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Aux Sable Liquid Products LP

Natural Gas Distribution, Morris, Illinois. NPDES permit IL0026662, in force until May 31, 2029. Last 12 months: over a limit once (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (2 values), outfall B01 form 0 monthly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 2 of 24 reports late

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

Period endingParameterReportedLimitOver by
August 2026Iron, total [as Fe], 30-day average2.31 mg/L≤ 2 mg/L16%

Limits in force (20)

ParameterStatisticLimitMonthsOutfall
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Temperature, water deg. fahrenheitmonthly maximumreport only (deg F)all yearB01
Sulfate [as S]semi-annual averagereport only (mg/L)Jun, DecB01
Sulfate [as S]semi-annual maximumreport only (mg/L)Jun, DecB01
pHmonthly minimum≥ 6 SUall yearB01
pHmonthly maximum≤ 9 SUall yearB01
Solids, total suspended30-day average≤ 15 mg/Lall yearB01
Solids, total suspendeddaily maximum≤ 30 mg/Lall yearB01
Nitrogen, ammonia total [as N]semi-annual averagereport only (mg/L)Jun, DecB01
Nitrogen, ammonia total [as N]semi-annual maximumreport only (mg/L)Jun, DecB01
Fluoride, total [as F]semi-annual averagereport only (mg/L)Jun, DecB01
Fluoride, total [as F]semi-annual maximumreport only (mg/L)Jun, DecB01
Boron, total [as B]semi-annual averagereport only (mg/L)Jun, DecB01
Boron, total [as B]semi-annual maximumreport only (mg/L)Jun, DecB01
Iron, total [as Fe]30-day average≤ 2 mg/Lall yearB01
Iron, total [as Fe]daily maximum≤ 4 mg/Lall yearB01
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearB01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearB01
Chlorine, total residualdaily maximum≤ .05 mg/Lall yearB01

How strict are these limits?

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

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/IL0026662 · MCP: https://passage-data.com/mcp