Cayucos Sanitary District

NPDES permit CA3000001 · Minor POTW · expired, expires 2025-11-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-11-30 and is expired: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
10of 24 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 33 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (230)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeINST MAX report only all year
001TurbidityMO AVG <= 75 NTU all year
001TurbidityWKLY AVG <= 100 NTU all year
001TurbidityDAILY MX <= 225 NTU all year
001RadioactivityDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 90 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 93 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 139 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 278 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedDAILY MX <= 90 mg/L all year
001Solids, total suspendedMO AVG <= 93 lb/d all year
001Solids, total suspendedWKLY AVG <= 139 lb/d all year
001Solids, total suspendedDAILY MX <= 278 lb/d all year
001Solids, settleableMO AVG <= 1 mL/L all year
001Solids, settleableWKLY AVG <= 1.5 mL/L all year
001Solids, settleableDAILY MX <= 3 mL/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Cyanide, total [as CN]DAILY MX report only all year
001Arsenic, total recoverableDAILY MX report only all year
001Selenium, total recoverableDAILY MX report only all year
001Thallium, total recoverableDAILY MX report only all year
001Beryllium, total recoverable [as Be]DAILY MX report only all year
001Chromium, hexavalent [as Cr]DAILY MX report only all year
001Chromium, trivalent [as Cr]DAILY MX report only all year
001Nickel, total recoverableDAILY MX report only all year
001Silver total recoverableDAILY MX report only all year
001Zinc, total recoverableDAILY MX report only all year
001Cadmium, total recoverableDAILY MX report only all year
001Lead, total recoverableDAILY MX report only all year
001Chromium, total recoverableDAILY MX report only all year
001Copper, total recoverableDAILY MX report only all year
001Antimony, total recoverableDAILY MX report only all year
001Oil and greaseMO AVG <= 25 mg/L all year
001Oil and greaseWKLY AVG <= 40 mg/L all year
001Oil and greaseDAILY MX <= 75 mg/L all year
001Oil and greaseMO AVG <= 77 lb/d all year
001Oil and greaseWKLY AVG <= 123 lb/d all year
001Oil and greaseDAILY MX <= 231 lb/d all year
0012-Methyl-4,6-dinitrophenolDAILY MX report only all year
001TributyltinDAILY MX report only all year
001Polynuclear Aromatic Hydrocarbons [PAHs]DAILY MX report only all year
001DichlorobromomethaneDAILY MX report only all year
001Carbon tetrachlorideDAILY MX report only all year
0011,2-DichloroethaneDAILY MX report only all year
001DibromochloromethaneDAILY MX report only all year
001ChloroformDAILY MX report only all year
001TolueneDAILY MX report only all year
001BenzeneDAILY MX report only all year
001AcroleinDAILY MX report only all year
001AcrylonitrileDAILY MX report only all year
001Bis[2-chloroethyl] etherDAILY MX report only all year
001Bis[2-chloroethoxy]methaneDAILY MX report only all year
001Bis[2-chloroisopropyl] etherDAILY MX report only all year
001ChlorobenzeneDAILY MX report only all year
001Diethyl phthalateDAILY MX report only all year
001Dimethyl phthalateDAILY MX report only all year
0011,2-DiphenylhydrazineDAILY MX report only all year
001EthylbenzeneDAILY MX report only all year
001FluorantheneDAILY MX report only all year
001HexachlorocyclopentadieneDAILY MX report only all year
001HexachlorobutadieneDAILY MX report only all year
001HexachloroethaneDAILY MX report only all year
001IsophoroneDAILY MX report only all year
001Methylene chlorideDAILY MX report only all year
001N-Nitrosodi-N-propylamineDAILY MX report only all year
001N-NitrosodiphenylamineDAILY MX report only all year
001N-Nitrosodimethylamine [NDMA]DAILY MX report only all year
001NitrobenzeneDAILY MX report only all year
001TetrachloroethyleneDAILY MX report only all year
0011,1-DichloroethyleneDAILY MX report only all year
0011,1,1-TrichloroethaneDAILY MX report only all year
0011,1,2-TrichloroethaneDAILY MX report only all year
0011,1,2,2-TetrachloroethaneDAILY MX report only all year
