Passage Data · Check a report · Use it from your AI

POET Biorefining - Preston, LLC

Industrial Organic Chemicals, Preston, Minnesota. NPDES permit MN0064017, in force until Jul 31, 2027. Last 12 months: over a limit 2 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D002 form A1 monthly (20 values), outfall D003 form A1 monthly (20 values)
Renewal application due
Feb 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 24 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
July 2026Solids, total suspended, daily maximum82≤ 44 mg/L86%
July 2026Solids, total suspended, monthly average61≤ 30 mg/L103%

Limits in force (40)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmaximum daily averagereport only (deg F)all yearD002
Specific conductancemonthly maximumreport only (umho/cm)all yearD002
Precipitation, total defined period/inmonthly totalreport only (in)all yearD002
pHinstantaneous minimum≥ 6 SUall yearD002
pHinstantaneous maximum≤ 9 SUall yearD002
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD002
Solids, total suspendeddaily maximum≤ 44 mg/Lall yearD002
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearD002
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD002
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD002
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD002
Organics, gasoline rangemonthly maximumreport only (ug/L)all yearD002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD002
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD002
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD002
Chlorine, total residualdaily maximum≤ .038 mg/Lall yearD002
Ethanolmonthly maximumreport only (ug/L)all yearD002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD002
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 37 mg/Lall yearD002
Duration of dischargemonthly totalreport only (d/mo)all yearD002
Temperature, water deg. fahrenheitmaximum daily averagereport only (deg F)all yearD003
Specific conductancemonthly maximumreport only (umho/cm)all yearD003
Precipitation, total defined period/inmonthly totalreport only (in)all yearD003
pHinstantaneous minimum≥ 6 SUall yearD003
pHinstantaneous maximum≤ 9 SUall yearD003
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD003
Solids, total suspendeddaily maximum≤ 44 mg/Lall yearD003
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all yearD003
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all yearD003
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all yearD003
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD003
Organics, gasoline rangemonthly maximumreport only (ug/L)all yearD003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD003
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD003
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD003
Chlorine, total residualdaily maximum≤ .038 mg/Lall yearD003
Ethanolmonthly maximumreport only (ug/L)all yearD003
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD003
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 37 mg/Lall yearD003
Duration of dischargemonthly totalreport only (d/mo)all yearD003

How strict are these limits?

Cited limits by parameter: Minnesota's rules and the federal ones.

Same industry: the 15 Chemicals and Allied Products permits in Minnesota.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0064017 · MCP: https://passage-data.com/mcp