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U.S. Department of the Navy

Federal facility (Ship Building And Repairing), Pearl Harbor, Hawaii. NPDES permit HI1120801, in force until Oct 31, 2030. Last 12 months: no values over a limit, 1 required value missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (4 values), outfall 002 form A monthly (4 values), outfall 003 form A monthly (4 values), outfall 004 form A monthly (4 values), outfall 001 form Q quarterly, outfall 002 form Q quarterly, and 2 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 37 reports late

Limits in force (20)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.8 SUall year001
pHmaximum≤ 8.8 SUall year001
Oxidants, total residualdaily maximum≤ 66.75 ug/Lall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 12000 gal/minall year001
Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilladaily maximum< 1 pass=0;fail=1all year001
pHminimum≥ 6.8 SUall year002
pHmaximum≤ 8.8 SUall year002
Oxidants, total residualdaily maximum≤ 66.75 ug/Lall year002
Flow, in conduit or thru treatment plantdaily maximum≤ 12000 gal/minall year002
Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilladaily maximum< 1 pass=0;fail=1all year002
pHminimum≥ 6.8 SUall year003
pHmaximum≤ 8.8 SUall year003
Oxidants, total residualdaily maximum≤ 66.75 ug/Lall year003
Flow, in conduit or thru treatment plantdaily maximum≤ 12000 gal/minall year003
Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilladaily maximum< 1 pass=0;fail=1all year003
pHminimum≥ 6.8 SUall year004
pHmaximum≤ 8.8 SUall year004
Oxidants, total residualdaily maximum≤ 66.75 ug/Lall year004
Flow, in conduit or thru treatment plantdaily maximum≤ 12000 gal/minall year004
Pass/Fail Static 20 Minute Fertilization Chronic Tripneustes gratilladaily maximum< 1 pass=0;fail=1all year004

How strict are these limits?

Cited limits by parameter: Hawaii's rules and the federal ones.

Same industry: the 3 Transportation Equipment permits in Hawaii.

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Your permit document is the final word. As JSON: /api/v1/permits/HI1120801 · MCP: https://passage-data.com/mcp