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Central Contra Costa Sanitary District

Sewage treatment plant, major discharger, Martinez, California. NPDES permit CA0037648, in force until Jul 31, 2027. Last 12 months: no values over a limit, 29 of 56 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 31 days after each period: outfall 001 form A monthly (20 values), outfall 001 form A1 monthly (16 values), outfall 001 form A2 monthly (2 values), outfall INF form A monthly (7 values), outfall INF form Q quarterly (32 values), outfall 001 form Q quarterly, and 5 more forms
Renewal application due
Feb 1, 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, 0 required values missing, 0 of 62 reports late

Limits in force (248)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 54 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 54 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 74 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 74 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 5500 kg/dall 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≤ 36 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
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≤ 88 ug/Lall year001
Copper, total recoverabledaily maximum≤ 120 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
Acrylonitrilemonthly average≤ 6.3 ug/Lall year001
Acrylonitrilemonthly average≤ 6.3 ug/Lall year001
Acrylonitriledaily maximum≤ 13 ug/Lall year001
Acrylonitriledaily maximum≤ 13 ug/Lall 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
Polychlorinated biphenyls [PCBs]monthly average≤ .012 ug/Lall year001
Polychlorinated biphenyls [PCBs]monthly average≤ .012 ug/Lall year001
Polychlorinated biphenyls [PCBs]daily maximum≤ .017 ug/Lall year001
Polychlorinated biphenyls [PCBs]daily maximum≤ .017 ug/Lall year001
Hexachlorobenzenedaily maximumreport only (ug/L)all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
1,2,3,4,6,7,8,9-Octachlorodibenzofurandaily maximumreport only (ug/L)all year001
Flow, totalmonthly totalreport only (Mgal)all year001
pH Range Excursion, Maximum Durationmonthly total≤ 446 minall year001
pH Range Excursion, Maximum Durationmaximum single sample≤ 60 minall year001
Enterococcigeometric 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 recoverabledaily maximumreport only (ug/L)all year001
Mercury, total recoverableweekly average≤ .072 ug/Lall year001
1,3-Dichloropropenedaily maximumreport only (ug/L)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/Lall year001
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 Pimephales promelasminimum≥ 70 % survivalall year001
% Survival Flow Through 96Hr Acute Pimephales promelasminimum≥ 70 % survivalall year001
% Survival Flow Through 96Hr Acute Pimephales promelasminimum median≥ 90 % survivalall year001
% Survival Flow Through 96Hr Acute Pimephales promelasminimum 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
TU Static Renewal 7-Day Chronic Pimphales promelasaveragereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Pimphales promelasaveragereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Pimphales promelasdaily maximumreport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Pimphales promelasdaily maximumreport only (tox chronic)all year001
Static 96Hr Chronic Selen. Capricornutumaveragereport only (tox chronic)all year001
Static 96Hr Chronic Selen. Capricornutumaveragereport only (tox chronic)all year001
Static 96Hr Chronic Selen. Capricornutumdaily maximumreport only (tox chronic)all year001
Static 96Hr Chronic Selen. Capricornutumdaily maximumreport only (tox chronic)all 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
Cyanide, total [as CN]daily maximumreport only (ug/L)all yearINF
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all yearINF
Flow, totalmonthly totalreport only (Mgal)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≤ 1.3 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/CA0037648 · MCP: https://passage-data.com/mcp