NATURAL GAS PIPELINE COMPANY OF AMERICA

NPDES permit IA0058262 · Minor NON-POTW · effective, expires 2028-05-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among IA permits in EPA's filings — check your permit).

Limits in force (15)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001Oxygen demand, chem. [high level] [COD]30DA AVG <= 94 mg/L all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 94 mg/L all year
001Oxygen demand, chem. [high level] [COD]30DA AVG <= 156.5 lb/d all year
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 156.5 lb/d all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 50.04 lb/d all year
001Solids, total suspendedDAILY MX <= 75.06 lb/d all year
001Oil & Grease30DA AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & Grease30DA AVG <= 16.7 lb/d all year
001Oil & GreaseDAILY MX <= 25.02 lb/d 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