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Si Group, Inc.

Cyclic Crudes And Intermediates, major discharger, Morgantown, West Virginia. NPDES permit WV0022047, in force until Mar 20, 2030. Last 12 months: over a limit 2 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form B quarterly (16 values), outfall 002 form A monthly (52 values), outfall 002 form B quarterly (100 values), outfall 001 form C twice a year, outfall 002 form D yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
6 values over a limit, 0 required values missing, 0 of 21 reports late

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

Period endingParameterReportedLimitOver by
December 2025Iron, total recoverable, daily maximum3.23 mg/L≤ 1.5 mg/L115%
March 2026Iron, total recoverable, daily maximum1.9 mg/L≤ 1.5 mg/L27%

Limits in force (196)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]monthly averagereport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
pHinstantaneous minimumreport only (SU)all year001
pHinstantaneous maximumreport only (SU)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Cyanide, free [amenable to chlorination]monthly averagereport only (mg/L)all year001
Cyanide, free [amenable to chlorination]daily maximumreport only (mg/L)all year001
Iron, total recoverablemonthly averagereport only (mg/L)all year001
Iron, total recoverablemonthly averagereport only (mg/L)all year001
Iron, total recoverabledaily maximum≤ 1.5 mg/Lall year001
Iron, total recoverabledaily maximum≤ 1.5 mg/Lall year001
Zinc, total recoverablemonthly averagereport only (mg/L)all year001
Zinc, total recoverabledaily maximumreport only (mg/L)all year001
Aluminum, total recoverablemonthly averagereport only (mg/L)all year001
Aluminum, total recoverablemonthly averagereport only (mg/L)all year001
Aluminum, total recoverabledaily maximum≤ 1.76 mg/Lall year001
Aluminum, total recoverabledaily maximum≤ 1.76 mg/Lall year001
Copper, total recoverablemonthly averagereport only (mg/L)all year001
Copper, total recoverabledaily maximumreport only (mg/L)all year001
Phenolics, total recoverablemonthly averagereport 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 plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Mercury, total [as Hg]monthly averagereport only (ug/L)all year001
Mercury, total [as Hg]daily maximumreport only (ug/L)all year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Temp. diff. between samp. & upstrm deg. Fmonthly averagereport only (deg F)all year002
Temp. diff. between samp. & upstrm deg. Fdaily maximum≤ 15 deg Fall year002
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year002
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year002
BOD, 5-day, 20 deg. Cmonthly average≤ 23 lb/dall year002
BOD, 5-day, 20 deg. Cdaily maximum≤ 63 lb/dall year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Solids, total suspendedmonthly average≤ 31 lb/dall year002
Solids, total suspendeddaily maximum≤ 101 lb/dall year002
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year002
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year002
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year002
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year002
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all year002
Carbon, tot organic [TOC]monthly averagereport only (lb/d)all year002
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all year002
Carbon, tot organic [TOC]daily maximumreport only (lb/d)all year002
Cyanide, weak acid, dissociablemonthly averagereport only (mg/L)all year002
Cyanide, weak acid, dissociablemonthly averagereport only (mg/L)all year002
Cyanide, weak acid, dissociabledaily maximumreport only (mg/L)all year002
Cyanide, weak acid, dissociabledaily maximumreport only (mg/L)all year002
Chloride [as Cl]monthly averagereport only (mg/L)all year002
