US Department of Interior, USGS

NPDES permit MO0003999 · Minor FEDERAL · effective, expires 2027-07-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
4of 32 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (44)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [high level] [COD]DAILY MX <= 60 mg/L all year
001Oxygen demand, chem. [high level] [COD]MO AVG <= 40 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 80 mg/L all year
001Solids, total suspendedMO AVG <= 60 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Cadmium, total recoverableDAILY MX <= 2.4 ug/L all year
001Cadmium, total recoverableMO AVG <= .7 ug/L all year
001Lead, total recoverableDAILY MX <= 14.7 ug/L all year
001Lead, total recoverableMO AVG <= 10.3 ug/L all year
001Copper, total recoverableDAILY MX <= 35.6 ug/L all year
001Copper, total recoverableMO AVG <= 17.7 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 dubiaDAILY MX <= 1.6 toxic all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX <= 1.6 toxic all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]MO AVG report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedMO AVG report only all year
002Nitrogen, total [as N]DAILY MX report only all year
002Nitrogen, total [as N]MO AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Phosphorus, total [as P]MO AVG report only all year
002Hardness, total [as CaCO3]DAILY MX report only all year
002Hardness, total [as CaCO3]MO AVG report only all year
002Cadmium, total recoverableDAILY MX <= 2.4 ug/L all year
002Cadmium, total recoverableMO AVG <= .7 ug/L all year
002Lead, total recoverableDAILY MX <= 14.7 ug/L all year
002Lead, total recoverableMO AVG <= 10.3 ug/L all year
002Copper, total recoverableDAILY MX <= 35.6 ug/L all year
002Copper, total recoverableMO MAX <= 17.7 ug/L 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

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