Americas Styrenics LLC - Hanging Rock

NPDES permit OH0099309 · Major NON-POTW · effective, expires 2027-08-31 · EPA's file as of 2026-09-19

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Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 22 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (291)

OutfallParameterStatisticLimitMonths
002BOD, 5-day, 20 deg. CMO AVG report only all year
002BOD, 5-day, 20 deg. CDAILY MX report only all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
002Carbon, tot organic [TOC]MO AVG report only all year
002Carbon, tot organic [TOC]DAILY MX report only all year
002Zinc, total recoverableMO AVG report only all year
002Zinc, total recoverableDAILY MX report only all year
002Oxidants, total residualDAILY MX <= .0024 mg/L all year
002RainfallMO AVG report only all year
002RainfallDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Chlorine, total residualDAILY MX <= .038 mg/L all year
002Mercury, total low levelMO AVG report only Mar, Jun, Aug, Dec
002Mercury, total low levelDAILY MX report only Mar, Jun, Aug, Dec
002pH, maximumDAILY MX <= 9 SU all year
002pH, minimumDAILY MN >= 6.5 SU all year
002StyreneMO AVG report only all year
002StyreneDAILY MX report only all year
601BOD, 5-day, 20 deg. CMO AVG <= 24 mg/L all year
601BOD, 5-day, 20 deg. CDAILY MX <= 61 mg/L all year
601BOD, 5-day, 20 deg. CMO AVG <= 1.0853 kg/d all year
601BOD, 5-day, 20 deg. CDAILY MX <= 2.648 kg/d all year
601Solids, total suspendedMO AVG <= 38 mg/L all year
601Solids, total suspendedDAILY MX <= 115 mg/L all year
601Solids, total suspendedMO AVG <= 1.6494 kg/d all year
601Solids, total suspendedDAILY MX <= 4.993 kg/d all year
601Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
601Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
601Oil and grease [soxhlet extr.] tot.MO AVG <= .6512 kg/d all year
601Oil and grease [soxhlet extr.] tot.DAILY MX <= .8683 kg/d all year
601Carbon, tot organic [TOC]MO AVG report only all year
601Carbon, tot organic [TOC]DAILY MX report only all year
601Cyanide, total [as CN]MO AVG <= .39 mg/L all year
601Cyanide, total [as CN]DAILY MX <= 1.2 mg/L all year
601Cyanide, total [as CN]MO AVG <= .0169 kg/d all year
601Cyanide, total [as CN]DAILY MX <= .0521 kg/d all year
601Chromium, total [as Cr]MO AVG <= 1110 ug/L all year
601Chromium, total [as Cr]DAILY MX <= 2770 ug/L all year
601Chromium, total [as Cr]MO AVG <= .0482 kg/d all year
601Chromium, total [as Cr]DAILY MX <= .1203 kg/d all year
601Copper, total [as Cu]DAILY MX <= 390 ug/L all year
601Copper, total [as Cu]DAILY MX <= .0169 kg/d all year
601Lead, total [as Pb]MO AVG <= 320 ug/L all year
601Lead, total [as Pb]DAILY MX <= 690 ug/L all year
601Lead, total [as Pb]MO AVG <= .0139 kg/d all year
