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Durez Corporation

Plastics Materials And Resins, major discharger, Kenton, Ohio. NPDES permit OH0006769, in force until Jan 31, 2029. Last 12 months: over a limit once (last December 2025), 4 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (259 values), outfall 602 form A monthly (6 values), outfall 801 form A monthly (4 values), outfall 901 form A monthly (2 values), outfall 902 form A monthly (2 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 13 of 27 reports late

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

Period endingParameterReportedLimitOver by
December 2025BOD, carbonaceous [5 day, 20 C], daily maximum53≤ 38 mg/L39%

Limits in force (286)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen, dissolved [DO]daily minimum≥ 7 mg/LMay–Oct001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
pHdaily minimum≥ 6.5 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 20.5 kg/dall year001
Solids, total suspendeddaily maximum≤ 30.7 kg/dall year001
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 8 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 12 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.25 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 5.46 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.03 kg/dMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 8.18 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 1.54 kg/dMay–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Strontium, total recoverable, ug/Lmonthly averagereport only (ug/L)Mar, Jun, Aug, Dec001
Strontium, total recoverable, ug/Ldaily maximumreport only (ug/L)Mar, Jun, Aug, Dec001
Chromium, total recoverablemonthly averagereport only (ug/L)all year001
Chromium, total recoverabledaily maximumreport only (ug/L)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 MPN/100mLMay–Oct001
E. coli, MTEC-MFdaily maximum≤ 284 MPN/100mLMay–Oct001
Carbon tetrachloridemonthly average≤ 14 ug/LSep001
Carbon tetrachloridedaily maximum≤ 29 ug/LSep001
Carbon tetrachloridemonthly average≤ .008 kg/dSep001
Carbon tetrachloridedaily maximum≤ .016 kg/dSep001
1,2-Dichloroethanemonthly average≤ 52 ug/LSep001
1,2-Dichloroethanedaily maximum≤ 162 ug/LSep001
1,2-Dichloroethanemonthly average≤ .029 kg/dSep001
1,2-Dichloroethanedaily maximum≤ .092 kg/dSep001
Chloroformmonthly average≤ 16 ug/LSep001
Chloroformdaily maximum≤ 35 ug/LSep001
Chloroformmonthly average≤ .009 kg/dSep001
Chloroformdaily maximum≤ .02 kg/dSep001
Toluenemonthly average≤ 18 ug/LSep001
Toluenedaily maximum≤ 49 ug/LSep001
Toluenemonthly average≤ .01 kg/dSep001
Toluenedaily maximum≤ .027 kg/dSep001
Benzenemonthly average≤ 28 ug/LSep001
Benzenedaily maximum≤ 105 ug/LSep001
Benzenemonthly average≤ .016 kg/dSep001
Benzenedaily maximum≤ .059 kg/dSep001
Oxidants, total residualdaily maximum≤ .0043 mg/Lall year001
Acenaphthylenemonthly average≤ 17 ug/LSep001
Acenaphthylenedaily maximum≤ 45 ug/LSep001
Acenaphthylenemonthly average≤ .009 kg/dSep001
