NPDES permit MT0031755 · Major NON-POTW · administratively continued, expires 2018-07-31 · EPA's file as of 2026-09-19
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This permit expired on 2018-07-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31. Most often over: pH (1), Arsenic, total recoverable (1).
Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 001 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 001 | Flow rate | MO AVG | report only | all year |
| 001 | Flow rate | DAILY MX | report only | all year |
| 001 | pH | INST MIN | >= 7.6 SU | all year |
| 001 | pH | INST MAX | <= 8.3 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 3 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 6.1 mg/L | all year |
| 001 | Oil and grease, hexane extr method | SINGGRAB | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | <= .18 mg/L | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= .07 mg/L | all year |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= .07 mg/L | all year |
| 001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrite + Nitrate total [as N] | MO AVG | <= .11 mg/L | all year |
| 001 | Nitrite + Nitrate total [as N] | DAILY MX | <= .23 mg/L | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= .012 mg/L | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Hardness, total [as CaCO3] | SINGGRAB | report only | all year |
| 001 | Sulfate, total [as SO4] | SINGGRAB | report only | all year |
| 001 | Fluoride, total [as F] | MO AVG | <= 200 ug/L | all year |
| 001 | Fluoride, total [as F] | DAILY MX | <= 200 ug/L | all year |
| 001 | Arsenic, total recoverable | MO AVG | <= 5 ug/L | all year |
| 001 | Arsenic, total recoverable | DAILY MX | <= 10 ug/L | all year |
| 001 | Selenium, total recoverable | MO AVG | <= 1 ug/L | all year |
| 001 | Selenium, total recoverable | DAILY MX | <= 1 ug/L | all year |
| 001 | Nickel, total recoverable | MO AVG | <= 2 ug/L | all year |
| 001 | Nickel, total recoverable | DAILY MX | <= 2 ug/L | all year |
| 001 | Zinc, total recoverable | MO AVG | <= 8 ug/L | all year |
| 001 | Zinc, total recoverable | DAILY MX | <= 8 ug/L | all year |
| 001 | Cadmium, total recoverable | MO AVG | <= .03 ug/L | all year |
| 001 | Cadmium, total recoverable | DAILY MX | <= .05 ug/L | all year |
| 001 | Lead, total recoverable | MO AVG | <= .3 ug/L | all year |
| 001 | Lead, total recoverable | DAILY MX | <= .3 ug/L | all year |
| 001 | Chromium, total recoverable | MO AVG | <= 10 ug/L | all year |
| 001 | Chromium, total recoverable | DAILY MX | <= 10 ug/L | all year |
| 001 | Copper, total recoverable | MO AVG | <= 2 ug/L | all year |
| 001 | Copper, total recoverable | DAILY MX | <= 2.1 ug/L | all year |
| 001 | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 001 | Mercury, total recoverable | DAILY MX | <= .012 ug/L | all year |
| 001 | Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | VALUE | <= 0 pass=0;fail=1 | all year |
| 001 | Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | VALUE | <= 0 pass=0;fail=1 | all year |
| 002 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 002 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 002 | Flow rate | MO AVG | report only | all year |
| 002 | Flow rate | DAILY MX | report only | all year |
| 002 | pH | INST MIN | >= 7 SU | all year |
| 002 | pH | INST MAX | <= 8.5 SU | all year |
| 002 | Solids, total suspended | MO AVG | <= .4 mg/L | all year |
| 002 | Solids, total suspended | DAILY MX | <= .9 mg/L | all year |
| 002 | Oil and grease, hexane extr method | SINGGRAB | report only | all year |
| 002 | Nitrogen, total [as N] | MO AVG | <= .08 mg/L | all year |
| 002 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 002 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 002 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 002 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 002 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 002 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 002 | Phosphorus, total [as P] | MO AVG | <= .02 mg/L | all year |
| 002 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 002 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 002 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 002 | Hardness, total [as CaCO3] | SINGGRAB | report only | all year |
| 002 | Sulfate, total [as SO4] | SINGGRAB | report only | all year |
| 002 | Fluoride, total [as F] | MO AVG | report only | all year |
| 002 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 002 | Arsenic, total recoverable | MO AVG | report only | all year |
