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MPM Silicones, LLC

Industrial Organic Chemicals, major discharger, Friendly, West Virginia. NPDES permit WV0000094 expired Oct 15, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (32 values), outfall 001 form B quarterly (92 values), outfall 002 form A monthly (26 values), outfall 002 form B quarterly (32 values), outfall 013 form B quarterly (6 values), outfall 014 form B quarterly (4 values), and 16 more forms
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 2 required values missing, 0 of 73 reports late

Limits in force (372)

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
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 1730 lb/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 4613 lb/dall year001
pHinstantaneous minimumreport only (SU)all year001
pHinstantaneous maximumreport only (SU)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 2480 lb/dall year001
Solids, total suspendeddaily maximum≤ 7962 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 42 mg/Lall year001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year001
Chloride [as Cl]monthly average≤ 1365 mg/Lall year001
Chloride [as Cl]daily maximum≤ 1839 mg/Lall year001
Copper, total [as Cu]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]monthly averagereport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]monthly average≤ 54 lb/dall year001
Copper, total [as Cu]monthly average≤ 54 lb/dall year001
Copper, total [as Cu]daily maximum≤ 126 lb/dall year001
Copper, total [as Cu]daily maximum≤ 126 lb/dall year001
Nickel, total [as Ni]monthly averagereport only (mg/L)all year001
Nickel, total [as Ni]monthly averagereport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Nickel, total [as Ni]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]monthly averagereport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]monthly average≤ 39 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 97 lb/dall year001
Aluminum, total recoverablemonthly average≤ .8 mg/Lall year001
Aluminum, total recoverabledaily maximum≤ 2.7 mg/Lall year001
1,2-Dichloroethanemonthly averagereport only (ug/L)all year001
1,2-Dichloroethanemonthly averagereport only (ug/L)all year001
1,2-Dichloroethanedaily maximumreport only (ug/L)all year001
1,2-Dichloroethanedaily maximumreport only (ug/L)all year001
1,2-Dichloroethanemonthly average≤ 2.6 lb/dall year001
1,2-Dichloroethanemonthly average≤ 2.6 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 8.1 lb/dall year001
1,2-Dichloroethanedaily maximum≤ 8.1 lb/dall year001
Bromoformmonthly averagereport only (ug/L)all year001
Bromoformmonthly averagereport only (ug/L)all year001
Bromoformdaily maximumreport only (ug/L)all year001
Bromoformdaily maximumreport only (ug/L)all year001
Phenolics, total recoverablemonthly averagereport only (ug/L)all year001
Phenolics, total recoverablemonthly averagereport only (ug/L)all year001
Phenolics, total recoverabledaily maximumreport only (ug/L)all year001
Phenolics, total recoverabledaily maximumreport only (ug/L)all year001
Toluenemonthly averagereport only (ug/L)all year001
Toluenemonthly averagereport only (ug/L)all year001
Toluenedaily maximumreport only (ug/L)all year001
Toluenedaily maximumreport only (ug/L)all year001
Toluenemonthly average≤ 1 lb/dall year001
Toluenemonthly average≤ 1 lb/dall year001
Toluenedaily maximum≤ 3.1 lb/dall year001
Toluenedaily maximum≤ 3.1 lb/dall year001
Acrylonitrilemonthly averagereport only (ug/L)all year001
Acrylonitrilemonthly averagereport only (ug/L)all year001
Acrylonitriledaily maximumreport only (ug/L)all year001
Acrylonitriledaily maximumreport only (ug/L)all year001
Acrylonitrilemonthly average≤ 3.7 lb/dall year001
Acrylonitrilemonthly average≤ 3.7 lb/dall year001
Acrylonitriledaily maximum≤ 9.3 lb/dall year001
Acrylonitriledaily maximum≤ 9.3 lb/dall year001
Ethylbenzenemonthly averagereport only (ug/L)all year001
Ethylbenzenemonthly averagereport only (ug/L)all year001
Ethylbenzenedaily maximumreport only (ug/L)all year001
Ethylbenzenedaily maximumreport only (ug/L)all year001
Ethylbenzenemonthly average≤ 1.2 lb/dall year001
Ethylbenzenemonthly average≤ 1.2 lb/dall year001
Ethylbenzenedaily maximum≤ 4.2 lb/dall year001
Ethylbenzenedaily maximum≤ 4.2 lb/dall year001
Methyl chloride [Chloromethane]monthly averagereport only (ug/L)all year001
Methyl chloride [Chloromethane]monthly averagereport only (ug/L)all year001
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)all year001
Methyl chloride [Chloromethane]daily maximumreport only (ug/L)all year001
Methyl chloride [Chloromethane]monthly average≤ 3.3 lb/dall year001
Methyl chloride [Chloromethane]monthly average≤ 3.3 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ 7.3 lb/dall year001
Methyl chloride [Chloromethane]daily maximum≤ 7.3 lb/dall year001
Methylene chloridemonthly averagereport only (ug/L)all year001
Methylene chloridemonthly averagereport only (ug/L)all year001
