Gerdau Specialty Steel North America

NPDES permit MI0028461 · Minor NON-POTW · administratively continued, expires 2017-10-01 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2017-10-01 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

2values over a limit
82required values missing, on 13 form(s)
0of 33 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chlorine, total residual (2).

Reporting

Reports are due about 21 days after each monitoring period ends (the most common figure among MI permits in EPA's filings — check your permit).

Limits in force (49)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L Jan, Apr, Jul, Oct
001Solids, total suspendedDAILY MX <= 40 mg/L Jan, Apr, Jul, Oct
001Solids, total suspendedMO AVG <= 25 lb/d Jan, Apr, Jul, Oct
001Solids, total suspendedDAILY MX <= 50 lb/d Jan, Apr, Jul, Oct
001Oil & GreaseDAILY MX <= 10 mg/L Jan, Apr, Jul, Oct
001Lead, total [as Pb]MX MO AV <= .28 lb/d Jan, Apr, Jul, Oct
001Lead, total [as Pb]MO AVG <= .28 lb/d Jan, Apr, Jul, Oct
001Lead, total [as Pb]DAILY MX <= .84 lb/d Jan, Apr, Jul, Oct
001Lead, total [as Pb]DAILY MX <= .84 lb/d Jan, Apr, Jul, Oct
001Zinc, total [as Zn]MX MO AV <= .42 lb/d Jan, Apr, Jul, Oct
001Zinc, total [as Zn]MO AVG <= .42 lb/d Jan, Apr, Jul, Oct
001Zinc, total [as Zn]DAILY MX <= 1.3 lb/d Jan, Apr, Jul, Oct
001Zinc, total [as Zn]DAILY MX <= 1.3 lb/d Jan, Apr, Jul, Oct
001Toxicity, choice of speciesMO AVG <= 1 tox chronic all year
001Toxicity, choice of speciesDAILY MX report only 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
001Chlorine, total residualDAILY MX <= 38 ug/L all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only all year
001Mercury, total [as Hg]MO AVG report only Jan, Apr, Jul, Oct
001Mercury, total [as Hg]DAILY MX report only Jan, Apr, Jul, Oct
001Mercury, total [as Hg]MO AVG report only Jan, Apr, Jul, Oct
001Mercury, total [as Hg]DAILY MX report only Jan, Apr, Jul, Oct
001Mercury, total [as Hg]1D <= 3 ng/L Jan, Apr, Jul, Oct
001Mercury, total [as Hg]1D <= .0000038 lb/d Jan, Apr, Jul, Oct
001Outfall observation,visual, y/n responseVALUE report only all year
002pHDAILY MN >= 6.5 SU all year
002pHDAILY MX <= 9 SU all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Barium, total [as Ba]DAILY MX report only Jan, Apr, Jul, Oct
002Copper, total [as Cu]MO AVG <= 28 ug/L all year
002Copper, total [as Cu]DAILY MX <= 92 ug/L all year
002Copper, total [as Cu]MO AVG <= .034 lb/d all year
002Copper, total [as Cu]DAILY MX <= .11 lb/d all year
002Lead, total [as Pb]DAILY MX report only Jan, Apr, Jul, Oct
002Molybdenum, total [as Mo]MO AVG <= 3200 ug/L all year
002Molybdenum, total [as Mo]DAILY MX report only all year
002Molybdenum, total [as Mo]MO AVG <= 3.8 lb/d all year
002Molybdenum, total [as Mo]DAILY MX report only all year
002Zinc, total [as Zn]MO AVG <= 520 ug/L all year
002Zinc, total [as Zn]DAILY MX <= 1000 ug/L all year
002Zinc, total [as Zn]MO AVG <= .63 lb/d all year
002Zinc, total [as Zn]DAILY MX <= 1.2 lb/d 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
002Outfall observation,visual, y/n responseVALUE report only 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