Ascend Performance Materials Operations, LLC

NPDES permit AL0000116 · Major NON-POTW · effective, expires 2026-12-31 · 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 50 forms filed late

Last period with anything received: 2026-07-31.

Reporting

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

Limits in force (260)

OutfallParameterStatisticLimitMonths
001pHDAILY MN report only all year
001pHDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Carbon, tot organic [TOC]DAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Solids, total dissolvedDAILY MX report only all year
001Chemical Oxygen Demand [COD]DAILY MX report only all year
002pHDAILY MN report only all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Carbon, tot organic [TOC]DAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Solids, total dissolvedDAILY MX report only all year
002Chemical Oxygen Demand [COD]DAILY MX report only all year
003Temperature, water deg. fahrenheitDAILY MX <= 110 deg F all year
003pHDAILY MN >= 6 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 35 mg/L all year
003Solids, total suspendedDAILY MX <= 70 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Nitrogen, total [as N]DAILY MX report only all year
003Carbon, tot organic [TOC]DAILY MX report only all year
003Iron, total recoverableMO AVG <= 3.5 mg/L all year
003Iron, total recoverableDAILY MX <= 7 mg/L all year
003Manganese, total recoverableMO AVG <= 2 mg/L all year
003Manganese, total recoverableDAILY MX <= 4 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chemical Oxygen Demand [COD]DAILY MX report only all year
004BOD, 5-day, 20 deg. CMO AVG <= 387 lb/d all year
004BOD, 5-day, 20 deg. CDAILY MX <= 994.6 lb/d all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedMO AVG <= 530.4 lb/d all year
004Solids, total suspendedDAILY MX <= 1643.8 lb/d all year
004Nitrogen, ammonia total [as N]MO AVG <= 467 lb/d all year
004Nitrogen, ammonia total [as N]DAILY MX <= 934 lb/d all year
004Nitrogen, ammonia total [as N]MO AVG report only all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrogen, Kjeldahl, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Nitrite + Nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Phosphorus, total [as P]MO AVG = 470 mg/L Apr, May, Jun, Jul, Aug, Sep
004Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Cyanide, total [as CN]MO AVG <= 3.37 lb/d all year
004Cyanide, total [as CN]DAILY MX <= 9.62 lb/d all year
004Chromium, total [as Cr]MO AVG <= 8.924 lb/d all year
004Chromium, total [as Cr]DAILY MX <= 22.27 lb/d all year
004Copper, total [as Cu]MO AVG <= 11.658 lb/d all year
004Copper, total [as Cu]DAILY MX <= 27.174 lb/d all year
004Lead, total [as Pb]MO AVG <= 2.573 lb/d all year
004Lead, total [as Pb]DAILY MX <= 5.547 lb/d all year
004Nickel, total [as Ni]MO AVG <= 13.587 lb/d all year
004Nickel, total [as Ni]DAILY MX <= 31.998 lb/d all year
004Zinc, total [as Zn]MO AVG <= 8.442 lb/d all year
004Zinc, total [as Zn]DAILY MX <= 20.984 lb/d all year
004Carbon tetrachlorideMO AVG <= .144 lb/d all year
004Carbon tetrachlorideDAILY MX <= .305 lb/d all year
0041,2-DichloroethaneMO AVG <= .545 lb/d all year
0041,2-DichloroethaneDAILY MX <= 1.691 lb/d all year
004ChloroformMO AVG <= .168 lb/d all year
004ChloroformDAILY MX <= .369 lb/d all year
