The Doe Run Resource Corporation

NPDES permit MO0001856 · Major NON-POTW · administratively continued, expires 2024-04-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-04-30 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

10values over a limit
0required values missing, on 0 form(s)
0of 69 forms filed late

Last period with anything received: 2026-07-31. Most often over: Zinc, total recoverable (2), Cadmium, total recoverable (2), Lead, total recoverable (2).

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 (81)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Nickel, total recoverableDAILY MX report only all year
001Nickel, total recoverableDAILY MX report only all year
001Nickel, total recoverableMO AVG report only all year
001Zinc, total recoverableDAILY MX <= 275.5 ug/L all year
001Zinc, total recoverableDAILY MX <= 226 ug/L all year
001Zinc, total recoverableMO AVG <= 137.3 ug/L all year
001Cadmium, total recoverableDAILY MX <= 13.8 ug/L all year
001Cadmium, total recoverableDAILY MX <= 1 ug/L all year
001Cadmium, total recoverableMO AVG <= .5 ug/L all year
001Lead, total recoverableDAILY MX <= 23 ug/L all year
001Lead, total recoverableDAILY MX <= 361 ug/L all year
001Lead, total recoverableMO AVG <= 11.5 ug/L all year
001Copper, total recoverableDAILY MX <= 29 ug/L all year
001Copper, total recoverableDAILY MX <= 29 ug/L all year
001Copper, total recoverableMO AVG <= 12 ug/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only 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 dubiaDAILY MX <= 1.6 toxic all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX <= 1.6 toxic all year
002pHMINIMUM >= 6.5 SU all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 30 mg/L all year
002Solids, total suspendedMO AVG <= 20 mg/L all year
002Nickel, total recoverableDAILY MX report only all year
002Nickel, total recoverableDAILY MX report only all year
002Nickel, total recoverableMO AVG report only all year
002Zinc, total recoverableDAILY MX <= 275.5 ug/L all year
002Zinc, total recoverableDAILY MX <= 226 ug/L all year
002Zinc, total recoverableMO AVG <= 137.3 ug/L all year
002Cadmium, total recoverableDAILY MX <= 1 ug/L all year
002Cadmium, total recoverableDAILY MX <= 13.8 ug/L all year
002Cadmium, total recoverableMO AVG <= .5 ug/L all year
002Lead, total recoverableDAILY MX <= 23 ug/L all year
002Lead, total recoverableDAILY MX <= 361 ug/L all year
002Lead, total recoverableMO AVG <= 11.5 ug/L all year
002Copper, total recoverableDAILY MX <= 29 ug/L all year
002Copper, total recoverableDAILY MX <= 29 ug/L all year
002Copper, total recoverableMO AVG <= 12 ug/L all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Toxicity [chronic], Ceriodaphnia dubiaDAILY MX <= 1.6 toxic all year
002Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX <= 1.6 toxic all year
003pHMINIMUM >= 6.5 SU all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 30 mg/L all year
003Solids, total suspendedMO AVG <= 20 mg/L all year
003Nickel, total recoverableDAILY MX report only all year
003Nickel, total recoverableDAILY MX report only all year
003Nickel, total recoverableMO AVG report only all year
003Zinc, total recoverableDAILY MX <= 226 ug/L all year
003Zinc, total recoverableDAILY MX <= 275.5 ug/L all year
003Zinc, total recoverableMO AVG <= 137.3 ug/L all year
003Cadmium, total recoverableDAILY MX <= 1 ug/L all year
003Cadmium, total recoverableDAILY MX <= 13.8 ug/L all year
003Cadmium, total recoverableMO AVG <= .5 ug/L all year
003Lead, total recoverableDAILY MX <= 361 ug/L all year
003Lead, total recoverableDAILY MX <= 23 ug/L all year
003Lead, total recoverableMO AVG <= 11.5 ug/L all year
003Copper, total recoverableDAILY MX <= 29 ug/L all year
003Copper, total recoverableDAILY MX <= 29 ug/L all year
003Copper, total recoverableMO AVG <= 12 ug/L all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Toxicity [chronic], Ceriodaphnia dubiaDAILY MX <= 1.6 toxic all year
003Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX <= 1.6 toxic 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