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Sewage treatment plant, major discharger, Crescent City, California. NPDES permit CA0022756, in force until Jan 31, 2029. Last 12 months: over a limit 3 times (last June 2026), 42 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Coliform, total general, monthly median | 170 MPN/100mL | ≤ 70 MPN/100mL | 143% |
| June 2026 | DDT, monthly average | .018 ug/L | ≤ .0051 ug/L | 253% |
| June 2026 | pH, instantaneous minimum | 5.51 SU | ≥ 6 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Turbidity | monthly average | ≤ 75 NTU | all year | EFF1 |
| Turbidity | monthly average | ≤ 75 NTU | all year | EFF1 |
| Turbidity | weekly average | ≤ 100 NTU | all year | EFF1 |
| Turbidity | weekly average | ≤ 100 NTU | all year | EFF1 |
| Turbidity | instantaneous maximum | ≤ 225 NTU | all year | EFF1 |
| Turbidity | instantaneous maximum | ≤ 225 NTU | all year | EFF1 |
| Radioactivity | daily maximum | report only (pCi/L) | all year | EFF1 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | EFF1 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | EFF1 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | EFF1 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | EFF1 |
| pH | instantaneous minimum | ≥ 6 SU | all year | EFF1 |
| pH | instantaneous minimum | ≥ 6 SU | all year | EFF1 |
| pH | instantaneous maximum | ≤ 9 SU | all year | EFF1 |
| pH | instantaneous maximum | ≤ 9 SU | all year | EFF1 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | EFF1 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | EFF1 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF1 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | EFF1 |
| Solids, settleable | monthly average | ≤ 1 mL/L | all year | EFF1 |
| Solids, settleable | monthly average | ≤ 1 mL/L | all year | EFF1 |
| Solids, settleable | weekly average | ≤ 1.5 mL/L | all year | EFF1 |
| Solids, settleable | weekly average | ≤ 1.5 mL/L | all year | EFF1 |
| Solids, settleable | instantaneous maximum | ≤ 3 mL/L | all year | EFF1 |
| Solids, settleable | instantaneous maximum | ≤ 3 mL/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 72 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 72 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | instantaneous maximum | ≤ 180 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | instantaneous maximum | ≤ 180 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | 6-month median | ≤ 18 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | 6-month median | ≤ 18 mg/L | all year | EFF1 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (ug/L) | all year | EFF1 |
| Cyanide, total [as CN] | daily maximum | report only (ug/L) | all year | EFF1 |
| Arsenic, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Thallium, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Beryllium, total recoverable [as Be] | daily maximum | report only (ug/L) | all year | EFF1 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (ug/L) | all year | EFF1 |
| Chromium, trivalent [as Cr] | daily maximum | report only (ug/L) | all year | EFF1 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Silver total recoverable | daily maximum | ≤ 79 ug/L | all year | EFF1 |
| Silver total recoverable | instantaneous maximum | ≤ 200 ug/L | all year | EFF1 |
| Silver total recoverable | 6-month median | ≤ 16 ug/L | all year | EFF1 |
| Silver total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Copper, total recoverable | daily maximum | ≤ 300 ug/L | all year | EFF1 |
| Copper, total recoverable | daily maximum | ≤ 300 ug/L | all year | EFF1 |
| Copper, total recoverable | instantaneous maximum | ≤ 840 ug/L | all year | EFF1 |
| Copper, total recoverable | instantaneous maximum | ≤ 840 ug/L | all year | EFF1 |
| Copper, total recoverable | 6-month median | ≤ 32 ug/L | all year | EFF1 |
| Copper, total recoverable | 6-month median | ≤ 32 ug/L | all year | EFF1 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Antimony, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Oil and grease | monthly average | ≤ 24 mg/L | all year | EFF1 |
| Oil and grease | monthly average | ≤ 24 mg/L | all year | EFF1 |
| Oil and grease | weekly average | ≤ 40 mg/L | all year | EFF1 |
| Oil and grease | weekly average | ≤ 40 mg/L | all year | EFF1 |
| Oil and grease | instantaneous maximum | ≤ 75 mg/L | all year | EFF1 |
| Oil and grease | instantaneous maximum | ≤ 75 mg/L | all year | EFF1 |
| 2-Methyl-4,6-dinitrophenol | daily maximum | report only (ug/L) | all year | EFF1 |
| Tributyltin | daily maximum | report only (ug/L) | all year | EFF1 |
| Polynuclear Aromatic Hydrocarbons [PAHs] | daily maximum | report only (ug/L) | all year | EFF1 |
| Dichlorobromomethane | daily maximum | report only (ug/L) | all year | EFF1 |