Methylene chloridedaily maximumreport only (ug/L)all year001
Methylene chloridedaily maximumreport only (ug/L)all year001
Methylene chloridemonthly average≤ 1.5 lb/dall year001
Methylene chloridemonthly average≤ 1.5 lb/dall year001
Methylene chloridedaily maximum≤ 3.4 lb/dall year001
Methylene chloridedaily maximum≤ 3.4 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]monthly averagereport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximumreport only (ug/L)all year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 4 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 4 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 10.7 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 10.7 lb/dall year001
Di-n-butyl phthalatemonthly averagereport only (ug/L)all year001
Di-n-butyl phthalatedaily maximumreport only (ug/L)all year001
Di-n-butyl phthalatemonthly average≤ 1 lb/dall year001
Di-n-butyl phthalatedaily maximum≤ 2.2 lb/dall year001
Vinyl chloridemonthly averagereport only (ug/L)all year001
Vinyl chloridemonthly averagereport only (ug/L)all year001
Vinyl chloridedaily maximumreport only (ug/L)all year001
Vinyl chloridedaily maximumreport only (ug/L)all year001
Vinyl chloridemonthly average≤ 4 lb/dall year001
Vinyl chloridemonthly average≤ 4 lb/dall year001
Vinyl chloridedaily maximum≤ 10.3 lb/dall year001
Vinyl chloridedaily maximum≤ 10.3 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximum≤ 6.5 MGDall year001
Chlorine, total residualmonthly average≤ 55 ug/Lall year001
Chlorine, total residualdaily maximum≤ 110 ug/Lall year001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)all year001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]monthly average≤ 6.5 tox chronicall year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]daily maximum≤ 13 tox chronicall year001
Mercury, total [as Hg]monthly average≤ .05 ug/Lall year001
Mercury, total [as Hg]daily maximum≤ .146 ug/Lall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year001
pH range excursions, > 60 minutesdaily maximum≤ 0 occur/moall year001
pH range excursions, monthly total accummonthly maximum≤ 446 minall year001
Chloroethanemonthly averagereport only (ug/L)all year001
Chloroethanemonthly averagereport only (ug/L)all year001
Chloroethanedaily maximumreport only (ug/L)all year001
Chloroethanedaily maximumreport only (ug/L)all year001
Chloroethanemonthly average≤ 4 lb/dall year001
Chloroethanemonthly average≤ 4 lb/dall year001
Chloroethanedaily maximum≤ 10.3 lb/dall year001
Chloroethanedaily maximum≤ 10.3 lb/dall year001
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Jan002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)May002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Oct002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Jul002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Mar002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Dec002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Aug002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Feb002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Apr002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Jun002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Nov002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)Sep002
Temperature, water deg. fahrenheitinstantaneous maximum≤ 72.7 deg FJan002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)May002
Temperature, water deg. fahrenheitinstantaneous maximum≤ 96.5 deg FOct002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Jul002
Temperature, water deg. fahrenheitinstantaneous maximum≤ 73.9 deg FMar002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Dec002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Aug002
Temperature, water deg. fahrenheitinstantaneous maximum≤ 69.8 deg FFeb002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Apr002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Jun002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Nov002
Temperature, water deg. fahrenheitinstantaneous maximumreport only (deg F)Sep002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
pHinstantaneous minimumreport only (SU)all year002
pHinstantaneous maximumreport only (SU)all year002
Solids, total suspendedmonthly average≤ 85 mg/Lall year002
Solids, total suspendeddaily maximum≤ 138 mg/Lall 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]monthly averagereport only (lb/d)all year002
Carbon, tot organic [TOC]daily maximumreport only (lb/d)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]monthly average≤ 6.1 lb/dall year002
Carbon, tot organic [TOC]daily maximum≤ 8.7 lb/dall 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]monthly averagereport only (lb/d)all year002
Carbon, tot organic [TOC]daily maximumreport only (lb/d)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
Iron, total recoverablemonthly averagereport only (mg/L)all year002
Iron, total recoverablemonthly averagereport only (mg/L)all year002
