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City of San Leandro Water Pollution Control Plant - Treatment Wetland

Sewage treatment plant, San Leandro, California. NPDES permit CA0038881, in force until May 31, 2027. Last 12 months: no values over a limit, 37 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall 002B form A monthly (4 values), outfall 002B form A1 monthly (2 values), outfall 002W form A monthly (10 values), outfall INFB form A monthly (2 values), outfall INFW form A monthly (11 values), outfall INFW form Q quarterly (7 values), and 3 more forms
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 5 of 67 reports late

Limits in force (182)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.5 SUall year002B
pHmaximum≤ 8.5 SUall year002B
Polychlorinated biphenyls [PCBs], sum of Aroclorsmonthly average≤ .012 ug/Lall year002B
Polychlorinated biphenyls [PCBs], sum of Aroclorsdaily maximum≤ .017 ug/Lall year002B
Enterococcimonthly geometric mean≤ 30 CFU/100mLall year002B
Enterococci90th percentile≤ 110 CFU/100mLall year002B
Mercury, total recoverablemonthly average≤ .066 ug/Lall year002B
Mercury, total recoverabledaily maximum≤ .072 ug/Lall year002B
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/Lall year002W
Nitrogen, ammonia total [as N]daily maximum≤ 12 mg/Lall year002W
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year002W
Nitrogen, inorganic totaldaily maximumreport only (mg/L)all year002W
Cyanide, total [as CN]monthly average≤ 4.3 ug/Lall year002W
Cyanide, total [as CN]daily maximum≤ 8.7 ug/Lall year002W
Cyanide, total [as CN]daily maximumreport only (ug/L)all year002W
Arsenic, total recoverabledaily maximumreport only (ug/L)all year002W
Selenium, total recoverabledaily maximumreport only (ug/L)all year002W
Thallium, total recoverabledaily maximumreport only (ug/L)all year002W
Beryllium, total recoverable [as Be]daily maximumreport only (ug/L)all year002W
Chromium, hexavalent [as Cr]daily maximumreport only (ug/L)all year002W
Chromium, trivalent [as Cr]daily maximumreport only (ug/L)all year002W
Nickel, total recoverabledaily maximumreport only (ug/L)all year002W
Silver total recoverabledaily maximumreport only (ug/L)all year002W
Zinc, total recoverabledaily maximumreport only (ug/L)all year002W
Cadmium, total recoverabledaily maximumreport only (ug/L)all year002W
Lead, total recoverabledaily maximumreport only (ug/L)all year002W
Chromium, total recoverabledaily maximumreport only (ug/L)all year002W
Copper, total recoverablemonthly average≤ 11 ug/Lall year002W
Copper, total recoverabledaily maximum≤ 19 ug/Lall year002W
Copper, total recoverabledaily maximumreport only (ug/L)all year002W
Antimony, total recoverabledaily maximumreport only (ug/L)all year002W
2-Methyl-4,6-dinitrophenoldaily maximumreport only (ug/L)all year002W
1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
1,2,3,7,8-Pentachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
1,2,3,7,8-Pentachlorodibenzofurandaily maximumreport only (ug/L)all year002W
2,3,4,7,8-Pentachlorodibenzofurandaily maximumreport only (ug/L)all year002W
1,2,3,4,7,8-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year002W
1,2,3,6,7,8-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year002W
1,2,3,7,8,9-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year002W
2,3,4,6,7,8-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year002W
1,2,3,4,6,7,8-Heptachlorodibenzofurandaily maximumreport only (ug/L)all year002W
1,2,3,4,7,8,9-Heptachlorodibenzofurandaily maximumreport only (ug/L)all year002W
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
Carbon tetrachloridedaily maximumreport only (ug/L)all year002W
1,2-Dichloroethanedaily maximumreport only (ug/L)all year002W
Bromoformdaily maximumreport only (ug/L)all year002W
Dibromochloromethanedaily maximumreport only (ug/L)all year002W
Chloroformdaily maximumreport only (ug/L)all year002W
Toluenedaily maximumreport only (ug/L)all year002W
Benzenedaily maximumreport only (ug/L)all year002W
.delta.-BHCdaily maximumreport only (ug/L)all year002W
