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Petroleum Refining, major discharger, Rosemount, Minnesota. NPDES permit MN0000418 expired Sep 30, 2023; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | ≤ 120 deg F | all year |
| Specific conductance | quarterly maximum | report only (umho/cm) | Mar, Jun, Sep, Dec |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 25 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 630 kg/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 1473 kg/d | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Bicarbonate ion- [as HCO3] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | monthly average | ≤ 614 kg/d | all year |
| Solids, total suspended | year-to-date total | ≤ 224110 kg/yr | all year |
| Solids, total suspended | daily maximum | ≤ 1120 kg/d | all year |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year |
| Oil and grease, hexane extr method | monthly average | ≤ 217 kg/d | all year |
| Oil and grease, hexane extr method | daily maximum | ≤ 416 kg/d | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Mar, Sep |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 702 kg/d | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1455 kg/d | all year |
| Nitrogen, ammonia, tot unionized [as N] | daily maximum | ≤ .46 mg/L | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Sep |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Sep |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | annual total | ≤ 2644 kg/yr | all year |
| Sulfide, total [as S] | monthly average | report only (ug/L) | all year |
| Sulfide, total [as S] | monthly maximum | report only (ug/L) | all year |
| Sulfide, total [as S] | monthly average | ≤ 4.6 kg/d | all year |
| Sulfide, total [as S] | daily maximum | ≤ 10.15 kg/d | all year |
| Calcium, total [as Ca] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Magnesium, total [as Mg] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Sodium, total [as Na] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Potassium, total [as K] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Chloride [as Cl] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Sulfate, total [as SO4] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Chromium, hexavalent [as Cr] | monthly maximum | ≤ 29 ug/L | all year |
| Chromium, hexavalent [as Cr] | monthly average | ≤ .64 kg/d | all year |
| Chromium, hexavalent [as Cr] | daily maximum | ≤ 1.43 kg/d | all year |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year |
| Chromium, total [as Cr] | monthly maximum | report only (ug/L) | all year |
| Chromium, total [as Cr] | monthly average | ≤ 8.3 kg/d | all year |
| Chromium, total [as Cr] | daily maximum | ≤ 18.6 kg/d | all year |
| Aluminum, total [as Al] | quarterly maximum | report only (ug/L) | Mar, Jun, Sep, Dec |
| Selenium, total [as Se] | monthly average | report only (mg/L) | Jan, Mar, May, Jul, Sep, Nov |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | Jan, Mar, May, Jul, Sep, Nov |
| Toxicity, salmo acute | daily maximum | ≤ .9999 tox acute | Jun |
| Phenolics, total recoverable | daily maximum | ≤ 2214 ug/L | all year |
| Phenolics, total recoverable | monthly average | ≤ 5 kg/d | all year |
| Phenolics, total recoverable | daily maximum | ≤ 11.87 kg/d | all year |
| Hardness, Ca Mg Calculated [mg/L as CaCO3] | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | all year |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorobutanoic acid (PFBA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorooctanesulfonamide (PFOSA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorooctanesulfonate | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluoropentanoic acid (PFPeA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorohexanoic acid (PFHxA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluoroheptanoic acid (PFHpA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorononanoic acid (PFNA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorodecanoic acid (PFDA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluoroundecanoic acid (PFUnA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorododecanoic acid (PFDoA) | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorobutane Sulfonate | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Perfluorohexane Sulfonate | quarterly average | report only (ng/L) | Mar, Jun, Sep, Dec |
| Solids, total dissolved | quarterly maximum | report only (mg/L) | Mar, Jun, Sep, Dec |
| Mercury, dissolved [as Hg] | monthly average | report only (ng/L) | all year |
| Mercury, dissolved [as Hg] | daily maximum | report only (ng/L) | all year |
| Mercury, total [as Hg] | monthly average | ≤ 10 ng/L | all year |
| Mercury, total [as Hg] | daily maximum | ≤ 17 ng/L | all year |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | monthly maximum | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | monthly average | ≤ 6041 kg/d | all year |
| Chemical Oxygen Demand [COD] | daily maximum | ≤ 11806 kg/d | all year |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year |
Cited limits by parameter: Minnesota's rules and the federal ones.
Same industry: the 3 Petroleum Refining and Related Industries permits in Minnesota.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MN0000418 · MCP: https://passage-data.com/mcp