Garrett Limestone Co Inc — NPDES permit PA0234362: limits, due date and EPA's record

Industrial or other facility, Garrett, Pennsylvania. NPDES permit PA0234362, in force until Nov 25, 2027. Last 12 months: no values over a limit, 282 required values missing. Source: EPA ECHO, Oct 22, 2026.

Limits in force (188)

Parameter	Statistic	Limit	Months	Outfall
pH	instantaneous minimum	≥ 6 SU	all year	001
pH	instantaneous minimum	≥ 6 SU	all year	001
pH	instantaneous maximum	≤ 9 SU	all year	001
pH	instantaneous maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 35 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	daily maximum	≤ 70 mg/L	all year	001
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	001
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	001
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	001
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	001
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	001
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	001
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	001
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	001
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	001
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	001
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
pH	instantaneous maximum	≤ 9 SU	all year	003
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	003
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	003
Solids, total suspended	monthly average	≤ 35 mg/L	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	daily maximum	≤ 70 mg/L	all year	003
Solids, total suspended	instantaneous maximum	≤ 90 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
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	003
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	003
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	003
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	003
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	003
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	003
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	003
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	003
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	003
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	003
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	003
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	003
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	003
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
pH	instantaneous maximum	≤ 9 SU	all year	004
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	004
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	004
Solids, total suspended	monthly average	≤ 35 mg/L	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	daily maximum	≤ 70 mg/L	all year	004
Solids, total suspended	instantaneous maximum	≤ 90 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
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	004
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	004
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	004
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	004
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	004
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	004
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	004
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	004
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	004
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	004
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	004
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	004
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	004
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
pH	instantaneous maximum	≤ 9 SU	all year	005
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	005
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	005
Solids, total suspended	monthly average	≤ 35 mg/L	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	daily maximum	≤ 70 mg/L	all year	005
Solids, total suspended	instantaneous maximum	≤ 90 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
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	005
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	005
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	005
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	005
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	005
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	005
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	005
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	005
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	005
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	005
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	005
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	005
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	005
pH	instantaneous minimum	≥ 6 SU	all year	006
pH	instantaneous minimum	≥ 6 SU	all year	006
pH	instantaneous maximum	≤ 9 SU	all year	006
pH	instantaneous maximum	≤ 9 SU	all year	006
pH	instantaneous minimum	≥ 6 SU	all year	006
pH	instantaneous minimum	≥ 6 SU	all year	006
pH	instantaneous maximum	≤ 9 SU	all year	006
pH	instantaneous maximum	≤ 9 SU	all year	006
pH	instantaneous minimum	≥ 6 SU	all year	006
pH	instantaneous minimum	≥ 6 SU	all year	006
pH	instantaneous maximum	≤ 9 SU	all year	006
pH	instantaneous maximum	≤ 9 SU	all year	006
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	006
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	006
Solids, total suspended	monthly average	≤ 35 mg/L	all year	006
Solids, total suspended	monthly average	≤ 35 mg/L	all year	006
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	006
Solids, total suspended	daily maximum	≤ 70 mg/L	all year	006
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	006
Solids, total suspended	instantaneous maximum	≤ 90 mg/L	all year	006
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	006
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	006
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	006
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	006
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	006
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	006
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	006
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	006
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	006
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	006
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	006
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	006
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	006
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	006
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous minimum	≥ 6 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
pH	instantaneous maximum	≤ 9 SU	all year	007
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	007
Alkalinity, total [as CaCO3]	instantaneous maximum	report only (mg/L)	all year	007
Solids, total suspended	monthly average	≤ 35 mg/L	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	daily maximum	≤ 70 mg/L	all year	007
Solids, total suspended	instantaneous maximum	≤ 90 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
Solids, settleable	instantaneous maximum	≤ .5 mL/L	all year	007
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	007
Iron, total [as Fe]	monthly average	≤ 3 mg/L	all year	007
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	007
Iron, total [as Fe]	daily maximum	≤ 6 mg/L	all year	007
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	007
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	007
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	007
Iron, total [as Fe]	instantaneous maximum	≤ 7 mg/L	all year	007
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	007
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	007
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	007
Osmotic pressure, total, unf whl wtr	instantaneous maximum	report only (mOsm/kg)	all year	007

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