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Clean Water Act discharge permit · NPDES HIF001933

EWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN, Waipahu, HI: NPDES HIF001933 discharge permit, effluent exceedances, inspections, penalties

EWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN, held by Honolulu Board of Water Supply, holds NPDES permit HIF001933, which discharges to Honouliuli Gulch. EPA’s file records it issued February 11, 2009 and expiring October 21, 2012. 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.

What the register holds for EWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN: its NPDES ID, its permit type and status, its dates, its address in Waipahu, Hawaii, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES HIF001933.

Identity

Facility as filedEWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN
Permittee as filedHonolulu Board of Water Supply
NPDES IDHIF001933
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedFebruary 11, 2009
Expiration dateOctober 21, 2012
Issuing agencyHawaii Dept of Health, Clean Water Branch
AddressWaipahu, HI 96797
Receiving waterHONOULIULI GULCH
SubwatershedHonouliuli Stream (HUC 200600000404)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES HIF001933.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES HIF001933.

Inspections

EPA’s inspection file holds no inspection for NPDES HIF001933.

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 HIF001933.

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, HIF001933.

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How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 HIF001933 there.

EWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN, Waipahu, Hawaii: Coverage under a general permit HIF001933, held by Honolulu Board of Water Supply; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued February 11, 2009, term to October 21, 2012, by Hawaii Dept of Health, Clean Water Branch; discharges to HONOULIULI GULCH.

Hawaii holds 850 Construction stormwater coverages of this permit type in EPA’s file; 95 were issued before HIF001933. Honolulu Board of Water Supply holds 8 permits in Hawaii.

Other permits held by Honolulu Board of Water Supply

Coverages issued nearest HIF001933

EWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN among its neighbors

36 discharge permits are in the Honouliuli Stream subwatershed (HUC 200600000404); HIF001933 is one. Its county: 814, 13 major; HIF001933 is minor permit.

Other permits in the Honouliuli Stream subwatershed (HUC 200600000404)

Nearby on the register

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

What this page shows

Honolulu County's 274 storm water construction permits include EWA SHAFT GAC TREATMENT FACILITY & 36 TRANSMISSION MAIN, and 0.0% of that group has a violation on file. The Honouliuli Stream subwatershed contains 36 NPDES permits, including this permit. Of the 274 permits, 16.4% were issued before this permit, counting it.