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Silicon Valley Clean Water

Sewage treatment plant, major discharger, Redwood City, California. NPDES permit CA0038369, in force until Apr 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form A monthly (25 values), outfall 001 form A1 monthly (16 values), outfall 001 form Q quarterly (4 values), outfall 001 form Q1 quarterly (4 values), outfall INF form A monthly (7 values), outfall INF form Q quarterly (32 values), and 5 more forms
Renewal application due
Nov 2, 2027 · 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, 3 required values missing, 4 of 51 reports late

Limits in force (251)

ParameterStatisticLimitMonthsOutfall
Turbiditymonthly average≤ 10 NTUMay–Sep001
Turbiditymonthly average≤ 20 NTUJan, Feb, Mar, Apr, Oct, Nov, Dec001
Turbiditydaily maximum≤ 20 NTUMay–Sep001
Turbiditydaily maximum≤ 40 NTUJan, Feb, Mar, Apr, Oct, Nov, Dec001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 16 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Solids, total suspendedmonthly average≤ 8 mg/LMay–Sep001
Solids, total suspendedweekly average≤ 24 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
Solids, total suspendedweekly average≤ 12 mg/LMay–Sep001
Nitrogen, ammonia total [as N]monthly average≤ 170 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 170 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 250 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 250 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (kg/d)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (kg/d)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (kg/d)all year001
Nitrogen, inorganic totalmonthly averagereport only (mg/L)all year001
Nitrogen, inorganic totaldaily maximumreport only (mg/L)all year001
Nitrogen, inorganic totalmonthly averagereport only (kg/d)all year001
Nitrogen, inorganic totaldaily maximumreport only (kg/d)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (kg/d)all year001
Phosphorus, total [as P]daily maximumreport only (kg/d)all year001
Cyanide, total [as CN]monthly average≤ 21 ug/Lall year001
Cyanide, total [as CN]daily maximum≤ 32 ug/Lall year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Arsenic, total recoverabledaily maximumreport only (ug/L)all year001
Selenium, total recoverabledaily maximumreport only (ug/L)all year001
Thallium, total recoverabledaily maximumreport only (ug/L)all year001
Beryllium, total recoverable [as Be]daily maximumreport only (ug/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (ug/L)all year001
Chromium, trivalent [as Cr]daily maximumreport only (ug/L)all year001
Nickel, total recoverabledaily maximumreport only (ug/L)all year001
Silver total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverabledaily maximumreport only (ug/L)all year001
Cadmium, total recoverabledaily maximumreport only (ug/L)all year001
Lead, total recoverabledaily maximumreport only (ug/L)all year001
Chromium, total recoverabledaily maximumreport only (ug/L)all year001
Copper, total recoverablemonthly average≤ 52 ug/Lall year001
Copper, total recoverabledaily maximum≤ 84 ug/Lall year001
Copper, total recoverabledaily maximumreport only (ug/L)all year001
Antimony, total recoverabledaily maximumreport only (ug/L)all year001
2-Methyl-4,6-dinitrophenoldaily maximumreport only (ug/L)all year001
1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
1,2,3,7,8-Pentachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
1,2,3,7,8-Pentachlorodibenzofurandaily maximumreport only (ug/L)all year001
2,3,4,7,8-Pentachlorodibenzofurandaily maximumreport only (ug/L)all year001
1,2,3,4,7,8-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year001
1,2,3,6,7,8-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year001
1,2,3,7,8,9-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year001
2,3,4,6,7,8-Hexachlorodibenzofurandaily maximumreport only (ug/L)all year001
1,2,3,4,6,7,8-Heptachlorodibenzofurandaily maximumreport only (ug/L)all year001
1,2,3,4,7,8,9-Heptachlorodibenzofurandaily maximumreport only (ug/L)all year001
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
Dichlorobromomethanedaily maximumreport only (ug/L)all year001
Carbon tetrachloridedaily maximumreport only (ug/L)all year001
1,2-Dichloroethanedaily maximumreport only (ug/L)all year001
Bromoformdaily maximumreport only (ug/L)all year001
Dibromochloromethanedaily maximumreport only (ug/L)all year001
Chloroformdaily maximumreport only (ug/L)all year001
Toluenedaily maximumreport only (ug/L)all year001
Benzenedaily maximumreport only (ug/L)all year001
.delta.-BHCdaily maximumreport only (ug/L)all year001
Acenaphthylenedaily maximumreport only (ug/L)all year001
Acenaphthenedaily maximumreport only (ug/L)all year001
Acroleindaily maximumreport only (ug/L)all year001
Acrylonitriledaily maximumreport only (ug/L)all year001
Anthracenedaily maximumreport only (ug/L)all year001
Benzo[b]fluoranthenedaily maximumreport only (ug/L)all year001
Benzo[k]fluoranthenedaily maximumreport only (ug/L)all year001
Benzo[a]pyrenedaily maximumreport only (ug/L)all year001
Bis[2-chloroethyl] etherdaily maximumreport only (ug/L)all year001
Bis[2-chloroethoxy]methanedaily maximumreport only (ug/L)all year001
Bis[2-chloroisopropyl] etherdaily maximumreport only (ug/L)all year001
