Winfield Solutions, LLC

NPDES permit MO0110825 · Minor NON-POTW · effective, expires 2030-04-30 · 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.

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

2values over a limit
2required values missing, on 2 form(s)
0of 23 forms filed late

Last period with anything received: 2026-07-31. Most often over: Dieldrin (1), Benzene hexachloride (1).

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 (67)

OutfallParameterStatisticLimitMonths
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX report only all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
001AmetrynDAILY MX <= 60 ug/L all year
001ChlorpyrifosDAILY MX <= .064 ug/L all year
001AtrazineDAILY MX <= 450 ug/L all year
0014,4'-DDDDAILY MX <= .0014 ug/L all year
001AldrinDAILY MX report only all year
001MetolachlorDAILY MX <= 70 ug/L all year
001DieldrinDAILY MX <= .00012 ug/L all year
001Endosulfan, totalDAILY MX <= .11 ug/L all year
0012,4-Dichlorophenoxyacetic acidDAILY MX <= 70 ug/L all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001ChlordaneDAILY MX <= .00078 ug/L all year
001Imidacloprid [Neonicotinoid]DAILY MX report only all year
001Glyphosate, totalDAILY MX <= 700 ug/L all year
001Benzene hexachlorideDAILY MX <= .012 ug/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 <= 15 mg/L all year
002AmetrynDAILY MX <= 60 ug/L all year
002ChlorpyrifosDAILY MX <= .064 ug/L all year
002AtrazineDAILY MX <= 450 ug/L all year
0024,4'-DDDDAILY MX <= .0014 ug/L all year
002AldrinDAILY MX report only all year
002MetolachlorDAILY MX <= 70 ug/L all year
002DieldrinDAILY MX <= .00012 ug/L all year
002Endosulfan, totalDAILY MX <= .11 ug/L all year
0022,4-Dichlorophenoxyacetic acidDAILY MX <= 70 ug/L all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002ChlordaneDAILY MX <= .00078 ug/L all year
002Imidacloprid [Neonicotinoid]DAILY MX report only all year
002Glyphosate, totalDAILY MX <= 700 ug/L all year
002Benzene hexachlorideDAILY MX <= .012 ug/L 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 <= 15 mg/L all year
003AmetrynDAILY MX <= 60 ug/L all year
003ChlorpyrifosDAILY MX <= .064 ug/L all year
003AtrazineDAILY MX <= 450 ug/L all year
0034,4'-DDDDAILY MX <= .0014 ug/L all year
003AldrinDAILY MX report only all year
003MetolachlorDAILY MX <= 70 ug/L all year
003DieldrinDAILY MX <= .00012 ug/L all year
003Endosulfan, totalDAILY MX <= .11 ug/L all year
0032,4-Dichlorophenoxyacetic acidDAILY MX <= 70 ug/L all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003ChlordaneDAILY MX <= .00078 ug/L all year
003Imidacloprid [Neonicotinoid]DAILY MX report only all year
003Glyphosate, totalDAILY MX <= 700 ug/L all year
003Benzene hexachlorideDAILY MX <= .012 ug/L all year
004Temperature, water deg. fahrenheitDAILY MX report only all year
004Temperature, water deg. fahrenheitMO AVG report only all year
004pHMINIMUM report only all year
004pHMAXIMUM 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
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

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