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Special Trade Contractors, Saint Louis Park, Minnesota. NPDES permit MN0045489, in force until Apr 30, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | D001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D001 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | D001 |
| Chloride [as Cl] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | D001 |
| Phenolics, total recoverable | daily maximum | ≤ 10 ug/L | all year | D001 |
| Anthracene | monthly average | ≤ .035 ug/L | all year | D001 |
| Anthracene | daily maximum | ≤ .32 ug/L | all year | D001 |
| Fluoranthene | monthly average | ≤ 1.9 ug/L | all year | D001 |
| Fluoranthene | daily maximum | ≤ 3.5 ug/L | all year | D001 |
| Phenanthrene | monthly average | ≤ 1 ug/L | all year | D001 |
| Phenanthrene | daily maximum | ≤ 2 ug/L | all year | D001 |
| Naphthalene | monthly average | ≤ 5 ug/L | all year | D001 |
| Naphthalene | daily maximum | ≤ 17 ug/L | all year | D001 |
| Diesel range organics diesel, total, wtr | daily maximum | ≤ 200 ug/L | all year | D001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D001 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | D001 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D001 |
| Total Group I Polycyclic Aromatic Hydrocarbons | monthly average | ≤ .07 ug/L | all year | D001 |
| Total Group I Polycyclic Aromatic Hydrocarbons | daily maximum | ≤ .311 ug/L | all year | D001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | D002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | D002 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | D002 |
| Chloride [as Cl] | quarterly average | report only (mg/L) | Mar, Jun, Sep, Dec | D002 |
| Phenolics, total recoverable | daily maximum | ≤ 10 ug/L | all year | D002 |
| Anthracene | monthly average | ≤ .035 ug/L | all year | D002 |
| Anthracene | daily maximum | ≤ .32 ug/L | all year | D002 |
| Fluoranthene | monthly average | ≤ 1.9 ug/L | all year | D002 |
| Fluoranthene | daily maximum | ≤ 3.5 ug/L | all year | D002 |
| Phenanthrene | monthly average | ≤ 1 ug/L | all year | D002 |
| Phenanthrene | daily maximum | ≤ 2 ug/L | all year | D002 |
| Naphthalene | monthly average | ≤ 5 ug/L | all year | D002 |
| Naphthalene | daily maximum | ≤ 17 ug/L | all year | D002 |
| Diesel range organics diesel, total, wtr | daily maximum | ≤ 200 ug/L | all year | D002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D002 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | D002 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year | D002 |
| Total Group I Polycyclic Aromatic Hydrocarbons | monthly average | ≤ .07 ug/L | all year | D002 |
| Total Group I Polycyclic Aromatic Hydrocarbons | daily maximum | ≤ .311 ug/L | all year | D002 |
Cited limits by parameter: Minnesota's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/MN0045489 · MCP: https://passage-data.com/mcp