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Illinois Power Generating Company

Industrial or other facility, Coffeen, Illinois. NPDES permit ILD000010 expired Sep 30, 2021; its limits still apply. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (7 values), outfall 001 form S monthly (22 values), outfall 002 form 0 monthly (8 values), outfall 002 form A monthly (22 values), outfall 002 form Q monthly (2 values), outfall 008 form A monthly (22 values), and 21 more forms
Last report on file
None in EPA's file for the last 12 months; that may be EPA's gap, not the facility's

Limits in force (414)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly average≤ 105 deg FJun–Sep001
Temperature, water deg. fahrenheitmonthly average≤ 89 deg FJan, Feb, Mar, Apr, Nov, Dec001
Temperature, water deg. fahrenheitmonthly average≤ 96 deg FMay, Oct001
Temperature, water deg. fahrenheitdaily maximum≤ 112 deg FJun–Sep001
Temperature, water deg. fahrenheitdaily maximum≤ 94 deg FJan, Feb, Mar, Apr, Nov, Dec001
Temperature, water deg. fahrenheitdaily maximum≤ 102 deg FMay, Oct001
pHmonthly minimum≥ 6.5 SUall year001
pHmonthly maximum≤ 9 SUall year001
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year001
Cyanide, total [as CN]daily maximumreport only (ug/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year001
Fluoride, total [as F]daily maximumreport only (mg/L)all year001
Arsenic, total [as As]daily maximumreport only (mg/L)all year001
Barium, total [as Ba]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year001
Chromium, total [as Cr]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Iron, total [as Fe]daily maximumreport only (mg/L)all year001
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year001
Lead, total [as Pb]daily maximumreport only (mg/L)all year001
Manganese, total [as Mn]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Silver, total [as Ag]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Oil and greasedaily maximumreport only (mg/L)all year001
Phenolics, total recoverabledaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualinstantaneous maximum≤ .2 mg/Lall year001
Mercury, total [as Hg]daily maximumreport only (ng/L)all year001
pHmonthly minimum≥ 6.5 SUall year002
pHmonthly maximum≤ 9 SUall year002
Solids, total suspended30-day average≤ 15 mg/Lall year002
Solids, total suspendeddaily maximum≤ 30 mg/Lall year002
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year002
Cyanide, total [as CN]daily maximumreport only (ug/L)all year002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year002
Fluoride, total [as F]daily maximumreport only (mg/L)all year002
Arsenic, total [as As]daily maximumreport only (mg/L)all year002
Barium, total [as Ba]daily maximumreport only (mg/L)all year002
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year002
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year002
Chromium, total [as Cr]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Iron, total [as Fe]quarterly average≤ 2 mg/Lall year002
Iron, total [as Fe]quarterly maximum≤ 4 mg/Lall year002
Iron, total [as Fe]daily maximumreport only (mg/L)all year002
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year002
Lead, total [as Pb]daily maximumreport only (mg/L)all year002
Manganese, total [as Mn]daily maximumreport only (mg/L)all year002
Nickel, total [as Ni]daily maximumreport only (mg/L)all year002
Silver, total [as Ag]daily maximumreport only (mg/L)all year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Oil and grease30-day average≤ 15 mg/Lall year002
Oil and greasedaily maximum≤ 20 mg/Lall year002
Oil and greasedaily maximumreport only (mg/L)all year002
Phenolics, total recoverabledaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Mercury, total [as Hg]daily maximumreport only (ng/L)all year002
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year008
Cyanide, total [as CN]daily maximumreport only (ug/L)all year008
Chloride [as Cl]daily maximumreport only (mg/L)all year008
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year008
Fluoride, total [as F]daily maximumreport only (mg/L)all year008
Arsenic, total [as As]daily maximumreport only (mg/L)all year008
Barium, total [as Ba]daily maximumreport only (mg/L)all year008
