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Valero Renewable Fuels Co. LLC-Welcome Plant

Industrial Organic Chemicals, Welcome, Minnesota. NPDES permit MN0068161, in force until Jun 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 47 days after each period: outfall D006 form A1 monthly (14 values), outfall D007 form A1 monthly (14 values)
Renewal application due
Jan 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (28)

ParameterStatisticLimitMonthsOutfall
Specific conductancemonthly maximumreport only (umho/cm)all yearD006
pHinstantaneous minimum≥ 6 SUall yearD006
pHinstantaneous maximum≤ 9 SUall yearD006
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD006
Solids, total suspendeddaily maximum≤ 42 mg/Lall yearD006
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD006
Organics, gasoline rangemonthly maximumreport only (ug/L)all yearD006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD006
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD006
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD006
Ethanolmonthly maximumreport only (ug/L)all yearD006
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD006
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 50 mg/Lall yearD006
Duration of dischargemonthly totalreport only (d/mo)all yearD006
Specific conductancemonthly maximumreport only (umho/cm)all yearD007
pHinstantaneous minimum≥ 6 SUall yearD007
pHinstantaneous maximum≤ 9 SUall yearD007
Solids, total suspendedmonthly average≤ 30 mg/Lall yearD007
Solids, total suspendeddaily maximum≤ 39 mg/Lall yearD007
Phosphorus, total [as P]monthly averagereport only (mg/L)all yearD007
Organics, gasoline rangemonthly maximumreport only (ug/L)all yearD007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearD007
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all yearD007
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all yearD007
Ethanolmonthly maximumreport only (ug/L)all yearD007
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/Lall yearD007
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 38 mg/Lall yearD007
Duration of dischargemonthly totalreport only (d/mo)all yearD007

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/MN0068161 · MCP: https://passage-data.com/mcp