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Encina Wastewater Authority

Sewage treatment plant, major discharger, Carlsbad, California. NPDES permit CA0107395 expired Oct 31, 2023; its limits still apply. Last 12 months: no values over a limit, 13 of 53 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall 001 form A monthly (20 values), outfall 001 form Q quarterly (8 values), outfall INF1 form A monthly (6 values), outfall INF2 form A monthly (6 values), outfall M001 form A monthly (25 values), outfall M002 form A monthly (25 values), and 2 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 4 of 78 reports late

Limits in force (268)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year001
Radioactivitydaily maximumreport only (pCi/L)all year001
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Cyanide, total [as CN]daily maximumreport only (lb/d)all year001
Arsenic, total recoverabledaily maximumreport only (ug/L)all year001
Arsenic, total recoverabledaily maximumreport only (lb/d)all year001
Selenium, total recoverabledaily maximumreport only (ug/L)all year001
Selenium, total recoverabledaily maximumreport only (lb/d)all year001
Thallium, total recoverabledaily maximumreport only (ug/L)all year001
Thallium, total recoverabledaily maximumreport only (lb/d)all year001
Beryllium, total recoverable [as Be]daily maximumreport only (ug/L)all year001
Beryllium, total recoverable [as Be]daily maximumreport only (lb/d)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (ug/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (lb/d)all year001
Chromium, trivalent [as Cr]daily maximumreport only (ug/L)all year001
Chromium, trivalent [as Cr]daily maximumreport only (lb/d)all year001
Nickel, total recoverabledaily maximumreport only (ug/L)all year001
Nickel, total recoverabledaily maximumreport only (lb/d)all year001
Silver total recoverabledaily maximumreport only (ug/L)all year001
Silver total recoverabledaily maximumreport only (lb/d)all year001
Zinc, total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverabledaily maximumreport only (lb/d)all year001
Cadmium, total recoverabledaily maximumreport only (ug/L)all year001
Cadmium, total recoverabledaily maximumreport only (lb/d)all year001
Lead, total recoverabledaily maximumreport only (ug/L)all year001
Lead, total recoverabledaily maximumreport only (lb/d)all year001
Chromium, total recoverabledaily maximumreport only (ug/L)all year001
Chromium, total recoverabledaily maximumreport only (lb/d)all year001
Copper, total recoverabledaily maximumreport only (ug/L)all year001
Copper, total recoverabledaily maximumreport only (lb/d)all year001
Antimony, total recoverabledaily maximumreport only (ug/L)all year001
Antimony, total recoverabledaily maximumreport only (lb/d)all year001
2-Methyl-4,6-dinitrophenoldaily maximumreport only (ug/L)all year001
2-Methyl-4,6-dinitrophenoldaily maximumreport only (lb/d)all year001
Tributyltindaily maximumreport only (ug/L)all year001
Tributyltindaily maximumreport only (lb/d)all year001
Polynuclear Aromatic Hydrocarbons [PAHs]daily maximumreport only (ug/L)all year001
Polynuclear Aromatic Hydrocarbons [PAHs]daily maximumreport only (lb/d)all year001
Dichlorobromomethanedaily maximumreport only (ug/L)all year001
Dichlorobromomethanedaily maximumreport only (lb/d)all year001
Carbon tetrachloridedaily maximumreport only (ug/L)all year001
Carbon tetrachloridedaily maximumreport only (lb/d)all year001
1,2-Dichloroethanedaily maximumreport only (ug/L)all year001
1,2-Dichloroethanedaily maximumreport only (lb/d)all year001
Dibromochloromethanedaily maximumreport only (ug/L)all year001
Dibromochloromethanedaily maximumreport only (lb/d)all year001
Chloroformdaily maximumreport only (ug/L)all year001
Chloroformdaily maximumreport only (lb/d)all year001
Toluenedaily maximumreport only (ug/L)all year001
Toluenedaily maximumreport only (lb/d)all year001
Benzenedaily maximumreport only (ug/L)all year001
Benzenedaily maximumreport only (lb/d)all year001
Acroleindaily maximumreport only (ug/L)all year001
Acroleindaily maximumreport only (lb/d)all year001
Acrylonitriledaily maximumreport only (ug/L)all year001
Acrylonitriledaily maximumreport only (lb/d)all year001
Bis[2-chloroethyl] etherdaily maximumreport only (ug/L)all year001
Bis[2-chloroethyl] etherdaily maximumreport only (lb/d)all year001
Bis[2-chloroethoxy]methanedaily maximumreport only (ug/L)all year001
