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PPG Industries Ohio Inc

Plastics Materials And Resins, major discharger, Circleville, Ohio. NPDES permit OH0004251 expired Apr 30, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (24 values), outfall 601 form A monthly (240 values), outfall 609 form A monthly (4 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 56 reports late

Limits in force (284)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 57 kg/dall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 114 kg/dall year001
Oxygen demand, chem. [low level] [COD]monthly average≤ 341 kg/dall year001
Oxygen demand, chem. [low level] [COD]daily maximum≤ 682 kg/dall year001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 12 mg/Lall year001
Solids, total suspendeddaily maximum≤ 18 mg/Lall year001
Solids, total suspendedmonthly average≤ 75.9 kg/dall year001
Solids, total suspendeddaily maximum≤ 114 kg/dall year001
Chloride [as Cl]monthly averagereport only (mg/L)all year001
Chloride [as Cl]daily maximumreport only (mg/L)all year001
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year001
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year001
Barium, total recoverablemonthly averagereport only (ug/L)all year001
Barium, total recoverabledaily maximumreport only (ug/L)all year001
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFweekly geometric mean≤ 284 MPN/100mLMay–Oct001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Mercury, total low levelmonthly average≤ 12 ng/LMar, Jun, Aug, Dec001
Mercury, total low leveldaily maximum≤ 1700 ng/LMar, Jun, Aug, Dec001
Mercury, total low levelmonthly average≤ .000076 kg/dMar, Jun, Aug, Dec001
Mercury, total low leveldaily maximum≤ .0108 kg/dMar, Jun, Aug, Dec001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)Mar, Jun, Aug, Dec001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)Mar, Jun, Aug, Dec001
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 35.6 mg/Lall year601
BOD, 5-day, 20 deg. Cdaily maximum≤ 88.3 mg/Lall year601
BOD, 5-day, 20 deg. Cmonthly average≤ 3.26 kg/dall year601
BOD, 5-day, 20 deg. Cdaily maximum≤ 7.84 kg/dall year601
pHdaily minimum≥ 6 SUall year601
pHdaily maximum≤ 9 SUall year601
Solids, total suspendedmonthly average≤ 45.7 mg/Lall year601
Solids, total suspendeddaily maximum≤ 138 mg/Lall year601
Solids, total suspendedmonthly average≤ 3.81 kg/dall year601
Solids, total suspendeddaily maximum≤ 11.1 kg/dall year601
Cyanide, total [as CN]monthly average≤ .299 mg/LSep601
Cyanide, total [as CN]daily maximum≤ .854 mg/LSep601
Cyanide, total [as CN]monthly average≤ .0233 kg/dSep601
Cyanide, total [as CN]daily maximum≤ .0665 kg/dSep601
Carbon tetrachloridemonthly average≤ 13 ug/LSep601
Carbon tetrachloridedaily maximum≤ 27 ug/LSep601
Carbon tetrachloridemonthly average≤ .00102 kg/dSep601
Carbon tetrachloridedaily maximum≤ .00211 kg/dSep601
1,2-Dichloroethanemonthly average≤ 48 ug/LSep601