004TolueneMO AVG <= .208 lb/d all year
004TolueneDAILY MX <= .641 lb/d all year
004BenzeneMO AVG <= .297 lb/d all year
004BenzeneDAILY MX <= 1.09 lb/d all year
004AcenaphthyleneMO AVG <= .176 lb/d all year
004AcenaphthyleneDAILY MX <= .473 lb/d all year
004AcenaphtheneMO AVG <= .176 lb/d all year
004AcenaphtheneDAILY MX <= .473 lb/d all year
004AcrylonitrileMO AVG <= .769 lb/d all year
004AcrylonitrileDAILY MX <= 1.94 lb/d all year
004AnthraceneMO AVG <= .176 lb/d all year
004AnthraceneDAILY MX <= .473 lb/d all year
004Benzo[k]fluorantheneMO AVG <= .176 lb/d all year
004Benzo[k]fluorantheneDAILY MX <= .473 lb/d all year
004Benzo[a]pyreneMO AVG <= .184 lb/d all year
004Benzo[a]pyreneDAILY MX <= .489 lb/d all year
004ChlorobenzeneMO AVG <= .12 lb/d all year
004ChlorobenzeneDAILY MX <= .224 lb/d all year
004ChryseneMO AVG <= .176 lb/d all year
004ChryseneDAILY MX <= .473 lb/d all year
004Diethyl phthalateMO AVG <= .649 lb/d all year
004Diethyl phthalateDAILY MX <= 1.627 lb/d all year
004Dimethyl phthalateMO AVG <= .152 lb/d all year
004Dimethyl phthalateDAILY MX <= .377 lb/d all year
004EthylbenzeneMO AVG <= .256 lb/d all year
004EthylbenzeneDAILY MX <= .866 lb/d all year
004FluorantheneMO AVG <= .2 lb/d all year
004FluorantheneDAILY MX <= .545 lb/d all year
004FluoreneMO AVG <= .176 lb/d all year
004FluoreneDAILY MX <= .473 lb/d all year
004HexachlorobutadieneMO AVG <= .16 lb/d all year
004HexachlorobutadieneDAILY MX <= .393 lb/d all year
004HexachloroethaneMO AVG <= .168 lb/d all year
004HexachloroethaneDAILY MX <= .433 lb/d all year
004Methyl chloride [Chloromethane]MO AVG <= .689 lb/d all year
004Methyl chloride [Chloromethane]DAILY MX <= 1.523 lb/d all year
004Methylene chlorideMO AVG <= .321 lb/d all year
004Methylene chlorideDAILY MX <= .713 lb/d all year
004NitrobenzeneMO AVG <= .216 lb/d all year
004NitrobenzeneDAILY MX <= .545 lb/d all year
004PhenanthreneMO AVG <= .176 lb/d all year
004PhenanthreneDAILY MX <= .473 lb/d all year
004PyreneMO AVG <= .2 lb/d all year
004PyreneDAILY MX <= .537 lb/d all year
004TetrachloroethyleneMO AVG <= .176 lb/d all year
004TetrachloroethyleneDAILY MX <= .449 lb/d all year
0041,1-DichloroethaneMO AVG <= .176 lb/d all year
0041,1-DichloroethaneDAILY MX <= .473 lb/d all year
0041,1-DichloroethyleneMO AVG <= .128 lb/d all year
0041,1-DichloroethyleneDAILY MX <= .2 lb/d all year
0041,1,1-TrichloroethaneMO AVG <= .168 lb/d all year
0041,1,1-TrichloroethaneDAILY MX <= .433 lb/d all year
0041,1,2-TrichloroethaneMO AVG <= .168 lb/d all year
0041,1,2-TrichloroethaneDAILY MX <= .433 lb/d all year
004Benzo[a]anthraceneMO AVG <= .176 lb/d all year
004Benzo[a]anthraceneDAILY MX <= .473 lb/d all year
0041,2-DichlorobenzeneMO AVG <= .617 lb/d all year
0041,2-DichlorobenzeneDAILY MX <= 1.306 lb/d all year
0041,2-DichloropropaneMO AVG <= 1.226 lb/d all year
0041,2-DichloropropaneDAILY MX <= 1.843 lb/d all year
004trans-1,2-DichloroethyleneMO AVG <= .168 lb/d all year
004trans-1,2-DichloroethyleneDAILY MX <= .433 lb/d all year
0041,2,4-TrichlorobenzeneMO AVG <= .545 lb/d all year
0041,2,4-TrichlorobenzeneDAILY MX <= 1.122 lb/d all year
0041,3-DichlorobenzeneMO AVG <= .248 lb/d all year
0041,3-DichlorobenzeneDAILY MX <= .353 lb/d all year
0041,4-DichlorobenzeneMO AVG <= .12 lb/d all year