601Lead, total [as Pb]DAILY MX <= .02996 kg/d all year
601Nickel, total [as Ni]MO AVG <= 1690 ug/L all year
601Nickel, total [as Ni]DAILY MX <= 3980 ug/L all year
601Nickel, total [as Ni]MO AVG <= .0734 kg/d all year
601Nickel, total [as Ni]DAILY MX <= .1728 kg/d all year
601Zinc, total [as Zn]MO AVG <= 1050 ug/L all year
601Zinc, total [as Zn]DAILY MX <= 2610 ug/L all year
601Zinc, total [as Zn]MO AVG <= .0456 kg/d all year
601Zinc, total [as Zn]DAILY MX <= .1133 kg/d all year
601Coliform, fecal MF, MFC broth, 44.5 CMO GEOMN <= 1000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
601Coliform, fecal MF, MFC broth, 44.5 CWK GEOMN <= 2000 #/100mL Jan, Feb, Mar, Apr, Nov, Dec
601E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
601E. coli, MTEC-MFWK GEOMN <= 240 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
601Carbon tetrachlorideMO AVG <= 18 ug/L Sep
601Carbon tetrachlorideDAILY MX <= 38 ug/L Sep
601Carbon tetrachlorideMO AVG <= .0008 kg/d Sep
601Carbon tetrachlorideDAILY MX <= .0016 kg/d Sep
6011,2-DichloroethaneMO AVG <= 68 ug/L Sep
6011,2-DichloroethaneDAILY MX <= 211 ug/L Sep
6011,2-DichloroethaneMO AVG <= .003 kg/d Sep
6011,2-DichloroethaneDAILY MX <= .0092 kg/d Sep
601ChloroformMO AVG <= 21 ug/L Sep
601ChloroformDAILY MX <= 46 ug/L Sep
601ChloroformMO AVG <= .0009 kg/d Sep
601ChloroformDAILY MX <= .002 kg/d Sep
601TolueneMO AVG <= 26 ug/L Sep
601TolueneDAILY MX <= 80 ug/L Sep
601TolueneMO AVG <= .00113 kg/d Sep
601TolueneDAILY MX <= .0035 kg/d Sep
601BenzeneMO AVG <= 37 ug/L Sep
601BenzeneDAILY MX <= 136 ug/L Sep
601BenzeneMO AVG <= .0016 kg/d Sep
601BenzeneDAILY MX <= .0059 kg/d Sep
601AcenaphthyleneMO AVG <= 22 ug/L Sep
601AcenaphthyleneDAILY MX <= 59 ug/L Sep
601AcenaphthyleneMO AVG <= .00096 kg/d Sep
601AcenaphthyleneDAILY MX <= .0026 kg/d Sep
601AcenaphtheneMO AVG <= 22 ug/L Sep
601AcenaphtheneDAILY MX <= 59 ug/L Sep
601AcenaphtheneMO AVG <= .00096 kg/d Sep
601AcenaphtheneDAILY MX <= .0026 kg/d Sep
601AcrylonitrileMO AVG <= 96 ug/L Sep
601AcrylonitrileDAILY MX <= 242 ug/L Sep
601AcrylonitrileMO AVG <= .0042 kg/d Sep
601AcrylonitrileDAILY MX <= .0105 kg/d Sep
601AnthraceneMO AVG <= 4.3 ug/L Sep
601AnthraceneDAILY MX <= 59 ug/L Sep
601AnthraceneMO AVG <= .00019 kg/d Sep
601AnthraceneDAILY MX <= .00256 kg/d Sep
601Benzo[b]fluorantheneMO AVG <= 23 ug/L Sep
601Benzo[b]fluorantheneDAILY MX <= 61 ug/L Sep
601Benzo[b]fluorantheneMO AVG <= .001 kg/d Sep
601Benzo[b]fluorantheneDAILY MX <= .0026 kg/d Sep
601Benzo[k]fluorantheneMO AVG <= 22 ug/L Sep
601Benzo[k]fluorantheneDAILY MX <= 59 ug/L Sep
601Benzo[k]fluorantheneMO AVG <= .00096 kg/d Sep
601Benzo[k]fluorantheneDAILY MX <= .0026 kg/d Sep
601Benzo[a]pyreneMO AVG <= 23 ug/L Sep
601Benzo[a]pyreneDAILY MX <= 61 ug/L Sep
601Benzo[a]pyreneMO AVG <= .001 kg/d Sep
