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Tri-City Service District

Pulp Mills, major discharger, Oregon City, Oregon. NPDES permit OR0000566 expired Mar 31, 2011; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form M monthly (9 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 1 of 12 reports late

Limits in force (12)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximum≤ 35 deg Call year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)Jun–Oct
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)Jan, Feb, Mar, Apr, May, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 3625 kg/dJun–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 4275 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
BOD, 5-day, 20 deg. Cdaily maximum≤ 4350 kg/dJun–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 6800 kg/dJan, Feb, Mar, Apr, May, Nov, Dec
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedmonthly average≤ 5525 kg/dall year
Solids, total suspendeddaily maximum≤ 10275 kg/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (m3/sec)all year

How strict are these limits?

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

Same industry: the 12 Paper and Allied Products permits in Oregon.

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/OR0000566 · MCP: https://passage-data.com/mcp