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Tower Rock Stone Co.

Crushed And Broken Limestone, Ste. Genevieve, Missouri. NPDES permit MO0135399, in force until Apr 30, 2027. Last 12 months: no values over a limit, 1 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form Q quarterly (12 values), outfall 002 form Q quarterly (12 values), outfall 003 form M monthly (4 values), outfall 003 form Q quarterly (8 values)
Renewal application due
Nov 1, 2026 · 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, 1 of 24 reports late

Limits in force (36)

ParameterStatisticLimitMonthsOutfall
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year001
Oxygen demand, chem. [high level] [COD]monthly averagereport only (mg/L)all year001
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, settleabledaily maximumreport only (mL/L)all year001
Solids, settleablemonthly averagereport only (mL/L)all year001
Oil and grease [soxhlet extr.] tot.daily maximumreport only (mg/L)all year001
Oil and grease [soxhlet extr.] tot.monthly averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year002
Oxygen demand, chem. [high level] [COD]monthly averagereport only (mg/L)all year002
pHminimum≥ 6.5 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, settleabledaily maximumreport only (mL/L)all year002
Solids, settleablemonthly averagereport only (mL/L)all year002
Oil and grease [soxhlet extr.] tot.daily maximumreport only (mg/L)all year002
Oil and grease [soxhlet extr.] tot.monthly averagereport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
pHminimum≥ 6.5 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, settleabledaily maximumreport only (mL/L)all year003
Solids, settleablemonthly averagereport only (mL/L)all year003
Oil and grease [soxhlet extr.] tot.daily maximumreport only (mg/L)all year003
Oil and grease [soxhlet extr.] tot.monthly averagereport only (mg/L)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Volumetotalreport only (MGD)all year003
Volumemonthly totalreport only (MGD)all year003

How strict are these limits?

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

Same industry: the 7 Mining and Quarrying of Nonmetallic Minerals permits in Missouri.

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/MO0135399 · MCP: https://passage-data.com/mcp