Iron, total recoverabledaily maximumreport only (mg/L)all year002
Iron, total recoverabledaily maximumreport only (mg/L)all year002
Selenium, total recoverablemonthly averagereport only (mg/L)all year002
Selenium, total recoverablemonthly averagereport only (mg/L)all year002
Selenium, total recoverabledaily maximumreport only (mg/L)all year002
Selenium, 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 average≤ .018 mg/Lall year002
Copper, total recoverabledaily maximum≤ .042 mg/Lall 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
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualmonthly averagereport only (ug/L)all year002
Chlorine, total residualmonthly averagereport only (ug/L)all year002
Chlorine, total residualdaily maximumreport only (ug/L)all year002
Chlorine, total residualdaily maximumreport only (ug/L)all year002
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year002
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year002
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year002
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year002
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)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]daily maximumreport only (mg/L)all year002
pH range excursions, > 60 minutesdaily maximum≤ 0 occur/moall year002
pH range excursions, monthly total accumdaily maximum≤ 446 minall year002
pHinstantaneous minimumreport only (SU)all year003
pHinstantaneous maximumreport only (SU)all year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Cyanide, total [as CN]monthly averagereport only (mg/L)all year003
Cyanide, total [as CN]daily maximumreport only (mg/L)all year003
Iron, total [as Fe]monthly averagereport only (mg/L)all year003
Iron, total [as Fe]daily maximumreport only (mg/L)all year003
Aluminum, total recoverablemonthly averagereport only (mg/L)all year003
Aluminum, total recoverabledaily maximumreport only (mg/L)all year003
Copper, total recoverablemonthly averagereport only (mg/L)all year003
Copper, total recoverabledaily maximumreport only (mg/L)all 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
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year003
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year003
pHinstantaneous minimum≥ 6 SUall year004
pHinstantaneous maximum≤ 9 SUall year004
Solids, total suspendedmonthly averagereport only (mg/L)all year004
Solids, total suspendeddaily maximumreport only (mg/L)all year004
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year004
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year004
Iron, total recoverablemonthly averagereport only (mg/L)all year004
Iron, total recoverabledaily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
pHinstantaneous minimum≥ 6 SUall year005
pHinstantaneous maximum≤ 9 SUall year005
Solids, total suspendedmonthly averagereport only (mg/L)all year005
Solids, total suspendeddaily maximumreport only (mg/L)all year005
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year005
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year005
Iron, total recoverablemonthly averagereport only (mg/L)all year005
Iron, total recoverabledaily maximumreport only (mg/L)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
pHinstantaneous minimum≥ 6 SUall year006
pHinstantaneous maximum≤ 9 SUall year006
Solids, total suspendedmonthly averagereport only (mg/L)all year006
Solids, total suspendeddaily maximumreport only (mg/L)all year006
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year006
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year006
Iron, total recoverablemonthly averagereport only (mg/L)all year006
Iron, total recoverabledaily maximumreport only (mg/L)all year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
pHinstantaneous minimum≥ 6 SUall year007
pHinstantaneous maximum≤ 9 SUall year007
Solids, total suspendedmonthly averagereport only (mg/L)all year007
Solids, total suspendeddaily maximumreport only (mg/L)all year007
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year007
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year007
Iron, total recoverablemonthly averagereport only (mg/L)all year007
Iron, total recoverabledaily maximumreport only (mg/L)all year007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
pHinstantaneous minimumreport only (SU)all year009
pHinstantaneous maximumreport only (SU)all year009
Solids, total suspendedmonthly averagereport only (mg/L)all year009
Solids, total suspendeddaily maximumreport only (mg/L)all year009
Iron, total [as Fe]monthly averagereport only (mg/L)all year009
Iron, total [as Fe]daily maximumreport only (mg/L)all year009
Zinc, total recoverablemonthly averagereport only (mg/L)all year009
Zinc, total recoverabledaily maximumreport only (mg/L)all year009
Copper, total recoverablemonthly averagereport only (mg/L)all year009
Copper, total recoverabledaily maximumreport only (mg/L)all year009
