Clean Water Act discharge permit · NPDES CAZ417021

ZYGO CORPORATION EXTREME PRECISION OPTICS, Richmond, CA: NPDES CAZ417021 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

ZYGO CORPORATION EXTREME PRECISION OPTICS, held by Zygo Corporation, holds NPDES permit CAZ417021. EPA’s file records it issued July 1, 2015 and expiring June 30, 2020.

ZYGO CORPORATION EXTREME PRECISION OPTICS, Richmond, California: Coverage under a general permit CAZ417021, held by Zygo Corporation; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued July 1, 2015, term to June 30, 2020, by CA Waterboards.

California holds 1,513 Industrial stormwater coverages of this permit type in EPA’s file; 3 were issued before CAZ417021.

Coverages issued nearest CAZ417021

July 1, 2015: CRYSTAL GEYSER WATER CO, Calistoga, CAZ409506, held by Crystal Geyser Water Co
July 1, 2015: CALIFORNIA GASKET AND RUBBER CORPORATION, Orange, CAZ409742, held by California Gasket and Rubber Corporation
July 1, 2015: WORLD OIL ENVIRONMENTAL SERVICES, Union City, CAZ410821, held by World Oil Environmental Services
July 1, 2015: AMR STRATOS MODESTO, Modesto, CAZ413028, held by American Medical Response West
July 1, 2015: COACHELLA SANITARY DIST, Coachella, CAZ415203, held by Coachella City
July 1, 2015: MOULTON NIGUEL WATER DISTRICT, Laguna Hills, CAZ417248, held by Moulton Niguel Water District
July 1, 2015: BRYMAN PIT, Oro Grande, CAZ419249, held by Senko Inc
July 1, 2015: EXEL ONTARIO DIST CENTER, Ontario, CAZ419438, held by Exel Inc
July 1, 2015: G AND J AIRCRAFT AND PRECISION, Ontario, CAZ419880, held by G and J Aircraft and Precision
July 1, 2015: ROLLING FRITO LAY SALES LP, Salinas, CAZ419918, held by Rolling Frito Lay Sales LP

ZYGO CORPORATION EXTREME PRECISION OPTICS among its neighbors

EPA’s permit file holds 12 discharge permits in the Pinole Creek-Frontal San Pablo Bay Estuaries subwatershed (HUC 180500020702), CAZ417021 among them. Its county holds 29, 2 of them major permits; CAZ417021 is a minor permit.

Other permits in the Pinole Creek-Frontal San Pablo Bay Estuaries subwatershed (HUC 180500020702)

ACTION METAL RECYCLING, Richmond: CAF001178, not classed
ACTION METAL RECYCLING, Richmond: CAF010064, not classed
DEAL AUTO & TRUCKING WRECKING, Richmond: CAF001173, not classed
GENERAL PETROLEUM RICHMOND, Richmond: CAZ401661, minor permit, permit term to June 30, 2020
LYTTON SAN PABLO CASINO EXPANSION, San Pablo: CAR10I043, minor permit, permit term to February 16, 2027
LYTTON SAN PABLO CASINO EXPANSION, San Pablo: CAR10I04S, minor permit, permit term to February 16, 2027
MATHESON TRI GAS RICHMOND, Richmond: CAZ476257, minor permit, permit term to June 30, 2020
RODEO SANITARY DISTRICT, Rodeo: CAL037826, minor permit, permit term to December 31, 2025
VEOLIA ES TECHNICAL SOLUTIONS LLC, Richmond: CAZ181926, minor permit, permit term to June 30, 2020
W CONTRA COSTA SD, San Pablo: CAU000482, not classed

What the register holds for ZYGO CORPORATION EXTREME PRECISION OPTICS: its NPDES ID, its permit type and status, its dates, its address in Richmond, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAZ417021.

Identity

Facility as filed	ZYGO CORPORATION EXTREME PRECISION OPTICS
Permittee as filed	Zygo Corporation
NPDES ID	CAZ417021
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	July 1, 2015
Expiration date	June 30, 2020
Issuing agency	CA Waterboards
Address	Richmond, CA 94806
Subwatershed	Pinole Creek-Frontal San Pablo Bay Estuaries (HUC 180500020702)

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 CAZ417021.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES CAZ417021.

Inspections

EPA’s inspection file holds no inspection for NPDES CAZ417021.

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 CAZ417021.

Watch this permit

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Nearby on the register

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

The Clean Water Act discharge permit filed as ZYGO CORPORATION EXTREME PRECISION OPTICS, NPDES ID CAZ417021, is one of 11 storm water industrial permits on EPA's register in Contra Costa County, and 0.0% of the 7 such permits in that county, this one included, were issued earlier than it. Among the 11 storm water industrial permits in Contra Costa County, 9.1% have a violation on file, while this permit has none of the recorded numeric-limit or effluent exceedance pollutants. The permit also falls within the 12 NPDES permits in the Pinole Creek-Frontal San Pablo Bay Estuaries subwatershed, this one included.