Clean Water Act discharge permit · NPDES CAZ473234

CONNEMARA CONVERTING, Ontario, CA: NPDES CAZ473234 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

CONNEMARA CONVERTING, held by CONNEMARA CONVERTING WEST, holds NPDES permit CAZ473234. EPA’s file records it issued June 8, 2016 and expiring June 30, 2020.

CONNEMARA CONVERTING, Ontario, California: Coverage under a general permit CAZ473234, held by CONNEMARA CONVERTING WEST; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued June 8, 2016, term to June 30, 2020, by CA Waterboards.

California holds 1,513 Industrial stormwater coverages of this permit type in EPA’s file; 687 were issued before CAZ473234.

Coverages issued nearest CAZ473234

May 31, 2016: EURO N DOMESTIC AUTO DISMANTLING, Bakersfield, CAZ473248, held by Euro n domestic auto dismantling
May 31, 2016: GRANITE CONSTRUCTION LITTLEROCK, Littlerock, CAZ473335, held by Granite Construction Littlerock
May 31, 2016: GRANITE CONSTRUCTION GARDNER FACILITY, Buellton, CAZ473338, held by Granite Construction Gardner Facility
June 3, 2016: INNOVION CORP, San Jose, CAZ184229, held by Innovion Corp
June 7, 2016: SOUTH COAST CIRCUITS LLC DBA SUMMIT INTERCONNECT, Santa Ana, CAZ473223, held by South Coast Circuits Inc
June 9, 2016: ENVIROKINETICS INC, Ontario, CAZ473512, held by EnviroKinetics Inc
June 14, 2016: RYAN PRESS, Buena Park, CAZ473103, held by Ryan Press
June 14, 2016: ROYAL RECYCLING CENTER INCORPORATED, Modesto, CAZ473651, held by Royal Recycling Center Incorporated
June 16, 2016: SUPER STORE INDUSTRIES, Lathrop, CAZ473924, held by Yosemite Express Co
June 24, 2016: LOS OSOS WATER RECYCLING FACILITY, Los Osos, CAZ472151, held by San Luis Obispo County Public Works1

CONNEMARA CONVERTING among its neighbors

EPA’s permit file holds 52 discharge permits in the East Etiwanda Creek-Santa Ana River subwatershed (HUC 180702030804), CAZ473234 among them.

Other permits in the East Etiwanda Creek-Santa Ana River subwatershed (HUC 180702030804)

ALLEN DISTRIBUTION, Ontario: CAZ507197, minor permit, permit term to June 30, 2020
ALUMINUM DIE CASTING CO INC, Mira Loma: CAZ210846, minor permit, permit term to June 30, 2020
AMERICAN FASTENERS CO, Mira Loma: CAZ472005, minor permit, permit term to June 30, 2020
AMERICAN SECURITY PRODUCTS CO, Fontana: CAZ213130, minor permit, permit term to June 30, 2020
AMR RIVERSIDE, Riverside: CAZ288914, minor permit, permit term to June 30, 2020
APOLLO WOOD RECOVERY INC, Fontana: CAF010096, not classed
BISHAMON, Ontario: CAZ478721, minor permit, permit term to June 30, 2020
CALIFORNIA STEEL INDUSTRIES, FONTANA, Fontana: CA0105449, minor permit, discharging to SANTA ANA RIVER, permit term to November 1, 2009
CITRUS ALLIED ESSENCES INC, Corona: CAZ288982, minor permit, permit term to June 30, 2020
CITY OF RIALTO, Rialto: CAF001508, not classed

What the register holds for CONNEMARA CONVERTING: its NPDES ID, its permit type and status, its dates, its address in Ontario, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAZ473234.

Identity

Facility as filed	CONNEMARA CONVERTING
Permittee as filed	CONNEMARA CONVERTING WEST
NPDES ID	CAZ473234
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	June 8, 2016
Expiration date	June 30, 2020
Issuing agency	CA Waterboards
Address	Ontario, CA 91761
Subwatershed	East Etiwanda Creek-Santa Ana River (HUC 180702030804)

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 CAZ473234.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES CAZ473234.

Inspections

EPA’s inspection file holds no inspection for NPDES CAZ473234.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES CAZ473234.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, CAZ473234.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

The CONNEMARA CONVERTING WEST storm water industrial permit (NPDES ID CAZ473234, Ontario, California) is one of 38 storm water industrial permits in Ontario on EPA's NPDES register, and 22.2% of the 36 such permits in the city, this one included, carry an earlier issue date. It also sits among 52 NPDES permits in the East Etiwanda Creek-Santa Ana River subwatershed, this one included, and records no pollutants under a numeric limit and no pollutants with an effluent exceedance.