0011,4-DichlorobenzeneDAILY MX report only all year
0012,4-DinitrotolueneDAILY MX report only all year
0012,4-DinitrophenolDAILY MX report only all year
0012,4,6-TrichlorophenolDAILY MX report only all year
0013,3'-DichlorobenzidineDAILY MX report only all year
001Di[2-ethylhexyl] phthalate [DEHP]DAILY MX report only all year
001Di-n-butyl phthalateDAILY MX report only all year
001BenzidineDAILY MX report only all year
001Vinyl chlorideDAILY MX report only all year
001TrichloroethyleneDAILY MX report only all year
001AldrinDAILY MX report only all year
001Chlordane [tech mix. and metabolites]DAILY MX report only all year
001DDT/DDD/DDE, sum of p,p' & o,p' isomersDAILY MX report only all year
001DieldrinDAILY MX report only all year
001Endosulfan, totalDAILY MX report only all year
001EndrinDAILY MX report only all year
001ToxapheneDAILY MX report only all year
001HeptachlorDAILY MX report only all year
001Heptachlor epoxideDAILY MX report only all year
001HexachlorobenzeneDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualDAILY MX report only all year
001Flow, totalTOTAL report only all year
001Polychlorinated biphenyls [PCBs], sum of AroclorsDAILY MX report only all year
001EnterococciMO AVG report only all year
001EnterococciDAILY MX report only all year
001Mercury, total recoverableDAILY MX report only all year
001Phenols, chlorinatedDAILY MX report only all year
001Coliform, fecal generalMO AVG report only all year
001Coliform, fecal generalDAILY MX report only all year
001Coliform, total generalMO AVG report only all year
001Coliform, total generalDAILY MX report only all year
0011,3-DichloropropeneDAILY MX report only all year
001Hexachlorocyclohexane, totalDAILY MX report only all year
001Phenolic compounds, unchlorinatedDAILY MX report only all year
001HalomethanesDAILY MX report only all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001DichlorobenzeneDAILY MX report only all year
001TCDD equivalentsDAILY MX report only all year
001TU Static 48Hr Chronic Macrocystis pyriferaAVERAGE report only all year
001TU Static 48Hr Chronic Macrocystis pyriferaDAILY MX report only all year
001TU Static 48Hr Chronic Crassostrea gigasAVERAGE report only all year
001TU Static 48Hr Chronic Crassostrea gigasDAILY MX report only all year
001TU Static 48Hr Chronic Haliotis rufescensAVERAGE report only all year
001TU Static 48Hr Chronic Haliotis rufescensDAILY MX report only all year
001Static 48Hr Chronic Mytilis SpeciesAVERAGE report only all year
001Static 48Hr Chronic Mytilis SpeciesDAILY MX report only all year
001TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)AVERAGE report only all year
001TU Static Renewal 7-Day Chronic Americamysis bahia (formerly Mysidopsis bahia)DAILY MX report only all year
001TU Static Renewal 7-Day Chronic Holmesimysis costataAVERAGE report only all year
001TU Static Renewal 7-Day Chronic Holmesimysis costataDAILY MX report only all year
001TU Static Renewal 7-Day Chronic Menidia beryllinaAVERAGE report only all year
001TU Static Renewal 7-Day Chronic Menidia beryllinaDAILY MX report only all year
001Toxic Units Static Renewal 7-Day Chronic Atherinops affinis AVERAGE report only all year
001Toxic Units Static Renewal 7-Day Chronic Atherinops affinis DAILY MX report only all year
001TU Static 20Min Chronic Strongyl. purpuratusAVERAGE report only all year
001TU Static 20Min Chronic Strongyl. purpuratusDAILY MX report only all year
001Static 20Min Chronic Dendraster excentricusAVERAGE report only all year
001Static 20Min Chronic Dendraster excentricusDAILY MX report only all year
INFRadioactivityDAILY MX report only all year
INFBOD, 5-day, 20 deg. CMO AVG report only all year
INFBOD, 5-day, 20 deg. CDAILY MX report only all year
INFSolids, total suspendedMO AVG report only all year
INFSolids, total suspendedDAILY MX report only all year
INFNitrogen, ammonia total [as N]DAILY MX report only all year
INFCyanide, total [as CN]DAILY MX report only all year
INFArsenic, total recoverableDAILY MX report only all year
INFSelenium, total recoverableDAILY MX report only all year
INFThallium, total recoverableDAILY MX report only all year
INFBeryllium, total recoverable [as Be]DAILY MX report only all year