| Carbon tetrachloride | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,2-Dichloroethane | daily maximum | report only (ug/L) | all year | EFF1 |
| Dibromochloromethane | daily maximum | report only (ug/L) | all year | EFF1 |
| Chloroform | daily maximum | report only (ug/L) | all year | EFF1 |
| Toluene | daily maximum | report only (ug/L) | all year | EFF1 |
| Benzene | daily maximum | report only (ug/L) | all year | EFF1 |
| Acrolein | daily maximum | report only (ug/L) | all year | EFF1 |
| Acrylonitrile | daily maximum | report only (ug/L) | all year | EFF1 |
| Bis[2-chloroethyl] ether | daily maximum | report only (ug/L) | all year | EFF1 |
| Bis[2-chloroethoxy]methane | daily maximum | report only (ug/L) | all year | EFF1 |
| Bis[2-chloroisopropyl] ether | daily maximum | report only (ug/L) | all year | EFF1 |
| Chlorobenzene | daily maximum | report only (ug/L) | all year | EFF1 |
| Diethyl phthalate | daily maximum | report only (ug/L) | all year | EFF1 |
| Dimethyl phthalate | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,2-Diphenylhydrazine | daily maximum | report only (ug/L) | all year | EFF1 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | EFF1 |
| Fluoranthene | daily maximum | report only (ug/L) | all year | EFF1 |
| Hexachlorocyclopentadiene | daily maximum | report only (ug/L) | all year | EFF1 |
| Hexachlorobutadiene | daily maximum | report only (ug/L) | all year | EFF1 |
| Hexachloroethane | daily maximum | report only (ug/L) | all year | EFF1 |
| Isophorone | daily maximum | report only (ug/L) | all year | EFF1 |
| Methylene chloride | daily maximum | report only (ug/L) | all year | EFF1 |
| N-Nitrosodi-N-propylamine | daily maximum | report only (ug/L) | all year | EFF1 |
| N-Nitrosodiphenylamine | daily maximum | report only (ug/L) | all year | EFF1 |
| N-Nitrosodimethylamine [NDMA] | daily maximum | report only (ug/L) | all year | EFF1 |
| Nitrobenzene | daily maximum | report only (ug/L) | all year | EFF1 |
| Tetrachloroethylene | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,1-Dichloroethylene | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,1,1-Trichloroethane | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,1,2-Trichloroethane | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,1,2,2-Tetrachloroethane | daily maximum | report only (ug/L) | all year | EFF1 |
| 1,4-Dichlorobenzene | daily maximum | report only (ug/L) | all year | EFF1 |
| 2,4-Dinitrotoluene | daily maximum | report only (ug/L) | all year | EFF1 |
| 2,4-Dinitrophenol | daily maximum | report only (ug/L) | all year | EFF1 |
| 2,4,6-Trichlorophenol | daily maximum | report only (ug/L) | all year | EFF1 |
| 3,3'-Dichlorobenzidine | daily maximum | report only (ug/L) | all year | EFF1 |
| Di[2-ethylhexyl] phthalate [DEHP] | daily maximum | report only (ug/L) | all year | EFF1 |
| Di-n-butyl phthalate | daily maximum | report only (ug/L) | all year | EFF1 |
| Benzidine | daily maximum | report only (ug/L) | all year | EFF1 |
| Vinyl chloride | daily maximum | report only (ug/L) | all year | EFF1 |
| Trichloroethylene | daily maximum | report only (ug/L) | all year | EFF1 |
| Aldrin | daily maximum | report only (ug/L) | all year | EFF1 |
| Chlordane [tech mix. and metabolites] | daily maximum | report only (ug/L) | all year | EFF1 |
| DDT | monthly average | ≤ .0051 ug/L | all year | EFF1 |
| DDT/DDD/DDE, sum of p,p' & o,p' isomers | daily maximum | report only (ug/L) | all year | EFF1 |
| Dieldrin | monthly average | ≤ .0012 ug/L | all year | EFF1 |
| Dieldrin | daily maximum | report only (ug/L) | all year | EFF1 |
| Endosulfan, total | daily maximum | ≤ .54 ug/L | all year | EFF1 |
| Endosulfan, total | instantaneous maximum | ≤ .81 ug/L | all year | EFF1 |
| Endosulfan, total | 6-month median | ≤ .27 ug/L | all year | EFF1 |
| Endosulfan, total | daily maximum | report only (ug/L) | all year | EFF1 |
| Endrin | daily maximum | ≤ .12 ug/L | all year | EFF1 |
| Endrin | daily maximum | ≤ .12 ug/L | all year | EFF1 |
| Endrin | instantaneous maximum | ≤ .18 ug/L | all year | EFF1 |
| Endrin | instantaneous maximum | ≤ .18 ug/L | all year | EFF1 |
| Endrin | 6-month median | ≤ .06 ug/L | all year | EFF1 |
| Endrin | 6-month median | ≤ .06 ug/L | all year | EFF1 |
| Endrin | daily maximum | report only (ug/L) | all year | EFF1 |
| Toxaphene | daily maximum | report only (ug/L) | all year | EFF1 |
| Heptachlor | monthly average | ≤ .0051 ug/L | all year | EFF1 |
| Heptachlor | daily maximum | report only (ug/L) | all year | EFF1 |
| Heptachlor epoxide | daily maximum | report only (ug/L) | all year | EFF1 |
| Hexachlorobenzene | daily maximum | report only (ug/L) | all year | EFF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | EFF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | EFF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | EFF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | EFF1 |
