Missouri American Water

NPDES permit MO0003727 · Minor NON-POTW · administratively continued, expires 2026-03-31 · 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.

This permit expired on 2026-03-31 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
2required values missing, on 1 form(s)
0of 48 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 (102)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 10.5 SU all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, settleableDAILY MX report only all year
001Solids, settleableMO AVG report only all year
001Solids, settleableDAILY MX report only all year
001Solids, settleableMO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Fluoride, total [as F]DAILY MX report only all year
001Fluoride, total [as F]MO AVG report only all year
001Iron, total recoverableDAILY MX report only all year
001Iron, total recoverableMO AVG report only all year
001Aluminum, total recoverableDAILY MX report only all year
001Aluminum, total recoverableMO AVG 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
001Chlorine, total residualDAILY MX report only all year
001Chlorine, total residualMO AVG report only all year
001Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 3.3 toxic all year
001Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 3.3 toxic all year
001Outfall observation,visual, y/n responseDAILY MN report only all year
001Outfall observation,visual, y/n responseMO AV MN report only all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 10.5 SU all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedMO AVG report only all year
002Solids, total suspendedDAILY MX report only all year
002Solids, total suspendedMO AVG report only all year
002Solids, settleableDAILY MX report only all year
002Solids, settleableMO AVG report only all year
002Solids, settleableDAILY MX report only all year
002Solids, settleableMO AVG report only all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]MO AVG report only all year
002Fluoride, total [as F]DAILY MX report only all year
002Fluoride, total [as F]MO AVG report only all year
002Iron, total recoverableDAILY MX report only all year
002Iron, total recoverableMO AVG report only all year
002Aluminum, total recoverableDAILY MX report only all year
002Aluminum, total recoverableMO AVG 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
002Chlorine, total residualDAILY MX report only all year
002Chlorine, total residualMO AVG report only all year
002Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 3.3 toxic all year
002Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 3.3 toxic all year
002Outfall observation,visual, y/n responseDAILY MN report only all year
002Outfall observation,visual, y/n responseMO AV MN report only all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 10.5 SU all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, settleableDAILY MX report only all year
003Solids, settleableMO AVG report only all year
003Solids, settleableDAILY MX report only all year
003Solids, settleableMO AVG report only all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrogen, ammonia total [as N]MO AVG report only all year
003Fluoride, total [as F]DAILY MX report only all year
003Fluoride, total [as F]MO AVG report only all year
003Iron, total recoverableDAILY MX report only all year
003Iron, total recoverableMO AVG report only all year
003Aluminum, total recoverableDAILY MX report only all year
003Aluminum, total recoverableMO AVG 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
003Chlorine, total residualDAILY MX report only all year
003Chlorine, total residualMO AVG report only all year
003Toxicity [acute], Ceriodaphnia dubiaDAILY MX <= 3.3 toxic all year
003Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 3.3 toxic all year
003Outfall observation,visual, y/n responseDAILY MN report only all year
003Outfall observation,visual, y/n responseMO AV MN report only all year
004Solids, total suspendedDAILY MX report only all year
004Solids, total suspendedMO AVG report only all year
004Solids, total suspendedDAILY MX report only all year
004Solids, total suspendedMO AVG report only all year
004Solids, settleableDAILY MX report only all year
004Solids, settleableMO AVG report only all year
004Fluoride, total [as F]DAILY MX report only all year
004Fluoride, total [as F]MO AVG report only all year
004Iron, total recoverableDAILY MX report only all year
004Iron, total recoverableMO AVG report only all year
004Aluminum, total recoverableDAILY MX report only all year
004Aluminum, total recoverableMO AVG report only all year
004Copper, total recoverableDAILY MX report only all year
004Copper, total recoverableMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
03BToxicity [acute], Ceriodaphnia dubiaDAILY MX <= 3.3 toxic all year
03BToxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX <= 3.3 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