1,2-Dichloroethanedaily maximum≤ 150 ug/LSep601
1,2-Dichloroethanemonthly average≤ .00374 kg/dSep601
1,2-Dichloroethanedaily maximum≤ .0117 kg/dSep601
Chloroformmonthly average≤ 15 ug/LSep601
Chloroformdaily maximum≤ 33 ug/LSep601
Chloroformmonthly average≤ .00117 kg/dSep601
Chloroformdaily maximum≤ .00257 kg/dSep601
Toluenemonthly average≤ 19 ug/LSep601
Toluenedaily maximum≤ 57 ug/LSep601
Toluenemonthly average≤ .00148 kg/dSep601
Toluenedaily maximum≤ .00444 kg/dSep601
Benzenemonthly average≤ 26 ug/LSep601
Benzenedaily maximum≤ 97 ug/LSep601
Benzenemonthly average≤ .00203 kg/dSep601
Benzenedaily maximum≤ .00755 kg/dSep601
Acenaphthylenemonthly average≤ 16 ug/LSep601
Acenaphthylenedaily maximum≤ 42 ug/LSep601
Acenaphthylenemonthly average≤ .00125 kg/dSep601
Acenaphthylenedaily maximum≤ .00327 kg/dSep601
Acenaphthenemonthly average≤ 16 ug/LSep601
Acenaphthenedaily maximum≤ 42 ug/LSep601
Acenaphthenemonthly average≤ .00125 kg/dSep601
Acenaphthenedaily maximum≤ .00327 kg/dSep601
Acrylonitrilemonthly average≤ 68 ug/LSep601
Acrylonitriledaily maximum≤ 172 ug/LSep601
Acrylonitrilemonthly average≤ .00529 kg/dSep601
Acrylonitriledaily maximum≤ .0134 kg/dSep601
Anthracenemonthly average≤ 2 ug/LSep601
Anthracenedaily maximum≤ 18 ug/LSep601
Anthracenemonthly average≤ .000201 kg/dSep601
Anthracenedaily maximum≤ .00181 kg/dSep601
Benzo[b]fluoranthenemonthly average≤ 16 ug/LSep601
Benzo[b]fluoranthenedaily maximum≤ 43 ug/LSep601
Benzo[b]fluoranthenemonthly average≤ .00125 kg/dSep601
Benzo[b]fluoranthenedaily maximum≤ .00335 kg/dSep601
Benzo[k]fluoranthenemonthly average≤ 14 ug/LSep601
Benzo[k]fluoranthenedaily maximum≤ 38 ug/LSep601
Benzo[k]fluoranthenemonthly average≤ .00109 kg/dSep601
Benzo[k]fluoranthenedaily maximum≤ .00296 kg/dSep601
Benzo[a]pyrenemonthly average≤ 16 ug/LSep601
Benzo[a]pyrenedaily maximum≤ 42 ug/LSep601
Benzo[a]pyrenemonthly average≤ .00125 kg/dSep601
Benzo[a]pyrenedaily maximum≤ .00327 kg/dSep601
Chlorobenzenemonthly average≤ 11 ug/LSep601
Chlorobenzenedaily maximum≤ 20 ug/LSep601
Chlorobenzenemonthly average≤ .000856 kg/dSep601
Chlorobenzenedaily maximum≤ .00156 kg/dSep601
Chrysenemonthly average≤ 16 ug/LSep601
Chrysenedaily maximum≤ 42 ug/LSep601
Chrysenemonthly average≤ .00125 kg/dSep601
Chrysenedaily maximum≤ .00327 kg/dSep601
Diethyl phthalatemonthly average≤ 58 ug/LSep601
Diethyl phthalatedaily maximum≤ 145 ug/LSep601
Diethyl phthalatemonthly average≤ .00452 kg/dSep601
Diethyl phthalatedaily maximum≤ .0113 kg/dSep601
Dimethyl phthalatemonthly average≤ 13 ug/LSep601
Dimethyl phthalatedaily maximum≤ 33 ug/LSep601
Dimethyl phthalatemonthly average≤ .00102 kg/dSep601
Dimethyl phthalatedaily maximum≤ .00257 kg/dSep601
Ethylbenzenemonthly average≤ 23 ug/LSep601
Ethylbenzenedaily maximum≤ 77 ug/LSep601
Ethylbenzenemonthly average≤ .00179 kg/dSep601
Ethylbenzenedaily maximum≤ .00599 kg/dSep601
Fluoranthenemonthly average≤ 18 ug/LSep601
Fluoranthenedaily maximum≤ 48 ug/LSep601