601Benzo[a]pyreneDAILY MX <= .0026 kg/d Sep
601ChlorobenzeneMO AVG <= 15 ug/L Sep
601ChlorobenzeneDAILY MX <= 28 ug/L Sep
601ChlorobenzeneMO AVG <= .00065 kg/d Sep
601ChlorobenzeneDAILY MX <= .0012 kg/d Sep
601ChryseneMO AVG <= 22 ug/L Sep
601ChryseneDAILY MX <= 59 ug/L Sep
601ChryseneMO AVG <= .00096 kg/d Sep
601ChryseneDAILY MX <= .0026 kg/d Sep
601Diethyl phthalateMO AVG <= 81 ug/L Sep
601Diethyl phthalateDAILY MX <= 203 ug/L Sep
601Diethyl phthalateMO AVG <= .0035 kg/d Sep
601Diethyl phthalateDAILY MX <= .009 kg/d Sep
601Dimethyl phthalateMO AVG <= 19 ug/L Sep
601Dimethyl phthalateDAILY MX <= 47 ug/L Sep
601Dimethyl phthalateMO AVG <= .0008 kg/d Sep
601Dimethyl phthalateDAILY MX <= .002 kg/d Sep
601EthylbenzeneMO AVG <= 32 ug/L Sep
601EthylbenzeneDAILY MX <= 108 ug/L Sep
601EthylbenzeneMO AVG <= .0014 kg/d Sep
601EthylbenzeneDAILY MX <= .0047 kg/d Sep
601FluorantheneMO AVG <= 25 ug/L Sep
601FluorantheneDAILY MX <= 68 ug/L Sep
601FluorantheneMO AVG <= .0011 kg/d Sep
601FluorantheneDAILY MX <= .003 kg/d Sep
601FluoreneMO AVG <= 22 ug/L Sep
601FluoreneDAILY MX <= 59 ug/L Sep
601FluoreneMO AVG <= .00096 kg/d Sep
601FluoreneDAILY MX <= .0026 kg/d Sep
601HexachloroethaneMO AVG <= 21 ug/L Sep
601HexachloroethaneDAILY MX <= 54 ug/L Sep
601HexachloroethaneMO AVG <= .0009 kg/d Sep
601HexachloroethaneDAILY MX <= .0023 kg/d Sep
601Methyl chloride [Chloromethane]MO AVG <= 86 ug/L Sep
601Methyl chloride [Chloromethane]DAILY MX <= 190 ug/L Sep
601Methyl chloride [Chloromethane]MO AVG <= .0037 kg/d Sep
601Methyl chloride [Chloromethane]DAILY MX <= .0082 kg/d Sep
601Methylene chlorideMO AVG <= 40 ug/L Sep
601Methylene chlorideDAILY MX <= 89 ug/L Sep
601Methylene chlorideMO AVG <= .0017 kg/d Sep
601Methylene chlorideDAILY MX <= .0039 kg/d Sep
601NitrobenzeneMO AVG <= 27 ug/L Sep
601NitrobenzeneDAILY MX <= 68 ug/L Sep
601NitrobenzeneMO AVG <= .0012 kg/d Sep
601NitrobenzeneDAILY MX <= .003 kg/d Sep
601PhenanthreneMO AVG <= 22 ug/L Sep
601PhenanthreneDAILY MX <= 59 ug/L Sep
601PhenanthreneMO AVG <= .00096 kg/d Sep
601PhenanthreneDAILY MX <= .0026 kg/d Sep
601PyreneMO AVG <= 25 ug/L Sep
601PyreneDAILY MX <= 67 ug/L Sep
601PyreneMO AVG <= .0011 kg/d Sep
601PyreneDAILY MX <= .0029 kg/d Sep
601TetrachloroethyleneMO AVG <= 22 ug/L Sep
601TetrachloroethyleneDAILY MX <= 56 ug/L Sep
601TetrachloroethyleneMO AVG <= .00096 kg/d Sep
601TetrachloroethyleneDAILY MX <= .0024 kg/d Sep
6011,1-DichloroethaneMO AVG <= 22 ug/L Sep
6011,1-DichloroethaneDAILY MX <= 59 ug/L Sep
6011,1-DichloroethaneMO AVG <= .00096 kg/d Sep
6011,1-DichloroethaneDAILY MX <= .0026 kg/d Sep
6011,1-DichloroethyleneMO AVG <= 16 ug/L Sep
6011,1-DichloroethyleneDAILY MX <= 25 ug/L Sep
6011,1-DichloroethyleneMO AVG <= .0007 kg/d Sep
