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Refuse Systems, Columbia, Missouri. NPDES permit MO0112640 expired Mar 31, 2025; its limits still apply. Last 12 months: no values over a limit, 5 of 33 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 002 |
| pH | minimum | ≥ 6.5 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 80 mg/L | all year | 002 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 002 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 002 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | all year | 002 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Iron, total recoverable | daily maximum | ≤ 4000 ug/L | all year | 002 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 002 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Aluminum, total recoverable | daily maximum | ≤ 750 ug/L | all year | 002 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 002 |
| Rainfall | daily maximum | report only (in) | all year | 002 |
| Storm water flow | daily maximum | report only (MGD) | all year | 002 |
| Chlorides + Sulfates | daily maximum | ≤ 1000 mg/L | all year | 002 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 003 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 003 |
| pH | minimum | ≥ 6.5 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 80 mg/L | all year | 003 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 003 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 003 |
| Fluoride | daily maximum | report only (mg/L) | all year | 003 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Iron, total recoverable | daily maximum | ≤ 4000 ug/L | all year | 003 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 003 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Aluminum, total recoverable | daily maximum | ≤ 750 ug/L | all year | 003 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 003 |
| Rainfall | daily maximum | report only (in) | all year | 003 |
| Storm water flow | daily maximum | report only (MGD) | all year | 003 |
| Chlorides + Sulfates | daily maximum | ≤ 1000 mg/L | all year | 003 |
| Sulfate [as S] | daily maximum | report only (mg/L) | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 004 |
| pH | minimum | ≥ 6.5 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 80 mg/L | all year | 004 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 004 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 004 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 004 |
| Fluoride | daily maximum | report only (mg/L) | all year | 004 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Iron, total recoverable | daily maximum | ≤ 4000 ug/L | all year | 004 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 004 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Aluminum, total recoverable | daily maximum | ≤ 750 ug/L | all year | 004 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 004 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 004 |
| Rainfall | daily maximum | report only (in) | all year | 004 |
| Storm water flow | daily maximum | report only (MGD) | all year | 004 |
| Chlorides + Sulfates | daily maximum | ≤ 1000 mg/L | all year | 004 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 005 |
| pH | minimum | ≥ 6.5 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 005 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Rainfall | daily maximum | report only (in) | all year | 005 |
| Storm water flow | daily maximum | report only (MGD) | all year | 005 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 006 |
| pH | minimum | ≥ 6.5 SU | all year | 006 |
| pH | maximum | ≤ 9 SU | all year | 006 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 006 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 006 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Rainfall | daily maximum | report only (in) | all year | 006 |
| Storm water flow | daily maximum | report only (MGD) | all year | 006 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 007 |
| pH | minimum | ≥ 6.5 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 80 mg/L | all year | 007 |
| Solids, settleable | daily maximum | report only (mL/L) | all year | 007 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | report only (mg/L) | all year | 007 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 007 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 007 |
| Fluoride | daily maximum | report only (mg/L) | all year | 007 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Iron, total recoverable | daily maximum | ≤ 4000 ug/L | all year | 007 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | 007 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Aluminum, total recoverable | daily maximum | ≤ 750 ug/L | all year | 007 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 007 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 007 |
| Nitrogen, ammonia, total [as NH3] | daily maximum | report only (mg/L) | all year | 007 |
| Rainfall | daily maximum | report only (in) | all year | 007 |
| Storm water flow | daily maximum | report only (MGD) | all year | 007 |
| Chlorides + Sulfates | daily maximum | ≤ 1000 mg/L | all year | 007 |
| pH | minimum | report only (SU) | all year | SM1 |
| pH | maximum | report only (SU) | all year | SM1 |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | all year | SM1 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | SM1 |
Cited limits by parameter: Missouri's rules and the federal ones.
Same industry: the 40 Refuse Systems permits in Missouri.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MO0112640 · MCP: https://passage-data.com/mcp