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Eramet Marietta Inc

Electrometallurgical Products, major discharger, Marietta, Ohio. NPDES permit OH0004006 expired Aug 31, 2024; its limits still apply. Last 12 months: over a limit 7 times (last May 2026), 24 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 003 form A monthly (14 values), outfall 008 form A monthly (26 values), outfall 602 form A monthly (12 values), outfall 603 form A monthly (16 values), outfall 605 form A monthly (18 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
8 values over a limit, 26 required values missing, 5 of 61 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingOutfallParameterReportedLimitOver by
January 2026003Chlorine, total residual, daily maximum.381≤ .2 mg/L91%
February 2026605Manganese, total [as Mn], monthly average39.56≤ 26.5 kg/d49%
May 2026603Chromium, hexavalent [as Cr], monthly average56.35≤ 50 ug/L13%
May 2026603Manganese, total [as Mn], daily maximum37150≤ 10000 ug/L272%
May 2026603Manganese, total [as Mn], monthly average37150≤ 5000 ug/L643%
May 2026603Solids, total suspended, daily maximum61≤ 50 mg/L22%
May 2026603Solids, total suspended, monthly average61≤ 25 mg/L144%

Limits in force (92)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year003
Temperature, water deg. centigradedaily maximumreport only (deg C)all year003
pHdaily minimum≥ 6.5 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Cadmium, total recoverablemonthly averagereport only (ug/L)all year003
Cadmium, total recoverabledaily maximumreport only (ug/L)all year003
Lead, total recoverablemonthly averagereport only (ug/L)all year003
Lead, total recoverabledaily maximumreport only (ug/L)all 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
Chlorine, total residualdaily maximum≤ .2 mg/Lall year003
Chlorination durationdaily maximum≤ 120 minall year003
pHdaily minimum≥ 6.5 SUall year008
pHdaily maximum≤ 9 SUall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Solids, total suspendeddaily maximum≤ 100 mg/Lall year008
Barium, total recoverablemonthly average≤ 220 ug/Lall year008
Barium, total recoverabledaily maximum≤ 2000 ug/Lall year008
Barium, total recoverablemonthly average≤ .167 kg/dall year008
Barium, total recoverabledaily maximum≤ 1.52 kg/dall year008
Chromium, hexavalent [as Cr]monthly average≤ 11 ug/Lall year008
Chromium, hexavalent [as Cr]daily maximum≤ 16 ug/Lall year008
Chromium, hexavalent [as Cr]monthly average≤ .00833 kg/dall year008
Chromium, hexavalent [as Cr]daily maximum≤ .0122 kg/dall year008
Zinc, total recoverablemonthly average≤ 150 ug/Lall year008
Zinc, total recoverabledaily maximum≤ 150 ug/Lall year008
Zinc, total recoverablemonthly average≤ .114 kg/dall year008
Zinc, total recoverabledaily maximum≤ .114 kg/dall year008
Cadmium, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec008
Cadmium, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec008
Lead, total recoverablemonthly average≤ 9 ug/Lall year008
Lead, total recoverabledaily maximum≤ 170 ug/Lall year008
Lead, total recoverablemonthly average≤ .00682 kg/dall year008
Lead, total recoverabledaily maximum≤ .129 kg/dall year008
Chromium, total recoverablemonthly average≤ 110 ug/Lall year008
Chromium, total recoverabledaily maximum≤ 2200 ug/Lall year008
Chromium, total recoverablemonthly average≤ .0833 kg/dall year008
Chromium, total recoverabledaily maximum≤ 1.67 kg/dall year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec589
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec589
Solids, total suspendedmonthly average≤ 30 mg/Lall year602
Solids, total suspendeddaily maximum≤ 45 mg/Lall year602
Solids, total suspendedmonthly average≤ 11.4 kg/dall year602
Solids, total suspendeddaily maximum≤ 17 kg/dall year602
Coliform, fecal MF, MFC broth, 44.5 Cmonthly geometric mean≤ 1000 #/100mLall year602
Coliform, fecal MF, MFC broth, 44.5 Cdaily maximum≤ 2000 #/100mLall year602
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year602
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year602
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year602
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 40 mg/Lall year602
BOD, carbonaceous [5 day, 20 C]monthly average≤ 9.5 kg/dall year602
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 kg/dall year602
pHdaily minimum≥ 6 SUall year603
pHdaily maximum≤ 9 SUall year603
Solids, total suspendedmonthly average≤ 25 mg/Lall year603
Solids, total suspendeddaily maximum≤ 50 mg/Lall year603
Cyanide, total [as CN]monthly average≤ .25 mg/Lall year603
Cyanide, total [as CN]daily maximum≤ .5 mg/Lall year603
Chromium, hexavalent [as Cr]monthly average≤ 50 ug/Lall year603
Chromium, hexavalent [as Cr]daily maximum≤ 100 ug/Lall year603
Chromium, total [as Cr]monthly average≤ 500 ug/Lall year603
Chromium, total [as Cr]daily maximum≤ 1000 ug/Lall year603
Manganese, total [as Mn]monthly average≤ 5000 ug/Lall year603
Manganese, total [as Mn]daily maximum≤ 10000 ug/Lall year603
Phenolics, total recoverablemonthly average≤ 200 ug/Lall year603
Phenolics, total recoverabledaily maximum≤ 400 ug/Lall year603
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year603
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year603
pHdaily minimum≥ 6 SUall year605
pHdaily maximum≤ 9 SUall year605
Solids, total suspendedmonthly average≤ 124 kg/dall year605
Solids, total suspendeddaily maximum≤ 249 kg/dall year605
Nitrogen, ammonia total [as N]monthly average≤ 30.4 kg/dall year605
Nitrogen, ammonia total [as N]daily maximum≤ 60.9 kg/dall year605
Cyanide, total [as CN]monthly average≤ .135 kg/dall year605
Cyanide, total [as CN]daily maximum≤ .225 kg/dall year605
Chromium, hexavalent [as Cr]monthly average≤ .066 kg/dall year605
Chromium, hexavalent [as Cr]daily maximum≤ .132 kg/dall year605
Chromium, total [as Cr]monthly averagereport only (ug/L)all year605
Chromium, total [as Cr]daily maximumreport only (ug/L)all year605
Chromium, total [as Cr]monthly average≤ .23 kg/dall year605
Chromium, total [as Cr]daily maximum≤ .45 kg/dall year605
Manganese, total [as Mn]monthly average≤ 26.5 kg/dall year605
Manganese, total [as Mn]daily maximum≤ 78.1 kg/dall year605
Phenolics, total recoverablemonthly average≤ .09 kg/dall year605
Phenolics, total recoverabledaily maximum≤ .18 kg/dall year605
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year605
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year605

How strict are these limits?

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

Same industry: the 56 Primary Metal Industries permits in Ohio.

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Your permit document is the final word. As JSON: /api/v1/permits/OH0004006 · MCP: https://passage-data.com/mcp