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Northwest Hardwoods - Hamden Division

Sawmills And Planing Mills, General, Hamden, Ohio. NPDES permit OH0090875, in force until Mar 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Renewal application due
Oct 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 4 reports late

Limits in force (10)

ParameterStatisticLimitMonths
Oxygen demand, chem. [low level] [COD]monthly averagereport only (mg/L)Mar, Jun, Aug, Dec
Oxygen demand, chem. [low level] [COD]daily maximumreport only (mg/L)Mar, Jun, Aug, Dec
pHdaily minimum≥ 6.5 SUMar, Jun, Aug, Dec
pHdaily maximum≤ 9 SUMar, Jun, Aug, Dec
Solids, total suspendedmonthly average≤ 30 mg/LMar, Jun, Aug, Dec
Solids, total suspendeddaily maximum≤ 70 mg/LMar, Jun, Aug, Dec
Zinc, total [as Zn]monthly averagereport only (ug/L)Mar, Jun, Aug, Dec
Zinc, total [as Zn]daily maximumreport only (ug/L)Mar, Jun, Aug, Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)Mar, Jun, Aug, Dec
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)Mar, Jun, Aug, Dec

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

Same industry: the 15 Lumber and Wood 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/OH0090875 · MCP: https://passage-data.com/mcp