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year008
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year008
Chromium, total [as Cr]daily maximumreport only (mg/L)all year008
Copper, total [as Cu]daily maximumreport only (mg/L)all year008
Iron, total [as Fe]daily maximumreport only (mg/L)all year008
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year008
Lead, total [as Pb]daily maximumreport only (mg/L)all year008
Manganese, total [as Mn]daily maximumreport only (mg/L)all year008
Nickel, total [as Ni]daily maximumreport only (mg/L)all year008
Silver, total [as Ag]daily maximumreport only (mg/L)all year008
Zinc, total [as Zn]daily maximumreport only (mg/L)all year008
Selenium, total [as Se]daily maximumreport only (mg/L)all year008
Oil and greasedaily maximumreport only (mg/L)all year008
Phenolics, total recoverabledaily maximumreport only (mg/L)all year008
Mercury, total [as Hg]daily maximumreport only (ng/L)all year008
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year009
Cyanide, total [as CN]daily maximumreport only (ug/L)all year009
Chloride [as Cl]daily maximumreport only (mg/L)all year009
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year009
Fluoride, total [as F]daily maximumreport only (mg/L)all year009
Arsenic, total [as As]daily maximumreport only (mg/L)all year009
Barium, total [as Ba]daily maximumreport only (mg/L)all year009
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year009
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year009
Chromium, total [as Cr]daily maximumreport only (mg/L)all year009
Copper, total [as Cu]daily maximumreport only (mg/L)all year009
Iron, total [as Fe]daily maximumreport only (mg/L)all year009
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year009
Lead, total [as Pb]daily maximumreport only (mg/L)all year009
Manganese, total [as Mn]daily maximumreport only (mg/L)all year009
Nickel, total [as Ni]daily maximumreport only (mg/L)all year009
Silver, total [as Ag]daily maximumreport only (mg/L)all year009
Zinc, total [as Zn]daily maximumreport only (mg/L)all year009
Selenium, total [as Se]daily maximumreport only (mg/L)all year009
Oil and greasedaily maximumreport only (mg/L)all year009
Phenolics, total recoverabledaily maximumreport only (mg/L)all year009
Mercury, total [as Hg]daily maximumreport only (ng/L)all year009
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year010
Cyanide, total [as CN]daily maximumreport only (ug/L)all year010
Chloride [as Cl]daily maximumreport only (mg/L)all year010
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year010
Fluoride, total [as F]daily maximumreport only (mg/L)all year010
Arsenic, total [as As]daily maximumreport only (mg/L)all year010
Barium, total [as Ba]daily maximumreport only (mg/L)all year010
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year010
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year010
Chromium, total [as Cr]daily maximumreport only (mg/L)all year010
Copper, total [as Cu]daily maximumreport only (mg/L)all year010
Iron, total [as Fe]daily maximumreport only (mg/L)all year010
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year010
Lead, total [as Pb]daily maximumreport only (mg/L)all year010
Manganese, total [as Mn]daily maximumreport only (mg/L)all year010
Nickel, total [as Ni]daily maximumreport only (mg/L)all year010
Silver, total [as Ag]daily maximumreport only (mg/L)all year010
Zinc, total [as Zn]daily maximumreport only (mg/L)all year010
Selenium, total [as Se]daily maximumreport only (mg/L)all year010
Oil and greasedaily maximumreport only (mg/L)all year010
Phenolics, total recoverabledaily maximumreport only (mg/L)all year010
Mercury, total [as Hg]daily maximumreport only (ng/L)all year010
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year011
Cyanide, total [as CN]daily maximumreport only (ug/L)all year011
Chloride [as Cl]daily maximumreport only (mg/L)all year011
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year011
Fluoride, total [as F]daily maximumreport only (mg/L)all year011
Arsenic, total [as As]daily maximumreport only (mg/L)all year011
Barium, total [as Ba]daily maximumreport only (mg/L)all year011
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year011
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year011
