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All Ohio Ready Mix A CRH Company

Ready-Mixed Concrete, Toledo, Ohio. NPDES permit OH0142042, in force until Dec 31, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (13 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (13)

ParameterStatisticLimitMonths
Oxygen demand, chem. [low level] [COD]monthly averagereport only (mg/L)all year
Oxygen demand, chem. [low level] [COD]daily maximumreport only (mg/L)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Oil and grease [soxhlet extr.] tot.daily maximum≤ 10 mg/Lall year
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year
Turbidity [severity]monthly averagereport only (severity)all year
Turbidity [severity]daily maximumreport only (severity)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year

How strict are these limits?

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

Same industry: the 36 Stone, Clay, Glass and Concrete Products permits in Ohio.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OH0142042 · MCP: https://passage-data.com/mcp