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The Chemours Company FC, LLC

Industrial Organic Chemicals, major discharger, Belle, West Virginia. NPDES permit WV0002399, in force until Oct 23, 2030. Last 12 months: over a limit 20 times (last August 2026), 26 required values missing, 58 of 185 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 21 days after each period: outfall 001 form A monthly (14 values), outfall 003 form A monthly (18 values), outfall 017 form A monthly (14 values), outfall 021 form A monthly (16 values), outfall 028 form A monthly (20 values), outfall 044 form A monthly (18 values), and 27 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
7 values over a limit, 16 required values missing, 147 of 186 reports late

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

All 20 values over a limit
Period endingOutfallParameterReportedLimitOver by
December 2025062Cyanide, free [amenable to chlorination], daily maximum2.22 mg/L≤ .4 mg/L455%
December 2025062Cyanide, free [amenable to chlorination], monthly average.43 mg/L≤ .26 mg/L65%
February 2026001Carbon, tot organic [TOC], daily maximum21.865 mg/L≤ 5 mg/L337%
February 2026001Carbon, tot organic [TOC], monthly average21.865 mg/L≤ 4 mg/L447%
March 2026001Carbon, tot organic [TOC], daily maximum82.364 mg/L≤ 5 mg/L1547%
March 2026001Carbon, tot organic [TOC], monthly average82.364 mg/L≤ 4 mg/L1959%
March 2026021Carbon, tot organic [TOC], monthly average5 mg/L≤ 4 mg/L25%
April 2026001Carbon, tot organic [TOC], daily maximum17.365 mg/L≤ 5 mg/L247%
April 2026001Carbon, tot organic [TOC], monthly average17.365 mg/L≤ 4 mg/L334%
June 2026021Carbon, tot organic [TOC], daily maximum10.8 mg/L≤ 5 mg/L116%
June 2026021Carbon, tot organic [TOC], monthly average10.8 mg/L≤ 4 mg/L170%
July 2026001Carbon, tot organic [TOC], daily maximum13.5 mg/L≤ 5 mg/L170%
July 2026001Carbon, tot organic [TOC], monthly average13.5 mg/L≤ 4 mg/L238%
July 2026046pH, instantaneous minimum3.07 SU≥ 6 SU—
August 2026001Carbon, tot organic [TOC], daily maximum42.63 mg/L≤ 5 mg/L753%
August 2026001Carbon, tot organic [TOC], monthly average42.63 mg/L≤ 4 mg/L966%
August 2026003Aluminum, total recoverable, daily maximum15.6 mg/L≤ 7.65 mg/L104%
August 2026003Aluminum, total recoverable, monthly average15.6 mg/L≤ 3.81 mg/L309%
August 2026003Iron, total recoverable, monthly average22 mg/L≤ 8.48 mg/L159%
August 2026062Coliform, fecal general, monthly average228.2 #/100mL≤ 200 #/100mL14%

