Clean Water Act discharge permit · NPDES IDR053137

PHOTRONICS, INC. NANOFAB, Boise, ID: NPDES IDR053137 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
22Pollutants under a numeric limit
0Pollutants with an effluent exceedance

PHOTRONICS, INC. NANOFAB, held by PHOTRONICS, INC., holds NPDES permit IDR053137, which discharges to Fivemile, Eightmile, And Ninemile Creeks - 1st And. EPA’s file records it issued June 17, 2021 and expiring February 28, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	PHOTRONICS, INC. NANOFAB
Permittee as filed	PHOTRONICS, INC.
NPDES ID	IDR053137
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 17, 2021
Expiration date	February 28, 2026
Issuing agency	U.S. EPA
Address	Boise, ID 83716
Receiving water	Fivemile, Eightmile, and Ninemile Creeks - 1st and
Subwatershed	Fivemile Creek (HUC 170501140202)
SIC	3674 – Semiconductors And Related Devices
Other EPA IDs (FRS)	RCRA handler IDR000202978

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

22Pollutants on file
22Under a numeric limit
22With a violation of any kind
0With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind
Phosphorus, total [as P]	4	20
Solids, total suspended	2	11
pH	2	10
E. coli, MTEC-MF	1	6
Chemical Oxygen Demand [COD]	1	5
E. coli	1	3
Acenaphthylene	1	2
Acenaphthene	1	2
Anthracene	1	2
Benzo[b]fluoranthene	1	2
Benzo[k]fluoranthene	1	2
Benzo[a]pyrene	1	2
Chrysene	1	2
Fluoranthene	1	2
Fluorene	1	2
Indeno[1,2,3-cd]pyrene	1	2
Phenanthrene	1	2
Pyrene	1	2
Benzo[ghi]perylene	1	2
Benzo[a]anthracene	1	2
Dibenz[a,h]anthracene	1	2
Naphthalene	1	2

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES IDR053137.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IDR053137.

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

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, IDR053137.

Start the watch

How we handle your data → Privacy

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 IDR053137 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit IDR053137, held by PHOTRONICS, INC. for NANOFAB in Boise, ID, which discharges to Fivemile, Eightmile, and Ninemile Creeks - 1st and, within the Fivemile Creek subwatershed (HUC 170501140202). The permit is classed as a Minor Discharger and is listed as administratively continued, with 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The permit was issued June 17, 2021 and expires February 28, 2026.