Passage Data · Check a report · Use it from your AI
Iron Ores, major discharger, Babbitt, Minnesota. NPDES permit MN0046981 expired Jul 31, 2014; its limits still apply. Last 12 months: no values over a limit, 241 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Precipitation, total defined period/in | single sample | report only (in) | Apr, Nov | 003 |
| Asbestos | single sample | report only (MF/L) | Apr, Nov | 003 |
| Asbestos, Chrysotile | single sample | report only (MF/L) | Apr, Nov | 003 |
| Asbestos, total amphibole | single sample | report only (MF/L) | Apr, Nov | 003 |
| Fibers, ambiguous asbestos | single sample | report only (MF/L) | Apr, Nov | 003 |
| Fibers, non-amphibole, non-chrysotile asbestos | single sample | report only (MF/L) | Apr, Nov | 003 |
| Flow, in conduit or thru treatment plant | single sample | report only (MGD) | Apr, Nov | 003 |
| Precipitation, total defined period/in | single sample | report only (in) | Apr, Nov | 004 |
| Asbestos | single sample | report only (MF/L) | Apr, Nov | 004 |
| Asbestos, Chrysotile | single sample | report only (MF/L) | Apr, Nov | 004 |
| Asbestos, total amphibole | single sample | report only (MF/L) | Apr, Nov | 004 |
| Fibers, ambiguous asbestos | single sample | report only (MF/L) | Apr, Nov | 004 |
| Fibers, non-amphibole, non-chrysotile asbestos | single sample | report only (MF/L) | Apr, Nov | 004 |
| Flow, in conduit or thru treatment plant | single sample | report only (MGD) | Apr, Nov | 004 |
| Oxygen, dissolved [DO] | monthly minimum | report only (mg/L) | all year | 010 |
| pH | monthly minimum | ≥ 6 SU | all year | 010 |
| pH | monthly maximum | ≤ 9 SU | all year | 010 |
| Solids, total suspended | monthly average | ≤ 45 mg/L | all year | 010 |
| Solids, total suspended | maximum weekly average | ≤ 65 mg/L | all year | 010 |
| Solids, total suspended | monthly average | ≤ 13.3 kg/d | all year | 010 |
| Solids, total suspended | maximum weekly average | ≤ 19.2 kg/d | all year | 010 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 010 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | 010 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | Apr–Oct | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | 010 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Mar, Apr, May, Jun, Sep, Oct, Nov, Dec | 010 |
| Flow, in conduit or thru treatment plant | monthly total | report only (Mgal/mo) | Jan, Feb, Jul, Aug | 010 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 7.4 kg/d | all year | 010 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 11.8 kg/d | all year | 010 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 100 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 100 |
| Turbidity | monthly average | report only (NTU) | all year | 100 |
| Turbidity | monthly maximum | report only (NTU) | all year | 100 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 100 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 100 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 100 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 100 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 100 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 100 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 100 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 100 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | 100 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 100 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 100 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 100 |
| Nickel, total [as Ni] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 100 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 100 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 100 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Sep | 100 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Sep | 100 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 101 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 101 |
| Turbidity | monthly average | ≤ 25 NTU | all year | 101 |
| Turbidity | monthly maximum | report only (NTU) | all year | 101 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 101 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 101 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 101 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 101 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 101 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 101 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 101 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | 101 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 101 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 101 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 101 |
| Nickel, total [as Ni] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 101 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 101 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Sep | 101 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Sep | 101 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 102 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 102 |
| Turbidity | monthly average | report only (NTU) | all year | 102 |
| Turbidity | monthly maximum | report only (NTU) | all year | 102 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 102 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 102 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 102 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 102 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 102 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 102 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 102 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 102 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | 102 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 102 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 102 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 102 |
| Nickel, total [as Ni] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 102 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 102 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Sep | 102 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Sep | 102 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 104 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 104 |