| 002 | Arsenic, total recoverable | DAILY MX | report only | all year |
| 002 | Selenium, total recoverable | MO AVG | <= 1 ug/L | all year |
| 002 | Selenium, total recoverable | DAILY MX | <= 1.23 ug/L | all year |
| 002 | Nickel, total recoverable | MO AVG | report only | all year |
| 002 | Nickel, total recoverable | DAILY MX | report only | all year |
| 002 | Zinc, total recoverable | MO AVG | <= 8 ug/L | all year |
| 002 | Zinc, total recoverable | DAILY MX | <= 9.2 ug/L | all year |
| 002 | Cadmium, total recoverable | MO AVG | <= .03 ug/L | all year |
| 002 | Cadmium, total recoverable | DAILY MX | <= .03 ug/L | all year |
| 002 | Lead, total recoverable | MO AVG | <= .3 ug/L | all year |
| 002 | Lead, total recoverable | DAILY MX | <= .3 ug/L | all year |
| 002 | Chromium, total recoverable | MO AVG | report only | all year |
| 002 | Chromium, total recoverable | DAILY MX | report only | all year |
| 002 | Copper, total recoverable | MO AVG | <= 2 ug/L | all year |
| 002 | Copper, total recoverable | DAILY MX | <= 2 ug/L | all year |
| 002 | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 002 | Mercury, total recoverable | DAILY MX | <= .012 ug/L | all year |
| 002 | Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | VALUE | <= 0 pass=0;fail=1 | all year |
| 002 | Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | VALUE | <= 0 pass=0;fail=1 | all year |
| 003 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 003 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 003 | Flow rate | MO AVG | report only | all year |
| 003 | Flow rate | DAILY MX | report only | all year |
| 003 | pH | INST MIN | >= 7 SU | all year |
| 003 | pH | INST MAX | <= 8.5 SU | all year |
| 003 | Solids, total suspended | MO AVG | <= 1 mg/L | all year |
| 003 | Solids, total suspended | DAILY MX | <= 2 mg/L | all year |
| 003 | Oil and grease, hexane extr method | SINGGRAB | report only | all year |
| 003 | Nitrogen, total [as N] | MO AVG | <= .27 mg/L | all year |
| 003 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 003 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 003 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 003 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 003 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 003 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 003 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 003 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 003 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 003 | Phosphorus, total [as P] | MO AVG | <= .008 mg/L | all year |
| 003 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 003 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 003 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 003 | Hardness, total [as CaCO3] | SINGGRAB | report only | all year |
| 003 | Sulfate, total [as SO4] | SINGGRAB | report only | all year |
| 003 | Fluoride, total [as F] | MO AVG | report only | all year |
| 003 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 003 | Arsenic, total recoverable | MO AVG | <= 2 ug/L | all year |
| 003 | Arsenic, total recoverable | DAILY MX | <= 3.9 ug/L | all year |
| 003 | Selenium, total recoverable | MO AVG | <= 1 ug/L | all year |
| 003 | Selenium, total recoverable | DAILY MX | <= 1.23 ug/L | all year |
| 003 | Nickel, total recoverable | MO AVG | report only | all year |
| 003 | Nickel, total recoverable | DAILY MX | report only | all year |
| 003 | Zinc, total recoverable | MO AVG | <= 27.6 ug/L | all year |
| 003 | Zinc, total recoverable | DAILY MX | <= 55.5 ug/L | all year |
| 003 | Cadmium, total recoverable | MO AVG | <= .06 ug/L | all year |
| 003 | Cadmium, total recoverable | DAILY MX | <= .11 ug/L | all year |
| 003 | Lead, total recoverable | MO AVG | <= 1 ug/L | all year |
| 003 | Lead, total recoverable | DAILY MX | <= 2 ug/L | all year |
| 003 | Chromium, total recoverable | MO AVG | report only | all year |
| 003 | Chromium, total recoverable | DAILY MX | report only | all year |
| 003 | Copper, total recoverable | MO AVG | <= 2.1 ug/L | all year |
| 003 | Copper, total recoverable | DAILY MX | <= 4.3 ug/L | all year |
| 003 | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 003 | Mercury, total recoverable | DAILY MX | <= .012 ug/L | all year |
| 004 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 004 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 004 | Flow rate | MO AVG | report only | all year |
| 004 | Flow rate | DAILY MX | report only | all year |
| 004 | pH | INST MIN | >= 7 SU | all year |
| 004 | pH | INST MAX | <= 8.5 SU | all year |
