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Laurel Aggregates of Delaware LLC

Industrial or other facility, Smithfield, Pennsylvania. NPDES permit PA0250643, in force until Jun 30, 2031. Last 12 months: no values over a limit, 300 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 58 days after each period: outfall 001 form A quarterly, outfall 002 form A quarterly, outfall 003 form A quarterly, outfall 004 form A quarterly, outfall 005 form A quarterly
Last report on file
March 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 15 of 75 reports late

Limits in force (100)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year001
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 35 mg/Lall year001
Solids, total suspendeddaily maximum≤ 70 mg/Lall year001
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year001
Iron, total [as Fe]monthly average≤ 2.8 mg/Lall year001
Iron, total [as Fe]daily maximum≤ 5.6 mg/Lall year001
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year001
Manganese, total [as Mn]monthly average≤ 1.93 mg/Lall year001
Manganese, total [as Mn]daily maximum≤ 3.86 mg/Lall year001
Manganese, total [as Mn]instantaneous maximum≤ 4.82 mg/Lall year001
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year001
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year001
Aluminum, total [as Al]instantaneous maximum≤ .75 mg/Lall year001
Selenium, total [as Se]instantaneous maximumreport only (ug/L)all year001
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year001
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year001
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year002
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year002
Solids, total suspendedmonthly average≤ 35 mg/Lall year002
Solids, total suspendeddaily maximum≤ 70 mg/Lall year002
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year002
Iron, total [as Fe]monthly average≤ 2.8 mg/Lall year002
Iron, total [as Fe]daily maximum≤ 5.6 mg/Lall year002
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year002
Manganese, total [as Mn]monthly average≤ 1.93 mg/Lall year002
Manganese, total [as Mn]daily maximum≤ 3.86 mg/Lall year002
Manganese, total [as Mn]instantaneous maximum≤ 4.82 mg/Lall year002
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year002
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year002
Aluminum, total [as Al]instantaneous maximum≤ .75 mg/Lall year002
Selenium, total [as Se]instantaneous maximumreport only (ug/L)all year002
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year002
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year002
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year003
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year003
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year003
Solids, total suspendedmonthly average≤ 35 mg/Lall year003
Solids, total suspendeddaily maximum≤ 70 mg/Lall year003
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year003
Iron, total [as Fe]monthly average≤ 2.8 mg/Lall year003
Iron, total [as Fe]daily maximum≤ 5.6 mg/Lall year003
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year003
Manganese, total [as Mn]monthly average≤ 1.93 mg/Lall year003
Manganese, total [as Mn]daily maximum≤ 3.86 mg/Lall year003
Manganese, total [as Mn]instantaneous maximum≤ 4.82 mg/Lall year003
Aluminum, total [as Al]monthly average≤ .75 mg/Lall year003
Aluminum, total [as Al]daily maximum≤ .75 mg/Lall year003
Aluminum, total [as Al]instantaneous maximum≤ .75 mg/Lall year003
Selenium, total [as Se]instantaneous maximumreport only (ug/L)all year003
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year003
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year003
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year004
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year004
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year004
Solids, total suspendedmonthly average≤ 35 mg/Lall year004
Solids, total suspendeddaily maximum≤ 70 mg/Lall year004
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year004
Iron, total [as Fe]monthly average≤ 3 mg/Lall year004
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year004
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year004
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year004
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year004
Manganese, total [as Mn]instantaneous maximum≤ 5 mg/Lall year004
Aluminum, total [as Al]monthly average≤ .9 mg/Lall year004
Aluminum, total [as Al]daily maximum≤ 1.8 mg/Lall year004
Aluminum, total [as Al]instantaneous maximum≤ 2.2 mg/Lall year004
Selenium, total [as Se]instantaneous maximumreport only (ug/L)all year004
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year004
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year004
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year005
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 9 SUall year005
Alkalinity, total [as CaCO3]instantaneous minimumreport only (mg/L)all year005
Acidity, total [as CaCO3]instantaneous maximumreport only (mg/L)all year005
Solids, total suspendedmonthly average≤ 35 mg/Lall year005
Solids, total suspendeddaily maximum≤ 70 mg/Lall year005
Solids, total suspendedinstantaneous maximum≤ 90 mg/Lall year005
Iron, total [as Fe]monthly average≤ 3 mg/Lall year005
Iron, total [as Fe]daily maximum≤ 6 mg/Lall year005
Iron, total [as Fe]instantaneous maximum≤ 7 mg/Lall year005
Manganese, total [as Mn]monthly average≤ 2 mg/Lall year005
Manganese, total [as Mn]daily maximum≤ 4 mg/Lall year005
Manganese, total [as Mn]instantaneous maximum≤ 5 mg/Lall year005
Aluminum, total [as Al]monthly average≤ .9 mg/Lall year005
Aluminum, total [as Al]daily maximum≤ 1.8 mg/Lall year005
Aluminum, total [as Al]instantaneous maximum≤ 2.2 mg/Lall year005
Selenium, total [as Se]instantaneous maximumreport only (ug/L)all year005
Flow, in conduit or thru treatment plantinstantaneous maximumreport only (gal/min)all year005
Alkalinity - Acidity [as CaCO3]instantaneous minimumreport only (mg/L)all year005

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/PA0250643 · MCP: https://passage-data.com/mcp