Fluoranthenemonthly average≤ .00141 kg/dSep601
Fluoranthenedaily maximum≤ .00374 kg/dSep601
Fluorenemonthly average≤ 16 ug/LSep601
Fluorenedaily maximum≤ 42 ug/LSep601
Fluorenemonthly average≤ .00125 kg/dSep601
Fluorenedaily maximum≤ .00327 kg/dSep601
Hexachloroethanemonthly average≤ 15 ug/LSep601
Hexachloroethanedaily maximum≤ 38 ug/LSep601
Hexachloroethanemonthly average≤ .00117 kg/dSep601
Hexachloroethanedaily maximum≤ .00296 kg/dSep601
Methyl chloride [Chloromethane]monthly average≤ 61 ug/LSep601
Methyl chloride [Chloromethane]daily maximum≤ 135 ug/LSep601
Methyl chloride [Chloromethane]monthly average≤ .00475 kg/dSep601
Methyl chloride [Chloromethane]daily maximum≤ .0106 kg/dSep601
Methylene chloridemonthly average≤ 28 ug/LSep601
Methylene chloridedaily maximum≤ 63 ug/LSep601
Methylene chloridemonthly average≤ .00218 kg/dSep601
Methylene chloridedaily maximum≤ .00491 kg/dSep601
Nitrobenzenemonthly average≤ 19 ug/LSep601
Nitrobenzenedaily maximum≤ 48 ug/LSep601
Nitrobenzenemonthly average≤ .00148 kg/dSep601
Nitrobenzenedaily maximum≤ .00374 kg/dSep601
Phenanthrenemonthly average≤ 16 ug/LSep601
Phenanthrenedaily maximum≤ 42 ug/LSep601
Phenanthrenemonthly average≤ .00125 kg/dSep601
Phenanthrenedaily maximum≤ .00327 kg/dSep601
Pyrenemonthly average≤ 18 ug/LSep601
Pyrenedaily maximum≤ 48 ug/LSep601
Pyrenemonthly average≤ .00141 kg/dSep601
Pyrenedaily maximum≤ .00374 kg/dSep601
Tetrachloroethylenemonthly average≤ 16 ug/LSep601
Tetrachloroethylenedaily maximum≤ 40 ug/LSep601
Tetrachloroethylenemonthly average≤ .00125 kg/dSep601
Tetrachloroethylenedaily maximum≤ .00312 kg/dSep601
1,1-Dichloroethanemonthly average≤ 16 ug/LSep601
1,1-Dichloroethanedaily maximum≤ 42 ug/LSep601
1,1-Dichloroethanemonthly average≤ .00125 kg/dSep601
1,1-Dichloroethanedaily maximum≤ .00327 kg/dSep601
1,1-Dichloroethylenemonthly average≤ 11 ug/LSep601
1,1-Dichloroethylenedaily maximum≤ 18 ug/LSep601
1,1-Dichloroethylenemonthly average≤ .000856 kg/dSep601
1,1-Dichloroethylenedaily maximum≤ .00141 kg/dSep601
1,1,1-Trichloroethanemonthly average≤ 15 ug/LSep601
1,1,1-Trichloroethanedaily maximum≤ 38 ug/LSep601
1,1,1-Trichloroethanemonthly average≤ .00117 kg/dSep601
1,1,1-Trichloroethanedaily maximum≤ .00296 kg/dSep601
1,1,2-Trichloroethanemonthly average≤ 15 ug/LSep601
1,1,2-Trichloroethanedaily maximum≤ 38 ug/LSep601
1,1,2-Trichloroethanemonthly average≤ .00117 kg/dSep601
1,1,2-Trichloroethanedaily maximum≤ .00296 kg/dSep601
Benzo[a]anthracenemonthly average≤ 16 ug/LSep601
Benzo[a]anthracenedaily maximum≤ 42 ug/LSep601
Benzo[a]anthracenemonthly average≤ .00125 kg/dSep601
Benzo[a]anthracenedaily maximum≤ .00327 kg/dSep601
1,2-Dichlorobenzenemonthly average≤ 55 ug/LSep601
1,2-Dichlorobenzenedaily maximum≤ 116 ug/LSep601
1,2-Dichlorobenzenemonthly average≤ .00428 kg/dSep601
1,2-Dichlorobenzenedaily maximum≤ .00903 kg/dSep601
1,2-Dichloropropanemonthly average≤ 109 ug/LSep601
1,2-Dichloropropanedaily maximum≤ 164 ug/LSep601