0041,4-DichlorobenzeneDAILY MX <= .224 lb/d all year
0042-ChlorophenolMO AVG <= .248 lb/d all year
0042-ChlorophenolDAILY MX <= .785 lb/d all year
0042-NitrophenolMO AVG <= .329 lb/d all year
0042-NitrophenolDAILY MX <= .553 lb/d all year
0042,4-DichlorophenolMO AVG <= .313 lb/d all year
0042,4-DichlorophenolDAILY MX <= .898 lb/d all year
0042,4-DimethylphenolMO AVG <= .144 lb/d all year
0042,4-DimethylphenolDAILY MX <= .289 lb/d all year
0042,4-DinitrotolueneMO AVG <= .906 lb/d all year
0042,4-DinitrotolueneDAILY MX <= 2.284 lb/d all year
0042,4-DinitrophenolMO AVG <= .569 lb/d all year
0042,4-DinitrophenolDAILY MX <= .986 lb/d all year
0042,6-DinitrotolueneMO AVG <= 2.044 lb/d all year
0042,6-DinitrotolueneDAILY MX <= 5.137 lb/d all year
0044-NitrophenolMO AVG <= .577 lb/d all year
0044-NitrophenolDAILY MX <= .994 lb/d all year
0044,6-Dinitro-o-cresolMO AVG <= .625 lb/d all year
0044,6-Dinitro-o-cresolDAILY MX <= 2.22 lb/d all year
004NaphthaleneMO AVG <= .176 lb/d all year
004NaphthaleneDAILY MX <= .473 lb/d all year
004Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= .826 lb/d all year
004Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 2.236 lb/d all year
004Di-n-butyl phthalateMO AVG <= .216 lb/d all year
004Di-n-butyl phthalateDAILY MX <= .457 lb/d all year
004Vinyl chlorideMO AVG <= .834 lb/d all year
004Vinyl chlorideDAILY MX <= 2.148 lb/d all year
004TrichloroethyleneMO AVG <= .168 lb/d all year
004TrichloroethyleneDAILY MX <= .433 lb/d all year
004HexachlorobenzeneMO AVG <= .00497 lb/d all year
004HexachlorobenzeneDAILY MX <= .00745 lb/d all year
004PhenolsMO AVG <= .12 lb/d all year
004PhenolsDAILY MX <= .208 lb/d all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 0 pass=0;fail=1 all year
004Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 0 pass=0;fail=1 all year
0041,3-DichloropropeneMO AVG <= .232 lb/d all year
0041,3-DichloropropeneDAILY MX <= .353 lb/d all year
0043,4-BenzofluorantheneMO AVG <= .184 lb/d all year
0043,4-BenzofluorantheneDAILY MX <= .489 lb/d all year
004pH range excursions, > 60 minutesMAXIMUM <= 0 occur/mo all year
004pH range excursions, monthly total accumMAXIMUM <= 446 min all year
004ChloroethaneMO AVG <= .834 lb/d all year
004ChloroethaneDAILY MX <= 2.148 lb/d all year
006pHDAILY MN report only all year
006pHDAILY MX report only all year
006Solids, total suspendedDAILY MX report only all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Carbon, tot organic [TOC]DAILY MX report only all year
006Cyanide, total [as CN]DAILY MX report only all year
006Iron, total recoverableDAILY MX report only all year
006Barium, total recoverableDAILY MX report only all year
006Manganese, total [as Mn]DAILY MX report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Solids, total dissolvedDAILY MX report only all year
006Chemical Oxygen Demand [COD]DAILY MX report only all year
009pHDAILY MN report only all year
009pHDAILY MX report only all year
009Solids, total suspendedDAILY MX report only all year
009Oil & GreaseDAILY MX <= 15 mg/L all year
009Carbon, tot organic [TOC]DAILY MX report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Solids, total dissolvedDAILY MX report only all year
009Chemical Oxygen Demand [COD]DAILY MX report only all year
014pHDAILY MN report only all year
014pHDAILY MX report only all year
