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California Department of Corrections and Rehabilitation

Sewage treatment plant, major discharger, San Luis Obispo, California. NPDES permit CA0047856 expired Jul 31, 2025; its limits still apply. Last 12 months: over a limit 3 times (last May 2026), 5 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 32 days after each period: outfall 001 form A monthly (55 values), outfall 001 form Q quarterly (18 values), outfall INF form A monthly (6 values), outfall 001 form Y yearly, outfall INF form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
38 values over a limit, 65 required values missing, 10 of 30 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
October 2025Copper, total recoverable, daily maximum25.6 ug/L≤ 17 ug/L51%
October 2025Copper, total recoverable, monthly average13.12 ug/L≤ 7.5 ug/L75%
May 2026Copper, total recoverable, daily maximum20.9 ug/L≤ 17 ug/L23%

Limits in force (265)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)all year001
Turbiditymonthly average≤ 10 NTUall year001
Turbiditydaily maximum≤ 20 NTUall year001
Oxygen, dissolved [DO]instantaneous minimum> 2 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 50 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 100 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 300 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 500 lb/dall year001
pHminimum≥ 7 SUall year001
pHmaximum≤ 8.3 SUall year001
Bicarbonate ion- [as HCO3]daily maximumreport only (mg/L)all year001
Carbonate ion- [as CO3]daily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 10 mg/Lall year001
Solids, total suspendedweekly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendedmonthly average≤ 100 lb/dall year001
Solids, total suspendedweekly average≤ 300 lb/dall year001
Solids, total suspendeddaily maximum≤ 500 lb/dall year001
Solids, settleablemonthly average≤ .1 mL/Lall year001
Solids, settleabledaily maximum≤ .3 mL/Lall year001
Nitrogen, total [as N]daily maximum≤ 10 mg/Lall year001
Nitrogen, total [as N]daily maximum≤ 100 lb/dall year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphate, ortho, dissolved [as P]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Calcium, total [as Ca]daily maximumreport only (mg/L)all year001
Sodium, total recoverabledaily maximumreport only (mg/L)all year001
Magnesium, total [as Mg]daily maximumreport only (mg/L)all year001
Potassium, total [as K]daily maximumreport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Sulfate, total [as SO4]daily maximum≤ 125 mg/Lall year001
Sulfate, total [as SO4]daily maximum≤ 125 mg/Lall year001
Sulfate, total [as SO4]daily maximum≤ 1251 lb/dall year001
Sulfate, total [as SO4]daily maximum≤ 1251 lb/dall year001
Asbestosdaily maximumreport only (MF/L)all year001
Fluoride, total [as F]daily maximumreport only (ug/L)all year001
Arsenic, total recoverabledaily maximumreport only (ug/L)all year001
Cobalt, total recoverabledaily maximumreport only (mg/L)all year001
Iron, total recoverabledaily maximumreport only (mg/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
Boron, total recoverabledaily maximumreport only (mg/L)all year001
Boron, total recoverabledaily maximumreport only (mg/L)all year001
Barium, total recoverabledaily 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
Aluminum, 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
Copper, total recoverablemonthly average≤ 7.5 ug/Lall year001
Copper, total recoverabledaily maximum≤ 17 ug/Lall year001
Vanadium, total recoverabledaily maximumreport only (mg/L)all year001
Molybdenum, total recoverabledaily maximumreport only (mg/L)all year001
Lithium, total [as Li]daily maximumreport only (mg/L)all year001
Antimony, total recoverabledaily maximumreport only (ug/L)all year001
Oil and greasemonthly average≤ 5 mg/Lall year001
Oil and greasedaily maximum≤ 10 mg/Lall year001
Oil and greasemonthly average≤ 50 lb/dall year001
Oil and greasedaily maximum≤ 100 lb/dall year001
2-Methyl-4,6-dinitrophenoldaily maximumreport only (ug/L)all year001
Diquatdaily maximumreport only (ug/L)all year001
Manganese, total recoverabledaily maximumreport only (mg/L)all year001
Methyl tert-butyl ether [MTBE]daily maximumreport only (ug/L)all year001
Dinosebdaily maximumreport only (ug/L)all year001
Dichlorobromomethanemonthly average≤ .56 ug/Lall year001
Dichlorobromomethanedaily maximum≤ .88 ug/Lall 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
Dibromochloromethanemonthly average≤ .4 ug/Lall year001
Dibromochloromethanedaily maximum≤ .8 ug/Lall year001
Chloroformdaily maximumreport only (ug/L)all year001
Toluenedaily maximumreport only (ug/L)all year001
Benzenedaily maximumreport only (ug/L)all year001
Monochlorobenzenesdaily 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
Trichlorofluoromethanedaily 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
