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

Warsaw Black Oxide, Inc.

Plating And Polishing, major discharger, Burket, Indiana. NPDES permit IN0004278, in force until Dec 31, 2030. Last 12 months: over a limit 25 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: form A monthly (44 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 2 required values missing, 1 of 12 reports late

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

All 25 values over a limit
Period endingParameterReportedLimitOver by
October 2025Zinc, total recoverable, daily maximum.814 mg/L≤ .66 mg/L23%
December 2025Chloride [as Cl], daily maximum761 mg/L≤ 586 mg/L30%
December 2025Chloride [as Cl], monthly average533 mg/L≤ 370 mg/L44%
December 2025Zinc, total recoverable, daily maximum1.249 lb/d≤ .28 lb/d346%
December 2025Zinc, total recoverable, daily maximum6.77 mg/L≤ .66 mg/L926%
December 2025Zinc, total recoverable, monthly average.27 lb/d≤ .12 lb/d125%
December 2025Zinc, total recoverable, monthly average1.406 mg/L≤ .28 mg/L402%
February 2026Zinc, total recoverable, daily maximum.202 lb/d≤ .19 lb/d6%
February 2026Zinc, total recoverable, daily maximum1.45 mg/L≤ .66 mg/L120%
February 2026Zinc, total recoverable, monthly average.43 mg/L≤ .28 mg/L54%
March 2026Zinc, total recoverable, daily maximum.225 lb/d≤ .19 lb/d18%
March 2026Zinc, total recoverable, daily maximum1.27 mg/L≤ .66 mg/L92%
March 2026Zinc, total recoverable, monthly average.418 mg/L≤ .28 mg/L49%
April 2026Zinc, total recoverable, daily maximum.817 lb/d≤ .19 lb/d330%
April 2026Zinc, total recoverable, daily maximum3.59 mg/L≤ .66 mg/L444%
April 2026Zinc, total recoverable, monthly average.099 lb/d≤ .08 lb/d24%
April 2026Zinc, total recoverable, monthly average.469 mg/L≤ .28 mg/L68%
June 2026pH, daily maximum9.8 SU≤ 9 SU—
July 2026Zinc, total recoverable, daily maximum.438 lb/d≤ .19 lb/d131%
July 2026Zinc, total recoverable, daily maximum1.77 mg/L≤ .66 mg/L168%
July 2026Zinc, total recoverable, monthly average.1 lb/d≤ .08 lb/d25%
July 2026Zinc, total recoverable, monthly average.417 mg/L≤ .28 mg/L49%
August 2026Zinc, total recoverable, daily maximum.227 lb/d≤ .19 lb/d19%
August 2026Zinc, total recoverable, daily maximum1.27 mg/L≤ .66 mg/L92%
August 2026Zinc, total recoverable, monthly average.301 mg/L≤ .28 mg/L8%

Limits in force (44)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 10 mg/Lall year
Solids, total suspendeddaily maximum≤ 15 mg/Lall year
Solids, total suspendedmonthly average≤ 2.92 lb/dall year
Solids, total suspendeddaily maximum≤ 4.38 lb/dall year
Oil and grease, hexane extr methodmonthly average≤ 10 mg/Lall year
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall year
Oil and grease, hexane extr methodmonthly average≤ 2.92 lb/dall year
Oil and grease, hexane extr methoddaily maximum≤ 4.38 lb/dall year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Chloride [as Cl]monthly averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Chloride [as Cl]monthly averagereport only (lb/d)all year
Chloride [as Cl]daily maximumreport only (lb/d)all year
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year
Fluoride, total [as F]monthly averagereport only (mg/L)all year
Fluoride, total [as F]daily maximumreport only (mg/L)all year
Fluoride, total [as F]monthly averagereport only (lb/d)all year
Fluoride, total [as F]daily maximumreport only (lb/d)all year
Nickel, total recoverablemonthly average≤ .16 mg/Lall year
Nickel, total recoverabledaily maximum≤ .4 mg/Lall year
Nickel, total recoverablemonthly average≤ .05 lb/dall year
Nickel, total recoverabledaily maximum≤ .12 lb/dall year
Zinc, total recoverablemonthly average≤ .28 mg/Lall year
Zinc, total recoverabledaily maximum≤ .66 mg/Lall year
Zinc, total recoverablemonthly average≤ .08 lb/dall year
Zinc, total recoverabledaily maximum≤ .19 lb/dall year
Chromium, total recoverablemonthly average≤ .47 mg/Lall year
Chromium, total recoverabledaily maximum≤ .77 mg/Lall year
Chromium, total recoverablemonthly average≤ .14 lb/dall year
Chromium, total recoverabledaily maximum≤ .22 lb/dall year
Copper, total recoverablemonthly average≤ .046 mg/Lall year
Copper, total recoverabledaily maximum≤ .088 mg/Lall year
Copper, total recoverablemonthly average≤ .013 lb/dall year
Copper, total recoverabledaily maximum≤ .026 lb/dall year
Chromium, hexavalent dissolved [as Cr]monthly average≤ .01 mg/Lall year
Chromium, hexavalent dissolved [as Cr]daily maximum≤ .02 mg/Lall year
Chromium, hexavalent dissolved [as Cr]monthly average≤ .003 lb/dall year
Chromium, hexavalent dissolved [as Cr]daily maximum≤ .006 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Total toxic organics [TTO] [40 CFR433]daily maximum≤ 2.13 mg/Lall year
Flow, totalmonthly totalreport only (Mgal/mo)all year

How strict are these limits?

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

Same industry: the 39 Fabricated Metal Products permits in Indiana.

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/IN0004278 · MCP: https://passage-data.com/mcp