Fort Bragg Municipal Improvement District No. 1 — NPDES permit CA0023078: limits, due date and EPA's record

Sewage treatment plant, Fort Bragg, California. NPDES permit CA0023078 expired Jul 31, 2024; its limits still apply. Last 12 months: over a limit 2 times (last November 2025), 8 of 26 reports late. Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Parameter	Reported	Limit	Over by
November 2025	Coliform, total general, monthly median	89.5 MPN/100mL	≤ 70 MPN/100mL	28%
November 2025	Coliform, total general, single sample	430 MPN/100mL	≤ 230 MPN/100mL	87%

Limits in force (169)

Parameter	Statistic	Limit	Months	Outfall
Turbidity	monthly average	≤ 75 NTU	all year	001
Turbidity	monthly average	≤ 75 NTU	all year	001
Turbidity	weekly average	≤ 100 NTU	all year	001
Turbidity	weekly average	≤ 100 NTU	all year	001
Turbidity	instantaneous maximum	≤ 225 NTU	all year	001
Turbidity	instantaneous maximum	≤ 225 NTU	all year	001
Radioactivity	daily maximum	report only (pCi/L)	all year	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year	001
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	weekly average	≤ 45 mg/L	all year	001
Solids, total suspended	weekly average	≤ 45 mg/L	all year	001
Solids, settleable	monthly average	≤ 1 mL/L	all year	001
Solids, settleable	monthly average	≤ 1 mL/L	all year	001
Solids, settleable	weekly average	≤ 1.5 mL/L	all year	001
Solids, settleable	weekly average	≤ 1.5 mL/L	all year	001
Solids, settleable	instantaneous maximum	≤ 3 mL/L	all year	001
Solids, settleable	instantaneous maximum	≤ 3 mL/L	all year	001
Nitrogen, ammonia total [as N]	6-month median	≤ 30.6 mg/L	all year	001
Nitrogen, ammonia total [as N]	6-month median	≤ 30.6 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 122 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 122 mg/L	all year	001
Nitrogen, ammonia total [as N]	instantaneous maximum	≤ 306 mg/L	all year	001
Nitrogen, ammonia total [as N]	instantaneous maximum	≤ 306 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	report only (ug/L)	all year	001
Cyanide, total [as CN]	daily maximum	report only (ug/L)	all year	001
Arsenic, total recoverable	daily maximum	report only (ug/L)	all year	001
Selenium, total recoverable	daily maximum	report only (ug/L)	all year	001
Thallium, total recoverable	daily maximum	report only (ug/L)	all year	001
Beryllium, total recoverable [as Be]	daily maximum	report only (ug/L)	all year	001
Chromium, hexavalent [as Cr]	daily maximum	report only (ug/L)	all year	001
Chromium, trivalent [as Cr]	daily maximum	report only (ug/L)	all year	001
Nickel, total recoverable	daily maximum	report only (ug/L)	all year	001
Silver total recoverable	daily maximum	report only (ug/L)	all year	001
Zinc, total recoverable	daily maximum	report only (ug/L)	all year	001
Cadmium, total recoverable	daily maximum	report only (ug/L)	all year	001
Lead, total recoverable	daily maximum	report only (ug/L)	all year	001
Chromium, total recoverable	daily maximum	report only (ug/L)	all year	001
Copper, total recoverable	daily maximum	report only (ug/L)	all year	001
Antimony, total recoverable	daily maximum	report only (ug/L)	all year	001
Oil and grease	monthly average	≤ 25 mg/L	all year	001
Oil and grease	monthly average	≤ 25 mg/L	all year	001
Oil and grease	weekly average	≤ 40 mg/L	all year	001
Oil and grease	weekly average	≤ 40 mg/L	all year	001
Oil and grease	instantaneous maximum	≤ 75 mg/L	all year	001
Oil and grease	instantaneous maximum	≤ 75 mg/L	all year	001
2-Methyl-4,6-dinitrophenol	daily maximum	report only (ug/L)	all year	001
Tributyltin	daily maximum	report only (ug/L)	all year	001
Polynuclear Aromatic Hydrocarbons [PAHs]	daily maximum	report only (ug/L)	all year	001
Dichlorobromomethane	daily maximum	report only (ug/L)	all year	001
Carbon tetrachloride	daily maximum	report only (ug/L)	all year	001
1,2-Dichloroethane	daily maximum	report only (ug/L)	all year	001
Dibromochloromethane	daily maximum	report only (ug/L)	all year	001
