JOLIET, CITY OF — NPDES permit IL0022519: limits, due date and EPA's record

NPDES permit IL0022519 · Major POTW · effective, expires 2027-05-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (2).

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (231)

Outfall	Parameter	Statistic	Limit	Months
004	Overflows	MO TOTAL	report only	all year
007	Overflows	MO TOTAL	report only	all year
009	Overflows	MO TOTAL	report only	all year
011	Overflows	MO TOTAL	report only	all year
A02	Oxygen, dissolved [DO]	DAILY MN	report only	all year
A02	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
A02	BOD, 5-day, 20 deg. C	WKLY AVG	report only	all year
A02	pH	MINIMUM	>= 6 SU	all year
A02	pH	MAXIMUM	<= 9 SU	all year
A02	Solids, total suspended	MO AVG	report only	all year
A02	Solids, total suspended	WKLY AVG	report only	all year
A02	Nitrogen, total [as N]	DAILY MX	report only	all year
A02	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
A02	Phosphorus, total [as P]	MO AVG	report only	all year
A02	Phosphorus, total [as P]	DAILY MX	report only	all year
A02	Chlorine, total residual	MO AVG	<= .75 mg/L	all year
A02	Coliform, fecal general	DAILY MX	<= 400 #/100mL	all year
A02	Flow, total	MO TOTAL	report only	all year
B02	Temperature, water deg. fahrenheit	MO MAX	report only	all year
B02	Temperature, water deg. fahrenheit	MO MAX	report only	all year
B02	Temperature, water deg. fahrenheit	MO MAX	report only	all year
B02	Temperature, water deg. fahrenheit	MO MAX	report only	all year
B02	Specific conductance	DAILY MX	report only	all year
B02	Specific conductance	DAILY MX	report only	all year
B02	Specific conductance	DAILY MX	report only	all year
B02	Specific conductance	DAILY MX	report only	all year
B02	Oxygen, dissolved [DO]	MO AV MN	>= 5.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec
B02	Oxygen, dissolved [DO]	MO AV MN	>= 5.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec
B02	Oxygen, dissolved [DO]	MN WK AV	>= 6 mg/L	Mar, Apr, May, Jun, Jul
B02	Oxygen, dissolved [DO]	MN WK AV	>= 6 mg/L	Mar, Apr, May, Jun, Jul
B02	Oxygen, dissolved [DO]	MN WK AV	>= 4 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec
B02	Oxygen, dissolved [DO]	MN WK AV	>= 4 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec
B02	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	Mar, Apr, May, Jun, Jul
B02	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	Mar, Apr, May, Jun, Jul
B02	Oxygen, dissolved [DO]	DAILY MN	>= 3.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec
B02	Oxygen, dissolved [DO]	DAILY MN	>= 3.5 mg/L	Jan, Feb, Aug, Sep, Oct, Nov, Dec
B02	pH	MINIMUM	>= 6 SU	all year
B02	pH	MINIMUM	>= 6 SU	all year
B02	pH	MAXIMUM	<= 9 SU	all year
B02	pH	MAXIMUM	<= 9 SU	all year
B02	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
B02	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
B02	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
B02	Alkalinity, total [as CaCO3]	DAILY MX	report only	all year
B02	Solids, total suspended	MO AVG	<= 12 mg/L	all year
B02	Solids, total suspended	MO AVG	<= 12 mg/L	all year
B02	Solids, total suspended	DAILY MX	<= 24 mg/L	all year
B02	Solids, total suspended	DAILY MX	<= 24 mg/L	all year
B02	Solids, total suspended	MO AVG	<= 4554 lb/d	all year
B02	Solids, total suspended	MO AVG	<= 4554 lb/d	all year
B02	Solids, total suspended	DAILY MX	<= 9107 lb/d	all year
B02	Solids, total suspended	DAILY MX	<= 9107 lb/d	all year
B02	Oil & Grease	DAILY MX	report only	all year
B02	Oil & Grease	DAILY MX	report only	all year
B02	Nitrogen, total [as N]	DAILY MX	report only	all year
B02	Nitrogen, total [as N]	DAILY MX	report only	all year
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 1.2 mg/L	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 1.2 mg/L	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 1 mg/L	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 1 mg/L	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 2.4 mg/L	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 2.4 mg/L	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 1.5 mg/L	Mar
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 1.5 mg/L	Mar
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.9 mg/L	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.9 mg/L	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.9 mg/L	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.9 mg/L	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 4.6 mg/L	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 4.6 mg/L	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.8 mg/L	Mar
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.8 mg/L	Mar