Bis[2-chloroethoxy]methanedaily maximumreport only (lb/d)all year001
Bis[2-chloroisopropyl] etherdaily maximumreport only (ug/L)all year001
Bis[2-chloroisopropyl] etherdaily maximumreport only (lb/d)all year001
Chlorobenzenedaily maximumreport only (ug/L)all year001
Chlorobenzenedaily maximumreport only (lb/d)all year001
Diethyl phthalatedaily maximumreport only (ug/L)all year001
Diethyl phthalatedaily maximumreport only (lb/d)all year001
Dimethyl phthalatedaily maximumreport only (ug/L)all year001
Dimethyl phthalatedaily maximumreport only (lb/d)all year001
1,2-Diphenylhydrazinedaily maximumreport only (ug/L)all year001
1,2-Diphenylhydrazinedaily maximumreport only (lb/d)all year001
Ethylbenzenedaily maximumreport only (ug/L)all year001
Ethylbenzenedaily maximumreport only (lb/d)all year001
Fluoranthenedaily maximumreport only (ug/L)all year001
Fluoranthenedaily maximumreport only (lb/d)all year001
Hexachlorocyclopentadienedaily maximumreport only (ug/L)all year001
Hexachlorocyclopentadienedaily maximumreport only (lb/d)all year001
Hexachlorobutadienedaily maximumreport only (ug/L)all year001
Hexachlorobutadienedaily maximumreport only (lb/d)all year001
Hexachloroethanedaily maximumreport only (ug/L)all year001
Hexachloroethanedaily maximumreport only (lb/d)all year001
Isophoronedaily maximumreport only (ug/L)all year001
Isophoronedaily maximumreport only (lb/d)all year001
Methylene chloridedaily maximumreport only (ug/L)all year001
Methylene chloridedaily maximumreport only (lb/d)all year001
N-Nitrosodi-N-propylaminedaily maximumreport only (ug/L)all year001
N-Nitrosodi-N-propylaminedaily maximumreport only (lb/d)all year001
N-Nitrosodiphenylaminedaily maximumreport only (ug/L)all year001
N-Nitrosodiphenylaminedaily maximumreport only (lb/d)all year001
N-Nitrosodimethylamine [NDMA]daily maximumreport only (ug/L)all year001
N-Nitrosodimethylamine [NDMA]daily maximumreport only (lb/d)all year001
Nitrobenzenedaily maximumreport only (ug/L)all year001
Nitrobenzenedaily maximumreport only (lb/d)all year001
Tetrachloroethylenedaily maximumreport only (ug/L)all year001
Tetrachloroethylenedaily maximumreport only (lb/d)all year001
1,1-Dichloroethylenedaily maximumreport only (ug/L)all year001
1,1-Dichloroethylenedaily maximumreport only (lb/d)all year001
1,1,1-Trichloroethanedaily maximumreport only (ug/L)all year001
1,1,1-Trichloroethanedaily maximumreport only (lb/d)all year001
1,1,2-Trichloroethanedaily maximumreport only (ug/L)all year001
1,1,2-Trichloroethanedaily maximumreport only (lb/d)all year001
1,1,2,2-Tetrachloroethanedaily maximumreport only (ug/L)all year001
1,1,2,2-Tetrachloroethanedaily maximumreport only (lb/d)all year001
1,4-Dichlorobenzenedaily maximumreport only (ug/L)all year001
1,4-Dichlorobenzenedaily maximumreport only (lb/d)all year001
2,4-Dinitrotoluenedaily maximumreport only (ug/L)all year001
2,4-Dinitrotoluenedaily maximumreport only (lb/d)all year001
2,4-Dinitrophenoldaily maximumreport only (ug/L)all year001
2,4-Dinitrophenoldaily maximumreport only (lb/d)all year001
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year001
2,4,6-Trichlorophenoldaily maximumreport only (lb/d)all year001
3,3'-Dichlorobenzidinedaily maximumreport only (ug/L)all year001
3,3'-Dichlorobenzidinedaily maximumreport only (lb/d)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (lb/d)all year001
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year001
Di-n-butyl phthalatedaily maximumreport only (lb/d)all year001
Benzidinedaily maximumreport only (ug/L)all year001
Benzidinedaily maximumreport only (lb/d)all year001
Vinyl chloridedaily maximumreport only (ug/L)all year001
Vinyl chloridedaily maximumreport only (lb/d)all year001
Trichloroethylenedaily maximumreport only (ug/L)all year001
Trichloroethylenedaily maximumreport only (lb/d)all year001
Aldrindaily maximumreport only (ug/L)all year001
Aldrindaily maximumreport only (lb/d)all year001
Chlordane [tech mix. and metabolites]daily maximumreport only (ug/L)all year001
Chlordane [tech mix. and metabolites]daily maximumreport only (lb/d)all year001
DDT/DDD/DDE, sum of p,p' & o,p' isomersdaily maximumreport only (ug/L)all year001
DDT/DDD/DDE, sum of p,p' & o,p' isomersdaily maximumreport only (lb/d)all year001
Dieldrindaily maximumreport only (ug/L)all year001
Dieldrindaily maximumreport only (lb/d)all year001
