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General Medical & Surgical Hospitals, Pascoag, Rhode Island. NPDES permit RI0100129 expired Dec 31, 2014; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 50 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 50 lb/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | weekly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 30 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 50 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Solids, settleable | monthly average | report only (mL/L) | all year |
| Solids, settleable | weekly average | report only (mL/L) | all year |
| Solids, settleable | daily maximum | report only (mL/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.6 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.6 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 10.6 mg/L | May–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Cyanide, total [as CN] | monthly average | ≤ 10 ug/L | all year |
| Cyanide, total [as CN] | monthly average | report only (ug/L) | all year |
| Cyanide, total [as CN] | daily maximum | ≤ 17.6 ug/L | all year |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year |
| Cadmium, total [as Cd] | monthly average | ≤ .5 ug/L | all year |
| Cadmium, total [as Cd] | monthly average | report only (ug/L) | all year |
| Cadmium, total [as Cd] | daily maximum | ≤ .5 ug/L | all year |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | monthly average | ≤ 3 ug/L | all year |
| Copper, total [as Cu] | monthly average | report only (ug/L) | all year |
| Copper, total [as Cu] | monthly average | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | ≤ 3.03 ug/L | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | monthly average | ≤ 3 ug/L | all year |
| Lead, total [as Pb] | monthly average | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | ≤ 11.18 ug/L | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Nickel, total [as Ni] | monthly average | ≤ 12.9 ug/L | all year |
| Nickel, total [as Ni] | daily maximum | ≤ 116.2 ug/L | all year |
| Zinc, total [as Zn] | monthly average | ≤ 29.61 ug/L | all year |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | all year |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 29.61 ug/L | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | all year |
| Aluminum, total [as Al] | monthly average | ≤ 69.6 ug/L | all year |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | all year |
| Aluminum, total [as Al] | daily maximum | ≤ 600 ug/L | all year |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | monthly average | ≤ 9.6 ug/L | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | monthly average | report only (ug/L) | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | ≤ 444 ug/L | all year |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year |
| Ultraviolet light intensity | monthly average minimum | report only (mW/cm2) | all year |
| Ultraviolet light intensity | weekly average | report only (mW/cm2) | all year |
| Ultraviolet light intensity | daily maximum | report only (mW/cm2) | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .12 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Ultraviolet light transmittance | monthly average minimum | report only (%) | all year |
| Ultraviolet light transmittance | weekly average | report only (%) | all year |
| Ultraviolet light transmittance | daily maximum | report only (%) | all year |
| Coliform, fecal general | monthly geometric mean | ≤ 200 MPN/100mL | all year |
| Coliform, fecal general | weekly geometric mean | ≤ 400 MPN/100mL | all year |
| Coliform, fecal general | daily maximum | ≤ 400 MPN/100mL | all year |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year |
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | minimum | ≥ 100 % | all year |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | minimum | ≥ 100 % | all year |
Cited limits by parameter: Rhode Island's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/RI0100129 · MCP: https://passage-data.com/mcp