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Columbia River Carbonates

Crushed And Broken Limestone, Woodland, Washington. NPDES permit WA0039721, in force until Sep 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form MM monthly (13 values), outfall 002 form MM monthly (8 values), outfall 003 form MM monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 2 required values missing, 0 of 36 reports late

Limits in force (23)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradedaily maximum≤ 17.5 deg Call year001
Temperature, water deg. centigrademonthly average≤ 17.5 deg Call year001
Oxygen, dissolved [DO]minimum≥ 8 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 45 mg/Lall year001
Turbidity, backgrounddaily maximumreport only (NTU) (alert, not enforceable)all year001
Turbidity, backgroundmonthly averagereport only (NTU) (alert, not enforceable)all year001
Turbidity, changedaily maximum≤ 5 NTUall year001
Turbidity, changemonthly average≤ 5 NTUall year001
pH, maximummaximum≤ 9 SUall year001
pH, minimumminimum≥ 6 SUall year001
Flowdaily maximumreport only (gal/d) (alert, not enforceable)all year001
Flowmonthly averagereport only (gal/d) (alert, not enforceable)all year001
Temperature, water deg. fahrenheitdaily maximum≤ 104 deg Fall year002
Temperature, water deg. fahrenheitmonthly average≤ 104 deg Fall year002
Oil and grease [soxhlet extr.] tot.daily maximum≤ 75 mg/Lall year002
Oil and grease [soxhlet extr.] tot.monthly average≤ 75 mg/Lall year002
pH, maximummaximum≤ 9 SUall year002
pH, minimumminimum≥ 5.5 SUall year002
Flowdaily maximum≤ 10000 gal/dall year002
Flowmonthly average≤ 5000 gal/dall year002
Turbiditydaily maximumreport only (NTU) (alert, not enforceable)all year003
Turbiditymonthly averagereport only (NTU) (alert, not enforceable)all year003

How strict are these limits?

Cited limits by parameter: Washington'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/WA0039721 · MCP: https://passage-data.com/mcp