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Ascend Performance Materials Operations, LLC

Organic Fibers, Noncellulosic, major discharger, Decatur, Alabama. NPDES permit AL0000116, in force until Dec 31, 2026. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 003 form 1 monthly (15 values), outfall 004 form 1 monthly (22 values), outfall 004 form T quarterly (2 values), outfall 001 form S twice a year, outfall 002 form S twice a year, outfall 004 form Y yearly, and 10 more forms
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 52 reports late

Limits in force (260)

ParameterStatisticLimitMonthsOutfall
pHdaily minimumreport only (SU)all year001
pHdaily maximumreport only (SU)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year001
pHdaily minimumreport only (SU)all year002
pHdaily maximumreport only (SU)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Solids, total dissolveddaily maximumreport only (mg/L)all year002
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year002
Temperature, water deg. fahrenheitdaily maximum≤ 110 deg Fall year003
pHdaily minimum≥ 6 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmonthly average≤ 35 mg/Lall year003
Solids, total suspendeddaily maximum≤ 70 mg/Lall year003
Oil & Greasedaily maximum≤ 15 mg/Lall year003
Nitrogen, total [as N]daily maximumreport only (mg/L)all year003
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year003
Iron, total recoverablemonthly average≤ 3.5 mg/Lall year003
Iron, total recoverabledaily maximum≤ 7 mg/Lall year003
Manganese, total recoverablemonthly average≤ 2 mg/Lall year003
Manganese, total recoverabledaily maximum≤ 4 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year003
BOD, 5-day, 20 deg. Cmonthly average≤ 387 lb/dall year004
BOD, 5-day, 20 deg. Cdaily maximum≤ 994.6 lb/dall year004
pHdaily minimumreport only (SU)all year004
pHdaily maximumreport only (SU)all year004
Solids, total suspendedmonthly average≤ 530.4 lb/dall year004
Solids, total suspendeddaily maximum≤ 1643.8 lb/dall year004
Nitrogen, ammonia total [as N]monthly average≤ 467 lb/dall year004
Nitrogen, ammonia total [as N]daily maximum≤ 934 lb/dall year004
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year004
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year004
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Apr–Sep004
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Apr–Sep004
Phosphorus, total [as P]monthly average= 470 mg/LApr–Sep004
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Sep004
Cyanide, total [as CN]monthly average≤ 3.37 lb/dall year004
Cyanide, total [as CN]daily maximum≤ 9.62 lb/dall year004
Chromium, total [as Cr]monthly average≤ 8.924 lb/dall year004
Chromium, total [as Cr]daily maximum≤ 22.27 lb/dall year004
Copper, total [as Cu]monthly average≤ 11.658 lb/dall year004
Copper, total [as Cu]daily maximum≤ 27.174 lb/dall year004
Lead, total [as Pb]monthly average≤ 2.573 lb/dall year004
Lead, total [as Pb]daily maximum≤ 5.547 lb/dall year004
Nickel, total [as Ni]monthly average≤ 13.587 lb/dall year004
Nickel, total [as Ni]daily maximum≤ 31.998 lb/dall year004
Zinc, total [as Zn]monthly average≤ 8.442 lb/dall year004
Zinc, total [as Zn]daily maximum≤ 20.984 lb/dall year004
Carbon tetrachloridemonthly average≤ .144 lb/dall year004
Carbon tetrachloridedaily maximum≤ .305 lb/dall year004
1,2-Dichloroethanemonthly average≤ .545 lb/dall year004
1,2-Dichloroethanedaily maximum≤ 1.691 lb/dall year004
Chloroformmonthly average≤ .168 lb/dall year004
Chloroformdaily maximum≤ .369 lb/dall year004
Toluenemonthly average≤ .208 lb/dall year004
Toluenedaily maximum≤ .641 lb/dall year004
Benzenemonthly average≤ .297 lb/dall year004
Benzenedaily maximum≤ 1.09 lb/dall year004
Acenaphthylenemonthly average≤ .176 lb/dall year004
Acenaphthylenedaily maximum≤ .473 lb/dall year004
Acenaphthenemonthly average≤ .176 lb/dall year004
Acenaphthenedaily maximum≤ .473 lb/dall year004
Acrylonitrilemonthly average≤ .769 lb/dall year004
Acrylonitriledaily maximum≤ 1.94 lb/dall year004
Anthracenemonthly average≤ .176 lb/dall year004
Anthracenedaily maximum≤ .473 lb/dall year004
Benzo[k]fluoranthenemonthly average≤ .176 lb/dall year004
Benzo[k]fluoranthenedaily maximum≤ .473 lb/dall year004
Benzo[a]pyrenemonthly average≤ .184 lb/dall year004
Benzo[a]pyrenedaily maximum≤ .489 lb/dall year004
Chlorobenzenemonthly average≤ .12 lb/dall year004
Chlorobenzenedaily maximum≤ .224 lb/dall year004
Chrysenemonthly average≤ .176 lb/dall year004
Chrysenedaily maximum≤ .473 lb/dall year004
Diethyl phthalatemonthly average≤ .649 lb/dall year004
Diethyl phthalatedaily maximum≤ 1.627 lb/dall year004
Dimethyl phthalatemonthly average≤ .152 lb/dall year004
Dimethyl phthalatedaily maximum≤ .377 lb/dall year004
