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

AK Steel Corporation

Cold Finishing Of Steel Shapes, major discharger, Zanesville, Ohio. NPDES permit OH0006858, in force until Jun 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (10 values), outfall 002 form A monthly (12 values), outfall 612 form A monthly (14 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 49 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year001
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
pHdaily minimum≥ 6.5 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year002
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year002
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year002
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Biosolids weight indluding admixturesmonthly averagereport only (dry ton)Dec596
Biosolids weight indluding admixturesdaily maximumreport only (dry ton)Dec596
pHdaily minimumreport only (SU)all year612
pHdaily maximumreport only (SU)all year612
Solids, total suspendedmonthly average≤ 198 kg/dall year612
Solids, total suspendeddaily maximum≤ 461 kg/dall year612
Oil and grease [soxhlet extr.] tot.monthly average≤ 57 kg/dall year612
Oil and grease [soxhlet extr.] tot.daily maximum≤ 79 kg/dall year612
Chromium, total [as Cr]monthly average≤ 2.52 kg/dall year612
Chromium, total [as Cr]daily maximum≤ 6.3 kg/dall year612
Nickel, total [as Ni]monthly average≤ 1.89 kg/dall year612
Nickel, total [as Ni]daily maximum≤ 5.67 kg/dall year612
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)all year612
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)all year612
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year612
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year612
Flow rate, instantaneousmonthly averagereport only (gal/min)all year800
Flow rate, instantaneousdaily maximumreport only (gal/min)all year800
Flow, totalmonthly averagereport only (Mgal)all year800
Flow, totaldaily maximumreport only (Mgal)all year800

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.

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/OH0006858 · MCP: https://passage-data.com/mcp