6011,1-DichloroethyleneDAILY MX <= .0011 kg/d Sep
6011,1,1-TrichloroethaneMO AVG <= 21 ug/L Sep
6011,1,1-TrichloroethaneDAILY MX <= 54 ug/L Sep
6011,1,1-TrichloroethaneMO AVG <= .0009 kg/d Sep
6011,1,1-TrichloroethaneDAILY MX <= .0023 kg/d Sep
6011,1,2-TrichloroethaneMO AVG <= 21 ug/L Sep
6011,1,2-TrichloroethaneDAILY MX <= 54 ug/L Sep
6011,1,2-TrichloroethaneMO AVG <= .0009 kg/d Sep
6011,1,2-TrichloroethaneDAILY MX <= .0023 kg/d Sep
601Benzo[a]anthraceneMO AVG <= 22 ug/L Sep
601Benzo[a]anthraceneDAILY MX <= 59 ug/L Sep
601Benzo[a]anthraceneMO AVG <= .00096 kg/d Sep
601Benzo[a]anthraceneDAILY MX <= .0026 kg/d Sep
6011,2-DichlorobenzeneMO AVG <= 77 ug/L Sep
6011,2-DichlorobenzeneDAILY MX <= 163 ug/L Sep
6011,2-DichlorobenzeneMO AVG <= .0033 kg/d Sep
6011,2-DichlorobenzeneDAILY MX <= .0071 kg/d Sep
6011,2-DichloropropaneMO AVG <= 153 ug/L Sep
6011,2-DichloropropaneDAILY MX <= 230 ug/L Sep
6011,2-DichloropropaneMO AVG <= .0066 kg/d Sep
6011,2-DichloropropaneDAILY MX <= .01 kg/d Sep
601trans-1,2-DichloroethyleneMO AVG <= 21 ug/L Sep
601trans-1,2-DichloroethyleneDAILY MX <= 54 ug/L Sep
601trans-1,2-DichloroethyleneMO AVG <= .00096 kg/d Sep
601trans-1,2-DichloroethyleneDAILY MX <= .0026 kg/d Sep
6011,2,4-TrichlorobenzeneMO AVG <= 68 ug/L Sep
6011,2,4-TrichlorobenzeneDAILY MX <= 140 ug/L Sep
6011,2,4-TrichlorobenzeneMO AVG <= .003 kg/d Sep
6011,2,4-TrichlorobenzeneDAILY MX <= .006 kg/d Sep
6011,3-DichlorobenzeneMO AVG <= 31 ug/L Sep
6011,3-DichlorobenzeneDAILY MX <= 44 ug/L Sep
6011,3-DichlorobenzeneMO AVG <= .0013 kg/d Sep
6011,3-DichlorobenzeneDAILY MX <= .0019 kg/d Sep
6011,4-DichlorobenzeneMO AVG <= 15 ug/L Sep
6011,4-DichlorobenzeneDAILY MX <= 28 ug/L Sep
6011,4-DichlorobenzeneMO AVG <= .00065 kg/d Sep
6011,4-DichlorobenzeneDAILY MX <= .0012 kg/d Sep
6012-ChlorophenolMO AVG <= 31 ug/L Sep
6012-ChlorophenolDAILY MX <= 98 ug/L Sep
6012-ChlorophenolMO AVG <= .0013 kg/d Sep
6012-ChlorophenolDAILY MX <= .0043 kg/d Sep
6012-NitrophenolMO AVG <= 41 ug/L Sep
6012-NitrophenolDAILY MX <= 69 ug/L Sep
6012-NitrophenolMO AVG <= .0018 kg/d Sep
6012-NitrophenolDAILY MX <= .003 kg/d Sep
6012,4-DichlorophenolMO AVG <= 39 ug/L Sep
6012,4-DichlorophenolDAILY MX <= 112 ug/L Sep
6012,4-DichlorophenolMO AVG <= .0017 kg/d Sep
6012,4-DichlorophenolDAILY MX <= .0049 kg/d Sep
6012,4-DimethylphenolMO AVG <= 18 ug/L Sep
6012,4-DimethylphenolDAILY MX <= 36 ug/L Sep
6012,4-DimethylphenolMO AVG <= .0008 kg/d Sep
6012,4-DimethylphenolDAILY MX <= .0016 kg/d Sep
6012,4-DinitrotolueneMO AVG <= 113 ug/L Sep
6012,4-DinitrotolueneDAILY MX <= 285 ug/L Sep
6012,4-DinitrotolueneMO AVG <= .0049 kg/d Sep
6012,4-DinitrotolueneDAILY MX <= .0124 kg/d Sep
6012,4-DinitrophenolMO AVG <= 71 ug/L Sep
6012,4-DinitrophenolDAILY MX <= 123 ug/L Sep
6012,4-DinitrophenolMO AVG <= .0031 kg/d Sep
