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Sibelco North America

Minerals, Ground Or Treated, Bakersville, North Carolina. NPDES permit NC0085839 expired Feb 29, 2016; its limits still apply. Last 12 months: no values over a limit, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 30 days after each period: form M monthly (17 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 2 of 12 reports late

Limits in force (17)

ParameterStatisticLimitMonths
Turbiditydaily maximumreport only (NTU)all year
Turbiditydaily maximumreport only (NTU)all year
Turbiditydaily maximumreport only (NTU)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 10 SUall year
pHdaily maximumreport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspended30-day average≤ 417 lb/dall year
Solids, total suspendeddaily maximum≤ 834 lb/dall year
Solids, settleabledaily maximumreport only (mL/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Fluoride, total [as F]7-day average≤ 384 lb/dall year
Fluoride, total [as F]daily maximum≤ 768 lb/dall year
Fluoride, total [as F]daily maximumreport only (mg/L)all year
Fluoride, total [as F]daily maximumreport only (mg/L)all year
Flow, in conduit or thru treatment plant30-day average≤ 2 MGDall year
Chlorine, total residualdaily maximum≤ 28 ug/Lall year

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

Same industry: the 9 Stone, Clay, Glass and Concrete Products permits in North Carolina.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NC0085839 · MCP: https://passage-data.com/mcp