Limits in force (387)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year001
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year001
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year001
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year001
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year001
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year001
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year001
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year001
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year001
Iron, total recoverablemonthly averagereport only (mg/L)all year001
Iron, total recoverabledaily maximumreport only (mg/L)all year001
Aluminum, total recoverablemonthly averagereport only (mg/L)all year001
Aluminum, 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
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year003
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year003
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year003
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year003
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year003
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year003
pHinstantaneous minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year003
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year003
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year003
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year003
Iron, total recoverablemonthly average≤ 8.48 mg/Lall year003
Iron, total recoverabledaily maximum≤ 24 mg/Lall year003
Aluminum, total recoverablemonthly average≤ 3.81 mg/Lall year003
Aluminum, total recoverabledaily maximum≤ 7.65 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pHinstantaneous minimumreport only (SU)all year013
pHinstantaneous maximumreport only (SU)all year013
Solids, total suspendedmonthly averagereport only (mg/L)all year013
Solids, total suspendeddaily maximumreport only (mg/L)all year013
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year013
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year013
Iron, total recoverablemonthly averagereport only (mg/L)all year013
Iron, total recoverabledaily maximumreport only (mg/L)all year013
Aluminum, total recoverablemonthly averagereport only (mg/L)all year013
Aluminum, total recoverabledaily maximumreport only (mg/L)all year013
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year013
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year013
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year013
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year013
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year017
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year017
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year017
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year017
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year017
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year017
pHinstantaneous minimum≥ 6 SUall year017
pHinstantaneous maximum≤ 9 SUall year017
Solids, total suspendedmonthly averagereport only (mg/L)all year017
Solids, total suspendedmonthly averagereport only (mg/L)all year017
Solids, total suspendeddaily maximumreport only (mg/L)all year017
Solids, total suspendeddaily maximumreport only (mg/L)all year017
Solids, total suspendedmonthly averagereport only (lb/d)all year017
Solids, total suspendedmonthly averagereport only (lb/d)all year017
Solids, total suspendeddaily maximumreport only (lb/d)all year017
Solids, total suspendeddaily maximumreport only (lb/d)all year017
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year017
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year017
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year017
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year017
Iron, total recoverablemonthly averagereport only (mg/L)all year017
Iron, total recoverablemonthly averagereport only (mg/L)all year017
Iron, total recoverabledaily maximumreport only (mg/L)all year017
Iron, total recoverabledaily maximumreport only (mg/L)all year017
Aluminum, total recoverablemonthly averagereport only (mg/L)all year017
Aluminum, total recoverablemonthly averagereport only (mg/L)all year017
Aluminum, total recoverabledaily maximumreport only (mg/L)all year017
Aluminum, total recoverabledaily maximumreport only (mg/L)all year017
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year017
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year017
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year021
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year021
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year021
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year021
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year021
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year021
pHinstantaneous minimumreport only (SU)all year021
pHinstantaneous maximumreport only (SU)all year021
Solids, total suspendedmonthly averagereport only (mg/L)all year021
Solids, total suspendeddaily maximumreport only (mg/L)all year021
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year021
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year021
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year021
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year021
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year021
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year021
Iron, total recoverablemonthly averagereport only (mg/L)all year021
Iron, total recoverabledaily maximumreport only (mg/L)all year021
Aluminum, total recoverablemonthly averagereport only (mg/L)all year021
Aluminum, 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
Temperature, water deg. fahrenheitmonthly average≤ 93 deg Fall year028
Temperature, water deg. fahrenheitdaily maximum≤ 100 deg Fall year028
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year028
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year028
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year028