Chloroform	daily maximum	report only (ug/L)	all year	001
Toluene	daily maximum	report only (ug/L)	all year	001
Benzene	daily maximum	report only (ug/L)	all year	001
Acrolein	daily maximum	report only (ug/L)	all year	001
Acrylonitrile	daily maximum	report only (ug/L)	all year	001
Bis[2-chloroethyl] ether	daily maximum	report only (ug/L)	all year	001
Bis[2-chloroethoxy]methane	daily maximum	report only (ug/L)	all year	001
Bis[2-chloroisopropyl] ether	daily maximum	report only (ug/L)	all year	001
Chlorobenzene	daily maximum	report only (ug/L)	all year	001
Diethyl phthalate	daily maximum	report only (ug/L)	all year	001
Dimethyl phthalate	daily maximum	report only (ug/L)	all year	001
1,2-Diphenylhydrazine	daily maximum	report only (ug/L)	all year	001
Ethylbenzene	daily maximum	report only (ug/L)	all year	001
Fluoranthene	daily maximum	report only (ug/L)	all year	001
Hexachlorocyclopentadiene	daily maximum	report only (ug/L)	all year	001
Hexachlorobutadiene	daily maximum	report only (ug/L)	all year	001
Hexachloroethane	daily maximum	report only (ug/L)	all year	001
Isophorone	daily maximum	report only (ug/L)	all year	001
Methylene chloride	daily maximum	report only (ug/L)	all year	001
N-Nitrosodi-N-propylamine	daily maximum	report only (ug/L)	all year	001
N-Nitrosodiphenylamine	daily maximum	report only (ug/L)	all year	001
N-Nitrosodimethylamine [NDMA]	daily maximum	report only (ug/L)	all year	001
Nitrobenzene	daily maximum	report only (ug/L)	all year	001
Tetrachloroethylene	daily maximum	report only (ug/L)	all year	001
1,1-Dichloroethylene	daily maximum	report only (ug/L)	all year	001
1,1,1-Trichloroethane	daily maximum	report only (ug/L)	all year	001
1,1,2-Trichloroethane	daily maximum	report only (ug/L)	all year	001
1,1,2,2-Tetrachloroethane	daily maximum	report only (ug/L)	all year	001
1,4-Dichlorobenzene	daily maximum	report only (ug/L)	all year	001
2,4-Dinitrotoluene	daily maximum	report only (ug/L)	all year	001
2,4-Dinitrophenol	daily maximum	report only (ug/L)	all year	001
2,4,6-Trichlorophenol	daily maximum	report only (ug/L)	all year	001
3,3'-Dichlorobenzidine	daily maximum	report only (ug/L)	all year	001
Di[2-ethylhexyl] phthalate [DEHP]	daily maximum	report only (ug/L)	all year	001
Di-n-butyl phthalate	daily maximum	report only (ug/L)	all year	001
Benzidine	daily maximum	report only (ug/L)	all year	001
Vinyl chloride	daily maximum	report only (ug/L)	all year	001
Trichloroethylene	daily maximum	report only (ug/L)	all year	001
Aldrin	daily maximum	report only (ug/L)	all year	001
Chlordane [tech mix. and metabolites]	daily maximum	report only (ug/L)	all year	001
DDT/DDD/DDE, sum of p,p' & o,p' isomers	daily maximum	report only (ug/L)	all year	001
Dieldrin	daily maximum	report only (ug/L)	all year	001
Endosulfan, total	daily maximum	report only (ug/L)	all year	001
Endrin	daily maximum	report only (ug/L)	all year	001
Toxaphene	daily maximum	report only (ug/L)	all year	001
Heptachlor	daily maximum	report only (ug/L)	all year	001
Heptachlor epoxide	daily maximum	report only (ug/L)	all year	001
Hexachlorobenzene	daily maximum	report only (ug/L)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	maximum daily average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	maximum daily average	report only (MGD)	all year	001
Chlorine, total residual	6-month median	≤ 102 ug/L	all year	001
Chlorine, total residual	6-month median	≤ 102 ug/L	all year	001
Chlorine, total residual	daily maximum	≤ 408 ug/L	all year	001
Chlorine, total residual	daily maximum	≤ 408 ug/L	all year	001
Chlorine, total residual	instantaneous maximum	≤ 3060 ug/L	all year	001
Chlorine, total residual	instantaneous maximum	≤ 3060 ug/L	all year	001
Chlorine, total residual	daily maximum	report only (ug/L)	all year	001
Polychlorinated biphenyls [PCBs], sum of Aroclors	daily maximum	report only (ug/L)	all year	001
Enterococci	geometric mean	≤ 30 CFU/100mL	Jun–Sep	001
Enterococci	geometric mean	≤ 30 CFU/100mL	Jun–Sep	001
Enterococci	single sample	≤ 110 CFU/100mL	Jun–Sep	001