014Solids, total suspendedDAILY MX report only all year
014Oil & GreaseDAILY MX <= 15 mg/L all year
014Carbon, tot organic [TOC]DAILY MX report only all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Solids, total dissolvedDAILY MX report only all year
014Chemical Oxygen Demand [COD]DAILY MX report only all year
016pHDAILY MN report only all year
016pHDAILY MX report only all year
016Solids, total suspendedDAILY MX report only all year
016Oil & GreaseDAILY MX <= 15 mg/L all year
016Carbon, tot organic [TOC]DAILY MX report only all year
016Flow, in conduit or thru treatment plantDAILY MX report only all year
016Solids, total dissolvedDAILY MX report only all year
016Chemical Oxygen Demand [COD]DAILY MX report only all year
019pHDAILY MN report only all year
019pHDAILY MX report only all year
019Solids, total suspendedDAILY MX report only all year
019Oil & GreaseDAILY MX <= 15 mg/L all year
019Carbon, tot organic [TOC]DAILY MX report only all year
019Flow, in conduit or thru treatment plantDAILY MX report only all year
019Solids, total dissolvedDAILY MX report only all year
019Chemical Oxygen Demand [COD]DAILY MX report only all year
020pHDAILY MN report only all year
020pHDAILY MX report only all year
020Solids, total suspendedDAILY MX report only all year
020Oil & GreaseDAILY MX <= 15 mg/L all year
020Carbon, tot organic [TOC]DAILY MX report only all year
020Flow, in conduit or thru treatment plantDAILY MX report only all year
020Solids, total dissolvedDAILY MX report only all year
020Chemical Oxygen Demand [COD]DAILY MX report only all year
024pHDAILY MN report only all year
024pHDAILY MX report only all year
024Solids, total suspendedDAILY MX report only all year
024Oil & GreaseDAILY MX <= 15 mg/L all year
024Carbon, tot organic [TOC]DAILY MX report only all year
024Flow, in conduit or thru treatment plantDAILY MX report only all year
024Solids, total dissolvedDAILY MX report only all year
024Chemical Oxygen Demand [COD]DAILY MX report only all year
027pHDAILY MN report only all year
027pHDAILY MX report only all year
027Solids, total suspendedDAILY MX report only all year
027Oil & GreaseDAILY MX <= 15 mg/L all year
027Carbon, tot organic [TOC]DAILY MX report only all year
027Flow, in conduit or thru treatment plantDAILY MX report only all year
027Solids, total dissolvedDAILY MX report only all year
027Chemical Oxygen Demand [COD]DAILY MX report only all year
028pHDAILY MN report only all year
028pHDAILY MX report only all year
028Solids, total suspendedDAILY MX report only all year
028Oil & GreaseDAILY MX <= 15 mg/L all year
028Carbon, tot organic [TOC]DAILY MX report only all year
028Flow, in conduit or thru treatment plantDAILY MX report only all year
028Solids, total dissolvedDAILY MX report only all year
028Chemical Oxygen Demand [COD]DAILY MX report only all year
032pHDAILY MN report only all year
032pHDAILY MX report only all year
032Solids, total suspendedDAILY MX report only all year
032Oil & GreaseDAILY MX <= 15 mg/L all year
032Carbon, tot organic [TOC]DAILY MX report only all year
032Flow, in conduit or thru treatment plantDAILY MX report only all year
032Solids, total dissolvedDAILY MX report only all year
032Chemical Oxygen Demand [COD]DAILY MX report only all year

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