Leonardite Products, LLC

NPDES permit ND0025283 · Minor NON-POTW · effective, expires 2028-03-31 · 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.

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

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

Last period with anything received: 2026-03-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among ND permits in EPA's filings — check your permit).

Limits in force (22)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMINIMUM report only all year
001Solids, total suspendedMO AVG <= 35 mg/L all year
001Solids, total suspendedDAILY MX <= 70 mg/L all year
001Solids, settleableMINIMUM report only all year
001Solids, settleableMO AVG report only all year
001Solids, settleableDAILY MX <= .5 mL/L all year
001Oil & GreaseDAILY MN report only all year
001Oil & GreaseMO AVG report only all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Iron, total [as Fe]MINIMUM report only all year
001Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
001Iron, total [as Fe]DAILY MX <= 7 mg/L all year
001Manganese, total [as Mn]MINIMUM report only all year
001Manganese, total [as Mn]MO AVG <= 2 mg/L all year
001Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
001DurationTOTAL report only (alert) all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, totalTOTAL report only all year
001Oil and grease visualTOTAL 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