Acenaphthylenedaily maximum≤ .025 kg/dSep001
Acenaphthenemonthly average≤ 17 ug/LSep001
Acenaphthenedaily maximum≤ 38 ug/LSep001
Acenaphthenemonthly average≤ .009 kg/dSep001
Acenaphthenedaily maximum≤ .022 kg/dSep001
Acrylonitrilemonthly average≤ 74 ug/LSep001
Acrylonitriledaily maximum≤ 186 ug/LSep001
Acrylonitrilemonthly average≤ .042 kg/dSep001
Acrylonitriledaily maximum≤ .105 kg/dSep001
Anthracenemonthly average≤ .034 ug/LSep001
Anthracenedaily maximum≤ .35 ug/LSep001
Anthracenemonthly average≤ .00002 kg/dSep001
Anthracenedaily maximum≤ .0002 kg/dSep001
Benzo[b]fluoranthenemonthly average≤ 2.8 ug/LSep001
Benzo[b]fluoranthenedaily maximum≤ 47 ug/LSep001
Benzo[b]fluoranthenemonthly average≤ .002 kg/dSep001
Benzo[b]fluoranthenedaily maximum≤ .027 kg/dSep001
Benzo[k]fluoranthenemonthly average≤ 2.8 ug/LSep001
Benzo[k]fluoranthenedaily maximum≤ 45 ug/LSep001
Benzo[k]fluoranthenemonthly average≤ .002 kg/dSep001
Benzo[k]fluoranthenedaily maximum≤ .025 kg/dSep001
Benzo[a]pyrenemonthly average≤ 20 ug/LSep001
Benzo[a]pyrenedaily maximum≤ 52 ug/LSep001
Benzo[a]pyrenemonthly average≤ .012 kg/dSep001
Benzo[a]pyrenedaily maximum≤ .031 kg/dSep001
Chlorobenzenemonthly average≤ 12 ug/LSep001
Chlorobenzenedaily maximum≤ 22 ug/LSep001
Chlorobenzenemonthly average≤ .012 kg/dSep001
Chlorobenzenedaily maximum≤ .012 kg/dSep001
Chrysenemonthly average≤ 2.8 ug/LSep001
Chrysenedaily maximum≤ 45 ug/LSep001
Chrysenemonthly average≤ .002 kg/dSep001
Chrysenedaily maximum≤ .025 kg/dSep001
Diethyl phthalatemonthly average≤ 62 ug/LSep001
Diethyl phthalatedaily maximum≤ 156 ug/LSep001
Diethyl phthalatemonthly average≤ .035 kg/dSep001
Diethyl phthalatedaily maximum≤ .088 kg/dSep001
Dimethyl phthalatemonthly average≤ 15 ug/LSep001
Dimethyl phthalatedaily maximum≤ 36 ug/LSep001
Dimethyl phthalatemonthly average≤ .008 kg/dSep001
Dimethyl phthalatedaily maximum≤ .02 kg/dSep001
Ethylbenzenemonthly average≤ 25 ug/LSep001
Ethylbenzenedaily maximum≤ 83 ug/LSep001
Ethylbenzenemonthly average≤ .014 kg/dSep001
Ethylbenzenedaily maximum≤ .047 kg/dSep001
Fluoranthenemonthly average≤ 1.4 ug/LSep001
Fluoranthenedaily maximum≤ 7.4 ug/LSep001
Fluoranthenemonthly average≤ .0008 kg/dSep001
Fluoranthenedaily maximum≤ .004 kg/dSep001
Fluorenemonthly average≤ 17 ug/LSep001
Fluorenedaily maximum≤ 45 ug/LSep001
Fluorenemonthly average≤ .009 kg/dSep001
Fluorenedaily maximum≤ .025 kg/dSep001
Hexachloroethanemonthly average≤ 16 ug/LSep001
Hexachloroethanedaily maximum≤ 42 ug/LSep001
Hexachloroethanemonthly average≤ .009 kg/dSep001
Hexachloroethanedaily maximum≤ .023 kg/dSep001
Methyl chloride [Chloromethane]monthly average≤ 66 ug/LSep001
Methyl chloride [Chloromethane]daily maximum≤ 146 ug/LSep001
Methyl chloride [Chloromethane]monthly average≤ .037 kg/dSep001
Methyl chloride [Chloromethane]daily maximum≤ .083 kg/dSep001
Methylene chloridemonthly average≤ 31 ug/LSep001
Methylene chloridedaily maximum≤ 69 ug/LSep001
Methylene chloridemonthly average≤ .017 kg/dSep001
Methylene chloridedaily maximum≤ .039 kg/dSep001
Nitrobenzenemonthly average≤ 21 ug/LSep001
