THE DOE RUN RESOURCES CORPORATION

NPDES permit MO0133221 · Minor NON-POTW · effective, expires 2030-12-31 · 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.

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

0values over a limit
0required values missing, on 0 form(s)
0of 5 forms filed late

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

Reporting

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

Limits in force (10)

OutfallParameterStatisticLimitMonths
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX report only all year
003Zinc, dissolved [as Zn]DAILY MX <= 255 ug/L all year
003Cadmium, total recoverableDAILY MX <= 12.5 ug/L all year
003Lead, total recoverableDAILY MX <= 253 ug/L all year
003Copper, total recoverableDAILY MX <= 32.3 ug/L all year
003Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 1 toxic all year
003Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 1 toxic all year
003Storm water flowDAILY 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