KOPPERS COMPANY INC
12200 AIRPORT DRIVE, ONTARIO, CA, 91761
EPA public record No open violations
Part of KOPPERS COMPANY INC — 4 EPA-regulated sites nationwide
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Facility identity · canonical
- EPA Registry ID
- 110000610198
- RCRA Handler ID(s)
- CAT000617324
- Generator status
- Small Quantity Generator (SQG)
- County
- SAN BERNARDINO
- EPA Region
- 09
- Active
- Yes
- NAICS
- 321114
- Coordinates
- 34.063492, -117.540587
Compliance summary · canonical · as of Aug 11, 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
- Dec 15, 1988
- Inspections (5 yr)
- —
- Informal actions (5 yr)
- —
- Formal actions (5 yr)
- —
- Total penalties
- —
Permits & authorizations · canonical
| Program | Type | Status | Effective |
|---|---|---|---|
| RCRA | SQG | Not reported | Not reported |
| RCRA | Transporter | 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 · 4 total, 0 open
3 distinct violation categories on record:
| Count | Code | Category | EPA description |
|---|---|---|---|
| 2 | 264.A | TSDF standards (permitted) | Standards for Owners and Operators of HW TSDs: General |
| 1 | 264.H | TSDF standards (permitted) | Standards for Owners and Operators of HW TSDs: Financial Requirements |
| 1 | 268.A | Land disposal restrictions | Land Disposal Restrictions: General |
All violations:
| Determined | Category | Status | Agency |
|---|---|---|---|
| Dec 15, 1988 | TSDF standards (permitted) 264.A · Standards for Owners and Operators of HW TSDs: General | Resolved Dec 15, 1988 | S |
| Dec 15, 1988 | Land disposal restrictions 268.A · Land Disposal Restrictions: General | Resolved Dec 15, 1988 | S |
| Dec 1, 1988 | TSDF standards (permitted) 264.H · Standards for Owners and Operators of HW TSDs: Financial Requirements | Resolved Dec 15, 1988 | S |
| Aug 5, 1987 | TSDF standards (permitted) 264.A · Standards for Owners and Operators of HW TSDs: General | Resolved Dec 15, 1988 | S |
Inspection history · canonical · 5 total
| Date | Type | Agency | Outcome |
|---|---|---|---|
| Dec 15, 1988 | COMPLIANCE EVALUATION INSPECTION (CEI) | S | Violation found |
| Dec 1, 1988 | FINANCIAL RECORD REVIEW (FRR) | S | Violation found |
| Aug 5, 1987 | COMPLIANCE EVALUATION INSPECTION (CEI) | E | In compliance |
| Aug 5, 1987 | FINANCIAL RECORD REVIEW (FRR) | S | Violation found |
| Aug 5, 1987 | COMPLIANCE EVALUATION INSPECTION (CEI) | S | In compliance |
Related facilities near Ontario
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.