot pulled Aug 11, 2026 · batch 20260811T113837Z
Two different dates can appear on this page, and both are correct but mean different
things: "Source snapshot pulled" above is when we last pulled that source's raw data
— this is the date to check for source currency. "Recalculated" on the compliance
summary is when we last recomputed that summary from the data on hand, which can
land on a later date than the source pull itself — a later recalculation date does
NOT mean the underlying source has data through that date.