Nitrobenzenedaily maximum≤ 52 ug/LSep001
Nitrobenzenemonthly average≤ .012 kg/dSep001
Nitrobenzenedaily maximum≤ .029 kg/dSep001
Phenanthrenemonthly average≤ 3.9 ug/LSep001
Phenanthrenedaily maximum≤ 45 ug/LSep001
Phenanthrenemonthly average≤ .003 kg/dSep001
Phenanthrenedaily maximum≤ .028 kg/dSep001
Pyrenemonthly average≤ 7.9 ug/LSep001
Pyrenedaily maximum≤ 49 ug/LSep001
Pyrenemonthly average≤ .005 kg/dSep001
Pyrenedaily maximum≤ .027 kg/dSep001
Tetrachloroethylenemonthly average≤ 17 ug/LSep001
Tetrachloroethylenedaily maximum≤ 43 ug/LSep001
Tetrachloroethylenemonthly average≤ .009 kg/dSep001
Tetrachloroethylenedaily maximum≤ .024 kg/dSep001
1,1-Dichloroethanemonthly average≤ 17 ug/LSep001
1,1-Dichloroethanedaily maximum≤ 45 ug/LSep001
1,1-Dichloroethanemonthly average≤ .009 kg/dSep001
1,1-Dichloroethanedaily maximum≤ .025 kg/dSep001
1,1-Dichloroethylenemonthly average≤ 12 ug/LSep001
1,1-Dichloroethylenedaily maximum≤ 19 ug/LSep001
1,1-Dichloroethylenemonthly average≤ .007 kg/dSep001
1,1-Dichloroethylenedaily maximum≤ .01 kg/dSep001
1,1,1-Trichloroethanemonthly average≤ 16 ug/LSep001
1,1,1-Trichloroethanedaily maximum≤ 42 ug/LSep001
1,1,1-Trichloroethanemonthly average≤ .009 kg/dSep001
1,1,1-Trichloroethanedaily maximum≤ .023 kg/dSep001
1,1,2-Trichloroethanemonthly average≤ 16 ug/LSep001
1,1,2-Trichloroethanedaily maximum≤ 42 ug/LSep001
1,1,2-Trichloroethanemonthly average≤ .009 kg/dSep001
1,1,2-Trichloroethanedaily maximum≤ .023 kg/dSep001
Benzo[a]anthracenemonthly average≤ 2.8 ug/LSep001
Benzo[a]anthracenedaily maximum≤ 45 ug/LSep001
Benzo[a]anthracenemonthly average≤ .002 kg/dSep001
Benzo[a]anthracenedaily maximum≤ .025 kg/dSep001
1,2-Dichlorobenzenemonthly average≤ 30 ug/LSep001
1,2-Dichlorobenzenedaily maximum≤ 125 ug/LSep001
1,2-Dichlorobenzenemonthly average≤ .017 kg/dSep001
1,2-Dichlorobenzenedaily maximum≤ .071 kg/dSep001
1,2-Dichloropropanemonthly average≤ 132 ug/LSep001
1,2-Dichloropropanedaily maximum≤ 198 ug/LSep001
1,2-Dichloropropanemonthly average≤ .077 kg/dSep001
1,2-Dichloropropanedaily maximum≤ .116 kg/dSep001
trans-1,2-Dichloroethylenemonthly average≤ 16 ug/LSep001
trans-1,2-Dichloroethylenedaily maximum≤ 42 ug/LSep001
trans-1,2-Dichloroethylenemonthly average≤ .009 kg/dSep001
trans-1,2-Dichloroethylenedaily maximum≤ .025 kg/dSep001
1,2,4-Trichlorobenzenemonthly average≤ 52 ug/LSep001
1,2,4-Trichlorobenzenedaily maximum≤ 108 ug/LSep001
1,2,4-Trichlorobenzenemonthly average≤ .029 kg/dSep001
1,2,4-Trichlorobenzenedaily maximum≤ .061 kg/dSep001
1,3-Dichlorobenzenemonthly average≤ 24 ug/LSep001
1,3-Dichlorobenzenedaily maximum≤ 34 ug/LSep001
1,3-Dichlorobenzenemonthly average≤ .013 kg/dSep001
1,3-Dichlorobenzenedaily maximum≤ .019 kg/dSep001
1,4-Dichlorobenzenemonthly average≤ 12 ug/LSep001
1,4-Dichlorobenzenedaily maximum≤ 22 ug/LSep001
1,4-Dichlorobenzenemonthly average≤ .007 kg/dSep001
1,4-Dichlorobenzenedaily maximum≤ .012 kg/dSep001
2-Chlorophenolmonthly average≤ 24 ug/LSep001
2-Chlorophenoldaily maximum≤ 75 ug/LSep001
