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

Befesa Zinc US Inc.

Industrial or other facility, Monaca, Pennsylvania. NPDES permit PA0254584, in force until Mar 31, 2031. Last 12 months: over a limit 6 times (last June 2026), 28 required values missing, 1 of 10 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (28 values), form Y yearly
Last report on file
June 2026
Oct 2024 – Sep 2025
5 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
March 2026Selenium, total [as Se], monthly average.089 mg/L≤ .07 mg/L27%
April 2026Selenium, total [as Se], monthly average.08 mg/L≤ .07 mg/L14%
April 2026Solids, total suspended, monthly average32.6 mg/L≤ 30 mg/L9%
April 2026pH, instantaneous maximum9.65 SU≤ 9 SU—
May 2026Solids, total suspended, monthly average37 mg/L≤ 30 mg/L23%
June 2026Solids, total suspended, monthly average35 mg/L≤ 30 mg/L17%

Limits in force (32)

ParameterStatisticLimitMonths
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 100 mg/Lall year
Arsenic, total [as As]monthly averagereport only (mg/L)all year
Arsenic, total [as As]daily maximumreport only (mg/L)all year
Iron, total [as Fe]monthly average≤ 5 mg/Lall year
Iron, total [as Fe]daily maximum≤ 12 mg/Lall year
Lead, total [as Pb]monthly averagereport only (mg/L)all year
Lead, total [as Pb]daily maximumreport only (mg/L)all year
Manganese, total [as Mn]monthly average≤ .14 mg/Lall year
Manganese, total [as Mn]daily maximum≤ .22 mg/Lall year
Zinc, total [as Zn]monthly average≤ .6 mg/Lall year
Zinc, total [as Zn]daily maximum≤ 1 mg/Lall year
Antimony, total [as Sb]monthly average≤ .166 mg/Lall year
Antimony, total [as Sb]daily maximum≤ .183 mg/Lall year
Antimony, total [as Sb]monthly average≤ .3 lb/dall year
Antimony, total [as Sb]daily maximum≤ .33 lb/dall year
Aluminum, total [as Al]monthly average≤ 3.8 mg/Lall year
Aluminum, total [as Al]daily maximum≤ 7 mg/Lall year
Selenium, dissolved [as Se]monthly averagereport only (mg/L)all year
Selenium, dissolved [as Se]daily maximumreport only (mg/L)all year
Selenium, total [as Se]monthly average≤ .07 mg/Lall year
Selenium, total [as Se]daily maximum≤ .14 mg/Lall year
Hexachlorobutadienemonthly averagereport only (ug/L)all year
Hexachlorobutadienedaily maximumreport only (ug/L)all 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
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all year
Perfluorooctanesulfonatedaily maximumreport only (ng/L)all year
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all year
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/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

· 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/PA0254584 · MCP: https://passage-data.com/mcp