Endosulfan, totaldaily maximumreport only (ug/L)all year001
Endosulfan, totaldaily maximumreport only (lb/d)all year001
Endrindaily maximumreport only (ug/L)all year001
Endrindaily maximumreport only (lb/d)all year001
Toxaphenedaily maximumreport only (ug/L)all year001
Toxaphenedaily maximumreport only (lb/d)all year001
Heptachlordaily maximumreport only (ug/L)all year001
Heptachlordaily maximumreport only (lb/d)all year001
Heptachlor epoxidedaily maximumreport only (ug/L)all year001
Heptachlor epoxidedaily maximumreport only (lb/d)all year001
Polychlorinated biphenyls [PCBs]daily maximumreport only (ug/L)all year001
Polychlorinated biphenyls [PCBs]daily maximumreport only (lb/d)all year001
Hexachlorobenzenedaily maximumreport only (ug/L)all year001
Hexachlorobenzenedaily maximumreport only (lb/d)all year001
Flow, in conduit or thru treatment plantmonthly average≤ 43.3 MGDMay–Oct001
Flow, in conduit or thru treatment plantmonthly average≤ 52.6 MGDJan, Feb, Mar, Apr, Nov, Dec001
Chlorine, total residual6-month median≤ 290 ug/Lall year001
Chlorine, total residualdaily maximum≤ 1200 ug/Lall year001
Chlorine, total residualinstantaneous maximum≤ 8700 ug/Lall year001
Chlorine, total residual6-month median≤ 100 lb/dall year001
Chlorine, total residualdaily maximum≤ 420 lb/dall year001
Enterococcidaily maximumreport only (CFU/100mL)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Mercury, total recoverabledaily maximumreport only (ug/L)all year001
Mercury, total recoverabledaily maximumreport only (lb/d)all year001
Phenols, chlorinateddaily maximumreport only (ug/L)all year001
Phenols, chlorinateddaily maximumreport only (lb/d)all year001
Coliform, fecal generaldaily maximumreport only (CFU/100mL)all year001
Coliform, total generaldaily maximumreport only (CFU/100mL)all year001
1,3-Dichloropropenedaily maximumreport only (ug/L)all year001
1,3-Dichloropropenedaily maximumreport only (lb/d)all year001
Hexachlorocyclohexane, totaldaily maximumreport only (ug/L)all year001
Hexachlorocyclohexane, totaldaily maximumreport only (lb/d)all year001
Phenolic compounds, unchlorinateddaily maximumreport only (ug/L)all year001
Phenolic compounds, unchlorinateddaily maximumreport only (lb/d)all year001
Halomethanesdaily maximumreport only (ug/L)all year001
Halomethanesdaily maximumreport only (lb/d)all year001
Dichlorobenzenedaily maximumreport only (ug/L)all year001
Dichlorobenzenedaily maximumreport only (lb/d)all year001
TCDD equivalentsdaily maximumreport only (ug/L)all year001
TCDD equivalentsdaily maximumreport only (lb/d)all year001
%Effect Static 48Hr Chronic Macrocystis pyriferamonthly medianreport only (% effect)all year001
%Effect Static 48Hr Chronic Haliotis rufescensmonthly medianreport only (% effect)all year001
%Effect Static Renewal 7 Day Chronic Atherinops affinismonthly medianreport only (% effect)all year001
%Effect Static 20Min Chronic Strongylocentrotus purpuratusmonthly medianreport only (% effect)all year001
%Effect Static 20Min Chronic Dendraster excentricusmonthly medianreport only (% effect)all year001
Pass/Fail Static 48Hr Chronic Macrocystis pyriferamonthly medianreport only (pass=0;fail=1)all year001
Pass/Fail Static 48Hr Chronic Macrocystis pyriferadaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static 48Hr Chronic Haliotis rufescensmonthly medianreport only (pass=0;fail=1)all year001
Pass/Fail Static 48Hr Chronic Haliotis rufescensdaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Atherinops affinismonthly medianreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Atherinops affinisdaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static 20 Minute Fertilization Chronic Strongylocentrotus purpuratusmonthly medianreport only (pass=0;fail=1)all year001
Pass/Fail Static 20 Minute Fertilization Chronic Strongylocentrotus purpuratusdaily maximumreport only (pass=0;fail=1)all year001
Pass/Fail Static 20 Minute Fertilization Chronic Dendraster excentricusmonthly medianreport only (pass=0;fail=1)all year001
Pass/Fail Static 20 Minute Fertilization Chronic Dendraster excentricusdaily maximumreport only (pass=0;fail=1)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF1
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF1
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF1
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF1
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearINF1
