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Saint Paul Park Refining Co LLC

Petroleum Refining, major discharger, Saint Paul Park, Minnesota. NPDES permit MN0000256 expired May 31, 2019; its limits still apply. Last 12 months: no values over a limit, 32 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: form M monthly (50 values)
Last report on file
June 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (54)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheitdaily maximum≤ 105 deg Fall year
BOD, 5-day, 20 deg. Cmonthly average≤ 25 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 186 kg/dall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 369 kg/dall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 172 kg/dall year
Solids, total suspendeddaily maximum≤ 269 kg/dall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year
Oil and grease, hexane extr methodmonthly average≤ 63 kg/dall year
Oil and grease, hexane extr methoddaily maximum≤ 118 kg/dall year
Nitrogen, ammonia total [as N]monthly average≤ 108 kg/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 238 kg/dall year
Nitrogen, ammonia, tot unionized [as N]daily maximum≤ .46 mg/Lall year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Apr, Sep
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Apr, Sep
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly totalreport only (kg/mo)all year
Phosphorus, total [as P]annual total≤ 1515 kg/yrall year
Sulfide, total [as S]monthly average≤ 1 kg/dall year
Sulfide, total [as S]daily maximum≤ 2.4 kg/dall year
Chromium, hexavalent [as Cr]monthly average≤ .25 kg/dFeb, May, Aug, Nov
Chromium, hexavalent [as Cr]daily maximum≤ .55 kg/dFeb, May, Aug, Nov
Chromium, total [as Cr]monthly average≤ 2.91 kg/dFeb, May, Aug, Nov
Chromium, total [as Cr]daily maximum≤ 8.36 kg/dFeb, May, Aug, Nov
Zinc, total [as Zn]daily maximum≤ 421 ug/LMar, Jun, Sep, Dec
Selenium, total [as Se]daily maximumreport only (ug/L)Mar, Jun, Sep, Dec
Phenolics, total recoverablemonthly average≤ 2.4 kg/dall year
Phenolics, total recoverabledaily maximum≤ 6.77 kg/dall year
Phenoldaily maximum≤ 2214 ug/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all year
Perfluorooctanoic acid (PFOA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorobutanoic acid (PFBA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorooctanesulfonamide (PFOSA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorooctanesulfonatequarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluoropentanoic acid (PFPeA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorohexanoic acid (PFHxA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluoroheptanoic acid (PFHpA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorononanoic acid (PFNA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorodecanoic acid (PFDA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluoroundecanoic acid (PFUnA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorododecanoic acid (PFDoA)quarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorobutane Sulfonatequarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Perfluorohexane Sulfonatequarterly maximumreport only (ng/L)Mar, Jun, Sep, Dec
Solids, total dissolveddaily maximumreport only (mg/L)Apr, Sep
Mercury, dissolved [as Hg]daily maximumreport only (ng/L)all year
Mercury, total [as Hg]monthly average≤ 10 ng/Lall year
Mercury, total [as Hg]daily maximum≤ 18 ng/Lall year
Chemical Oxygen Demand [COD]monthly average≤ 1495 kg/dall year
Chemical Oxygen Demand [COD]daily maximum≤ 2887 kg/dall year

How strict are these limits?

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/MN0000256 · MCP: https://passage-data.com/mcp