Constellium Muscle Shoals, LLC

NPDES permit AL0000035 · Major NON-POTW · effective, expires 2029-05-31 · 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 75 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 (105)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Arsenic, total recoverableDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Cyanide, free availableDAILY MX report only all year
001Mercury, total recoverableDAILY MX report only all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
004Temperature, water deg. fahrenheitDAILY MX <= 90 deg F Jun, Jul, Aug, Sep
004Temperature, water deg. fahrenheitDAILY MX <= 90 deg F Jan, Feb, Mar, Apr, May, Oct, Nov, Dec
004Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
004pHDAILY MN report only all year
004pHDAILY MX report only all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 45 mg/L all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Nitrogen, ammonia total [as N]MO AVG <= 1.4 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
004Nitrogen, ammonia total [as N]MO AVG <= 1.1 mg/L Jan, Feb, Mar, Apr, Dec
004Nitrogen, ammonia total [as N]DAILY MX <= 2.1 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
004Nitrogen, ammonia total [as N]DAILY MX <= 1.65 mg/L Jan, Feb, Mar, Apr, Dec
004Nitrogen, nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Nitrogen, Kjeldahl, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep
004Arsenic, total recoverableDAILY MX report only 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
004Chlorine, total residualDAILY MX <= .019 mg/L all year
004Cyanide, free availableDAILY MX <= .022 mg/L all year
004Toxicity [acute], Ceriodaphnia dubiaMO AVG <= 0 pass=0;fail=1 all year
004Toxicity [acute], Pimephales promelas [Fathead Minnow]MO AVG <= 0 pass=0;fail=1 all year
004Mercury, total recoverableDAILY MX report only all year
004Flow, augmented waterDAILY MN >= 2 MGD May, Jun, Jul, Aug, Sep, Oct, Nov
004Flow, augmented waterDAILY MN >= 1.5 MGD Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 9 mg/L Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]MO AVG <= 6 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
004BOD, carbonaceous [5 day, 20 C]DAILY MX <= 13.5 mg/L Jan, Feb, Mar, Apr, Dec
004BOD, carbonaceous [5 day, 20 C]DAILY MX <= 9 mg/L May, Jun, Jul, Aug, Sep, Oct, Nov
004pH range excursions, > 60 minutesMO MAX <= 0 occur/mo all year
004pH range excursions, monthly total accumMO MAX <= 446 min 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
006Arsenic, total recoverableDAILY MX report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Cyanide, free availableDAILY MX report only all year
006Mercury, total recoverableDAILY MX report only all year
006BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
006Chemical Oxygen Demand [COD]DAILY MX report only all year
007pHDAILY MN report only all year
007pHDAILY MX report only all year
007Solids, total suspendedMO AVG report only all year
007Solids, total suspendedDAILY MX report only all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Nitrogen, ammonia total [as N]MO AVG report only all year
007Nitrogen, ammonia total [as N]DAILY MX report only all year
007Arsenic, total recoverableDAILY MX report only all year
007Copper, total recoverableMO AVG report only all year
007Copper, total recoverableDAILY MX report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Cyanide, free availableMO AVG report only all year
007Cyanide, free availableDAILY MX <= .022 mg/L all year
007Mercury, total recoverableDAILY MX report only all year
007BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
007BOD, carbonaceous [5 day, 20 C]DAILY MX report only all year
04AChromium, hexavalent [as Cr]MO AVG report only all year
04AChromium, hexavalent [as Cr]DAILY MX report only all year
04AFlow, in conduit or thru treatment plantMO AVG report only all year
04AFlow, in conduit or thru treatment plantDAILY MX report only all year
04EpHDAILY MN report only all year
04EpHDAILY MX report only all year
04ESolids, total suspendedMO AVG report only all year
04ESolids, total suspendedDAILY MX report only all year
04EOil & GreaseMO AVG report only all year
04EOil & GreaseDAILY MX report only all year
04ENitrogen, ammonia total [as N]MO AVG <= 29.44 lb/d all year
04ENitrogen, ammonia total [as N]DAILY MX <= 66.98 lb/d all year
04ELead, total [as Pb]MO AVG <= .065 lb/d all year
04ELead, total [as Pb]DAILY MX <= .14 lb/d all year
04EZinc, total [as Zn]MO AVG <= .21 lb/d all year
04EZinc, total [as Zn]DAILY MX <= .51 lb/d all year
04EAluminum, total [as Al]MO AVG <= 1.36 lb/d all year
04EAluminum, total [as Al]DAILY MX <= 3.07 lb/d all year
04EFlow, in conduit or thru treatment plantMO AVG report only all year
04EFlow, in conduit or thru treatment plantDAILY MX report only all year
04FpHDAILY MN >= 6 SU all year
04FpHDAILY MX <= 9 SU all year
04FSolids, total suspendedMO AVG <= 273.88 lb/d all year
04FSolids, total suspendedDAILY MX <= 569.32 lb/d all year
04FOil & GreaseMO AVG <= 166.52 lb/d all year
04FOil & GreaseDAILY MX <= 277.67 lb/d all year
04FCyanide, total [as CN]MO AVG <= .85 lb/d all year
04FCyanide, total [as CN]DAILY MX <= 2.06 lb/d all year
04FChromium, total [as Cr]MO AVG <= 1.27 lb/d all year
04FChromium, total [as Cr]DAILY MX <= 3.11 lb/d all year
04FZinc, total [as Zn]MO AVG <= 4.28 lb/d all year
04FZinc, total [as Zn]DAILY MX <= 10.24 lb/d all year
04FAluminum, total [as Al]MO AVG <= 20.9 lb/d all year
04FAluminum, total [as Al]DAILY MX <= 43.5 lb/d all year
04FFlow, in conduit or thru treatment plantMO AVG report only all year
04FFlow, in conduit or thru treatment plantDAILY MX report only all year
04FE. coliMO AVG <= 700 #/100mL all year
04FE. coliDAILY MX <= 3200 #/100mL 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