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Electron Tubes, major discharger, Lancaster, Pennsylvania. NPDES permit PA0008508 expired Jun 30, 2026; its limits still apply. Last 12 months: no values over a limit, 336 required values missing, 24 of 34 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | instantaneous maximum | ≤ 30 mg/L | all year | 001 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | quarterly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | quarterly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 2 mg/L | all year | 001 |
| Phosphorus, total [as P] | daily maximum | ≤ 4 mg/L | all year | 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 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 101 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 31 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 101 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 101 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 101 |
| Cyanide, total [as CN] | monthly average | ≤ .65 mg/L | all year | 101 |
| Cyanide, total [as CN] | daily maximum | ≤ 1.2 mg/L | all year | 101 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) | all year | 101 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | all year | 101 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 101 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 101 |
| Cadmium, total [as Cd] | monthly average | ≤ .26 mg/L | all year | 101 |
| Cadmium, total [as Cd] | daily maximum | ≤ .69 mg/L | all year | 101 |
| Cadmium, total [as Cd] | monthly average | report only (lb/d) | all year | 101 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 101 |
| Chromium, total [as Cr] | monthly average | ≤ 1.71 mg/L | all year | 101 |
| Chromium, total [as Cr] | daily maximum | ≤ 2.77 mg/L | all year | 101 |
| Chromium, total [as Cr] | monthly average | report only (lb/d) | all year | 101 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 101 |
| Copper, total [as Cu] | monthly average | ≤ 2.07 mg/L | all year | 101 |
| Copper, total [as Cu] | daily maximum | ≤ 3.38 mg/L | all year | 101 |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year | 101 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year | 101 |
| Lead, total [as Pb] | monthly average | ≤ .43 mg/L | all year | 101 |
| Lead, total [as Pb] | daily maximum | ≤ .69 mg/L | all year | 101 |
| Lead, total [as Pb] | monthly average | report only (lb/d) | all year | 101 |
| Lead, total [as Pb] | daily maximum | report only (lb/d) | all year | 101 |
| Nickel, total [as Ni] | monthly average | ≤ 2.38 mg/L | all year | 101 |
| Nickel, total [as Ni] | daily maximum | ≤ 3.98 mg/L | all year | 101 |
| Nickel, total [as Ni] | monthly average | report only (lb/d) | all year | 101 |
| Nickel, total [as Ni] | daily maximum | report only (lb/d) | all year | 101 |
| Silver, total [as Ag] | monthly average | ≤ .24 mg/L | all year | 101 |
| Silver, total [as Ag] | daily maximum | ≤ .43 mg/L | all year | 101 |
| Silver, total [as Ag] | monthly average | report only (lb/d) | all year | 101 |
| Silver, total [as Ag] | daily maximum | report only (lb/d) | all year | 101 |
| Zinc, total [as Zn] | monthly average | ≤ 1.48 mg/L | all year | 101 |
| Zinc, total [as Zn] | daily maximum | ≤ 2.61 mg/L | all year | 101 |
| Zinc, total [as Zn] | monthly average | report only (lb/d) | all year | 101 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 101 |
| Bromide [as Br] | daily maximum | report only (mg/L) | all year | 101 |
| Organics, total toxic [TTO] | daily maximum | ≤ 2.13 mg/L | all year | 101 |
| Organics, total toxic [TTO] | annual average | report only (lb/d) | all year | 101 |
| Organics, total toxic [TTO] | daily maximum | report only (lb/d) | all year | 101 |
| Temperature, water deg. fahrenheit | monthly average | ≤ 110 deg F | all year | 201 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 201 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 15 Electronic and Other Electrical Equipment permits in Pennsylvania.
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