| 004 | Solids, total suspended | MO AVG | <= 1.5 mg/L | all year |
| 004 | Solids, total suspended | DAILY MX | <= 3 mg/L | all year |
| 004 | Oil and grease, hexane extr method | SINGGRAB | report only | all year |
| 004 | Nitrogen, total [as N] | MO AVG | <= .14 mg/L | all year |
| 004 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 004 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 004 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 004 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 004 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 004 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 004 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 004 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 004 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 004 | Phosphorus, total [as P] | MO AVG | <= .012 mg/L | all year |
| 004 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 004 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 004 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 004 | Hardness, total [as CaCO3] | SINGGRAB | report only | all year |
| 004 | Sulfate, total [as SO4] | SINGGRAB | report only | all year |
| 004 | Fluoride, total [as F] | MO AVG | report only | all year |
| 004 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 004 | Arsenic, total recoverable | MO AVG | <= 3 ug/L | all year |
| 004 | Arsenic, total recoverable | DAILY MX | <= 6.1 ug/L | all year |
| 004 | Selenium, total recoverable | MO AVG | <= 1 ug/L | all year |
| 004 | Selenium, total recoverable | DAILY MX | <= 1.23 ug/L | all year |
| 004 | Nickel, total recoverable | MO AVG | report only | all year |
| 004 | Nickel, total recoverable | DAILY MX | report only | all year |
| 004 | Zinc, total recoverable | MO AVG | <= 14.7 ug/L | all year |
| 004 | Zinc, total recoverable | DAILY MX | <= 29.5 ug/L | all year |
| 004 | Cadmium, total recoverable | MO AVG | <= .04 ug/L | all year |
| 004 | Cadmium, total recoverable | DAILY MX | <= .08 ug/L | all year |
| 004 | Lead, total recoverable | MO AVG | <= .5 ug/L | all year |
| 004 | Lead, total recoverable | DAILY MX | <= 1 ug/L | all year |
| 004 | Chromium, total recoverable | MO AVG | report only | all year |
| 004 | Chromium, total recoverable | DAILY MX | report only | all year |
| 004 | Copper, total recoverable | MO AVG | <= 2 ug/L | all year |
| 004 | Copper, total recoverable | DAILY MX | <= 2.8 ug/L | all year |
| 004 | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 004 | Mercury, total recoverable | DAILY MX | <= .012 ug/L | all year |
| 004 | Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | VALUE | <= 0 pass=0;fail=1 | all year |
| 004 | Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | VALUE | <= 0 pass=0;fail=1 | all year |
| 005 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 005 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 005 | Flow rate | MO AVG | report only | all year |
| 005 | Flow rate | DAILY MX | report only | all year |
| 005 | pH | MO AVG | <= 7 SU | all year |
| 005 | pH | DAILY MX | <= 8.5 SU | all year |
| 005 | Solids, total suspended | MO AVG | <= 1 mg/L | all year |
| 005 | Solids, total suspended | DAILY MX | <= 2 mg/L | all year |
| 005 | Oil and grease, hexane extr method | SINGGRAB | report only | all year |
| 005 | Nitrogen, total [as N] | MO AVG | <= .27 mg/L | all year |
| 005 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 005 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 005 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 005 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 005 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 005 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 005 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 005 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 005 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 005 | Phosphorus, total [as P] | MO AVG | <= .008 mg/L | all year |
| 005 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 005 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 005 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 005 | Hardness, total [as CaCO3] | SINGGRAB | report only | all year |
| 005 | Sulfate, total [as SO4] | SINGGRAB | report only | all year |
| 005 | Fluoride, total [as F] | MO AVG | report only | all year |
| 005 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 005 | Arsenic, total recoverable | MO AVG | <= 2 ug/L | all year |
| 005 | Arsenic, total recoverable | DAILY MX | <= 3.9 ug/L | all year |
