NPDES permit MO0097543 · Minor NON-POTW · effective, expires 2026-11-30 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-06-30. Most often over: Selenium, total recoverable (7), Aluminum, total recoverable (5), Solids, total suspended (4).
Reports are due about 28 days after each monitoring period ends (the most common figure among MO permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 011 | Sulfate [as S] | DAILY MX | report only | all year |
| 011 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 120 mg/L | all year |
| 011 | pH | MINIMUM | >= 6.5 SU | all year |
| 011 | pH | MAXIMUM | <= 9 SU | all year |
| 011 | Solids, total suspended | DAILY MX | <= 80 mg/L | all year |
| 011 | Solids, settleable | DAILY MX | <= 1.5 mL/L | all year |
| 011 | Oil and grease [soxhlet extr.] tot. | DAILY MX | <= 15 mg/L | all year |
| 011 | Nitrogen, ammonia total [as N] | DAILY MX | <= 12.1 mg/L | Jan, Feb, Mar |
| 011 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8.4 mg/L | Oct, Nov, Dec |
| 011 | Nitrogen, ammonia total [as N] | DAILY MX | <= 10.1 mg/L | Apr, May, Jun |
| 011 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8.4 mg/L | Jul, Aug, Sep |
| 011 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 011 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 011 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 011 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 011 | Arsenic, total recoverable | DAILY MX | report only | all year |
| 011 | Iron, total recoverable | DAILY MX | <= 4000 ug/L | all year |
| 011 | Selenium, total recoverable | DAILY MX | <= 8 ug/L | all year |
| 011 | Thallium, total recoverable | DAILY MX | report only | all year |
| 011 | Beryllium, total recoverable [as Be] | DAILY MX | report only | all year |
| 011 | Nickel, total recoverable | DAILY MX | report only | all year |
| 011 | Silver total recoverable | DAILY MX | report only | all year |
| 011 | Zinc, total recoverable | DAILY MX | <= 223 ug/L | all year |
| 011 | Aluminum, total recoverable | DAILY MX | <= 750 ug/L | all year |
| 011 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 011 | Lead, total recoverable | DAILY MX | report only | all year |
| 011 | Copper, total recoverable | DAILY MX | report only | all year |
| 011 | Chromium, hexavalent dissolved [as Cr] | DAILY MX | <= 16 ug/L | all year |
| 011 | Antimony, total recoverable | DAILY MX | report only | all year |
| 011 | Chromium, trivalent total recoverable | DAILY MX | <= 182 ug/L | all year |
| 011 | Benzene | DAILY MX | report only | all year |
| 011 | Chloride | DAILY MX | <= 860 mg/L | all year |
| 011 | Mercury, total recoverable | DAILY MX | report only | all year |
| 011 | Storm water flow | DAILY MX | report only | all year |
| 011 | Chlorides + Sulfates | DAILY MX | <= 1000 mg/L | all year |
| 015 | Sulfate [as S] | DAILY MX | report only | all year |
| 015 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 120 mg/L | all year |
| 015 | pH | MINIMUM | >= 6.5 SU | all year |
| 015 | pH | MAXIMUM | <= 9 SU | all year |
| 015 | Solids, total suspended | DAILY MX | <= 80 mg/L | all year |
| 015 | Solids, settleable | DAILY MX | <= 1.5 mL/L | all year |
| 015 | Oil and grease [soxhlet extr.] tot. | DAILY MX | <= 15 mg/L | all year |
| 015 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8.4 mg/L | Apr, Jul, Aug, Sep, Oct, Nov, Dec |
| 015 | Nitrogen, ammonia total [as N] | DAILY MX | <= 12.1 mg/L | Jan, Feb, May |
| 015 | Nitrogen, ammonia total [as N] | DAILY MX | <= 10.1 mg/L | Mar, Jun, Dec |
| 015 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 015 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 015 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 015 | Fluoride, total [as F] | DAILY MX | report only | all year |