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year028
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year028
Oxygen, dissolved [DO]instantaneous maximumreport only (mg/L)all year028
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year028
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year028
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year028
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year028
pHinstantaneous minimum≥ 6 SUall year028
pHinstantaneous maximum≤ 9 SUall year028
Solids, total suspendedmonthly averagereport only (mg/L)all year028
Solids, total suspendeddaily maximumreport only (mg/L)all year028
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year028
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year028
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year028
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year028
Iron, total recoverablemonthly averagereport only (mg/L)all year028
Iron, total recoverablemonthly averagereport only (mg/L)all year028
Iron, total recoverabledaily maximumreport only (mg/L)all year028
Iron, total recoverabledaily maximumreport only (mg/L)all year028
Selenium, total recoverablemonthly averagereport only (mg/L)all year028
Selenium, total recoverablemonthly averagereport only (mg/L)all year028
Selenium, total recoverabledaily maximumreport only (mg/L)all year028
Selenium, total recoverabledaily maximumreport only (mg/L)all year028
Aluminum, total recoverablemonthly averagereport only (mg/L)all year028
Aluminum, total recoverabledaily maximumreport only (mg/L)all year028
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year028
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year028
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year044
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year044
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year044
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year044
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year044
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year044
pHinstantaneous minimum≥ 6 SUall year044
pHinstantaneous maximum≤ 9 SUall year044
Solids, total suspendedmonthly averagereport only (mg/L)all year044
Solids, total suspendeddaily maximumreport only (mg/L)all year044
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year044
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year044
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year044
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year044
Iron, total recoverablemonthly average≤ 8.87 mg/Lall year044
Iron, total recoverabledaily maximum≤ 24.1 mg/Lall year044
Aluminum, total recoverablemonthly average≤ 3.81 mg/Lall year044
Aluminum, total recoverabledaily maximum≤ 7.65 mg/Lall year044
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year044
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year044
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year046
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year046
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year046
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year046
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year046
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year046
pHinstantaneous minimum≥ 6 SUall year046
pHinstantaneous maximum≤ 9 SUall year046
Solids, total suspendedmonthly averagereport only (mg/L)all year046
Solids, total suspendedmonthly averagereport only (mg/L)all year046
Solids, total suspendeddaily maximumreport only (mg/L)all year046
Solids, total suspendeddaily maximumreport only (mg/L)all year046
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year046
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year046
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year046
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year046
Iron, total recoverablemonthly averagereport only (mg/L)all year046
Iron, total recoverablemonthly averagereport only (mg/L)all year046
Iron, total recoverabledaily maximumreport only (mg/L)all year046
Iron, total recoverabledaily maximumreport only (mg/L)all year046
Aluminum, total recoverablemonthly averagereport only (mg/L)all year046
Aluminum, total recoverablemonthly averagereport only (mg/L)all year046
Aluminum, total recoverabledaily maximumreport only (mg/L)all year046
Aluminum, total recoverabledaily maximumreport only (mg/L)all year046
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year046
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year046
Temperature, water deg. fahrenheitdaily average≤ 93 deg Fall year055
Temperature, water deg. fahrenheitinstantaneous maximum≤ 100 deg Fall year055
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year055
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year055
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year055
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year055
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year055
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all year055
Oxygen, dissolved [DO]instantaneous maximumreport only (mg/L)all year055
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year055
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year055
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year055
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year055
pHinstantaneous minimum≥ 6 SUall year055
pHinstantaneous maximum≤ 9 SUall year055
Solids, total suspendedmonthly averagereport only (mg/L)all year055
Solids, total suspendeddaily maximumreport only (mg/L)all year055
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year055
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year055
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year055
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year055
Iron, total recoverablemonthly averagereport only (mg/L)all year055
Iron, total recoverabledaily maximumreport only (mg/L)all year055
Selenium, total recoverablemonthly averagereport only (mg/L)all year055