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year009
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year011
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year011
pHinstantaneous minimumreport only (SU)all year011
pHinstantaneous maximumreport only (SU)all year011
Solids, total suspendedmonthly averagereport only (mg/L)all year011
Solids, total suspendeddaily maximumreport only (mg/L)all year011
Cyanide, free [amenable to chlorination]monthly averagereport only (mg/L)all year011
Cyanide, free [amenable to chlorination]daily maximumreport only (mg/L)all year011
Iron, total [as Fe]monthly averagereport only (mg/L)all year011
Iron, total [as Fe]daily maximumreport only (mg/L)all year011
Zinc, total recoverablemonthly averagereport only (mg/L)all year011
Zinc, total recoverabledaily maximumreport only (mg/L)all year011
Copper, total recoverablemonthly averagereport only (mg/L)all year011
Copper, total recoverabledaily maximumreport only (mg/L)all year011
Di-n-butyl phthalatemonthly averagereport only (mg/L)all year011
Di-n-butyl phthalatedaily maximumreport only (mg/L)all year011
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year011
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year011
Chemical Oxygen Demand [COD]monthly averagereport only (mg/L)all year011
Chemical Oxygen Demand [COD]daily maximumreport only (mg/L)all year011
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
Iron, total [as Fe]monthly averagereport only (mg/L)all year012
Iron, total [as Fe]daily maximumreport only (mg/L)all year012
Zinc, total recoverablemonthly averagereport only (mg/L)all year012
Zinc, total recoverabledaily maximumreport only (mg/L)all year012
Copper, total recoverablemonthly averagereport only (mg/L)all year012
Copper, total recoverabledaily maximumreport only (mg/L)all 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
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
Iron, total [as Fe]monthly averagereport only (mg/L)all year013
Iron, total [as Fe]daily maximum≤ 1.5 mg/Lall year013
Zinc, total recoverablemonthly averagereport only (mg/L)all year013
Zinc, total recoverabledaily maximumreport only (mg/L)all year013
Copper, total recoverablemonthly averagereport only (mg/L)all year013
Copper, 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
pHinstantaneous minimumreport only (SU)all year014
pHinstantaneous maximumreport only (SU)all year014
Solids, total suspendedmonthly averagereport only (mg/L)all year014
Solids, total suspendeddaily maximumreport only (mg/L)all year014
Iron, total [as Fe]monthly averagereport only (mg/L)all year014
Iron, total [as Fe]daily maximum≤ 1.5 mg/Lall year014
Zinc, total recoverablemonthly averagereport only (mg/L)all year014
Zinc, total recoverabledaily maximumreport only (mg/L)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
pHinstantaneous minimumreport only (SU)all year015
pHinstantaneous maximumreport only (SU)all year015
Solids, total suspendedmonthly averagereport only (mg/L)all year015
Solids, total suspendeddaily maximumreport only (mg/L)all year015
Iron, total [as Fe]monthly averagereport only (mg/L)all year015
Iron, total [as Fe]daily maximumreport only (mg/L)all year015
Zinc, total recoverablemonthly averagereport only (mg/L)all year015
Zinc, total recoverabledaily maximumreport only (mg/L)all year015
Copper, total recoverablemonthly averagereport only (mg/L)all year015
Copper, total recoverabledaily maximumreport only (mg/L)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
pHinstantaneous minimumreport only (SU)all year016
pHinstantaneous maximumreport only (SU)all year016
Solids, total suspendedmonthly averagereport only (mg/L)all year016
Solids, total suspendeddaily maximumreport only (mg/L)all year016
Iron, total [as Fe]monthly averagereport only (mg/L)all year016
Iron, total [as Fe]daily maximumreport only (mg/L)all year016
Zinc, total recoverablemonthly averagereport only (mg/L)all year016
Zinc, total recoverabledaily maximumreport only (mg/L)all year016
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year016
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year016
pHinstantaneous minimumreport only (SU)all year018
pHinstantaneous maximumreport only (SU)all year018
Solids, total suspendedmonthly averagereport only (mg/L)all year018
Solids, total suspendeddaily maximumreport only (mg/L)all year018
Iron, total [as Fe]monthly averagereport only (mg/L)all year018
Iron, total [as Fe]daily maximum≤ 1.5 mg/Lall year018
Zinc, total recoverablemonthly averagereport only (mg/L)all year018
Zinc, total recoverabledaily maximumreport only (mg/L)all year018
Copper, total recoverablemonthly averagereport only (mg/L)all year018
Copper, total recoverabledaily maximumreport only (mg/L)all year018
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year018
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year018

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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