Clean Water Act discharge permit · NPDES CAZ490239
BOMAR MACHINE, Diamond Bar, CA: NPDES CAZ490239 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
BOMAR MACHINE, held by Bomar Machine, holds NPDES permit CAZ490239. EPA’s file records it issued March 9, 2018 and expiring June 30, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | BOMAR MACHINE |
|---|---|
| Permittee as filed | Bomar Machine |
| NPDES ID | CAZ490239 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | March 9, 2018 |
| Expiration date | June 30, 2020 |
| Issuing agency | CA Waterboards |
| Address | Diamond Bar, CA 91789 |
| Subwatershed | Upper San Jose Creek (HUC 180701060501) |
| Other EPA IDs (FRS) | RCRA handler CAL000412890 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES CAZ490239.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 2, 2021 | WW Storm Water Non-Construction - CWA §308 Failure to submit required permit application info | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID CAZ490239 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.