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Eureka Stone Quarry Inc

Industrial or other facility, Chalfont, Pennsylvania. NPDES permit PA0118389 expired Dec 28, 2024; its limits still apply. Last 12 months: no values over a limit, 145 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A quarterly (18 values), form Y yearly
Last report on file
None
Oct 2024 – Sep 2025
0 values over a limit, 162 required values missing, 0 of 13 reports late

Limits in force (19)

ParameterStatisticLimitMonths
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Alkalinity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 35 mg/Lall year
Solids, total suspendeddaily maximum≤ 70 mg/Lall year
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year
Solids, total suspendedmonthly average≤ 295 lb/dall year
Solids, total suspendeddaily maximum≤ 590 lb/dall year
Oil & Greaseinstantaneous maximumreport only (mg/L)all year
Aluminum, total [as Al]monthly average≤ 750 ug/Lall year
Aluminum, total [as Al]daily maximum≤ 754 ug/Lall year
Aluminum, total [as Al]instantaneous maximum≤ 754 ug/Lall year
Flow, in conduit or thru treatment plantmonthly average≤ 3.5 MGDall year
Flow, in conduit or thru treatment plantinstantaneous maximum≤ 10.32 MGDall year
Alkalinity - Acidity [as CaCO3]instantaneous minimum≥ 0 mg/Lall year
Mercury, total [as Hg]monthly average≤ .05 ug/Lall year
Mercury, total [as Hg]daily maximum≤ .078 ug/Lall year
Mercury, total [as Hg]instantaneous maximum≤ .13 ug/Lall year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0118389 · MCP: https://passage-data.com/mcp