ARMSTRONG WORLD IND INC

NPDES permit PA0008761 · Minor NON-POTW · effective, expires 2031-02-28 · 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

2values over a limit
0required values missing, on 0 form(s)
0of 20 forms filed late

Last period with anything received: 2026-06-30. Most often over: BOD, carbonaceous [5 day, 20 C] (2).

Reporting

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

Limits in force (48)

OutfallParameterStatisticLimitMonths
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Solids, total suspendedMO AVG <= 80 mg/L all year
001Solids, total suspendedDAILY MX <= 160 mg/L all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Chloride [as Cl]MO AVG report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Perfluorooctanoic acid (PFOA)DAILY MX report only all year
001PerfluorooctanesulfonateDAILY MX report only all year
001Perfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
001Hexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
001Solids, total dissolvedMO AVG report only all year
001Solids, total dissolvedDAILY MX report only all year
001Solids, total dissolvedMO AVG report only all year
001Bromide [as Br]MO AVG report only all year
001Bromide [as Br]DAILY MX report only all year
001Bromide [as Br]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 80 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 160 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
004pHDAILY MX report only all year
004Solids, total suspendedDAILY MX report only all year
004Nitrogen, total [as N]DAILY MX report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Zinc, total [as Zn]DAILY MX report only all year
005pHDAILY MX report only all year
005Solids, total suspendedDAILY MX report only all year
005Nitrogen, total [as N]DAILY MX report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Zinc, total [as Zn]DAILY MX report only all year
006pHDAILY MX report only all year
006Solids, total suspendedDAILY MX report only all year
006Nitrogen, total [as N]DAILY MX report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Zinc, total [as Zn]DAILY MX report only all year
007pHDAILY MX report only all year
007Solids, total suspendedDAILY MX report only all year
007Nitrogen, total [as N]DAILY MX report only all year
007Phosphorus, total [as P]DAILY MX report only all year
007Zinc, total [as Zn]DAILY 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