Darling Ingredients Inc.

NPDES permit WI0038083 · Minor NON-POTW · expired, expires 2024-06-30 · 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 2024-06-30 and is expired: 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
9required values missing, on 5 form(s)
8of 15 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (12)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CANNL AVG report only all year
001BOD, 5-day, 20 deg. CANNL MAX report only all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 40 mg/L all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
001Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]ANNL MAX report only all year
001Phosphorus, total [as P]ANNL MAX 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

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