Clean Water Act discharge permit · NPDES HIF013454

CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING, HI: NPDES HIF013454 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

CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING, held by California Institute of Technology, holds NPDES permit HIF013454, which discharges to Pohakukoa Gulch. EPA’s file records it issued May 4, 2022 and expiring February 8, 2024.

CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING, Hawaii: Coverage under a general permit HIF013454, held by California Institute of Technology; Administratively continued (past its expiration date and still in force until reissued); issued May 4, 2022, term to February 8, 2024, by Hawaii Dept of Health, Clean Water Branch; discharges to POHAKUKOA GULCH.

CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING among its neighbors

EPA’s permit file holds 7 discharge permits in the Pohakuloa Gulch subwatershed (HUC 200100001303), HIF013454 among them.

Other permits in the Pohakuloa Gulch subwatershed (HUC 200100001303)

FY17 REPAIR DRAINAGE, SECONDARY ELECTRICAL LINES, AND TELECOMMUNICATIONS - BLOCK, Unknown: HIF011949, minor permit, discharging to PAUOA STREAM, permit term to December 5, 2018
FY23 REPAIR BAAF RUNWAY PAVEMENT AND ELECTRIC, Unknown: HIF014031, minor permit, discharging to UNNAMED DRY GULCH, permit term to February 8, 2024
POHAKULOA TRAINING AREA - AHI QUARRY, Unknown: HIF009533, minor permit, permit term to October 21, 2012
POHAKULOA TRAINING AREA - AHI QUARRY, Unknown: HIF009589, minor permit, discharging to UNNAMED STREAM, permit term to October 21, 2012
PTA BAAF, Unknown: HIF013427, minor permit, permit term to January 14, 2027
STATEWIDE VECTOR CONTROL PROGRAM, Aiea: HIF014079, minor permit, permit term to June 25, 2028

What the register holds for CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING: its NPDES ID, its permit type and status, its dates, its address, Hawaii, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES HIF013454.

Identity

Facility as filed	CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING
Permittee as filed	California Institute of Technology
NPDES ID	HIF013454
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
Issued	May 4, 2022
Expiration date	February 8, 2024
Issuing agency	Hawaii Dept of Health, Clean Water Branch
Address	HI
Receiving water	POHAKUKOA GULCH
Subwatershed	Pohakuloa Gulch (HUC 200100001303)

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 HIF013454.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES HIF013454.

Inspections

EPA’s inspection file holds no inspection for NPDES HIF013454.

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 HIF013454.

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, HIF013454.

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Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit HIF013454 for CALTECH SUBMILLIMETER OBSERVATORY DECOMMISSIONING in Hawaii, held by California Institute of Technology and discharging to Pohakukoa Gulch. The page lists a permit status of Administratively continued, a Minor Discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.