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Langeloth Metallurgical Co LLC

Industrial or other facility, Langeloth, Pennsylvania. NPDES permit PA0203424, in force until Dec 15, 2027. Last 12 months: no values over a limit, 61 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (40 values), form Q quarterly (1 value)
Renewal application due
Jun 18, 2027 · 180 days before expiry; your permit may set another date
Last report on file
March 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 14 reports late

Limits in force (41)

ParameterStatisticLimitMonths
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
pHinstantaneous maximum≤ 9 SUall year
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 35 mg/Lall year
Solids, total suspendedmonthly average≤ 35 mg/Lall year
Solids, total suspendeddaily maximum≤ 70 mg/Lall year
Solids, total suspendeddaily maximum≤ 70 mg/Lall year
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Sulfate, total [as SO4]instantaneous maximumreport only (mg/L)all year
Iron, total [as Fe]monthly average≤ 1.5 mg/Lall year
Iron, total [as Fe]monthly average≤ 1.5 mg/Lall year
Iron, total [as Fe]daily maximum≤ 3 mg/Lall year
Iron, total [as Fe]daily maximum≤ 3 mg/Lall year
Iron, total [as Fe]instantaneous maximum≤ 3.7 mg/Lall year
Iron, total [as Fe]instantaneous maximum≤ 3.7 mg/Lall year
Manganese, total [as Mn]monthly average≤ 1 mg/Lall year
Manganese, total [as Mn]monthly average≤ 1 mg/Lall year
Manganese, total [as Mn]daily maximum≤ 2 mg/Lall year
Manganese, total [as Mn]daily maximum≤ 2 mg/Lall year
Manganese, total [as Mn]instantaneous maximum≤ 2.5 mg/Lall year
Manganese, total [as Mn]instantaneous maximum≤ 2.5 mg/Lall year
Molybdenum, total [as Mo]instantaneous maximumreport only (mg/L)all year
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year
Aluminum, total [as Al]instantaneous maximum≤ .75 mg/Lall year
Aluminum, total [as Al]instantaneous maximum≤ .75 mg/Lall year
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year

How strict are these limits?

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

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0203424 · MCP: https://passage-data.com/mcp