Chromium, total [as Cr]daily maximumreport only (mg/L)all year011
Copper, total [as Cu]daily maximumreport only (mg/L)all year011
Iron, total [as Fe]daily maximumreport only (mg/L)all year011
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year011
Lead, total [as Pb]daily maximumreport only (mg/L)all year011
Manganese, total [as Mn]daily maximumreport only (mg/L)all year011
Nickel, total [as Ni]daily maximumreport only (mg/L)all year011
Silver, total [as Ag]daily maximumreport only (mg/L)all year011
Zinc, total [as Zn]daily maximumreport only (mg/L)all year011
Selenium, total [as Se]daily maximumreport only (mg/L)all year011
Oil and greasedaily maximumreport only (mg/L)all year011
Phenolics, total recoverabledaily maximumreport only (mg/L)all year011
Mercury, total [as Hg]daily maximumreport only (ng/L)all year011
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year012
Cyanide, total [as CN]daily maximumreport only (ug/L)all year012
Chloride [as Cl]daily maximumreport only (mg/L)all year012
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year012
Fluoride, total [as F]daily maximumreport only (mg/L)all year012
Arsenic, total [as As]daily maximumreport only (mg/L)all year012
Barium, total [as Ba]daily maximumreport only (mg/L)all year012
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year012
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year012
Chromium, total [as Cr]daily maximumreport only (mg/L)all year012
Copper, total [as Cu]daily maximumreport only (mg/L)all year012
Iron, total [as Fe]daily maximumreport only (mg/L)all year012
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year012
Lead, total [as Pb]daily maximumreport only (mg/L)all year012
Manganese, total [as Mn]daily maximumreport only (mg/L)all year012
Nickel, total [as Ni]daily maximumreport only (mg/L)all year012
Silver, total [as Ag]daily maximumreport only (mg/L)all year012
Zinc, total [as Zn]daily maximumreport only (mg/L)all year012
Selenium, total [as Se]daily maximumreport only (mg/L)all year012
Oil and greasedaily maximumreport only (mg/L)all year012
Phenolics, total recoverabledaily maximumreport only (mg/L)all year012
Mercury, total [as Hg]daily maximumreport only (ng/L)all year012
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year013
Cyanide, total [as CN]daily maximumreport only (ug/L)all year013
Chloride [as Cl]daily maximumreport only (mg/L)all year013
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year013
Fluoride, total [as F]daily maximumreport only (mg/L)all year013
Arsenic, total [as As]daily maximumreport only (mg/L)all year013
Barium, total [as Ba]daily maximumreport only (mg/L)all year013
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year013
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year013
Chromium, total [as Cr]daily maximumreport only (mg/L)all year013
Copper, total [as Cu]daily maximumreport only (mg/L)all year013
Iron, total [as Fe]daily maximumreport only (mg/L)all year013
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year013
Lead, total [as Pb]daily maximumreport only (mg/L)all year013
Manganese, total [as Mn]daily maximumreport only (mg/L)all year013
Nickel, total [as Ni]daily maximumreport only (mg/L)all year013
Silver, total [as Ag]daily maximumreport only (mg/L)all year013
Zinc, total [as Zn]daily maximumreport only (mg/L)all year013
Selenium, total [as Se]daily maximumreport only (mg/L)all year013
Oil and greasedaily maximumreport only (mg/L)all year013
Phenolics, total recoverabledaily maximumreport only (mg/L)all year013
Mercury, total [as Hg]daily maximumreport only (ng/L)all year013
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year014
Cyanide, total [as CN]daily maximumreport only (ug/L)all year014
Chloride [as Cl]daily maximumreport only (mg/L)all year014
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year014
Fluoride, total [as F]daily maximumreport only (mg/L)all year014
Arsenic, total [as As]daily maximumreport only (mg/L)all year014
Barium, total [as Ba]daily maximumreport only (mg/L)all year014
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year014
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year014
Chromium, total [as Cr]daily maximumreport only (mg/L)all year014