| Turbidity | monthly average | report only (NTU) | all year | 104 |
| Turbidity | monthly maximum | report only (NTU) | all year | 104 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 104 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 104 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 104 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 104 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 104 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 104 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 104 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 104 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | 104 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 104 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 104 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 104 |
| Nickel, total [as Ni] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 104 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 104 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 104 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Sep | 104 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Sep | 104 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 105 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 105 |
| Turbidity | monthly average | report only (NTU) | all year | 105 |
| Turbidity | monthly maximum | report only (NTU) | all year | 105 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 105 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 105 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 105 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 105 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 105 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 105 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 105 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 105 |
| Sulfate, total [as SO4] | monthly maximum | report only (mg/L) | all year | 105 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 105 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 105 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 105 |
| Nickel, total [as Ni] | monthly maximum | report only (ug/L) | Apr, Jul, Oct | 105 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 105 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 105 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Sep | 105 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Sep | 105 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 106 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 106 |
| Turbidity | monthly average | report only (NTU) | all year | 106 |
| Turbidity | monthly maximum | report only (NTU) | all year | 106 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 106 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 106 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 106 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 106 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 106 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 106 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 106 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 106 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 106 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 106 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 106 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 106 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 106 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 106 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 106 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 107 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 107 |
| Turbidity | monthly average | report only (NTU) | all year | 107 |
| Turbidity | monthly maximum | report only (NTU) | all year | 107 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 107 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 107 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 107 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 107 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 107 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 107 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 107 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 107 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 107 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 107 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 107 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 107 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 107 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 107 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 107 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 108 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 108 |
| Turbidity | monthly average | report only (NTU) | all year | 108 |
| Turbidity | monthly maximum | report only (NTU) | all year | 108 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 108 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 108 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 108 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 108 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 108 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 108 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 108 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 108 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 108 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 108 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 108 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 108 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 108 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 108 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 108 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 109 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 109 |
| Turbidity | monthly average | report only (NTU) | all year | 109 |