| 005 | Selenium, total recoverable | MO AVG | <= 1 ug/L | all year |
| 005 | Selenium, total recoverable | DAILY MX | <= 1.23 ug/L | all year |
| 005 | Nickel, total recoverable | MO AVG | report only | all year |
| 005 | Nickel, total recoverable | DAILY MX | report only | all year |
| 005 | Zinc, total recoverable | MO AVG | <= 27.6 ug/L | all year |
| 005 | Zinc, total recoverable | DAILY MX | <= 55.5 ug/L | all year |
| 005 | Cadmium, total recoverable | MO AVG | <= .06 ug/L | all year |
| 005 | Cadmium, total recoverable | DAILY MX | <= .11 ug/L | all year |
| 005 | Lead, total recoverable | MO AVG | <= 1 ug/L | all year |
| 005 | Lead, total recoverable | DAILY MX | <= 2 ug/L | all year |
| 005 | Chromium, total recoverable | MO AVG | report only | all year |
| 005 | Chromium, total recoverable | DAILY MX | report only | all year |
| 005 | Copper, total recoverable | MO AVG | <= 2.1 ug/L | all year |
| 005 | Copper, total recoverable | DAILY MX | <= 4.3 ug/L | all year |
| 005 | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 005 | Mercury, total recoverable | DAILY MX | <= .012 ug/L | all year |
| 005 | Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | VALUE | <= 0 pass=0;fail=1 | all year |
| 005 | Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | VALUE | <= 0 pass=0;fail=1 | all year |
| 006 | Temperature, water deg. centigrade | MO AVG | report only | all year |
| 006 | Temperature, water deg. centigrade | DAILY MX | report only | all year |
| 006 | Flow rate | MO AVG | report only | all year |
| 006 | Flow rate | DAILY MX | report only | all year |
| 006 | pH | MO AVG | <= 7 SU | all year |
| 006 | pH | DAILY MX | <= 8.5 SU | all year |
| 006 | Solids, total suspended | MO AVG | <= 1 mg/L | all year |
| 006 | Solids, total suspended | DAILY MX | <= 2 mg/L | all year |
| 006 | Oil and grease, hexane extr method | SINGGRAB | report only | all year |
| 006 | Nitrogen, total [as N] | MO AVG | <= .27 mg/L | all year |
| 006 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 006 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 006 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 006 | Nitrogen, ammonia total [as N] | MO AVG | report only | all year |
| 006 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 006 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | all year |
| 006 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 006 | Nitrite + Nitrate total [as N] | MO AVG | report only | all year |
| 006 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 006 | Phosphorus, total [as P] | MO AVG | <= .008 mg/L | all year |
| 006 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 006 | Phosphorus, total [as P] | MO AVG | report only | all year |
| 006 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 006 | Hardness, total [as CaCO3] | SINGGRAB | report only | all year |
| 006 | Sulfate, total [as SO4] | SINGGRAB | report only | all year |
| 006 | Fluoride, total [as F] | MO AVG | report only | all year |
| 006 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 006 | Arsenic, total recoverable | MO AVG | <= 2 ug/L | all year |
| 006 | Arsenic, total recoverable | DAILY MX | <= 3.9 ug/L | all year |
| 006 | Selenium, total recoverable | MO AVG | <= 1 ug/L | all year |
| 006 | Selenium, total recoverable | DAILY MX | <= 1.23 ug/L | all year |
| 006 | Nickel, total recoverable | MO AVG | report only | all year |
| 006 | Nickel, total recoverable | DAILY MX | report only | all year |
| 006 | Zinc, total recoverable | MO AVG | <= 27.6 ug/L | all year |
| 006 | Zinc, total recoverable | DAILY MX | <= 55.5 ug/L | all year |
| 006 | Cadmium, total recoverable | MO AVG | <= .06 ug/L | all year |
| 006 | Cadmium, total recoverable | DAILY MX | <= .11 ug/L | all year |
| 006 | Lead, total recoverable | MO AVG | <= 1 ug/L | all year |
| 006 | Lead, total recoverable | DAILY MX | <= 2 ug/L | all year |
| 006 | Chromium, total recoverable | MO AVG | report only | all year |
| 006 | Chromium, total recoverable | DAILY MX | report only | all year |
| 006 | Copper, total recoverable | MO AVG | <= 2.1 ug/L | all year |
| 006 | Copper, total recoverable | DAILY MX | <= 4.3 ug/L | all year |
| 006 | Mercury, total recoverable | MO AVG | <= .006 ug/L | all year |
| 006 | Mercury, total recoverable | DAILY MX | <= .012 ug/L | all year |
| 006 | Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | VALUE | <= 0 pass=0;fail=1 | all year |
| 006 | Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | VALUE | <= 0 pass=0;fail=1 | all year |
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