Poet Biorefining - Laddonia, LLC

NPDES permit MO0132489 · Major NON-POTW · effective, expires 2030-08-31 · EPA's file as of 2026-09-19

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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

2values over a limit
0required values missing, on 0 form(s)
6of 24 forms filed late

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

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 (61)

OutfallParameterStatisticLimitMonths
004Sulfate [as S]DAILY MX report only all year
004Sulfate [as S]MO AVG report only all year
004BOD, 5-day, 20 deg. CDAILY MX report only all year
004BOD, 5-day, 20 deg. CMO AVG <= 36 mg/L all year
004Oxygen demand, chem. [high level] [COD]DAILY MX <= 90 mg/L all year
004Oxygen demand, chem. [high level] [COD]MO AVG report only all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedDAILY MX <= 100 mg/L all year
004Solids, total suspendedMO AVG <= 50 mg/L all year
004Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
004Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
004Nitrogen, total [as N]DAILY MX report only all year
004Nitrogen, total [as N]MO AVG report only all year
004Nitrogen, ammonia total [as N]DAILY MX report only all year
004Nitrogen, ammonia total [as N]MO AVG report only all year
004Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
004Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
004Nitrite + Nitrate total [as N]DAILY MX report only all year
004Nitrite + Nitrate total [as N]MO AVG report only all year
004Phosphorus, total [as P]DAILY MX report only all year
004Phosphorus, total [as P]MO AVG <= 1 mg/L all year
004Phosphorus, total [as P]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
004ChlorideDAILY MX report only all year
004ChlorideMO 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
004Chlorine, total residualDAILY MX report only all year
004Chlorine, total residualMO AVG report only all year
004Toxicity [acute], Ceriodaphnia dubiaDAILY MX report only all year
004Toxicity [acute], Pimephales promelas [Fathead Minnow]DAILY MX report only all year
004Chlorides + SulfatesDAILY MX report only all year
004Chlorides + SulfatesMO AVG report only all year
006Sulfate [as S]DAILY MX report only all year
006Sulfate [as S]MO AVG report only all year
006pHMINIMUM >= 6.5 SU all year
006pHMAXIMUM <= 9 SU all year
006Solids, settleableDAILY MX <= 1 mL/L all year
006Solids, settleableMO AVG <= 1 mL/L all year
006Iron, total recoverableDAILY MX <= 1831 ug/L all year
006Iron, total recoverableMO AVG <= 661 ug/L all year
006Boron, total recoverableDAILY MX <= 3285 ug/L all year
006Boron, total recoverableMO AVG <= 1638 ug/L all year
006Aluminum, total recoverableDAILY MX <= 750 ug/L all year
006Aluminum, total recoverableMO AVG <= 374 ug/L all year
006Manganese, total recoverableDAILY MX report only all year
006Manganese, total recoverableMO AVG report only all year
006ChlorideDAILY MX report only all year
006ChlorideMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Chlorine, total residualDAILY MX <= 17 ug/L all year
006Chlorine, total residualMO AVG <= 8 ug/L all year
006Toxicity [chronic], Ceriodaphnia dubiaDAILY MX report only all year
006Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX report only all year
006Chlorides + SulfatesDAILY MX report only all year
006Chlorides + SulfatesMO AVG 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