Dyer Quarry Inc — NPDES permit PA0595748: limits, due date and EPA's record

Industrial or other facility, Colmar, Pennsylvania. NPDES permit PA0595748 expired Mar 23, 2023; its limits still apply. Last 12 months: no values over a limit, 1008 required values missing. Source: EPA ECHO, Oct 22, 2026.

Limits in force (112)

Parameter	Statistic	Limit	Months	Outfall
pH	instantaneous minimum	≥ 6 SU	all year	001A
pH	instantaneous maximum	≤ 9 SU	all year	001A
pH	instantaneous minimum	≥ 6 SU	all year	001A
pH	instantaneous maximum	≤ 9 SU	all year	001A
pH	instantaneous minimum	≥ 6 SU	all year	001A
pH	instantaneous maximum	≤ 9 SU	all year	001A
Solids, total suspended	monthly average	≤ 35 mg/L	all year	001A
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	001A
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	001A
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	001A
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	001A
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	001A
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	001A
pH	instantaneous minimum	≥ 6 SU	all year	002
pH	instantaneous maximum	≤ 9 SU	all year	002
pH	instantaneous minimum	≥ 6 SU	all year	002
pH	instantaneous maximum	≤ 9 SU	all year	002
pH	instantaneous minimum	≥ 6 SU	all year	002
pH	instantaneous maximum	≤ 9 SU	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
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	002
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	002
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	002
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	002
pH	instantaneous minimum	≥ 6 SU	all year	002A
pH	instantaneous maximum	≤ 9 SU	all year	002A
Solids, total suspended	monthly average	≤ 35 mg/L	all year	002A
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	002A
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	002A
Flow, in conduit or thru treatment plant	monthly average	≤ .288 MGD	all year	002A
Flow, in conduit or thru treatment plant	daily maximum	≤ 1.296 MGD	all year	002A
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	002A
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
Solids, total suspended	monthly average	≤ 35 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	003
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	003
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	003
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	003
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	003
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
Solids, total suspended	monthly average	≤ 35 mg/L	all year	004
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	004
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	004
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	004
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	004
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	004
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
Solids, total suspended	monthly average	≤ 35 mg/L	all year	005
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	005
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	005
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	005
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	005
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	005
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
Solids, total suspended	monthly average	≤ 35 mg/L	all year	007
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	007
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	007
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	007
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	007
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	007
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	009
pH	instantaneous maximum	≤ 9 SU	all year	009
pH	instantaneous minimum	≥ 6 SU	all year	009
pH	instantaneous maximum	≤ 9 SU	all year	009
pH	instantaneous minimum	≥ 6 SU	all year	009
pH	instantaneous maximum	≤ 9 SU	all year	009
Solids, total suspended	monthly average	≤ 35 mg/L	all year	009
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	009
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	009
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	009
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	009
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	009
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	009
pH	instantaneous minimum	≥ 6 SU	all year	010
pH	instantaneous maximum	≤ 9 SU	all year	010
pH	instantaneous minimum	≥ 6 SU	all year	010
pH	instantaneous maximum	≤ 9 SU	all year	010
pH	instantaneous minimum	≥ 6 SU	all year	010
pH	instantaneous maximum	≤ 9 SU	all year	010
Solids, total suspended	monthly average	≤ 35 mg/L	all year	010
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	010
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	010
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	010
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	010
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	010
Alkalinity - Acidity [as CaCO3]	instantaneous minimum	≥ 0 mg/L	all year	010

Your permit document is the final word. As JSON: /api/v1/permits/PA0595748 · MCP: https://passage-data.com/mcp