Copper, total [as Cu]daily maximumreport only (mg/L)all year014
Iron, total [as Fe]daily maximumreport only (mg/L)all year014
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year014
Lead, total [as Pb]daily maximumreport only (mg/L)all year014
Manganese, total [as Mn]daily maximumreport only (mg/L)all year014
Nickel, total [as Ni]daily maximumreport only (mg/L)all year014
Silver, total [as Ag]daily maximumreport only (mg/L)all year014
Zinc, total [as Zn]daily maximumreport only (mg/L)all year014
Selenium, total [as Se]daily maximumreport only (mg/L)all year014
Oil and greasedaily maximumreport only (mg/L)all year014
Phenolics, total recoverabledaily maximumreport only (mg/L)all year014
Mercury, total [as Hg]daily maximumreport only (ng/L)all year014
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year016
Cyanide, total [as CN]daily maximumreport only (ug/L)all year016
Chloride [as Cl]daily maximumreport only (mg/L)all year016
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year016
Fluoride, total [as F]daily maximumreport only (mg/L)all year016
Arsenic, total [as As]daily maximumreport only (mg/L)all year016
Barium, total [as Ba]daily maximumreport only (mg/L)all year016
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year016
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year016
Chromium, total [as Cr]daily maximumreport only (mg/L)all year016
Copper, total [as Cu]daily maximumreport only (mg/L)all year016
Iron, total [as Fe]daily maximumreport only (mg/L)all year016
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year016
Lead, total [as Pb]daily maximumreport only (mg/L)all year016
Manganese, total [as Mn]daily maximumreport only (mg/L)all year016
Nickel, total [as Ni]daily maximumreport only (mg/L)all year016
Silver, total [as Ag]daily maximumreport only (mg/L)all year016
Zinc, total [as Zn]daily maximumreport only (mg/L)all year016
Selenium, total [as Se]daily maximumreport only (mg/L)all year016
Oil and greasedaily maximumreport only (mg/L)all year016
Phenolics, total recoverabledaily maximumreport only (mg/L)all year016
Mercury, total [as Hg]daily maximumreport only (ng/L)all year016
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year018
Cyanide, total [as CN]daily maximumreport only (ug/L)all year018
Chloride [as Cl]daily maximumreport only (mg/L)all year018
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year018
Fluoride, total [as F]daily maximumreport only (mg/L)all year018
Arsenic, total [as As]daily maximumreport only (mg/L)all year018
Barium, total [as Ba]daily maximumreport only (mg/L)all year018
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year018
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year018
Chromium, total [as Cr]daily maximumreport only (mg/L)all year018
Copper, total [as Cu]daily maximumreport only (mg/L)all year018
Iron, total [as Fe]daily maximumreport only (mg/L)all year018
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year018
Lead, total [as Pb]daily maximumreport only (mg/L)all year018
Manganese, total [as Mn]daily maximumreport only (mg/L)all year018
Nickel, total [as Ni]daily maximumreport only (mg/L)all year018
Silver, total [as Ag]daily maximumreport only (mg/L)all year018
Zinc, total [as Zn]daily maximumreport only (mg/L)all year018
Selenium, total [as Se]daily maximumreport only (mg/L)all year018
Oil and greasedaily maximumreport only (mg/L)all year018
Phenolics, total recoverabledaily maximumreport only (mg/L)all year018
Mercury, total [as Hg]daily maximumreport only (ng/L)all year018
Temperature, water deg. fahrenheitmonthly average≤ 105 deg FJun–Sep020
Temperature, water deg. fahrenheitmonthly average≤ 89 deg FJan, Feb, Mar, Apr, Nov, Dec020
Temperature, water deg. fahrenheitmonthly average≤ 96 deg FMay, Oct020
Temperature, water deg. fahrenheitdaily maximum≤ 112 deg FJun–Sep020
Temperature, water deg. fahrenheitdaily maximum≤ 94 deg FJan, Feb, Mar, Apr, Nov, Dec020
Temperature, water deg. fahrenheitdaily maximum≤ 102 deg FMay, Oct020
pHmonthly minimum≥ 6.5 SUall year020
pHmonthly maximum≤ 9 SUall year020
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year020
Cyanide, total [as CN]daily maximumreport only (ug/L)all year020
Chloride [as Cl]daily maximumreport only (mg/L)all year020