6012,4-DinitrophenolDAILY MX <= .0053 kg/d Sep
6012,6-DinitrotolueneMO AVG <= 255 ug/L Sep
6012,6-DinitrotolueneDAILY MX <= 641 ug/L Sep
6012,6-DinitrotolueneMO AVG <= .0111 kg/d Sep
6012,6-DinitrotolueneDAILY MX <= .0278 kg/d Sep
6014-NitrophenolMO AVG <= 72 ug/L Sep
6014-NitrophenolDAILY MX <= 124 ug/L Sep
6014-NitrophenolMO AVG <= .0031 kg/d Sep
6014-NitrophenolDAILY MX <= .0054 kg/d Sep
6014,6-Dinitro-o-cresolMO AVG <= 78 ug/L Sep
6014,6-Dinitro-o-cresolDAILY MX <= 277 ug/L Sep
6014,6-Dinitro-o-cresolMO AVG <= .0034 kg/d Sep
6014,6-Dinitro-o-cresolDAILY MX <= .012 kg/d Sep
601PhenolMO AVG <= 15 ug/L Sep
601PhenolDAILY MX <= 26 ug/L Sep
601PhenolMO AVG <= .00065 kg/d Sep
601PhenolDAILY MX <= .0011 kg/d Sep
601NaphthaleneMO AVG <= 22 ug/L Sep
601NaphthaleneDAILY MX <= 59 ug/L Sep
601NaphthaleneMO AVG <= .00096 kg/d Sep
601NaphthaleneDAILY MX <= .0026 kg/d Sep
601Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= 103 ug/L Sep
601Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= 279 ug/L Sep
601Di[2-ethylhexyl] phthalate [DEHP]MO AVG <= .0045 kg/d Sep
601Di[2-ethylhexyl] phthalate [DEHP]DAILY MX <= .0121 kg/d Sep
601Di-n-butyl phthalateMO AVG <= 27 ug/L Sep
601Di-n-butyl phthalateDAILY MX <= 57 ug/L Sep
601Di-n-butyl phthalateMO AVG <= .0012 kg/d Sep
601Di-n-butyl phthalateDAILY MX <= .0025 kg/d Sep
601Vinyl chlorideMO AVG <= 104 ug/L Sep
601Vinyl chlorideDAILY MX <= 268 ug/L Sep
601Vinyl chlorideMO AVG <= .0045 kg/d Sep
601Vinyl chlorideDAILY MX <= .0116 kg/d Sep
601TrichloroethyleneMO AVG <= 21 ug/L Sep
601TrichloroethyleneDAILY MX <= 54 ug/L Sep
601TrichloroethyleneMO AVG <= .0009 kg/d Sep
601TrichloroethyleneDAILY MX <= .0023 kg/d Sep
601HexachlorobenzeneMO AVG <= .1 ug/L Sep
601HexachlorobenzeneDAILY MX <= 28 ug/L Sep
601HexachlorobenzeneMO AVG <= .000004 kg/d Sep
601HexachlorobenzeneDAILY MX <= .0012 kg/d Sep
601HexachlorobutadieneMO AVG <= 20 ug/L Sep
601HexachlorobutadieneDAILY MX <= 49 ug/L Sep
601HexachlorobutadieneMO AVG <= .0009 kg/d Sep
601HexachlorobutadieneDAILY MX <= .0021 kg/d Sep
601Flow, in conduit or thru treatment plantMO AVG report only all year
601Flow, in conduit or thru treatment plantDAILY MX report only all year
601pH, maximumDAILY MX <= 9 SU all year
601pH, minimumDAILY MN >= 6.5 SU all year
6011,3-DichloropropeneMO AVG <= 29 ug/L Sep
6011,3-DichloropropeneDAILY MX <= 44 ug/L Sep
6011,3-DichloropropeneMO AVG <= .0013 kg/d Sep
6011,3-DichloropropeneDAILY MX <= .0019 kg/d Sep
601StyreneMO AVG report only all year
601StyreneDAILY MX report only all year
601ChloroethaneMO AVG <= 104 ug/L Sep
601ChloroethaneDAILY MX <= 268 ug/L Sep
601ChloroethaneMO AVG <= .0045 kg/d Sep
601ChloroethaneDAILY MX <= .0116 kg/d Sep

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states