2-Chlorophenolmonthly average≤ .014 kg/dSep001
2-Chlorophenoldaily maximum≤ .042 kg/dSep001
2-Nitrophenolmonthly average≤ 32 ug/LSep001
2-Nitrophenoldaily maximum≤ 53 ug/LSep001
2-Nitrophenolmonthly average≤ .018 kg/dSep001
2-Nitrophenoldaily maximum≤ .03 kg/dSep001
2,4-Dichlorophenolmonthly average≤ 19 ug/LSep001
2,4-Dichlorophenoldaily maximum≤ 86 ug/LSep001
2,4-Dichlorophenolmonthly average≤ .011 kg/dSep001
2,4-Dichlorophenoldaily maximum≤ .048 kg/dSep001
2,4-Dimethylphenolmonthly average≤ 14 ug/LSep001
2,4-Dimethylphenoldaily maximum≤ 28 ug/LSep001
2,4-Dimethylphenolmonthly average≤ .008 kg/dSep001
2,4-Dimethylphenoldaily maximum≤ .016 kg/dSep001
2,4-Dinitrotoluenemonthly average≤ 75 ug/LSep001
2,4-Dinitrotoluenedaily maximum≤ 219 ug/LSep001
2,4-Dinitrotoluenemonthly average≤ .049 kg/dSep001
2,4-Dinitrotoluenedaily maximum≤ .124 kg/dSep001
2,4-Dinitrophenolmonthly average≤ 55 ug/LSep001
2,4-Dinitrophenoldaily maximum≤ 95 ug/LSep001
2,4-Dinitrophenolmonthly average≤ .031 kg/dSep001
2,4-Dinitrophenoldaily maximum≤ .054 kg/dSep001
2,6-Dinitrotoluenemonthly average≤ 120 ug/LSep001
2,6-Dinitrotoluenedaily maximum≤ 493 ug/LSep001
2,6-Dinitrotoluenemonthly average≤ .068 kg/dSep001
2,6-Dinitrotoluenedaily maximum≤ .279 kg/dSep001
4-Nitrophenolmonthly average≤ 55 ug/LSep001
4-Nitrophenoldaily maximum≤ 95 ug/LSep001
4-Nitrophenolmonthly average≤ .031 kg/dSep001
4-Nitrophenoldaily maximum≤ .054 kg/dSep001
4,6-Dinitro-o-cresolmonthly average≤ 60 ug/LSep001
4,6-Dinitro-o-cresoldaily maximum≤ 213 ug/LSep001
4,6-Dinitro-o-cresolmonthly average≤ .034 kg/dSep001
4,6-Dinitro-o-cresoldaily maximum≤ .121 kg/dSep001
Phenolmonthly average≤ 12 ug/LSep001
Phenoldaily maximum≤ 20 ug/LSep001
Phenolmonthly average≤ .007 kg/dSep001
Phenoldaily maximum≤ .011 kg/dSep001
Naphthalenemonthly average≤ 17 ug/LSep001
Naphthalenedaily maximum≤ 45 ug/LSep001
Naphthalenemonthly average≤ .009 kg/dSep001
Naphthalenedaily maximum≤ .025 kg/dSep001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ 13 ug/LSep001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ 215 ug/LSep001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .008 kg/dSep001
Di[2-ethylhexyl] phthalate [DEHP]daily maximum≤ .121 kg/dSep001
Di-n-butyl phthalatemonthly average≤ 21 ug/LSep001
Di-n-butyl phthalatedaily maximum≤ 44 ug/LSep001
Di-n-butyl phthalatemonthly average≤ .012 kg/dSep001
Di-n-butyl phthalatedaily maximum≤ .024 kg/dSep001
Vinyl chloridemonthly average≤ 80 ug/LSep001
Vinyl chloridedaily maximum≤ 206 ug/LSep001
Vinyl chloridemonthly average≤ .045 kg/dSep001
Vinyl chloridedaily maximum≤ .117 kg/dSep001
Trichloroethylenemonthly average≤ 16 ug/LSep001
Trichloroethylenedaily maximum≤ 42 ug/LSep001
Trichloroethylenemonthly average≤ .009 kg/dSep001
Trichloroethylenedaily maximum≤ .023 kg/dSep001
Hexachlorobenzenemonthly average≤ 12 ug/LSep001
Hexachlorobenzenedaily maximum≤ 22 ug/LSep001
Hexachlorobenzenemonthly average≤ .007 kg/dSep001
Hexachlorobenzenedaily maximum≤ .012 kg/dSep001
Hexachlorobutadienemonthly average≤ 15 ug/LSep001