1,2-Dichloropropanemonthly average≤ .00848 kg/dSep601
1,2-Dichloropropanedaily maximum≤ .0128 kg/dSep601
trans-1,2-Dichloroethylenemonthly average≤ 15 ug/LSep601
trans-1,2-Dichloroethylenedaily maximum≤ 38 ug/LSep601
trans-1,2-Dichloroethylenemonthly average≤ .00117 kg/dSep601
trans-1,2-Dichloroethylenedaily maximum≤ .00296 kg/dSep601
1,2,4-Trichlorobenzenemonthly average≤ 48 ug/LSep601
1,2,4-Trichlorobenzenedaily maximum≤ 100 ug/LSep601
1,2,4-Trichlorobenzenemonthly average≤ .00374 kg/dSep601
1,2,4-Trichlorobenzenedaily maximum≤ .00778 kg/dSep601
1,3-Dichlorobenzenemonthly average≤ 22 ug/LSep601
1,3-Dichlorobenzenedaily maximum≤ 31 ug/LSep601
1,3-Dichlorobenzenemonthly average≤ .00172 kg/dSep601
1,3-Dichlorobenzenedaily maximum≤ .00242 kg/dSep601
1,4-Dichlorobenzenemonthly average≤ 11 ug/LSep601
1,4-Dichlorobenzenedaily maximum≤ 20 ug/LSep601
1,4-Dichlorobenzenemonthly average≤ .000856 kg/dSep601
1,4-Dichlorobenzenedaily maximum≤ .00156 kg/dSep601
2-Chlorophenolmonthly average≤ 22 ug/LSep601
2-Chlorophenoldaily maximum≤ 70 ug/LSep601
2-Chlorophenolmonthly average≤ .00172 kg/dSep601
2-Chlorophenoldaily maximum≤ .00545 kg/dSep601
2-Nitrophenolmonthly average≤ 29 ug/LSep601
2-Nitrophenoldaily maximum≤ 49 ug/LSep601
2-Nitrophenolmonthly average≤ .00226 kg/dSep601
2-Nitrophenoldaily maximum≤ .00382 kg/dSep601
2,4-Dichlorophenolmonthly average≤ 28 ug/LSep601
2,4-Dichlorophenoldaily maximum≤ 80 ug/LSep601
2,4-Dichlorophenolmonthly average≤ .00218 kg/dSep601
2,4-Dichlorophenoldaily maximum≤ .00623 kg/dSep601
2,4-Dimethylphenolmonthly average≤ 13 ug/LSep601
2,4-Dimethylphenoldaily maximum≤ 27 ug/LSep601
2,4-Dimethylphenolmonthly average≤ .00102 kg/dSep601
2,4-Dimethylphenoldaily maximum≤ .00211 kg/dSep601
2,4-Dinitrotoluenemonthly average≤ 80 ug/LSep601
2,4-Dinitrotoluenedaily maximum≤ 203 ug/LSep601
2,4-Dinitrotoluenemonthly average≤ .00623 kg/dSep601
2,4-Dinitrotoluenedaily maximum≤ .0158 kg/dSep601
2,4-Dinitrophenolmonthly average≤ 51 ug/LSep601
2,4-Dinitrophenoldaily maximum≤ 88 ug/LSep601
2,4-Dinitrophenolmonthly average≤ .00397 kg/dSep601
2,4-Dinitrophenoldaily maximum≤ .00685 kg/dSep601
2,6-Dinitrotoluenemonthly average≤ 182 ug/LSep601
2,6-Dinitrotoluenedaily maximum≤ 456 ug/LSep601
2,6-Dinitrotoluenemonthly average≤ .0142 kg/dSep601
2,6-Dinitrotoluenedaily maximum≤ .0355 kg/dSep601
4-Nitrophenolmonthly average≤ 51 ug/LSep601
4-Nitrophenoldaily maximum≤ 88 ug/LSep601
4-Nitrophenolmonthly average≤ .00397 kg/dSep601
4-Nitrophenoldaily maximum≤ .00685 kg/dSep601
4,6-Dinitro-o-cresolmonthly average≤ 56 ug/LSep601
4,6-Dinitro-o-cresoldaily maximum≤ 197 ug/LSep601
4,6-Dinitro-o-cresolmonthly average≤ .00436 kg/dSep601
4,6-Dinitro-o-cresoldaily maximum≤ .0154 kg/dSep601
Phenolmonthly average≤ 11 ug/LSep601
Phenoldaily maximum≤ 19 ug/LSep601
Phenolmonthly average≤ .000856 kg/dSep601
Phenoldaily maximum≤ .00148 kg/dSep601
Naphthalenemonthly average≤ 16 ug/LSep601
