Missouri Walnut, LLC

NPDES permit MO0138231 · Minor NON-POTW · administratively continued, expires 2024-09-30 · 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 2024-09-30 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

0values over a limit
46required values missing, on 4 form(s)
4of 16 forms filed late

Last period with anything received: 2026-06-30.

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 (46)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheitMO AVG report only all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001Oxygen demand, chem. [high level] [COD]MO AVG report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, settleableDAILY MX <= 1.5 mL/L all year
001Solids, settleableMO AVG <= 1 mL/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
001Zinc, total recoverableDAILY MX <= 188 ug/L all year
001Zinc, total recoverableMO AVG <= 93 ug/L all year
001ChlorideDAILY MX <= 377 mg/L all year
001ChlorideMO AVG <= 188 mg/L all year
001RainfallDAILY MX report only all year
001RainfallMO AVG report only all year
001Storm water flowDAILY MX report only all year
001Storm water flowMO AVG report only all year
001Chlorides + SulfatesDAILY MX <= 1000 mg/L all year
001Chlorides + SulfatesMO AVG <= 1000 mg/L all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX report only all year
002Oil and grease [soxhlet extr.] tot.DAILY MX <= 10 mg/L all year
002Zinc, total recoverableDAILY MX report only all year
002RainfallDAILY MX report only all year
002Storm water flowDAILY MX report only all year
003Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
003pHMINIMUM >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX report only all year
003Oil and grease [soxhlet extr.] tot.DAILY MX <= 10 mg/L all year
003Zinc, total recoverableDAILY MX report only all year
003RainfallDAILY MX report only all year
003Storm water flowDAILY MX report only all year
004Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Solids, total suspendedDAILY MX report only all year
004Oil and grease [soxhlet extr.] tot.DAILY MX <= 10 mg/L all year
004Zinc, total recoverableDAILY MX report only all year
004RainfallDAILY MX report only all year
004Storm water flowDAILY 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