Magellan Aerospace Middletown, Inc

NPDES permit OH0009156 · Minor NON-POTW · effective, expires 2030-12-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

1values over a limit
198required values missing, on 6 form(s)
2of 16 forms filed late

Last period with anything received: 2026-03-31. Most often over: pH (1).

Reporting

Reports are due about 20 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (68)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 45 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nickel, total recoverableMO AVG <= 110 ug/L all year
001Nickel, total recoverableDAILY MX <= 960 ug/L all year
001Silver total recoverableMO AVG <= 1.3 ug/L all year
001Silver total recoverableDAILY MX <= 6.9 ug/L all year
001Zinc, total recoverableMO AVG <= 250 ug/L all year
001Zinc, total recoverableDAILY MX <= 250 ug/L all year
001Cadmium, total recoverableMO AVG <= 4.8 ug/L all year
001Cadmium, total recoverableDAILY MX <= 12 ug/L all year
001Lead, total recoverableMO AVG <= 19 ug/L all year
001Lead, total recoverableDAILY MX <= 360 ug/L all year
001Chromium, total recoverableMO AVG <= 170 ug/L all year
001Chromium, total recoverableDAILY MX <= 3600 ug/L all year
001Copper, total recoverableMO AVG <= 19 ug/L all year
001Copper, total recoverableDAILY MX <= 31 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Cyanide, free availableMO AVG <= 12 ug/L all year
001Cyanide, free availableDAILY MX <= 46 ug/L all year
001Solids, total dissolved- 180 deg. CMO AVG report only all year
001Solids, total dissolved- 180 deg. CDAILY MX report only all year
601Solids, total suspendedMO AVG <= 31 mg/L all year
601Solids, total suspendedDAILY MX <= 60 mg/L all year
601Solids, total suspendedMO AVG <= 2.3 kg/d all year
601Solids, total suspendedDAILY MX <= 4.5 kg/d all year
601Oil and grease, hexane extr methodMO AVG <= 26 mg/L all year
601Oil and grease, hexane extr methodDAILY MX <= 52 mg/L all year
601Oil and grease, hexane extr methodMO AVG <= 1.9 kg/d all year
601Oil and grease, hexane extr methodDAILY MX <= 3.9 kg/d all year
601Cyanide, total [as CN]MO AVG <= .64 mg/L all year
601Cyanide, total [as CN]DAILY MX <= 1.18 mg/L all year
601Cyanide, total [as CN]MO AVG <= .048 kg/d all year
601Cyanide, total [as CN]DAILY MX <= .088 kg/d all year
601Nickel, total recoverableMO AVG <= 2.38 ug/L all year
601Nickel, total recoverableDAILY MX <= 3.98 ug/L all year
601Nickel, total recoverableMO AVG <= .00018 kg/d all year
601Nickel, total recoverableDAILY MX <= .0003 kg/d all year
601Silver total recoverableMO AVG <= .24 ug/L all year
601Silver total recoverableDAILY MX <= .43 ug/L all year
601Silver total recoverableMO AVG <= .000018 kg/d all year
601Silver total recoverableDAILY MX <= .000032 kg/d all year
601Zinc, total recoverableMO AVG <= 1.48 ug/L all year
601Zinc, total recoverableDAILY MX <= 2.61 ug/L all year
601Zinc, total recoverableMO AVG <= .00011 kg/d all year
601Zinc, total recoverableDAILY MX <= .0002 kg/d all year
601Cadmium, total recoverableMO AVG <= .26 ug/L all year
601Cadmium, total recoverableDAILY MX <= .69 ug/L all year
601Cadmium, total recoverableMO AVG <= .000019 kg/d all year
601Cadmium, total recoverableDAILY MX <= .000052 kg/d all year
601Lead, total recoverableMO AVG <= .43 ug/L all year
601Lead, total recoverableDAILY MX <= .69 ug/L all year
601Lead, total recoverableMO AVG <= .000032 kg/d all year
601Lead, total recoverableDAILY MX <= .000052 kg/d all year
601Chromium, total recoverableMO AVG <= 1.71 ug/L all year
601Chromium, total recoverableDAILY MX <= 2.77 ug/L all year
601Chromium, total recoverableMO AVG <= .00013 kg/d all year
601Chromium, total recoverableDAILY MX <= .00021 kg/d all year
601Copper, total recoverableMO AVG <= 2.04 ug/L all year
601Copper, total recoverableDAILY MX <= 3.33 ug/L all year
601Copper, total recoverableMO AVG <= .00015 kg/d all year
601Copper, total recoverableDAILY MX <= .00025 kg/d all year
601Organics, total toxic [TTO]DAILY MX <= 2.1 ug/L Sep
601Organics, total toxic [TTO]DAILY MX <= .00016 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