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Industrial Organic Chemicals, major discharger, St. Croix, the U.S. Virgin Islands. NPDES permit VI0050024 expired Feb 28, 2018; its limits still apply. Last 12 months: no values over a limit, 11 of 130 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | ≤ 32 deg C | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | ≤ 32 deg C | all year | 001 |
| Oxygen, dissolved [DO] | minimum | ≥ 5 mg/L | all year | 001 |
| pH | minimum | ≥ 6.7 SU | all year | 001 |
| pH | maximum | ≤ 8.5 SU | all year | 001 |
| Nitrogen, total [as N] | maximum | report only (ug/L) | all year | 001 |
| Phosphorous, total organic [as P] | maximum | report only (ug/L) | all year | 001 |
| Magnesium, total [as Mg] | maximum | report only (ug/L) | all year | 001 |
| Barium, total [as Ba] | maximum | report only (ug/L) | all year | 001 |
| Boron, total [as B] | maximum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | maximum | report only (ug/L) | all year | 001 |
| Manganese, total [as Mn] | maximum | report only (ug/L) | all year | 001 |
| Zinc, total [as Zn] | maximum | report only (ug/L) | all year | 001 |
| Aluminum, total [as Al] | maximum | report only (ug/L) | all year | 001 |
| Whole effluent toxicity | maximum | report only (%) | 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 |
| Chlorine, total residual | monthly average | ≤ 6.1 ug/d | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ 12.3 ug/d | all year | 001 |
| Iron, total [as Fe] | maximum | report only (ug/L) | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 1 mg/L | all year | 002 |
| Storm water flow | daily maximum | report only (MGD) | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | A01 |
| pH | maximum | ≤ 9 SU | all year | A01 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | A01 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | A01 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | A01 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | A01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | B01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | B01 |
| Chlorine, total residual | daily maximum | ≤ .02 mg/L | all year | B01 |
| pH | minimum | ≥ 6 SU | all year | C01 |
| pH | maximum | ≤ 9 SU | all year | C01 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | C01 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | C01 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | C01 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | C01 |
| Copper, total [as Cu] | monthly average | ≤ 1 mg/L | all year | C01 |
| Copper, total [as Cu] | daily maximum | ≤ 1 mg/L | all year | C01 |
| Iron, total [as Fe] | monthly average | ≤ 1 mg/L | all year | C01 |
| Iron, total [as Fe] | daily maximum | ≤ 1 mg/L | all year | C01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | C01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | C01 |
| pH | minimum | ≥ 6 SU | all year | D01 |
| pH | maximum | ≤ 9 SU | all year | D01 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | D01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | D01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | E01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | E01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | F01 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | F01 |
| Color | value | report only (Ratio) | all year | G01 |
| Odor [Threshold Number] | value | report only (threshold #) | all year | G01 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | G01 |
| BOD, 5-day, 20 deg. C | maximum | ≤ 54.1 lb/d | all year | G01 |
| pH | minimum | report only (SU) | all year | G01 |
| pH | maximum | report only (SU) | all year | G01 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | G01 |
| Phosphorous, total organic [as P] | maximum | ≤ 16.6 lb/d | all year | G01 |
| Magnesium, total [as Mg] | maximum | report only (ug/L) | all year | G01 |
| Sulfate, total [as SO4] | maximum | report only (ug/L) | all year | G01 |
| Arsenic, total [as As] | maximum | report only (ug/L) | all year | G01 |
| Barium, total [as Ba] | maximum | report only (ug/L) | all year | G01 |
| Boron, total [as B] | maximum | report only (ug/L) | all year | G01 |
| Copper, total [as Cu] | maximum | ≤ .9 lb/d | all year | G01 |
| Lead, total [as Pb] | maximum | report only (ug/L) | all year | G01 |
| Manganese, total [as Mn] | maximum | report only (ug/L) | all year | G01 |
| Manganese, total [as Mn] | maximum | report only (ug/L) | all year | G01 |
| Nickel, total [as Ni] | maximum | report only (ug/L) | all year | G01 |
| Silver, total [as Ag] | maximum | report only (ug/L) | all year | G01 |
| Zinc, total [as Zn] | maximum | report only (ug/L) | all year | G01 |
| Aluminum, total [as Al] | maximum | report only (ug/L) | all year | G01 |
| Selenium, total [as Se] | maximum | report only (ug/L) | all year | G01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | G01 |
| Flow, in conduit or thru treatment plant | maximum | report only (MGD) | all year | G01 |
| Mercury, total [as Hg] | maximum | report only (ug/L) | all year | G01 |
| Iron, total [as Fe] | maximum | report only (ug/L) | all year | G01 |
| Color | maximum | report only (%) | all year | J01 |
| Odor [Threshold Number] | maximum | report only (threshold #) | all year | J01 |
| BOD, 5-day, 20 deg. C | maximum | report only (lb/d) | all year | J01 |
| pH | minimum | report only (SU) | all year | J01 |
| pH | maximum | report only (SU) | all year | J01 |
| Flow, in conduit or thru treatment plant | weekly average | report only (gal/min) | all year | J01 |
| Flow, in conduit or thru treatment plant | maximum | ≤ 50 gal/min | all year | J01 |
| Chemical Oxygen Demand [COD] | maximum | report only (lb/d) | all year | J01 |
| Color | maximum | report only (%) | all year | K01 |
| Odor [Threshold Number] | maximum | report only (threshold #) | all year | K01 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | K01 |
| BOD, 5-day, 20 deg. C | maximum | ≤ 925 lb/d | all year | K01 |
| pH | minimum | report only (SU) | all year | K01 |
| pH | maximum | report only (SU) | all year | K01 |
| Nitrogen, total [as N] | maximum | report only (mg/L) | all year | K01 |
| Phosphorous, total organic [as P] | maximum | ≤ 5 mg/L | all year | K01 |
| Magnesium, total [as Mg] | maximum | report only (ug/L) | all year | K01 |
| Sulfate, total [as SO4] | maximum | report only (ug/L) | all year | K01 |
| Arsenic, total [as As] | maximum | report only (ug/L) | all year | K01 |
| Iron, total [as Fe] | maximum | report only (ug/L) | all year | K01 |
| Thallium, total [as Tl] | maximum | report only (ug/L) | all year | K01 |
| Zinc, total [as Zn] | maximum | report only (ug/L) | all year | K01 |
| Selenium, total [as Se] | maximum | report only (ug/L) | all year | K01 |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/min) | all year | K01 |
| Flow, in conduit or thru treatment plant | maximum | report only (gal/min) | all year | K01 |
| Chemical Oxygen Demand [COD] | monthly average | report only (lb/d) | all year | K01 |
| Chemical Oxygen Demand [COD] | maximum | ≤ 2700 lb/d | all year | K01 |
Cited limits by parameter: we hold no rule of the U.S. Virgin Islands's own; 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/VI0050024 · MCP: https://passage-data.com/mcp