Acenaphthylenedaily maximumreport only (ug/L)all year002W
Acenaphthenedaily maximumreport only (ug/L)all year002W
Acroleindaily maximumreport only (ug/L)all year002W
Acrylonitriledaily maximumreport only (ug/L)all year002W
Anthracenedaily maximumreport only (ug/L)all year002W
Benzo[b]fluoranthenedaily maximumreport only (ug/L)all year002W
Benzo[k]fluoranthenedaily maximumreport only (ug/L)all year002W
Benzo[a]pyrenedaily maximumreport only (ug/L)all year002W
Bis[2-chloroethyl] etherdaily maximumreport only (ug/L)all year002W
Bis[2-chloroethoxy]methanedaily maximumreport only (ug/L)all year002W
Bis[2-chloroisopropyl] etherdaily maximumreport only (ug/L)all year002W
Butyl benzyl phthalatedaily maximumreport only (ug/L)all year002W
Chlorobenzenedaily maximumreport only (ug/L)all year002W
Chrysenedaily maximumreport only (ug/L)all year002W
Diethyl phthalatedaily maximumreport only (ug/L)all year002W
Dimethyl phthalatedaily maximumreport only (ug/L)all year002W
1,2-Diphenylhydrazinedaily maximumreport only (ug/L)all year002W
Endosulfan sulfatedaily maximumreport only (ug/L)all year002W
.beta.-Endosulfandaily maximumreport only (ug/L)all year002W
.alpha.-Endosulfandaily maximumreport only (ug/L)all year002W
Endrin aldehydedaily maximumreport only (ug/L)all year002W
Ethylbenzenedaily maximumreport only (ug/L)all year002W
Fluoranthenedaily maximumreport only (ug/L)all year002W
Fluorenedaily maximumreport only (ug/L)all year002W
Hexachlorocyclopentadienedaily maximumreport only (ug/L)all year002W
Hexachlorobutadienedaily maximumreport only (ug/L)all year002W
Hexachloroethanedaily maximumreport only (ug/L)all year002W
Indeno[1,2,3-cd]pyrenedaily maximumreport only (ug/L)all year002W
Isophoronedaily maximumreport only (ug/L)all year002W
Methyl bromide [Bromomethane]daily maximumreport only (ug/L)all year002W
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)all year002W
Methylene chloridedaily maximumreport only (ug/L)all year002W
N-Nitrosodi-N-propylaminedaily maximumreport only (ug/L)all year002W
N-Nitrosodiphenylaminedaily maximumreport only (ug/L)all year002W
N-Nitrosodimethylamine [NDMA]daily maximumreport only (ug/L)all year002W
Nitrobenzenedaily maximumreport only (ug/L)all year002W
Phenanthrenedaily maximumreport only (ug/L)all year002W
Pyrenedaily maximumreport only (ug/L)all year002W
Tetrachloroethylenedaily maximumreport only (ug/L)all year002W
1,1-Dichloroethanedaily maximumreport only (ug/L)all year002W
1,1-Dichloroethylenedaily maximumreport only (ug/L)all year002W
1,1,1-Trichloroethanedaily maximumreport only (ug/L)all year002W
1,1,2-Trichloroethanedaily maximumreport only (ug/L)all year002W
1,1,2,2-Tetrachloroethanedaily maximumreport only (ug/L)all year002W
Benzo[ghi]perylenedaily maximumreport only (ug/L)all year002W
Benzo[a]anthracenedaily maximumreport only (ug/L)all year002W
1,2-Dichlorobenzenedaily maximumreport only (ug/L)all year002W
1,2-Dichloropropanedaily maximumreport only (ug/L)all year002W
trans-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year002W
1,2,4-Trichlorobenzenedaily maximumreport only (ug/L)all year002W
Dibenz[a,h]anthracenedaily maximumreport only (ug/L)all year002W
1,3-Dichlorobenzenedaily maximumreport only (ug/L)all year002W
1,4-Dichlorobenzenedaily maximumreport only (ug/L)all year002W
2-Chloroethyl vinyl ether, [mixed]daily maximumreport only (ug/L)all year002W
2-Chloronaphthalenedaily maximumreport only (ug/L)all year002W
2-Chlorophenoldaily maximumreport only (ug/L)all year002W
2-Nitrophenoldaily maximumreport only (ug/L)all year002W
Di-n-octyl phthalatedaily maximumreport only (ug/L)all year002W
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year002W
2,4-Dimethylphenoldaily maximumreport only (ug/L)all year002W
2,4-Dinitrotoluenedaily maximumreport only (ug/L)all year002W
2,4-Dinitrophenoldaily maximumreport only (ug/L)all year002W
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year002W
2,6-Dinitrotoluenedaily maximumreport only (ug/L)all year002W
3,3'-Dichlorobenzidinedaily maximumreport only (ug/L)all year002W