Selenium, total recoverablemonthly averagereport only (mg/L)all year055
Selenium, total recoverabledaily maximumreport only (mg/L)all year055
Selenium, total recoverabledaily maximumreport only (mg/L)all year055
Aluminum, total recoverablemonthly averagereport only (mg/L)all year055
Aluminum, total recoverabledaily maximumreport only (mg/L)all year055
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year055
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year055
pHinstantaneous minimumreport only (SU)all year056
pHinstantaneous maximumreport only (SU)all year056
Solids, total suspendedmonthly averagereport only (mg/L)all year056
Solids, total suspendeddaily maximumreport only (mg/L)all year056
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year056
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year056
Iron, total recoverablemonthly averagereport only (mg/L)all year056
Iron, total recoverabledaily maximumreport only (mg/L)all year056
Aluminum, total recoverablemonthly averagereport only (mg/L)all year056
Aluminum, total recoverabledaily maximumreport only (mg/L)all year056
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year056
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year056
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year056
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year056
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year061
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year061
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year061
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year061
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year061
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year061
pHinstantaneous minimum≥ 6 SUall year061
pHinstantaneous maximum≤ 9 SUall year061
Solids, total suspendedmonthly averagereport only (mg/L)all year061
Solids, total suspendeddaily maximumreport only (mg/L)all year061
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year061
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year061
Carbon, tot organic [TOC]monthly average≤ 4 mg/Lall year061
Carbon, tot organic [TOC]daily maximum≤ 5 mg/Lall year061
Iron, total recoverablemonthly averagereport only (mg/L)all year061
Iron, total recoverablemonthly averagereport only (mg/L)all year061
Iron, total recoverabledaily maximumreport only (mg/L)all year061
Iron, total recoverabledaily maximumreport only (mg/L)all year061
Aluminum, total recoverablemonthly averagereport only (mg/L)all year061
Aluminum, total recoverablemonthly averagereport only (mg/L)all year061
Aluminum, total recoverabledaily maximumreport only (mg/L)all year061
Aluminum, total recoverabledaily maximumreport only (mg/L)all year061
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year061
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year061
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year062
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year062
BOD, 5-day, 20 deg. Cmonthly average≤ 413 lb/dall year062
BOD, 5-day, 20 deg. Cdaily maximum≤ 1107 lb/dall year062
pHinstantaneous minimumreport only (SU)all year062
pHinstantaneous maximumreport only (SU)all year062
Solids, total suspendedmonthly averagereport only (mg/L)all year062
Solids, total suspendeddaily maximumreport only (mg/L)all year062
Solids, total suspendedmonthly average≤ 552 lb/dall year062
Solids, total suspendeddaily maximum≤ 1778 lb/dall year062
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year062
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year062
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year062
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year062
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year062
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year062
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year062
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year062
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year062
Nitrogen, nitrite total [as N]monthly averagereport only (mg/L)all year062
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year062
Nitrogen, nitrite total [as N]daily maximumreport only (mg/L)all year062
Cyanide, total [as CN]monthly averagereport only (mg/L)all year062
Cyanide, total [as CN]daily maximumreport only (mg/L)all year062
Cyanide, total [as CN]monthly average≤ 2.83 lb/dall year062
Cyanide, total [as CN]daily maximum≤ 6.31 lb/dall year062
Cyanide, free [amenable to chlorination]monthly average≤ .26 mg/Lall year062
Cyanide, free [amenable to chlorination]daily maximum≤ .4 mg/Lall year062
Cyanide, free [amenable to chlorination]monthly averagereport only (lb/d)all year062
Cyanide, free [amenable to chlorination]daily maximumreport only (lb/d)all year062
Chloride [as Cl]monthly averagereport only (mg/L)all year062
Chloride [as Cl]monthly averagereport only (mg/L)all year062
Chloride [as Cl]daily maximumreport only (mg/L)all year062
Chloride [as Cl]daily maximumreport only (mg/L)all year062
Iron, total recoverablemonthly averagereport only (mg/L)all year062
Iron, total recoverabledaily maximumreport only (mg/L)all year062
Zinc, total recoverablemonthly averagereport only (mg/L)all year062
Zinc, total recoverablemonthly averagereport only (mg/L)all year062
Zinc, total recoverabledaily maximumreport only (mg/L)all year062
Zinc, total recoverabledaily maximumreport only (mg/L)all year062
Aluminum, total recoverablemonthly averagereport only (mg/L)all year062
Aluminum, total recoverabledaily maximumreport only (mg/L)all year062
Copper, total recoverablemonthly averagereport only (mg/L)all year062
Copper, total recoverablemonthly averagereport only (mg/L)all year062
Copper, total recoverabledaily maximumreport only (mg/L)all year062
Copper, total recoverabledaily maximumreport only (mg/L)all year062
Carbon tetrachloridemonthly averagereport only (ug/L)all year062
Carbon tetrachloridedaily maximumreport only (ug/L)all year062
Carbon tetrachloridemonthly average≤ .187 lb/dall year062
Carbon tetrachloridedaily maximum≤ .394 lb/dall year062
Chloroformmonthly averagereport only (ug/L)all year062