Butyl benzyl phthalatedaily maximumreport only (ug/L)all year001
Chlorobenzenedaily maximumreport only (ug/L)all year001
Chrysenedaily maximumreport only (ug/L)all year001
Diethyl phthalatedaily maximumreport only (ug/L)all year001
Dimethyl phthalatedaily maximumreport only (ug/L)all year001
1,2-Diphenylhydrazinedaily maximumreport only (ug/L)all year001
Endosulfan sulfatedaily maximumreport only (ug/L)all year001
.beta.-Endosulfandaily maximumreport only (ug/L)all year001
.alpha.-Endosulfandaily maximumreport only (ug/L)all year001
Endrin aldehydedaily maximumreport only (ug/L)all year001
Ethylbenzenedaily maximumreport only (ug/L)all year001
Fluoranthenedaily maximumreport only (ug/L)all year001
Fluorenedaily maximumreport only (ug/L)all year001
Hexachlorocyclopentadienedaily maximumreport only (ug/L)all year001
Hexachlorobutadienedaily maximumreport only (ug/L)all year001
Hexachloroethanedaily maximumreport only (ug/L)all year001
Indeno[1,2,3-cd]pyrenedaily maximumreport only (ug/L)all year001
Isophoronedaily maximumreport only (ug/L)all year001
Methyl bromide [Bromomethane]daily maximumreport only (ug/L)all year001
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)all year001
Methylene chloridedaily maximumreport only (ug/L)all year001
N-Nitrosodi-N-propylaminedaily maximumreport only (ug/L)all year001
N-Nitrosodiphenylaminedaily maximumreport only (ug/L)all year001
N-Nitrosodimethylamine [NDMA]daily maximumreport only (ug/L)all year001
Nitrobenzenedaily maximumreport only (ug/L)all year001
Phenanthrenedaily maximumreport only (ug/L)all year001
Pyrenedaily maximumreport only (ug/L)all year001
Tetrachloroethylenedaily maximumreport only (ug/L)all year001
1,1-Dichloroethanedaily maximumreport only (ug/L)all year001
1,1-Dichloroethylenedaily maximumreport only (ug/L)all year001
1,1,1-Trichloroethanedaily maximumreport only (ug/L)all year001
1,1,2-Trichloroethanedaily maximumreport only (ug/L)all year001
1,1,2,2-Tetrachloroethanedaily maximumreport only (ug/L)all year001
Benzo[ghi]perylenedaily maximumreport only (ug/L)all year001
Benzo[a]anthracenedaily maximumreport only (ug/L)all year001
1,2-Dichlorobenzenedaily maximumreport only (ug/L)all year001
1,2-Dichloropropanedaily maximumreport only (ug/L)all year001
trans-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year001
1,2,4-Trichlorobenzenedaily maximumreport only (ug/L)all year001
Dibenz[a,h]anthracenedaily maximumreport only (ug/L)all year001
1,3-Dichlorobenzenedaily maximumreport only (ug/L)all year001
1,4-Dichlorobenzenedaily maximumreport only (ug/L)all year001
2-Chloroethyl vinyl ether, [mixed]daily maximumreport only (ug/L)all year001
2-Chloronaphthalenedaily maximumreport only (ug/L)all year001
2-Chlorophenoldaily maximumreport only (ug/L)all year001
2-Nitrophenoldaily maximumreport only (ug/L)all year001
Di-n-octyl phthalatedaily maximumreport only (ug/L)all year001
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year001
2,4-Dimethylphenoldaily maximumreport only (ug/L)all year001
2,4-Dinitrotoluenedaily maximumreport only (ug/L)all year001
2,4-Dinitrophenoldaily maximumreport only (ug/L)all year001
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year001
2,6-Dinitrotoluenedaily maximumreport only (ug/L)all year001
3,3'-Dichlorobenzidinedaily maximumreport only (ug/L)all year001
4-Bromophenyl phenyl etherdaily maximumreport only (ug/L)all year001
4-Chlorophenyl phenyl etherdaily maximumreport only (ug/L)all year001
4-Nitrophenoldaily maximumreport only (ug/L)all year001
PCB-1016daily maximumreport only (ug/L)all year001
2,3,7,8-Tetrachlorodibenzo-p-dioxindaily maximumreport only (ug/L)all year001
Phenoldaily maximumreport only (ug/L)all year001
Naphthalenedaily maximumreport only (ug/L)all year001
2,3,7,8-Tetrachlorodibenzofurandaily maximumreport only (ug/L)all year001
Pentachlorophenoldaily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year001
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year001
Benzidinedaily maximumreport only (ug/L)all year001
Vinyl chloridedaily maximumreport only (ug/L)all year001
Trichloroethylenedaily maximumreport only (ug/L)all year001
4,4'-DDTdaily maximumreport only (ug/L)all year001
4,4'-DDDdaily maximumreport only (ug/L)all year001
4,4'-DDEdaily maximumreport only (ug/L)all year001
Aldrindaily maximumreport only (ug/L)all year001
.alpha.-BHCdaily maximumreport only (ug/L)all year001
.beta.-BHCdaily maximumreport only (ug/L)all year001
.gamma.-BHCdaily maximumreport only (ug/L)all year001
Chlordane [tech mix. and metabolites]daily maximumreport only (ug/L)all year001
Dieldrindaily maximumreport only (ug/L)all year001
Endrindaily maximumreport only (ug/L)all year001
Toxaphenedaily maximumreport only (ug/L)all year001
Heptachlordaily maximumreport only (ug/L)all year001
Heptachlor epoxidedaily maximumreport only (ug/L)all year001
PCB-1221daily maximumreport only (ug/L)all year001
PCB-1232daily maximumreport only (ug/L)all year001
PCB-1242daily maximumreport only (ug/L)all year001
PCB-1248daily maximumreport only (ug/L)all year001
PCB-1254daily maximumreport only (ug/L)all year001
PCB-1260daily maximumreport only (ug/L)all year001
Hexachlorobenzenedaily maximumreport only (ug/L)all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Chlorine, total residual1-hour average≤ .53 mg/Lall year001
