Passage Data · Check a report · Use it from your AI

Arconic US LLC

Secondary Nonferrous Metals, major discharger, Alcoa, Tennessee. NPDES permit TN0065081, in force until Dec 31, 2027. Last 12 months: no values over a limit, 3 of 46 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 006 form G monthly (11 values), outfall 006 form T quarterly (2 values), outfall 06A form G monthly (18 values), outfall 06E form E monthly (18 values), outfall S03 form B twice a year, outfall SW4 form B twice a year, and 1 more form
Renewal application due
Jul 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 46 reports late

Limits in force (95)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year006
pHmaximum≤ 9 SUall year006
Solids, total suspendeddaily maximum≤ 40 mg/Lall year006
Oil and grease, hexane extr methodmonthly average≤ 10 mg/Lall year006
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall year006
Fluoride, dissolved [as F]daily maximumreport only (mg/L)all year006
Aluminum, total [as Al]daily maximum≤ 76.6 mg/Lall 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
Chlorine, total residualmonthly average≤ .19 mg/Lall year006
Chlorine, total residualdaily maximum≤ .33 mg/Lall year006
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum> 5.8 %all year006
IC25 Static Renewal 7 Day Chronic Pimephalesminimum> 5.8 %all year006
pHminimum≥ 6 SUall year06A
pHmaximum≤ 9 SUall year06A
Solids, total suspendedmonthly average≤ 4125 lb/dall year06A
Nitrogen, ammonia total [as N]monthly average≤ 27.5 lb/dall year06A
Nitrogen, ammonia total [as N]daily maximum≤ 487.3 lb/dall year06A
Fluoride, total [as F]monthly average≤ 1100 lb/dall year06A
Copper, total [as Cu]monthly average≤ 8.25 lb/dall year06A
Lead, total [as Pb]monthly average≤ .476 lb/dall year06A
Lead, total [as Pb]daily maximum≤ 1.02 lb/dall year06A
Zinc, total [as Zn]monthly average≤ 1.54 lb/dall year06A
Zinc, total [as Zn]daily maximum≤ 3.73 lb/dall year06A
Aluminum, total [as Al]monthly average≤ 9.91 lb/dall year06A
Aluminum, total [as Al]daily maximum≤ 22.3 lb/dall year06A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year06A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year06A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year06A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year06A
Chemical Oxygen Demand [COD]monthly average≤ 2750 lb/dall year06A
pHminimum≥ 6 SUall year06E
pHmaximum≤ 9 SUall year06E
Solids, total suspendedmonthly average≤ 5625 lb/dall year06E
Nitrogen, ammonia total [as N]monthly average≤ 37.5 lb/dall year06E
Nitrogen, ammonia total [as N]daily maximum≤ 664.5 lb/dall year06E
Fluoride, total [as F]daily maximum≤ 327 lb/dall year06E
Copper, total [as Cu]monthly average≤ 11.25 lb/dall year06E
Lead, total [as Pb]monthly average≤ .649 lb/dall year06E
Lead, total [as Pb]daily maximum≤ 1.395 lb/dall year06E
Zinc, total [as Zn]monthly average≤ 2.09 lb/dall year06E
Zinc, total [as Zn]daily maximum≤ 5.09 lb/dall year06E
Aluminum, total [as Al]monthly average≤ 13.5 lb/dall year06E
Aluminum, total [as Al]daily maximum≤ 30.5 lb/dall year06E
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year06E
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year06E
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year06E
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year06E
Chemical Oxygen Demand [COD]monthly average≤ 3750 lb/dall year06E
pHmaximumreport only (SU)all yearS03
Solids, total suspendeddaily maximumreport only (mg/L)all yearS03
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all yearS03
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearS03
Cyanide, total [as CN]daily maximumreport only (mg/L)all yearS03
Magnesium, total [as Mg]daily maximumreport only (mg/L)all yearS03
Fluoride, dissolved [as F]daily maximumreport only (mg/L)all yearS03
Iron, total [as Fe]daily maximumreport only (mg/L)all yearS03
Aluminum, total [as Al]daily maximumreport only (mg/L)all yearS03
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearS03
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimumreport only (%)all yearS03
LC50 Static 48Hr Acute Pimephales promelasminimumreport only (%)all yearS03
pHdaily maximumreport only (SU)all yearSW4
Solids, total suspendeddaily maximumreport only (mg/L)all yearSW4
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all yearSW4
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearSW4
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearSW4
Cyanide, total [as CN]daily maximumreport only (mg/L)all yearSW4
Magnesium, total [as Mg]daily maximumreport only (mg/L)all yearSW4
Fluoride, dissolved [as F]daily maximumreport only (mg/L)all yearSW4
Chromium, total [as Cr]daily maximumreport only (mg/L)all yearSW4
Copper, total [as Cu]daily maximumreport only (mg/L)all yearSW4
Zinc, total [as Zn]daily maximumreport only (mg/L)all yearSW4
Aluminum, total [as Al]daily maximumreport only (mg/L)all yearSW4
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearSW4
Chlorine, total residualdaily maximumreport only (mg/L)all yearSW4
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearSW4
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimumreport only (%)all yearSW4
LC50 Static 48Hr Acute Pimephales promelasminimumreport only (%)all yearSW4
pHdaily maximumreport only (SU)all yearSW6
Solids, total suspendeddaily maximumreport only (mg/L)all yearSW6
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all yearSW6
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearSW6
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearSW6
Cyanide, total [as CN]daily maximumreport only (mg/L)all yearSW6
Magnesium, total [as Mg]daily maximumreport only (mg/L)all yearSW6
Fluoride, dissolved [as F]daily maximumreport only (mg/L)all yearSW6
Chromium, total [as Cr]daily maximumreport only (mg/L)all yearSW6
Copper, total [as Cu]daily maximumreport only (mg/L)all yearSW6
Zinc, total [as Zn]daily maximumreport only (mg/L)all yearSW6
Aluminum, total [as Al]daily maximumreport only (mg/L)all yearSW6
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearSW6
Chlorine, total residualdaily maximumreport only (mg/L)all yearSW6
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearSW6
LC50 Static 48Hr Acute Ceriodaphnia dubiaminimumreport only (%)all yearSW6
LC50 Static 48Hr Acute Pimephales promelasminimumreport only (%)all yearSW6

How strict are these limits?

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

Same industry: the 12 Primary Metal Industries permits in Tennessee.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0065081 · MCP: https://passage-data.com/mcp