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Union Carbide Corporation

Industrial Organic Chemicals, major discharger, South Charleston, West Virginia. NPDES permit WV0000078, in force until Aug 19, 2031. Last 12 months: over a limit 3 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 248 reports late

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

Period endingOutfallParameterReportedLimitOver by
October 2025023Coliform, fecal general, daily maximum411 #/100mL≤ 400 #/100mL3%
October 2025023Coliform, fecal general, monthly geometric mean411 #/100mL≤ 200 #/100mL106%
July 2026017Temp. diff. between samp. & upstrm deg. F, daily maximum80.7 deg F≤ 15 deg F438%

Limits in force (321)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimumreport only (SU)all year012
pHinstantaneous maximumreport only (SU)all year012
Solids, total suspendedmonthly averagereport only (mg/L)all year012
Solids, total suspendeddaily maximumreport only (mg/L)all year012
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year012
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year012
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year012
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year012
Iron, total recoverablemonthly averagereport only (mg/L)all year012
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year012
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year012
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year014
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year014
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year014
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year014
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year014
Temp. diff. between samp. & upstrm deg. Fdaily maximum≤ 15 deg Fall year014
pHinstantaneous minimum≥ 6 SUall year014
pHinstantaneous maximum≤ 9 SUall year014
Solids, total suspendedmonthly averagereport only (mg/L)all year014
Solids, total suspendeddaily maximumreport only (mg/L)all year014
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year014
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year014
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all year014
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all year014
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year014
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year014
Chlorine, total residualmonthly average≤ 28 ug/Lall year014
Chlorine, total residualdaily maximum≤ 57 ug/Lall year014
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year015
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year015
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year015
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year015
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year015
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year015
pHinstantaneous minimum≥ 6 SUall year015
pHinstantaneous maximum≤ 9 SUall year015
Solids, total suspendedmonthly averagereport only (mg/L)all year015
Solids, total suspendeddaily maximumreport only (mg/L)all year015
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year015
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year015
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year015
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year015
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all year015
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all year015
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year015
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year015
Chlorine, total residualmonthly average≤ 28 ug/Lall year015
Chlorine, total residualdaily maximum≤ 57 ug/Lall year015
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 suspendeddaily maximumreport only (mg/L)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 averagereport only (lb/d)all year017
Carbon, tot organic [TOC]daily maximumreport only (lb/d)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
Chlorine, total residualmonthly average≤ 28 ug/Lall year017
Chlorine, total residualdaily maximum≤ 57 ug/Lall year017
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year023
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year023
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year023
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year023
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year023
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year023
pHinstantaneous minimum≥ 6 SUall year023
pHinstantaneous maximum≤ 9 SUall year023
Solids, total suspendedmonthly averagereport only (mg/L)all year023
Solids, total suspendeddaily maximumreport only (mg/L)all year023
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year023
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year023
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all year023
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all year023
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year023
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year023
Chlorine, total residualmonthly average≤ 28 ug/Lall year023
Chlorine, total residualdaily maximum≤ 57 ug/Lall year023
pHinstantaneous minimumreport only (SU)all year025
pHinstantaneous maximumreport only (SU)all year025
Solids, total suspendedmonthly averagereport only (mg/L)all year025
Solids, total suspendeddaily maximumreport only (mg/L)all year025
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year025
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year025
Iron, total recoverablemonthly averagereport only (mg/L)all year025
Iron, total recoverabledaily maximumreport only (mg/L)all year025
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year025
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year025
pHinstantaneous minimumreport only (SU)all year049
pHinstantaneous maximumreport only (SU)all year049
Solids, total suspendedmonthly averagereport only (mg/L)all year049
Solids, total suspendeddaily maximumreport only (mg/L)all year049
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year049
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year049
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year049
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year049
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year049
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year049
Iron, total recoverablemonthly averagereport only (mg/L)all year049
Iron, total recoverabledaily maximumreport only (mg/L)all year049
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year049
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year049
pHinstantaneous minimumreport only (SU)all year050
pHinstantaneous maximumreport only (SU)all year050
Solids, total suspendedmonthly averagereport only (mg/L)all year050
Solids, total suspendeddaily maximumreport only (mg/L)all year050
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year050
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year050
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year050
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year050
Iron, total recoverablemonthly averagereport only (mg/L)all year050
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year050
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year050
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year050
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year050
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year050
pHinstantaneous minimumreport only (SU)all year052
pHinstantaneous maximumreport only (SU)all year052
Solids, total suspendedmonthly averagereport only (mg/L)all year052
Solids, total suspendeddaily maximumreport only (mg/L)all year052
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year052
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year052
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year052
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year052
Iron, total recoverablemonthly averagereport only (mg/L)all year052
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year052
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year052
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year052
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year052
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year052
pHinstantaneous minimumreport only (SU)all year057
pHinstantaneous maximumreport only (SU)all year057
Solids, total suspendedmonthly averagereport only (mg/L)all year057
Solids, total suspendeddaily maximumreport only (mg/L)all year057
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year057
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year057
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year057
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year057
Iron, total recoverablemonthly averagereport only (mg/L)all year057
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year057
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year057
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year057
pHinstantaneous minimumreport only (SU)all year061
pHinstantaneous maximumreport only (SU)all year061
Solids, total suspendedmonthly averagereport only (mg/L)all year061
Solids, total suspendeddaily maximumreport only (mg/L)all year061
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year061
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year061
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year061
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year061
Iron, total recoverablemonthly averagereport only (mg/L)all year061
