HUNTINGTON INGALLS INC, INGALLS SHIPBUILDING DIVISION, PASCAGOULA OPERATIONS

NPDES permit MS0003069 · Minor NON-POTW · effective, expires 2031-01-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 26 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).

Limits in force (72)

OutfallParameterStatisticLimitMonths
015pHMINIMUM >= 6 SU all year
015pHMAXIMUM <= 9 SU all year
015Solids, total suspendedQRTR AVG report only all year
015Solids, total suspendedQB report only all year
015Flow, in conduit or thru treatment plantQRTR AVG report only all year
015Flow, in conduit or thru treatment plantQB report only all year
039pHMINIMUM >= 6 SU all year
039pHMAXIMUM <= 9 SU all year
039Oil & GreaseQRTR AVG report only all year
039Oil & GreaseQB report only all year
039Zinc, total recoverableQRTR AVG report only all year
039Zinc, total recoverableQB report only all year
039Copper, total recoverableQRTR AVG report only all year
039Copper, total recoverableQB report only all year
039Flow, in conduit or thru treatment plantQRTR AVG report only all year
039Flow, in conduit or thru treatment plantQB report only all year
039Chemical Oxygen Demand [COD]QRTR AVG report only all year
039Chemical Oxygen Demand [COD]QB report only all year
060pHMINIMUM >= 6 SU all year
060pHMAXIMUM <= 9 SU all year
060Oil & GreaseQRTR AVG report only all year
060Oil & GreaseQB report only all year
060Zinc, total recoverableQRTR AVG report only all year
060Zinc, total recoverableQB report only all year
060Copper, total recoverableQRTR AVG report only all year
060Copper, total recoverableQB report only all year
060Flow, in conduit or thru treatment plantQRTR AVG report only all year
060Flow, in conduit or thru treatment plantQB report only all year
060Chemical Oxygen Demand [COD]QRTR AVG report only all year
060Chemical Oxygen Demand [COD]QB report only all year
061pHMINIMUM >= 6 SU all year
061pHMAXIMUM <= 9 SU all year
061Oil & GreaseQRTR AVG report only all year
061Oil & GreaseQB report only all year
061Zinc, total recoverableQRTR AVG report only all year
061Zinc, total recoverableQB report only all year
061Copper, total recoverableQRTR AVG report only all year
061Copper, total recoverableQB report only all year
061Flow, in conduit or thru treatment plantQRTR AVG report only all year
061Flow, in conduit or thru treatment plantQB report only all year
061Chemical Oxygen Demand [COD]QRTR AVG report only all year
061Chemical Oxygen Demand [COD]QB report only all year
066Temperature, water deg. fahrenheitQRTR AVG report only all year
066Temperature, water deg. fahrenheitQB <= 90 deg F all year
066pHMINIMUM >= 6 SU all year
066pHMAXIMUM <= 9 SU all year
066Flow, in conduit or thru treatment plantQRTR AVG report only all year
066Flow, in conduit or thru treatment plantQB report only all year
066Chlorine, total residualQRTR AVG report only all year
066Chlorine, total residualQB <= .013 mg/L all year
085pHMINIMUM >= 6 SU all year
085pHMAXIMUM <= 9 SU all year
085Oil & GreaseQRTR AVG report only all year
085Oil & GreaseQB report only all year
085Zinc, total recoverableQRTR AVG report only all year
085Zinc, total recoverableQB report only all year
085Copper, total recoverableQRTR AVG report only all year
085Copper, total recoverableQB report only all year
085Flow, in conduit or thru treatment plantQRTR AVG report only all year
085Flow, in conduit or thru treatment plantQB report only all year
085Chemical Oxygen Demand [COD]QRTR AVG report only all year
085Chemical Oxygen Demand [COD]QB report only all year
091pHMINIMUM >= 6 SU all year
091pHMAXIMUM <= 9 SU all year
091Oil & GreaseQRTR AVG report only all year
091Oil & GreaseQB report only all year
091Copper, total recoverableQRTR AVG report only all year
091Copper, total recoverableQB report only all year
091Flow, in conduit or thru treatment plantQRTR AVG report only all year
091Flow, in conduit or thru treatment plantQB report only all year
091Chemical Oxygen Demand [COD]QRTR AVG report only all year
091Chemical Oxygen Demand [COD]QB report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states