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Wedron Silica Company

Industrial Sand, Wedron, Illinois. NPDES permit IL0001759, in force until Nov 30, 2030. Last 12 months: over a limit once (last January 2026), 41 of 53 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form 0 monthly (19 values), outfall 002 form 0 monthly (19 values), outfall 003 form 0 monthly (19 values), outfall 004 form 0 monthly (19 values), outfall 005 form 0 monthly (19 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 12 of 48 reports late

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

Period endingParameterReportedLimitOver by
January 2026Solids, total suspended, 30-day average36 mg/L≤ 25 mg/L44%

Limits in force (95)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year001
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspended30-day average≤ 25 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Phosphorus, total [as P]30-day averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Toluene30-day averagereport only (mg/L)all year001
Toluenedaily maximumreport only (mg/L)all year001
Benzene30-day averagereport only (mg/L)all year001
Benzenedaily maximumreport only (mg/L)all year001
Ethylbenzene30-day averagereport only (mg/L)all year001
Ethylbenzenedaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Offensive Conditionsvaluereport only (N=0;Y=1)all year001
Xylene [mix of m+o+p]30-day averagereport only (mg/L)all year001
Xylene [mix of m+o+p]daily maximumreport only (mg/L)all year001
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year002
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year002
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspended30-day average≤ 25 mg/Lall year002
Solids, total suspendeddaily maximum≤ 45 mg/Lall year002
Phosphorus, total [as P]30-day averagereport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Toluene30-day averagereport only (mg/L)all year002
Toluenedaily maximumreport only (mg/L)all year002
Benzene30-day averagereport only (mg/L)all year002
Benzenedaily maximumreport only (mg/L)all year002
Ethylbenzene30-day averagereport only (mg/L)all year002
Ethylbenzenedaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Offensive Conditionsvaluereport only (N=0;Y=1)all year002
Xylene [mix of m+o+p]30-day averagereport only (mg/L)all year002
Xylene [mix of m+o+p]daily maximumreport only (mg/L)all year002
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year003
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year003
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year003
pHminimum≥ 6.5 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspended30-day average≤ 25 mg/Lall year003
Solids, total suspendeddaily maximum≤ 45 mg/Lall year003
Phosphorus, total [as P]30-day averagereport only (mg/L)all year003
Phosphorus, total [as P]daily maximumreport only (mg/L)all year003
Toluene30-day averagereport only (mg/L)all year003
Toluenedaily maximumreport only (mg/L)all year003
Benzene30-day averagereport only (mg/L)all year003
Benzenedaily maximumreport only (mg/L)all year003
Ethylbenzene30-day averagereport only (mg/L)all year003
Ethylbenzenedaily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Offensive Conditionsvaluereport only (N=0;Y=1)all year003
Xylene [mix of m+o+p]30-day averagereport only (mg/L)all year003
Xylene [mix of m+o+p]daily maximumreport only (mg/L)all year003
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year004
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year004
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year004
pHminimum≥ 6.5 SUall year004
pHmaximum≤ 9 SUall year004
Solids, total suspended30-day average≤ 25 mg/Lall year004
Solids, total suspendeddaily maximum≤ 45 mg/Lall year004
Phosphorus, total [as P]30-day averagereport only (mg/L)all year004
Phosphorus, total [as P]daily maximumreport only (mg/L)all year004
Toluene30-day averagereport only (mg/L)all year004
Toluenedaily maximumreport only (mg/L)all year004
Benzene30-day averagereport only (mg/L)all year004
Benzenedaily maximumreport only (mg/L)all year004
Ethylbenzene30-day averagereport only (mg/L)all year004
Ethylbenzenedaily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Offensive Conditionsvaluereport only (N=0;Y=1)all year004
Xylene [mix of m+o+p]30-day averagereport only (mg/L)all year004
Xylene [mix of m+o+p]daily maximumreport only (mg/L)all year004
Oxygen, dissolved [DO]monthly average minimumreport only (mg/L)all year005
Oxygen, dissolved [DO]minimum weekly averagereport only (mg/L)all year005
Oxygen, dissolved [DO]daily minimumreport only (mg/L)all year005
pHminimum≥ 6.5 SUall year005
pHmaximum≤ 9 SUall year005
Solids, total suspended30-day average≤ 25 mg/Lall year005
Solids, total suspendeddaily maximum≤ 45 mg/Lall year005
Phosphorus, total [as P]30-day averagereport only (mg/L)all year005
Phosphorus, total [as P]daily maximumreport only (mg/L)all year005
Toluene30-day averagereport only (mg/L)all year005
Toluenedaily maximumreport only (mg/L)all year005
Benzene30-day averagereport only (mg/L)all year005
Benzenedaily maximumreport only (mg/L)all year005
Ethylbenzene30-day averagereport only (mg/L)all year005
Ethylbenzenedaily maximumreport only (mg/L)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Offensive Conditionsvaluereport only (N=0;Y=1)all year005
Xylene [mix of m+o+p]30-day averagereport only (mg/L)all year005
Xylene [mix of m+o+p]daily maximumreport only (mg/L)all year005

How strict are these limits?

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

Same industry: the 24 Mining and Quarrying of Nonmetallic Minerals permits in Illinois.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IL0001759 · MCP: https://passage-data.com/mcp