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall 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
pHinstantaneous minimumreport only (SU)all year062
pHinstantaneous maximumreport only (SU)all year062
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year062
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all 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
pHinstantaneous minimumreport only (SU)all year063
pHinstantaneous maximumreport only (SU)all year063
Solids, total suspendedmonthly averagereport only (mg/L)all year063
Solids, total suspendeddaily maximumreport only (mg/L)all year063
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year063
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year063
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year063
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year063
Iron, total recoverablemonthly averagereport only (mg/L)all year063
Iron, total recoverabledaily maximum≤ 11.4 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
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year063
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year063
pHinstantaneous minimumreport only (SU)all year071
pHinstantaneous maximumreport only (SU)all year071
Solids, total suspendedmonthly averagereport only (mg/L)all year071
Solids, total suspendeddaily maximumreport only (mg/L)all year071
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year071
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year071
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year071
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year071
Iron, total recoverablemonthly averagereport only (mg/L)all year071
Iron, total recoverabledaily maximumreport only (mg/L)all year071
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year071
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year071
pHinstantaneous minimumreport only (SU)all year074
pHinstantaneous maximumreport only (SU)all year074
Solids, total suspendedmonthly averagereport only (mg/L)all year074
Solids, total suspendeddaily maximumreport only (mg/L)all year074
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year074
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year074
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year074
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year074
Iron, total recoverablemonthly averagereport only (mg/L)all year074
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year074
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year074
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year074
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year076
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year076
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year076
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year076
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year076
Temp. diff. between samp. & upstrm deg. Fdaily maximumreport only (deg F)all year076
pHinstantaneous minimum≥ 6 SUall year076
pHinstantaneous maximum≤ 9 SUall year076
Solids, total suspendedmonthly averagereport only (mg/L)all year076
Solids, total suspendeddaily maximumreport only (mg/L)all year076
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year076
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year076
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all year076
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all year076
Copper, total recoverablemonthly average≤ .015 mg/Lall year076
Copper, total recoverabledaily maximum≤ .031 mg/Lall year076
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year076
Chlorine, total residualmonthly average≤ 28 ug/Lall year076
Chlorine, total residualdaily maximum≤ 57 ug/Lall year076
pHinstantaneous minimumreport only (SU)all year079
pHinstantaneous maximumreport only (SU)all year079
Solids, total suspendedmonthly averagereport only (mg/L)all year079
Solids, total suspendeddaily maximumreport only (mg/L)all year079
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year079
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year079
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year079
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year079
Iron, total recoverablemonthly averagereport only (mg/L)all year079
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year079
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year079
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year079
pHinstantaneous minimumreport only (SU)all year081
pHinstantaneous maximumreport only (SU)all year081
Solids, total suspendedmonthly averagereport only (mg/L)all year081
Solids, total suspendeddaily maximumreport only (mg/L)all year081
Oil and grease, hexane extr methodmonthly averagereport only (mg/L)all year081
Oil and grease, hexane extr methoddaily maximumreport only (mg/L)all year081
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year081
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year081
Iron, total recoverablemonthly averagereport only (mg/L)all year081
Iron, total recoverabledaily maximum≤ 11.4 mg/Lall year081
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year081
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year081
pHinstantaneous minimumreport only (SU)all year083
pHinstantaneous maximumreport only (SU)all year083
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year083
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year083
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year083
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year083
pHinstantaneous minimumreport only (SU)all year084
pHinstantaneous maximumreport only (SU)all year084
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year084
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year084
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year084
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year084
pHinstantaneous minimumreport only (SU)all year085
pHinstantaneous maximumreport only (SU)all year085
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year085
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year085
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year085
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year085
pHinstantaneous minimumreport only (SU)all year087
pHinstantaneous maximumreport only (SU)all year087
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year087
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year087
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year087
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year087
pHinstantaneous minimumreport only (SU)all year088
pHinstantaneous maximumreport only (SU)all year088
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year088
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year088
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year088
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year088
pHinstantaneous minimumreport only (SU)all year089
pHinstantaneous maximumreport only (SU)all year089
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year089
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year089
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year089
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year089
pHinstantaneous minimumreport only (SU)all year090
pHinstantaneous maximumreport only (SU)all year090
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year090
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year090
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year090
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year090
pHinstantaneous minimumreport only (SU)all year092
pHinstantaneous maximumreport only (SU)all year092
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year092
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year092
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year092
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year092
Carbon, tot organic [TOC]monthly average≤ 1887 lb/dall year093
Carbon, tot organic [TOC]daily maximum≤ 2565 lb/dall year093
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year114
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year114
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year115
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year115
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year123
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year123
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all yearINT1
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all yearINT1
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all yearINT1
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all yearINT1
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINT1
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINT1
Velocity of intakemonthly averagereport only (ft/sec)all yearINT1
Velocity of intakedaily maximum≤ .5 ft/secall yearINT1
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all yearINT2
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all yearINT2
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all yearINT2
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all yearINT2
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINT2
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINT2
Velocity of intakemonthly averagereport only (ft/sec)all yearINT2
Velocity of intakedaily maximum≤ .5 ft/secall yearINT2

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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