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearINF1
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF2
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF2
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF2
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF2
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearINF2
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearINF2
Turbiditymonthly average≤ 75 NTUall yearM001
Turbidityweekly average≤ 100 NTUall yearM001
Turbidityinstantaneous maximum≤ 225 NTUall yearM001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearM001
pHminimum≥ 6 SUall yearM001
pHmaximum≤ 9 SUall yearM001
Solids, total suspendedmonthly average≤ 30 mg/Lall yearM001
Solids, total suspendedweekly average≤ 45 mg/Lall yearM001
Solids, total suspendedmonthly average≤ 10000 lb/dall yearM001
Solids, total suspendedweekly average≤ 15000 lb/dall yearM001
Solids, settleablemonthly average≤ 1 mL/Lall yearM001
Solids, settleableweekly average≤ 1.5 mL/Lall yearM001
Solids, settleableinstantaneous maximum≤ 3 mL/Lall yearM001
Oil and greasemonthly average≤ 25 mg/Lall yearM001
Oil and greaseweekly average≤ 40 mg/Lall yearM001
Oil and greaseinstantaneous maximum≤ 75 mg/Lall yearM001
Oil and greasemonthly average≤ 8400 lb/dall yearM001
Oil and greaseweekly average≤ 14000 lb/dall yearM001
Flow, in conduit or thru treatment plantmonthly average≤ 40.5 MGDall yearM001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearM001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall yearM001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8400 lb/dall yearM001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 14000 lb/dall yearM001
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearM001
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearM001
Turbiditymonthly average≤ 75 NTUall yearM002
Turbidityweekly average≤ 100 NTUall yearM002
Turbidityinstantaneous maximum≤ 225 NTUall yearM002
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearM002
pHminimum≥ 6 SUall yearM002
pHmaximum≤ 9 SUall yearM002
Solids, total suspendedmonthly average≤ 30 mg/Lall yearM002
Solids, total suspendedweekly average≤ 45 mg/Lall yearM002
Solids, total suspendedmonthly average≤ 1300 lb/dall yearM002
Solids, total suspendedweekly average≤ 1900 lb/dall yearM002
Solids, settleablemonthly average≤ 1 mL/Lall yearM002
Solids, settleableweekly average≤ 1.5 mL/Lall yearM002
Solids, settleableinstantaneous maximum≤ 3 mL/Lall yearM002
Oil and greasemonthly average≤ 25 mg/Lall yearM002
Oil and greaseweekly average≤ 40 mg/Lall yearM002
Oil and greaseinstantaneous maximum≤ 75 mg/Lall yearM002
Oil and greasemonthly average≤ 1000 lb/dall yearM002
Oil and greaseweekly average≤ 1700 lb/dall yearM002
Flow, in conduit or thru treatment plantdaily maximum≤ 5 MGDall yearM002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearM002
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall yearM002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1000 lb/dall yearM002
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1700 lb/dall yearM002
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all yearM002
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearM002
Turbiditymonthly average≤ 75 NTUall yearM005
Turbidityweekly average≤ 100 NTUall yearM005
Turbidityinstantaneous maximum≤ 225 NTUall yearM005
pHminimum≥ 6 SUall yearM005
pHmaximum≤ 9 SUall yearM005
Solids, total suspendedmonthly average≤ 60 mg/Lall yearM005
Solids, total suspendedmonthly average≤ 100 lb/dall yearM005
Solids, settleablemonthly average≤ 1 mL/Lall yearM005
Solids, settleableweekly average≤ 1.5 mL/Lall yearM005
Solids, settleableinstantaneous maximum≤ 3 mL/Lall yearM005
Oil and greasemonthly average≤ 25 mg/Lall yearM005
Oil and greaseweekly average≤ 40 mg/Lall yearM005
Oil and greaseinstantaneous maximum≤ 75 mg/Lall yearM005
Oil and greasemonthly average≤ 42 lb/dall yearM005
Oil and greaseweekly average≤ 67 lb/dall yearM005
Flow, in conduit or thru treatment plantdaily maximum≤ .2 MGDall yearM005
Solids, total dissolvedmonthly averagereport only (mg/L)all yearM005
Solids, total dissolveddaily maximumreport only (mg/L)all yearM005

Cited limits by parameter: California's rules and the federal ones.

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Your permit document is the final word. As JSON: /api/v1/permits/CA0107395 · MCP: https://passage-data.com/mcp