| Turbidity | monthly maximum | report only (NTU) | all year | 109 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 109 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 109 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 109 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 109 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 109 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 109 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 109 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 109 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 109 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 109 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 109 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 109 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 109 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 109 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 109 |
| Temperature, water deg. centigrade | quarterly average | report only (deg C) | Mar, Jun, Sep, Dec | 110 |
| Temperature, water deg. centigrade | quarterly maximum | report only (deg C) | Mar, Jun, Sep, Dec | 110 |
| Turbidity | quarterly average | report only (NTU) | Mar, Jun, Sep, Dec | 110 |
| Turbidity | quarterly maximum | report only (NTU) | Mar, Jun, Sep, Dec | 110 |
| pH | instantaneous minimum | ≥ 6.5 SU | Mar, Jun, Sep, Dec | 110 |
| pH | instantaneous maximum | ≤ 8.5 SU | Mar, Jun, Sep, Dec | 110 |
| Solids, total suspended | quarterly average | ≤ 20 mg/L | Mar, Jun, Sep, Dec | 110 |
| Solids, total suspended | quarterly maximum | ≤ 30 mg/L | Mar, Jun, Sep, Dec | 110 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | Apr, Sep | 110 |
| Iron, dissolved [as Fe] | quarterly average | ≤ 1 mg/L | Mar, Jun, Sep, Dec | 110 |
| Iron, dissolved [as Fe] | quarterly maximum | ≤ 2 mg/L | Mar, Jun, Sep, Dec | 110 |
| Flow, in conduit or thru treatment plant | quarterly total | report only (MGD) | Mar, Jun, Sep, Dec | 110 |
| Flow, in conduit or thru treatment plant | quarterly maximum | report only (MGD) | Mar, Jun, Sep, Dec | 110 |
| Mercury, total [as Hg] | quarterly average | report only (ug/L) | Mar, Jun, Sep, Dec | 110 |
| Mercury, total [as Hg] | quarterly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 110 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 111 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 111 |
| Turbidity | monthly average | report only (NTU) | all year | 111 |
| Turbidity | monthly maximum | report only (NTU) | all year | 111 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 111 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 111 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 111 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 111 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 111 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 111 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 111 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 111 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 111 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 111 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 111 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 111 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 111 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 111 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar–Oct | 112 |
| Temperature, water deg. centigrade | monthly maximum | report only (deg C) | Mar–Oct | 112 |
| Turbidity | monthly average | report only (NTU) | all year | 112 |
| Turbidity | monthly maximum | report only (NTU) | all year | 112 |
| pH | instantaneous minimum | ≥ 6.5 SU | all year | 112 |
| pH | instantaneous maximum | ≤ 8.5 SU | all year | 112 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 112 |
| Solids, total suspended | monthly maximum | ≤ 30 mg/L | Feb, Apr, Jun, Aug, Oct, Dec | 112 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar–Oct | 112 |
| Nitrogen, ammonia total [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 112 |
| Nitrogen, ammonia, tot unionized [as N] | monthly average | ≤ .04 mg/L | Mar–Oct | 112 |
| Nitrogen, ammonia, tot unionized [as N] | monthly maximum | report only (mg/L) | Mar–Oct | 112 |
| Sulfate, total [as SO4] | monthly average | report only (mg/L) | all year | 112 |
| Iron, dissolved [as Fe] | monthly average | ≤ 1 mg/L | all year | 112 |
| Iron, dissolved [as Fe] | monthly maximum | ≤ 2 mg/L | all year | 112 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 112 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 112 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 112 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 112 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 201 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 201 |
| Solids, total suspended | monthly average | ≤ 45 mg/L | all year | 201 |
| Solids, total suspended | maximum weekly average | ≤ 65 mg/L | all year | 201 |
| Solids, total suspended | monthly average | ≤ 7.5 kg/d | all year | 201 |
| Solids, total suspended | maximum weekly average | ≤ 10.8 kg/d | all year | 201 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 201 |
| Phosphorus, total [as P] | monthly maximum | ≤ 1.7 mg/L | all year | 201 |
| Phosphorus, total [as P] | monthly average | ≤ .17 kg/d | all year | 201 |
| Phosphorus, total [as P] | monthly maximum | ≤ .29 kg/d | all year | 201 |
| Coliform, fecal MPN + membrane ftl 44.5 C | monthly geometric mean | ≤ 200 #/100mL | Apr–Oct | 201 |
| Coliform, fecal MPN + membrane ftl 44.5 C | maximum weekly average | report only (#/100mL) | Apr–Oct | 201 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 201 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 201 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | Apr–Oct | 201 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 201 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 40 mg/L | all year | 201 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 4.2 kg/d | all year | 201 |
| BOD, carbonaceous [5 day, 20 C] | maximum weekly average | ≤ 6.6 kg/d | all year | 201 |
| Cadmium, total [as Cd] | monthly maximum | report only (ug/L) | Apr, Oct | 301 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Oct | 301 |
