Midwest Railcar Repair, Inc.

NPDES permit SD0028436 · Minor NON-POTW · administratively continued, expires 2021-09-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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.

This permit expired on 2021-09-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 24 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among SD permits in EPA's filings — check your permit).

Limits in force (52)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheit30DA AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
001Conductivity30DA AVG report only all year
001ConductivityDAILY MX <= 4375 umho/cm all year
001Oxygen, dissolved [DO]DAILY MN >= 5 mg/L all year
001BOD, 5-day, 20 deg. C30DA AVG <= 22 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 56 mg/L all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 26 mg/L all year
001Solids, total suspendedDAILY MX <= 58 mg/L all year
001Oil and grease, hexane extr method30DA AVG <= 8.8 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, total [as N]30DA AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, nitrate total [as N]30DA AVG <= 50 mg/L all year
001Nitrogen, nitrate total [as N]DAILY MX <= 88 mg/L all year
001Phosphorus, total [as P]30DA AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Hardness, total [as CaCO3]30DA AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Selenium, total recoverable30DA AVG <= 4.6 ug/L all year
001Selenium, total recoverableDAILY MX <= 13.27 ug/L all year
001Nickel, total recoverable30DA AVG <= 60.71 ug/L all year
001Nickel, total recoverableDAILY MX <= 659.84 ug/L all year
001Silver total recoverableDAILY MX <= 6.46 ug/L all year
001Zinc, total recoverable30DA AVG <= 137.94 ug/L all year
001Zinc, total recoverableDAILY MX <= 165.22 ug/L all year
001Cadmium, total recoverable30DA AVG <= .28 ug/L all year
001Cadmium, total recoverableDAILY MX <= 2.99 ug/L all year
001Lead, total recoverable30DA AVG <= 3.07 ug/L all year
001Lead, total recoverableDAILY MX <= 100.13 ug/L all year
001Chromium, total recoverable30DA AVG <= 11 ug/L all year
001Chromium, total recoverableDAILY MX <= 16 ug/L all year
001Copper, total recoverable30DA AVG <= 10.47 ug/L all year
001Copper, total recoverableDAILY MX <= 19.69 ug/L all year
001FluorantheneDAILY MX <= .076 mg/L all year
001PhenanthreneDAILY MX <= .34 mg/L all year
001Flow, totalMO TOTAL report only all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX < 1 tox acute all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX < 1 tox acute all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX < 1 tox acute all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX < 1 tox acute all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX < 1 tox acute all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX < 1 tox acute all year
001Solids, total dissolved30DA AVG report only all year
001Solids, total dissolvedDAILY MX <= 4375 mg/L all year
001Mercury, total recoverable30DA AVG <= .77 ug/L all year
001Mercury, total recoverableDAILY MX <= 1.4 ug/L all year
001Flow, process wastewater30DA AVG report only all year
001Flow, process wastewaterDAILY MX report only all year
001Oil and grease visualDAILY MX < 1 N=0;Y=1 all year

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