1,2,3,4,6,7,8,9-Octachlorodibenzofurandaily maximumreport only (ug/L)all year001
Flow, totalmonthly totalreport only (Mgal)all year001
Polychlorinated biphenyls [PCBs], sum of congenersmonthly averagereport only (ug/L)all year001
Polychlorinated biphenyls [PCBs], sum of congenersmonthly averagereport only (ug/L)all year001
Polychlorinated biphenyls [PCBs], sum of congenersdaily maximumreport only (ug/L)all year001
Polychlorinated biphenyls [PCBs], sum of congenersdaily maximumreport only (ug/L)all year001
Polychlorinated biphenyls [PCBs], sum of Aroclorsmonthly average≤ .012 ug/Lall year001
Polychlorinated biphenyls [PCBs], sum of Aroclorsdaily maximum≤ .017 ug/Lall year001
Enterococcimonthly geometric mean≤ 290 CFU/100mLall year001
Enterococci90% of samples≤ 1100 CFU/100mLall year001
4-Chloro-3-methylphenoldaily maximumreport only (ug/L)all year001
Mercury, total recoverablemonthly average≤ .066 ug/Lall year001
Mercury, total recoverablemonthly average≤ .066 ug/Lall year001
Mercury, total recoverablemonthly average≤ .066 ug/Lall year001
Mercury, total recoverableweekly average≤ .072 ug/Lall year001
Mercury, total recoverableweekly average≤ .072 ug/Lall year001
Mercury, total recoverableweekly average≤ .072 ug/Lall year001
Mercury, total recoverabledaily maximumreport only (ug/L)all year001
1,3-Dichloropropenedaily maximumreport only (ug/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 16 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 8 mg/LMay–Sep001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 24 mg/LJan, Feb, Mar, Apr, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 12 mg/LMay–Sep001
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
TCDD equivalentsmonthly average≤ .000014 ng/Lall year001
TCDD equivalentsdaily maximum≤ .000028 ng/Lall year001
Chloroethanedaily maximumreport only (ug/L)all year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum single sample≥ 70 % survivalall year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum single sample≥ 70 % survivalall year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum median≥ 90 % survivalall year001
% Survival Flow Through 96Hr Acute Oncorhynchus mykissminimum median≥ 90 % survivalall year001
TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)averagereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)averagereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)daily maximumreport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)daily maximumreport only (tox chronic)all year001
Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A bahiadaily maximum≤ 1 pass=0;fail=1all year001
Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A bahiadaily maximum≤ 50 % effectall year001
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearINF
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearINF
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearINF
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all yearINF
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)all yearINF
Nitrogen, ammonia total [as N]monthly averagereport only (kg/d)all yearINF
Nitrogen, ammonia total [as N]daily maximumreport only (kg/d)all yearINF
Nitrogen, ammonia total [as N]daily maximumreport only (kg/d)all yearINF
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearINF
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearINF
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all yearINF
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all yearINF
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (kg/d)all yearINF
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (kg/d)all yearINF
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (kg/d)all yearINF
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (kg/d)all yearINF
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearINF
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearINF
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearINF
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearINF
Nitrite + Nitrate total [as N]monthly averagereport only (kg/d)all yearINF
Nitrite + Nitrate total [as N]monthly averagereport only (kg/d)all yearINF
Nitrite + Nitrate total [as N]daily maximumreport only (kg/d)all yearINF
Nitrite + Nitrate total [as N]daily maximumreport only (kg/d)all yearINF
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearINF
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearINF
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearINF
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearINF
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearINF
Phosphorus, total [as P]monthly averagereport only (kg/d)all yearINF
Phosphorus, total [as P]daily maximumreport only (kg/d)all yearINF
Phosphorus, total [as P]daily maximumreport only (kg/d)all yearINF
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all yearINF
Flow, totalmonthly totalreport only (Mgal)all yearINF
Cyanide, total recoverabledaily maximumreport only (ug/L)all yearINF
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearINF
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearINF
Mercury, total recoverableannual average≤ .32 kg/yrall yearSUM
Mercury, total recoverableannual average≤ .32 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/CA0038369 · MCP: https://passage-data.com/mcp