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 455 lb/d	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 455 lb/d	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 379 lb/d	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 379 lb/d	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 911 lb/d	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 911 lb/d	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 569 lb/d	Mar
B02	Nitrogen, ammonia total [as N]	MO AVG	<= 569 lb/d	Mar
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1100 lb/d	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1100 lb/d	Apr, May, Sep, Oct
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1100 lb/d	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1100 lb/d	Jun, Jul, Aug
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1746 lb/d	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1746 lb/d	Jan, Feb, Nov, Dec
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1442 lb/d	Mar
B02	Nitrogen, ammonia total [as N]	DAILY MX	<= 1442 lb/d	Mar
B02	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
B02	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
B02	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
B02	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
B02	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
B02	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
B02	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
B02	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
B02	Phosphorus, total [as P]	MO AVG	<= 1 mg/L	all year
B02	Phosphorus, total [as P]	MO AVG	<= 1 mg/L	all year
B02	Phosphorus, total [as P]	DAILY MX	report only	all year
B02	Phosphorus, total [as P]	DAILY MX	report only	all year
B02	Phosphorus, total [as P]	MO AVG	<= 379 lb/d	all year
B02	Phosphorus, total [as P]	MO AVG	<= 379 lb/d	all year
B02	Phosphorus, total [as P]	DAILY MX	report only	all year
B02	Phosphorus, total [as P]	DAILY MX	report only	all year
B02	Phosphorus, dissolved	DAILY MX	report only	all year
B02	Phosphorus, dissolved	DAILY MX	report only	all year
B02	Phosphorus, dissolved	DAILY MX	report only	all year
B02	Phosphorus, dissolved	DAILY MX	report only	all year
B02	Cyanide, total [as CN]	DAILY MX	report only	all year
B02	Cyanide, total [as CN]	DAILY MX	report only	all year
B02	Cyanide, free [amenable to chlorination]	DAILY MX	report only	all year
B02	Cyanide, free [amenable to chlorination]	DAILY MX	report only	all year
B02	Chloride [as Cl]	DAILY MX	report only	all year
B02	Chloride [as Cl]	DAILY MX	report only	all year
B02	Chloride [as Cl]	DAILY MX	report only	all year
B02	Chloride [as Cl]	DAILY MX	report only	all year
B02	Fluoride, total [as F]	DAILY MX	report only	all year
B02	Fluoride, total [as F]	DAILY MX	report only	all year
B02	Arsenic, total [as As]	DAILY MX	report only	all year
B02	Arsenic, total [as As]	DAILY MX	report only	all year
B02	Barium, total [as Ba]	DAILY MX	report only	all year
B02	Barium, total [as Ba]	DAILY MX	report only	all year
B02	Beryllium, total [as Be]	DAILY MX	report only	all year
B02	Beryllium, total [as Be]	DAILY MX	report only	all year
B02	Cadmium, total [as Cd]	DAILY MX	report only	all year
B02	Cadmium, total [as Cd]	DAILY MX	report only	all year
B02	Chromium, hexavalent [as Cr]	DAILY MX	report only	all year
B02	Chromium, hexavalent [as Cr]	DAILY MX	report only	all year
B02	Chromium, total [as Cr]	DAILY MX	report only	all year
B02	Chromium, total [as Cr]	DAILY MX	report only	all year
B02	Copper, total [as Cu]	DAILY MX	<= .0615 mg/L	all year
B02	Copper, total [as Cu]	DAILY MX	<= .0615 mg/L	all year
B02	Copper, total [as Cu]	DAILY MX	report only	all year
B02	Copper, total [as Cu]	DAILY MX	report only	all year
B02	Copper, total [as Cu]	DAILY MX	<= 23 lb/d	all year
B02	Copper, total [as Cu]	DAILY MX	<= 23 lb/d	all year
B02	Iron, total [as Fe]	DAILY MX	report only	all year
B02	Iron, total [as Fe]	DAILY MX	report only	all year
B02	Iron, dissolved [as Fe]	DAILY MX	report only	all year
B02	Iron, dissolved [as Fe]	DAILY MX	report only	all year
B02	Lead, total [as Pb]	DAILY MX	report only	all year
B02	Lead, total [as Pb]	DAILY MX	report only	all year
B02	Manganese, total [as Mn]	DAILY MX	report only	all year
B02	Manganese, total [as Mn]	DAILY MX	report only	all year
B02	Thallium, total [as Tl]	DAILY MX	report only	all year
B02	Thallium, total [as Tl]	DAILY MX	report only	all year
B02	Nickel, total [as Ni]	DAILY MX	report only	all year
B02	Nickel, total [as Ni]	DAILY MX	report only	all year
B02	Silver, total [as Ag]	DAILY MX	report only	all year
B02	Silver, total [as Ag]	DAILY MX	report only	all year
B02	Zinc, total [as Zn]	DAILY MX	<= .2291 mg/L	all year
B02	Zinc, total [as Zn]	DAILY MX	<= .2291 mg/L	all year
B02	Zinc, total [as Zn]	DAILY MX	report only	all year
