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KEYSTONE ENGINEERING CO

4401 DONALD DOUGLAS DRIVE, LONG BEACH, CA, 90808
No open violations Compliance record — not a listed vendor
Compliance record, not a business listing. This facility is a hazardous-waste generator (it produces regulated waste as part of an unrelated business), not a waste-management vendor — it isn't eligible to be claimed or listed. Data below is shown for compliance transparency, sourced from EPA ECHO & RCRAInfo.

Facility identity · canonical

EPA Registry ID
110000782528
RCRA Handler ID(s)
CAD044433613
Generator status
Small Quantity Generator (SQG)
County
LOS ANGELES
EPA Region
09
Active
Yes
NAICS
336415
325998
Coordinates
33.81887, -118.14182
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
Aug 25, 1993
Inspections (5 yr)
—
Informal actions (5 yr)
—
Formal actions (5 yr)
—
Total penalties
—
Permits & authorizations · canonical
ProgramTypeStatusEffective
RCRA SQG 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 · 1 total, 0 open
All violations:
DeterminedCategoryStatusAgency
Jan 7, 1993
Generator standards
262.A · Standards Applicable to Generators of HW: General
 Resolved Apr 12, 1993 S
Inspection history · canonical · 6 total
DateTypeAgencyOutcome
Aug 25, 1993 COMPLIANCE EVALUATION INSPECTION (CEI) B In compliance
Nov 25, 1992 COMPLIANCE EVALUATION INSPECTION (CEI) S Violation found
Feb 24, 1987 FINANCIAL RECORD REVIEW (FRR) S In compliance
Nov 17, 1986 FINANCIAL RECORD REVIEW (FRR) S In compliance
Aug 20, 1985 FINANCIAL RECORD REVIEW (FRR) S In compliance
Jan 22, 1985 FINANCIAL RECORD REVIEW (FRR) S In compliance

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See all hazardous-waste facilities in Long Beach →

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.