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Pressed And Blown Glass, major discharger, Shelby, North Carolina. NPDES permit NC0004685 expired Jun 30, 2026; its limits still apply. Last 12 months: no values over a limit, 40 required values missing, 11 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jun–Sep |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jun–Sep |
| Conductivity | daily maximum | report only (umho/cm) | Jun–Sep |
| Conductivity | daily maximum | report only (umho/cm) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Conductivity | daily maximum | report only (umho/cm) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Conductivity | daily maximum | report only (umho/cm) | Jun–Sep |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jun–Sep |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Oxygen, dissolved [DO] | daily maximum | report only (mg/L) | Jun–Sep |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 20 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 217 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 325.5 lb/d | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | 30-day average | ≤ 20 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 146 mg/L | all year |
| Oil & Grease | 30-day average | ≤ 10 mg/L | all year |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 2.5 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 6 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9 mg/L | Apr–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9 mg/L | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 27.1 lb/d | Apr–Oct |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 65 lb/d | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 97.5 lb/d | Apr–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 97.5 lb/d | Jan, Feb, Mar, Nov, Dec |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | report only (#/100mL) | all year |
| Flow, in conduit or thru treatment plant | 30-day average | ≤ 1.3 MGD | all year |
| Chlorine, total residual | daily maximum | ≤ 17 ug/L | all year |
Cited limits by parameter: North Carolina's rules and the federal ones.
Same industry: the 9 Stone, Clay, Glass and Concrete Products permits in North Carolina.
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On EPA ECHO: Facility report · DMR history
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