Hexachlorobutadienedaily maximum≤ 38 ug/LSep001
Hexachlorobutadienemonthly average≤ .008 kg/dSep001
Hexachlorobutadienedaily maximum≤ .021 kg/dSep001
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 averagereport only (ng/L)Mar, Jun, Aug, Dec001
Mercury, total low leveldaily maximumreport only (ng/L)Mar, Jun, Aug, Dec001
Cyanide, free availablemonthly averagereport only (ug/L)all year001
Cyanide, free availabledaily maximumreport only (ug/L)all year001
Toxicity [acute], Ceriodaphnia dubiamonthly averagereport only (tox acute)Sep001
Toxicity [acute], Ceriodaphnia dubiadaily maximumreport only (tox acute)Sep001
Toxicity [chronic], Ceriodaphnia dubiamonthly averagereport only (tox chronic)Sep001
Toxicity [chronic], Ceriodaphnia dubiadaily maximumreport only (tox chronic)Sep001
Solids, total dissolved- 180 deg. Cmonthly averagereport only (mg/L)all year001
Solids, total dissolved- 180 deg. Cdaily maximumreport only (mg/L)all year001
1,3-Dichloropropenemonthly average≤ 2.9 ug/LSep001
1,3-Dichloropropenedaily maximum≤ 30 ug/LSep001
1,3-Dichloropropenemonthly average≤ .00198 kg/dSep001
1,3-Dichloropropenedaily maximum≤ .0205 kg/dSep001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 38 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 6.82 kg/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 17.1 kg/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 10.3 kg/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25.9 kg/dJan, Feb, Mar, Apr, Nov, Dec001
Chloroethanemonthly average≤ 80 ug/LSep001
Chloroethanedaily maximum≤ 206 ug/LSep001
Chloroethanemonthly average≤ .045 kg/dSep001
Chloroethanedaily maximum≤ .117 kg/dSep001
Zinc, total recoverablemonthly averagereport only (ug/L)all year602
Zinc, total recoverabledaily maximumreport only (ug/L)all year602
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year602
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year602
Formaldehydemonthly averagereport only (mg/L)all year602
Formaldehydedaily maximumreport only (mg/L)all year602
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiamonthly averagereport only (%)Sep801
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)Sep801
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)Sep801
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)Sep801
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiamonthly averagereport only (%)Sep901
%Effect Static Renewal 48Hr Acute Ceriodaphnia dubiadaily maximumreport only (%)Sep901
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly averagereport only (%)Sep902
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximumreport only (%)Sep902

New limits from Feb 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Cyanide, free available, daily maximum0.046 kg/dnew——
Cyanide, free available, daily maximum67 ug/Lnew——
Cyanide, free available, monthly average0.013 kg/dnew——
Cyanide, free available, monthly average19 ug/Lnew——

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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