B02	Zinc, total [as Zn]	DAILY MX	report only	all year
B02	Zinc, total [as Zn]	DAILY MX	<= 87 lb/d	all year
B02	Zinc, total [as Zn]	DAILY MX	<= 87 lb/d	all year
B02	Antimony, total [as Sb]	DAILY MX	report only	all year
B02	Antimony, total [as Sb]	DAILY MX	report only	all year
B02	Selenium, total [as Se]	DAILY MX	report only	all year
B02	Selenium, total [as Se]	DAILY MX	report only	all year
B02	Phenolics, total recoverable	DAILY MX	report only	all year
B02	Phenolics, total recoverable	DAILY MX	report only	all year
B02	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
B02	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
B02	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
B02	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
B02	Chlorine, total residual	DAILY MX	<= .038 mg/L	all year
B02	Chlorine, total residual	DAILY MX	<= .038 mg/L	all year
B02	Mercury, total [as Hg]	DAILY MX	report only	all year
B02	Mercury, total [as Hg]	DAILY MX	report only	all year
B02	Coliform, fecal general	DAILY MX	report only	May, Jun, Jul, Aug, Sep, Oct
B02	Coliform, fecal general	DAILY MX	report only	May, Jun, Jul, Aug, Sep, Oct
B02	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 10 mg/L	all year
B02	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 10 mg/L	all year
B02	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 20 mg/L	all year
B02	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 20 mg/L	all year
B02	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 3795 lb/d	all year
B02	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 3795 lb/d	all year
B02	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 7589 lb/d	all year
B02	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 7589 lb/d	all year
INF	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
INF	Solids, total suspended	MO AVG	report only	all year
INF	Phosphorus, total [as P]	DAILY MX	report only	all year
INF	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
INF	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
INFL	Oil & Grease	DAILY MX	report only	all year
INFL	Oil & Grease	DAILY MX	report only	all year
INFL	Cyanide, total [as CN]	DAILY MX	report only	all year
INFL	Cyanide, total [as CN]	DAILY MX	report only	all year
INFL	Cyanide, free [amenable to chlorination]	DAILY MX	report only	all year
INFL	Cyanide, free [amenable to chlorination]	DAILY MX	report only	all year
INFL	Fluoride, total [as F]	DAILY MX	report only	all year
INFL	Fluoride, total [as F]	DAILY MX	report only	all year
INFL	Arsenic, total [as As]	DAILY MX	report only	all year
INFL	Arsenic, total [as As]	DAILY MX	report only	all year
INFL	Barium, total [as Ba]	DAILY MX	report only	all year
INFL	Barium, total [as Ba]	DAILY MX	report only	all year
INFL	Beryllium, total [as Be]	DAILY MX	report only	all year
INFL	Beryllium, total [as Be]	DAILY MX	report only	all year
INFL	Cadmium, total [as Cd]	DAILY MX	report only	all year
INFL	Cadmium, total [as Cd]	DAILY MX	report only	all year
INFL	Chromium, hexavalent [as Cr]	DAILY MX	report only	all year
INFL	Chromium, hexavalent [as Cr]	DAILY MX	report only	all year
INFL	Chromium, total [as Cr]	DAILY MX	report only	all year
INFL	Chromium, total [as Cr]	DAILY MX	report only	all year
INFL	Copper, total [as Cu]	DAILY MX	report only	all year
INFL	Copper, total [as Cu]	DAILY MX	report only	all year
INFL	Iron, total [as Fe]	DAILY MX	report only	all year
INFL	Iron, total [as Fe]	DAILY MX	report only	all year
INFL	Iron, dissolved [as Fe]	DAILY MX	report only	all year
INFL	Iron, dissolved [as Fe]	DAILY MX	report only	all year
INFL	Lead, total [as Pb]	DAILY MX	report only	all year
INFL	Lead, total [as Pb]	DAILY MX	report only	all year
INFL	Manganese, total [as Mn]	DAILY MX	report only	all year
INFL	Manganese, total [as Mn]	DAILY MX	report only	all year
INFL	Thallium, total [as Tl]	DAILY MX	report only	all year
INFL	Thallium, total [as Tl]	DAILY MX	report only	all year
INFL	Nickel, total [as Ni]	DAILY MX	report only	all year
INFL	Nickel, total [as Ni]	DAILY MX	report only	all year
INFL	Silver, total [as Ag]	DAILY MX	report only	all year
INFL	Silver, total [as Ag]	DAILY MX	report only	all year
INFL	Zinc, total [as Zn]	DAILY MX	report only	all year
INFL	Zinc, total [as Zn]	DAILY MX	report only	all year
INFL	Antimony, total [as Sb]	DAILY MX	report only	all year
INFL	Antimony, total [as Sb]	DAILY MX	report only	all year
INFL	Selenium, total [as Se]	DAILY MX	report only	all year
INFL	Selenium, total [as Se]	DAILY MX	report only	all year
INFL	Phenolics, total recoverable	DAILY MX	report only	all year
INFL	Phenolics, total recoverable	DAILY MX	report only	all year
INFL	Mercury, total [as Hg]	DAILY MX	report only	all year
INFL	Mercury, total [as Hg]	DAILY MX	report only	all year