| Chlorine, total residual | daily maximum | ≤ 240 ug/L | all year | EFF1 |
| Chlorine, total residual | daily maximum | ≤ 240 ug/L | all year | EFF1 |
| Chlorine, total residual | instantaneous maximum | ≤ 1800 ug/L | all year | EFF1 |
| Chlorine, total residual | instantaneous maximum | ≤ 1800 ug/L | all year | EFF1 |
| Chlorine, total residual | 6-month median | ≤ 60 ug/L | all year | EFF1 |
| Chlorine, total residual | 6-month median | ≤ 60 ug/L | all year | EFF1 |
| Chlorine, total residual | daily maximum | report only (ug/L) | all year | EFF1 |
| Polychlorinated biphenyls [PCBs], sum of Aroclors | daily maximum | report only (ug/L) | all year | EFF1 |
| Enterococci | geometric mean | ≤ 30 CFU/100mL | all year | EFF1 |
| Enterococci | geometric mean | ≤ 30 CFU/100mL | all year | EFF1 |
| Enterococci | single sample | ≤ 110 CFU/100mL | all year | EFF1 |
| Enterococci | single sample | ≤ 110 CFU/100mL | all year | EFF1 |
| Mercury, total recoverable | daily maximum | report only (ug/L) | all year | EFF1 |
| Phenols, chlorinated | daily maximum | report only (ug/L) | all year | EFF1 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 MPN/100mL | all year | EFF1 |
| Coliform, fecal general | 30-day geometric mean | ≤ 200 MPN/100mL | all year | EFF1 |
| Coliform, total general | monthly median | ≤ 70 MPN/100mL | all year | EFF1 |
| Coliform, total general | monthly median | ≤ 70 MPN/100mL | all year | EFF1 |
| Coliform, total general | 90th percentile | ≤ 230 MPN/100mL | all year | EFF1 |
| Coliform, total general | 90th percentile | ≤ 230 MPN/100mL | all year | EFF1 |
| 1,3-Dichloropropene | daily maximum | report only (ug/L) | all year | EFF1 |
| Hexachlorocyclohexane, total | daily maximum | report only (ug/L) | all year | EFF1 |
| Phenolic compounds, unchlorinated | daily maximum | report only (ug/L) | all year | EFF1 |
| Halomethanes | daily maximum | report only (ug/L) | all year | EFF1 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | EFF1 |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year | EFF1 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | EFF1 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | EFF1 |
| Dichlorobenzene | daily maximum | report only (ug/L) | all year | EFF1 |
| TCDD equivalents | daily maximum | report only (ug/L) | all year | EFF1 |
| Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A affinis | daily maximum | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A affinis | monthly median | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A affinis | daily maximum | report only (% effect) | all year | EFF1 |
| Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr Mytilus spp | daily maximum | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr Mytilus spp | monthly median | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr Mytilus spp | daily maximum | report only (% effect) | all year | EFF1 |
| Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min S purpuratus | daily maximum | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min S purpuratus | monthly median | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min S purpuratus | daily maximum | report only (% effect) | all year | EFF1 |
| Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min D excentricus | daily maximum | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min D excentricus | monthly median | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min D excentricus | daily maximum | report only (% effect) | all year | EFF1 |
| Chronic Mthd Germination Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera | daily maximum | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Germination Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera | monthly median | report only (pass=0;fail=1) | all year | EFF1 |
| Chronic Mthd Germination Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera | daily maximum | report only (% effect) | all year | EFF1 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | INF1 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | INF1 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | INF1 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | INF1 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | INF1 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | INF1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | INF1 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | INF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF1 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | INF1 |
Cited limits by parameter: California's rules and the federal ones.
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