Clean Water Act discharge permit · NPDES HIF013606

MATHESON TRI-GAS HAWAII (2), Kapolei, HI: NPDES HIF013606 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

MATHESON TRI-GAS HAWAII (2), held by Matheson Tri-Gas, Inc., holds NPDES permit HIF013606. EPA’s file records it issued July 22, 2022 and expiring January 14, 2027. 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	MATHESON TRI-GAS HAWAII (2)
Permittee as filed	Matheson Tri-Gas, Inc.
NPDES ID	HIF013606
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	July 22, 2022
Expiration date	January 14, 2027
Issuing agency	Hawaii Dept of Health, Clean Water Branch
Address	Kapolei, HI 96707
Subwatershed	Kaloi Gulch (HUC 200600000405)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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 HIF013606.

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 HIF013606.

Inspections

Date	What EPA recorded	Agency
June 4, 2026	Evaluation	S

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 HIF013606.

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 HIF013606 there.

MATHESON TRI-GAS HAWAII (2), Kapolei, Hawaii: Coverage under a general permit HIF013606, held by Matheson Tri-Gas, Inc.; Industrial stormwater; Effective; issued July 22, 2022, term to January 14, 2027, by Hawaii Dept of Health, Clean Water Branch.

June 4, 2026: Evaluation (S).

Hawaii holds 293 Industrial stormwater coverages of this permit type in EPA’s file; 167 were issued before HIF013606.

Coverages issued nearest HIF013606

July 21, 2022: ALOHA PETROLEUM TFM TERMINAL, Kapolei, HIF013592, held by Aloha Petroleum LLC
July 21, 2022: ALOHA PETROLEUM NAWILIWILI TERMINAL, Lihue, HIF013593, held by Aloha Petroleum LLC, A Delaware LLC
July 21, 2022: ROBERTS TOURS AND TRANSPORTATION, INC. MOKUMOA/OAHU BASE YARD, Honolulu, HIF013600, held by Roberts Tours and Transportation, Inc.
July 22, 2022: ROYAL STAR HAWAII MOTORCOACH TOURS & DESTINATION SERVICES (2), Honolulu, HIF013604, held by Royal Star Hawaii Motorcoach Tours and Destination Services
July 22, 2022: LENOX METALS, LLC (2), Kapolei, HIF013605, held by Lenox Metals, LLC
July 22, 2022: YOUNG BROTHERS, LLC - HILO, Hilo, HIF013607, held by Young Brothers, LLC
July 22, 2022: YOUNG BROTHERS, LLC AND FOSS MARITIME COMPANY, LLC - HONOLULU PIER 21, Honolulu, HIF013608, held by Young Brothers, LLC and Foss Maritime Company, LLC
July 22, 2022: YOUNG BROTHERS, LLC - KAHULUI, Kahului, HIF013609, held by Young Brothers, LLC
July 25, 2022: YOUNG BROTHERS, LLC - HONOLULU PIERS 39 AND 40, Honolulu, HIF013610, held by Young Brothers, LLC
July 25, 2022: YOUNG BROTHERS, LLC - KAUMALAPAU, HIF013611, held by Young Brothers, LLC

MATHESON TRI-GAS HAWAII (2) among its neighbors

EPA’s permit file holds 184 discharge permits in the Kaloi Gulch subwatershed (HUC 200600000405), HIF013606 among them. Its county holds 814, 13 of them major permits; HIF013606 is a minor permit.

Other permits in the Kaloi Gulch subwatershed (HUC 200600000405)

'ILIMA AT LEIHANO, Kapolei: HIF009623, minor permit, permit term to October 21, 2012
A&B KOMOHANA INDUSTRIAL WAREHOUSE, Kapolei: HIF014614, minor permit, permit term to January 28, 2029
AES HAWAII POWER PLANT DEMOLITION, Kapolei: HIF014250, minor permit, discharging to PACIFIC OCEAN, permit term to February 8, 2024
ALOHA PETROLEM, LTD., Kapolei: HIF001285, minor permit, permit term to November 6, 2007
ALOHA PETROLEUM TFM TERMINAL, Kapolei: HIF013592, minor permit, permit term to January 14, 2027
B117 BARBERS POINT, Kapolei: HIF006356, minor permit, permit term to October 21, 2012
BIRCHSTONE - HONOLULU, Kapolei: HI23BH307, minor permit, permit term to October 9, 2028
BLOOD BANK OF HAWAII, Kapolei: HIF013840, minor permit, discharging to UNNAMED STREAM, permit term to February 8, 2024
BONDED MATERIALS COMPANY MANUFACTURING CENTER, Kapolei: HIF014377, minor permit, permit term to January 14, 2027
C-130J TENSION MEMBRANE HANGAR, Kapolei: HIF015082, minor permit, permit term to January 28, 2029

Nearby on the register

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

MATHESON TRI-GAS HAWAII (2) belongs to a Honolulu County storm water industrial group of 132 permits, and 4.5% carry a violation on file. The Kaloi Gulch subwatershed holds 184 NPDES permits, and 72.4% of the 127 county permits were issued before this permit.