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year020
Fluoride, total [as F]daily maximumreport only (mg/L)all year020
Arsenic, total [as As]daily maximumreport only (mg/L)all year020
Barium, total [as Ba]daily maximumreport only (mg/L)all year020
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year020
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year020
Chromium, total [as Cr]daily maximumreport only (mg/L)all year020
Copper, total [as Cu]daily maximumreport only (mg/L)all year020
Iron, total [as Fe]daily maximumreport only (mg/L)all year020
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year020
Lead, total [as Pb]daily maximumreport only (mg/L)all year020
Manganese, total [as Mn]daily maximumreport only (mg/L)all year020
Nickel, total [as Ni]daily maximumreport only (mg/L)all year020
Silver, total [as Ag]daily maximumreport only (mg/L)all year020
Zinc, total [as Zn]daily maximumreport only (mg/L)all year020
Selenium, total [as Se]daily maximumreport only (mg/L)all year020
Oil and greasedaily maximumreport only (mg/L)all year020
Phenolics, total recoverabledaily maximumreport only (mg/L)all year020
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year020
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year020
Chlorine, total residualinstantaneous maximum≤ .2 mg/Lall year020
Mercury, total [as Hg]daily maximumreport only (ng/L)all year020
Temperature, water deg. fahrenheitmonthly average≤ 105 deg FJun–Sep021
Temperature, water deg. fahrenheitmonthly average≤ 89 deg FJan, Feb, Mar, Apr, Nov, Dec021
Temperature, water deg. fahrenheitmonthly average≤ 96 deg FMay, Oct021
Temperature, water deg. fahrenheitdaily maximum≤ 112 deg FJun–Sep021
Temperature, water deg. fahrenheitdaily maximum≤ 94 deg FJan, Feb, Mar, Apr, Nov, Dec021
Temperature, water deg. fahrenheitdaily maximum≤ 102 deg FMay, Oct021
pHmonthly minimum≥ 6.5 SUall year021
pHmonthly maximum≤ 9 SUall year021
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year021
Cyanide, total [as CN]daily maximumreport only (ug/L)all year021
Chloride [as Cl]daily maximumreport only (mg/L)all year021
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year021
Fluoride, total [as F]daily maximumreport only (mg/L)all year021
Arsenic, total [as As]daily maximumreport only (mg/L)all year021
Barium, total [as Ba]daily maximumreport only (mg/L)all year021
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year021
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year021
Chromium, total [as Cr]daily maximumreport only (mg/L)all year021
Copper, total [as Cu]daily maximumreport only (mg/L)all year021
Iron, total [as Fe]daily maximumreport only (mg/L)all year021
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year021
Lead, total [as Pb]daily maximumreport only (mg/L)all year021
Manganese, total [as Mn]daily maximumreport only (mg/L)all year021
Nickel, total [as Ni]daily maximumreport only (mg/L)all year021
Silver, total [as Ag]daily maximumreport only (mg/L)all year021
Zinc, total [as Zn]daily maximumreport only (mg/L)all year021
Selenium, total [as Se]daily maximumreport only (mg/L)all year021
Oil and greasedaily maximumreport only (mg/L)all year021
Phenolics, total recoverabledaily maximumreport only (mg/L)all year021
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year021
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year021
Chlorine, total residualinstantaneous maximum≤ .2 mg/Lall year021
Mercury, total [as Hg]daily maximumreport only (ng/L)all year021
Temperature, water deg. fahrenheitmonthly average≤ 105 deg FJun–Sep022
Temperature, water deg. fahrenheitmonthly average≤ 89 deg FJan, Feb, Mar, Apr, Nov, Dec022
Temperature, water deg. fahrenheitmonthly average≤ 96 deg FMay, Oct022
Temperature, water deg. fahrenheitdaily maximum≤ 112 deg FJun–Sep022
Temperature, water deg. fahrenheitdaily maximum≤ 94 deg FJan, Feb, Mar, Apr, Nov, Dec022
Temperature, water deg. fahrenheitdaily maximum≤ 102 deg FMay, Oct022
pHmonthly minimum≥ 6.5 SUall year022
pHmonthly maximum≤ 9 SUall year022
Cyanide, weak acid, dissociabledaily maximumreport only (ug/L)all year022
Cyanide, total [as CN]daily maximumreport only (ug/L)all year022
Chloride [as Cl]daily maximumreport only (mg/L)all year022
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year022