| Lead, total [as Pb] | monthly maximum | report only (ug/L) | Apr, Oct | 301 |
| Zinc, total [as Zn] | monthly maximum | report only (ug/L) | Apr, Oct | 301 |
| Chlorine, total residual | monthly maximum | ≤ .038 mg/L | all year | 301 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 301 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | ≤ 50 mg/L | all year | 301 |
| Conductivity | monthly maximum | report only (umho/cm) | all year | 302 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 302 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 302 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 302 |
| Solids, total suspended | monthly maximum | ≤ 60 mg/L | all year | 302 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 302 |
| Phosphorus, total [as P] | monthly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 302 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | Mar, Jun, Sep, Dec | 302 |
| Phosphorus, total [as P] | monthly maximum | report only (kg/d) | Mar, Jun, Sep, Dec | 302 |
| Cadmium, total [as Cd] | monthly maximum | report only (ug/L) | Apr, Oct | 302 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Oct | 302 |
| Lead, total [as Pb] | monthly maximum | report only (ug/L) | Apr, Oct | 302 |
| Zinc, total [as Zn] | monthly maximum | report only (ug/L) | Apr, Oct | 302 |
| Diesel range organics diesel, total, wtr | daily maximum | report only (ug/L) | all year | 302 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 302 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 302 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 302 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Sep | 302 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Sep | 302 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 302 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | ≤ 50 mg/L | all year | 302 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 303 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 303 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 303 |
| Solids, total suspended | monthly maximum | ≤ 60 mg/L | all year | 303 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 303 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 303 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 303 |
| Chlorine, total residual | monthly maximum | ≤ .038 mg/L | all year | 303 |
| Conductivity | monthly maximum | report only (umho/cm) | all year | 304 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 304 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 304 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 304 |
| Solids, total suspended | monthly maximum | ≤ 60 mg/L | all year | 304 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 304 |
| Phosphorus, total [as P] | monthly maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 304 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | Mar, Jun, Sep, Dec | 304 |
| Phosphorus, total [as P] | monthly maximum | report only (kg/d) | Mar, Jun, Sep, Dec | 304 |
| Cadmium, total [as Cd] | monthly maximum | report only (ug/L) | Apr, Oct | 304 |
| Copper, total [as Cu] | monthly maximum | report only (ug/L) | Apr, Oct | 304 |
| Lead, total [as Pb] | monthly maximum | report only (ug/L) | Apr, Oct | 304 |
| Zinc, total [as Zn] | monthly maximum | report only (ug/L) | Apr, Oct | 304 |
| Diesel range organics diesel, total, wtr | daily maximum | report only (ug/L) | all year | 304 |
| Flow, in conduit or thru treatment plant | monthly total | report only (MGD) | all year | 304 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 304 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 304 |
| Mercury, total [as Hg] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 304 |
| Mercury, total [as Hg] | monthly maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 304 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 304 |
| BOD, carbonaceous [5 day, 20 C] | monthly maximum | ≤ 50 mg/L | all year | 304 |
| Turbidity | daily maximum | report only (NTU) | Apr, Nov | 700 |
| Solids, total suspended | single sample | report only (mg/L) | Apr, Nov | 700 |
| Asbestos | single sample | report only (MF/L) | Apr, Nov | 700 |
| Asbestos, Chrysotile | single sample | report only (MF/L) | Apr, Nov | 700 |
| Asbestos, total amphibole | single sample | report only (MF/L) | Apr, Nov | 700 |
| Fibers, ambiguous asbestos | single sample | report only (MF/L) | Apr, Nov | 700 |
| Fibers, non-amphibole, non-chrysotile asbestos | single sample | report only (MF/L) | Apr, Nov | 700 |
| Flow, in conduit or thru treatment plant | single sample | report only (MGD) | Apr, Nov | 700 |
| Stream flow, instantaneous | single sample | report only (cfs) | Apr, Nov | 703 |
| Turbidity | daily maximum | report only (NTU) | Apr, Nov | 703 |
| Solids, total suspended | single sample | report only (mg/L) | Apr, Nov | 703 |
| Asbestos | single sample | report only (MF/L) | Apr, Nov | 703 |
| Asbestos, Chrysotile | single sample | report only (MF/L) | Apr, Nov | 703 |
| Asbestos, total amphibole | single sample | report only (MF/L) | Apr, Nov | 703 |
| Fibers, ambiguous asbestos | single sample | report only (MF/L) | Apr, Nov | 703 |
| Fibers, non-amphibole, non-chrysotile asbestos | single sample | report only (MF/L) | Apr, Nov | 703 |
| Stream flow, instantaneous | single sample | report only (cfs) | Apr, Nov | 710 |
| Turbidity | single sample | report only (NTU) | Apr, Nov | 710 |
| Solids, total suspended | single sample | report only (mg/L) | Apr, Nov | 710 |
| Asbestos | single sample | report only (MF/L) | Apr, Nov | 710 |
| Asbestos, Chrysotile | single sample | report only (MF/L) | Apr, Nov | 710 |
| Asbestos, total amphibole | single sample | report only (MF/L) | Apr, Nov | 710 |
| Fibers, ambiguous asbestos | single sample | report only (MF/L) | Apr, Nov | 710 |
| Fibers, non-amphibole, non-chrysotile asbestos | single sample | report only (MF/L) | Apr, Nov | 710 |
Cited limits by parameter: Minnesota's rules and the federal ones.
Same industry: the 7 Metal Mining permits in Minnesota.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MN0046981 · MCP: https://passage-data.com/mcp