4-Bromophenyl phenyl etherdaily maximumreport only (ug/L)all year002W
4-Chlorophenyl phenyl etherdaily maximumreport only (ug/L)all year002W
4-Nitrophenoldaily maximumreport only (ug/L)all year002W
PCB-1016daily maximumreport only (ug/L)all year002W
2,3,7,8-Tetrachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year002W
Phenoldaily maximumreport only (ug/L)all year002W
Naphthalenedaily maximumreport only (ug/L)all year002W
2,3,7,8-Tetrachlorodibenzofurandaily maximumreport only (ug/L)all year002W
Pentachlorophenoldaily maximumreport only (ug/L)all year002W
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year002W
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year002W
Benzidinedaily maximumreport only (ug/L)all year002W
Vinyl chloridedaily maximumreport only (ug/L)all year002W
Trichloroethylenedaily maximumreport only (ug/L)all year002W
4,4'-DDTdaily maximumreport only (ug/L)all year002W
4,4'-DDDdaily maximumreport only (ug/L)all year002W
4,4'-DDEdaily maximumreport only (ug/L)all year002W
Aldrindaily maximumreport only (ug/L)all year002W
.alpha.-BHCdaily maximumreport only (ug/L)all year002W
.beta.-BHCdaily maximumreport only (ug/L)all year002W
.gamma.-BHCdaily maximumreport only (ug/L)all year002W
Chlordane [tech mix. and metabolites]daily maximumreport only (ug/L)all year002W
Dieldrindaily maximumreport only (ug/L)all year002W
Endrindaily maximumreport only (ug/L)all year002W
Toxaphenedaily maximumreport only (ug/L)all year002W
Heptachlordaily maximumreport only (ug/L)all year002W
Heptachlor epoxidedaily maximumreport only (ug/L)all year002W
PCB-1221daily maximumreport only (ug/L)all year002W
PCB-1232daily maximumreport only (ug/L)all year002W
PCB-1242daily maximumreport only (ug/L)all year002W
PCB-1248daily maximumreport only (ug/L)all year002W
PCB-1254daily maximumreport only (ug/L)all year002W
PCB-1260daily maximumreport only (ug/L)all year002W
Hexachlorobenzenedaily maximumreport only (ug/L)all year002W
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002W
1,2,3,4,6,7,8,9-Octachlorodibenzofurandaily maximumreport only (ug/L)all year002W
Flow, totaltotalreport only (Mgal)all year002W
4-Chloro-3-methylphenoldaily maximumreport only (ug/L)all year002W
Mercury, total recoverabledaily maximumreport only (ug/L)all year002W
1,3-Dichloropropenedaily maximumreport only (ug/L)all year002W
Chloroethanedaily maximumreport only (ug/L)all year002W
Solids, total suspendeddaily maximumreport only (mg/L)all yearINFB
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearINFB
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all yearINFW
pHminimumreport only (SU)all yearINFW
pHmaximumreport only (SU)all yearINFW
Solids, total suspendedmonthly average≤ 20 mg/Lall yearINFW
Solids, total suspendedweekly average≤ 30 mg/Lall yearINFW
Nitrogen, ammonia total [as N]monthly average≤ 7.5 mg/Lall yearINFW
Nitrogen, ammonia total [as N]daily maximum≤ 12 mg/Lall yearINFW
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all yearINFW
Chlorine, total residual1-hour average≤ .013 mg/Lall yearINFW
Flow, totaltotalreport only (Mgal)all yearINFW
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearINFW
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall yearINFW
BOD, carbonaceous [5 day, 20 C]monthly average minimum≥ 85 %all yearINFW
Solids, suspended percent removalmonthly average minimum≥ 85 %all yearINFW
% Survival Flow Through 96Hr Acute Pimephales promelasminimum 90th percentile≥ 70 % survivalall yearINFW
% Survival Flow Through 96Hr Acute Pimephales promelasminimum median≥ 90 % survivalall yearINFW
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum 90th percentile≥ 70 % survivalall yearINFW
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum median≥ 90 % survivalall yearINFW
Mercury, total recoverableannual average≤ 2.2 kg/yrall yearSUM
Mercury, total recoverableannual average≤ 2.2 kg/yrall yearSUM

How strict are these limits?

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/CA0038881 · MCP: https://passage-data.com/mcp