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Malleable Iron Foundries, Columbia, Pennsylvania. NPDES permit PA0080195 expired May 31, 2026; its limits still apply. Last 12 months: over a limit 2 times (last December 2025), 6 required values missing, 8 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Temperature, water deg. fahrenheit, daily maximum | 64 deg F | ≤ 58 deg F | 10% |
| December 2025 | Temperature, water deg. fahrenheit, daily maximum | 52 deg F | ≤ 50 deg F | 4% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | ≤ 98 deg F | Aug | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 50 deg F | Jan | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 98 deg F | Aug | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 110 deg F | Jun | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 103 deg F | Jun | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 82 deg F | May | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 80 deg F | Apr | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 68 deg F | Nov | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 81 deg F | Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 50 deg F | Dec | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 94 deg F | Sep | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 101 deg F | Jul | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 103 deg F | May | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 71 deg F | Mar | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 86 deg F | Apr | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 58 deg F | Nov | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 50 deg F | Feb | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 75 deg F | Oct | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 87 deg F | Sep | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 50 deg F | Jan | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 80 deg F | Apr | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 86 deg F | Apr | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 50 deg F | Feb | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 68 deg F | Nov | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 75 deg F | Oct | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 81 deg F | Oct | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 98 deg F | Aug | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 94 deg F | Sep | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 58 deg F | Nov | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 87 deg F | Sep | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 98 deg F | Aug | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 110 deg F | Jun | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 103 deg F | Jun | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 50 deg F | Dec | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 82 deg F | May | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 103 deg F | May | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 101 deg F | Jul | 002 |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 71 deg F | Mar | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 003 |
| pH | daily maximum | report only (SU) | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 003 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 003 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 003 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 003 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 003 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 003 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 003 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 003 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 003 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 004 |
| pH | daily maximum | report only (SU) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 004 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 004 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 004 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 004 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 004 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 004 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 004 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 004 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 004 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 004 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 103 |
| pH | daily maximum | report only (SU) | all year | 103 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 103 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 103 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 103 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 103 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 103 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 103 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 103 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 103 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 103 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 103 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 103 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 103 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 103 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 103 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 103 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 200 |
| pH | daily maximum | report only (SU) | all year | 200 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 200 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 200 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 200 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 200 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 200 |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year | 200 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 200 |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year | 200 |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year | 200 |
| Iron, dissolved [as Fe] | daily maximum | report only (mg/L) | all year | 200 |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year | 200 |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year | 200 |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year | 200 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 200 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 200 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 85 Primary Metal Industries permits in Pennsylvania.
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