Chloroformdaily maximumreport only (ug/L)all year062
Chloroformmonthly average≤ .218 lb/dall year062
Chloroformdaily maximum≤ .477 lb/dall year062
Methyl chloride [Chloromethane]monthly averagereport only (ug/L)all year062
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)all year062
Methyl chloride [Chloromethane]monthly average≤ .893 lb/dall year062
Methyl chloride [Chloromethane]daily maximum≤ 1.972 lb/dall year062
4-Nitrophenolmonthly averagereport only (ug/L)all year062
4-Nitrophenoldaily maximumreport only (ug/L)all year062
4-Nitrophenolmonthly average≤ .747 lb/dall year062
4-Nitrophenoldaily maximum≤ 1.287 lb/dall year062
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year062
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year062
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)all year062
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)all year062
Toxicity [acute], Pimephales promelas [Fathead Minnow]monthly averagereport only (tox acute)all year062
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox acute)all year062
Coliform, fecal generalmonthly average≤ 200 #/100mLall year062
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year062
pH range excursions, > 60 minutesmonthly maximum≤ 0 occur/moall year062
pH range excursions, monthly total accummonthly total≤ 446 minall year062
Cyanide, free [amenable to chlorination]monthly average≤ .03 mg/Lall year063
Cyanide, free [amenable to chlorination]daily maximum≤ .065 mg/Lall year063
Chloride [as Cl]monthly average≤ 724 mg/Lall year063
Chloride [as Cl]daily maximum≤ 2568 mg/Lall year063
Zinc, total recoverablemonthly average≤ .126 mg/Lall year063
Zinc, total recoverabledaily maximum≤ .252 mg/Lall year063
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year063
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year063
Toxicity [acute], Ceriodaphnia dubiamonthly average≤ .5 tox acuteall year063
Toxicity [acute], Ceriodaphnia dubiadaily maximum≤ 1 tox acuteall year063
pHinstantaneous minimumreport only (SU)all year070
pHinstantaneous maximumreport only (SU)all year070
Solids, total suspendedmonthly averagereport only (mg/L)all year070
Solids, total suspendeddaily maximumreport only (mg/L)all year070
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year070
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year070
Iron, total recoverablemonthly averagereport only (mg/L)all year070
Iron, total recoverabledaily maximumreport only (mg/L)all year070
Selenium, total recoverablemonthly averagereport only (mg/L)all year070
Selenium, total recoverabledaily maximumreport only (mg/L)all year070
Aluminum, total recoverablemonthly averagereport only (mg/L)all year070
Aluminum, total recoverabledaily maximumreport only (mg/L)all year070
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year070
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year070
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year070
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year070
pHinstantaneous minimumreport only (SU)all year075
pHinstantaneous maximumreport only (SU)all year075
Solids, total suspendedmonthly averagereport only (mg/L)all year075
Solids, total suspendeddaily maximumreport only (mg/L)all year075
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year075
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year075
Iron, total recoverablemonthly averagereport only (mg/L)all year075
Iron, total recoverabledaily maximumreport only (mg/L)all year075
Selenium, total recoverablemonthly averagereport only (mg/L)all year075
Selenium, total recoverabledaily maximumreport only (mg/L)all year075
Aluminum, total recoverablemonthly averagereport only (mg/L)all year075
Aluminum, total recoverabledaily maximumreport only (mg/L)all year075
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year075
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year075
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year075
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year075
pHinstantaneous minimumreport only (SU)all year080
pHinstantaneous maximumreport only (SU)all year080
Solids, total suspendedmonthly averagereport only (mg/L)all year080
Solids, total suspendeddaily maximumreport only (mg/L)all year080
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year080
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year080
Iron, total recoverablemonthly averagereport only (mg/L)all year080
Iron, total recoverabledaily maximumreport only (mg/L)all year080
Selenium, total recoverablemonthly averagereport only (mg/L)all year080
Selenium, total recoverabledaily maximumreport only (mg/L)all year080
Aluminum, total recoverablemonthly averagereport only (mg/L)all year080
Aluminum, total recoverabledaily maximumreport only (mg/L)all year080
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year080
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year080
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year080
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year080
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all yearINT
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all yearINT

New limits from Dec 1, 2028

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Aluminum, total recoverable, daily maximum outfall 0280.75 mg/Lnew0.0765 mg/L (9 values)0.102×
Aluminum, total recoverable, monthly average outfall 0280.374 mg/Lnew0.0765 mg/L (9 values)0.205×
Aluminum, total recoverable, daily maximum outfall 0550.75 mg/Lnew0.1025 mg/L (8 values)0.137×
Aluminum, total recoverable, monthly average outfall 0550.374 mg/Lnew0.1025 mg/L (8 values)0.274×
Iron, total recoverable, daily maximum outfall 0552.54 mg/Lnew0.1625 mg/L (8 values)0.064×
Iron, total recoverable, monthly average outfall 0551.12 mg/Lnew0.1625 mg/L (8 values)0.145×

How strict are these limits?

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

Same industry: the 28 Chemicals and Allied Products permits in West Virginia.

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