Fluoride, total [as F]daily maximumreport only (mg/L)all year022
Arsenic, total [as As]daily maximumreport only (mg/L)all year022
Barium, total [as Ba]daily maximumreport only (mg/L)all year022
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year022
Chromium, hexavalent [as Cr]daily maximumreport only (mg/L)all year022
Chromium, total [as Cr]daily maximumreport only (mg/L)all year022
Copper, total [as Cu]daily maximumreport only (mg/L)all year022
Iron, total [as Fe]daily maximumreport only (mg/L)all year022
Iron, dissolved [as Fe]daily maximumreport only (mg/L)all year022
Lead, total [as Pb]daily maximumreport only (mg/L)all year022
Manganese, total [as Mn]daily maximumreport only (mg/L)all year022
Nickel, total [as Ni]daily maximumreport only (mg/L)all year022
Silver, total [as Ag]daily maximumreport only (mg/L)all year022
Zinc, total [as Zn]daily maximumreport only (mg/L)all year022
Selenium, total [as Se]daily maximumreport only (mg/L)all year022
Oil and greasedaily maximumreport only (mg/L)all year022
Phenolics, total recoverabledaily maximumreport only (mg/L)all year022
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year022
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year022
Chlorine, total residualinstantaneous maximum≤ .2 mg/Lall year022
Mercury, total [as Hg]daily maximumreport only (ng/L)all year022
Solids, total suspended30-day average≤ 15 mg/Lall yearA01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearA01
Oil & Grease30-day average≤ 15 mg/Lall yearA01
Oil & Greasedaily maximum≤ 20 mg/Lall yearA01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearA01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearA01
Solids, total suspended30-day average≤ 15 mg/Lall yearB01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearB01
Oil & Grease30-day average≤ 15 mg/Lall yearB01
Oil & Greasedaily maximum≤ 20 mg/Lall yearB01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearB01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearB01
Solids, total suspended30-day average≤ 15 mg/Lall yearC01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearC01
Oil and grease30-day average≤ 15 mg/Lall yearC01
Oil and greasedaily maximum≤ 20 mg/Lall yearC01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearC01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearC01
BOD, 5-day, 20 deg. C30-day average≤ 30 mg/Lall yearD01
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/Lall yearD01
pHmonthly minimum≥ 6 SUall yearD01
pHmonthly maximum≤ 9 SUall yearD01
Solids, total suspended30-day average≤ 30 mg/Lall yearD01
Solids, total suspendeddaily maximum≤ 60 mg/Lall yearD01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearD01
Chlorine, total residualdaily maximum≤ .05 mg/Lall yearD01
Coliform, fecal generaldaily maximumreport only (#/100mL)all yearD01
Solids, total suspended30-day average≤ 15 mg/Lall yearE01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearE01
Oil and grease30-day average≤ 15 mg/Lall yearE01
Oil and greasedaily maximum≤ 20 mg/Lall yearE01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearE01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearE01
Solids, total suspended30-day average≤ 15 mg/Lall yearG01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearG01
Oil and grease30-day average≤ 15 mg/Lall yearG01
Oil and greasedaily maximum≤ 20 mg/Lall yearG01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearG01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearG01
pHmonthly minimum≥ 6 SUall yearJ01
pHmonthly maximum≤ 9 SUall yearJ01
Solids, total suspended30-day average≤ 15 mg/Lall yearJ01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearJ01
Oil & Grease30-day average≤ 15 mg/Lall yearJ01
Oil & Greasedaily maximum≤ 20 mg/Lall yearJ01
Copper, total [as Cu]30-day average≤ .5 mg/Lall yearJ01
Copper, total [as Cu]daily maximum≤ 1 mg/Lall yearJ01
Iron, total [as Fe]30-day average≤ 1 mg/Lall yearJ01
Iron, total [as Fe]daily maximum≤ 1 mg/Lall yearJ01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearJ01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearJ01

How strict are these limits?

Cited limits by parameter: Illinois's rules and the federal ones.

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