Chloride [as Cl]monthly averagereport only (mg/L)all year002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Chloride [as Cl]daily maximumreport only (mg/L)all year002
Arsenic, total recoverablemonthly averagereport only (mg/L)all year002
Arsenic, total recoverabledaily maximumreport only (mg/L)all year002
Nickel, total recoverablemonthly averagereport only (mg/L)all year002
Nickel, total recoverabledaily maximumreport only (mg/L)all year002
Zinc, total recoverablemonthly averagereport only (mg/L)all year002
Zinc, total recoverabledaily maximumreport only (mg/L)all year002
Aluminum, total recoverablemonthly averagereport only (mg/L)all year002
Aluminum, total recoverablemonthly averagereport only (mg/L)all year002
Aluminum, total recoverabledaily maximumreport only (mg/L)all year002
Aluminum, total recoverabledaily maximumreport only (mg/L)all year002
Lead, total recoverablemonthly averagereport only (mg/L)all year002
Lead, total recoverablemonthly averagereport only (mg/L)all year002
Lead, total recoverabledaily maximumreport only (mg/L)all year002
Lead, total recoverabledaily maximumreport only (mg/L)all year002
Copper, total recoverablemonthly averagereport only (mg/L)all year002
Copper, total recoverablemonthly averagereport only (mg/L)all year002
Copper, total recoverabledaily maximumreport only (mg/L)all year002
Copper, total recoverabledaily maximumreport only (mg/L)all year002
Phenolics, total recoverablemonthly averagereport only (ug/L)all year002
Phenolics, total recoverablemonthly averagereport only (ug/L)all year002
Phenolics, total recoverabledaily maximumreport only (ug/L)all year002
Phenolics, total recoverabledaily maximumreport only (ug/L)all year002
Phenolics, total recoverablemonthly averagereport only (lb/d)all year002
Phenolics, total recoverablemonthly averagereport only (lb/d)all year002
Phenolics, total recoverabledaily maximumreport only (lb/d)all year002
Phenolics, total recoverabledaily maximumreport only (lb/d)all year002
Acenaphthylenemonthly averagereport only (ug/L)all year002
Acenaphthylenemonthly averagereport only (ug/L)all year002
Acenaphthylenedaily maximumreport only (ug/L)all year002
Acenaphthylenedaily maximumreport only (ug/L)all year002
Acenaphthylenemonthly average≤ .013 lb/dall year002
Acenaphthylenemonthly average≤ .013 lb/dall year002
Acenaphthylenedaily maximum≤ .035 lb/dall year002
Acenaphthylenedaily maximum≤ .035 lb/dall year002
Acenaphthenemonthly averagereport only (ug/L)all year002
Acenaphthenemonthly averagereport only (ug/L)all year002
Acenaphthenedaily maximumreport only (ug/L)all year002
Acenaphthenedaily maximumreport only (ug/L)all year002
Acenaphthenemonthly average≤ .013 lb/dall year002
Acenaphthenemonthly average≤ .013 lb/dall year002
Acenaphthenedaily maximum≤ .035 lb/dall year002
Acenaphthenedaily maximum≤ .035 lb/dall year002
Anthracenemonthly averagereport only (ug/L)all year002
Anthracenedaily maximumreport only (ug/L)all year002
Anthracenemonthly average≤ .013 lb/dall year002
Anthracenedaily maximum≤ .035 lb/dall year002
Benzo[b]fluoranthenemonthly averagereport only (mg/L)all year002
Benzo[b]fluoranthenedaily maximumreport only (mg/L)all year002
Benzo[b]fluoranthenemonthly average≤ .013 lb/dall year002
Benzo[b]fluoranthenedaily maximum≤ .036 lb/dall year002
Benzo[k]fluoranthenemonthly averagereport only (ug/L)all year002
Benzo[k]fluoranthenedaily maximumreport only (ug/L)all year002
Benzo[k]fluoranthenemonthly average≤ .013 lb/dall year002
Benzo[k]fluoranthenedaily maximum≤ .035 lb/dall year002
Benzo[a]pyrenemonthly averagereport only (ug/L)all year002
Benzo[a]pyrenedaily maximumreport only (ug/L)all year002
Benzo[a]pyrenemonthly average≤ .013 lb/dall year002
Benzo[a]pyrenedaily maximum≤ .036 lb/dall year002
Chrysenemonthly averagereport only (mg/L)all year002
Chrysenedaily maximumreport only (mg/L)all year002
Chrysenemonthly average≤ .013 lb/dall year002
Chrysenedaily maximum≤ .035 lb/dall year002
Fluoranthenemonthly averagereport only (ug/L)all year002