Bolerodaily maximumreport only (ug/L)all year001
Surfactants [MBAS]daily maximumreport only (mg/L)all year001
Dalapondaily maximumreport only (ug/L)all year001
Bentazon, totaldaily maximumreport only (ug/L)all year001
Oxamyldaily maximumreport only (ug/L)all year001
Pentachlorophenoldaily maximumreport only (ug/L)all year001
Atrazinedaily maximumreport only (ug/L)all year001
Simazinedaily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 1.8 ug/Lall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 1.8 ug/Lall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 3.6 ug/Lall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 3.6 ug/Lall year001
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year001
Phthalate estersmonthly average≤ .002 ug/Lall year001
Phthalate estersmonthly average≤ .002 ug/Lall year001
Phthalate estersdaily maximum≤ .006 ug/Lall year001
Phthalate estersdaily maximum≤ .006 ug/Lall year001
Benzidinedaily maximumreport only (ug/L)all year001
Alachlordaily 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
Methoxychlordaily 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
Picloramdaily maximumreport only (ug/L)all year001
Molinatedaily maximumreport only (ug/L)all year001
Chlorine, total residualmonthly averagereport only (mg/L)all year001
Chlorine, total residualdaily maximumreport only (mg/L)all year001
2,4-D SALTS AND ESTERSdaily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] adipatedaily maximumreport only (ug/L)all year001
Endothalldaily maximumreport only (ug/L)all year001
Perchlorate [ClO4]daily maximumreport only (ug/L)all year001
4-Chloro-3-methylphenoldaily maximumreport only (ug/L)all year001
Solids, total dissolveddaily maximumreport only (mg/L)all year001
Phosphate, total, color method [as P]daily maximumreport only (mg/L)all year001
Mercury, total recoverabledaily maximumreport only (ug/L)all year001
Coliform, total general7-day median≤ 2.2 MPN/100mLall year001
Coliform, total general30-day maximum≤ 23 MPN/100mLall year001
Coliform, total generalinstantaneous maximum≤ 240 MPN/100mLall year001
cis-1,2-Dichloroethylenedaily maximumreport only (ug/L)all year001
1,3-Dichloropropenedaily maximumreport only (ug/L)all year001
1,2,3-Trichloropropanedaily maximumreport only (ug/L)all year001
Ethylene dibromidedaily maximumreport only (ug/L)all year001
1,1,2-Trichloro-1,2,2-trifluoroethanedaily maximumreport only (ug/L)all year001
2,4,5-TPdaily maximumreport only (ug/L)all year001
Glyphosate, totaldaily maximumreport only (ug/L)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Chlorine usagemonthly averagereport only (lb/d)all year001
Chlorine usagedaily maximumreport only (lb/d)all year001
Carbofurandaily maximumreport only (ug/L)all year001
Xylene [mix of m+o+p]daily maximumreport only (ug/L)all year001
Styrenedaily maximumreport only (ug/L)all year001
Dibromochloropropanedaily maximumreport only (ug/L)all year001
Chloroethanedaily maximumreport only (ug/L)all year001
% Survival Flow Through 96Hr Acute Pimephales promelasminimumreport only (% survival)all year001
% Survival Flow Through 96Hr Acute Pimephales promelasminimumreport only (% survival)all year001
% Survival Flow Through 96Hr Acute Pimephales promelasaveragereport only (% survival)all year001
% Survival Flow Through 96Hr Acute Pimephales promelasaveragereport only (% survival)all year001
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)averagereport only (tox chronic)all year001
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)daily maximumreport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaaveragereport only (tox chronic)all year001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiadaily 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 promelasdaily maximumreport only (tox chronic)all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearINF
Bicarbonate ion- [as HCO3]daily maximumreport only (mg/L)all yearINF
Carbonate ion- [as CO3]daily maximumreport only (mg/L)all yearINF
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF
Nitrogen, nitrate total [as N]daily maximumreport only (mg/L)all yearINF
Calcium, total [as Ca]daily maximumreport only (mg/L)all yearINF
Magnesium, total [as Mg]daily maximumreport only (mg/L)all yearINF
Sodium, total [as Na]daily maximumreport only (mg/L)all yearINF
Potassium, total [as K]daily maximumreport only (mg/L)all yearINF
Chloride [as Cl]daily maximumreport only (mg/L)all yearINF
Sulfate, total [as SO4]daily maximumreport only (mg/L)all yearINF
Fluoride, total [as F]daily maximumreport only (mg/L)all yearINF
Boron, total [as B]daily maximumreport only (mg/L)all yearINF
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all yearINF
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF
Solids, total dissolveddaily maximumreport only (mg/L)all yearINF

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/CA0047856 · MCP: https://passage-data.com/mcp