| 015 | Arsenic, total recoverable | DAILY MX | report only | all year |
| 015 | Iron, total recoverable | DAILY MX | <= 1801 ug/L | all year |
| 015 | Selenium, total recoverable | DAILY MX | <= 8 ug/L | all year |
| 015 | Thallium, total recoverable | DAILY MX | report only | all year |
| 015 | Beryllium, total recoverable [as Be] | DAILY MX | report only | all year |
| 015 | Nickel, total recoverable | DAILY MX | report only | all year |
| 015 | Silver total recoverable | DAILY MX | report only | all year |
| 015 | Zinc, total recoverable | DAILY MX | report only | all year |
| 015 | Aluminum, total recoverable | DAILY MX | <= 750 ug/L | all year |
| 015 | Cadmium, total recoverable | DAILY MX | <= 1.8 ug/L | all year |
| 015 | Lead, total recoverable | DAILY MX | <= 12.9 ug/L | all year |
| 015 | Copper, total recoverable | DAILY MX | <= 25 ug/L | all year |
| 015 | Chromium, hexavalent dissolved [as Cr] | DAILY MX | report only | all year |
| 015 | Antimony, total recoverable | DAILY MX | report only | all year |
| 015 | Chromium, trivalent total recoverable | DAILY MX | report only | all year |
| 015 | Benzene | DAILY MX | report only | all year |
| 015 | Mercury, total recoverable | DAILY MX | report only | all year |
| 015 | Storm water flow | DAILY MX | report only | all year |
| 015 | Chlorides + Sulfates | DAILY MX | report only | all year |
| 020 | Sulfate [as S] | DAILY MX | report only | all year |
| 020 | Oxygen demand, chem. [high level] [COD] | DAILY MX | <= 120 mg/L | all year |
| 020 | pH | MINIMUM | >= 6.5 SU | all year |
| 020 | pH | MAXIMUM | <= 9 SU | all year |
| 020 | Solids, total suspended | DAILY MX | <= 80 mg/L | all year |
| 020 | Solids, settleable | DAILY MX | <= 1.5 mg/L | all year |
| 020 | Oil and grease [soxhlet extr.] tot. | DAILY MX | <= 15 mg/L | all year |
| 020 | Nitrogen, ammonia total [as N] | DAILY MX | <= 10.1 mg/L | Apr, May, Jun |
| 020 | Nitrogen, ammonia total [as N] | DAILY MX | <= 8.4 mg/L | Jul, Aug, Sep, Oct, Nov, Dec |
| 020 | Nitrogen, ammonia total [as N] | DAILY MX | <= 12.1 mg/L | Jan, Feb, Mar |
| 020 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | all year |
| 020 | Nitrite + Nitrate total [as N] | DAILY MX | report only | all year |
| 020 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 020 | Fluoride | DAILY MX | report only | all year |
| 020 | Arsenic, total recoverable | DAILY MX | report only | all year |
| 020 | Iron, total recoverable | DAILY MX | <= 4000 ug/L | all year |
| 020 | Selenium, total recoverable | DAILY MX | <= 8 ug/L | all year |
| 020 | Thallium, total recoverable | DAILY MX | report only | all year |
| 020 | Beryllium, total recoverable [as Be] | DAILY MX | report only | all year |
| 020 | Nickel, total recoverable | DAILY MX | report only | all year |
| 020 | Silver total recoverable | DAILY MX | report only | all year |
| 020 | Zinc, total recoverable | DAILY MX | <= 223 ug/L | all year |
| 020 | Aluminum, total recoverable | DAILY MX | <= 750 ug/L | all year |
| 020 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 020 | Lead, total recoverable | DAILY MX | report only | all year |
| 020 | Copper, total recoverable | DAILY MX | report only | all year |
| 020 | Antimony, total recoverable | DAILY MX | report only | all year |
| 020 | Chromium, trivalent total recoverable | DAILY MX | <= 182 ug/L | all year |
| 020 | Benzene | DAILY MX | report only | all year |
| 020 | Chloride | DAILY MX | <= 860 mg/L | all year |
| 020 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 020 | Mercury, total recoverable | DAILY MX | report only | all year |
| 020 | Chromium, hexavalent tot recoverable | DAILY MX | <= 16 ug/L | all year |
| 020 | Chlorides + Sulfates | DAILY MX | <= 1000 mg/L | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states