Enterococci	single sample	≤ 110 CFU/100mL	Jun–Sep	001
Mercury, total recoverable	daily maximum	report only (ug/L)	all year	001
Phenols, chlorinated	daily maximum	report only (ug/L)	all year	001
Coliform, total general	monthly median	≤ 70 MPN/100mL	all year	001
Coliform, total general	monthly median	≤ 70 MPN/100mL	all year	001
Coliform, total general	single sample	≤ 230 MPN/100mL	all year	001
Coliform, total general	single sample	≤ 230 MPN/100mL	all year	001
1,3-Dichloropropene	daily maximum	report only (ug/L)	all year	001
Hexachlorocyclohexane, total	daily maximum	report only (ug/L)	all year	001
Phenolic compounds, unchlorinated	daily maximum	report only (ug/L)	all year	001
Halomethanes	daily maximum	report only (ug/L)	all year	001
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	001
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	001
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	001
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	001
Dichlorobenzene	daily maximum	report only (ug/L)	all year	001
TCDD equivalents	daily maximum	report only (ug/L)	all year	001
Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A affinis	value	report only (pass=0;fail=1)	all year	001
Chronic Mthd, Survival Endpt %Effect, Growth Endpt Median TSTcHo R/nR Pass/Fail, StatR7d A affinis	maximum	report only (% effect)	all year	001
Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr H rufescens	value	report only (pass=0;fail=1)	all year	001
Chronic Mthd Larval Development Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr H rufescens	maximum	report only (% effect)	all year	001
Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min S purpuratus	value	report only (pass=0;fail=1)	all year	001
Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min S purpuratus	maximum	report only (% effect)	all year	001
Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min D excentricus	value	report only (pass=0;fail=1)	all year	001
Chronic Mthd Fertilization Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static40min D excentricus	maximum	report only (% effect)	all year	001
Chronic Mthd Germination Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera	value	report only (pass=0;fail=1)	all year	001
Chronic Mthd Germination Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera	maximum	report only (% effect)	all year	001
Chronic Mthd Germ Tube Length Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera	value	report only (pass=0;fail=1)	all year	001
Chronic Mthd Germ Tube Length Endpt, %Effect, Median TSTcHo R/nR Pass/Fail, Static48hr M pyrifera	maximum	report only (% effect)	all year	001
BOD, 5-day, 20 deg. C	monthly average	report only (mg/L)	all year	INF1
BOD, 5-day, 20 deg. C	monthly average	report only (mg/L)	all year	INF1
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year	INF1
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year	INF1
Solids, total suspended	monthly average	report only (mg/L)	all year	INF1
Solids, total suspended	monthly average	report only (mg/L)	all year	INF1
Solids, total suspended	daily maximum	report only (mg/L)	all year	INF1
Solids, total suspended	daily maximum	report only (mg/L)	all year	INF1
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	INF1
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	INF1
Flow, in conduit or thru treatment plant	maximum daily average	report only (MGD)	all year	INF1
Flow, in conduit or thru treatment plant	maximum daily average	report only (MGD)	all year	INF1
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	INF2
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	INF2
Flow, in conduit or thru treatment plant	average	report only (MGD)	all year	INF2
Flow, in conduit or thru treatment plant	maximum daily average	report only (MGD)	all year	INF2
Flow, in conduit or thru treatment plant	maximum daily average	report only (MGD)	all year	INF2

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/CA0023078 · MCP: https://passage-data.com/mcp