Ethylbenzenemonthly average≤ .256 lb/dall year004
Ethylbenzenedaily maximum≤ .866 lb/dall year004
Fluoranthenemonthly average≤ .2 lb/dall year004
Fluoranthenedaily maximum≤ .545 lb/dall year004
Fluorenemonthly average≤ .176 lb/dall year004
Fluorenedaily maximum≤ .473 lb/dall year004
Hexachlorobutadienemonthly average≤ .16 lb/dall year004
Hexachlorobutadienedaily maximum≤ .393 lb/dall year004
Hexachloroethanemonthly average≤ .168 lb/dall year004
Hexachloroethanedaily maximum≤ .433 lb/dall year004
Methyl chloride [Chloromethane]monthly average≤ .689 lb/dall year004
Methyl chloride [Chloromethane]daily maximum≤ 1.523 lb/dall year004
Methylene chloridemonthly average≤ .321 lb/dall year004
Methylene chloridedaily maximum≤ .713 lb/dall year004
Nitrobenzenemonthly average≤ .216 lb/dall year004
Nitrobenzenedaily maximum≤ .545 lb/dall year004
Phenanthrenemonthly average≤ .176 lb/dall year004
Phenanthrenedaily maximum≤ .473 lb/dall year004
Pyrenemonthly average≤ .2 lb/dall year004
Pyrenedaily maximum≤ .537 lb/dall year004
Tetrachloroethylenemonthly average≤ .176 lb/dall year004
Tetrachloroethylenedaily maximum≤ .449 lb/dall year004
1,1-Dichloroethanemonthly average≤ .176 lb/dall year004
1,1-Dichloroethanedaily maximum≤ .473 lb/dall year004
1,1-Dichloroethylenemonthly average≤ .128 lb/dall year004
1,1-Dichloroethylenedaily maximum≤ .2 lb/dall year004
1,1,1-Trichloroethanemonthly average≤ .168 lb/dall year004
1,1,1-Trichloroethanedaily maximum≤ .433 lb/dall year004
1,1,2-Trichloroethanemonthly average≤ .168 lb/dall year004
1,1,2-Trichloroethanedaily maximum≤ .433 lb/dall year004
Benzo[a]anthracenemonthly average≤ .176 lb/dall year004
Benzo[a]anthracenedaily maximum≤ .473 lb/dall year004
1,2-Dichlorobenzenemonthly average≤ .617 lb/dall year004
1,2-Dichlorobenzenedaily maximum≤ 1.306 lb/dall year004
1,2-Dichloropropanemonthly average≤ 1.226 lb/dall year004
1,2-Dichloropropanedaily maximum≤ 1.843 lb/dall year004
trans-1,2-Dichloroethylenemonthly average≤ .168 lb/dall year004
trans-1,2-Dichloroethylenedaily maximum≤ .433 lb/dall year004
1,2,4-Trichlorobenzenemonthly average≤ .545 lb/dall year004
1,2,4-Trichlorobenzenedaily maximum≤ 1.122 lb/dall year004
1,3-Dichlorobenzenemonthly average≤ .248 lb/dall year004
1,3-Dichlorobenzenedaily maximum≤ .353 lb/dall year004
1,4-Dichlorobenzenemonthly average≤ .12 lb/dall year004
1,4-Dichlorobenzenedaily maximum≤ .224 lb/dall year004
2-Chlorophenolmonthly average≤ .248 lb/dall year004
2-Chlorophenoldaily maximum≤ .785 lb/dall year004
2-Nitrophenolmonthly average≤ .329 lb/dall year004
2-Nitrophenoldaily maximum≤ .553 lb/dall year004
2,4-Dichlorophenolmonthly average≤ .313 lb/dall year004
2,4-Dichlorophenoldaily maximum≤ .898 lb/dall year004
2,4-Dimethylphenolmonthly average≤ .144 lb/dall year004
2,4-Dimethylphenoldaily maximum≤ .289 lb/dall year004
2,4-Dinitrotoluenemonthly average≤ .906 lb/dall year004
2,4-Dinitrotoluenedaily maximum≤ 2.284 lb/dall year004
2,4-Dinitrophenolmonthly average≤ .569 lb/dall year004
2,4-Dinitrophenoldaily maximum≤ .986 lb/dall year004
2,6-Dinitrotoluenemonthly average≤ 2.044 lb/dall year004
2,6-Dinitrotoluenedaily maximum≤ 5.137 lb/dall year004
4-Nitrophenolmonthly average≤ .577 lb/dall year004
4-Nitrophenoldaily maximum≤ .994 lb/dall year004
4,6-Dinitro-o-cresolmonthly average≤ .625 lb/dall year004
4,6-Dinitro-o-cresoldaily maximum≤ 2.22 lb/dall year004
Naphthalenemonthly average≤ .176 lb/dall year004
Naphthalenedaily maximum≤ .473 lb/dall year004
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .826 lb/dall year004
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 2.236 lb/dall year004
Di-n-butyl phthalatemonthly average≤ .216 lb/dall year004
Di-n-butyl phthalatedaily maximum≤ .457 lb/dall year004
Vinyl chloridemonthly average≤ .834 lb/dall year004
Vinyl chloridedaily maximum≤ 2.148 lb/dall year004
Trichloroethylenemonthly average≤ .168 lb/dall year004
Trichloroethylenedaily maximum≤ .433 lb/dall year004
Hexachlorobenzenemonthly average≤ .00497 lb/dall year004
Hexachlorobenzenedaily maximum≤ .00745 lb/dall year004
Phenolsmonthly average≤ .12 lb/dall year004
Phenolsdaily maximum≤ .208 lb/dall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1all year004
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximum≤ 0 pass=0;fail=1all year004
1,3-Dichloropropenemonthly average≤ .232 lb/dall year004
1,3-Dichloropropenedaily maximum≤ .353 lb/dall year004
3,4-Benzofluoranthenemonthly average≤ .184 lb/dall year004
3,4-Benzofluoranthenedaily maximum≤ .489 lb/dall year004
pH range excursions, > 60 minutesmaximum≤ 0 occur/moall year004
pH range excursions, monthly total accummaximum≤ 446 minall year004
Chloroethanemonthly average≤ .834 lb/dall year004
Chloroethanedaily maximum≤ 2.148 lb/dall year004
pHdaily minimumreport only (SU)all year006