Naphthalenedaily maximum≤ 42 ug/LSep601
Naphthalenemonthly average≤ .00125 kg/dSep601
Naphthalenedaily maximum≤ .00327 kg/dSep601
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 73 ug/LSep601
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 199 ug/LSep601
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .00568 kg/dSep601
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .0155 kg/dSep601
Di-n-butyl phthalatemonthly average≤ 19 ug/LSep601
Di-n-butyl phthalatedaily maximum≤ 41 ug/LSep601
Di-n-butyl phthalatemonthly average≤ .00148 kg/dSep601
Di-n-butyl phthalatedaily maximum≤ .00319 kg/dSep601
Vinyl chloridemonthly average≤ 74 ug/LSep601
Vinyl chloridedaily maximum≤ 191 ug/LSep601
Vinyl chloridemonthly average≤ .00576 kg/dSep601
Vinyl chloridedaily maximum≤ .0149 kg/dSep601
Trichloroethylenemonthly average≤ 15 ug/LSep601
Trichloroethylenedaily maximum≤ 38 ug/LSep601
Trichloroethylenemonthly average≤ .00117 kg/dSep601
Trichloroethylenedaily maximum≤ .00296 kg/dSep601
Hexachlorobenzenemonthly average≤ .77 ug/LSep601
Hexachlorobenzenedaily maximum≤ 20 ug/LSep601
Hexachlorobenzenemonthly average≤ .000856 kg/dSep601
Hexachlorobenzenedaily maximum≤ .00156 kg/dSep601
Hexachlorobutadienemonthly average≤ 14 ug/LSep601
Hexachlorobutadienedaily maximum≤ 35 ug/LSep601
Hexachlorobutadienemonthly average≤ .00109 kg/dSep601
Hexachlorobutadienedaily maximum≤ .00273 kg/dSep601
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year601
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year601
1,3-Dichloropropenemonthly average≤ 21 ug/LSep601
1,3-Dichloropropenedaily maximum≤ 31 ug/LSep601
1,3-Dichloropropenemonthly average≤ .00164 kg/dSep601
1,3-Dichloropropenedaily maximum≤ .00242 kg/dSep601
Chloroethanemonthly average≤ 74 ug/LSep601
Chloroethanedaily maximum≤ 191 ug/LSep601
Chloroethanemonthly average≤ .00576 kg/dSep601
Chloroethanedaily maximum≤ .0149 kg/dSep601
Carbon, total [as C]monthly averagereport only (mg/L)all year604
Carbon, total [as C]daily maximumreport only (mg/L)all year604
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year604
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year604
Oxygen demand, chem. [low level] [COD]monthly averagereport only (mg/L)all year609
Oxygen demand, chem. [low level] [COD]daily maximumreport only (mg/L)all year609
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year609
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year609
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)Mar, Jun, Aug, Dec801
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)Mar, Jun, Aug, Dec801
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)Mar, Jun, Aug, Dec902
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)Mar, Jun, Aug, Dec902

How strict are these limits?

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

Same industry: the 68 Chemicals and Allied Products permits in Ohio.

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