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Sanitary Services, Cushing, Oklahoma. NPDES permit OK0043320, in force until Jul 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 180 mg/L | all year | 007 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 360 mg/L | all year | 007 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 135.11 lb/d | all year | 007 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 270.22 lb/d | all year | 007 |
| pH | minimum | ≥ 6.5 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 007 |
| Solids, total suspended | monthly average | ≤ 22.52 lb/d | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 33.78 lb/d | all year | 007 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 007 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 007 |
| Oil and grease, hexane extr method | monthly average | ≤ 7.51 lb/d | all year | 007 |
| Oil and grease, hexane extr method | daily maximum | ≤ 11.26 lb/d | all year | 007 |
| Carbon, tot organic [TOC] | monthly average | ≤ 75 mg/L | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 95 mg/L | all year | 007 |
| Carbon, tot organic [TOC] | monthly average | ≤ 56.3 lb/d | all year | 007 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 71.31 lb/d | all year | 007 |
| Sulfate, total [as SO4] | monthly average | ≤ 1463 mg/L | all year | 007 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1589 mg/L | all year | 007 |
| Sulfate, total [as SO4] | monthly average | ≤ 1098 lb/d | all year | 007 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1193 lb/d | all year | 007 |
| Cadmium, total [as Cd] | monthly average | report only (ug/L) | all year | 007 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 007 |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year | 007 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 007 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year | 007 |
| Manganese, total [as Mn] | monthly average | report only (mg/L) | all year | 007 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 007 |
| Selenium, total [as Se] | monthly average | ≤ 19.3 ug/L | all year | 007 |
| Selenium, total [as Se] | daily maximum | ≤ 36.76 ug/L | all year | 007 |
| Selenium, total [as Se] | monthly average | ≤ .0145 lb/d | all year | 007 |
| Selenium, total [as Se] | daily maximum | ≤ .0276 lb/d | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Chlorine, total residual | instantaneous maximum | ≤ .099 mg/L | all year | 007 |
| Phenolic compounds, total | monthly average | report only (ug/L) | all year | 007 |
| Phenolic compounds, total | daily maximum | report only (ug/L) | all year | 007 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 180 mg/L | all year | 008 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 360 mg/L | all year | 008 |
| Oxygen demand, chem. [high level] [COD] | monthly average | ≤ 135.11 lb/d | all year | 008 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | ≤ 270.22 lb/d | all year | 008 |
| pH | minimum | ≥ 6.5 SU | all year | 008 |
| pH | maximum | ≤ 9 SU | all year | 008 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 008 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 008 |
| Solids, total suspended | monthly average | ≤ 22.52 lb/d | all year | 008 |
| Solids, total suspended | daily maximum | ≤ 33.78 lb/d | all year | 008 |
| Oil and grease, hexane extr method | monthly average | ≤ 10 mg/L | all year | 008 |
| Oil and grease, hexane extr method | daily maximum | ≤ 15 mg/L | all year | 008 |
| Oil and grease, hexane extr method | monthly average | ≤ 7.51 lb/d | all year | 008 |
| Oil and grease, hexane extr method | daily maximum | ≤ 11.26 lb/d | all year | 008 |
| Carbon, tot organic [TOC] | monthly average | ≤ 75 mg/L | all year | 008 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 95 mg/L | all year | 008 |
| Carbon, tot organic [TOC] | monthly average | ≤ 56.3 lb/d | all year | 008 |
| Carbon, tot organic [TOC] | daily maximum | ≤ 71.31 lb/d | all year | 008 |
| Sulfate, total [as SO4] | monthly average | ≤ 1463 mg/L | all year | 008 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1589 mg/L | all year | 008 |
| Sulfate, total [as SO4] | monthly average | ≤ 1098 lb/d | all year | 008 |
| Sulfate, total [as SO4] | daily maximum | ≤ 1193 lb/d | all year | 008 |
| Cadmium, total [as Cd] | monthly average | report only (ug/L) | all year | 008 |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year | 008 |
| Chromium, total [as Cr] | monthly average | report only (ug/L) | all year | 008 |
| Chromium, total [as Cr] | daily maximum | report only (ug/L) | all year | 008 |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year | 008 |
| Manganese, total [as Mn] | monthly average | report only (mg/L) | all year | 008 |
| Manganese, total [as Mn] | daily maximum | report only (mg/L) | all year | 008 |
| Selenium, total [as Se] | monthly average | ≤ 19.3 ug/L | all year | 008 |
| Selenium, total [as Se] | daily maximum | ≤ 36.76 ug/L | all year | 008 |
| Selenium, total [as Se] | monthly average | ≤ .0145 lb/d | all year | 008 |
| Selenium, total [as Se] | daily maximum | ≤ .0276 lb/d | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Chlorine, total residual | instantaneous maximum | ≤ .099 mg/L | all year | 008 |
| Phenolic compounds, total | monthly average | report only (ug/L) | all year | 008 |
| Phenolic compounds, total | daily maximum | report only (ug/L) | all year | 008 |
Cited limits by parameter: Oklahoma's rules and the federal ones.
Same industry: the 4 Sanitary Services permits in Oklahoma.
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