pHdaily maximumreport only (SU)all year006
Solids, total suspendeddaily maximumreport only (mg/L)all year006
Oil & Greasedaily maximum≤ 15 mg/Lall year006
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year006
Cyanide, total [as CN]daily maximumreport only (mg/L)all year006
Iron, total recoverabledaily maximumreport only (mg/L)all year006
Barium, total recoverabledaily maximumreport only (mg/L)all year006
Manganese, total [as Mn]daily maximumreport only (mg/L)all year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Solids, total dissolveddaily maximumreport only (mg/L)all year006
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year006
pHdaily minimumreport only (SU)all year009
pHdaily maximumreport only (SU)all year009
Solids, total suspendeddaily maximumreport only (mg/L)all year009
Oil & Greasedaily maximum≤ 15 mg/Lall year009
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year009
Solids, total dissolveddaily maximumreport only (mg/L)all year009
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year009
pHdaily minimumreport only (SU)all year014
pHdaily maximumreport only (SU)all year014
Solids, total suspendeddaily maximumreport only (mg/L)all year014
Oil & Greasedaily maximum≤ 15 mg/Lall year014
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year014
Solids, total dissolveddaily maximumreport only (mg/L)all year014
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year014
pHdaily minimumreport only (SU)all year016
pHdaily maximumreport only (SU)all year016
Solids, total suspendeddaily maximumreport only (mg/L)all year016
Oil & Greasedaily maximum≤ 15 mg/Lall year016
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year016
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year016
Solids, total dissolveddaily maximumreport only (mg/L)all year016
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year016
pHdaily minimumreport only (SU)all year019
pHdaily maximumreport only (SU)all year019
Solids, total suspendeddaily maximumreport only (mg/L)all year019
Oil & Greasedaily maximum≤ 15 mg/Lall year019
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year019
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year019
Solids, total dissolveddaily maximumreport only (mg/L)all year019
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year019
pHdaily minimumreport only (SU)all year020
pHdaily maximumreport only (SU)all year020
Solids, total suspendeddaily maximumreport only (mg/L)all year020
Oil & Greasedaily maximum≤ 15 mg/Lall year020
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year020
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year020
Solids, total dissolveddaily maximumreport only (mg/L)all year020
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year020
pHdaily minimumreport only (SU)all year024
pHdaily maximumreport only (SU)all year024
Solids, total suspendeddaily maximumreport only (mg/L)all year024
Oil & Greasedaily maximum≤ 15 mg/Lall year024
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year024
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year024
Solids, total dissolveddaily maximumreport only (mg/L)all year024
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year024
pHdaily minimumreport only (SU)all year027
pHdaily maximumreport only (SU)all year027
Solids, total suspendeddaily maximumreport only (mg/L)all year027
Oil & Greasedaily maximum≤ 15 mg/Lall year027
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year027
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year027
Solids, total dissolveddaily maximumreport only (mg/L)all year027
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year027
pHdaily minimumreport only (SU)all year028
pHdaily maximumreport only (SU)all year028
Solids, total suspendeddaily maximumreport only (mg/L)all year028
Oil & Greasedaily maximum≤ 15 mg/Lall year028
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year028
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year028
Solids, total dissolveddaily maximumreport only (mg/L)all year028
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year028
pHdaily minimumreport only (SU)all year032
pHdaily maximumreport only (SU)all year032
Solids, total suspendeddaily maximumreport only (mg/L)all year032
Oil & Greasedaily maximum≤ 15 mg/Lall year032
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year032
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year032
Solids, total dissolveddaily maximumreport only (mg/L)all year032
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year032

How strict are these limits?

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

Same industry: the 79 Chemicals and Allied Products permits in Alabama.

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