INFChromium, hexavalent [as Cr]DAILY MX report only all year
INFChromium, trivalent [as Cr]DAILY MX report only all year
INFNickel, total recoverableDAILY MX report only all year
INFSilver total recoverableDAILY MX report only all year
INFZinc, total recoverableDAILY MX report only all year
INFCadmium, total recoverableDAILY MX report only all year
INFLead, total recoverableDAILY MX report only all year
INFChromium, total recoverableDAILY MX report only all year
INFCopper, total recoverableDAILY MX report only all year
INFAntimony, total recoverableDAILY MX report only all year
INF2-Methyl-4,6-dinitrophenolDAILY MX report only all year
INFTributyltinDAILY MX report only all year
INFPolynuclear Aromatic Hydrocarbons [PAHs]DAILY MX report only all year
INFDichlorobromomethaneDAILY MX report only all year
INFCarbon tetrachlorideDAILY MX report only all year
INF1,2-DichloroethaneDAILY MX report only all year
INFDibromochloromethaneDAILY MX report only all year
INFChloroformDAILY MX report only all year
INFTolueneDAILY MX report only all year
INFBenzeneDAILY MX report only all year
INFAcroleinDAILY MX report only all year
INFAcrylonitrileDAILY MX report only all year
INFBis[2-chloroethyl] etherDAILY MX report only all year
INFBis[2-chloroethoxy]methaneDAILY MX report only all year
INFBis[2-chloroisopropyl] etherDAILY MX report only all year
INFChlorobenzeneDAILY MX report only all year
INFDiethyl phthalateDAILY MX report only all year
INFDimethyl phthalateDAILY MX report only all year
INF1,2-DiphenylhydrazineDAILY MX report only all year
INFEthylbenzeneDAILY MX report only all year
INFFluorantheneDAILY MX report only all year
INFHexachlorocyclopentadieneDAILY MX report only all year
INFHexachlorobutadieneDAILY MX report only all year
INFHexachloroethaneDAILY MX report only all year
INFIsophoroneDAILY MX report only all year
INFMethylene chlorideDAILY MX report only all year
INFN-Nitrosodi-N-propylamineDAILY MX report only all year
INFN-NitrosodiphenylamineDAILY MX report only all year
INFN-Nitrosodimethylamine [NDMA]DAILY MX report only all year
INFNitrobenzeneDAILY MX report only all year
INFTetrachloroethyleneDAILY MX report only all year
INF1,1-DichloroethyleneDAILY MX report only all year
INF1,1,1-TrichloroethaneDAILY MX report only all year
INF1,1,2-TrichloroethaneDAILY MX report only all year
INF1,1,2,2-TetrachloroethaneDAILY MX report only all year
INF1,4-DichlorobenzeneDAILY MX report only all year
INF2,4-DinitrotolueneDAILY MX report only all year
INF2,4-DinitrophenolDAILY MX report only all year
INF2,4,6-TrichlorophenolDAILY MX report only all year
INF3,3'-DichlorobenzidineDAILY MX report only all year
INFDi[2-ethylhexyl] phthalate [DEHP]DAILY MX report only all year
INFDi-n-butyl phthalateDAILY MX report only all year
INFBenzidineDAILY MX report only all year
INFVinyl chlorideDAILY MX report only all year
INFTrichloroethyleneDAILY MX report only all year
INFAldrinDAILY MX report only all year
INFChlordane [tech mix. and metabolites]DAILY MX report only all year
INFDDT/DDD/DDE, sum of p,p' & o,p' isomersDAILY MX report only all year
INFDieldrinDAILY MX report only all year
INFEndosulfan, totalDAILY MX report only all year
INFEndrinDAILY MX report only all year
INFToxapheneDAILY MX report only all year
INFHeptachlorDAILY MX report only all year
INFHeptachlor epoxideDAILY MX report only all year
INFHexachlorobenzeneDAILY MX report only all year
INFFlow, in conduit or thru treatment plantMO AVG report only all year
INFFlow, in conduit or thru treatment plantDAILY MX report only all year
INFChlorine, total residualDAILY MX report only all year
INFFlow, totalTOTAL report only all year
INFPolychlorinated biphenyls [PCBs], sum of AroclorsDAILY MX report only all year
INFMercury, total recoverableDAILY MX report only all year
INFPhenols, chlorinatedDAILY MX report only all year
INF1,3-DichloropropeneDAILY MX report only all year
INFHexachlorocyclohexane, totalDAILY MX report only all year
INFPhenolic compounds, unchlorinatedDAILY MX report only all year
INFHalomethanesDAILY MX report only all year
INFDichlorobenzeneDAILY MX report only all year
INFTCDD equivalentsDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states