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Sewage treatment plant, major discharger, San Francisco, California. NPDES permit CA0037664 expired Sep 30, 2018; its limits still apply. Last 12 months: no values over a limit, 80 of 141 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | highest weekly average | ≤ 45 mg/L | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 001 |
| pH | minimum | report only (SU) | all year | 001 |
| pH | maximum | ≤ 9 SU | all year | 001 |
| pH | maximum | report only (SU) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | highest weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (kg/d) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (kg/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 190 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 190 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 290 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 290 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | report only (kg/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (kg/d) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (kg/d) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (kg/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (kg/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (kg/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (kg/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (kg/d) | all year | 001 |
| Nitrogen, inorganic total | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, inorganic total | monthly average | report only (kg/d) | all year | 001 |
| Nitrogen, inorganic total | daily maximum | report only (kg/d) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (kg/d) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (kg/d) | all year | 001 |
| Phosphorus, dissolved reactive [drp as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, dissolved reactive [drp as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, dissolved reactive [drp as P] | monthly average | report only (kg/d) | all year | 001 |
| Phosphorus, dissolved reactive [drp as P] | daily maximum | report only (kg/d) | all year | 001 |
| Cyanide, total [as CN] | monthly average | ≤ 20 ug/L | all year | 001 |
| Cyanide, total [as CN] | daily maximum | ≤ 43 ug/L | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 53 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 76 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Oil and grease | monthly average | ≤ 10 mg/L | all year | 001 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | 001 |
| Oil and grease | daily maximum | report only (mg/L) | all year | 001 |
| 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,7,8-Pentachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,7,8-Pentachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 2,3,4,7,8-Pentachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,4,7,8-Hexachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,6,7,8-Hexachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,7,8,9-Hexachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 2,3,4,6,7,8-Hexachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,4,6,7,8-Heptachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,4,7,8,9-Heptachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 1,2-Diphenylhydrazine | monthly average | ≤ 5.4 ug/L | all year | 001 |
| 1,2-Diphenylhydrazine | daily maximum | ≤ 11 ug/L | all year | 001 |
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | daily maximum | report only (ng/L) | all year | 001 |
| 2,3,7,8-Tetrachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| Polychlorinated biphenyls [PCBs] | monthly average | ≤ .012 ug/L | all year | 001 |
| Polychlorinated biphenyls [PCBs] | daily maximum | ≤ .017 ug/L | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ 0 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ 0 mg/L | all year | 001 |
| 1,2,3,4,6,7,8,9-Octachlorodibenzofuran | daily maximum | report only (ng/L) | all year | 001 |
| Enterococci | monthly geometric mean | ≤ 35 MPN/100mL | all year | 001 |
| Enterococci | monthly geometric mean | ≤ 35 MPN/100mL | all year | 001 |
| Mercury, total recoverable | monthly average | ≤ .066 ug/L | all year | 001 |
| Mercury, total recoverable | highest weekly average | ≤ .072 ug/L | all year | 001 |
| Mercury, total recoverable | annual total | ≤ 1.6 kg/yr | all year | 001 |
| Coliform, fecal general | monthly median | ≤ 500 MPN/100mL | all year | 001 |
| Coliform, fecal general | monthly average | report only (MPN/100mL) | all year | 001 |
| Coliform, fecal general | 90th percentile | ≤ 1100 MPN/100mL | all year | 001 |
| Coliform, fecal general | daily maximum | report only (MPN/100mL) | all year | 001 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Chemical Oxygen Demand [COD] | monthly average | report only (mg/L) | all year | 001 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 001 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 001 |
| TCDD equivalents | monthly average | ≤ .000014 ng/L | all year | 001 |
| TCDD equivalents | daily maximum | ≤ .000028 ng/L | all year | 001 |
| %Surv Static 96Hr Acute Pimphales Promelas | minimum | report only (% survival) | all year | 001 |
| %Surv Static 96Hr Acute Pimphales Promelas | average | report only (% survival) | all year | 001 |
| %Surv Static 96Hr Acute Oncorhynchus Mykiss | minimum | report only (% survival) | all year | 001 |
| %Surv Static 96Hr Acute Oncorhynchus Mykiss | average | report only (% survival) | all year | 001 |
| % Survival Flow Through 96Hr Acute Oncorhynchus mykiss | minimum 90th percentile | ≥ 70 % survival | all year | 001 |
| % Survival Flow Through 96Hr Acute Oncorhynchus mykiss | minimum median | ≥ 90 % survival | all year | 001 |
| TU Static 72Hr Chronic Strongyl. purpuratus | average | report only (tox chronic) | all year | 001 |
| TU Static 72Hr Chronic Strongyl. purpuratus | daily maximum | report only (tox chronic) | all year | 001 |
| Static 72Hr Chronic Dendraster excentricus | average | report only (tox chronic) | all year | 001 |
| Static 72Hr Chronic Dendraster excentricus | daily maximum | report only (tox chronic) | all year | 001 |
| pH | minimum | report only (SU) | all year | 002 |
| pH | maximum | report only (SU) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 002 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Oil and grease | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | instantaneous maximum | ≤ 0 mg/L | all year | 002 |
| Enterococci | monthly geometric mean | ≤ 35 MPN/100mL | all year | 002 |
| Coliform, fecal general | monthly average | report only (MPN/100mL) | all year | 002 |
| Coliform, fecal general | daily maximum | report only (MPN/100mL) | all year | 002 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 002 |
| pH | minimum | report only (SU) | all year | 003 |
| pH | maximum | report only (SU) | all year | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | 003 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 003 |
| Oil and grease | daily maximum | report only (mg/L) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Chlorine, total residual | instantaneous maximum | ≤ 0 mg/L | all year | 003 |
| Enterococci | monthly geometric mean | ≤ 35 MPN/100mL | all year | 003 |
| Coliform, fecal general | monthly average | report only (MPN/100mL) | all year | 003 |
| Coliform, fecal general | daily maximum | report only (MPN/100mL) | all year | 003 |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year | 003 |
| %Surv Static 96Hr Acute Pimphales Promelas | minimum | report only (% survival) | all year | 003 |
| %Surv Static 96Hr Acute Pimphales Promelas | average | report only (% survival) | all year | 003 |
| %Surv Static 96Hr Acute Oncorhynchus Mykiss | minimum | report only (% survival) | all year | 003 |
| %Surv Static 96Hr Acute Oncorhynchus Mykiss | average | report only (% survival) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 025 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 025 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 029 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 031A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 031A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 041 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 041 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 043 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 043 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | INF |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | INF |
| Solids, total suspended | monthly average | report only (mg/L) | all year | INF |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | INF |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | INF |
| Nitrogen, ammonia total [as N] | monthly average | report only (kg/d) | all year | INF |
| Nitrogen, ammonia total [as N] | daily maximum | report only (kg/d) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (kg/d) | all year | INF |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (kg/d) | all year | INF |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | INF |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | INF |
| Nitrite + Nitrate total [as N] | monthly average | report only (kg/d) | all year | INF |
| Nitrite + Nitrate total [as N] | daily maximum | report only (kg/d) | all year | INF |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | INF |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | INF |
| Phosphorus, total [as P] | monthly average | report only (kg/d) | all year | INF |
| Phosphorus, total [as P] | daily maximum | report only (kg/d) | all year | INF |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | INF |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | INF |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF |
Cited limits by parameter: California's rules and the federal ones.
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