The Doe Run Company

NPDES permit MO0100218 · Major NON-POTW · administratively continued, expires 2025-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-03-31 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: 2026-07-31.

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 (46)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Thallium, total recoverableDAILY MX report only all year
001Thallium, total recoverableMO AVG report only all year
001Nickel, total recoverableDAILY MX report only all year
001Nickel, total recoverableMO AVG report only all year
001Zinc, total recoverableDAILY MX <= 280 ug/L all year
001Zinc, total recoverableMO AVG <= 135.4 ug/L all year
001Cadmium, total recoverableDAILY MX <= 2.9 ug/L all year
001Cadmium, total recoverableMO AVG <= 1.5 ug/L all year
001Lead, total recoverableDAILY MX <= 18.5 ug/L all year
001Lead, total recoverableMO AVG <= 8.3 ug/L all year
001Copper, total recoverableDAILY MX <= 300 ug/L all year
001Copper, total recoverableMO AVG <= 150 ug/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Toxicity [chronic], Ceriodaphnia dubiaVALUE <= 1.1 toxic all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]VALUE <= 1.1 toxic all year
001Mercury, total recoverableDAILY MX <= 2 ug/L all year
001Mercury, total recoverableMO AVG <= 1 ug/L all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX <= 30 mg/L all year
003Thallium, total recoverableDAILY MX report only all year
003Lead, dissolved [as Pb]DAILY MX <= 114.4 ug/L all year
003Nickel, total recoverableDAILY MX report only all year
003Zinc, total recoverableDAILY MX <= 184.1 ug/L all year
003Cadmium, total recoverableDAILY MX <= 8 ug/L all year
003Copper, total recoverableDAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Mercury, dissolved [as Hg]DAILY MX report only all year
003Precipitation volumeDAILY MX report only all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedDAILY MX <= 30 mg/L all year
004Thallium, total recoverableDAILY MX report only all year
004Lead, dissolved [as Pb]DAILY MX <= 114.4 ug/L all year
004Nickel, total recoverableDAILY MX report only all year
004Zinc, total recoverableDAILY MX <= 184.1 ug/L all year
004Cadmium, total recoverableDAILY MX <= 8 ug/L all year
004Copper, total recoverableDAILY MX report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Mercury, dissolved [as Hg]DAILY MX report only all year
004Precipitation volumeDAILY 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