Fluoranthenedaily maximumreport only (ug/L)all year002
Fluoranthenemonthly average≤ .015 lb/dall year002
Fluoranthenedaily maximum≤ .04 lb/dall year002
Fluorenemonthly averagereport only (ug/L)all year002
Fluorenemonthly averagereport only (ug/L)all year002
Fluorenedaily maximumreport only (ug/L)all year002
Fluorenedaily maximumreport only (ug/L)all year002
Fluorenemonthly average≤ .013 lb/dall year002
Fluorenemonthly average≤ .013 lb/dall year002
Fluorenedaily maximum≤ .035 lb/dall year002
Fluorenedaily maximum≤ .035 lb/dall year002
Indeno[1,2,3-cd]pyrenemonthly averagereport only (ug/L)all year002
Indeno[1,2,3-cd]pyrenemonthly averagereport only (ug/L)all year002
Indeno[1,2,3-cd]pyrenedaily maximumreport only (ug/L)all year002
Indeno[1,2,3-cd]pyrenedaily maximumreport only (ug/L)all year002
Benzo[a]anthracenemonthly averagereport only (mg/L)all year002
Benzo[a]anthracenedaily maximumreport only (mg/L)all year002
Benzo[a]anthracenemonthly average≤ .013 lb/dall year002
Benzo[a]anthracenedaily maximum≤ .035 lb/dall year002
Dibenz[a,h]anthracenemonthly averagereport only (ug/L)all year002
Dibenz[a,h]anthracenemonthly averagereport only (ug/L)all year002
Dibenz[a,h]anthracenedaily maximumreport only (ug/L)all year002
Dibenz[a,h]anthracenedaily maximumreport only (ug/L)all year002
2-Chlorophenolmonthly averagereport only (ug/L)all year002
2-Chlorophenoldaily maximumreport only (ug/L)all year002
2-Chlorophenolmonthly average≤ .018 lb/dall year002
2-Chlorophenoldaily maximum≤ .057 lb/dall year002
2,4-Dichlorophenolmonthly averagereport only (ug/L)all year002
2,4-Dichlorophenolmonthly averagereport only (ug/L)all year002
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year002
2,4-Dichlorophenoldaily maximumreport only (ug/L)all year002
2,4-Dichlorophenolmonthly average≤ .023 lb/dall year002
2,4-Dichlorophenolmonthly average≤ .023 lb/dall year002
2,4-Dichlorophenoldaily maximum≤ .066 lb/dall year002
2,4-Dichlorophenoldaily maximum≤ .066 lb/dall year002
2,4,6-Trichlorophenolmonthly averagereport only (ug/L)all year002
2,4,6-Trichlorophenolmonthly averagereport only (ug/L)all year002
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year002
2,4,6-Trichlorophenoldaily maximumreport only (ug/L)all year002
Phenolmonthly averagereport only (ug/L)all year002
Phenolmonthly averagereport only (ug/L)all year002
Phenoldaily maximumreport only (ug/L)all year002
Phenoldaily maximumreport only (ug/L)all year002
Phenolmonthly average≤ .009 lb/dall year002
Phenolmonthly average≤ .009 lb/dall year002
Phenoldaily maximum≤ .015 lb/dall year002
Phenoldaily maximum≤ .015 lb/dall year002
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year002
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year002
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year002
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year002
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .06 lb/dall year002
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .06 lb/dall year002
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .164 lb/dall year002
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .164 lb/dall 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
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)all year002
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)all year002
Toxicity [acute], Pimephales promelas [Fathead Minnow]monthly averagereport only (tox acute)all year002
Toxicity [acute], Pimephales promelas [Fathead Minnow]daily maximumreport only (tox acute)all year002
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year002
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year002
Chemical Oxygen Demand [COD]monthly averagereport only (lb/d)all year002
Chemical Oxygen Demand [COD]daily maximumreport only (lb/d)all year002

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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