Armstrong World Industries

NPDES permit GA0003077 · Minor NON-POTW · effective, expires 2027-08-31 · 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

8values over a limit
0required values missing, on 0 form(s)
3of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (7), BOD, 5-day, 20 deg. C (1).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (12)

OutfallParameterStatisticLimitMonths
005Temperature, water deg. fahrenheitDAILY MX report only all year
005Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
005BOD, 5-day, 20 deg. CDAILY AV <= 175 lb/d all year
005BOD, 5-day, 20 deg. CDAILY MX <= 263 lb/d all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 8.5 SU all year
005Solids, total suspendedDAILY AV <= 23 mg/L all year
005Solids, total suspendedDAILY MX <= 35 mg/L all year
005Phosphorus, total [as P]DAILY AV report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY AV report only all year
005Flow, in conduit or thru treatment plantDAILY MX 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