Mahle Engine Components USA Inc

NPDES permit OH0127701 · Minor NON-POTW · effective, expires 2028-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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EPA's record, 2025-09-01 to 2026-08-31

1values over a limit
0required values missing, on 0 form(s)
0of 37 forms filed late

Last period with anything received: 2026-07-31. Most often over: BOD, carbonaceous [5 day, 20 C] (1).

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 (79)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeDAILY MX report only all year
001Flow rateMO AVG report only all year
001Flow rateDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MN >= 6 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 14.7 mg/L all year
001Solids, total suspendedDAILY MX <= 28.7 mg/L all year
001Solids, total suspendedMO AVG <= 1.67 kg/d all year
001Solids, total suspendedDAILY MX <= 3.26 kg/d all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= 8.4 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 16.3 mg/L all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= .96 kg/d all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 1.85 kg/d all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Copper, total recoverableDAILY MX <= 65 ug/L all year
001E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWK GEOMN <= 284 MPN/100mL May, Jun, Jul, Aug, Sep, Oct
001Toxicity [acute], Ceriodaphnia dubiaMO AVG report only Mar, Jun, Aug, Dec
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only Mar, Jun, Aug, Dec
001Solids, total dissolved- 180 deg. CMO AVG report only all year
001Solids, total dissolved- 180 deg. CDAILY MX report only all year
588Sludge waste from secondary clarifiersMO AVG report only Dec
588Sludge waste from secondary clarifiersDAILY MX report only Dec
603Flow rateMO AVG report only all year
603Flow rateDAILY MX report only all year
603Solids, total suspendedMO AVG report only all year
603Solids, total suspendedDAILY MX report only all year
603Nitrogen, ammonia total [as N]MO AVG <= 3 mg/L all year
603Nitrogen, ammonia total [as N]DAILY MX <= 4.5 mg/L all year
603Nitrogen, ammonia total [as N]MO AVG <= .023 kg/d all year
603Nitrogen, ammonia total [as N]DAILY MX <= .034 kg/d all year
603Turbidity [severity]MO AVG report only all year
603Turbidity [severity]DAILY MX report only all year
603BOD, carbonaceous [5 day, 20 C]MO AVG <= 8.97 mg/L all year
603BOD, carbonaceous [5 day, 20 C]DAILY MX <= 13.5 mg/L all year
603BOD, carbonaceous [5 day, 20 C]MO AVG <= .068 kg/d all year
603BOD, carbonaceous [5 day, 20 C]DAILY MX <= .102 kg/d all year
604Flow rateMO AVG report only all year
604Flow rateDAILY MX report only all year
604Solids, total suspendedMO AVG report only all year
604Solids, total suspendedDAILY MX report only all year
604Oil and grease, hexane extr methodMO AVG <= 9.24 mg/L all year
604Oil and grease, hexane extr methodDAILY MX <= 17.8 mg/L all year
604Copper, total [as Cu]MO AVG <= 2070 ug/L all year
604Copper, total [as Cu]DAILY MX <= 3380 ug/L all year
604Copper, total [as Cu]MO AVG <= .035 kg/d all year
604Copper, total [as Cu]DAILY MX <= .076 kg/d all year
604Lead, total [as Pb]MO AVG <= 430 ug/L all year
604Lead, total [as Pb]DAILY MX <= 690 ug/L all year
604Lead, total [as Pb]MO AVG <= .035 kg/d all year
604Lead, total [as Pb]DAILY MX <= .061 kg/d all year
604Nickel, total [as Ni]MO AVG <= 2380 ug/L all year
604Nickel, total [as Ni]DAILY MX <= 3980 ug/L all year
604Nickel, total [as Ni]MO AVG <= .035 kg/d all year
604Nickel, total [as Ni]DAILY MX <= .038 kg/d all year
604Silver, total [as Ag]MO AVG <= 240 ug/L all year
604Silver, total [as Ag]DAILY MX <= 430 ug/L all year
604Silver, total [as Ag]MO AVG <= .021 kg/d all year
604Silver, total [as Ag]DAILY MX <= .038 kg/d all year
604Zinc, total [as Zn]MO AVG <= 1480 ug/L all year
604Zinc, total [as Zn]DAILY MX <= 2610 ug/L all year
604Zinc, total [as Zn]MO AVG <= .035 kg/d all year
604Zinc, total [as Zn]DAILY MX <= .076 kg/d all year
604Tin, total [as Sn]MO AVG <= 851 ug/L all year
604Tin, total [as Sn]DAILY MX <= 1700 ug/L all year
604Tin, total [as Sn]MO AVG <= .075 kg/d all year
604Tin, total [as Sn]DAILY MX <= .151 kg/d all year
604Mercury, total low levelMO AVG report only Mar, Sep
604Mercury, total low levelDAILY MX report only Mar, Sep
604pH Range Excursion, Maximum DurationDAILY MX <= 60 min all year
604pH, maximumDAILY MX <= 9 SU all year
604pH, minimumDAILY MN >= 6 SU all year
604pH range excursions, > 60 minutesDAILY MX <= 0 occur/d all year
604pH range excursions, monthly total accumDAILY MX <= 446 min all year
801Toxicity [acute], Ceriodaphnia dubiaMO AVG report only Mar, Jun, Aug, Dec
801Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only Mar, Jun, Aug, Dec

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