Heidelberg Materials US Cement LLC — NPDES permit PA0225746: limits, due date and EPA's record

Industrial or other facility, Nazareth, Pennsylvania. NPDES permit PA0225746 expired Mar 4, 2026; its limits still apply. Last 12 months: no values over a limit, 96 required values missing. Source: EPA ECHO, Oct 22, 2026.

Limits in force (34)

Parameter	Statistic	Limit	Months	Outfall
Turbidity	monthly average	≤ 40 NTU	all year	001
Turbidity	daily maximum	≤ 40 NTU	all year	001
Turbidity	instantaneous maximum	≤ 40 NTU	all year	001
pH	instantaneous minimum	≥ 6 SU	all year	001
pH	instantaneous maximum	≤ 9 SU	all year	001
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	001
Acidity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	001
Solids, total suspended	monthly average	≤ 35 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	001
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	001
Oil & Grease	instantaneous maximum	report only (mg/L)	all year	001
Flow, in conduit or thru treatment plant	monthly average	≤ 1 MGD	all year	001
Flow, in conduit or thru treatment plant	daily maximum	≤ 3 MGD	all year	001
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	001
Mercury, total [as Hg]	monthly average	≤ .08 ug/L	all year	001
Mercury, total [as Hg]	daily maximum	≤ .16 ug/L	all year	001
Mercury, total [as Hg]	instantaneous maximum	≤ .2 ug/L	all year	001
pH	instantaneous minimum	≥ 6 SU	all year	002
pH	instantaneous maximum	≤ 9 SU	all year	002
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	002
Acidity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	002
Solids, total suspended	monthly average	≤ 35 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	002
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	002
Oil & Grease	instantaneous maximum	report only (mg/L)	all year	002
Chloride [as Cl]	instantaneous maximum	report only (mg/L)	all year	002
Sulfate, total [as SO4]	instantaneous maximum	report only (mg/L)	all year	002
Thallium, total [as Tl]	monthly average	≤ .243 ug/L	all year	002
Thallium, total [as Tl]	daily maximum	≤ .486 ug/L	all year	002
Thallium, total [as Tl]	instantaneous maximum	≤ .608 ug/L	all year	002
Flow, in conduit or thru treatment plant	monthly average	≤ .3 MGD	all year	002
Flow, in conduit or thru treatment plant	daily maximum	≤ 1.15 MGD	all year	002
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	002
Solids, total dissolved	instantaneous maximum	report only (mg/L)	all year	002

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/PA0225746 · MCP: https://passage-data.com/mcp